/*
 * Entrada de Tailwind para ChessLabs. Se compila con tools/build-css.sh a
 * packages/core/css/chesslabs.tw.css y studio.tw.css (el rename final lo hace
 * la Task 8, cuando las reglas manuales se retiran).
 *
 * Sin preflight a proposito (tailwind.config.js: corePlugins.preflight false).
 * Sin el reset global de Tailwind, tw-border-* no dibuja nada: el navegador
 * pone border-style: none por defecto. Este base minimo, ENCAPSULADO bajo el
 * wrapper, restaura lo justo - y solo dentro del producto, nunca en el host.
 */

*, ::before, ::after {
  --tw-border-spacing-x: 0;
  --tw-border-spacing-y: 0;
  --tw-translate-x: 0;
  --tw-translate-y: 0;
  --tw-rotate: 0;
  --tw-skew-x: 0;
  --tw-skew-y: 0;
  --tw-scale-x: 1;
  --tw-scale-y: 1;
  --tw-pan-x:  ;
  --tw-pan-y:  ;
  --tw-pinch-zoom:  ;
  --tw-scroll-snap-strictness: proximity;
  --tw-gradient-from-position:  ;
  --tw-gradient-via-position:  ;
  --tw-gradient-to-position:  ;
  --tw-ordinal:  ;
  --tw-slashed-zero:  ;
  --tw-numeric-figure:  ;
  --tw-numeric-spacing:  ;
  --tw-numeric-fraction:  ;
  --tw-ring-inset:  ;
  --tw-ring-offset-width: 0px;
  --tw-ring-offset-color: #fff;
  --tw-ring-color: rgb(59 130 246 / 0.5);
  --tw-ring-offset-shadow: 0 0 #0000;
  --tw-ring-shadow: 0 0 #0000;
  --tw-shadow: 0 0 #0000;
  --tw-shadow-colored: 0 0 #0000;
  --tw-blur:  ;
  --tw-brightness:  ;
  --tw-contrast:  ;
  --tw-grayscale:  ;
  --tw-hue-rotate:  ;
  --tw-invert:  ;
  --tw-saturate:  ;
  --tw-sepia:  ;
  --tw-drop-shadow:  ;
  --tw-backdrop-blur:  ;
  --tw-backdrop-brightness:  ;
  --tw-backdrop-contrast:  ;
  --tw-backdrop-grayscale:  ;
  --tw-backdrop-hue-rotate:  ;
  --tw-backdrop-invert:  ;
  --tw-backdrop-opacity:  ;
  --tw-backdrop-saturate:  ;
  --tw-backdrop-sepia:  ;
  --tw-contain-size:  ;
  --tw-contain-layout:  ;
  --tw-contain-paint:  ;
  --tw-contain-style:  ;
}

::backdrop {
  --tw-border-spacing-x: 0;
  --tw-border-spacing-y: 0;
  --tw-translate-x: 0;
  --tw-translate-y: 0;
  --tw-rotate: 0;
  --tw-skew-x: 0;
  --tw-skew-y: 0;
  --tw-scale-x: 1;
  --tw-scale-y: 1;
  --tw-pan-x:  ;
  --tw-pan-y:  ;
  --tw-pinch-zoom:  ;
  --tw-scroll-snap-strictness: proximity;
  --tw-gradient-from-position:  ;
  --tw-gradient-via-position:  ;
  --tw-gradient-to-position:  ;
  --tw-ordinal:  ;
  --tw-slashed-zero:  ;
  --tw-numeric-figure:  ;
  --tw-numeric-spacing:  ;
  --tw-numeric-fraction:  ;
  --tw-ring-inset:  ;
  --tw-ring-offset-width: 0px;
  --tw-ring-offset-color: #fff;
  --tw-ring-color: rgb(59 130 246 / 0.5);
  --tw-ring-offset-shadow: 0 0 #0000;
  --tw-ring-shadow: 0 0 #0000;
  --tw-shadow: 0 0 #0000;
  --tw-shadow-colored: 0 0 #0000;
  --tw-blur:  ;
  --tw-brightness:  ;
  --tw-contrast:  ;
  --tw-grayscale:  ;
  --tw-hue-rotate:  ;
  --tw-invert:  ;
  --tw-saturate:  ;
  --tw-sepia:  ;
  --tw-drop-shadow:  ;
  --tw-backdrop-blur:  ;
  --tw-backdrop-brightness:  ;
  --tw-backdrop-contrast:  ;
  --tw-backdrop-grayscale:  ;
  --tw-backdrop-hue-rotate:  ;
  --tw-backdrop-invert:  ;
  --tw-backdrop-opacity:  ;
  --tw-backdrop-saturate:  ;
  --tw-backdrop-sepia:  ;
  --tw-contain-size:  ;
  --tw-contain-layout:  ;
  --tw-contain-paint:  ;
  --tw-contain-style:  ;
}

.chess-course-wrapper,
  .chess-course-wrapper *,
  .chess-course-wrapper ::before,
  .chess-course-wrapper ::after {
  box-sizing: border-box;
  border-width: 0;
  border-style: solid;
  border-color: currentColor;
}

.chess-course-wrapper .tw-hud-icono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #f8fafc;
  flex: 0 0 auto;
}

.chess-course-wrapper  .tw-hud-icono-1 {
  --tw-bg-opacity: 1;
  background-color: rgb(219 234 254 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper  .tw-hud-icono-2 {
  --tw-bg-opacity: 1;
  background-color: rgb(254 243 199 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper  .tw-hud-icono-3 {
  --tw-bg-opacity: 1;
  background-color: rgb(209 250 229 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper  .tw-hud-icono-4 {
  --tw-bg-opacity: 1;
  background-color: rgb(255 228 230 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-fixed {
  position: fixed;
}

.chess-course-wrapper .tw-absolute {
  position: absolute;
}

.chess-course-wrapper .tw-relative {
  position: relative;
}

.chess-course-wrapper .tw-sticky {
  position: sticky;
}

.chess-course-wrapper .tw-inset-0 {
  inset: 0px;
}

.chess-course-wrapper .tw-right-0 {
  right: 0px;
}

.chess-course-wrapper .tw-top-0 {
  top: 0px;
}

.chess-course-wrapper .tw-z-\[1000\] {
  z-index: 1000;
}

.chess-course-wrapper .tw-z-\[1\] {
  z-index: 1;
}

.chess-course-wrapper .tw-m-0 {
  margin: 0px;
}

.chess-course-wrapper .tw-m-\[-4px_0_18px\] {
  margin: -4px 0 18px;
}

.chess-course-wrapper .tw-m-\[0_0_18px\] {
  margin: 0 0 18px;
}

.chess-course-wrapper .tw-m-\[10px_auto_12px\] {
  margin: 10px auto 12px;
}

.chess-course-wrapper .tw-mb-\[10px\] {
  margin-bottom: 10px;
}

.chess-course-wrapper .tw-mb-\[12px\] {
  margin-bottom: 12px;
}

.chess-course-wrapper .tw-mb-\[20px\] {
  margin-bottom: 20px;
}

.chess-course-wrapper .tw-mt-auto {
  margin-top: auto;
}

.chess-course-wrapper .tw-flex {
  display: flex;
}

.chess-course-wrapper .tw-inline-flex {
  display: inline-flex;
}

.chess-course-wrapper .tw-grid {
  display: grid;
}

.chess-course-wrapper .tw-hidden {
  display: none;
}

.chess-course-wrapper .tw-h-\[32px\] {
  height: 32px;
}

.chess-course-wrapper .tw-h-\[36px\] {
  height: 36px;
}

.chess-course-wrapper .tw-h-\[85vh\] {
  height: 85vh;
}

.chess-course-wrapper .tw-max-h-\[85vh\] {
  max-height: 85vh;
}

.chess-course-wrapper .tw-min-h-0 {
  min-height: 0px;
}

.chess-course-wrapper .tw-min-h-\[200px\] {
  min-height: 200px;
}

.chess-course-wrapper .tw-min-h-\[40px\] {
  min-height: 40px;
}

.chess-course-wrapper .tw-w-\[32px\] {
  width: 32px;
}

.chess-course-wrapper .tw-w-full {
  width: 100%;
}

.chess-course-wrapper .tw-min-w-\[120px\] {
  min-width: 120px;
}

.chess-course-wrapper .tw-min-w-\[44px\] {
  min-width: 44px;
}

.chess-course-wrapper .tw-max-w-\[640px\] {
  max-width: 640px;
}

.chess-course-wrapper .tw-flex-\[1_1_0\] {
  flex: 1 1 0;
}

.chess-course-wrapper .tw-flex-\[1_1_auto\] {
  flex: 1 1 auto;
}

.chess-course-wrapper .tw-flex-shrink-0 {
  flex-shrink: 0;
}

.chess-course-wrapper .tw-cursor-pointer {
  cursor: pointer;
}

.chess-course-wrapper .tw-grid-cols-\[repeat\(auto-fill\,minmax\(260px\,1fr\)\)\] {
  grid-template-columns: repeat(auto-fill,minmax(260px,1fr));
}

.chess-course-wrapper .tw-flex-col {
  flex-direction: column;
}

.chess-course-wrapper .tw-flex-wrap {
  flex-wrap: wrap;
}

.chess-course-wrapper .tw-items-center {
  align-items: center;
}

.chess-course-wrapper .tw-items-stretch {
  align-items: stretch;
}

.chess-course-wrapper .tw-justify-end {
  justify-content: flex-end;
}

.chess-course-wrapper .tw-justify-center {
  justify-content: center;
}

.chess-course-wrapper .tw-justify-between {
  justify-content: space-between;
}

.chess-course-wrapper .tw-gap-\[10px\] {
  gap: 10px;
}

.chess-course-wrapper .tw-gap-\[14px\] {
  gap: 14px;
}

.chess-course-wrapper .tw-gap-\[2px\] {
  gap: 2px;
}

.chess-course-wrapper .tw-gap-\[5px\] {
  gap: 5px;
}

.chess-course-wrapper .tw-gap-\[6px\] {
  gap: 6px;
}

.chess-course-wrapper .tw-gap-\[8px\] {
  gap: 8px;
}

.chess-course-wrapper .tw-overflow-hidden {
  overflow: hidden;
}

.chess-course-wrapper .tw-overflow-y-auto {
  overflow-y: auto;
}

.chess-course-wrapper .tw-rounded-\[10px\] {
  border-radius: 10px;
}

.chess-course-wrapper .tw-rounded-\[12px\] {
  border-radius: 12px;
}

.chess-course-wrapper .tw-rounded-\[16px\] {
  border-radius: 16px;
}

.chess-course-wrapper .tw-rounded-\[8px\] {
  border-radius: 8px;
}

.chess-course-wrapper .tw-rounded-t-\[16px\] {
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
}

.chess-course-wrapper .tw-border {
  border-width: 1px;
}

.chess-course-wrapper .tw-border-b {
  border-bottom-width: 1px;
}

.chess-course-wrapper .tw-border-t {
  border-top-width: 1px;
}

.chess-course-wrapper .tw-border-\[\#bbf7d0\] {
  --tw-border-opacity: 1;
  border-color: rgb(187 247 208 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#bfdbfe\] {
  --tw-border-opacity: 1;
  border-color: rgb(191 219 254 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#d7dde8\] {
  --tw-border-opacity: 1;
  border-color: rgb(215 221 232 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#e5e7eb\] {
  --tw-border-opacity: 1;
  border-color: rgb(229 231 235 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#e5e9f0\] {
  --tw-border-opacity: 1;
  border-color: rgb(229 233 240 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-b-\[\#e5e9f0\] {
  --tw-border-opacity: 1;
  border-bottom-color: rgb(229 233 240 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-t-\[\#e5e9f0\] {
  --tw-border-opacity: 1;
  border-top-color: rgb(229 233 240 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#334155\] {
  --tw-bg-opacity: 1;
  background-color: rgb(51 65 85 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#92400e\] {
  --tw-bg-opacity: 1;
  background-color: rgb(146 64 14 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#eff6ff\] {
  --tw-bg-opacity: 1;
  background-color: rgb(239 246 255 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#f0fdf4\] {
  --tw-bg-opacity: 1;
  background-color: rgb(240 253 244 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#f1f5f9\] {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#f8fafc\] {
  --tw-bg-opacity: 1;
  background-color: rgb(248 250 252 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[rgba\(15\,23\,42\,0\.55\)\] {
  background-color: rgba(15,23,42,0.55);
}

.chess-course-wrapper .tw-bg-white {
  --tw-bg-opacity: 1;
  background-color: rgb(255 255 255 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[linear-gradient\(135deg\,\#2171b5\,\#1668a8\)\] {
  background-image: linear-gradient(135deg,#2171b5,#1668a8);
}

.chess-course-wrapper .tw-p-\[12px\] {
  padding: 12px;
}

.chess-course-wrapper .tw-p-\[18px\] {
  padding: 18px;
}

.chess-course-wrapper .tw-p-\[20px\] {
  padding: 20px;
}

.chess-course-wrapper .tw-p-\[24px\] {
  padding: 24px;
}

.chess-course-wrapper .tw-px-\[12px\] {
  padding-left: 12px;
  padding-right: 12px;
}

.chess-course-wrapper .tw-px-\[14px\] {
  padding-left: 14px;
  padding-right: 14px;
}

.chess-course-wrapper .tw-px-\[16px\] {
  padding-left: 16px;
  padding-right: 16px;
}

.chess-course-wrapper .tw-px-\[20px\] {
  padding-left: 20px;
  padding-right: 20px;
}

.chess-course-wrapper .tw-px-\[22px\] {
  padding-left: 22px;
  padding-right: 22px;
}

.chess-course-wrapper .tw-px-\[24px\] {
  padding-left: 24px;
  padding-right: 24px;
}

.chess-course-wrapper .tw-py-0 {
  padding-top: 0px;
  padding-bottom: 0px;
}

.chess-course-wrapper .tw-py-\[10px\] {
  padding-top: 10px;
  padding-bottom: 10px;
}

.chess-course-wrapper .tw-py-\[16px\] {
  padding-top: 16px;
  padding-bottom: 16px;
}

.chess-course-wrapper .tw-py-\[18px\] {
  padding-top: 18px;
  padding-bottom: 18px;
}

.chess-course-wrapper .tw-py-\[20px\] {
  padding-top: 20px;
  padding-bottom: 20px;
}

.chess-course-wrapper .tw-py-\[7px\] {
  padding-top: 7px;
  padding-bottom: 7px;
}

.chess-course-wrapper .tw-py-\[8px\] {
  padding-top: 8px;
  padding-bottom: 8px;
}

.chess-course-wrapper .tw-py-\[9px\] {
  padding-top: 9px;
  padding-bottom: 9px;
}

.chess-course-wrapper .tw-text-center {
  text-align: center;
}

.chess-course-wrapper .tw-text-\[0\.82rem\] {
  font-size: 0.82rem;
}

.chess-course-wrapper .tw-text-\[0\.85rem\] {
  font-size: 0.85rem;
}

.chess-course-wrapper .tw-text-\[0\.95rem\] {
  font-size: 0.95rem;
}

.chess-course-wrapper .tw-text-\[0\.9rem\] {
  font-size: 0.9rem;
}

.chess-course-wrapper .tw-text-\[1\.05rem\] {
  font-size: 1.05rem;
}

.chess-course-wrapper .tw-text-\[1\.15rem\] {
  font-size: 1.15rem;
}

.chess-course-wrapper .tw-text-\[1\.4rem\] {
  font-size: 1.4rem;
}

.chess-course-wrapper .tw-text-\[1\.8rem\] {
  font-size: 1.8rem;
}

.chess-course-wrapper .tw-text-\[1rem\] {
  font-size: 1rem;
}

.chess-course-wrapper .tw-font-bold {
  font-weight: 700;
}

.chess-course-wrapper .tw-font-semibold {
  font-weight: 600;
}

.chess-course-wrapper .tw-leading-\[1\.45\] {
  line-height: 1.45;
}

.chess-course-wrapper .tw-leading-\[1\.4\] {
  line-height: 1.4;
}

.chess-course-wrapper .tw-leading-\[1\] {
  line-height: 1;
}

.chess-course-wrapper .tw-tracking-\[-0\.01em\] {
  letter-spacing: -0.01em;
}

.chess-course-wrapper .tw-text-\[\#111827\] {
  --tw-text-opacity: 1;
  color: rgb(17 24 39 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#14532d\] {
  --tw-text-opacity: 1;
  color: rgb(20 83 45 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#1e3a8a\] {
  --tw-text-opacity: 1;
  color: rgb(30 58 138 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#1f2937\] {
  --tw-text-opacity: 1;
  color: rgb(31 41 55 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#374151\] {
  --tw-text-opacity: 1;
  color: rgb(55 65 81 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#475569\] {
  --tw-text-opacity: 1;
  color: rgb(71 85 105 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#4b5563\] {
  --tw-text-opacity: 1;
  color: rgb(75 85 99 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#5b6b7f\] {
  --tw-text-opacity: 1;
  color: rgb(91 107 127 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#92400e\] {
  --tw-text-opacity: 1;
  color: rgb(146 64 14 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-white {
  --tw-text-opacity: 1;
  color: rgb(255 255 255 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-shadow-\[0_1px_2px_rgba\(15\,23\,42\,0\.06\)\] {
  --tw-shadow: 0 1px 2px rgba(15,23,42,0.06);
  --tw-shadow-colored: 0 1px 2px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_1px_2px_rgba\(15\,23\,42\,0\.08\)\] {
  --tw-shadow: 0 1px 2px rgba(15,23,42,0.08);
  --tw-shadow-colored: 0 1px 2px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_1px_3px_rgba\(0\,0\,0\,0\.04\)\] {
  --tw-shadow: 0 1px 3px rgba(0,0,0,0.04);
  --tw-shadow-colored: 0 1px 3px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_20px_60px_rgba\(0\,0\,0\,0\.3\)\] {
  --tw-shadow: 0 20px 60px rgba(0,0,0,0.3);
  --tw-shadow-colored: 0 20px 60px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_2px_6px_rgba\(33\,113\,181\,0\.25\)\] {
  --tw-shadow: 0 2px 6px rgba(33,113,181,0.25);
  --tw-shadow-colored: 0 2px 6px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-transition-all {
  transition-property: all;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}

.chess-course-wrapper .tw-duration-150 {
  transition-duration: 150ms;
}

.chess-course-wrapper .tw-ease-\[ease\] {
  transition-timing-function: ease;
}

.chess-course-wrapper .\[transition\:\.\.\.\] {
  transition: ...;
}

/*
 * Componentes del chrome (Task 7, superficie 1). Los fondos por posicion de
 * .hud-icon (nth-child en chesslabs.css) no son expresables como utilidad por
 * posicion: van como clases de componente que core.js pone en el DOM segun el
 * indice real de la tesela. El selector lleva el wrapper a mano: @apply
 * inlinea las declaraciones y NO aplica la estrategia important del config
 * (anotado en la Task 6), y el gate G2 exige que ninguna regla sin scope
 * declare propiedades. El -1..-4 va DESPUES de la base para ganar por orden
 * de fuente, igual que hacian las reglas nth-child.
 */

/*
 * Componentes del panel de practicas (Task 7d, superficie 3). El estado vive
 * en la clase --panel del WRAPPER, y una utilidad no puede mirarlo como
 * variante de padre: con la estrategia important, [.chess-course-wrapper--panel_&]
 * compila a ".chess-course-wrapper--panel X", que exige
 * un wrapper ANIDADO dentro de si mismo y no matchea nunca. Mismo recurso que
 * los fondos nth-child del HUD: componente con el selector a mano, y el
 * @apply inlinea las declaraciones sin pasar por la estrategia important.
 *
 * El primer compuesto es .chess-course-wrapper a proposito (la estrategia
 * important no lo vuelve a prefijar cuando ya esta) y el binario envuelve el
 * resto en :is(): ".chess-course-wrapper :is(.chess-course-wrapper--panel X)"
 * exige un wrapper ancestro y un --panel ancestro, que en el panel son el
 * MISMO elemento; (0,3,0) gana a cualquier utilidad base (0,2,0) que la Task
 * 8 ponga en #game-view/#course-tab-view, sin depender del orden de fuente,
 * igual que la regla manual les ganaba por especificidad.
 * En @layer components para que la purga por build la deje fuera de
 * studio.tw.css: este build detecta las clases en alojamiento.js; el de
 * Studio no las tiene en su contenido y no las emite.
 */

/* Los overrides del panel van FUERA de @layer components: el prefijo
   important de Tailwind añadiría .chess-course-wrapper como ancestro, y
   .chess-course-wrapper--panel está EN el propio wrapper (clase compuesta),
   no en un descendiente. Como CSS plano, la especificidad (0,1,0) gana al
   base por orden de fuente y el important no lo toca. */

.chess-course-wrapper--panel .tw-vista-juego {
  display: none !important;
}

.chess-course-wrapper--panel .tw-vista-listado-panel {
  position: static !important;
  max-height: none !important;
  overflow: visible !important;
  z-index: auto !important;
}

/* ===== Reglas del producto, movidas verbatim del CSS manual (Task 8) =====
   Selectores con el wrapper delante (reporte §1.3); keyframes y @property
   top-level; medias EN SU SITIO original (reordenarlas cambia la cascada);
   dedup con la cadena de media en la clave. ===== */

.chess-course-wrapper .chess-v6-wrapper {
  max-width: 640px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #2c3e50;
}

.chess-course-wrapper .temporizador-alerta {
  color: #dc2626 !important;
  animation: temporizador-pulso 1s ease infinite;
}

.chess-course-wrapper .chess-v6-wrapper h2.chess-v6-title {
  position: relative;
  margin: 0 0 14px 0;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1f2937;
}

.chess-course-wrapper .chess-v6-wrapper h2.chess-v6-title::after {
  content: '';
  display: block;
  width: 64px;
  height: 3px;
  margin-top: 8px;
  border-radius: 2px;
  background: linear-gradient(90deg, #2171b5, #10b981);
}

.chess-course-wrapper .chess-v6-layout {
  display: flex;
  flex-direction: column;
}

.chess-course-wrapper .col-izq,
.chess-course-wrapper .col-der {
  display: contents;
}

.chess-course-wrapper .chess-v6-layout .hud-panel {
  order: 1;
}

.chess-course-wrapper .chess-v6-layout .status-box {
  order: 2;
}

.chess-course-wrapper .chess-v6-layout .chess-board-holder {
  order: 3;
}

.chess-course-wrapper .chess-v6-layout .board-tools {
  order: 3;
}

.chess-course-wrapper .chess-v6-layout .chess-controls {
  order: 4;
}

.chess-course-wrapper .chess-v6-layout .puzzle-details {
  order: 5;
}

@media (max-width: 899px) and (min-height: 461px) {
  .chess-course-wrapper .chess-controls .btn-chess {
    min-height: 44px;
  }
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-wrapper {
    max-width: 880px;
  }

  .chess-course-wrapper .chess-v6-layout {
    display: grid;
    grid-template-columns: 480px 1fr;
    gap: 14px;
    align-items: stretch;
  }

  .chess-course-wrapper .col-izq {
    display: block;
    min-width: 0;
  }

  .chess-course-wrapper .col-der {
    display: flex;
    flex-direction: column;
    min-width: 0;
  }

  .chess-course-wrapper .col-der .hud-panel {
    flex-direction: column;
    align-items: stretch;
  }

  .chess-course-wrapper .col-der .status-box {
    margin-bottom: 0;
  }

  .chess-course-wrapper .col-der .chess-controls {
    flex-direction: column;
    align-items: stretch;
    margin-top: auto;
  }
}

.chess-course-wrapper .col-centro {
  display: none;
  min-width: 0;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-centro {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje #lesson-panel {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .status-box {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .chess-board-holder {
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .board-tools {
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .chess-controls {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .puzzle-details {
    order: 6;
  }
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-wrapper.aprendizaje {
    max-width: 1150px;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje {
    grid-template-columns: minmax(0, 1fr) 400px minmax(0, 230px);
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-centro {
    display: block;
    min-width: 0;
    grid-row: 1;
    grid-column: 1;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-der {
    grid-row: 1;
    grid-column: 3;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-der .hud-item {
    min-width: 0;
  }
}

.chess-course-wrapper .hud-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.chess-course-wrapper #hud-progress {
  font-size: 1.05rem;
}

.chess-course-wrapper #hud-pistas {
  color: #92400e;
  font-size: 0.95rem;
}

.chess-course-wrapper #hud-vidas {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.chess-course-wrapper .hud-item strong {
  color: #111827;
}

.chess-course-wrapper .hud-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #f8fafc;
  flex: 0 0 auto;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(1) .hud-icon {
  background: #dbeafe;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(2) .hud-icon {
  background: #fef3c7;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(3) .hud-icon {
  background: #d1fae5;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(4) .hud-icon {
  background: #ffe4e6;
}

.chess-course-wrapper .status-box {
  border-radius: 8px;
  padding: 7px 14px;
  margin-bottom: 12px;
  font-size: 1.0rem;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  color: #374151;
  text-align: center;
  min-height: 45px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chess-course-wrapper .turno-badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  font-weight: 700;
  border: 1px solid #94a3b8;
  line-height: 1.1;
  vertical-align: middle;
  box-sizing: border-box;
}

.chess-course-wrapper .turno-badge.Blancas {
  background: #ffffff;
  color: #1f2937;
  border-color: #cbd5e1;
}

.chess-course-wrapper .turno-badge.Negras {
  background: #1f2937;
  color: #ffffff;
}

.chess-course-wrapper .casilla-destino {
  display: inline-block;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: 2px;
  padding: 0 10px;
  margin: 0 4px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  color: #ffffff;
  border: 1px solid #1e40af;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
  line-height: 1.4;
  vertical-align: middle;
}

.chess-course-wrapper .status-box.loading {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}

.chess-course-wrapper .status-box.success {
  background: #d1fae5;
  border-color: #a7f3d0;
  color: #065f46;
}

.chess-course-wrapper .status-box.error {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.chess-course-wrapper .chess-board-holder {
  position: relative;
  width: 480px;
  max-width: 100%;
  margin: 0 auto 12px;
  border-radius: 6px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.12), 0 1px 3px rgba(15, 23, 42, 0.08);
}

.chess-course-wrapper .chess-v6-board {
  width: 100%;
  margin: 0;
  border-radius: 6px;
  overflow: hidden;
}

.chess-course-wrapper .chess-board-holder.board-turno::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 6px;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.4), 0 0 18px 2px rgba(16, 185, 129, 0.25);
  pointer-events: none;
  z-index: 5;
}

.chess-course-wrapper .board-tools {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 10px auto 12px;
}

.chess-course-wrapper .btn-tool {
  height: 36px;
  min-width: 44px;
  padding: 0 12px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #ffffff;
  color: #374151;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  transition: background-color 0.15s ease, transform 0.12s ease;
}

.chess-course-wrapper .btn-tool:hover:not(:disabled) {
  background: #f1f5f9;
  transform: translateY(-1px);
}

.chess-course-wrapper .btn-tool:active:not(:disabled) {
  transform: translateY(0);
}

.chess-course-wrapper .btn-tool:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.chess-course-wrapper .btn-tool:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .start-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.4);
  border-radius: 6px;
  z-index: 10;
}

.chess-course-wrapper button.btn-start {
  background: linear-gradient(180deg, #047857, #065f46);
  font-size: 1.5rem;
  padding: 14px 40px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

.chess-course-wrapper .btn-start:hover:not(:disabled) {
  filter: brightness(1.06);
}

.chess-course-wrapper .board-shake {
  animation: board-shake 0.4s ease;
}

.chess-course-wrapper .board-glow {
  animation: board-glow 0.7s ease;
}

.chess-course-wrapper .btn-chess {
  border: none;
  border-radius: 8px;
  min-height: 40px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
  transition: background-color 0.15s ease, opacity 0.15s ease, transform 0.12s ease, box-shadow 0.12s ease;
}

.chess-course-wrapper .btn-chess:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(15, 23, 42, 0.18);
}

.chess-course-wrapper .btn-chess:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12);
  filter: brightness(0.92);
}

.chess-course-wrapper .btn-chess:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .btn-start:focus-visible {
  outline-color: #ffffff;
}

.chess-course-wrapper .btn-hint:hover:not(:disabled) {
  background: #78350f;
}

.chess-course-wrapper .btn-skip:hover:not(:disabled) {
  background: #1e293b;
}

.chess-course-wrapper .puzzle-details {
  font-size: 0.78rem;
  color: #475569;
  margin-bottom: 12px;
}

.chess-course-wrapper .btn-icon {
  font-size: 1.05rem;
  line-height: 1;
}

.chess-course-wrapper .studio-chess-form {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

.chess-course-wrapper .studio-chess-form .form-group {
  margin-bottom: 14px;
}

.chess-course-wrapper .studio-chess-form label {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: #374151;
}

.chess-course-wrapper .studio-chess-form .form-control {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 0.9rem;
  background: #fff;
}

.chess-course-wrapper .studio-chess-form .row {
  display: flex;
  gap: 16px;
}

.chess-course-wrapper .studio-chess-form .col-md-6,
.chess-course-wrapper .studio-chess-form .col-md-4 {
  flex: 1;
  min-width: 0;
}

.chess-course-wrapper .studio-chess-form .form-actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
}

.chess-course-wrapper .studio-chess-form h4 {
  margin: 0 0 12px 0;
}

.cm-chessboard.chesslabs .board .square.white {
  fill: #eef5ff;
}

.cm-chessboard.chesslabs .board .square.black {
  fill: #2171b5;
}

.cm-chessboard.chesslabs .board .border {
  fill: #2171b5;
  stroke: none;
}

.cm-chessboard.chesslabs.border-type-none .board .border {
  stroke: #2171b5;
  stroke-width: 0;
  fill: #2171b5;
}

.cm-chessboard.chesslabs.border-type-thin .board .border {
  stroke: #2171b5;
  stroke-width: 0.7%;
  fill: #2171b5;
}

.cm-chessboard.chesslabs.border-type-frame .board .border {
  fill: #eef5ff;
  stroke: none;
}

.cm-chessboard.chesslabs.border-type-frame .board .border-inner {
  fill: #2171b5;
  stroke: #2171b5;
  stroke-width: 0.7%;
}

.cm-chessboard.chesslabs .coordinates .coordinate.black {
  fill: #eef5ff;
}

.cm-chessboard.chesslabs .coordinates .coordinate.white {
  fill: #014bb8;
}

.chess-course-wrapper .hud-item #hud-vidas {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.chess-course-wrapper .vida-llena {
  color: #ff4d6d;
}

.chess-course-wrapper .vida-vacia {
  color: #e2e8f0;
  animation: corazon-perdido 0.4s ease;
}

.chess-course-wrapper .vida-llena,
.chess-course-wrapper .vida-vacia {
  font-size: 1.15rem;
  line-height: 1;
}

.cm-chessboard .markers .marker.marker-frame-primary {
  stroke: #ffae00 !important;
  stroke-width: 2.4px !important;
  opacity: 0.85 !important;
}

.cm-chessboard .markers .marker.marker-circle-primary {
  stroke: #ffae00 !important;
  stroke-width: 4px !important;
  opacity: 0.9 !important;
}

.cm-chessboard .arrow-info .arrow-head {
  fill: #ffae00 !important;
  fill-rule: nonzero;
}

.cm-chessboard .arrow-info .arrow-line {
  stroke: #ffae00 !important;
  stroke-linecap: round;
  opacity: 0.75 !important;
}

.cm-chessboard .arrow-secondary .arrow-head {
  fill: blue !important;
  fill-rule: nonzero;
  opacity: 0.85 !important;
}

.cm-chessboard .arrow-secondary .arrow-line {
  stroke: blue !important;
  stroke-linecap: round;
  opacity: 0.55 !important;
}

.cm-chessboard .chesslabs-labels {
  pointer-events: none;
  -webkit-user-select: none;
     -moz-user-select: none;
          user-select: none;
}

.cm-chessboard .chesslabs-labels text {
  font-family: inherit;
  font-weight: 700;
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 3;
  paint-order: stroke fill;
}

@media (max-height: 460px) and (orientation: landscape) {
  .chess-course-wrapper .chess-v6-wrapper h2.chess-v6-title {
    margin: 0 0 6px 0;
    font-size: 1.0rem;
  }

  .chess-course-wrapper .hud-panel {
    gap: 6px;
    margin-bottom: 6px;
  }

  .chess-course-wrapper .hud-item {
    padding: 4px 8px;
    font-size: 0.85rem;
    min-width: 88px;
  }

  .chess-course-wrapper .status-box {
    padding: 3px 10px;
    margin-bottom: 6px;
    font-size: 0.85rem;
    min-height: 34px;
  }

  .chess-course-wrapper .chess-v6-board-actions {
    margin-top: 6px;
    gap: 6px;
  }
}

.chess-course-wrapper .task-overlay {
  position: absolute;
  z-index: 8;
  width: min(64%, 330px);
  border-radius: 10px;
  background: rgba(255, 250, 240, 0.52);
  border: 1px solid rgba(215, 202, 165, 0.85);
  border-top: 4px solid #3b82f6;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.16);
  padding: 6px 12px 8px;
  font-size: 0.92rem;
  line-height: 1.3;
  color: #292419;
  pointer-events: none;
  transition: top 0.18s ease, bottom 0.18s ease, left 0.18s ease, right 0.18s ease;
}

.chess-course-wrapper .task-overlay.ov-arriba {
  top: 8px;
  bottom: auto;
}

.chess-course-wrapper .task-overlay.ov-abajo {
  top: auto;
  bottom: 8px;
  border-top-width: 1px;
  border-bottom: 4px solid #3b82f6;
}

.chess-course-wrapper .task-overlay.ov-derecha {
  right: 8px;
  left: auto;
}

.chess-course-wrapper .task-overlay.ov-izquierda {
  left: 8px;
  right: auto;
}

.chess-course-wrapper .task-overlay.ov-abajo.tipo-identificar {
  border-bottom-color: #3b82f6;
}

.chess-course-wrapper .task-overlay.ov-abajo.tipo-mover {
  border-bottom-color: #059669;
}

.chess-course-wrapper .task-overlay.ov-abajo.tipo-respuesta {
  border-bottom-color: #d97706;
}

.chess-course-wrapper .task-overlay-boton {
  position: absolute;
  z-index: 9;
  width: 30px;
  height: 30px;
  min-width: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 250, 240, 0.6);
  color: #4a3a12;
  font-size: 1.0rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  transition: transform 0.12s ease, background-color 0.12s ease;
}

.chess-course-wrapper .task-overlay-boton:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.9);
}

.chess-course-wrapper .task-overlay-boton.ov-arriba {
  top: 8px;
}

.chess-course-wrapper .task-overlay-boton.ov-abajo {
  bottom: 8px;
}

.chess-course-wrapper .task-overlay-boton.ov-derecha {
  right: 8px;
}

.chess-course-wrapper .task-overlay-boton.ov-izquierda {
  left: 8px;
}

.chess-course-wrapper .task-overlay .ov-cab {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.chess-course-wrapper .task-overlay .ov-contador {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #8a722f;
}

.chess-course-wrapper .task-overlay .ov-cerrar {
  border: none;
  background: transparent;
  color: #475569;
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 2px 5px;
  border-radius: 4px;
  pointer-events: auto;
}

.chess-course-wrapper .task-overlay .ov-cerrar:hover {
  color: #475569;
  background: #f1f5f9;
}

.chess-course-wrapper .task-overlay .ov-cuerpo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.chess-course-wrapper .task-overlay .ov-icono {
  font-size: 1.1rem;
  line-height: 1.2;
}

.chess-course-wrapper .task-overlay .ov-instru {
  margin: 0;
  flex: 1;
  font-weight: 500;
}

.chess-course-wrapper .task-overlay .ov-destino {
  display: inline-block;
  font-size: 1.0rem;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 1px 9px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  color: #ffffff;
  border: 1px solid #1e40af;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
  white-space: nowrap;
  flex-shrink: 0;
}

.chess-course-wrapper .task-overlay .ov-destino.d-mover {
  background: linear-gradient(135deg, #059669, #065f46);
  border-color: #065f46;
  box-shadow: 0 2px 6px rgba(5, 150, 105, 0.4);
}

.chess-course-wrapper .task-overlay .ov-destino.d-fila {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-color: #b45309;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-caballo {
  background: linear-gradient(135deg, #7c3aed, #5b21b6);
  border-color: #5b21b6;
  box-shadow: 0 2px 6px rgba(124, 58, 237, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-rey {
  background: linear-gradient(135deg, #d97706, #b45309);
  border-color: #b45309;
  box-shadow: 0 2px 6px rgba(217, 119, 6, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-pieza {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  border-color: #1e3a8a;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-jaque {
  background: linear-gradient(135deg, #b91c1c, #991b1b);
  border-color: #7f1d1d;
  box-shadow: 0 2px 6px rgba(185, 28, 28, 0.45);
}

.chess-course-wrapper .task-overlay .ov-respuesta {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed #e2d9ba;
}

.chess-course-wrapper .task-overlay .ov-pregunta {
  margin: 0;
  flex: 1;
  font-weight: 600;
}

.chess-course-wrapper .task-overlay .ov-respuesta .btn-lp {
  font-size: 1rem;
  padding: 6px 18px;
}

.chess-course-wrapper .task-overlay .ov-si {
  background: #047857;
  border-color: #047857;
  color: #fff;
  font-weight: 700;
}

.chess-course-wrapper .task-overlay .ov-no {
  background: #b91c1c;
  border-color: #b91c1c;
  color: #fff;
  font-weight: 700;
}

.chess-course-wrapper .task-overlay .ov-nota {
  margin-top: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  min-height: 0;
}

.chess-course-wrapper .task-overlay .ov-nota.nota-exito {
  color: #065f46;
}

.chess-course-wrapper .task-overlay .ov-nota.nota-error {
  color: #991b1b;
}

.chess-course-wrapper .task-overlay.ov-entra {
  animation: ov-entrar 0.25s ease;
}

.chess-course-wrapper .task-overlay.ov-exito {
  animation: ov-pulso 0.6s ease;
}

.chess-course-wrapper .task-overlay.ov-error {
  animation: ov-sacudida 0.4s ease;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .task-overlay {
    left: 4px;
    right: 4px;
    top: 4px;
    padding: 6px 8px 8px;
    font-size: 0.85rem;
  }

  .chess-course-wrapper .task-overlay .ov-destino {
    font-size: 0.85rem;
    padding: 1px 7px;
  }

  .chess-course-wrapper .task-overlay .ov-respuesta .btn-lp {
    font-size: 0.9rem;
    padding: 5px 14px;
  }
}

.chess-course-wrapper .chesslabs-xray {
  pointer-events: none;
}

.cm-chessboard.xray-piezas-ocultas g.pieces g[data-piece] {
  visibility: hidden !important;
}

.cm-chessboard.xray-piezas-solo_reyes g.pieces g[data-piece][data-xray-oculta] {
  visibility: hidden !important;
}

.chess-course-wrapper .chesslabs-xray rect.xray-amenaza {
  fill: #dc2626;
}

.chess-course-wrapper .chesslabs-xray rect.xray-doble {
  fill: #991b1b;
}

.chess-course-wrapper .chesslabs-xray rect.xray-propio {
  fill: #2563eb;
}

.chess-course-wrapper .chesslabs-xray rect.xray-colgada {
  fill: none;
  stroke: #dc2626;
  stroke-width: 2.5;
}

.chess-course-wrapper .chesslabs-xray rect.xray-jaque {
  fill: #facc15;
}

.chess-course-wrapper .chesslabs-xray circle.xray-simbolo {
  stroke-width: 1.6;
}

.chess-course-wrapper .chesslabs-xray circle.xray-sim-b {
  fill: #ffffff;
  stroke: #5f5955;
}

.chess-course-wrapper .chesslabs-xray circle.xray-sim-n {
  fill: #5f5955;
  stroke: #9a948f;
}

.chess-course-wrapper .chesslabs-xray text.xray-glifo {
  font-size: 18px;
  text-anchor: middle;
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', serif;
  fill: #1f2937;
  paint-order: stroke;
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 2.5px;
  stroke-linejoin: round;
}

.chess-course-wrapper .chesslabs-xray text.xray-glifo-n {
  fill: #f3f4f6;
  stroke: rgba(31, 41, 55, 0.85);
}

.cm-chessboard.pausa-activa {
  cursor: progress;
}

.cm-chessboard.pausa-activa .pieces-layer {
  opacity: 0.55;
  transition: opacity 0.2s ease;
}

.cm-chessboard .pieces-layer {
  transition: opacity 0.2s ease;
}

.chess-course-wrapper .hud-pistas.pausa-cuenta {
  color: #b91c1c;
  font-weight: 700;
  animation: pausa-pulso 1s ease-in-out infinite;
}

.chess-course-wrapper .chesslabs-knight {
  pointer-events: none;
}

.chess-course-wrapper .chesslabs-knight circle.chesslabs-knight-paso {
  fill: rgba(37, 99, 235, 0.18);
  stroke: rgba(37, 99, 235, 0.75);
  stroke-width: 1.4;
}

.chess-course-wrapper .chesslabs-knight circle.chesslabs-knight-paso.final {
  fill: rgba(16, 185, 129, 0.28);
  stroke: rgba(5, 150, 105, 0.95);
  stroke-width: 2;
}

.chess-course-wrapper .chesslabs-knight text.chesslabs-knight-txt {
  fill: #1e3a8a;
  paint-order: stroke;
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 2px;
  stroke-linejoin: round;
  font-family: 'Segoe UI', system-ui, sans-serif;
}

.chess-course-wrapper .chesslabs-knight text.chesslabs-knight-txt.final {
  fill: #065f46;
}

.cm-chessboard.ciego-blancas,
.cm-chessboard.ciego-negras,
.cm-chessboard.ciego-ambas {
  --ciego-opacidad: 0.28;
}

.cm-chessboard.ciego-blancas g.pieces g[data-piece][data-ciego],
.cm-chessboard.ciego-negras g.pieces g[data-piece][data-ciego],
.cm-chessboard.ciego-ambas g.pieces g[data-piece][data-ciego] {
  opacity: var(--ciego-opacidad, 0.28);
}

.cm-chessboard.ciego-blancas g.pieces g[data-piece][data-ciego-revelada],
.cm-chessboard.ciego-negras g.pieces g[data-piece][data-ciego-revelada],
.cm-chessboard.ciego-ambas g.pieces g[data-piece][data-ciego-revelada] {
  opacity: 1;
}

.chess-course-wrapper .chesslabs-foco {
  pointer-events: none;
}

.chess-course-wrapper .foco-halo {
  fill: none;
  stroke-width: 3;
  stroke-linejoin: round;
  animation: foco-latido 0.9s ease-out 2;
}

.chess-course-wrapper .foco-rect {
  fill: none;
  stroke-width: 4;
  stroke-linejoin: round;
  animation: foco-latido 0.9s ease-out 2;
}

.chess-course-wrapper .foco-rect-relleno {
  fill-opacity: 0.16;
}

.chess-course-wrapper .foco-rect.foco-rojo {
  stroke: rgba(220, 38, 38, 0.95);
  fill: rgba(220, 38, 38, 0.12);
}

.chess-course-wrapper .foco-rect.foco-azul {
  stroke: rgba(37, 99, 235, 0.95);
  fill: rgba(37, 99, 235, 0.12);
}

.chess-course-wrapper .foco-rect.foco-verde {
  stroke: rgba(5, 150, 105, 0.95);
  fill: rgba(5, 150, 105, 0.12);
}

.chess-course-wrapper .foco-rect.foco-ambar {
  stroke: rgba(217, 119, 6, 0.95);
  fill: rgba(217, 119, 6, 0.14);
}

.chess-course-wrapper .foco-rect.foco-rojo {
  animation-name: foco-latido-rojo;
}

.chess-course-wrapper .foco-halo.foco-rojo {
  stroke: rgba(220, 38, 38, 0.95);
  fill: rgba(220, 38, 38, 0.16);
}

.chess-course-wrapper .foco-halo.foco-azul {
  stroke: rgba(37, 99, 235, 0.95);
  fill: rgba(37, 99, 235, 0.16);
}

.chess-course-wrapper .foco-halo.foco-verde {
  stroke: rgba(5, 150, 105, 0.95);
  fill: rgba(5, 150, 105, 0.16);
}

.chess-course-wrapper .foco-halo.foco-ambar {
  stroke: rgba(217, 119, 6, 0.95);
  fill: rgba(217, 119, 6, 0.18);
}

.chess-course-wrapper .foco-halo.foco-rojo {
  animation-name: foco-latido-rojo;
}

.chess-course-wrapper .chesslabs-foco .foco-halo {
  transform-origin: center;
  transform-box: fill-box;
}

@media (prefers-reduced-motion: reduce) {
  .chess-course-wrapper .foco-halo {
    animation: none;
    opacity: 0.9;
  }
}

.chess-course-wrapper .comeback-panel {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  z-index: 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255, 251, 235, 0.96);
  border: 1px solid #fcd34d;
  border-bottom: 4px solid #d97706;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.22);
  max-width: 90%;
  animation: comeback-entra 0.28s ease;
}

.chess-course-wrapper .comeback-pregunta {
  margin: 0;
  font-size: 0.92rem;
  color: #292419;
  text-align: center;
}

.chess-course-wrapper .comeback-botones {
  display: flex;
  gap: 10px;
}

.chess-course-wrapper .comeback-botones .btn-lp {
  font-size: 0.95rem;
  padding: 6px 20px;
}

.chess-course-wrapper .comeback-si {
  background: #047857;
  border-color: #065f46;
  color: #fff;
}

.chess-course-wrapper .comeback-no {
  background: #b91c1c;
  border-color: #7f1d1d;
  color: #fff;
}

.chess-course-wrapper .hud-timer.reloj-jugada {
  color: #0f172a;
  font-weight: 700;
}

.chess-course-wrapper .hud-timer.reloj-jugada.temporizador-alerta {
  color: #b91c1c;
  animation: reloj-pulso 1s ease-in-out infinite;
}

.chess-course-wrapper .eval-panel {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  z-index: 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(240, 246, 255, 0.96);
  border: 1px solid #bfdbfe;
  border-bottom: 4px solid #2563eb;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.2);
  max-width: 92%;
}

.chess-course-wrapper .eval-botones {
  display: flex;
  gap: 8px;
}

.chess-course-wrapper .eval-botones .btn-lp {
  font-size: 0.95rem;
  padding: 7px 18px;
}

.chess-course-wrapper .eval-blancas {
  background: #f8fafc;
  border: 1px solid #94a3b8;
  color: #0f172a;
}

.chess-course-wrapper .eval-tablas {
  background: #f1f5f9;
  border: 1px solid #94a3b8;
  color: #334155;
}

.chess-course-wrapper .eval-negras {
  background: #1e293b;
  border: 1px solid #0f172a;
  color: #f8fafc;
}

.chess-course-wrapper .eval-feedback {
  display: none;
  font-size: 0.9rem;
  text-align: center;
  padding: 6px 10px;
  border-radius: 8px;
  max-width: 340px;
}

.chess-course-wrapper .eval-feedback.acierto {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.chess-course-wrapper .eval-feedback.fallo {
  background: #fee2e2;
  color: #7f1d1d;
  border: 1px solid #fca5a5;
}

.chess-course-wrapper .cv-panel {
  margin: 12px auto 4px;
  max-width: 520px;
  text-align: center;
}

.chess-course-wrapper .cv-tarea {
  background: rgba(15, 23, 42, 0.06);
  border: 1px dashed rgba(15, 23, 42, 0.25);
  border-radius: 10px;
  padding: 10px 14px;
}

.chess-course-wrapper .cv-pregunta {
  font-weight: 700;
  color: #1e1b4b;
  margin-bottom: 8px;
}

.chess-course-wrapper .cv-opciones {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 4px;
}

.chess-course-wrapper .cv-btn {
  border: 1px solid #2563eb;
  background: #fff;
  color: #1e3a8a;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.15s ease, transform 0.1s ease;
}

.chess-course-wrapper .cv-btn:hover {
  background: #eff6ff;
  transform: translateY(-1px);
}

.chess-course-wrapper .cv-btn:active {
  transform: translateY(0);
}

.chess-course-wrapper .cv-estado {
  font-size: 0.82rem;
  color: #64748b;
  margin-top: 4px;
}

.chess-course-wrapper .cv-bar {
  font-weight: 700;
  color: #1e3a8a;
  padding: 6px 0;
}

.chess-course-wrapper .fg-checklist {
  margin: 10px auto 4px;
  max-width: 520px;
  text-align: left;
  font-size: 0.9rem;
}

.chess-course-wrapper .fg-checklist-titulo {
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #6d28d9;
  margin-bottom: 4px;
  text-align: left;
}

.chess-course-wrapper .fg-chequeo {
  color: #475569;
  padding: 1px 0 1px 4px;
  border-left: 3px solid transparent;
}

.chess-course-wrapper .fg-chequeo.hecho {
  color: #065f46;
  border-left-color: #10b981;
}

.chess-course-wrapper .chess-board-holder .sin-datos {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #7f1d1d;
  background: rgba(254, 242, 242, 0.94);
  border: 2px dashed #fca5a5;
  border-radius: 12px;
  z-index: 30;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-panel {
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-item {
  flex: 0 0 auto;
  min-width: 0;
  width: 100%;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel > *,
.chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-panel > .hud-item {
  box-sizing: border-box;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis #hud-pv {
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.85rem;
  color: #64748b;
  overflow-wrap: anywhere;
  line-height: 1.35;
  text-align: center;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.tablero-analisis {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 260px) minmax(0, 480px) 28px minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel {
    display: flex;
    flex-direction: column;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    align-self: stretch;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel .ta-lista {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel .ta-lista-filas {
    flex: 1 1 auto;
    max-height: none;
    min-height: 90px;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-centro {
    display: block;
    grid-row: 1;
    grid-column: 3;
    min-width: 0;
    align-self: start;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-der {
    grid-row: 1;
    grid-column: 4;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-centro {
    display: block;
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis #ta-controles {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis #ta-lista {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis #ta-fen-bloque {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .status-box {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .chess-board-holder {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .board-tools {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .chess-controls {
    order: 6;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .puzzle-details {
    order: 7;
  }
}

.chess-course-wrapper .ta-eval-vertical {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 0;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-pista {
  position: relative;
  box-sizing: border-box;
  width: 14px;
  height: 100%;
  overflow: hidden;
  border: 1px solid #94a3b8;
  border-radius: 7px;
  background: linear-gradient(to bottom, #444 var(--eval-percent, 50%), #c0c0c0 var(--eval-percent, 50%));
  transition: --eval-percent 1s ease;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-pista::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 7px;
  box-shadow: 0 0 5px rgb(0 0 0 / 0.5) inset;
  pointer-events: none;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-pista.reverse {
  transform: rotateX(180deg);
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-marcas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 12.5%;
  opacity: 0.4;
  border-bottom: 2px ridge #888;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(1) {
  height: 12.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(2) {
  height: 25%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(3) {
  height: 37.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(4) {
  height: 50%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(5) {
  height: 62.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(6) {
  height: 75%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(7) {
  height: 87.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick.cero {
  top: 6px;
  left: 0;
  height: 50%;
  margin-top: -3px;
  opacity: 1;
  border-bottom: 7px solid #3692e7;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-nota {
  position: absolute;
  left: 50%;
  writing-mode: vertical-rl;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.66rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-nota.arriba {
  top: 5px;
  transform: translateX(-50%) rotate(180deg);
  color: #e2e8f0;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-nota.abajo {
  bottom: 5px;
  transform: translateX(-50%);
  color: #0f172a;
}

.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.arriba {
  color: #0f172a;
}

.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.abajo {
  color: #e2e8f0;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .ta-eval-vertical {
    height: auto !important;
    flex-direction: column;
    padding: 6px 0 0;
    margin: 0 auto 12px;
    max-width: 480px;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-pista {
    width: 100%;
    height: 12px;
    border-radius: 6px;
    background: linear-gradient(to right, #444 var(--eval-percent, 50%), #c0c0c0 var(--eval-percent, 50%));
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-pista::after {
    border-radius: 6px;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-pista.reverse {
    transform: rotate(180deg);
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-marcas {
    display: none;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-nota {
    position: static;
    writing-mode: horizontal-tb;
    transform: none;
    display: block;
    text-align: center;
    margin-top: 4px;
    font-size: 0.72rem;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-nota.arriba,
.chess-course-wrapper .ta-eval-vertical .ta-eval-nota.abajo,
.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.arriba,
.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.abajo {
    color: #334155;
  }
}

.chess-course-wrapper .ta-fuente {
  font-size: 0.7rem;
  font-weight: 400;
  color: #64748b;
  text-align: center;
  line-height: 1.2;
}

.chess-course-wrapper .ta-controles {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto 8px;
}

.chess-course-wrapper .ta-fila-nav,
.chess-course-wrapper .ta-fila-acciones {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .ta-fila-nav .ta-btn,
.chess-course-wrapper .ta-fila-acciones .ta-btn {
  flex: 1 1 auto;
}

.chess-course-wrapper .ta-btn {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #1e293b;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.chess-course-wrapper .ta-btn:hover:not(:disabled) {
  background: #f1f5f9;
  border-color: #94a3b8;
}

.chess-course-wrapper .ta-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chess-course-wrapper .ta-btn.ta-analizar {
  background: #1d4ed8;
  border-color: #1e40af;
  color: #ffffff;
}

.chess-course-wrapper .ta-btn.ta-analizar:hover:not(:disabled) {
  background: #1e40af;
}

.chess-course-wrapper .ta-btn.ta-limpiar {
  background: #fff7ed;
  border-color: #fdba74;
}

.chess-course-wrapper .ta-btn.ta-reiniciar {
  background: #f5f3ff;
  border-color: #c4b5fd;
}

.chess-course-wrapper .ta-select,
.chess-course-wrapper .ta-input {
  min-width: 0;
  padding: 5px 7px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  font-size: 0.82rem;
}

.chess-course-wrapper .ta-select {
  flex: 0 1 150px;
}

.chess-course-wrapper .ta-input {
  flex: 1 1 130px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

.chess-course-wrapper .ta-fen-bloque {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 8px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
}

.chess-course-wrapper .ta-bloque-titulo {
  flex: 1 0 100%;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #475569;
}

.chess-course-wrapper .ta-fen-bloque .ta-select,
.chess-course-wrapper .ta-fen-bloque .ta-input,
.chess-course-wrapper .ta-fen-bloque .ta-btn {
  flex: 1 1 100%;
}

.chess-course-wrapper .pgn-bloque {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 8px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
}

.chess-course-wrapper .pgn-bloque-titulo {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #475569;
}

.chess-course-wrapper .pgn-textarea {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  padding: 6px 7px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.74rem;
  line-height: 1.45;
  color: #1e293b;
  resize: vertical;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

.chess-course-wrapper .pgn-textarea:focus {
  outline: 2px solid #93c5fd;
  outline-offset: -1px;
  border-color: #60a5fa;
}

.chess-course-wrapper .pgn-textarea[readonly] {
  background: #f8fafc;
  color: #334155;
}

.chess-course-wrapper .pgn-aviso {
  min-height: 1em;
  font-size: 0.74rem;
  line-height: 1.35;
}

.chess-course-wrapper .pgn-aviso.ok {
  color: #15803d;
}

.chess-course-wrapper .pgn-aviso.error {
  color: #b91c1c;
}

.chess-course-wrapper .pgn-fila {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chess-course-wrapper .pgn-btn {
  flex: 1 1 auto;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #1e293b;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.chess-course-wrapper .pgn-btn:hover:not(:disabled) {
  background: #f1f5f9;
  border-color: #94a3b8;
}

.chess-course-wrapper .pgn-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chess-course-wrapper .pgn-btn.pgn-exportar {
  background: #1d4ed8;
  border-color: #1e40af;
  color: #ffffff;
}

.chess-course-wrapper .pgn-btn.pgn-exportar:hover:not(:disabled) {
  background: #1e40af;
}

.chess-course-wrapper .pgn-fichero {
  display: none;
}

@media (max-width: 768px) {
  .chess-course-wrapper .pgn-btn {
    flex: 1 1 100%;
  }
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.pgn-reproductor {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 300px) minmax(0, 480px) minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel {
    display: flex;
    flex-direction: column;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    gap: 8px;
    align-self: stretch;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .col-der {
    grid-row: 1;
    grid-column: 3;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .col-centro {
    display: none;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-lista {
    flex: 1 1 auto;
    min-height: 0;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .hud-panel {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .hud-item {
    flex: 0 0 auto;
    min-width: 0;
    width: 100%;
    box-sizing: border-box;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .status-box {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .chess-board-holder {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .board-tools {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-cabecera {
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-nav {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-actual {
    order: 6;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-selector {
    order: 7;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-lista {
    order: 8;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-bloque {
    order: 9;
  }
}

.chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel > *,
.chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel .pgn-bloque {
  box-sizing: border-box;
}

.chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel .pgn-fila .pgn-btn {
  flex: 1 1 45%;
}

.chess-course-wrapper .pgn-rep-cabecera {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 8px;
  padding: 7px 8px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
}

.chess-course-wrapper .pgn-rep-tag {
  display: flex;
  gap: 6px;
  font-size: 0.74rem;
  line-height: 1.35;
}

.chess-course-wrapper .pgn-rep-tag-nombre {
  flex: 0 0 6.5rem;
  color: #64748b;
  font-weight: 600;
}

.chess-course-wrapper .pgn-rep-tag-valor {
  flex: 1 1 auto;
  min-width: 0;
  color: #1e293b;
  overflow-wrap: break-word;
}

.chess-course-wrapper .pgn-rep-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 6px;
}

.chess-course-wrapper .pgn-rep-btn {
  flex: 0 0 auto;
  min-width: 32px;
  padding: 5px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  color: #334155;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
}

.chess-course-wrapper .pgn-rep-btn:hover:not(:disabled) {
  background: #eff6ff;
  border-color: #60a5fa;
}

.chess-course-wrapper .pgn-rep-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.chess-course-wrapper .pgn-rep-auto {
  flex: 1 1 auto;
}

.chess-course-wrapper .pgn-rep-auto.activo {
  background: #1e40af;
  border-color: #1e40af;
  color: #ffffff;
}

.chess-course-wrapper .pgn-rep-actual {
  margin-bottom: 6px;
  padding: 4px 8px;
  border-radius: 8px;
  background: #eff6ff;
  color: #1e40af;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 700;
  text-align: center;
}

.chess-course-wrapper .pgn-rep-lista {
  max-height: 260px;
  overflow-y: auto;
  padding: 4px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
}

.chess-course-wrapper .pgn-rep-fila {
  display: flex;
  align-items: stretch;
  gap: 3px;
}

.chess-course-wrapper .pgn-rep-num {
  flex: 0 0 2.1rem;
  padding: 3px 0;
  color: #475569;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.74rem;
  text-align: right;
}

.chess-course-wrapper .pgn-rep-jugada {
  flex: 1 1 0;
  min-width: 0;
  padding: 3px 6px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: #1e293b;
  font-family: "DejaVu Sans", "Segoe UI Symbol", system-ui, sans-serif;
  font-size: 0.8rem;
  line-height: 1.3;
  text-align: left;
  cursor: pointer;
}

.chess-course-wrapper .pgn-rep-jugada:hover {
  background: #e0f2fe;
}

.chess-course-wrapper .pgn-rep-jugada.activa {
  background: #1d4ed8;
  border-color: #1d4ed8;
  color: #ffffff;
  font-weight: 700;
}

.chess-course-wrapper .pgn-rep-vacio {
  margin: 4px 2px;
  color: #475569;
  font-size: 0.76rem;
  font-style: italic;
}

.chess-course-wrapper .pgn-rep-selector {
  box-sizing: border-box;
  width: 100%;
  margin-bottom: 6px;
  padding: 5px 7px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  color: #1e293b;
  font-size: 0.76rem;
}

.chess-course-wrapper .ta-lista {
  width: 100%;
  max-width: 100%;
  margin: 0 auto 8px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
  overflow: hidden;
}

.chess-course-wrapper .ta-lista-cabecera {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  border-bottom: 1px solid #e2e8f0;
  background: #f8fafc;
}

.chess-course-wrapper .ta-lista-titulo {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #475569;
}

.chess-course-wrapper .ta-select.ta-forma {
  flex: 0 1 auto;
}

.chess-course-wrapper .ta-lista-filas {
  max-height: 168px;
  overflow-y: auto;
  padding: 4px 6px 6px;
}

.chess-course-wrapper .ta-lista-vacia {
  margin: 6px 2px;
  font-size: 0.8rem;
  font-style: italic;
  color: #475569;
}

.chess-course-wrapper .ta-lista-fila {
  display: flex;
  align-items: baseline;
  gap: 10px;
  line-height: 1.7;
}

.chess-course-wrapper .ta-lista-num {
  flex: 0 0 2.1em;
  text-align: right;
  padding-right: 2px;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: #475569;
}

.chess-course-wrapper .ta-jugada {
  flex: 0 1 auto;
  min-width: 4.6em;
  padding: 1px 4px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: #1e293b;
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', serif;
  font-variant-emoji: text;
  font-size: 0.92rem;
  line-height: 1.5;
  text-align: left;
  white-space: pre;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

.chess-course-wrapper .ta-jugada:hover {
  background: #f1f5f9;
}

.chess-course-wrapper .ta-jugada-actual {
  background: #dbeafe;
  box-shadow: inset 0 0 0 1px #93c5fd;
  font-weight: 700;
}

.chess-course-wrapper .ta-jugada-actual:hover {
  background: #dbeafe;
}

.chess-course-wrapper .exportar-bloque .exportar-grupo {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px 0;
}

.chess-course-wrapper .exportar-bloque .exportar-grupo > .exportar-label,
.chess-course-wrapper .exportar-bloque .exportar-grupo > .exportar-select,
.chess-course-wrapper .exportar-bloque .exportar-grupo > .exportar-input {
  width: 100%;
}

.chess-course-wrapper .exportar-bloque .exportar-fila {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .exportar-bloque .exportar-label {
  font-size: 0.72rem;
  color: #475569;
  white-space: nowrap;
}

.chess-course-wrapper .exportar-bloque .exportar-select,
.chess-course-wrapper .exportar-bloque .exportar-input {
  box-sizing: border-box;
  min-width: 0;
  max-width: 100%;
  padding: 5px 6px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 0.76rem;
  color: #1e293b;
  background: #ffffff;
}

.chess-course-wrapper .exportar-bloque .exportar-fila .exportar-input {
  flex: 1 1 70px;
}

.chess-course-wrapper .exportar-bloque .exportar-fila .exportar-select {
  flex: 0 1 auto;
}

.chess-course-wrapper .exportar-bloque .exportar-select-corta,
.chess-course-wrapper .exportar-bloque .exportar-input-corta {
  flex: 0 1 92px;
}

.chess-course-wrapper .exportar-bloque .exportar-input:disabled,
.chess-course-wrapper .exportar-bloque .exportar-input:disabled + * {
  opacity: 0.45;
}

.chess-course-wrapper .exportar-bloque .exportar-nota {
  font-size: 0.68rem;
  line-height: 1.35;
  color: #64748b;
}

.chess-course-wrapper .exportar-bloque .exportar-cajas {
  gap: 10px;
}

.chess-course-wrapper .exportar-bloque .exportar-check {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.74rem;
  color: #334155;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > *,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-panel > .hud-item {
  box-sizing: border-box;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .col-centro {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-panel {
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-item {
  flex: 0 0 auto;
  min-width: 0;
  width: 100%;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas #hud-pv {
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.95rem;
  color: #1e293b;
  overflow-wrap: anywhere;
  line-height: 1.35;
  text-align: center;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.explorador-aperturas {
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 280px) minmax(0, 480px) minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel {
    display: flex;
    flex-direction: column;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    min-height: 0;
    gap: 10px;
    align-self: stretch;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-bloque,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-fila-nav {
    flex: 0 0 auto;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-bloque-hijos {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijos {
    flex: 1 1 auto;
    overflow-y: auto;
    max-height: min(224px, calc(100vh - 360px));
    min-height: 90px;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .col-der {
    grid-row: 1;
    grid-column: 3;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-bloque,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-fila-nav {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .status-box {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .chess-board-holder {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .board-tools {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .chess-controls {
    order: 6;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .puzzle-details {
    order: 7;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijos {
    max-height: 220px;
    overflow-y: auto;
  }
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-bloque {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 8px 10px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-bloque-titulo {
  display: block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #64748b;
  margin-bottom: 6px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-apertura {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-eco {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #1e40af;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 4px;
  padding: 1px 6px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-nombre {
  font-size: 0.92rem;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-cifras {
  font-size: 0.72rem;
  color: #64748b;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-puzzles {
  display: inline-block;
  margin-left: 6px;
  padding: 0 5px;
  font-size: 0.7rem;
  color: #475569;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  white-space: nowrap;
  cursor: default;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-hijo-info .ea-puzzles {
  margin-left: 0;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar-caja:empty,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica.ea-vacia,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-bloque-vacio {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 7px 10px;
  font-size: 0.8rem;
  color: #ffffff;
  background: #2171b5;
  border: 1px solid #1a5c96;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar:hover {
  background: #1a5c96;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas--practica .ea-bloque-hijos,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas--practica .ea-fila-nav,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas--practica .ea-bloque-busca {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-cab {
  font-size: 0.92rem;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-marcador {
  margin-top: 6px;
  font-size: 0.78rem;
  color: #334155;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-meta {
  font-size: 0.72rem;
  color: #64748b;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-progreso {
  margin: 6px 0;
  padding: 4px 8px;
  font-size: 0.76rem;
  color: #1e3a5f;
  background: #eff6ff;
  border-left: 3px solid #2171b5;
  border-radius: 3px;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-siguiente {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 7px 10px;
  font-size: 0.8rem;
  color: #ffffff;
  background: #15803d;
  border: 1px solid #166534;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-siguiente:hover {
  background: #166534;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-volver {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 6px 10px;
  font-size: 0.78rem;
  color: #334155;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-volver:hover {
  background: #f1f5f9;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-pista {
  margin: 8px 0 0;
  font-size: 0.68rem;
  color: #64748b;
  line-height: 1.35;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-buscador {
  width: 100%;
  font-size: 0.82rem;
  padding: 5px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #ffffff;
  color: #1e293b;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-buscador:focus {
  outline: 2px solid #2171b5;
  outline-offset: -1px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultados {
  margin-top: 6px;
  max-height: 190px;
  overflow-y: auto;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultado {
  display: block;
  width: 100%;
  text-align: left;
  font-size: 0.76rem;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 5px;
  padding: 4px 7px;
  margin-bottom: 4px;
  cursor: pointer;
  overflow-wrap: anywhere;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultado:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultado:focus {
  border-color: #2171b5;
  background: #eff6ff;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo {
  display: grid;
  grid-template-columns: 2.6em 1fr;
  grid-template-areas: "jugada info" "barra barra";
  align-items: center;
  gap: 2px 6px;
  width: 100%;
  text-align: left;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 5px 7px;
  margin-bottom: 5px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo:focus {
  border-color: #2171b5;
  background: #eff6ff;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-jugada {
  grid-area: jugada;
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.92rem;
  font-weight: 600;
  color: #1e293b;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-info {
  grid-area: info;
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-nombre {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.7rem;
  color: #475569;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-num {
  flex: 0 0 auto;
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
  color: #475569;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-barra {
  grid-area: barra;
  display: block;
  height: 4px;
  border-radius: 2px;
  background: #e2e8f0;
  overflow: hidden;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-barra-relleno {
  display: block;
  height: 100%;
  border-radius: 2px;
  background: #2171b5;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-vacio {
  margin: 2px 0;
  font-size: 0.72rem;
  font-style: italic;
  color: #475569;
  line-height: 1.35;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-linea {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  max-height: 78px;
  overflow-y: auto;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov {
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.82rem;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 2px 5px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov-negro {
  background: #e2e8f0;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov:focus {
  border-color: #2171b5;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-fila-nav {
  display: flex;
  gap: 5px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-btn {
  flex: 1 1 auto;
  font-size: 0.92rem;
  padding: 5px 0;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-btn:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-btn:focus {
  border-color: #2171b5;
  background: #eff6ff;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.versus-motor {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 300px) minmax(0, 480px) minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .col-centro {
    display: block;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    align-self: start;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .col-der {
    grid-row: 1;
    grid-column: 3;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.versus-motor .col-centro {
    display: block;
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .chess-controls {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .puzzle-details {
    order: 6;
  }
}

.chess-course-wrapper .coach-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
  padding: 10px 11px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #ffffff;
}

.chess-course-wrapper .coach-titulo {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #334155;
  padding-bottom: 6px;
  border-bottom: 1px solid #eef2f7;
}

.chess-course-wrapper .coach-linea {
  font-size: 0.72rem;
  line-height: 1.35;
  color: #475569;
  background: #f8fafc;
  border: 1px solid #eef2f7;
  border-radius: 6px;
  padding: 5px 7px;
}

.chess-course-wrapper .coach-cuerpo {
  font-size: 0.8rem;
  line-height: 1.45;
  color: #1e293b;
  overflow-wrap: anywhere;
  max-height: 62vh;
  overflow-y: auto;
}

.chess-course-wrapper .coach-cuerpo.coach-vacio {
  color: #64748b;
  font-style: italic;
}

.chess-course-wrapper .coach-cuerpo.coach-espera {
  color: #92400e;
}

.chess-course-wrapper .coach-cuerpo.coach-texto {
  white-space: normal;
}

.chess-course-wrapper .coach-cuerpo p {
  margin: 0 0 6px;
  white-space: pre-line;
}

.chess-course-wrapper .coach-cuerpo p:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .coach-cuerpo p.coach-h {
  margin: 10px 0 5px;
  font-weight: 700;
  color: #0f172a;
  white-space: normal;
}

.chess-course-wrapper .coach-cuerpo ul,
.chess-course-wrapper .coach-cuerpo ol {
  margin: 0 0 6px;
  padding-left: 18px;
}

.chess-course-wrapper .coach-cuerpo li {
  margin: 0 0 3px;
}

.chess-course-wrapper .coach-cuerpo hr {
  border: 0;
  border-top: 1px solid #eef2f7;
  margin: 9px 0;
}

.chess-course-wrapper .coach-cuerpo strong {
  color: #0f172a;
}

.chess-course-wrapper .coach-cuerpo code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.94em;
  background: #f1f5f9;
  border-radius: 3px;
  padding: 0 3px;
}

.chess-course-wrapper .coach-boton {
  font-size: 0.8rem;
  padding: 7px 8px;
  color: #ffffff;
  background: #2171b5;
  border: 1px solid #1b5e93;
  border-radius: 7px;
  cursor: pointer;
}

.chess-course-wrapper .coach-boton:hover:not(:disabled),
.chess-course-wrapper .coach-boton:focus-visible:not(:disabled) {
  background: #1b5e93;
}

.chess-course-wrapper .coach-boton:disabled {
  opacity: 0.55;
  cursor: default;
}

.chess-course-wrapper .mp-bandeja {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin: 6px 0;
  min-height: 34px;
}

.chess-course-wrapper .mp-pieza {
  width: 34px;
  height: 34px;
  padding: 0;
  font-size: 24px;
  line-height: 1;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(15, 23, 42, 0.22);
  border-radius: 7px;
  cursor: pointer;
}

.chess-course-wrapper .mp-pieza:hover:not(:disabled),
.chess-course-wrapper .mp-pieza:focus-visible:not(:disabled) {
  background: #e0e7ff;
}

.chess-course-wrapper .mp-pieza.sel {
  background: #1e1b4b;
  border-color: #1e1b4b;
  box-shadow: 0 0 0 2px rgba(30, 27, 75, 0.35);
}

.chess-course-wrapper .mp-aviso {
  font-size: 13px;
  opacity: 0.75;
  margin-top: 2px;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .chess-board-holder {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .hud-panel {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .chess-controls {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego #puzzle-details {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .col-der .status-box {
  margin-bottom: 4px;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.analiticas-juego {
    grid-template-columns: minmax(0, 1fr);
  }
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .col-izq {
  max-width: 100%;
}

.chess-course-wrapper .aj-cuenta {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.chess-course-wrapper .aj-cuenta .aj-bloque-titulo {
  margin: 0 0 4px;
}

.chess-course-wrapper .aj-cuenta-fila {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin: 6px 0;
}

.chess-course-wrapper .aj-cuenta-etiqueta {
  font-size: 0.78rem;
  color: #475569;
  min-width: 74px;
}

.chess-course-wrapper .aj-cuenta-input {
  flex: 1 1 160px;
  min-width: 120px;
  max-width: 260px;
  padding: 5px 8px;
  font-size: 0.9rem;
  border: 1px solid #cbd5e1;
  border-radius: 5px;
  background: #fff;
  color: #0f172a;
}

.chess-course-wrapper .aj-cuenta-input:focus {
  outline: 2px solid #1d4ed8;
  outline-offset: 1px;
  border-color: #1d4ed8;
}

.chess-course-wrapper .aj-cuenta-nota {
  font-size: 0.78rem;
  color: #64748b;
  margin-top: 6px;
}

.chess-course-wrapper .aj-cuenta-nota.error {
  color: #b91c1c;
}

@media (max-width: 599px) {
  .chess-course-wrapper .aj-cuenta-input {
    max-width: none;
  }
}

.chess-course-wrapper .aj-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0 0 12px;
}

.chess-course-wrapper .aj-bloque {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 14px;
}

.chess-course-wrapper .aj-bloque > * {
  box-sizing: border-box;
}

.chess-course-wrapper .aj-bloque-titulo {
  margin: 0 0 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .aj-bloque-titulo .aj-pill {
  margin-left: auto;
  font-size: 0.68rem;
  font-weight: 600;
  color: #475569;
  background: #e2e8f0;
  border-radius: 9px;
  padding: 1px 7px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.chess-course-wrapper .aj-aviso {
  margin: 0;
  font-size: 0.85rem;
  color: #7c2d12;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 6px;
  padding: 7px 10px;
}

.chess-course-wrapper .aj-nota {
  margin: 0;
  font-size: 0.8rem;
  color: #475569;
}

.chess-course-wrapper .aj-cabecera {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.chess-course-wrapper .aj-cabecera h3 {
  margin: 0;
  font-size: 1.05rem;
  color: #0f172a;
}

.chess-course-wrapper .aj-cabecera .aj-plataforma {
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 4px;
  padding: 1px 6px;
  color: #fff;
  background: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-right: 8px;
}

.chess-course-wrapper .aj-cabecera .aj-plataforma.lichess {
  background: #7b3f00;
}

.chess-course-wrapper .aj-cabecera .aj-plataforma.chesscom {
  background: #1a56db;
}

.chess-course-wrapper .aj-cabecera .aj-sub {
  width: 100%;
  font-size: 0.8rem;
  color: #64748b;
}

.chess-course-wrapper .aj-tarjetas {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 8px;
}

.chess-course-wrapper .aj-tarjeta {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 7px;
  padding: 8px 10px;
}

.chess-course-wrapper .aj-tarjeta h4 {
  margin: 0 0 2px;
  font-size: 0.82rem;
  color: #475569;
  font-weight: 600;
}

.chess-course-wrapper .aj-tarjeta .aj-nota {
  margin: 0;
}

.chess-course-wrapper .aj-rating {
  font-size: 1.35rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.1;
}

.chess-course-wrapper .aj-rating small {
  font-size: 0.7rem;
  font-weight: 600;
  color: #64748b;
}

.chess-course-wrapper .aj-balance {
  display: flex;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  margin: 2px 0 4px;
  background: #e2e8f0;
}

.chess-course-wrapper .aj-balance span {
  display: block;
  height: 100%;
}

.chess-course-wrapper .aj-balance .v {
  background: #15803d;
}

.chess-course-wrapper .aj-balance .d {
  background: #b91c1c;
}

.chess-course-wrapper .aj-balance .e {
  background: #64748b;
}

.chess-course-wrapper .aj-balance-texto {
  font-size: 0.76rem;
  color: #475569;
}

.chess-course-wrapper .aj-tira {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}

.chess-course-wrapper .aj-tira i {
  width: 15px;
  height: 15px;
  border-radius: 3px;
  display: block;
  font-style: normal;
  font-size: 0.6rem;
  line-height: 15px;
  text-align: center;
  color: #fff;
  font-weight: 700;
}

.chess-course-wrapper .aj-tira i.v {
  background: #15803d;
}

.chess-course-wrapper .aj-tira i.d {
  background: #b91c1c;
}

.chess-course-wrapper .aj-tira i.e {
  background: #64748b;
}

.chess-course-wrapper .aj-serie {
  width: 100%;
  height: 120px;
  display: block;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
}

.chess-course-wrapper .aj-serie-eje {
  stroke: #cbd5e1;
  stroke-width: 1;
}

.chess-course-wrapper .aj-serie-linea {
  fill: none;
  stroke: #1d4ed8;
  stroke-width: 2;
}

.chess-course-wrapper .aj-serie-punto {
  fill: #1d4ed8;
}

.chess-course-wrapper .aj-barras {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.chess-course-wrapper .aj-barra-fila {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 58px;
  gap: 8px;
  align-items: center;
}

.chess-course-wrapper .aj-barra-etq {
  font-size: 0.78rem;
  color: #334155;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chess-course-wrapper .aj-barra-pista {
  background: #e2e8f0;
  border-radius: 4px;
  height: 14px;
  overflow: hidden;
}

.chess-course-wrapper .aj-barra-relleno {
  background: #1d4ed8;
  height: 100%;
  border-radius: 4px;
}

.chess-course-wrapper .aj-barra-num {
  font-size: 0.74rem;
  color: #64748b;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.chess-course-wrapper .aj-meta {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid #e2e8f0;
}

.chess-course-wrapper .aj-meta:last-child {
  border-bottom: 0;
}

.chess-course-wrapper .aj-meta-marca {
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
}

.chess-course-wrapper .aj-meta.ok .aj-meta-marca {
  color: #15803d;
}

.chess-course-wrapper .aj-meta.no .aj-meta-marca {
  color: #b91c1c;
}

.chess-course-wrapper .aj-meta-texto {
  font-size: 0.85rem;
  color: #1e293b;
}

.chess-course-wrapper .aj-meta-texto em {
  font-style: normal;
  color: #475569;
  font-size: 0.78rem;
}

.chess-course-wrapper .aj-meta-valor {
  font-size: 0.82rem;
  color: #475569;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.chess-course-wrapper .aj-nota {
  margin-top: 8px;
  padding: 8px 10px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 6px;
  font-size: 0.85rem;
  color: #1e3a8a;
  font-weight: 600;
}

.chess-course-wrapper .aj-nota.sin {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #475569;
  font-weight: 400;
}

.chess-course-wrapper .aj-acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chess-course-wrapper .aj-boton {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 6px;
  border: 1px solid #1d4ed8;
  background: #1d4ed8;
  color: #fff;
  cursor: pointer;
}

.chess-course-wrapper .aj-rejilla3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.chess-course-wrapper .aj-col {
  min-width: 0;
}

.chess-course-wrapper .aj-col-titulo {
  margin: 0 0 4px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
}

.chess-course-wrapper .aj-barras-titulo {
  margin: 6px 0 1px;
  font-size: 0.76rem;
  color: #475569;
}

@media (max-width: 767px) {
  .chess-course-wrapper .aj-rejilla3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.chess-course-wrapper .aj-donut-caja {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.chess-course-wrapper .aj-donut {
  width: 110px;
  height: 110px;
  flex: 0 0 auto;
}

.chess-course-wrapper .aj-donut-total {
  font-size: 0.95rem;
  font-weight: 700;
  fill: #0f172a;
}

.chess-course-wrapper .aj-donut-sub {
  font-size: 0.58rem;
  fill: #64748b;
}

.chess-course-wrapper .aj-donut-leyenda {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: #334155;
}

.chess-course-wrapper .aj-donut-leyenda-fila {
  display: flex;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .aj-donut-punto {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.chess-course-wrapper .aj-pestanas {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 10px;
  border-bottom: 2px solid #e2e8f0;
}

.chess-course-wrapper .aj-pestana {
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border: 1px solid #e2e8f0;
  border-bottom: none;
  background: #f8fafc;
  color: #475569;
  font: inherit;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
}

.chess-course-wrapper .aj-pestana:hover {
  background: #eef2f7;
  color: #1e293b;
}

.chess-course-wrapper .aj-pestana.activa {
  background: #fff;
  color: #0f172a;
  font-weight: 700;
  border-color: #cbd5e1;
  box-shadow: inset 0 -3px 0 #1d4ed8;
}

.chess-course-wrapper .aj-pestana:focus-visible {
  outline: 2px solid #1e40af;
  outline-offset: -2px;
}

.chess-course-wrapper .aj-pestana-cuerpo:focus-visible {
  outline: 2px solid #1e40af;
  outline-offset: 2px;
}

.chess-course-wrapper .aj-boton.secundario {
  background: #fff;
  color: #1d4ed8;
}

.chess-course-wrapper .aj-boton:disabled {
  opacity: 0.55;
  cursor: default;
}

.chess-course-wrapper .aj-boton:focus-visible {
  outline: 2px solid #1e40af;
  outline-offset: 2px;
}

.chess-course-wrapper .aj-tabla-actividad {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  margin-top: 6px;
}

.chess-course-wrapper .aj-tabla-actividad th,
.chess-course-wrapper .aj-tabla-actividad td {
  padding: 3px 6px;
  text-align: center;
}

.chess-course-wrapper .aj-tabla-actividad th {
  background: #f1f5f9;
  color: #334155;
  font-weight: 600;
}

.chess-course-wrapper .aj-tabla-actividad td {
  color: #475569;
}

.chess-course-wrapper .aj-tabla-actividad tr:nth-child(even) td {
  background: #f8fafc;
}

.chess-course-wrapper .aj-tabla-actividad td:first-child {
  text-align: left;
  font-weight: 600;
}

.chess-course-wrapper .aj-tabla-actividad tbody tr:last-child td {
  background: #eef2f7;
  font-weight: 700;
  color: #0f172a;
}

.chess-course-wrapper .aj-torneos {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chess-course-wrapper .aj-torneo {
  border: 1px solid #e2e8f0;
  border-left: 3px solid #1d4ed8;
  border-radius: 5px;
  padding: 5px 8px;
  background: #fff;
}

.chess-course-wrapper .aj-torneo-nombre {
  font-size: 0.85rem;
  font-weight: 600;
  color: #0f172a;
}

.chess-course-wrapper .aj-torneo-detalle {
  font-size: 0.76rem;
  color: #64748b;
  margin-top: 1px;
}

.chess-course-wrapper .aj-torneo-enlace {
  font-size: 0.76rem;
  color: #1d4ed8;
  text-decoration: none;
}

.chess-course-wrapper .aj-torneo-enlace:hover {
  text-decoration: underline;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .aj-tarjetas {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .chess-course-wrapper .aj-serie {
    height: 100px;
  }
}

.chess-course-wrapper .studio-chess-form {
  max-width: 860px;
  margin: 0 auto;
  border-radius: 14px;
  border: 1px solid #e5e9f0;
  background: #ffffff;
  overflow: hidden;
}

.chess-course-wrapper .studio-chess-form * {
  box-sizing: border-box;
}

.chess-course-wrapper .studio-chess-form .form-header {
  padding: 22px 28px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-bottom: 1px solid #eef1f6;
  background: linear-gradient(135deg, #f8fbff, #ffffff);
}

.chess-course-wrapper .studio-chess-form .form-header-badge {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2171b5, #10b981);
  box-shadow: 0 4px 10px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .studio-chess-form .form-header-badge svg {
  width: 24px;
  height: 24px;
  fill: #ffffff;
}

.chess-course-wrapper .studio-chess-form .form-header h3 {
  margin: 2px 0 4px 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1f2937;
}

.chess-course-wrapper .studio-chess-form .form-header p {
  margin: 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.5;
}

.chess-course-wrapper .studio-chess-form .form-body {
  padding: 24px 28px 8px;
}

.chess-course-wrapper .studio-chess-form .section {
  padding: 18px 20px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid #e5e9f0;
  background: #fbfcfe;
}

.chess-course-wrapper .studio-chess-form .section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #334155;
  text-transform: uppercase;
}

.chess-course-wrapper .studio-chess-form .section-title .section-accent {
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: linear-gradient(180deg, #2171b5, #10b981);
}

.chess-course-wrapper .studio-chess-form .section-desc {
  margin: 0 0 16px 0;
  color: #475569;
  font-size: 12.5px;
  line-height: 1.4;
  padding-left: 14px;
}

.chess-course-wrapper .studio-chess-form .section-subtitle {
  margin: 0 0 16px 0;
  font-size: 13px;
  font-weight: 700;
  color: #334155;
}

.chess-course-wrapper .studio-chess-form .section-note {
  margin: 0;
  color: #5b6b7f;
  font-size: 13px;
  line-height: 1.5;
}

.chess-course-wrapper .studio-chess-form .form-group {
  margin-bottom: 16px;
}

.chess-course-wrapper .studio-chess-form .form-group:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .studio-chess-form label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}

.chess-course-wrapper .studio-chess-form label.checkbox-inline {
  font-weight: 500;
  color: #475569;
  background: #ffffff;
  border: 1px solid #e5e9f0;
  border-radius: 8px;
  padding: 9px 12px;
  margin: 0 0 8px 0;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.chess-course-wrapper .studio-chess-form label.checkbox-inline:hover {
  border-color: #2171b5;
  background: #f4f9ff;
}

.chess-course-wrapper .studio-chess-form label.checkbox-inline input {
  margin-right: 8px;
  vertical-align: middle;
  cursor: pointer;
}

.chess-course-wrapper .studio-chess-form label.checkbox-block {
  display: block;
}

.chess-course-wrapper .studio-chess-form .form-control {
  display: block;
  width: 100%;
  padding: 9px 12px;
  font-size: 14px;
  color: #1f2937;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  box-shadow: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chess-course-wrapper .studio-chess-form .form-control:focus {
  border-color: #2171b5;
  outline: 0;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.15);
}

.chess-course-wrapper .studio-chess-form select.form-control {
  cursor: pointer;
}

.chess-course-wrapper .studio-chess-form .form-hint {
  display: block;
  margin-top: 6px;
  color: #475569;
  font-size: 12px;
  line-height: 1.4;
}

.chess-course-wrapper .studio-chess-form hr.hr-muted {
  border: 0;
  border-top: 1px solid #eef1f6;
  margin: 0 0 16px 0;
}

.chess-course-wrapper .studio-chess-form .form-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  border-top: 1px solid #eef1f6;
  background: #f8fafc;
}

.chess-course-wrapper .studio-chess-form .btn {
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
}

.chess-course-wrapper .studio-chess-form .btn:active {
  transform: translateY(1px);
}

.chess-course-wrapper .studio-chess-form .btn-cancel {
  background: #ffffff;
  border-color: #d7dde8;
  color: #475569;
}

.chess-course-wrapper .studio-chess-form .btn-cancel:hover {
  background: #f1f5f9;
  border-color: #c3ccda;
}

.chess-course-wrapper .studio-chess-form .btn-save {
  background: linear-gradient(135deg, #2171b5, #1668a8);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .studio-chess-form .btn-save:hover {
  background: linear-gradient(135deg, #1b62a0, #115a94);
  box-shadow: 0 6px 16px rgba(33, 113, 181, 0.32);
}

.chess-course-wrapper .studio-chess-form .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.chess-course-wrapper .studio-chess-form .studio-step[hidden] {
  display: none;
}

.chess-course-wrapper .studio-chess-form .studio-stepper {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  padding: 10px 12px;
  color: #64748b;
  font-size: 13px;
  font-weight: 600;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 9px;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-active {
  color: #155a94;
  background: #f0f7ff;
  border-color: #8dbce6;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-complete {
  color: #087443;
  background: #f0fdf7;
  border-color: #86d5b1;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-number {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: #ffffff;
  font-size: 12px;
  background: #5b6b7f;
  border-radius: 50%;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-active .studio-stepper-number {
  background: #2171b5;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-complete .studio-stepper-number {
  background: #10a36e;
}

.chess-course-wrapper .studio-chess-form .studio-step-heading {
  margin-bottom: 18px;
}

.chess-course-wrapper .studio-chess-form .studio-step-heading h4,
.chess-course-wrapper .studio-chess-form .studio-settings-header h4 {
  margin: 0 0 4px;
  color: #1f2937;
  font-size: 16px;
  font-weight: 700;
}

.chess-course-wrapper .studio-chess-form .studio-step-heading p,
.chess-course-wrapper .studio-chess-form .studio-settings-header p {
  margin: 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.45;
}

.chess-course-wrapper .studio-chess-form .btn-back {
  color: #334155;
  background: #ffffff;
  border-color: #cbd5e1;
}

.chess-course-wrapper .studio-chess-form .btn-back:hover {
  color: #155a94;
  background: #f4f9ff;
  border-color: #8dbce6;
}

.chess-course-wrapper .studio-chess-form .studio-settings-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eef1f6;
}

.chess-course-wrapper .studio-chess-form .studio-settings-header .btn-back {
  flex: 0 0 auto;
}

.chess-course-wrapper .studio-chess-form .studio-settings-titles {
  flex: 1 1 auto;
  min-width: 0;
}

.chess-course-wrapper .studio-chess-form .studio-manual-toggle {
  flex: 0 0 auto;
  color: #155a94;
  background: #eff6ff;
  border-color: #bfdbfe;
}

.chess-course-wrapper .studio-chess-form .studio-manual-toggle:hover {
  background: #dbeafe;
  border-color: #93c5fd;
}

.chess-course-wrapper .studio-chess-form .studio-settings-actions {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chess-course-wrapper .studio-chess-form .studio-export-toggle {
  color: #155a94;
  background: #eff6ff;
  border-color: #bfdbfe;
}

.chess-course-wrapper .studio-chess-form .studio-export-toggle:hover {
  background: #dbeafe;
  border-color: #93c5fd;
}

.chess-course-wrapper .studio-chess-form .studio-export-toggle[aria-expanded="true"] {
  background: #dbeafe;
  border-color: #3b82f6;
  font-weight: 600;
}

.chess-course-wrapper .studio-chess-form .studio-export-panel {
  margin-bottom: 20px;
  padding: 16px 20px;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  border-left: 4px solid #2171b5;
  background: #f8fafc;
}

.chess-course-wrapper .studio-chess-form .studio-export-panel[hidden] {
  display: none;
}

.chess-course-wrapper .studio-chess-form .studio-manual {
  margin-bottom: 20px;
  padding: 16px 20px;
  border-radius: 10px;
  border: 1px solid #bfdbfe;
  border-left: 4px solid #3b82f6;
  background: #eff6ff;
}

.chess-course-wrapper .studio-chess-form .studio-manual[hidden] {
  display: none;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion {
  margin-bottom: 16px;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion h5 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 700;
  color: #1e3a8a;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: #334155;
}

.chess-course-wrapper .studio-chess-form .studio-manual-empty {
  margin: 0;
  font-size: 13px;
  color: #64748b;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla th,
.chess-course-wrapper .studio-chess-form .studio-manual-tabla td {
  padding: 6px 10px;
  text-align: left;
  border-bottom: 1px solid #e5e9f0;
  vertical-align: top;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla th {
  background: #f8fafc;
  font-weight: 700;
  color: #334155;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla code,
.chess-course-wrapper .studio-chess-form .studio-manual pre code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
}

.chess-course-wrapper .studio-chess-form .studio-manual pre {
  margin: 8px 0 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: #1f2937;
  color: #e5e7eb;
  overflow-x: auto;
  font-size: 12px;
}

.chess-course-wrapper .studio-chess-form #studio-common-fields {
  margin-top: 16px;
}

.chess-course-wrapper .studio-dynamic-form {
  width: 100%;
  min-width: 0;
}

.chess-course-wrapper .studio-dynamic-form *,
.chess-course-wrapper #studio-mode-form * {
  box-sizing: border-box;
}

.chess-course-wrapper .studio-dynamic-form .section,
.chess-course-wrapper #studio-mode-form .section {
  padding: 18px 20px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid #e5e9f0;
  background: #fbfcfe;
}

.chess-course-wrapper .studio-dynamic-form .form-group,
.chess-course-wrapper #studio-mode-form .form-group {
  margin-bottom: 16px;
}

.chess-course-wrapper .studio-dynamic-form .form-group:last-child,
.chess-course-wrapper #studio-mode-form .form-group:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .studio-dynamic-form label,
.chess-course-wrapper #studio-mode-form label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-inline,
.chess-course-wrapper #studio-mode-form label.checkbox-inline {
  font-weight: 500;
  color: #475569;
  background: #ffffff;
  border: 1px solid #e5e9f0;
  border-radius: 8px;
  padding: 9px 12px;
  margin: 0 0 8px 0;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-inline:hover,
.chess-course-wrapper #studio-mode-form label.checkbox-inline:hover {
  border-color: #2171b5;
  background: #f4f9ff;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-inline input,
.chess-course-wrapper #studio-mode-form label.checkbox-inline input {
  margin-right: 8px;
  vertical-align: middle;
  cursor: pointer;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-block,
.chess-course-wrapper #studio-mode-form label.checkbox-block {
  display: block;
}

.chess-course-wrapper .studio-dynamic-form .form-control,
.chess-course-wrapper #studio-mode-form .form-control {
  display: block;
  width: 100%;
  padding: 9px 12px;
  font-size: 14px;
  color: #1f2937;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  box-shadow: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chess-course-wrapper .studio-dynamic-form .form-control:focus,
.chess-course-wrapper #studio-mode-form .form-control:focus {
  border-color: #2171b5;
  outline: 0;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.15);
}

.chess-course-wrapper .studio-dynamic-form select.form-control,
.chess-course-wrapper #studio-mode-form select.form-control {
  cursor: pointer;
}

.chess-course-wrapper .studio-dynamic-form .form-hint,
.chess-course-wrapper #studio-mode-form .form-hint {
  display: block;
  margin-top: 6px;
  color: #475569;
  font-size: 12px;
  line-height: 1.4;
}

.chess-course-wrapper .studio-dynamic-form .section-title,
.chess-course-wrapper #studio-mode-form .section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #334155;
  text-transform: uppercase;
}

.chess-course-wrapper .studio-dynamic-form .section-title .section-accent,
.chess-course-wrapper #studio-mode-form .section-title .section-accent {
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: linear-gradient(180deg, #2171b5, #10b981);
}

.chess-course-wrapper .studio-dynamic-form .section-desc,
.chess-course-wrapper #studio-mode-form .section-desc {
  margin: 0 0 16px 0;
  color: #475569;
  font-size: 12.5px;
  line-height: 1.4;
  padding-left: 14px;
}

.chess-course-wrapper .studio-dynamic-form .section-subtitle,
.chess-course-wrapper #studio-mode-form .section-subtitle {
  margin: 0 0 16px 0;
  font-size: 13px;
  font-weight: 700;
  color: #334155;
}

.chess-course-wrapper .studio-dynamic-form .section-note,
.chess-course-wrapper #studio-mode-form .section-note {
  margin: 0;
  color: #5b6b7f;
  font-size: 13px;
  line-height: 1.5;
}

.chess-course-wrapper .studio-dynamic-form hr.hr-muted,
.chess-course-wrapper #studio-mode-form hr.hr-muted {
  border: 0;
  border-top: 1px solid #eef1f6;
  margin: 0 0 16px 0;
}

.chess-course-wrapper .studio-chess-form .row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -6px;
  margin-left: -6px;
}

.chess-course-wrapper .studio-chess-form .row > .col-md-4,
.chess-course-wrapper .studio-chess-form .row > .col-md-6,
.chess-course-wrapper .studio-chess-form .row > .col-md-12 {
  padding-right: 6px;
  padding-left: 6px;
}

.chess-course-wrapper .studio-chess-form .col-md-4 {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
}

.chess-course-wrapper .studio-chess-form .col-md-6 {
  flex: 0 0 50%;
  max-width: 50%;
}

.chess-course-wrapper .studio-chess-form .col-md-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

.chess-course-wrapper .studio-category-section {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid #eef1f6;
}

.chess-course-wrapper .studio-category-section:first-of-type {
  margin-top: 8px;
  padding-top: 0;
  border-top: 0;
}

.chess-course-wrapper .studio-category-section > h4 {
  margin: 0 0 10px;
  color: #334155;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.chess-course-wrapper .studio-mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
}

.chess-course-wrapper button.studio-mode-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  padding: 13px 14px;
  color: #334155;
  text-align: left;
  font: inherit;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
}

.chess-course-wrapper button.studio-mode-card:hover {
  border-color: #2171b5;
  background: #f4f9ff;
  box-shadow: 0 3px 10px rgba(33, 113, 181, 0.12);
}

.chess-course-wrapper button.studio-mode-card:active {
  transform: translateY(1px);
}

.chess-course-wrapper button.studio-mode-card:focus-visible {
  outline: 0;
  border-color: #2171b5;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.18);
}

.chess-course-wrapper .studio-mode-card__title,
.chess-course-wrapper .studio-mode-card-title {
  display: block;
  color: #1f2937;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
}

.chess-course-wrapper .studio-mode-card__description,
.chess-course-wrapper .studio-mode-card-description {
  display: block;
  color: #64748b;
  font-size: 12px;
  line-height: 1.4;
}

.chess-course-wrapper .studio-mode-card.is-active,
.chess-course-wrapper button.studio-mode-card[aria-pressed="true"] {
  border-color: #2171b5;
  background: linear-gradient(135deg, #f4f9ff, #ffffff);
  box-shadow: 0 0 0 2px rgba(33, 113, 181, 0.12), 0 4px 12px rgba(33, 113, 181, 0.12);
}

.chess-course-wrapper .studio-mode-card.is-active .studio-mode-card__title,
.chess-course-wrapper .studio-mode-card.is-active .studio-mode-card-title,
.chess-course-wrapper button.studio-mode-card[aria-pressed="true"] .studio-mode-card__title,
.chess-course-wrapper button.studio-mode-card[aria-pressed="true"] .studio-mode-card-title {
  color: #155a94;
}

.chess-course-wrapper #studio-mode-form {
  margin-top: 20px;
}

.chess-course-wrapper #studio-mode-form:empty,
.chess-course-wrapper .studio-dynamic-form:empty {
  display: none;
}

.chess-course-wrapper #studio-form-status {
  min-height: 20px;
  margin-top: 14px;
  color: #475569;
  font-size: 13px;
  line-height: 1.4;
}

.chess-course-wrapper #studio-form-status:empty {
  display: none;
}

.chess-course-wrapper #studio-form-status.is-loading,
.chess-course-wrapper #studio-form-status.loading,
.chess-course-wrapper #studio-form-status[data-state="loading"] {
  color: #8a5a00;
}

.chess-course-wrapper #studio-form-status.is-error,
.chess-course-wrapper #studio-form-status.error,
.chess-course-wrapper #studio-form-status[data-state="error"] {
  color: #b42318;
}

.chess-course-wrapper #studio-form-status.is-success,
.chess-course-wrapper #studio-form-status.success,
.chess-course-wrapper #studio-form-status[data-state="success"] {
  color: #087443;
}

@media (max-width: 767px) {
  .chess-course-wrapper .studio-chess-form .row {
    margin-right: 0;
    margin-left: 0;
  }

  .chess-course-wrapper .studio-chess-form .row > .col-md-4,
.chess-course-wrapper .studio-chess-form .row > .col-md-6,
.chess-course-wrapper .studio-chess-form .row > .col-md-12 {
    flex: 0 0 100%;
    max-width: 100%;
    padding-right: 0;
    padding-left: 0;
  }

  .chess-course-wrapper .studio-mode-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

@media (max-width: 575px) {
  .chess-course-wrapper .studio-chess-form .studio-stepper {
    grid-template-columns: 1fr;
  }

  .chess-course-wrapper .studio-chess-form .studio-settings-header {
    flex-direction: column;
  }

  .chess-course-wrapper .studio-chess-form .form-header,
.chess-course-wrapper .studio-chess-form .form-body,
.chess-course-wrapper .studio-chess-form .form-actions {
    padding-left: 18px;
    padding-right: 18px;
  }

  .chess-course-wrapper .studio-chess-form .form-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .chess-course-wrapper .studio-chess-form .form-actions .btn {
    width: 100%;
  }

  .chess-course-wrapper .studio-category-section {
    margin-top: 18px;
    padding-top: 16px;
  }

  .chess-course-wrapper .studio-mode-grid {
    grid-template-columns: 1fr;
  }

  .chess-course-wrapper .studio-dynamic-form .section,
.chess-course-wrapper #studio-mode-form .section {
    padding: 15px 14px;
  }
}

.chess-course-wrapper {
  max-width: 960px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #2c3e50;
}

.chess-course-wrapper .chess-course-tab-head {
  position: relative;
}

.chess-course-wrapper .chess-course-tab-head .chess-course-modal-close {
  position: absolute;
  top: 0;
  right: 0;
}

.chess-course-wrapper .chess-course-tab-title {
  position: relative;
  margin: 0 0 18px 0;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1f2937;
  text-align: center;
}

.chess-course-wrapper .chess-course-tab-title::after {
  content: '';
  display: block;
  width: 64px;
  height: 3px;
  margin: 8px auto 0;
  border-radius: 2px;
  background: linear-gradient(90deg, #2171b5, #10b981);
}

.chess-course-wrapper .chess-course-tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  padding: 12px;
  background: #f8fafc;
  border-radius: 12px;
  border: 1px solid #e5e9f0;
}

.chess-course-wrapper .course-tab-btn {
  padding: 8px 16px;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  background: #ffffff;
  color: #475569;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chess-course-wrapper .course-tab-btn:hover {
  background: #f1f5f9;
  border-color: #2171b5;
  color: #2171b5;
}

.chess-course-wrapper .course-tab-btn.active {
  background: linear-gradient(135deg, #2171b5, #10b981);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(33, 113, 181, 0.3);
}

.chess-course-wrapper .chess-course-tab-content {
  min-height: 200px;
}

.chess-course-wrapper .course-tab-btn:focus-visible,
.chess-course-wrapper .manual-tab:focus-visible,
.chess-course-wrapper .course-mode-btn:focus-visible,
.chess-course-wrapper .chess-course-modal-close:focus-visible,
.chess-course-wrapper .chess-course-modal-overlay button:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .course-tab-btn.active:focus-visible,
.chess-course-wrapper .course-mode-btn:focus-visible {
  outline-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(33, 113, 181, 0.35);
}

.chess-course-wrapper .course-mode-card:has(.course-mode-btn:focus-visible) {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .course-cat-panel {
  display: none;
}

.chess-course-wrapper .course-cat-panel.active {
  display: block;
  animation: fadeIn 0.2s ease;
}

.chess-course-wrapper .course-mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.chess-course-wrapper .course-mode-card {
  background: #ffffff;
  border: 1px solid #e5e9f0;
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all 0.15s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.chess-course-wrapper .course-mode-card:hover {
  box-shadow: 0 4px 14px rgba(33, 113, 181, 0.15);
  border-color: #2171b5;
  transform: translateY(-2px);
}

.chess-course-wrapper .course-mode-icon {
  font-size: 1.8rem;
}

.chess-course-wrapper .course-mode-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: #1f2937;
}

.chess-course-wrapper .course-mode-desc {
  font-size: 0.82rem;
  color: #475569;
  line-height: 1.4;
}

.chess-course-wrapper .course-mode-btn {
  margin-top: auto;
  padding: 9px 16px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, #2171b5, #1668a8);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 6px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .course-mode-btn:hover {
  background: linear-gradient(135deg, #1b62a0, #115a94);
  box-shadow: 0 4px 12px rgba(33, 113, 181, 0.35);
  transform: translateY(-1px);
}

.chess-course-wrapper .course-mode-btn:active {
  transform: translateY(0);
}

.chess-course-wrapper .chess-course-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.chess-course-wrapper #exportar-modal {
  max-width: 460px;
  height: auto;
  max-height: 85vh;
}

.chess-course-wrapper #exportar-modal .chess-course-modal-body {
  overflow-y: auto;
  padding: 12px;
}

.chess-course-wrapper #exportar-modal .exportar-bloque {
  border: none;
  padding: 0;
  background: transparent;
}

.chess-course-wrapper .chess-course-modal-overlay[hidden] {
  display: none;
}

.chess-course-wrapper .manual-tabs {
  display: flex;
  gap: 4px;
  margin-right: 12px;
}

.chess-course-wrapper .manual-tab {
  padding: 6px 14px;
  border: 1px solid #e5e9f0;
  border-radius: 8px;
  background: #ffffff;
  color: #64748b;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chess-course-wrapper .manual-tab:hover {
  background: #f1f5f9;
  color: #334155;
}

.chess-course-wrapper .manual-tab.active {
  background: #2171b5;
  color: #ffffff;
  border-color: #2171b5;
}

.chess-course-wrapper .chess-course-modal {
  background: #ffffff;
  border-radius: 16px;
  width: 100%;
  max-width: 640px;
  height: 85vh;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.chess-course-wrapper .chess-course-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #e5e9f0;
  position: sticky;
  top: 0;
  background: #ffffff;
  z-index: 1;
  border-radius: 16px 16px 0 0;
  flex-shrink: 0;
}

.chess-course-wrapper .chess-course-modal-header h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: #1f2937;
}

.chess-course-wrapper .chess-course-modal-close {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: #f1f5f9;
  color: #4b5563;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.chess-course-wrapper .chess-course-modal-close:hover {
  background: #e2e8f0;
  color: #1f2937;
}

.chess-course-wrapper .chess-course-modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1 1 auto;
  min-height: 0;
}

.chess-course-wrapper .chess-course-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid #e5e9f0;
  flex-shrink: 0;
}

.chess-course-wrapper .chess-course-modal-footer .btn-cancel {
  padding: 9px 20px;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  background: #ffffff;
  color: #475569;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chess-course-wrapper .chess-course-modal-footer .btn-cancel:hover {
  background: #f1f5f9;
  border-color: #c3ccda;
}

.chess-course-wrapper .chess-course-modal-footer .btn-save {
  padding: 9px 22px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, #2171b5, #1668a8);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 6px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .chess-course-modal-footer .btn-save:hover {
  background: linear-gradient(135deg, #1b62a0, #115a94);
  box-shadow: 0 4px 12px rgba(33, 113, 181, 0.35);
  transform: translateY(-1px);
}

.chess-course-wrapper .manual-body {
  max-height: 80vh;
  overflow-y: auto;
  padding: 16px 18px;
}

.chess-course-wrapper .manual-seccion {
  margin-bottom: 20px;
  padding: 16px 20px;
  border-radius: 10px;
  border: 1px solid #e5e9f0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.chess-course-wrapper .manual-alumno {
  background: #f0fdf4;
  border-left: 4px solid #22c55e;
}

.chess-course-wrapper .manual-pasos {
  margin: 8px 0 0 0;
  padding-left: 22px;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.6;
}

.chess-course-wrapper .manual-pasos li {
  margin-bottom: 6px;
}

.chess-course-wrapper .manual-seccion h4 {
  margin: 0 0 8px 0;
  font-size: 1rem;
  font-weight: 700;
  color: #2171b5;
}

.chess-course-wrapper .manual-seccion p {
  margin: 0;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.5;
}

.chess-course-wrapper .manual-seccion pre {
  background: #f1f5f9;
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  font-size: 0.85rem;
}

.chess-course-wrapper .manual-seccion code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
}

.chess-course-wrapper .manual-tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.chess-course-wrapper .manual-tabla th,
.chess-course-wrapper .manual-tabla td {
  padding: 5px 8px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.chess-course-wrapper .manual-tabla th {
  background: #f8fafc;
  font-weight: 600;
  color: #334155;
}

.chess-course-wrapper .manual-tabla code {
  font-size: 0.8rem;
  background: #f1f5f9;
  padding: 1px 4px;
  border-radius: 3px;
}

.chess-course-wrapper .chess-course-modal-config .course-formulario .section {
  margin-bottom: 20px;
}

.chess-course-wrapper .chess-course-modal-config .course-formulario .section:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .chess-course-modal-config .section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: #1f2937;
}

.chess-course-wrapper .chess-course-modal-config .section-accent {
  flex: 0 0 auto;
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: #2171b5;
}

.chess-course-wrapper .chess-course-modal-config .section-desc,
.chess-course-wrapper .chess-course-modal-config .section-note {
  margin: 0 0 12px;
  font-size: 0.85rem;
  line-height: 1.5;
  color: #5b6b7f;
}

.chess-course-wrapper .chess-course-modal-config .section-subtitle {
  margin: 14px 0 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #334155;
}

.chess-course-wrapper .chess-course-modal-config .row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.chess-course-wrapper .chess-course-modal-config .col-md-4 {
  flex: 1 1 150px;
  min-width: 0;
}

.chess-course-wrapper .chess-course-modal-config .col-md-6 {
  flex: 1 1 220px;
  min-width: 0;
}

.chess-course-wrapper .chess-course-modal-config .form-group {
  display: block;
  margin-bottom: 12px;
}

.chess-course-wrapper .chess-course-modal-config .form-group:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .chess-course-modal-config .form-group label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
}

.chess-course-wrapper .chess-course-modal-config input[type="checkbox"] + label,
.chess-course-wrapper .chess-course-modal-config label input[type="checkbox"] {
  display: inline-block;
  margin: 0;
  font-weight: 400;
}

.chess-course-wrapper .chess-course-modal-config .hr-muted {
  margin: 16px 0 0;
  border: 0;
  border-top: 1px solid #e2e8f0;
}

.chess-course-wrapper .chess-course-modal-config .course-cargando {
  margin: 0;
  padding: 18px 0;
  color: #5b6b7f;
  font-size: 0.9rem;
  text-align: center;
}

.chess-course-wrapper .form-control {
  display: block;
  width: 100%;
  padding: 9px 12px;
  font-size: 0.9rem;
  color: #1f2937;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chess-course-wrapper .form-control:focus {
  border-color: #2171b5;
  outline: 0;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.15);
}

.chess-course-wrapper .form-hint {
  margin: 6px 0 0;
  color: #64748b;
  font-size: 0.8rem;
  line-height: 1.4;
}

@media (max-width: 899px) {
  .chess-course-wrapper .chess-board-holder {
    width: 100%;
  }
}

.chess-course-wrapper .hud-item {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 7px 14px;
  font-size: 1.0rem;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex: 1 1 0;
  min-width: 120px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.chess-course-wrapper .chess-controls {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  margin-bottom: 12px;
}

.chess-course-wrapper .btn-chess {
  border: none;
  border-radius: 8px;
  min-height: 40px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.chess-course-wrapper .btn-chess:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.chess-course-wrapper .btn-hint {
  background: #92400e;
}

.chess-course-wrapper .btn-skip {
  background: #334155;
}

.chess-course-wrapper .btn-start {
  background: linear-gradient(180deg, #047857, #065f46);
  font-size: 1.5rem;
  padding: 14px 40px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

.chess-course-wrapper .grade-status {
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.95rem;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e3a8a;
}

.chess-course-wrapper {
  position: relative;
}

.chess-course-wrapper #game-view {
  display: block;
  position: relative;
}

.chess-course-wrapper #course-tab-view {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  background: #ffffff;
  overflow-y: auto;
  max-height: 100%;
}

.chess-course-wrapper #course-tab-view.hidden {
  display: none;
}

.chess-course-wrapper--panel #game-view {
  display: none;
}

.chess-course-wrapper--panel #course-tab-view {
  position: static;
  max-height: none;
  overflow: visible;
  z-index: auto;
}

.chess-course-wrapper .chess-course-panel-intro {
  margin: -4px 0 18px;
  padding: 10px 14px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 10px;
  color: #14532d;
  font-size: 0.9rem;
  line-height: 1.45;
  text-align: center;
}

.chess-course-wrapper .chess-course-panel-intro[hidden] {
  display: none;
}

@media (max-width: 899px) {
}

@keyframes temporizador-pulso {
  0%, 100% {
    opacity: 1;
  }

  50% {
    opacity: 0.45;
  }
}

@keyframes board-shake {
  0%, 100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-6px);
  }

  40% {
    transform: translateX(6px);
  }

  60% {
    transform: translateX(-4px);
  }

  80% {
    transform: translateX(4px);
  }
}

@keyframes board-glow {
  0% {
    box-shadow: 0 0 0 rgba(16, 185, 129, 0);
  }

  15% {
    box-shadow: 0 0 26px 8px rgba(16, 185, 129, 0.55);
  }

  100% {
    box-shadow: 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes corazon-perdido {
  0%   {
    transform: scale(1.35);
    opacity: 0.6;
  }

  60%  {
    transform: scale(0.9);
    opacity: 1;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes ov-entrar {
  from {
    transform: translateY(-8px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes ov-pulso {
  0% {
    transform: scale(1);
  }

  40% {
    transform: scale(1.02);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.35);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes ov-sacudida {
  0%, 100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-5px);
  }

  40% {
    transform: translateX(5px);
  }

  60% {
    transform: translateX(-3px);
  }

  80% {
    transform: translateX(3px);
  }
}

@keyframes pausa-pulso {
  0%, 100% {
    opacity: 1;
  }

  50% {
    opacity: 0.55;
  }
}

@keyframes foco-latido {
  0%   {
    opacity: 0.15;
    transform: scale(0.94);
  }

  40%  {
    opacity: 0.95;
  }

  100% {
    opacity: 0.15;
    transform: scale(1.02);
  }
}

@keyframes foco-latido-rojo {
  0%   {
    opacity: 0.2;
    transform: scale(0.94);
  }

  40%  {
    opacity: 1;
  }

  100% {
    opacity: 0.2;
    transform: scale(1.04);
  }
}

@keyframes comeback-entra {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
  }

  to   {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes reloj-pulso {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.6;
    transform: scale(1.06);
  }
}

@property --eval-percent {
  syntax: '<percentage>';

  inherits: false;

  initial-value: 50%;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Reglas del producto, movidas verbatim del CSS manual (Task 8) =====
   Selectores con el wrapper delante (reporte §1.3); keyframes y @property
   top-level; medias EN SU SITIO original (reordenarlas cambia la cascada);
   dedup con la cadena de media en la clave. ===== */

.chess-course-wrapper *,
.chess-course-wrapper ::before,
.chess-course-wrapper ::after {
  --tw-border-spacing-x: 0;
  --tw-border-spacing-y: 0;
  --tw-translate-x: 0;
  --tw-translate-y: 0;
  --tw-rotate: 0;
  --tw-skew-x: 0;
  --tw-skew-y: 0;
  --tw-scale-x: 1;
  --tw-scale-y: 1;
  --tw-pan-x: ;
  --tw-pan-y: ;
  --tw-pinch-zoom: ;
  --tw-scroll-snap-strictness: proximity;
  --tw-gradient-from-position: ;
  --tw-gradient-via-position: ;
  --tw-gradient-to-position: ;
  --tw-ordinal: ;
  --tw-slashed-zero: ;
  --tw-numeric-figure: ;
  --tw-numeric-spacing: ;
  --tw-numeric-fraction: ;
  --tw-ring-inset: ;
  --tw-ring-offset-width: 0px;
  --tw-ring-offset-color: #fff;
  --tw-ring-color: rgb(59 130 246 / 0.5);
  --tw-ring-offset-shadow: 0 0 #0000;
  --tw-ring-shadow: 0 0 #0000;
  --tw-shadow: 0 0 #0000;
  --tw-shadow-colored: 0 0 #0000;
  --tw-blur: ;
  --tw-brightness: ;
  --tw-contrast: ;
  --tw-grayscale: ;
  --tw-hue-rotate: ;
  --tw-invert: ;
  --tw-saturate: ;
  --tw-sepia: ;
  --tw-drop-shadow: ;
  --tw-backdrop-blur: ;
  --tw-backdrop-brightness: ;
  --tw-backdrop-contrast: ;
  --tw-backdrop-grayscale: ;
  --tw-backdrop-hue-rotate: ;
  --tw-backdrop-invert: ;
  --tw-backdrop-opacity: ;
  --tw-backdrop-saturate: ;
  --tw-backdrop-sepia: ;
  --tw-contain-size: ;
  --tw-contain-layout: ;
  --tw-contain-paint: ;
  --tw-contain-style: ;
}

.chess-course-wrapper ::backdrop {
  --tw-border-spacing-x: 0;
  --tw-border-spacing-y: 0;
  --tw-translate-x: 0;
  --tw-translate-y: 0;
  --tw-rotate: 0;
  --tw-skew-x: 0;
  --tw-skew-y: 0;
  --tw-scale-x: 1;
  --tw-scale-y: 1;
  --tw-pan-x: ;
  --tw-pan-y: ;
  --tw-pinch-zoom: ;
  --tw-scroll-snap-strictness: proximity;
  --tw-gradient-from-position: ;
  --tw-gradient-via-position: ;
  --tw-gradient-to-position: ;
  --tw-ordinal: ;
  --tw-slashed-zero: ;
  --tw-numeric-figure: ;
  --tw-numeric-spacing: ;
  --tw-numeric-fraction: ;
  --tw-ring-inset: ;
  --tw-ring-offset-width: 0px;
  --tw-ring-offset-color: #fff;
  --tw-ring-color: rgb(59 130 246 / 0.5);
  --tw-ring-offset-shadow: 0 0 #0000;
  --tw-ring-shadow: 0 0 #0000;
  --tw-shadow: 0 0 #0000;
  --tw-shadow-colored: 0 0 #0000;
  --tw-blur: ;
  --tw-brightness: ;
  --tw-contrast: ;
  --tw-grayscale: ;
  --tw-hue-rotate: ;
  --tw-invert: ;
  --tw-saturate: ;
  --tw-sepia: ;
  --tw-drop-shadow: ;
  --tw-backdrop-blur: ;
  --tw-backdrop-brightness: ;
  --tw-backdrop-contrast: ;
  --tw-backdrop-grayscale: ;
  --tw-backdrop-hue-rotate: ;
  --tw-backdrop-invert: ;
  --tw-backdrop-opacity: ;
  --tw-backdrop-saturate: ;
  --tw-backdrop-sepia: ;
  --tw-contain-size: ;
  --tw-contain-layout: ;
  --tw-contain-paint: ;
  --tw-contain-style: ;
}

.chess-course-wrapper,
.chess-course-wrapper *,
.chess-course-wrapper ::before,
.chess-course-wrapper ::after {
  box-sizing: border-box;
  border-width: 0;
  border-style: solid;
  border-color: currentColor;
}

.chess-course-wrapper .tw-fixed {
  position: fixed;
}

.chess-course-wrapper .tw-absolute {
  position: absolute;
}

.chess-course-wrapper .tw-relative {
  position: relative;
}

.chess-course-wrapper .tw-sticky {
  position: sticky;
}

.chess-course-wrapper .tw-inset-0 {
  inset: 0px;
}

.chess-course-wrapper .tw-right-0 {
  right: 0px;
}

.chess-course-wrapper .tw-top-0 {
  top: 0px;
}

.chess-course-wrapper .tw-z-\[1000\] {
  z-index: 1000;
}

.chess-course-wrapper .tw-z-\[1\] {
  z-index: 1;
}

.chess-course-wrapper .tw-m-0 {
  margin: 0px;
}

.chess-course-wrapper .tw-m-\[-4px_0_18px\] {
  margin: -4px 0 18px;
}

.chess-course-wrapper .tw-m-\[0_0_18px\] {
  margin: 0 0 18px;
}

.chess-course-wrapper .tw-m-\[10px_auto_12px\] {
  margin: 10px auto 12px;
}

.chess-course-wrapper .tw-mb-\[10px\] {
  margin-bottom: 10px;
}

.chess-course-wrapper .tw-mb-\[12px\] {
  margin-bottom: 12px;
}

.chess-course-wrapper .tw-mb-\[20px\] {
  margin-bottom: 20px;
}

.chess-course-wrapper .tw-mt-auto {
  margin-top: auto;
}

.chess-course-wrapper .tw-flex {
  display: flex;
}

.chess-course-wrapper .tw-inline-flex {
  display: inline-flex;
}

.chess-course-wrapper .tw-grid {
  display: grid;
}

.chess-course-wrapper .tw-hidden {
  display: none;
}

.chess-course-wrapper .tw-h-\[32px\] {
  height: 32px;
}

.chess-course-wrapper .tw-h-\[36px\] {
  height: 36px;
}

.chess-course-wrapper .tw-h-\[85vh\] {
  height: 85vh;
}

.chess-course-wrapper .tw-max-h-\[85vh\] {
  max-height: 85vh;
}

.chess-course-wrapper .tw-min-h-0 {
  min-height: 0px;
}

.chess-course-wrapper .tw-min-h-\[200px\] {
  min-height: 200px;
}

.chess-course-wrapper .tw-min-h-\[40px\] {
  min-height: 40px;
}

.chess-course-wrapper .tw-w-\[32px\] {
  width: 32px;
}

.chess-course-wrapper .tw-w-full {
  width: 100%;
}

.chess-course-wrapper .tw-min-w-\[120px\] {
  min-width: 120px;
}

.chess-course-wrapper .tw-min-w-\[44px\] {
  min-width: 44px;
}

.chess-course-wrapper .tw-max-w-\[640px\] {
  max-width: 640px;
}

.chess-course-wrapper .tw-flex-\[1_1_0\] {
  flex: 1 1 0;
}

.chess-course-wrapper .tw-flex-\[1_1_auto\] {
  flex: 1 1 auto;
}

.chess-course-wrapper .tw-flex-shrink-0 {
  flex-shrink: 0;
}

.chess-course-wrapper .tw-cursor-pointer {
  cursor: pointer;
}

.chess-course-wrapper .tw-grid-cols-\[repeat\(auto-fill\,
.chess-course-wrapper minmax\(260px\,
.chess-course-wrapper 1fr\)\)\] {
  grid-template-columns: repeat(auto-fill,minmax(260px,1fr));
}

.chess-course-wrapper .tw-flex-col {
  flex-direction: column;
}

.chess-course-wrapper .tw-flex-wrap {
  flex-wrap: wrap;
}

.chess-course-wrapper .tw-items-center {
  align-items: center;
}

.chess-course-wrapper .tw-items-stretch {
  align-items: stretch;
}

.chess-course-wrapper .tw-justify-end {
  justify-content: flex-end;
}

.chess-course-wrapper .tw-justify-center {
  justify-content: center;
}

.chess-course-wrapper .tw-justify-between {
  justify-content: space-between;
}

.chess-course-wrapper .tw-gap-\[10px\] {
  gap: 10px;
}

.chess-course-wrapper .tw-gap-\[14px\] {
  gap: 14px;
}

.chess-course-wrapper .tw-gap-\[2px\] {
  gap: 2px;
}

.chess-course-wrapper .tw-gap-\[5px\] {
  gap: 5px;
}

.chess-course-wrapper .tw-gap-\[6px\] {
  gap: 6px;
}

.chess-course-wrapper .tw-gap-\[8px\] {
  gap: 8px;
}

.chess-course-wrapper .tw-overflow-hidden {
  overflow: hidden;
}

.chess-course-wrapper .tw-overflow-y-auto {
  overflow-y: auto;
}

.chess-course-wrapper .tw-rounded-\[10px\] {
  border-radius: 10px;
}

.chess-course-wrapper .tw-rounded-\[12px\] {
  border-radius: 12px;
}

.chess-course-wrapper .tw-rounded-\[16px\] {
  border-radius: 16px;
}

.chess-course-wrapper .tw-rounded-\[8px\] {
  border-radius: 8px;
}

.chess-course-wrapper .tw-rounded-t-\[16px\] {
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
}

.chess-course-wrapper .tw-border {
  border-width: 1px;
}

.chess-course-wrapper .tw-border-b {
  border-bottom-width: 1px;
}

.chess-course-wrapper .tw-border-t {
  border-top-width: 1px;
}

.chess-course-wrapper .tw-border-\[\#bbf7d0\] {
  --tw-border-opacity: 1;
  border-color: rgb(187 247 208 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#bfdbfe\] {
  --tw-border-opacity: 1;
  border-color: rgb(191 219 254 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#d7dde8\] {
  --tw-border-opacity: 1;
  border-color: rgb(215 221 232 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#e5e7eb\] {
  --tw-border-opacity: 1;
  border-color: rgb(229 231 235 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-\[\#e5e9f0\] {
  --tw-border-opacity: 1;
  border-color: rgb(229 233 240 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-b-\[\#e5e9f0\] {
  --tw-border-opacity: 1;
  border-bottom-color: rgb(229 233 240 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-border-t-\[\#e5e9f0\] {
  --tw-border-opacity: 1;
  border-top-color: rgb(229 233 240 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#334155\] {
  --tw-bg-opacity: 1;
  background-color: rgb(51 65 85 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#92400e\] {
  --tw-bg-opacity: 1;
  background-color: rgb(146 64 14 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#eff6ff\] {
  --tw-bg-opacity: 1;
  background-color: rgb(239 246 255 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#f0fdf4\] {
  --tw-bg-opacity: 1;
  background-color: rgb(240 253 244 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#f1f5f9\] {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[\#f8fafc\] {
  --tw-bg-opacity: 1;
  background-color: rgb(248 250 252 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .tw-bg-\[rgba\(15\,
.chess-course-wrapper 23\,
.chess-course-wrapper 42\,
.chess-course-wrapper 0\.55\)\] {
  background-color: rgba(15,23,42,0.55);
}

.chess-course-wrapper .tw-bg-\[linear-gradient\(135deg\,
.chess-course-wrapper \#2171b5\,
.chess-course-wrapper \#1668a8\)\] {
  background-image: linear-gradient(135deg,#2171b5,#1668a8);
}

.chess-course-wrapper .tw-p-\[12px\] {
  padding: 12px;
}

.chess-course-wrapper .tw-p-\[18px\] {
  padding: 18px;
}

.chess-course-wrapper .tw-p-\[20px\] {
  padding: 20px;
}

.chess-course-wrapper .tw-p-\[24px\] {
  padding: 24px;
}

.chess-course-wrapper .tw-px-\[12px\] {
  padding-left: 12px;
  padding-right: 12px;
}

.chess-course-wrapper .tw-px-\[14px\] {
  padding-left: 14px;
  padding-right: 14px;
}

.chess-course-wrapper .tw-px-\[16px\] {
  padding-left: 16px;
  padding-right: 16px;
}

.chess-course-wrapper .tw-px-\[20px\] {
  padding-left: 20px;
  padding-right: 20px;
}

.chess-course-wrapper .tw-px-\[22px\] {
  padding-left: 22px;
  padding-right: 22px;
}

.chess-course-wrapper .tw-px-\[24px\] {
  padding-left: 24px;
  padding-right: 24px;
}

.chess-course-wrapper .tw-py-\[10px\] {
  padding-top: 10px;
  padding-bottom: 10px;
}

.chess-course-wrapper .tw-py-\[16px\] {
  padding-top: 16px;
  padding-bottom: 16px;
}

.chess-course-wrapper .tw-py-\[18px\] {
  padding-top: 18px;
  padding-bottom: 18px;
}

.chess-course-wrapper .tw-py-\[20px\] {
  padding-top: 20px;
  padding-bottom: 20px;
}

.chess-course-wrapper .tw-py-\[7px\] {
  padding-top: 7px;
  padding-bottom: 7px;
}

.chess-course-wrapper .tw-py-\[8px\] {
  padding-top: 8px;
  padding-bottom: 8px;
}

.chess-course-wrapper .tw-py-\[9px\] {
  padding-top: 9px;
  padding-bottom: 9px;
}

.chess-course-wrapper .tw-text-center {
  text-align: center;
}

.chess-course-wrapper .tw-text-\[0\.82rem\] {
  font-size: 0.82rem;
}

.chess-course-wrapper .tw-text-\[0\.85rem\] {
  font-size: 0.85rem;
}

.chess-course-wrapper .tw-text-\[0\.95rem\] {
  font-size: 0.95rem;
}

.chess-course-wrapper .tw-text-\[0\.9rem\] {
  font-size: 0.9rem;
}

.chess-course-wrapper .tw-text-\[1\.05rem\] {
  font-size: 1.05rem;
}

.chess-course-wrapper .tw-text-\[1\.15rem\] {
  font-size: 1.15rem;
}

.chess-course-wrapper .tw-text-\[1\.4rem\] {
  font-size: 1.4rem;
}

.chess-course-wrapper .tw-text-\[1\.8rem\] {
  font-size: 1.8rem;
}

.chess-course-wrapper .tw-text-\[1rem\] {
  font-size: 1rem;
}

.chess-course-wrapper .tw-font-bold {
  font-weight: 700;
}

.chess-course-wrapper .tw-font-semibold {
  font-weight: 600;
}

.chess-course-wrapper .tw-leading-\[1\.45\] {
  line-height: 1.45;
}

.chess-course-wrapper .tw-leading-\[1\.4\] {
  line-height: 1.4;
}

.chess-course-wrapper .tw-leading-\[1\] {
  line-height: 1;
}

.chess-course-wrapper .tw-tracking-\[-0\.01em\] {
  letter-spacing: -0.01em;
}

.chess-course-wrapper .tw-text-\[\#111827\] {
  --tw-text-opacity: 1;
  color: rgb(17 24 39 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#14532d\] {
  --tw-text-opacity: 1;
  color: rgb(20 83 45 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#1e3a8a\] {
  --tw-text-opacity: 1;
  color: rgb(30 58 138 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#1f2937\] {
  --tw-text-opacity: 1;
  color: rgb(31 41 55 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#374151\] {
  --tw-text-opacity: 1;
  color: rgb(55 65 81 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#475569\] {
  --tw-text-opacity: 1;
  color: rgb(71 85 105 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#4b5563\] {
  --tw-text-opacity: 1;
  color: rgb(75 85 99 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#5b6b7f\] {
  --tw-text-opacity: 1;
  color: rgb(91 107 127 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-text-\[\#92400e\] {
  --tw-text-opacity: 1;
  color: rgb(146 64 14 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .tw-shadow-\[0_1px_2px_rgba\(15\,
.chess-course-wrapper 23\,
.chess-course-wrapper 42\,
.chess-course-wrapper 0\.06\)\] {
  --tw-shadow: 0 1px 2px rgba(15,23,42,0.06);
  --tw-shadow-colored: 0 1px 2px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_1px_2px_rgba\(15\,
.chess-course-wrapper 23\,
.chess-course-wrapper 42\,
.chess-course-wrapper 0\.08\)\] {
  --tw-shadow: 0 1px 2px rgba(15,23,42,0.08);
  --tw-shadow-colored: 0 1px 2px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_1px_3px_rgba\(0\,
.chess-course-wrapper 0\,
.chess-course-wrapper 0\,
.chess-course-wrapper 0\.04\)\] {
  --tw-shadow: 0 1px 3px rgba(0,0,0,0.04);
  --tw-shadow-colored: 0 1px 3px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_20px_60px_rgba\(0\,
.chess-course-wrapper 0\,
.chess-course-wrapper 0\,
.chess-course-wrapper 0\.3\)\] {
  --tw-shadow: 0 20px 60px rgba(0,0,0,0.3);
  --tw-shadow-colored: 0 20px 60px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-shadow-\[0_2px_6px_rgba\(33\,
.chess-course-wrapper 113\,
.chess-course-wrapper 181\,
.chess-course-wrapper 0\.25\)\] {
  --tw-shadow: 0 2px 6px rgba(33,113,181,0.25);
  --tw-shadow-colored: 0 2px 6px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .tw-duration-150 {
  transition-duration: 150ms;
}

.chess-course-wrapper .tw-ease-\[ease\] {
  transition-timing-function: ease;
}

.chess-course-wrapper .\[transition\:\.\.\.\] {
  transition: ...;
}

.chess-course-wrapper .chess-v6-wrapper {
  max-width: 640px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #2c3e50;
}

.chess-course-wrapper .temporizador-alerta {
  color: #dc2626 !important;
  animation: temporizador-pulso 1s ease infinite;
}

.chess-course-wrapper .chess-v6-wrapper h2.chess-v6-title {
  position: relative;
  margin: 0 0 14px 0;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1f2937;
}

.chess-course-wrapper .chess-v6-wrapper h2.chess-v6-title::after {
  content: '';
  display: block;
  width: 64px;
  height: 3px;
  margin-top: 8px;
  border-radius: 2px;
  background: linear-gradient(90deg, #2171b5, #10b981);
}

.chess-course-wrapper .chess-v6-layout {
  display: flex;
  flex-direction: column;
}

.chess-course-wrapper .col-izq,
.chess-course-wrapper .col-der {
  display: contents;
}

.chess-course-wrapper .chess-v6-layout .hud-panel {
  order: 1;
}

.chess-course-wrapper .chess-v6-layout .status-box {
  order: 2;
}

.chess-course-wrapper .chess-v6-layout .chess-board-holder {
  order: 3;
}

.chess-course-wrapper .chess-v6-layout .board-tools {
  order: 3;
}

.chess-course-wrapper .chess-v6-layout .chess-controls {
  order: 4;
}

.chess-course-wrapper .chess-v6-layout .puzzle-details {
  order: 5;
}

@media (max-width: 899px) and (min-height: 461px) {
  .chess-course-wrapper .chess-controls .btn-chess {
    min-height: 44px;
  }
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-wrapper {
    max-width: 880px;
  }

  .chess-course-wrapper .chess-v6-layout {
    display: grid;
    grid-template-columns: 480px 1fr;
    gap: 14px;
    align-items: stretch;
  }

  .chess-course-wrapper .col-izq {
    display: block;
    min-width: 0;
  }

  .chess-course-wrapper .col-der {
    display: flex;
    flex-direction: column;
    min-width: 0;
  }

  .chess-course-wrapper .col-der .hud-panel {
    flex-direction: column;
    align-items: stretch;
  }

  .chess-course-wrapper .col-der .status-box {
    margin-bottom: 0;
  }

  .chess-course-wrapper .col-der .chess-controls {
    flex-direction: column;
    align-items: stretch;
    margin-top: auto;
  }
}

.chess-course-wrapper .col-centro {
  display: none;
  min-width: 0;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-centro {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje #lesson-panel {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .status-box {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .chess-board-holder {
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .board-tools {
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .chess-controls {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .puzzle-details {
    order: 6;
  }
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-wrapper.aprendizaje {
    max-width: 1150px;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje {
    grid-template-columns: minmax(0, 1fr) 400px minmax(0, 230px);
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-centro {
    display: block;
    min-width: 0;
    grid-row: 1;
    grid-column: 1;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-der {
    grid-row: 1;
    grid-column: 3;
  }

  .chess-course-wrapper .chess-v6-layout.aprendizaje .col-der .hud-item {
    min-width: 0;
  }
}

.chess-course-wrapper .hud-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.chess-course-wrapper #hud-progress {
  font-size: 1.05rem;
}

.chess-course-wrapper #hud-pistas {
  color: #92400e;
  font-size: 0.95rem;
}

.chess-course-wrapper #hud-vidas {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.chess-course-wrapper .hud-item strong {
  color: #111827;
}

.chess-course-wrapper .hud-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #f8fafc;
  flex: 0 0 auto;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(1) .hud-icon {
  background: #dbeafe;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(2) .hud-icon {
  background: #fef3c7;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(3) .hud-icon {
  background: #d1fae5;
}

.chess-course-wrapper .hud-panel .hud-item:nth-child(4) .hud-icon {
  background: #ffe4e6;
}

.chess-course-wrapper .status-box {
  border-radius: 8px;
  padding: 7px 14px;
  margin-bottom: 12px;
  font-size: 1.0rem;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  color: #374151;
  text-align: center;
  min-height: 45px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chess-course-wrapper .turno-badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  font-weight: 700;
  border: 1px solid #94a3b8;
  line-height: 1.1;
  vertical-align: middle;
  box-sizing: border-box;
}

.chess-course-wrapper .turno-badge.Blancas {
  background: #ffffff;
  color: #1f2937;
  border-color: #cbd5e1;
}

.chess-course-wrapper .turno-badge.Negras {
  background: #1f2937;
  color: #ffffff;
}

.chess-course-wrapper .casilla-destino {
  display: inline-block;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: 2px;
  padding: 0 10px;
  margin: 0 4px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  color: #ffffff;
  border: 1px solid #1e40af;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
  line-height: 1.4;
  vertical-align: middle;
}

.chess-course-wrapper .status-box.loading {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}

.chess-course-wrapper .status-box.success {
  background: #d1fae5;
  border-color: #a7f3d0;
  color: #065f46;
}

.chess-course-wrapper .status-box.error {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.chess-course-wrapper .chess-board-holder {
  position: relative;
  width: 480px;
  max-width: 100%;
  margin: 0 auto 12px;
  border-radius: 6px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.12), 0 1px 3px rgba(15, 23, 42, 0.08);
}

.chess-course-wrapper .chess-v6-board {
  width: 100%;
  margin: 0;
  border-radius: 6px;
  overflow: hidden;
}

.chess-course-wrapper .chess-board-holder.board-turno::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 6px;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.4), 0 0 18px 2px rgba(16, 185, 129, 0.25);
  pointer-events: none;
  z-index: 5;
}

.chess-course-wrapper .board-tools {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 10px auto 12px;
}

.chess-course-wrapper .btn-tool {
  height: 36px;
  min-width: 44px;
  padding: 0 12px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #ffffff;
  color: #374151;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  transition: background-color 0.15s ease, transform 0.12s ease;
}

.chess-course-wrapper .btn-tool:hover:not(:disabled) {
  background: #f1f5f9;
  transform: translateY(-1px);
}

.chess-course-wrapper .btn-tool:active:not(:disabled) {
  transform: translateY(0);
}

.chess-course-wrapper .btn-tool:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.chess-course-wrapper .btn-tool:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .start-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.4);
  border-radius: 6px;
  z-index: 10;
}

.chess-course-wrapper button.btn-start {
  background: linear-gradient(180deg, #047857, #065f46);
  font-size: 1.5rem;
  padding: 14px 40px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

.chess-course-wrapper .btn-start:hover:not(:disabled) {
  filter: brightness(1.06);
}

.chess-course-wrapper .board-shake {
  animation: board-shake 0.4s ease;
}

.chess-course-wrapper .board-glow {
  animation: board-glow 0.7s ease;
}

.chess-course-wrapper .btn-chess {
  border: none;
  border-radius: 8px;
  min-height: 40px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
  transition: background-color 0.15s ease, opacity 0.15s ease, transform 0.12s ease, box-shadow 0.12s ease;
}

.chess-course-wrapper .btn-chess:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(15, 23, 42, 0.18);
}

.chess-course-wrapper .btn-chess:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12);
  filter: brightness(0.92);
}

.chess-course-wrapper .btn-chess:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .btn-start:focus-visible {
  outline-color: #ffffff;
}

.chess-course-wrapper .btn-hint:hover:not(:disabled) {
  background: #78350f;
}

.chess-course-wrapper .btn-skip:hover:not(:disabled) {
  background: #1e293b;
}

.chess-course-wrapper .puzzle-details {
  font-size: 0.78rem;
  color: #475569;
  margin-bottom: 12px;
}

.chess-course-wrapper .btn-icon {
  font-size: 1.05rem;
  line-height: 1;
}

.chess-course-wrapper .studio-chess-form {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

.chess-course-wrapper .studio-chess-form .form-group {
  margin-bottom: 14px;
}

.chess-course-wrapper .studio-chess-form label {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: #374151;
}

.chess-course-wrapper .studio-chess-form .form-control {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 0.9rem;
  background: #fff;
}

.chess-course-wrapper .studio-chess-form .row {
  display: flex;
  gap: 16px;
}

.chess-course-wrapper .studio-chess-form .col-md-6,
.chess-course-wrapper .studio-chess-form .col-md-4 {
  flex: 1;
  min-width: 0;
}

.chess-course-wrapper .studio-chess-form .form-actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
}

.chess-course-wrapper .studio-chess-form h4 {
  margin: 0 0 12px 0;
}

.cm-chessboard.chesslabs .board .square.white {
  fill: #eef5ff;
}

.cm-chessboard.chesslabs .board .square.black {
  fill: #2171b5;
}

.cm-chessboard.chesslabs .board .border {
  fill: #2171b5;
  stroke: none;
}

.cm-chessboard.chesslabs.border-type-none .board .border {
  stroke: #2171b5;
  stroke-width: 0;
  fill: #2171b5;
}

.cm-chessboard.chesslabs.border-type-thin .board .border {
  stroke: #2171b5;
  stroke-width: 0.7%;
  fill: #2171b5;
}

.cm-chessboard.chesslabs.border-type-frame .board .border {
  fill: #eef5ff;
  stroke: none;
}

.cm-chessboard.chesslabs.border-type-frame .board .border-inner {
  fill: #2171b5;
  stroke: #2171b5;
  stroke-width: 0.7%;
}

.cm-chessboard.chesslabs .coordinates .coordinate.black {
  fill: #eef5ff;
}

.cm-chessboard.chesslabs .coordinates .coordinate.white {
  fill: #014bb8;
}

.chess-course-wrapper .hud-item #hud-vidas {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.chess-course-wrapper .vida-llena {
  color: #ff4d6d;
}

.chess-course-wrapper .vida-vacia {
  color: #e2e8f0;
  animation: corazon-perdido 0.4s ease;
}

.chess-course-wrapper .vida-llena,
.chess-course-wrapper .vida-vacia {
  font-size: 1.15rem;
  line-height: 1;
}

.cm-chessboard .markers .marker.marker-frame-primary {
  stroke: #ffae00 !important;
  stroke-width: 2.4px !important;
  opacity: 0.85 !important;
}

.cm-chessboard .markers .marker.marker-circle-primary {
  stroke: #ffae00 !important;
  stroke-width: 4px !important;
  opacity: 0.9 !important;
}

.cm-chessboard .arrow-info .arrow-head {
  fill: #ffae00 !important;
  fill-rule: nonzero;
}

.cm-chessboard .arrow-info .arrow-line {
  stroke: #ffae00 !important;
  stroke-linecap: round;
  opacity: 0.75 !important;
}

.cm-chessboard .arrow-secondary .arrow-head {
  fill: blue !important;
  fill-rule: nonzero;
  opacity: 0.85 !important;
}

.cm-chessboard .arrow-secondary .arrow-line {
  stroke: blue !important;
  stroke-linecap: round;
  opacity: 0.55 !important;
}

.cm-chessboard .chesslabs-labels {
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.cm-chessboard .chesslabs-labels text {
  font-family: inherit;
  font-weight: 700;
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 3;
  paint-order: stroke fill;
}

@media (max-height: 460px) and (orientation: landscape) {
  .chess-course-wrapper .chess-v6-wrapper h2.chess-v6-title {
    margin: 0 0 6px 0;
    font-size: 1.0rem;
  }

  .chess-course-wrapper .hud-panel {
    gap: 6px;
    margin-bottom: 6px;
  }

  .chess-course-wrapper .hud-item {
    padding: 4px 8px;
    font-size: 0.85rem;
    min-width: 88px;
  }

  .chess-course-wrapper .status-box {
    padding: 3px 10px;
    margin-bottom: 6px;
    font-size: 0.85rem;
    min-height: 34px;
  }

  .chess-course-wrapper .chess-v6-board-actions {
    margin-top: 6px;
    gap: 6px;
  }
}

.chess-course-wrapper .task-overlay {
  position: absolute;
  z-index: 8;
  width: min(64%, 330px);
  border-radius: 10px;
  background: rgba(255, 250, 240, 0.52);
  border: 1px solid rgba(215, 202, 165, 0.85);
  border-top: 4px solid #3b82f6;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.16);
  padding: 6px 12px 8px;
  font-size: 0.92rem;
  line-height: 1.3;
  color: #292419;
  pointer-events: none;
  transition: top 0.18s ease, bottom 0.18s ease, left 0.18s ease, right 0.18s ease;
}

.chess-course-wrapper .task-overlay.ov-arriba {
  top: 8px;
  bottom: auto;
}

.chess-course-wrapper .task-overlay.ov-abajo {
  top: auto;
  bottom: 8px;
  border-top-width: 1px;
  border-bottom: 4px solid #3b82f6;
}

.chess-course-wrapper .task-overlay.ov-derecha {
  right: 8px;
  left: auto;
}

.chess-course-wrapper .task-overlay.ov-izquierda {
  left: 8px;
  right: auto;
}

.chess-course-wrapper .task-overlay.ov-abajo.tipo-identificar {
  border-bottom-color: #3b82f6;
}

.chess-course-wrapper .task-overlay.ov-abajo.tipo-mover {
  border-bottom-color: #059669;
}

.chess-course-wrapper .task-overlay.ov-abajo.tipo-respuesta {
  border-bottom-color: #d97706;
}

.chess-course-wrapper .task-overlay-boton {
  position: absolute;
  z-index: 9;
  width: 30px;
  height: 30px;
  min-width: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 250, 240, 0.6);
  color: #4a3a12;
  font-size: 1.0rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  transition: transform 0.12s ease, background-color 0.12s ease;
}

.chess-course-wrapper .task-overlay-boton:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.9);
}

.chess-course-wrapper .task-overlay-boton.ov-arriba {
  top: 8px;
}

.chess-course-wrapper .task-overlay-boton.ov-abajo {
  bottom: 8px;
}

.chess-course-wrapper .task-overlay-boton.ov-derecha {
  right: 8px;
}

.chess-course-wrapper .task-overlay-boton.ov-izquierda {
  left: 8px;
}

.chess-course-wrapper .task-overlay .ov-cab {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.chess-course-wrapper .task-overlay .ov-contador {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #8a722f;
}

.chess-course-wrapper .task-overlay .ov-cerrar {
  border: none;
  background: transparent;
  color: #475569;
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 2px 5px;
  border-radius: 4px;
  pointer-events: auto;
}

.chess-course-wrapper .task-overlay .ov-cerrar:hover {
  color: #475569;
  background: #f1f5f9;
}

.chess-course-wrapper .task-overlay .ov-cuerpo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.chess-course-wrapper .task-overlay .ov-icono {
  font-size: 1.1rem;
  line-height: 1.2;
}

.chess-course-wrapper .task-overlay .ov-instru {
  margin: 0;
  flex: 1;
  font-weight: 500;
}

.chess-course-wrapper .task-overlay .ov-destino {
  display: inline-block;
  font-size: 1.0rem;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 1px 9px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  color: #ffffff;
  border: 1px solid #1e40af;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
  white-space: nowrap;
  flex-shrink: 0;
}

.chess-course-wrapper .task-overlay .ov-destino.d-mover {
  background: linear-gradient(135deg, #059669, #065f46);
  border-color: #065f46;
  box-shadow: 0 2px 6px rgba(5, 150, 105, 0.4);
}

.chess-course-wrapper .task-overlay .ov-destino.d-fila {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-color: #b45309;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-caballo {
  background: linear-gradient(135deg, #7c3aed, #5b21b6);
  border-color: #5b21b6;
  box-shadow: 0 2px 6px rgba(124, 58, 237, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-rey {
  background: linear-gradient(135deg, #d97706, #b45309);
  border-color: #b45309;
  box-shadow: 0 2px 6px rgba(217, 119, 6, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-pieza {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  border-color: #1e3a8a;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.45);
}

.chess-course-wrapper .task-overlay .ov-destino.d-jaque {
  background: linear-gradient(135deg, #b91c1c, #991b1b);
  border-color: #7f1d1d;
  box-shadow: 0 2px 6px rgba(185, 28, 28, 0.45);
}

.chess-course-wrapper .task-overlay .ov-respuesta {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed #e2d9ba;
}

.chess-course-wrapper .task-overlay .ov-pregunta {
  margin: 0;
  flex: 1;
  font-weight: 600;
}

.chess-course-wrapper .task-overlay .ov-respuesta .btn-lp {
  font-size: 1rem;
  padding: 6px 18px;
}

.chess-course-wrapper .task-overlay .ov-si {
  background: #047857;
  border-color: #047857;
  color: #fff;
  font-weight: 700;
}

.chess-course-wrapper .task-overlay .ov-no {
  background: #b91c1c;
  border-color: #b91c1c;
  color: #fff;
  font-weight: 700;
}

.chess-course-wrapper .task-overlay .ov-nota {
  margin-top: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  min-height: 0;
}

.chess-course-wrapper .task-overlay .ov-nota.nota-exito {
  color: #065f46;
}

.chess-course-wrapper .task-overlay .ov-nota.nota-error {
  color: #991b1b;
}

.chess-course-wrapper .task-overlay.ov-entra {
  animation: ov-entrar 0.25s ease;
}

.chess-course-wrapper .task-overlay.ov-exito {
  animation: ov-pulso 0.6s ease;
}

.chess-course-wrapper .task-overlay.ov-error {
  animation: ov-sacudida 0.4s ease;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .task-overlay {
    left: 4px;
    right: 4px;
    top: 4px;
    padding: 6px 8px 8px;
    font-size: 0.85rem;
  }

  .chess-course-wrapper .task-overlay .ov-destino {
    font-size: 0.85rem;
    padding: 1px 7px;
  }

  .chess-course-wrapper .task-overlay .ov-respuesta .btn-lp {
    font-size: 0.9rem;
    padding: 5px 14px;
  }
}

.chess-course-wrapper .chesslabs-xray {
  pointer-events: none;
}

.cm-chessboard.xray-piezas-ocultas g.pieces g[data-piece] {
  visibility: hidden !important;
}

.cm-chessboard.xray-piezas-solo_reyes g.pieces g[data-piece][data-xray-oculta] {
  visibility: hidden !important;
}

.chess-course-wrapper .chesslabs-xray rect.xray-amenaza {
  fill: #dc2626;
}

.chess-course-wrapper .chesslabs-xray rect.xray-doble {
  fill: #991b1b;
}

.chess-course-wrapper .chesslabs-xray rect.xray-propio {
  fill: #2563eb;
}

.chess-course-wrapper .chesslabs-xray rect.xray-colgada {
  fill: none;
  stroke: #dc2626;
  stroke-width: 2.5;
}

.chess-course-wrapper .chesslabs-xray rect.xray-jaque {
  fill: #facc15;
}

.chess-course-wrapper .chesslabs-xray circle.xray-simbolo {
  stroke-width: 1.6;
}

.chess-course-wrapper .chesslabs-xray circle.xray-sim-b {
  fill: #ffffff;
  stroke: #5f5955;
}

.chess-course-wrapper .chesslabs-xray circle.xray-sim-n {
  fill: #5f5955;
  stroke: #9a948f;
}

.chess-course-wrapper .chesslabs-xray text.xray-glifo {
  font-size: 18px;
  text-anchor: middle;
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', serif;
  fill: #1f2937;
  paint-order: stroke;
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 2.5px;
  stroke-linejoin: round;
}

.chess-course-wrapper .chesslabs-xray text.xray-glifo-n {
  fill: #f3f4f6;
  stroke: rgba(31, 41, 55, 0.85);
}

.cm-chessboard.pausa-activa {
  cursor: progress;
}

.cm-chessboard.pausa-activa .pieces-layer {
  opacity: 0.55;
  transition: opacity 0.2s ease;
}

.cm-chessboard .pieces-layer {
  transition: opacity 0.2s ease;
}

.chess-course-wrapper .hud-pistas.pausa-cuenta {
  color: #b91c1c;
  font-weight: 700;
  animation: pausa-pulso 1s ease-in-out infinite;
}

.chess-course-wrapper .chesslabs-knight {
  pointer-events: none;
}

.chess-course-wrapper .chesslabs-knight circle.chesslabs-knight-paso {
  fill: rgba(37, 99, 235, 0.18);
  stroke: rgba(37, 99, 235, 0.75);
  stroke-width: 1.4;
}

.chess-course-wrapper .chesslabs-knight circle.chesslabs-knight-paso.final {
  fill: rgba(16, 185, 129, 0.28);
  stroke: rgba(5, 150, 105, 0.95);
  stroke-width: 2;
}

.chess-course-wrapper .chesslabs-knight text.chesslabs-knight-txt {
  fill: #1e3a8a;
  paint-order: stroke;
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 2px;
  stroke-linejoin: round;
  font-family: 'Segoe UI', system-ui, sans-serif;
}

.chess-course-wrapper .chesslabs-knight text.chesslabs-knight-txt.final {
  fill: #065f46;
}

.cm-chessboard.ciego-blancas,
.cm-chessboard.ciego-negras,
.cm-chessboard.ciego-ambas {
  --ciego-opacidad: 0.28;
}

.cm-chessboard.ciego-blancas g.pieces g[data-piece][data-ciego],
.cm-chessboard.ciego-negras g.pieces g[data-piece][data-ciego],
.cm-chessboard.ciego-ambas g.pieces g[data-piece][data-ciego] {
  opacity: var(--ciego-opacidad, 0.28);
}

.cm-chessboard.ciego-blancas g.pieces g[data-piece][data-ciego-revelada],
.cm-chessboard.ciego-negras g.pieces g[data-piece][data-ciego-revelada],
.cm-chessboard.ciego-ambas g.pieces g[data-piece][data-ciego-revelada] {
  opacity: 1;
}

.chess-course-wrapper .chesslabs-foco {
  pointer-events: none;
}

.chess-course-wrapper .foco-halo {
  fill: none;
  stroke-width: 3;
  stroke-linejoin: round;
  animation: foco-latido 0.9s ease-out 2;
}

.chess-course-wrapper .foco-rect {
  fill: none;
  stroke-width: 4;
  stroke-linejoin: round;
  animation: foco-latido 0.9s ease-out 2;
}

.chess-course-wrapper .foco-rect-relleno {
  fill-opacity: 0.16;
}

.chess-course-wrapper .foco-rect.foco-rojo {
  stroke: rgba(220, 38, 38, 0.95);
  fill: rgba(220, 38, 38, 0.12);
}

.chess-course-wrapper .foco-rect.foco-azul {
  stroke: rgba(37, 99, 235, 0.95);
  fill: rgba(37, 99, 235, 0.12);
}

.chess-course-wrapper .foco-rect.foco-verde {
  stroke: rgba(5, 150, 105, 0.95);
  fill: rgba(5, 150, 105, 0.12);
}

.chess-course-wrapper .foco-rect.foco-ambar {
  stroke: rgba(217, 119, 6, 0.95);
  fill: rgba(217, 119, 6, 0.14);
}

.chess-course-wrapper .foco-rect.foco-rojo {
  animation-name: foco-latido-rojo;
}

.chess-course-wrapper .foco-halo.foco-rojo {
  stroke: rgba(220, 38, 38, 0.95);
  fill: rgba(220, 38, 38, 0.16);
}

.chess-course-wrapper .foco-halo.foco-azul {
  stroke: rgba(37, 99, 235, 0.95);
  fill: rgba(37, 99, 235, 0.16);
}

.chess-course-wrapper .foco-halo.foco-verde {
  stroke: rgba(5, 150, 105, 0.95);
  fill: rgba(5, 150, 105, 0.16);
}

.chess-course-wrapper .foco-halo.foco-ambar {
  stroke: rgba(217, 119, 6, 0.95);
  fill: rgba(217, 119, 6, 0.18);
}

.chess-course-wrapper .foco-halo.foco-rojo {
  animation-name: foco-latido-rojo;
}

.chess-course-wrapper .chesslabs-foco .foco-halo {
  transform-origin: center;
  transform-box: fill-box;
}

@media (prefers-reduced-motion: reduce) {
  .chess-course-wrapper .foco-halo {
    animation: none;
    opacity: 0.9;
  }
}

.chess-course-wrapper .comeback-panel {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  z-index: 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255, 251, 235, 0.96);
  border: 1px solid #fcd34d;
  border-bottom: 4px solid #d97706;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.22);
  max-width: 90%;
  animation: comeback-entra 0.28s ease;
}

.chess-course-wrapper .comeback-pregunta {
  margin: 0;
  font-size: 0.92rem;
  color: #292419;
  text-align: center;
}

.chess-course-wrapper .comeback-botones {
  display: flex;
  gap: 10px;
}

.chess-course-wrapper .comeback-botones .btn-lp {
  font-size: 0.95rem;
  padding: 6px 20px;
}

.chess-course-wrapper .comeback-si {
  background: #047857;
  border-color: #065f46;
  color: #fff;
}

.chess-course-wrapper .comeback-no {
  background: #b91c1c;
  border-color: #7f1d1d;
  color: #fff;
}

.chess-course-wrapper .hud-timer.reloj-jugada {
  color: #0f172a;
  font-weight: 700;
}

.chess-course-wrapper .hud-timer.reloj-jugada.temporizador-alerta {
  color: #b91c1c;
  animation: reloj-pulso 1s ease-in-out infinite;
}

.chess-course-wrapper .eval-panel {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  z-index: 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(240, 246, 255, 0.96);
  border: 1px solid #bfdbfe;
  border-bottom: 4px solid #2563eb;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.2);
  max-width: 92%;
}

.chess-course-wrapper .eval-botones {
  display: flex;
  gap: 8px;
}

.chess-course-wrapper .eval-botones .btn-lp {
  font-size: 0.95rem;
  padding: 7px 18px;
}

.chess-course-wrapper .eval-blancas {
  background: #f8fafc;
  border: 1px solid #94a3b8;
  color: #0f172a;
}

.chess-course-wrapper .eval-tablas {
  background: #f1f5f9;
  border: 1px solid #94a3b8;
  color: #334155;
}

.chess-course-wrapper .eval-negras {
  background: #1e293b;
  border: 1px solid #0f172a;
  color: #f8fafc;
}

.chess-course-wrapper .eval-feedback {
  display: none;
  font-size: 0.9rem;
  text-align: center;
  padding: 6px 10px;
  border-radius: 8px;
  max-width: 340px;
}

.chess-course-wrapper .eval-feedback.acierto {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.chess-course-wrapper .eval-feedback.fallo {
  background: #fee2e2;
  color: #7f1d1d;
  border: 1px solid #fca5a5;
}

.chess-course-wrapper .cv-panel {
  margin: 12px auto 4px;
  max-width: 520px;
  text-align: center;
}

.chess-course-wrapper .cv-tarea {
  background: rgba(15, 23, 42, 0.06);
  border: 1px dashed rgba(15, 23, 42, 0.25);
  border-radius: 10px;
  padding: 10px 14px;
}

.chess-course-wrapper .cv-pregunta {
  font-weight: 700;
  color: #1e1b4b;
  margin-bottom: 8px;
}

.chess-course-wrapper .cv-opciones {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 4px;
}

.chess-course-wrapper .cv-btn {
  border: 1px solid #2563eb;
  background: #fff;
  color: #1e3a8a;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.15s ease, transform 0.1s ease;
}

.chess-course-wrapper .cv-btn:hover {
  background: #eff6ff;
  transform: translateY(-1px);
}

.chess-course-wrapper .cv-btn:active {
  transform: translateY(0);
}

.chess-course-wrapper .cv-estado {
  font-size: 0.82rem;
  color: #64748b;
  margin-top: 4px;
}

.chess-course-wrapper .cv-bar {
  font-weight: 700;
  color: #1e3a8a;
  padding: 6px 0;
}

.chess-course-wrapper .fg-checklist {
  margin: 10px auto 4px;
  max-width: 520px;
  text-align: left;
  font-size: 0.9rem;
}

.chess-course-wrapper .fg-checklist-titulo {
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #6d28d9;
  margin-bottom: 4px;
  text-align: left;
}

.chess-course-wrapper .fg-chequeo {
  color: #475569;
  padding: 1px 0 1px 4px;
  border-left: 3px solid transparent;
}

.chess-course-wrapper .fg-chequeo.hecho {
  color: #065f46;
  border-left-color: #10b981;
}

.chess-course-wrapper .chess-board-holder .sin-datos {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #7f1d1d;
  background: rgba(254, 242, 242, 0.94);
  border: 2px dashed #fca5a5;
  border-radius: 12px;
  z-index: 30;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-panel {
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-item {
  flex: 0 0 auto;
  min-width: 0;
  width: 100%;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel > *,
.chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-panel > .hud-item {
  box-sizing: border-box;
}

.chess-course-wrapper .chess-v6-layout.tablero-analisis #hud-pv {
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.85rem;
  color: #64748b;
  overflow-wrap: anywhere;
  line-height: 1.35;
  text-align: center;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.tablero-analisis {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 260px) minmax(0, 480px) 28px minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel {
    display: flex;
    flex-direction: column;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    align-self: stretch;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel .ta-lista {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel .ta-lista-filas {
    flex: 1 1 auto;
    max-height: none;
    min-height: 90px;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-centro {
    display: block;
    grid-row: 1;
    grid-column: 3;
    min-width: 0;
    align-self: start;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-der {
    grid-row: 1;
    grid-column: 4;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-panel {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .col-centro {
    display: block;
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis #ta-controles {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis #ta-lista {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis #ta-fen-bloque {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .status-box {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .chess-board-holder {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .board-tools {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .chess-controls {
    order: 6;
  }

  .chess-course-wrapper .chess-v6-layout.tablero-analisis .puzzle-details {
    order: 7;
  }
}

.chess-course-wrapper .ta-eval-vertical {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 0;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-pista {
  position: relative;
  box-sizing: border-box;
  width: 14px;
  height: 100%;
  overflow: hidden;
  border: 1px solid #94a3b8;
  border-radius: 7px;
  background: linear-gradient(to bottom, #444 var(--eval-percent, 50%), #c0c0c0 var(--eval-percent, 50%));
  transition: --eval-percent 1s ease;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-pista::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 7px;
  box-shadow: 0 0 5px rgb(0 0 0 / 0.5) inset;
  pointer-events: none;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-pista.reverse {
  transform: rotateX(180deg);
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-marcas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 12.5%;
  opacity: 0.4;
  border-bottom: 2px ridge #888;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(1) {
  height: 12.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(2) {
  height: 25%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(3) {
  height: 37.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(4) {
  height: 50%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(5) {
  height: 62.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(6) {
  height: 75%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick:nth-child(7) {
  height: 87.5%;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-tick.cero {
  top: 6px;
  left: 0;
  height: 50%;
  margin-top: -3px;
  opacity: 1;
  border-bottom: 7px solid #3692e7;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-nota {
  position: absolute;
  left: 50%;
  writing-mode: vertical-rl;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.66rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-nota.arriba {
  top: 5px;
  transform: translateX(-50%) rotate(180deg);
  color: #e2e8f0;
}

.chess-course-wrapper .ta-eval-vertical .ta-eval-nota.abajo {
  bottom: 5px;
  transform: translateX(-50%);
  color: #0f172a;
}

.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.arriba {
  color: #0f172a;
}

.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.abajo {
  color: #e2e8f0;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .ta-eval-vertical {
    height: auto !important;
    flex-direction: column;
    padding: 6px 0 0;
    margin: 0 auto 12px;
    max-width: 480px;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-pista {
    width: 100%;
    height: 12px;
    border-radius: 6px;
    background: linear-gradient(to right, #444 var(--eval-percent, 50%), #c0c0c0 var(--eval-percent, 50%));
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-pista::after {
    border-radius: 6px;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-pista.reverse {
    transform: rotate(180deg);
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-marcas {
    display: none;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-nota {
    position: static;
    writing-mode: horizontal-tb;
    transform: none;
    display: block;
    text-align: center;
    margin-top: 4px;
    font-size: 0.72rem;
  }

  .chess-course-wrapper .ta-eval-vertical .ta-eval-nota.arriba,
.chess-course-wrapper .ta-eval-vertical .ta-eval-nota.abajo,
.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.arriba,
.chess-course-wrapper .ta-eval-vertical.invertida .ta-eval-nota.abajo {
    color: #334155;
  }
}

.chess-course-wrapper .ta-fuente {
  font-size: 0.7rem;
  font-weight: 400;
  color: #64748b;
  text-align: center;
  line-height: 1.2;
}

.chess-course-wrapper .ta-controles {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto 8px;
}

.chess-course-wrapper .ta-fila-nav,
.chess-course-wrapper .ta-fila-acciones {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .ta-fila-nav .ta-btn,
.chess-course-wrapper .ta-fila-acciones .ta-btn {
  flex: 1 1 auto;
}

.chess-course-wrapper .ta-btn {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #1e293b;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.chess-course-wrapper .ta-btn:hover:not(:disabled) {
  background: #f1f5f9;
  border-color: #94a3b8;
}

.chess-course-wrapper .ta-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chess-course-wrapper .ta-btn.ta-analizar {
  background: #1d4ed8;
  border-color: #1e40af;
  color: #ffffff;
}

.chess-course-wrapper .ta-btn.ta-analizar:hover:not(:disabled) {
  background: #1e40af;
}

.chess-course-wrapper .ta-btn.ta-limpiar {
  background: #fff7ed;
  border-color: #fdba74;
}

.chess-course-wrapper .ta-btn.ta-reiniciar {
  background: #f5f3ff;
  border-color: #c4b5fd;
}

.chess-course-wrapper .ta-select,
.chess-course-wrapper .ta-input {
  min-width: 0;
  padding: 5px 7px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  font-size: 0.82rem;
}

.chess-course-wrapper .ta-select {
  flex: 0 1 150px;
}

.chess-course-wrapper .ta-input {
  flex: 1 1 130px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

.chess-course-wrapper .ta-fen-bloque {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 8px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
}

.chess-course-wrapper .ta-bloque-titulo {
  flex: 1 0 100%;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #475569;
}

.chess-course-wrapper .ta-fen-bloque .ta-select,
.chess-course-wrapper .ta-fen-bloque .ta-input,
.chess-course-wrapper .ta-fen-bloque .ta-btn {
  flex: 1 1 100%;
}

.chess-course-wrapper .pgn-bloque {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 8px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
}

.chess-course-wrapper .pgn-bloque-titulo {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #475569;
}

.chess-course-wrapper .pgn-textarea {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  padding: 6px 7px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.74rem;
  line-height: 1.45;
  color: #1e293b;
  resize: vertical;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

.chess-course-wrapper .pgn-textarea:focus {
  outline: 2px solid #93c5fd;
  outline-offset: -1px;
  border-color: #60a5fa;
}

.chess-course-wrapper .pgn-textarea[readonly] {
  background: #f8fafc;
  color: #334155;
}

.chess-course-wrapper .pgn-aviso {
  min-height: 1em;
  font-size: 0.74rem;
  line-height: 1.35;
}

.chess-course-wrapper .pgn-aviso.ok {
  color: #15803d;
}

.chess-course-wrapper .pgn-aviso.error {
  color: #b91c1c;
}

.chess-course-wrapper .pgn-fila {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chess-course-wrapper .pgn-btn {
  flex: 1 1 auto;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #1e293b;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.chess-course-wrapper .pgn-btn:hover:not(:disabled) {
  background: #f1f5f9;
  border-color: #94a3b8;
}

.chess-course-wrapper .pgn-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chess-course-wrapper .pgn-btn.pgn-exportar {
  background: #1d4ed8;
  border-color: #1e40af;
  color: #ffffff;
}

.chess-course-wrapper .pgn-btn.pgn-exportar:hover:not(:disabled) {
  background: #1e40af;
}

.chess-course-wrapper .pgn-fichero {
  display: none;
}

@media (max-width: 768px) {
  .chess-course-wrapper .pgn-btn {
    flex: 1 1 100%;
  }
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.pgn-reproductor {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 300px) minmax(0, 480px) minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel {
    display: flex;
    flex-direction: column;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    gap: 8px;
    align-self: stretch;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .col-der {
    grid-row: 1;
    grid-column: 3;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .col-centro {
    display: none;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-lista {
    flex: 1 1 auto;
    min-height: 0;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .hud-panel {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .hud-item {
    flex: 0 0 auto;
    min-width: 0;
    width: 100%;
    box-sizing: border-box;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .status-box {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .chess-board-holder {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .board-tools {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-cabecera {
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-nav {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-actual {
    order: 6;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-selector {
    order: 7;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-lista {
    order: 8;
  }

  .chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-bloque {
    order: 9;
  }
}

.chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel > *,
.chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel .pgn-bloque {
  box-sizing: border-box;
}

.chess-course-wrapper .chess-v6-layout.pgn-reproductor .pgn-rep-panel .pgn-fila .pgn-btn {
  flex: 1 1 45%;
}

.chess-course-wrapper .pgn-rep-cabecera {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 8px;
  padding: 7px 8px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
}

.chess-course-wrapper .pgn-rep-tag {
  display: flex;
  gap: 6px;
  font-size: 0.74rem;
  line-height: 1.35;
}

.chess-course-wrapper .pgn-rep-tag-nombre {
  flex: 0 0 6.5rem;
  color: #64748b;
  font-weight: 600;
}

.chess-course-wrapper .pgn-rep-tag-valor {
  flex: 1 1 auto;
  min-width: 0;
  color: #1e293b;
  overflow-wrap: break-word;
}

.chess-course-wrapper .pgn-rep-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 6px;
}

.chess-course-wrapper .pgn-rep-btn {
  flex: 0 0 auto;
  min-width: 32px;
  padding: 5px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  color: #334155;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
}

.chess-course-wrapper .pgn-rep-btn:hover:not(:disabled) {
  background: #eff6ff;
  border-color: #60a5fa;
}

.chess-course-wrapper .pgn-rep-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.chess-course-wrapper .pgn-rep-auto {
  flex: 1 1 auto;
}

.chess-course-wrapper .pgn-rep-auto.activo {
  background: #1e40af;
  border-color: #1e40af;
  color: #ffffff;
}

.chess-course-wrapper .pgn-rep-actual {
  margin-bottom: 6px;
  padding: 4px 8px;
  border-radius: 8px;
  background: #eff6ff;
  color: #1e40af;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 700;
  text-align: center;
}

.chess-course-wrapper .pgn-rep-lista {
  max-height: 260px;
  overflow-y: auto;
  padding: 4px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
}

.chess-course-wrapper .pgn-rep-fila {
  display: flex;
  align-items: stretch;
  gap: 3px;
}

.chess-course-wrapper .pgn-rep-num {
  flex: 0 0 2.1rem;
  padding: 3px 0;
  color: #475569;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.74rem;
  text-align: right;
}

.chess-course-wrapper .pgn-rep-jugada {
  flex: 1 1 0;
  min-width: 0;
  padding: 3px 6px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: #1e293b;
  font-family: "DejaVu Sans", "Segoe UI Symbol", system-ui, sans-serif;
  font-size: 0.8rem;
  line-height: 1.3;
  text-align: left;
  cursor: pointer;
}

.chess-course-wrapper .pgn-rep-jugada:hover {
  background: #e0f2fe;
}

.chess-course-wrapper .pgn-rep-jugada.activa {
  background: #1d4ed8;
  border-color: #1d4ed8;
  color: #ffffff;
  font-weight: 700;
}

.chess-course-wrapper .pgn-rep-vacio {
  margin: 4px 2px;
  color: #475569;
  font-size: 0.76rem;
  font-style: italic;
}

.chess-course-wrapper .pgn-rep-selector {
  box-sizing: border-box;
  width: 100%;
  margin-bottom: 6px;
  padding: 5px 7px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  color: #1e293b;
  font-size: 0.76rem;
}

.chess-course-wrapper .ta-lista {
  width: 100%;
  max-width: 100%;
  margin: 0 auto 8px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
  overflow: hidden;
}

.chess-course-wrapper .ta-lista-cabecera {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  border-bottom: 1px solid #e2e8f0;
  background: #f8fafc;
}

.chess-course-wrapper .ta-lista-titulo {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #475569;
}

.chess-course-wrapper .ta-select.ta-forma {
  flex: 0 1 auto;
}

.chess-course-wrapper .ta-lista-filas {
  max-height: 168px;
  overflow-y: auto;
  padding: 4px 6px 6px;
}

.chess-course-wrapper .ta-lista-vacia {
  margin: 6px 2px;
  font-size: 0.8rem;
  font-style: italic;
  color: #475569;
}

.chess-course-wrapper .ta-lista-fila {
  display: flex;
  align-items: baseline;
  gap: 10px;
  line-height: 1.7;
}

.chess-course-wrapper .ta-lista-num {
  flex: 0 0 2.1em;
  text-align: right;
  padding-right: 2px;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: #475569;
}

.chess-course-wrapper .ta-jugada {
  flex: 0 1 auto;
  min-width: 4.6em;
  padding: 1px 4px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: #1e293b;
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', serif;
  font-variant-emoji: text;
  font-size: 0.92rem;
  line-height: 1.5;
  text-align: left;
  white-space: pre;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

.chess-course-wrapper .ta-jugada:hover {
  background: #f1f5f9;
}

.chess-course-wrapper .ta-jugada-actual {
  background: #dbeafe;
  box-shadow: inset 0 0 0 1px #93c5fd;
  font-weight: 700;
}

.chess-course-wrapper .ta-jugada-actual:hover {
  background: #dbeafe;
}

.chess-course-wrapper .exportar-bloque .exportar-grupo {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px 0;
}

.chess-course-wrapper .exportar-bloque .exportar-grupo > .exportar-label,
.chess-course-wrapper .exportar-bloque .exportar-grupo > .exportar-select,
.chess-course-wrapper .exportar-bloque .exportar-grupo > .exportar-input {
  width: 100%;
}

.chess-course-wrapper .exportar-bloque .exportar-fila {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .exportar-bloque .exportar-label {
  font-size: 0.72rem;
  color: #475569;
  white-space: nowrap;
}

.chess-course-wrapper .exportar-bloque .exportar-select,
.chess-course-wrapper .exportar-bloque .exportar-input {
  box-sizing: border-box;
  min-width: 0;
  max-width: 100%;
  padding: 5px 6px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 0.76rem;
  color: #1e293b;
  background: #ffffff;
}

.chess-course-wrapper .exportar-bloque .exportar-fila .exportar-input {
  flex: 1 1 70px;
}

.chess-course-wrapper .exportar-bloque .exportar-fila .exportar-select {
  flex: 0 1 auto;
}

.chess-course-wrapper .exportar-bloque .exportar-select-corta,
.chess-course-wrapper .exportar-bloque .exportar-input-corta {
  flex: 0 1 92px;
}

.chess-course-wrapper .exportar-bloque .exportar-input:disabled,
.chess-course-wrapper .exportar-bloque .exportar-input:disabled + * {
  opacity: 0.45;
}

.chess-course-wrapper .exportar-bloque .exportar-nota {
  font-size: 0.68rem;
  line-height: 1.35;
  color: #64748b;
}

.chess-course-wrapper .exportar-bloque .exportar-cajas {
  gap: 10px;
}

.chess-course-wrapper .exportar-bloque .exportar-check {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.74rem;
  color: #334155;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > *,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-panel > .hud-item {
  box-sizing: border-box;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .col-centro {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-panel {
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-item {
  flex: 0 0 auto;
  min-width: 0;
  width: 100%;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas #hud-pv {
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.95rem;
  color: #1e293b;
  overflow-wrap: anywhere;
  line-height: 1.35;
  text-align: center;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.explorador-aperturas {
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 280px) minmax(0, 480px) minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel {
    display: flex;
    flex-direction: column;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    min-height: 0;
    gap: 10px;
    align-self: stretch;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-bloque,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-fila-nav {
    flex: 0 0 auto;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-bloque-hijos {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijos {
    flex: 1 1 auto;
    overflow-y: auto;
    max-height: min(224px, calc(100vh - 360px));
    min-height: 90px;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .col-der {
    grid-row: 1;
    grid-column: 3;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel {
    display: contents;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-bloque,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-panel > .ea-fila-nav {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .hud-panel {
    order: 1;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .status-box {
    order: 2;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .chess-board-holder {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .board-tools {
    order: 3;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .chess-controls {
    order: 6;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .puzzle-details {
    order: 7;
  }

  .chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijos {
    max-height: 220px;
    overflow-y: auto;
  }
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-bloque {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 8px 10px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-bloque-titulo {
  display: block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #64748b;
  margin-bottom: 6px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-apertura {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-eco {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #1e40af;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 4px;
  padding: 1px 6px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-nombre {
  font-size: 0.92rem;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-cifras {
  font-size: 0.72rem;
  color: #64748b;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-puzzles {
  display: inline-block;
  margin-left: 6px;
  padding: 0 5px;
  font-size: 0.7rem;
  color: #475569;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  white-space: nowrap;
  cursor: default;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-hijo-info .ea-puzzles {
  margin-left: 0;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar-caja:empty,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica.ea-vacia,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-bloque-vacio {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 7px 10px;
  font-size: 0.8rem;
  color: #ffffff;
  background: #2171b5;
  border: 1px solid #1a5c96;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar:hover {
  background: #1a5c96;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practicar:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas--practica .ea-bloque-hijos,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas--practica .ea-fila-nav,
.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas--practica .ea-bloque-busca {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-cab {
  font-size: 0.92rem;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-marcador {
  margin-top: 6px;
  font-size: 0.78rem;
  color: #334155;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-meta {
  font-size: 0.72rem;
  color: #64748b;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-progreso {
  margin: 6px 0;
  padding: 4px 8px;
  font-size: 0.76rem;
  color: #1e3a5f;
  background: #eff6ff;
  border-left: 3px solid #2171b5;
  border-radius: 3px;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-siguiente {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 7px 10px;
  font-size: 0.8rem;
  color: #ffffff;
  background: #15803d;
  border: 1px solid #166534;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-siguiente:hover {
  background: #166534;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-volver {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 6px 10px;
  font-size: 0.78rem;
  color: #334155;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-volver:hover {
  background: #f1f5f9;
}

.chess-course-wrapper .chess-v6-layout.entrenamiento-aperturas .ea-practica .ea-pra-pista {
  margin: 8px 0 0;
  font-size: 0.68rem;
  color: #64748b;
  line-height: 1.35;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-buscador {
  width: 100%;
  font-size: 0.82rem;
  padding: 5px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #ffffff;
  color: #1e293b;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-buscador:focus {
  outline: 2px solid #2171b5;
  outline-offset: -1px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultados {
  margin-top: 6px;
  max-height: 190px;
  overflow-y: auto;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultado {
  display: block;
  width: 100%;
  text-align: left;
  font-size: 0.76rem;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 5px;
  padding: 4px 7px;
  margin-bottom: 4px;
  cursor: pointer;
  overflow-wrap: anywhere;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultado:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-resultado:focus {
  border-color: #2171b5;
  background: #eff6ff;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo {
  display: grid;
  grid-template-columns: 2.6em 1fr;
  grid-template-areas: "jugada info" "barra barra";
  align-items: center;
  gap: 2px 6px;
  width: 100%;
  text-align: left;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 5px 7px;
  margin-bottom: 5px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo:focus {
  border-color: #2171b5;
  background: #eff6ff;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-jugada {
  grid-area: jugada;
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.92rem;
  font-weight: 600;
  color: #1e293b;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-info {
  grid-area: info;
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-nombre {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.7rem;
  color: #475569;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-hijo-num {
  flex: 0 0 auto;
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
  color: #475569;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-barra {
  grid-area: barra;
  display: block;
  height: 4px;
  border-radius: 2px;
  background: #e2e8f0;
  overflow: hidden;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-barra-relleno {
  display: block;
  height: 100%;
  border-radius: 2px;
  background: #2171b5;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-vacio {
  margin: 2px 0;
  font-size: 0.72rem;
  font-style: italic;
  color: #475569;
  line-height: 1.35;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-linea {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  max-height: 78px;
  overflow-y: auto;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov {
  font-family: 'DejaVu Sans', 'Segoe UI Symbol', 'Noto Sans Symbols 2', 'Apple Symbols', ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-emoji: text;
  font-size: 0.82rem;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 2px 5px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov-negro {
  background: #e2e8f0;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-mov:focus {
  border-color: #2171b5;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-fila-nav {
  display: flex;
  gap: 5px;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-btn {
  flex: 1 1 auto;
  font-size: 0.92rem;
  padding: 5px 0;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
}

.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-btn:hover,
.chess-course-wrapper .chess-v6-layout.explorador-aperturas .ea-btn:focus {
  border-color: #2171b5;
  background: #eff6ff;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.versus-motor {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    grid-template-columns: minmax(0, 300px) minmax(0, 480px) minmax(0, 1fr);
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .col-centro {
    display: block;
    grid-row: 1;
    grid-column: 1;
    min-width: 0;
    align-self: start;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .col-izq {
    grid-row: 1;
    grid-column: 2;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .col-der {
    grid-row: 1;
    grid-column: 3;
  }
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .chess-v6-layout.versus-motor .col-centro {
    display: block;
    order: 4;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .chess-controls {
    order: 5;
  }

  .chess-course-wrapper .chess-v6-layout.versus-motor .puzzle-details {
    order: 6;
  }
}

.chess-course-wrapper .coach-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
  padding: 10px 11px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #ffffff;
}

.chess-course-wrapper .coach-titulo {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #334155;
  padding-bottom: 6px;
  border-bottom: 1px solid #eef2f7;
}

.chess-course-wrapper .coach-linea {
  font-size: 0.72rem;
  line-height: 1.35;
  color: #475569;
  background: #f8fafc;
  border: 1px solid #eef2f7;
  border-radius: 6px;
  padding: 5px 7px;
}

.chess-course-wrapper .coach-cuerpo {
  font-size: 0.8rem;
  line-height: 1.45;
  color: #1e293b;
  overflow-wrap: anywhere;
  max-height: 62vh;
  overflow-y: auto;
}

.chess-course-wrapper .coach-cuerpo.coach-vacio {
  color: #64748b;
  font-style: italic;
}

.chess-course-wrapper .coach-cuerpo.coach-espera {
  color: #92400e;
}

.chess-course-wrapper .coach-cuerpo.coach-texto {
  white-space: normal;
}

.chess-course-wrapper .coach-cuerpo p {
  margin: 0 0 6px;
  white-space: pre-line;
}

.chess-course-wrapper .coach-cuerpo p:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .coach-cuerpo p.coach-h {
  margin: 10px 0 5px;
  font-weight: 700;
  color: #0f172a;
  white-space: normal;
}

.chess-course-wrapper .coach-cuerpo ul,
.chess-course-wrapper .coach-cuerpo ol {
  margin: 0 0 6px;
  padding-left: 18px;
}

.chess-course-wrapper .coach-cuerpo li {
  margin: 0 0 3px;
}

.chess-course-wrapper .coach-cuerpo hr {
  border: 0;
  border-top: 1px solid #eef2f7;
  margin: 9px 0;
}

.chess-course-wrapper .coach-cuerpo strong {
  color: #0f172a;
}

.chess-course-wrapper .coach-cuerpo code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.94em;
  background: #f1f5f9;
  border-radius: 3px;
  padding: 0 3px;
}

.chess-course-wrapper .coach-boton {
  font-size: 0.8rem;
  padding: 7px 8px;
  color: #ffffff;
  background: #2171b5;
  border: 1px solid #1b5e93;
  border-radius: 7px;
  cursor: pointer;
}

.chess-course-wrapper .coach-boton:hover:not(:disabled),
.chess-course-wrapper .coach-boton:focus-visible:not(:disabled) {
  background: #1b5e93;
}

.chess-course-wrapper .coach-boton:disabled {
  opacity: 0.55;
  cursor: default;
}

.chess-course-wrapper .mp-bandeja {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin: 6px 0;
  min-height: 34px;
}

.chess-course-wrapper .mp-pieza {
  width: 34px;
  height: 34px;
  padding: 0;
  font-size: 24px;
  line-height: 1;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(15, 23, 42, 0.22);
  border-radius: 7px;
  cursor: pointer;
}

.chess-course-wrapper .mp-pieza:hover:not(:disabled),
.chess-course-wrapper .mp-pieza:focus-visible:not(:disabled) {
  background: #e0e7ff;
}

.chess-course-wrapper .mp-pieza.sel {
  background: #1e1b4b;
  border-color: #1e1b4b;
  box-shadow: 0 0 0 2px rgba(30, 27, 75, 0.35);
}

.chess-course-wrapper .mp-aviso {
  font-size: 13px;
  opacity: 0.75;
  margin-top: 2px;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .chess-board-holder {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .hud-panel {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .chess-controls {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego #puzzle-details {
  display: none;
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .col-der .status-box {
  margin-bottom: 4px;
}

@media (min-width: 900px) and (min-height: 480px) {
  .chess-course-wrapper .chess-v6-layout.analiticas-juego {
    grid-template-columns: minmax(0, 1fr);
  }
}

.chess-course-wrapper .chess-v6-layout.analiticas-juego .col-izq {
  max-width: 100%;
}

.chess-course-wrapper .aj-cuenta {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.chess-course-wrapper .aj-cuenta .aj-bloque-titulo {
  margin: 0 0 4px;
}

.chess-course-wrapper .aj-cuenta-fila {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin: 6px 0;
}

.chess-course-wrapper .aj-cuenta-etiqueta {
  font-size: 0.78rem;
  color: #475569;
  min-width: 74px;
}

.chess-course-wrapper .aj-cuenta-input {
  flex: 1 1 160px;
  min-width: 120px;
  max-width: 260px;
  padding: 5px 8px;
  font-size: 0.9rem;
  border: 1px solid #cbd5e1;
  border-radius: 5px;
  background: #fff;
  color: #0f172a;
}

.chess-course-wrapper .aj-cuenta-input:focus {
  outline: 2px solid #1d4ed8;
  outline-offset: 1px;
  border-color: #1d4ed8;
}

.chess-course-wrapper .aj-cuenta-nota {
  font-size: 0.78rem;
  color: #64748b;
  margin-top: 6px;
}

.chess-course-wrapper .aj-cuenta-nota.error {
  color: #b91c1c;
}

@media (max-width: 599px) {
  .chess-course-wrapper .aj-cuenta-input {
    max-width: none;
  }
}

.chess-course-wrapper .aj-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0 0 12px;
}

.chess-course-wrapper .aj-bloque {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 14px;
}

.chess-course-wrapper .aj-bloque > * {
  box-sizing: border-box;
}

.chess-course-wrapper .aj-bloque-titulo {
  margin: 0 0 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .aj-bloque-titulo .aj-pill {
  margin-left: auto;
  font-size: 0.68rem;
  font-weight: 600;
  color: #475569;
  background: #e2e8f0;
  border-radius: 9px;
  padding: 1px 7px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.chess-course-wrapper .aj-aviso {
  margin: 0;
  font-size: 0.85rem;
  color: #7c2d12;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 6px;
  padding: 7px 10px;
}

.chess-course-wrapper .aj-nota {
  margin: 0;
  font-size: 0.8rem;
  color: #475569;
}

.chess-course-wrapper .aj-cabecera {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.chess-course-wrapper .aj-cabecera h3 {
  margin: 0;
  font-size: 1.05rem;
  color: #0f172a;
}

.chess-course-wrapper .aj-cabecera .aj-plataforma {
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 4px;
  padding: 1px 6px;
  color: #fff;
  background: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-right: 8px;
}

.chess-course-wrapper .aj-cabecera .aj-plataforma.lichess {
  background: #7b3f00;
}

.chess-course-wrapper .aj-cabecera .aj-plataforma.chesscom {
  background: #1a56db;
}

.chess-course-wrapper .aj-cabecera .aj-sub {
  width: 100%;
  font-size: 0.8rem;
  color: #64748b;
}

.chess-course-wrapper .aj-tarjetas {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 8px;
}

.chess-course-wrapper .aj-tarjeta {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 7px;
  padding: 8px 10px;
}

.chess-course-wrapper .aj-tarjeta h4 {
  margin: 0 0 2px;
  font-size: 0.82rem;
  color: #475569;
  font-weight: 600;
}

.chess-course-wrapper .aj-tarjeta .aj-nota {
  margin: 0;
}

.chess-course-wrapper .aj-rating {
  font-size: 1.35rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.1;
}

.chess-course-wrapper .aj-rating small {
  font-size: 0.7rem;
  font-weight: 600;
  color: #64748b;
}

.chess-course-wrapper .aj-balance {
  display: flex;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  margin: 2px 0 4px;
  background: #e2e8f0;
}

.chess-course-wrapper .aj-balance span {
  display: block;
  height: 100%;
}

.chess-course-wrapper .aj-balance .v {
  background: #15803d;
}

.chess-course-wrapper .aj-balance .d {
  background: #b91c1c;
}

.chess-course-wrapper .aj-balance .e {
  background: #64748b;
}

.chess-course-wrapper .aj-balance-texto {
  font-size: 0.76rem;
  color: #475569;
}

.chess-course-wrapper .aj-tira {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}

.chess-course-wrapper .aj-tira i {
  width: 15px;
  height: 15px;
  border-radius: 3px;
  display: block;
  font-style: normal;
  font-size: 0.6rem;
  line-height: 15px;
  text-align: center;
  color: #fff;
  font-weight: 700;
}

.chess-course-wrapper .aj-tira i.v {
  background: #15803d;
}

.chess-course-wrapper .aj-tira i.d {
  background: #b91c1c;
}

.chess-course-wrapper .aj-tira i.e {
  background: #64748b;
}

.chess-course-wrapper .aj-serie {
  width: 100%;
  height: 120px;
  display: block;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
}

.chess-course-wrapper .aj-serie-eje {
  stroke: #cbd5e1;
  stroke-width: 1;
}

.chess-course-wrapper .aj-serie-linea {
  fill: none;
  stroke: #1d4ed8;
  stroke-width: 2;
}

.chess-course-wrapper .aj-serie-punto {
  fill: #1d4ed8;
}

.chess-course-wrapper .aj-barras {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.chess-course-wrapper .aj-barra-fila {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 58px;
  gap: 8px;
  align-items: center;
}

.chess-course-wrapper .aj-barra-etq {
  font-size: 0.78rem;
  color: #334155;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chess-course-wrapper .aj-barra-pista {
  background: #e2e8f0;
  border-radius: 4px;
  height: 14px;
  overflow: hidden;
}

.chess-course-wrapper .aj-barra-relleno {
  background: #1d4ed8;
  height: 100%;
  border-radius: 4px;
}

.chess-course-wrapper .aj-barra-num {
  font-size: 0.74rem;
  color: #64748b;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.chess-course-wrapper .aj-meta {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid #e2e8f0;
}

.chess-course-wrapper .aj-meta:last-child {
  border-bottom: 0;
}

.chess-course-wrapper .aj-meta-marca {
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
}

.chess-course-wrapper .aj-meta.ok .aj-meta-marca {
  color: #15803d;
}

.chess-course-wrapper .aj-meta.no .aj-meta-marca {
  color: #b91c1c;
}

.chess-course-wrapper .aj-meta-texto {
  font-size: 0.85rem;
  color: #1e293b;
}

.chess-course-wrapper .aj-meta-texto em {
  font-style: normal;
  color: #475569;
  font-size: 0.78rem;
}

.chess-course-wrapper .aj-meta-valor {
  font-size: 0.82rem;
  color: #475569;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.chess-course-wrapper .aj-nota {
  margin-top: 8px;
  padding: 8px 10px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 6px;
  font-size: 0.85rem;
  color: #1e3a8a;
  font-weight: 600;
}

.chess-course-wrapper .aj-nota.sin {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #475569;
  font-weight: 400;
}

.chess-course-wrapper .aj-acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chess-course-wrapper .aj-boton {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 6px;
  border: 1px solid #1d4ed8;
  background: #1d4ed8;
  color: #fff;
  cursor: pointer;
}

.chess-course-wrapper .aj-rejilla3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.chess-course-wrapper .aj-col {
  min-width: 0;
}

.chess-course-wrapper .aj-col-titulo {
  margin: 0 0 4px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
}

.chess-course-wrapper .aj-barras-titulo {
  margin: 6px 0 1px;
  font-size: 0.76rem;
  color: #475569;
}

@media (max-width: 767px) {
  .chess-course-wrapper .aj-rejilla3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.chess-course-wrapper .aj-donut-caja {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.chess-course-wrapper .aj-donut {
  width: 110px;
  height: 110px;
  flex: 0 0 auto;
}

.chess-course-wrapper .aj-donut-total {
  font-size: 0.95rem;
  font-weight: 700;
  fill: #0f172a;
}

.chess-course-wrapper .aj-donut-sub {
  font-size: 0.58rem;
  fill: #64748b;
}

.chess-course-wrapper .aj-donut-leyenda {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: #334155;
}

.chess-course-wrapper .aj-donut-leyenda-fila {
  display: flex;
  align-items: center;
  gap: 6px;
}

.chess-course-wrapper .aj-donut-punto {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.chess-course-wrapper .aj-pestanas {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 10px;
  border-bottom: 2px solid #e2e8f0;
}

.chess-course-wrapper .aj-pestana {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: 1px solid #e2e8f0;
  border-bottom: none;
  background: #f8fafc;
  color: #475569;
  font: inherit;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
}

.chess-course-wrapper .aj-pestana:hover {
  background: #eef2f7;
  color: #1e293b;
}

.chess-course-wrapper .aj-pestana.activa {
  background: #fff;
  color: #0f172a;
  font-weight: 700;
  border-color: #cbd5e1;
  box-shadow: inset 0 -3px 0 #1d4ed8;
}

.chess-course-wrapper .aj-pestana:focus-visible {
  outline: 2px solid #1e40af;
  outline-offset: -2px;
}

.chess-course-wrapper .aj-pestana-cuerpo:focus-visible {
  outline: 2px solid #1e40af;
  outline-offset: 2px;
}

.chess-course-wrapper .aj-boton.secundario {
  background: #fff;
  color: #1d4ed8;
}

.chess-course-wrapper .aj-boton:disabled {
  opacity: 0.55;
  cursor: default;
}

.chess-course-wrapper .aj-boton:focus-visible {
  outline: 2px solid #1e40af;
  outline-offset: 2px;
}

.chess-course-wrapper .aj-tabla-actividad {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  margin-top: 6px;
}

.chess-course-wrapper .aj-tabla-actividad th,
.chess-course-wrapper .aj-tabla-actividad td {
  padding: 3px 6px;
  text-align: center;
}

.chess-course-wrapper .aj-tabla-actividad th {
  background: #f1f5f9;
  color: #334155;
  font-weight: 600;
}

.chess-course-wrapper .aj-tabla-actividad td {
  color: #475569;
}

.chess-course-wrapper .aj-tabla-actividad tr:nth-child(even) td {
  background: #f8fafc;
}

.chess-course-wrapper .aj-tabla-actividad td:first-child {
  text-align: left;
  font-weight: 600;
}

.chess-course-wrapper .aj-tabla-actividad tbody tr:last-child td {
  background: #eef2f7;
  font-weight: 700;
  color: #0f172a;
}

.chess-course-wrapper .aj-torneos {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chess-course-wrapper .aj-torneo {
  border: 1px solid #e2e8f0;
  border-left: 3px solid #1d4ed8;
  border-radius: 5px;
  padding: 5px 8px;
  background: #fff;
}

.chess-course-wrapper .aj-torneo-nombre {
  font-size: 0.85rem;
  font-weight: 600;
  color: #0f172a;
}

.chess-course-wrapper .aj-torneo-detalle {
  font-size: 0.76rem;
  color: #64748b;
  margin-top: 1px;
}

.chess-course-wrapper .aj-torneo-enlace {
  font-size: 0.76rem;
  color: #1d4ed8;
  text-decoration: none;
}

.chess-course-wrapper .aj-torneo-enlace:hover {
  text-decoration: underline;
}

@media (max-width: 899px), (max-height: 479px) {
  .chess-course-wrapper .aj-tarjetas {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .chess-course-wrapper .aj-serie {
    height: 100px;
  }
}

.chess-course-wrapper .studio-chess-form {
  max-width: 860px;
  margin: 0 auto;
  border-radius: 14px;
  border: 1px solid #e5e9f0;
  background: #ffffff;
  overflow: hidden;
}

.chess-course-wrapper .studio-chess-form * {
  box-sizing: border-box;
}

.chess-course-wrapper .studio-chess-form .form-header {
  padding: 22px 28px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-bottom: 1px solid #eef1f6;
  background: linear-gradient(135deg, #f8fbff, #ffffff);
}

.chess-course-wrapper .studio-chess-form .form-header-badge {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2171b5, #10b981);
  box-shadow: 0 4px 10px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .studio-chess-form .form-header-badge svg {
  width: 24px;
  height: 24px;
  fill: #ffffff;
}

.chess-course-wrapper .studio-chess-form .form-header h3 {
  margin: 2px 0 4px 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1f2937;
}

.chess-course-wrapper .studio-chess-form .form-header p {
  margin: 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.5;
}

.chess-course-wrapper .studio-chess-form .form-body {
  padding: 24px 28px 8px;
}

.chess-course-wrapper .studio-chess-form .section {
  padding: 18px 20px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid #e5e9f0;
  background: #fbfcfe;
}

.chess-course-wrapper .studio-chess-form .section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #334155;
  text-transform: uppercase;
}

.chess-course-wrapper .studio-chess-form .section-title .section-accent {
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: linear-gradient(180deg, #2171b5, #10b981);
}

.chess-course-wrapper .studio-chess-form .section-desc {
  margin: 0 0 16px 0;
  color: #475569;
  font-size: 12.5px;
  line-height: 1.4;
  padding-left: 14px;
}

.chess-course-wrapper .studio-chess-form .section-subtitle {
  margin: 0 0 16px 0;
  font-size: 13px;
  font-weight: 700;
  color: #334155;
}

.chess-course-wrapper .studio-chess-form .section-note {
  margin: 0;
  color: #5b6b7f;
  font-size: 13px;
  line-height: 1.5;
}

.chess-course-wrapper .studio-chess-form .form-group {
  margin-bottom: 16px;
}

.chess-course-wrapper .studio-chess-form .form-group:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .studio-chess-form label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}

.chess-course-wrapper .studio-chess-form label.checkbox-inline {
  font-weight: 500;
  color: #475569;
  background: #ffffff;
  border: 1px solid #e5e9f0;
  border-radius: 8px;
  padding: 9px 12px;
  margin: 0 0 8px 0;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.chess-course-wrapper .studio-chess-form label.checkbox-inline:hover {
  border-color: #2171b5;
  background: #f4f9ff;
}

.chess-course-wrapper .studio-chess-form label.checkbox-inline input {
  margin-right: 8px;
  vertical-align: middle;
  cursor: pointer;
}

.chess-course-wrapper .studio-chess-form label.checkbox-block {
  display: block;
}

.chess-course-wrapper .studio-chess-form .form-control {
  display: block;
  width: 100%;
  padding: 9px 12px;
  font-size: 14px;
  color: #1f2937;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  box-shadow: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chess-course-wrapper .studio-chess-form .form-control:focus {
  border-color: #2171b5;
  outline: 0;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.15);
}

.chess-course-wrapper .studio-chess-form select.form-control {
  cursor: pointer;
}

.chess-course-wrapper .studio-chess-form .form-hint {
  display: block;
  margin-top: 6px;
  color: #475569;
  font-size: 12px;
  line-height: 1.4;
}

.chess-course-wrapper .studio-chess-form hr.hr-muted {
  border: 0;
  border-top: 1px solid #eef1f6;
  margin: 0 0 16px 0;
}

.chess-course-wrapper .studio-chess-form .form-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  border-top: 1px solid #eef1f6;
  background: #f8fafc;
}

.chess-course-wrapper .studio-chess-form .btn {
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
}

.chess-course-wrapper .studio-chess-form .btn:active {
  transform: translateY(1px);
}

.chess-course-wrapper .studio-chess-form .btn-cancel {
  background: #ffffff;
  border-color: #d7dde8;
  color: #475569;
}

.chess-course-wrapper .studio-chess-form .btn-cancel:hover {
  background: #f1f5f9;
  border-color: #c3ccda;
}

.chess-course-wrapper .studio-chess-form .btn-save {
  background: linear-gradient(135deg, #2171b5, #1668a8);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .studio-chess-form .btn-save:hover {
  background: linear-gradient(135deg, #1b62a0, #115a94);
  box-shadow: 0 6px 16px rgba(33, 113, 181, 0.32);
}

.chess-course-wrapper .studio-chess-form .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.chess-course-wrapper .studio-chess-form .studio-step[hidden] {
  display: none;
}

.chess-course-wrapper .studio-chess-form .studio-stepper {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  padding: 10px 12px;
  color: #64748b;
  font-size: 13px;
  font-weight: 600;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 9px;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-active {
  color: #155a94;
  background: #f0f7ff;
  border-color: #8dbce6;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-complete {
  color: #087443;
  background: #f0fdf7;
  border-color: #86d5b1;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-number {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: #ffffff;
  font-size: 12px;
  background: #5b6b7f;
  border-radius: 50%;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-active .studio-stepper-number {
  background: #2171b5;
}

.chess-course-wrapper .studio-chess-form .studio-stepper-item.is-complete .studio-stepper-number {
  background: #10a36e;
}

.chess-course-wrapper .studio-chess-form .studio-step-heading {
  margin-bottom: 18px;
}

.chess-course-wrapper .studio-chess-form .studio-step-heading h4,
.chess-course-wrapper .studio-chess-form .studio-settings-header h4 {
  margin: 0 0 4px;
  color: #1f2937;
  font-size: 16px;
  font-weight: 700;
}

.chess-course-wrapper .studio-chess-form .studio-step-heading p,
.chess-course-wrapper .studio-chess-form .studio-settings-header p {
  margin: 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.45;
}

.chess-course-wrapper .studio-chess-form .btn-back {
  color: #334155;
  background: #ffffff;
  border-color: #cbd5e1;
}

.chess-course-wrapper .studio-chess-form .btn-back:hover {
  color: #155a94;
  background: #f4f9ff;
  border-color: #8dbce6;
}

.chess-course-wrapper .studio-chess-form .studio-settings-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eef1f6;
}

.chess-course-wrapper .studio-chess-form .studio-settings-header .btn-back {
  flex: 0 0 auto;
}

.chess-course-wrapper .studio-chess-form .studio-settings-titles {
  flex: 1 1 auto;
  min-width: 0;
}

.chess-course-wrapper .studio-chess-form .studio-manual-toggle {
  flex: 0 0 auto;
  color: #155a94;
  background: #eff6ff;
  border-color: #bfdbfe;
}

.chess-course-wrapper .studio-chess-form .studio-manual-toggle:hover {
  background: #dbeafe;
  border-color: #93c5fd;
}

.chess-course-wrapper .studio-chess-form .studio-settings-actions {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chess-course-wrapper .studio-chess-form .studio-export-toggle {
  color: #155a94;
  background: #eff6ff;
  border-color: #bfdbfe;
}

.chess-course-wrapper .studio-chess-form .studio-export-toggle:hover {
  background: #dbeafe;
  border-color: #93c5fd;
}

.chess-course-wrapper .studio-chess-form .studio-export-toggle[aria-expanded="true"] {
  background: #dbeafe;
  border-color: #3b82f6;
  font-weight: 600;
}

.chess-course-wrapper .studio-chess-form .studio-export-panel {
  margin-bottom: 20px;
  padding: 16px 20px;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  border-left: 4px solid #2171b5;
  background: #f8fafc;
}

.chess-course-wrapper .studio-chess-form .studio-export-panel[hidden] {
  display: none;
}

.chess-course-wrapper .studio-chess-form .studio-manual {
  margin-bottom: 20px;
  padding: 16px 20px;
  border-radius: 10px;
  border: 1px solid #bfdbfe;
  border-left: 4px solid #3b82f6;
  background: #eff6ff;
}

.chess-course-wrapper .studio-chess-form .studio-manual[hidden] {
  display: none;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion {
  margin-bottom: 16px;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion h5 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 700;
  color: #1e3a8a;
}

.chess-course-wrapper .studio-chess-form .studio-manual-seccion p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: #334155;
}

.chess-course-wrapper .studio-chess-form .studio-manual-empty {
  margin: 0;
  font-size: 13px;
  color: #64748b;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla th,
.chess-course-wrapper .studio-chess-form .studio-manual-tabla td {
  padding: 6px 10px;
  text-align: left;
  border-bottom: 1px solid #e5e9f0;
  vertical-align: top;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla th {
  background: #f8fafc;
  font-weight: 700;
  color: #334155;
}

.chess-course-wrapper .studio-chess-form .studio-manual-tabla code,
.chess-course-wrapper .studio-chess-form .studio-manual pre code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
}

.chess-course-wrapper .studio-chess-form .studio-manual pre {
  margin: 8px 0 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: #1f2937;
  color: #e5e7eb;
  overflow-x: auto;
  font-size: 12px;
}

.chess-course-wrapper .studio-chess-form #studio-common-fields {
  margin-top: 16px;
}

.chess-course-wrapper .studio-dynamic-form {
  width: 100%;
  min-width: 0;
}

.chess-course-wrapper .studio-dynamic-form *,
.chess-course-wrapper #studio-mode-form * {
  box-sizing: border-box;
}

.chess-course-wrapper .studio-dynamic-form .section,
.chess-course-wrapper #studio-mode-form .section {
  padding: 18px 20px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid #e5e9f0;
  background: #fbfcfe;
}

.chess-course-wrapper .studio-dynamic-form .form-group,
.chess-course-wrapper #studio-mode-form .form-group {
  margin-bottom: 16px;
}

.chess-course-wrapper .studio-dynamic-form .form-group:last-child,
.chess-course-wrapper #studio-mode-form .form-group:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .studio-dynamic-form label,
.chess-course-wrapper #studio-mode-form label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-inline,
.chess-course-wrapper #studio-mode-form label.checkbox-inline {
  font-weight: 500;
  color: #475569;
  background: #ffffff;
  border: 1px solid #e5e9f0;
  border-radius: 8px;
  padding: 9px 12px;
  margin: 0 0 8px 0;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-inline:hover,
.chess-course-wrapper #studio-mode-form label.checkbox-inline:hover {
  border-color: #2171b5;
  background: #f4f9ff;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-inline input,
.chess-course-wrapper #studio-mode-form label.checkbox-inline input {
  margin-right: 8px;
  vertical-align: middle;
  cursor: pointer;
}

.chess-course-wrapper .studio-dynamic-form label.checkbox-block,
.chess-course-wrapper #studio-mode-form label.checkbox-block {
  display: block;
}

.chess-course-wrapper .studio-dynamic-form .form-control,
.chess-course-wrapper #studio-mode-form .form-control {
  display: block;
  width: 100%;
  padding: 9px 12px;
  font-size: 14px;
  color: #1f2937;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  box-shadow: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chess-course-wrapper .studio-dynamic-form .form-control:focus,
.chess-course-wrapper #studio-mode-form .form-control:focus {
  border-color: #2171b5;
  outline: 0;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.15);
}

.chess-course-wrapper .studio-dynamic-form select.form-control,
.chess-course-wrapper #studio-mode-form select.form-control {
  cursor: pointer;
}

.chess-course-wrapper .studio-dynamic-form .form-hint,
.chess-course-wrapper #studio-mode-form .form-hint {
  display: block;
  margin-top: 6px;
  color: #475569;
  font-size: 12px;
  line-height: 1.4;
}

.chess-course-wrapper .studio-dynamic-form .section-title,
.chess-course-wrapper #studio-mode-form .section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #334155;
  text-transform: uppercase;
}

.chess-course-wrapper .studio-dynamic-form .section-title .section-accent,
.chess-course-wrapper #studio-mode-form .section-title .section-accent {
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: linear-gradient(180deg, #2171b5, #10b981);
}

.chess-course-wrapper .studio-dynamic-form .section-desc,
.chess-course-wrapper #studio-mode-form .section-desc {
  margin: 0 0 16px 0;
  color: #475569;
  font-size: 12.5px;
  line-height: 1.4;
  padding-left: 14px;
}

.chess-course-wrapper .studio-dynamic-form .section-subtitle,
.chess-course-wrapper #studio-mode-form .section-subtitle {
  margin: 0 0 16px 0;
  font-size: 13px;
  font-weight: 700;
  color: #334155;
}

.chess-course-wrapper .studio-dynamic-form .section-note,
.chess-course-wrapper #studio-mode-form .section-note {
  margin: 0;
  color: #5b6b7f;
  font-size: 13px;
  line-height: 1.5;
}

.chess-course-wrapper .studio-dynamic-form hr.hr-muted,
.chess-course-wrapper #studio-mode-form hr.hr-muted {
  border: 0;
  border-top: 1px solid #eef1f6;
  margin: 0 0 16px 0;
}

.chess-course-wrapper .studio-chess-form .row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -6px;
  margin-left: -6px;
}

.chess-course-wrapper .studio-chess-form .row > .col-md-4,
.chess-course-wrapper .studio-chess-form .row > .col-md-6,
.chess-course-wrapper .studio-chess-form .row > .col-md-12 {
  padding-right: 6px;
  padding-left: 6px;
}

.chess-course-wrapper .studio-chess-form .col-md-4 {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
}

.chess-course-wrapper .studio-chess-form .col-md-6 {
  flex: 0 0 50%;
  max-width: 50%;
}

.chess-course-wrapper .studio-chess-form .col-md-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

.chess-course-wrapper .studio-category-section {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid #eef1f6;
}

.chess-course-wrapper .studio-category-section:first-of-type {
  margin-top: 8px;
  padding-top: 0;
  border-top: 0;
}

.chess-course-wrapper .studio-category-section > h4 {
  margin: 0 0 10px;
  color: #334155;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.chess-course-wrapper .studio-mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
}

.chess-course-wrapper button.studio-mode-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  padding: 13px 14px;
  color: #334155;
  text-align: left;
  font: inherit;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
}

.chess-course-wrapper button.studio-mode-card:hover {
  border-color: #2171b5;
  background: #f4f9ff;
  box-shadow: 0 3px 10px rgba(33, 113, 181, 0.12);
}

.chess-course-wrapper button.studio-mode-card:active {
  transform: translateY(1px);
}

.chess-course-wrapper button.studio-mode-card:focus-visible {
  outline: 0;
  border-color: #2171b5;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.18);
}

.chess-course-wrapper .studio-mode-card__title,
.chess-course-wrapper .studio-mode-card-title {
  display: block;
  color: #1f2937;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
}

.chess-course-wrapper .studio-mode-card__description,
.chess-course-wrapper .studio-mode-card-description {
  display: block;
  color: #64748b;
  font-size: 12px;
  line-height: 1.4;
}

.chess-course-wrapper .studio-mode-card.is-active,
.chess-course-wrapper button.studio-mode-card[aria-pressed="true"] {
  border-color: #2171b5;
  background: linear-gradient(135deg, #f4f9ff, #ffffff);
  box-shadow: 0 0 0 2px rgba(33, 113, 181, 0.12), 0 4px 12px rgba(33, 113, 181, 0.12);
}

.chess-course-wrapper .studio-mode-card.is-active .studio-mode-card__title,
.chess-course-wrapper .studio-mode-card.is-active .studio-mode-card-title,
.chess-course-wrapper button.studio-mode-card[aria-pressed="true"] .studio-mode-card__title,
.chess-course-wrapper button.studio-mode-card[aria-pressed="true"] .studio-mode-card-title {
  color: #155a94;
}

.chess-course-wrapper #studio-mode-form {
  margin-top: 20px;
}

.chess-course-wrapper #studio-mode-form:empty,
.chess-course-wrapper .studio-dynamic-form:empty {
  display: none;
}

.chess-course-wrapper #studio-form-status {
  min-height: 20px;
  margin-top: 14px;
  color: #475569;
  font-size: 13px;
  line-height: 1.4;
}

.chess-course-wrapper #studio-form-status:empty {
  display: none;
}

.chess-course-wrapper #studio-form-status.is-loading,
.chess-course-wrapper #studio-form-status.loading,
.chess-course-wrapper #studio-form-status[data-state="loading"] {
  color: #8a5a00;
}

.chess-course-wrapper #studio-form-status.is-error,
.chess-course-wrapper #studio-form-status.error,
.chess-course-wrapper #studio-form-status[data-state="error"] {
  color: #b42318;
}

.chess-course-wrapper #studio-form-status.is-success,
.chess-course-wrapper #studio-form-status.success,
.chess-course-wrapper #studio-form-status[data-state="success"] {
  color: #087443;
}

@media (max-width: 767px) {
  .chess-course-wrapper .studio-chess-form .row {
    margin-right: 0;
    margin-left: 0;
  }

  .chess-course-wrapper .studio-chess-form .row > .col-md-4,
.chess-course-wrapper .studio-chess-form .row > .col-md-6,
.chess-course-wrapper .studio-chess-form .row > .col-md-12 {
    flex: 0 0 100%;
    max-width: 100%;
    padding-right: 0;
    padding-left: 0;
  }

  .chess-course-wrapper .studio-mode-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

@media (max-width: 575px) {
  .chess-course-wrapper .studio-chess-form .studio-stepper {
    grid-template-columns: 1fr;
  }

  .chess-course-wrapper .studio-chess-form .studio-settings-header {
    flex-direction: column;
  }

  .chess-course-wrapper .studio-chess-form .form-header,
.chess-course-wrapper .studio-chess-form .form-body,
.chess-course-wrapper .studio-chess-form .form-actions {
    padding-left: 18px;
    padding-right: 18px;
  }

  .chess-course-wrapper .studio-chess-form .form-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .chess-course-wrapper .studio-chess-form .form-actions .btn {
    width: 100%;
  }

  .chess-course-wrapper .studio-category-section {
    margin-top: 18px;
    padding-top: 16px;
  }

  .chess-course-wrapper .studio-mode-grid {
    grid-template-columns: 1fr;
  }

  .chess-course-wrapper .studio-dynamic-form .section,
.chess-course-wrapper #studio-mode-form .section {
    padding: 15px 14px;
  }
}

.chess-course-wrapper {
  max-width: 960px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #2c3e50;
}

.chess-course-wrapper .chess-course-tab-head {
  position: relative;
}

.chess-course-wrapper .chess-course-tab-head .chess-course-modal-close {
  position: absolute;
  top: 0;
  right: 0;
}

.chess-course-wrapper .chess-course-tab-title {
  position: relative;
  margin: 0 0 18px 0;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1f2937;
  text-align: center;
}

.chess-course-wrapper .chess-course-tab-title::after {
  content: '';
  display: block;
  width: 64px;
  height: 3px;
  margin: 8px auto 0;
  border-radius: 2px;
  background: linear-gradient(90deg, #2171b5, #10b981);
}

.chess-course-wrapper .chess-course-tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  padding: 12px;
  background: #f8fafc;
  border-radius: 12px;
  border: 1px solid #e5e9f0;
}

.chess-course-wrapper .course-tab-btn {
  padding: 8px 16px;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  background: #ffffff;
  color: #475569;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chess-course-wrapper .course-tab-btn:hover {
  background: #f1f5f9;
  border-color: #2171b5;
  color: #2171b5;
}

.chess-course-wrapper .course-tab-btn.active {
  background: linear-gradient(135deg, #2171b5, #10b981);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(33, 113, 181, 0.3);
}

.chess-course-wrapper .chess-course-tab-content {
  min-height: 200px;
}

.chess-course-wrapper .course-tab-btn:focus-visible,
.chess-course-wrapper .manual-tab:focus-visible,
.chess-course-wrapper .course-mode-btn:focus-visible,
.chess-course-wrapper .chess-course-modal-close:focus-visible,
.chess-course-wrapper .chess-course-modal-overlay button:focus-visible {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .course-tab-btn.active:focus-visible,
.chess-course-wrapper .course-mode-btn:focus-visible {
  outline-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(33, 113, 181, 0.35);
}

.chess-course-wrapper .course-mode-card:has(.course-mode-btn:focus-visible) {
  outline: 2px solid #2171b5;
  outline-offset: 2px;
}

.chess-course-wrapper .course-cat-panel {
  display: none;
}

.chess-course-wrapper .course-cat-panel.active {
  display: block;
  animation: fadeIn 0.2s ease;
}

.chess-course-wrapper .course-mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.chess-course-wrapper .course-mode-card {
  background: #ffffff;
  border: 1px solid #e5e9f0;
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all 0.15s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.chess-course-wrapper .course-mode-card:hover {
  box-shadow: 0 4px 14px rgba(33, 113, 181, 0.15);
  border-color: #2171b5;
  transform: translateY(-2px);
}

.chess-course-wrapper .course-mode-icon {
  font-size: 1.8rem;
}

.chess-course-wrapper .course-mode-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: #1f2937;
}

.chess-course-wrapper .course-mode-desc {
  font-size: 0.82rem;
  color: #475569;
  line-height: 1.4;
}

.chess-course-wrapper .course-mode-btn {
  margin-top: auto;
  padding: 9px 16px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, #2171b5, #1668a8);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 6px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .course-mode-btn:hover {
  background: linear-gradient(135deg, #1b62a0, #115a94);
  box-shadow: 0 4px 12px rgba(33, 113, 181, 0.35);
  transform: translateY(-1px);
}

.chess-course-wrapper .course-mode-btn:active {
  transform: translateY(0);
}

.chess-course-wrapper .chess-course-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.chess-course-wrapper #exportar-modal {
  max-width: 460px;
  height: auto;
  max-height: 85vh;
}

.chess-course-wrapper #exportar-modal .chess-course-modal-body {
  overflow-y: auto;
  padding: 12px;
}

.chess-course-wrapper #exportar-modal .exportar-bloque {
  border: none;
  padding: 0;
  background: transparent;
}

.chess-course-wrapper .chess-course-modal-overlay[hidden] {
  display: none;
}

.chess-course-wrapper .manual-tabs {
  display: flex;
  gap: 4px;
  margin-right: 12px;
}

.chess-course-wrapper .manual-tab {
  padding: 6px 14px;
  border: 1px solid #e5e9f0;
  border-radius: 8px;
  background: #ffffff;
  color: #64748b;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chess-course-wrapper .manual-tab:hover {
  background: #f1f5f9;
  color: #334155;
}

.chess-course-wrapper .manual-tab.active {
  background: #2171b5;
  color: #ffffff;
  border-color: #2171b5;
}

.chess-course-wrapper .chess-course-modal {
  background: #ffffff;
  border-radius: 16px;
  width: 100%;
  max-width: 640px;
  height: 85vh;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.chess-course-wrapper .chess-course-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #e5e9f0;
  position: sticky;
  top: 0;
  background: #ffffff;
  z-index: 1;
  border-radius: 16px 16px 0 0;
  flex-shrink: 0;
}

.chess-course-wrapper .chess-course-modal-header h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: #1f2937;
}

.chess-course-wrapper .chess-course-modal-close {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: #f1f5f9;
  color: #4b5563;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.chess-course-wrapper .chess-course-modal-close:hover {
  background: #e2e8f0;
  color: #1f2937;
}

.chess-course-wrapper .chess-course-modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1 1 auto;
  min-height: 0;
}

.chess-course-wrapper .chess-course-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid #e5e9f0;
  flex-shrink: 0;
}

.chess-course-wrapper .chess-course-modal-footer .btn-cancel {
  padding: 9px 20px;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  background: #ffffff;
  color: #475569;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chess-course-wrapper .chess-course-modal-footer .btn-cancel:hover {
  background: #f1f5f9;
  border-color: #c3ccda;
}

.chess-course-wrapper .chess-course-modal-footer .btn-save {
  padding: 9px 22px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, #2171b5, #1668a8);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 6px rgba(33, 113, 181, 0.25);
}

.chess-course-wrapper .chess-course-modal-footer .btn-save:hover {
  background: linear-gradient(135deg, #1b62a0, #115a94);
  box-shadow: 0 4px 12px rgba(33, 113, 181, 0.35);
  transform: translateY(-1px);
}

.chess-course-wrapper .manual-body {
  max-height: 80vh;
  overflow-y: auto;
  padding: 16px 18px;
}

.chess-course-wrapper .manual-seccion {
  margin-bottom: 20px;
  padding: 16px 20px;
  border-radius: 10px;
  border: 1px solid #e5e9f0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.chess-course-wrapper .manual-alumno {
  background: #f0fdf4;
  border-left: 4px solid #22c55e;
}

.chess-course-wrapper .manual-pasos {
  margin: 8px 0 0 0;
  padding-left: 22px;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.6;
}

.chess-course-wrapper .manual-pasos li {
  margin-bottom: 6px;
}

.chess-course-wrapper .manual-seccion h4 {
  margin: 0 0 8px 0;
  font-size: 1rem;
  font-weight: 700;
  color: #2171b5;
}

.chess-course-wrapper .manual-seccion p {
  margin: 0;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.5;
}

.chess-course-wrapper .manual-seccion pre {
  background: #f1f5f9;
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  font-size: 0.85rem;
}

.chess-course-wrapper .manual-seccion code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
}

.chess-course-wrapper .manual-tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.chess-course-wrapper .manual-tabla th,
.chess-course-wrapper .manual-tabla td {
  padding: 5px 8px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.chess-course-wrapper .manual-tabla th {
  background: #f8fafc;
  font-weight: 600;
  color: #334155;
}

.chess-course-wrapper .manual-tabla code {
  font-size: 0.8rem;
  background: #f1f5f9;
  padding: 1px 4px;
  border-radius: 3px;
}

.chess-course-wrapper .chess-course-modal-config .course-formulario .section {
  margin-bottom: 20px;
}

.chess-course-wrapper .chess-course-modal-config .course-formulario .section:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .chess-course-modal-config .section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: #1f2937;
}

.chess-course-wrapper .chess-course-modal-config .section-accent {
  flex: 0 0 auto;
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: #2171b5;
}

.chess-course-wrapper .chess-course-modal-config .section-desc,
.chess-course-wrapper .chess-course-modal-config .section-note {
  margin: 0 0 12px;
  font-size: 0.85rem;
  line-height: 1.5;
  color: #5b6b7f;
}

.chess-course-wrapper .chess-course-modal-config .section-subtitle {
  margin: 14px 0 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #334155;
}

.chess-course-wrapper .chess-course-modal-config .row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.chess-course-wrapper .chess-course-modal-config .col-md-4 {
  flex: 1 1 150px;
  min-width: 0;
}

.chess-course-wrapper .chess-course-modal-config .col-md-6 {
  flex: 1 1 220px;
  min-width: 0;
}

.chess-course-wrapper .chess-course-modal-config .form-group {
  display: block;
  margin-bottom: 12px;
}

.chess-course-wrapper .chess-course-modal-config .form-group:last-child {
  margin-bottom: 0;
}

.chess-course-wrapper .chess-course-modal-config .form-group label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
}

.chess-course-wrapper .chess-course-modal-config input[type="checkbox"] + label,
.chess-course-wrapper .chess-course-modal-config label input[type="checkbox"] {
  display: inline-block;
  margin: 0;
  font-weight: 400;
}

.chess-course-wrapper .chess-course-modal-config .hr-muted {
  margin: 16px 0 0;
  border: 0;
  border-top: 1px solid #e2e8f0;
}

.chess-course-wrapper .chess-course-modal-config .course-cargando {
  margin: 0;
  padding: 18px 0;
  color: #5b6b7f;
  font-size: 0.9rem;
  text-align: center;
}

.chess-course-wrapper .form-control {
  display: block;
  width: 100%;
  padding: 9px 12px;
  font-size: 0.9rem;
  color: #1f2937;
  background: #ffffff;
  border: 1px solid #d7dde8;
  border-radius: 8px;
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chess-course-wrapper .form-control:focus {
  border-color: #2171b5;
  outline: 0;
  box-shadow: 0 0 0 3px rgba(33, 113, 181, 0.15);
}

.chess-course-wrapper .form-hint {
  margin: 6px 0 0;
  color: #64748b;
  font-size: 0.8rem;
  line-height: 1.4;
}

@media (max-width: 899px) {
  .chess-course-wrapper .chess-board-holder {
    width: 100%;
  }
}

.chess-course-wrapper .hud-item {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 7px 14px;
  font-size: 1.0rem;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex: 1 1 0;
  min-width: 120px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.chess-course-wrapper .chess-controls {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  margin-bottom: 12px;
}

.chess-course-wrapper .btn-chess {
  border: none;
  border-radius: 8px;
  min-height: 40px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.chess-course-wrapper .btn-chess:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.chess-course-wrapper .btn-hint {
  background: #92400e;
}

.chess-course-wrapper .btn-skip {
  background: #334155;
}

.chess-course-wrapper .btn-start {
  background: linear-gradient(180deg, #047857, #065f46);
  font-size: 1.5rem;
  padding: 14px 40px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

.chess-course-wrapper .grade-status {
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.95rem;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e3a8a;
}

.chess-course-wrapper {
  position: relative;
}

.chess-course-wrapper #game-view {
  display: block;
  position: relative;
}

.chess-course-wrapper #course-tab-view {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  background: #ffffff;
  overflow-y: auto;
  max-height: 100%;
}

.chess-course-wrapper #course-tab-view.hidden {
  display: none;
}

.chess-course-wrapper--panel #game-view {
  display: none;
}

.chess-course-wrapper--panel #course-tab-view {
  position: static;
  max-height: none;
  overflow: visible;
  z-index: auto;
}

.chess-course-wrapper .chess-course-panel-intro {
  margin: -4px 0 18px;
  padding: 10px 14px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 10px;
  color: #14532d;
  font-size: 0.9rem;
  line-height: 1.45;
  text-align: center;
}

.chess-course-wrapper .chess-course-panel-intro[hidden] {
  display: none;
}

@media (max-width: 899px) {
}

.chess-course-wrapper .after\:tw-m-\[8px_auto_0\]::after {
  content: var(--tw-content);
  margin: 8px auto 0;
}

.chess-course-wrapper .after\:tw-block::after {
  content: var(--tw-content);
  display: block;
}

.chess-course-wrapper .after\:tw-h-\[3px\]::after {
  content: var(--tw-content);
  height: 3px;
}

.chess-course-wrapper .after\:tw-w-\[64px\]::after {
  content: var(--tw-content);
  width: 64px;
}

.chess-course-wrapper .after\:tw-rounded-\[2px\]::after {
  content: var(--tw-content);
  border-radius: 2px;
}

.chess-course-wrapper .after\:tw-bg-\[linear-gradient\(90deg\2c \#2171b5\2c \#10b981\)\]::after {
  content: var(--tw-content);
  background-image: linear-gradient(90deg,#2171b5,#10b981);
}

.chess-course-wrapper .after\:tw-content-\[\'\'\]::after {
  --tw-content: '';
  content: var(--tw-content);
}

.chess-course-wrapper .disabled\:tw-cursor-not-allowed:disabled {
  cursor: not-allowed;
}

.chess-course-wrapper .disabled\:tw-opacity-\[0\.45\]:disabled {
  opacity: 0.45;
}

.chess-course-wrapper .disabled\:tw-shadow-none:disabled {
  --tw-shadow: 0 0 #0000;
  --tw-shadow-colored: 0 0 #0000;
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\.active\:focus-visible\]\:tw-shadow-\[0_0_0_4px_rgba\(33\2c 113\2c 181\2c 0\.35\)\].active:focus-visible {
  --tw-shadow: 0 0 0 4px rgba(33,113,181,0.35);
  --tw-shadow-colored: 0 0 0 4px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\.active\:focus-visible\]\:\[outline-color\:\#ffffff\].active:focus-visible {
  outline-color: #ffffff;
}

.chess-course-wrapper .\[\&\.active\]\:tw-block.active {
  display: block;
}

.chess-course-wrapper .\[\&\.active\]\:tw-border-transparent.active {
  border-color: transparent;
}

.chess-course-wrapper .\[\&\.active\]\:tw-bg-\[linear-gradient\(135deg\2c \#2171b5\2c \#10b981\)\].active {
  background-image: linear-gradient(135deg,#2171b5,#10b981);
}

.chess-course-wrapper .\[\&\.active\]\:tw-text-white.active {
  --tw-text-opacity: 1;
  color: rgb(255 255 255 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .\[\&\.active\]\:tw-shadow-\[0_2px_8px_rgba\(33\2c 113\2c 181\2c 0\.3\)\].active {
  --tw-shadow: 0 2px 8px rgba(33,113,181,0.3);
  --tw-shadow-colored: 0 2px 8px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:active\:not\(\:disabled\)\]\:tw-translate-y-0:active:not(:disabled) {
  --tw-translate-y: 0px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:active\:not\(\:disabled\)\]\:tw-shadow-\[0_1px_2px_rgba\(15\2c 23\2c 42\2c 0\.12\)\]:active:not(:disabled) {
  --tw-shadow: 0 1px 2px rgba(15,23,42,0.12);
  --tw-shadow-colored: 0 1px 2px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:active\:not\(\:disabled\)\]\:\[filter\:brightness\(0\.92\)\]:active:not(:disabled) {
  filter: brightness(0.92);
}

.chess-course-wrapper .\[\&\:active\]\:tw-translate-y-0:active {
  --tw-translate-y: 0px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:focus-visible\]\:tw-shadow-\[0_0_0_4px_rgba\(33\2c 113\2c 181\2c 0\.35\)\]:focus-visible {
  --tw-shadow: 0 0 0 4px rgba(33,113,181,0.35);
  --tw-shadow-colored: 0 0 0 4px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline-color\:\#ffffff\]:focus-visible {
  outline-color: #ffffff;
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline-offset\:2px\]:focus-visible {
  outline-offset: 2px;
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline\:2px_solid_\#2171b5\]:focus-visible {
  outline: 2px solid #2171b5;
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline\:2px_solid_\#ffffff\]:focus-visible {
  outline: 2px solid #ffffff;
}

.chess-course-wrapper .\[\&\:has\(\.course-mode-btn\:focus-visible\)\]\:\[outline-offset\:2px\]:has(.course-mode-btn:focus-visible) {
  outline-offset: 2px;
}

.chess-course-wrapper .\[\&\:has\(\.course-mode-btn\:focus-visible\)\]\:\[outline\:2px_solid_\#2171b5\]:has(.course-mode-btn:focus-visible) {
  outline: 2px solid #2171b5;
}

.chess-course-wrapper .\[\&\:hover\:not\(\.active\)\]\:tw-border-\[\#2171b5\]:hover:not(.active) {
  --tw-border-opacity: 1;
  border-color: rgb(33 113 181 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\.active\)\]\:tw-bg-\[\#f1f5f9\]:hover:not(.active) {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\.active\)\]\:tw-text-\[\#2171b5\]:hover:not(.active) {
  --tw-text-opacity: 1;
  color: rgb(33 113 181 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-translate-y-\[-1px\]:hover:not(:disabled) {
  --tw-translate-y: -1px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-bg-\[\#1e293b\]:hover:not(:disabled) {
  --tw-bg-opacity: 1;
  background-color: rgb(30 41 59 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-bg-\[\#78350f\]:hover:not(:disabled) {
  --tw-bg-opacity: 1;
  background-color: rgb(120 53 15 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-bg-\[\#f1f5f9\]:hover:not(:disabled) {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-shadow-\[0_3px_8px_rgba\(15\2c 23\2c 42\2c 0\.18\)\]:hover:not(:disabled) {
  --tw-shadow: 0 3px 8px rgba(15,23,42,0.18);
  --tw-shadow-colored: 0 3px 8px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:hover\]\:tw-translate-y-\[-1px\]:hover {
  --tw-translate-y: -1px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-translate-y-\[-2px\]:hover {
  --tw-translate-y: -2px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-border-\[\#2171b5\]:hover {
  --tw-border-opacity: 1;
  border-color: rgb(33 113 181 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-border-\[\#c3ccda\]:hover {
  --tw-border-opacity: 1;
  border-color: rgb(195 204 218 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-bg-\[\#e2e8f0\]:hover {
  --tw-bg-opacity: 1;
  background-color: rgb(226 232 240 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-bg-\[\#f1f5f9\]:hover {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-bg-\[linear-gradient\(135deg\2c \#1b62a0\2c \#115a94\)\]:hover {
  background-image: linear-gradient(135deg,#1b62a0,#115a94);
}

.chess-course-wrapper .\[\&\:hover\]\:tw-text-\[\#1f2937\]:hover {
  --tw-text-opacity: 1;
  color: rgb(31 41 55 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-shadow-\[0_4px_12px_rgba\(33\2c 113\2c 181\2c 0\.35\)\]:hover {
  --tw-shadow: 0 4px 12px rgba(33,113,181,0.35);
  --tw-shadow-colored: 0 4px 12px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:hover\]\:tw-shadow-\[0_4px_14px_rgba\(33\2c 113\2c 181\2c 0\.15\)\]:hover {
  --tw-shadow: 0 4px 14px rgba(33,113,181,0.15);
  --tw-shadow-colored: 0 4px 14px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\[hidden\]\]\:tw-hidden[hidden] {
  display: none;
}

@media (max-width: 899px) and (min-height: 461px) {
}

@media (min-width: 900px) and (min-height: 480px) {
}

@media (max-width: 899px), (max-height: 479px) {
}

@media (min-width: 900px) and (min-height: 480px) {
}

@media (max-height: 460px) and (orientation: landscape) {
}

@media (max-width: 899px), (max-height: 479px) {
}

@media (prefers-reduced-motion: reduce) {
}

@media (min-width: 900px) and (min-height: 480px) {
}

@media (max-width: 899px), (max-height: 479px) {
}

@media (max-width: 768px) {
}

@media (min-width: 900px) and (min-height: 480px) {
}

@media (max-width: 899px), (max-height: 479px) {
}

@media (min-width: 900px) and (min-height: 480px) {
}

@media (max-width: 899px), (max-height: 479px) {
}

@media (min-width: 900px) and (min-height: 480px) {
}

@media (max-width: 899px), (max-height: 479px) {
}

@media (min-width: 900px) and (min-height: 480px) {
}

@media (max-width: 599px) {
}

@media (max-width: 767px) {
}

@media (max-width: 899px), (max-height: 479px) {
}

@media (max-width: 767px) {
}

@media (max-width: 575px) {
}

@media (max-width: 899px) {
}

@keyframes temporizador-pulso {
  0%, 100% {
    opacity: 1;
  }

  50% {
    opacity: 0.45;
  }
}

@keyframes board-shake {
  0%, 100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-6px);
  }

  40% {
    transform: translateX(6px);
  }

  60% {
    transform: translateX(-4px);
  }

  80% {
    transform: translateX(4px);
  }
}

@keyframes board-glow {
  0% {
    box-shadow: 0 0 0 rgba(16, 185, 129, 0);
  }

  15% {
    box-shadow: 0 0 26px 8px rgba(16, 185, 129, 0.55);
  }

  100% {
    box-shadow: 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes corazon-perdido {
  0%   {
    transform: scale(1.35);
    opacity: 0.6;
  }

  60%  {
    transform: scale(0.9);
    opacity: 1;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes ov-entrar {
  from {
    transform: translateY(-8px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes ov-pulso {
  0% {
    transform: scale(1);
  }

  40% {
    transform: scale(1.02);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.35);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes ov-sacudida {
  0%, 100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-5px);
  }

  40% {
    transform: translateX(5px);
  }

  60% {
    transform: translateX(-3px);
  }

  80% {
    transform: translateX(3px);
  }
}

@keyframes pausa-pulso {
  0%, 100% {
    opacity: 1;
  }

  50% {
    opacity: 0.55;
  }
}

@keyframes foco-latido {
  0%   {
    opacity: 0.15;
    transform: scale(0.94);
  }

  40%  {
    opacity: 0.95;
  }

  100% {
    opacity: 0.15;
    transform: scale(1.02);
  }
}

@keyframes foco-latido-rojo {
  0%   {
    opacity: 0.2;
    transform: scale(0.94);
  }

  40%  {
    opacity: 1;
  }

  100% {
    opacity: 0.2;
    transform: scale(1.04);
  }
}

@keyframes comeback-entra {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
  }

  to   {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes reloj-pulso {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.6;
    transform: scale(1.06);
  }
}

@property --eval-percent {
  syntax: '<percentage>';

  inherits: false;

  initial-value: 50%;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chess-course-wrapper .after\:tw-m-\[8px_auto_0\]::after {
  content: var(--tw-content);
  margin: 8px auto 0;
}

.chess-course-wrapper .after\:tw-block::after {
  content: var(--tw-content);
  display: block;
}

.chess-course-wrapper .after\:tw-h-\[3px\]::after {
  content: var(--tw-content);
  height: 3px;
}

.chess-course-wrapper .after\:tw-w-\[64px\]::after {
  content: var(--tw-content);
  width: 64px;
}

.chess-course-wrapper .after\:tw-rounded-\[2px\]::after {
  content: var(--tw-content);
  border-radius: 2px;
}

.chess-course-wrapper .after\:tw-bg-\[linear-gradient\(90deg\2c \#2171b5\2c \#10b981\)\]::after {
  content: var(--tw-content);
  background-image: linear-gradient(90deg,#2171b5,#10b981);
}

.chess-course-wrapper .after\:tw-content-\[\'\'\]::after {
  --tw-content: '';
  content: var(--tw-content);
}

.chess-course-wrapper .disabled\:tw-cursor-not-allowed:disabled {
  cursor: not-allowed;
}

.chess-course-wrapper .disabled\:tw-opacity-\[0\.45\]:disabled {
  opacity: 0.45;
}

.chess-course-wrapper .disabled\:tw-shadow-none:disabled {
  --tw-shadow: 0 0 #0000;
  --tw-shadow-colored: 0 0 #0000;
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\.active\:focus-visible\]\:tw-shadow-\[0_0_0_4px_rgba\(33\2c 113\2c 181\2c 0\.35\)\].active:focus-visible {
  --tw-shadow: 0 0 0 4px rgba(33,113,181,0.35);
  --tw-shadow-colored: 0 0 0 4px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\.active\:focus-visible\]\:\[outline-color\:\#ffffff\].active:focus-visible {
  outline-color: #ffffff;
}

.chess-course-wrapper .\[\&\.active\]\:tw-block.active {
  display: block;
}

.chess-course-wrapper .\[\&\.active\]\:tw-border-transparent.active {
  border-color: transparent;
}

.chess-course-wrapper .\[\&\.active\]\:tw-bg-\[linear-gradient\(135deg\2c \#2171b5\2c \#10b981\)\].active {
  background-image: linear-gradient(135deg,#2171b5,#10b981);
}

.chess-course-wrapper .\[\&\.active\]\:tw-text-white.active {
  --tw-text-opacity: 1;
  color: rgb(255 255 255 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .\[\&\.active\]\:tw-shadow-\[0_2px_8px_rgba\(33\2c 113\2c 181\2c 0\.3\)\].active {
  --tw-shadow: 0 2px 8px rgba(33,113,181,0.3);
  --tw-shadow-colored: 0 2px 8px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:active\:not\(\:disabled\)\]\:tw-translate-y-0:active:not(:disabled) {
  --tw-translate-y: 0px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:active\:not\(\:disabled\)\]\:tw-shadow-\[0_1px_2px_rgba\(15\2c 23\2c 42\2c 0\.12\)\]:active:not(:disabled) {
  --tw-shadow: 0 1px 2px rgba(15,23,42,0.12);
  --tw-shadow-colored: 0 1px 2px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:active\:not\(\:disabled\)\]\:\[filter\:brightness\(0\.92\)\]:active:not(:disabled) {
  filter: brightness(0.92);
}

.chess-course-wrapper .\[\&\:active\]\:tw-translate-y-0:active {
  --tw-translate-y: 0px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:focus-visible\]\:tw-shadow-\[0_0_0_4px_rgba\(33\2c 113\2c 181\2c 0\.35\)\]:focus-visible {
  --tw-shadow: 0 0 0 4px rgba(33,113,181,0.35);
  --tw-shadow-colored: 0 0 0 4px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline-color\:\#ffffff\]:focus-visible {
  outline-color: #ffffff;
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline-offset\:2px\]:focus-visible {
  outline-offset: 2px;
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline\:2px_solid_\#2171b5\]:focus-visible {
  outline: 2px solid #2171b5;
}

.chess-course-wrapper .\[\&\:focus-visible\]\:\[outline\:2px_solid_\#ffffff\]:focus-visible {
  outline: 2px solid #ffffff;
}

.chess-course-wrapper .\[\&\:has\(\.course-mode-btn\:focus-visible\)\]\:\[outline-offset\:2px\]:has(.course-mode-btn:focus-visible) {
  outline-offset: 2px;
}

.chess-course-wrapper .\[\&\:has\(\.course-mode-btn\:focus-visible\)\]\:\[outline\:2px_solid_\#2171b5\]:has(.course-mode-btn:focus-visible) {
  outline: 2px solid #2171b5;
}

.chess-course-wrapper .\[\&\:hover\:not\(\.active\)\]\:tw-border-\[\#2171b5\]:hover:not(.active) {
  --tw-border-opacity: 1;
  border-color: rgb(33 113 181 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\.active\)\]\:tw-bg-\[\#f1f5f9\]:hover:not(.active) {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\.active\)\]\:tw-text-\[\#2171b5\]:hover:not(.active) {
  --tw-text-opacity: 1;
  color: rgb(33 113 181 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-translate-y-\[-1px\]:hover:not(:disabled) {
  --tw-translate-y: -1px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-bg-\[\#1e293b\]:hover:not(:disabled) {
  --tw-bg-opacity: 1;
  background-color: rgb(30 41 59 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-bg-\[\#78350f\]:hover:not(:disabled) {
  --tw-bg-opacity: 1;
  background-color: rgb(120 53 15 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-bg-\[\#f1f5f9\]:hover:not(:disabled) {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\:not\(\:disabled\)\]\:tw-shadow-\[0_3px_8px_rgba\(15\2c 23\2c 42\2c 0\.18\)\]:hover:not(:disabled) {
  --tw-shadow: 0 3px 8px rgba(15,23,42,0.18);
  --tw-shadow-colored: 0 3px 8px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:hover\]\:tw-translate-y-\[-1px\]:hover {
  --tw-translate-y: -1px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-translate-y-\[-2px\]:hover {
  --tw-translate-y: -2px;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-border-\[\#2171b5\]:hover {
  --tw-border-opacity: 1;
  border-color: rgb(33 113 181 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-border-\[\#c3ccda\]:hover {
  --tw-border-opacity: 1;
  border-color: rgb(195 204 218 / var(--tw-border-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-bg-\[\#e2e8f0\]:hover {
  --tw-bg-opacity: 1;
  background-color: rgb(226 232 240 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-bg-\[\#f1f5f9\]:hover {
  --tw-bg-opacity: 1;
  background-color: rgb(241 245 249 / var(--tw-bg-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-bg-\[linear-gradient\(135deg\2c \#1b62a0\2c \#115a94\)\]:hover {
  background-image: linear-gradient(135deg,#1b62a0,#115a94);
}

.chess-course-wrapper .\[\&\:hover\]\:tw-text-\[\#1f2937\]:hover {
  --tw-text-opacity: 1;
  color: rgb(31 41 55 / var(--tw-text-opacity, 1));
}

.chess-course-wrapper .\[\&\:hover\]\:tw-shadow-\[0_4px_12px_rgba\(33\2c 113\2c 181\2c 0\.35\)\]:hover {
  --tw-shadow: 0 4px 12px rgba(33,113,181,0.35);
  --tw-shadow-colored: 0 4px 12px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\:hover\]\:tw-shadow-\[0_4px_14px_rgba\(33\2c 113\2c 181\2c 0\.15\)\]:hover {
  --tw-shadow: 0 4px 14px rgba(33,113,181,0.15);
  --tw-shadow-colored: 0 4px 14px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}

.chess-course-wrapper .\[\&\[hidden\]\]\:tw-hidden[hidden] {
  display: none;
}