/* ============================================================
   Aacrom Runtime — Estilos base
   Plantilla SCORM v1.0
   ============================================================
   Convenciones:
   - Variables CSS personalizadas (custom properties) para temas.
   - BEM con prefijo aacrom- para evitar colisiones con LMS.
   - Mobile-first con breakpoints en 480, 768, 992, 1200, 1440 px.
   - Modo claro/oscuro mediante [data-theme="dark"].
   ============================================================ */

/* ---------------------------------------------------------
   1. Variables base (modo claro)
   --------------------------------------------------------- */

:root {
  /* Tema institucional (sobreescribibles por course.json) */
  --color-theme: #1F3864;
  --color-theme-contrast: #FFFFFF;
  --color-accent: #2E5496;

  /* Fondos y texto */
  --color-background: #FFFFFF;
  --color-background-alt: #F8F9FA;
  --color-text: #202020;
  --color-text-muted: #595959;
  --color-heading: #1F3864;

  /* Bordes y separadores */
  --color-border: #E0E0E0;
  --color-divider: #CCCCCC;

  /* Estados */
  --color-success: #28A745;
  --color-warning: #F0B400;
  --color-error: #DC143C;
  --color-info: #5B9BD5;

  /* Bloques específicos */
  --color-statement-bg: #F0F4F8;
  --color-quote-bg: #FFF4CC;
  --color-surface-alt: #F0F4F8;
  --color-success: #16A34A;
  --color-success-bg: #DCFCE7;
  --color-success-text: #166534;
  --color-danger: #DC2626;
  --color-danger-bg: #FEE2E2;
  --color-danger-text: #991B1B;
  /* Texto con color de acento. En modo claro = accent. En modo oscuro
     se reemplaza por una versión aclarada para mantener legibilidad. */
  --color-accent-text: var(--color-theme);
  --color-knowledge-check-bg: #E8F4F8;
  --color-placeholder-bg: #F5F5F5;
  --color-placeholder-border: #CCCCCC;

  /* Tipografía */
  --font-family-base: "Lato", "Helvetica Neue", Arial, sans-serif;
  --font-family-heading: "Lato", "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: "Consolas", "Monaco", monospace;

  --font-size-base: 16px;
  --font-size-h1: 2.0rem;
  --font-size-h2: 1.6rem;
  --font-size-h3: 1.3rem;
  --font-size-small: 0.875rem;

  --font-weight-normal: 400;
  --font-weight-medium: 600;
  --font-weight-bold: 700;

  --line-height-base: 1.6;
  --line-height-heading: 1.3;

  /* Espaciado (sistema 8px) */
  --spacing-xs: 0.5rem;   /* 8px */
  --spacing-sm: 1rem;     /* 16px */
  --spacing-md: 1.5rem;   /* 24px */
  --spacing-lg: 2rem;     /* 32px */
  --spacing-xl: 3rem;     /* 48px */
  --spacing-xxl: 4rem;    /* 64px */

  --block-padding: var(--spacing-md);
  --block-margin: var(--spacing-lg);

  /* Bordes y sombras */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

  /* Layout */
  --header-height: 64px;
  --sidebar-width: 320px;
  --max-content-width: 800px;

  /* Transiciones */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* ---------------------------------------------------------
   2. Modo oscuro
   --------------------------------------------------------- */

[data-theme="dark"] {
  --color-background: #1A1A1A;
  --color-background-alt: #242424;
  --color-text: #E8E8E8;
  --color-text-muted: #A0A0A0;
  --color-heading: #FFFFFF;
  --color-border: #404040;
  --color-divider: #303030;
  --color-statement-bg: #2A2F35;
  --color-quote-bg: #3D3623;
  --color-knowledge-check-bg: #1F2D33;
  --color-placeholder-bg: #2A2A2A;
  --color-placeholder-border: #444444;
  /* Superficie alternativa (fondos de hover, contenedores secundarios,
     fondo del impact-note y similares). Crítico que esté definida en
     modo oscuro para que el contraste funcione. */
  --color-surface-alt: #2A2F35;
  /* Estados de éxito/error en modo oscuro: tonos más apagados para no
     herir la vista, manteniendo legibilidad WCAG. */
  --color-success: #4ADE80;
  --color-success-bg: rgba(74, 222, 128, 0.12);
  --color-success-text: #86EFAC;
  --color-danger: #F87171;
  --color-danger-bg: rgba(248, 113, 113, 0.12);
  --color-danger-text: #FCA5A5;
  /* Versión aclarada del accent para texto en modo oscuro.
     Usa color-mix (CSS moderno) para mezclar el accent con blanco al 70%.
     Fallback: si el navegador no soporta color-mix, queda el #80B0FF. */
  --color-accent-text: #80B0FF;
  --color-accent-text: color-mix(in srgb, var(--color-theme) 30%, white);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

/* ---------------------------------------------------------
   3. Reset minimal y base
   --------------------------------------------------------- */

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
}

button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-theme);
  outline-offset: 2px;
}

/* ---------------------------------------------------------
   4. App container
   --------------------------------------------------------- */

.aacrom-app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--color-background);
  color: var(--color-text);
}

/* ---------------------------------------------------------
   5. Header
   --------------------------------------------------------- */

.aacrom-header {
  display: flex;
  align-items: center;
  height: var(--header-height);
  padding: 0 var(--spacing-sm);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  z-index: 30;
}

.aacrom-header__toggle {
  background: transparent;
  border: 0;
  color: inherit;
  font-size: 1.5rem;
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-sm);
  margin-right: var(--spacing-sm);
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  transition: background var(--transition-fast);
}

/* Solo visible en mobile, donde el sidebar es overlay */
@media (max-width: 767px) {
  .aacrom-header__toggle {
    display: flex;
  }
}

.aacrom-header__toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.aacrom-header__title {
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
  margin: 0;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: inherit;
}

.aacrom-header__theme-toggle {
  background: transparent;
  border: 0;
  color: inherit;
  font-size: 1.3rem;
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  transition: background var(--transition-fast);
}

.aacrom-header__theme-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.aacrom-header__theme-icon {
  display: none;
}

[data-theme="light"] .aacrom-header__theme-icon--dark { display: inline; }
[data-theme="dark"] .aacrom-header__theme-icon--light { display: inline; }

/* ---------------------------------------------------------
   6. Main layout
   --------------------------------------------------------- */

.aacrom-main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ---------------------------------------------------------
   7. Sidebar
   --------------------------------------------------------- */

.aacrom-sidebar {
  width: var(--sidebar-width);
  background: var(--color-background-alt);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.aacrom-sidebar__progress {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.aacrom-progress {
  height: 8px;
  background: var(--color-border);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.aacrom-progress__bar {
  height: 100%;
  background: var(--color-theme);
  transition: width var(--transition-base);
}

.aacrom-progress__label {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  text-align: center;
}

.aacrom-sidebar__nav {
  padding: var(--spacing-sm) 0;
  flex: 1;
}

.aacrom-lesson-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.aacrom-lesson-list__item {
  border-bottom: 1px solid var(--color-divider);
}

.aacrom-lesson-list__link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: 0;
  color: var(--color-text);
  text-align: left;
  font-size: 0.95rem;
  transition: background var(--transition-fast);
}

.aacrom-lesson-list__link:hover {
  background: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .aacrom-lesson-list__link:hover {
  background: rgba(255, 255, 255, 0.06);
}

.aacrom-lesson-list__item--active .aacrom-lesson-list__link {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  font-weight: var(--font-weight-medium);
}

.aacrom-lesson-list__item--completed .aacrom-lesson-list__number::before {
  content: "✓ ";
  color: var(--color-success);
}

.aacrom-lesson-list__item--active.aacrom-lesson-list__item--completed
  .aacrom-lesson-list__number::before {
  color: inherit;
}

.aacrom-lesson-list__number {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: var(--font-weight-medium);
}

.aacrom-lesson-list__item--active .aacrom-lesson-list__number {
  background: rgba(255, 255, 255, 0.25);
  color: inherit;
}

.aacrom-lesson-list__title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------------------------------------------------------
   8. Content area
   --------------------------------------------------------- */

.aacrom-content {
  flex: 1;
  overflow-y: auto;
  outline: none;
  display: flex;
  flex-direction: column;
}

.aacrom-content:focus {
  outline: none;
}

.aacrom-lesson-container {
  max-width: var(--max-content-width);
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  flex: 1;
}

/* ---------------------------------------------------------
   9. Lesson header
   --------------------------------------------------------- */

.aacrom-lesson-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-theme);
}

.aacrom-lesson-header__title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  margin: 0;
  line-height: var(--line-height-heading);
}

/* ---------------------------------------------------------
   10. Bloques (placeholder genérico)
   --------------------------------------------------------- */

.aacrom-block {
  margin-bottom: var(--block-margin);
}

.aacrom-block--placeholder,
.aacrom-block--quiz-placeholder {
  background: var(--color-placeholder-bg);
  border: 2px dashed var(--color-placeholder-border);
  border-radius: var(--border-radius-md);
  padding: var(--block-padding);
}

.aacrom-block__placeholder {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  color: var(--color-text-muted);
}

.aacrom-block__placeholder strong {
  color: var(--color-text);
  font-family: var(--font-family-mono);
  font-size: 0.95rem;
}

.aacrom-block__placeholder small {
  font-size: var(--font-size-small);
}

/* ---------------------------------------------------------
   11. Lesson navigation (prev / next)
   --------------------------------------------------------- */

.aacrom-lesson-nav {
  max-width: var(--max-content-width);
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

.aacrom-lesson-nav__btn {
  min-width: 140px;
}

/* ---------------------------------------------------------
   12. Buttons
   --------------------------------------------------------- */

.aacrom-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  border: 0;
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.aacrom-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.aacrom-btn--primary {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
}

.aacrom-btn--primary:not(:disabled):hover {
  background: var(--color-accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.aacrom-btn--secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.aacrom-btn--secondary:not(:disabled):hover {
  background: var(--color-background-alt);
  border-color: var(--color-theme);
}

/* ---------------------------------------------------------
   13. Error state
   --------------------------------------------------------- */

.aacrom-error {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-background);
  color: var(--color-text);
  padding: var(--spacing-xl);
  text-align: center;
  z-index: 100;
}

.aacrom-error--hidden { display: none; }

.aacrom-error__title {
  color: var(--color-error);
  font-size: var(--font-size-h2);
  margin-bottom: var(--spacing-md);
}

.aacrom-error__message {
  font-size: 1rem;
  max-width: 600px;
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------
   14. Responsive: mobile (< 768px)
   --------------------------------------------------------- */

@media (max-width: 767px) {
  .aacrom-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: 280px;
    transform: translateX(-100%);
    z-index: 20;
    box-shadow: var(--shadow-lg);
  }

  .aacrom-sidebar--open {
    transform: translateX(0);
  }

  /* Backdrop oscuro detrás del sidebar abierto. Click cierra. */
  .aacrom-sidebar-backdrop {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 15;
    opacity: 0;
    transition: opacity 0.25s ease;
  }
  .aacrom-sidebar-backdrop--visible {
    opacity: 1;
  }

  .aacrom-lesson-container {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .aacrom-lesson-nav {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .aacrom-lesson-header__title {
    font-size: 1.5rem;
  }

  :root {
    --font-size-h1: 1.5rem;
    --font-size-h2: 1.3rem;
    --font-size-h3: 1.1rem;
  }
}

/* ---------------------------------------------------------
   15. Responsive: tablet (768px - 991px)
   --------------------------------------------------------- */

@media (min-width: 768px) and (max-width: 991px) {
  :root {
    --sidebar-width: 280px;
  }
}

/* ---------------------------------------------------------
   16. Responsive: desktop grande (≥ 1200px)
   --------------------------------------------------------- */

@media (min-width: 1200px) {
  :root {
    --max-content-width: 900px;
  }
}

/* ---------------------------------------------------------
   17. Print
   --------------------------------------------------------- */

@media print {
  .aacrom-header,
  .aacrom-sidebar,
  .aacrom-lesson-nav {
    display: none !important;
  }

  .aacrom-content {
    overflow: visible;
  }

  .aacrom-lesson-container {
    max-width: 100%;
    padding: 0;
  }
}

/* =========================================================
   COMPONENTES — Sub-etapa 3.2
   ========================================================= */

/* ---------------------------------------------------------
   text-heading
   --------------------------------------------------------- */

.aacrom-block-text-heading {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.aacrom-block-text-heading__title {
  font-family: var(--font-family-heading);
  color: var(--color-heading);
  margin: 0;
  line-height: var(--line-height-heading);
  font-weight: var(--font-weight-bold);
}

.aacrom-block-text-heading__title--level-1 {
  font-size: var(--font-size-h1);
  border-bottom: 2px solid var(--color-theme);
  padding-bottom: var(--spacing-xs);
}

.aacrom-block-text-heading__title--level-2 {
  font-size: var(--font-size-h2);
}

.aacrom-block-text-heading__title--level-3 {
  font-size: var(--font-size-h3);
}

.aacrom-block-text-heading__title--align-left {
  text-align: left;
}

.aacrom-block-text-heading__title--align-center {
  text-align: center;
}

.aacrom-block-text-heading__title--align-right {
  text-align: right;
}

/* Reducir margen superior si el heading es el primer bloque */
.aacrom-lesson-container > .aacrom-block-text-heading:first-child {
  margin-top: 0;
}

/* ---------------------------------------------------------
   text-paragraph
   --------------------------------------------------------- */

.aacrom-block-text-paragraph {
  margin-bottom: var(--block-margin);
}

.aacrom-block-text-paragraph__content p {
  font-size: 1rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
  margin: 0 0 var(--spacing-sm) 0;
}

.aacrom-block-text-paragraph__content p:last-child {
  margin-bottom: 0;
}

.aacrom-block-text-paragraph__content strong,
.aacrom-block-text-paragraph__content b {
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
}

.aacrom-block-text-paragraph__content em,
.aacrom-block-text-paragraph__content i {
  font-style: italic;
}

.aacrom-block-text-paragraph__content u {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.aacrom-block-text-paragraph__content mark {
  background: var(--color-quote-bg);
  color: var(--color-text);
  padding: 0 0.2em;
  border-radius: 2px;
}

.aacrom-block-text-paragraph__content a {
  color: var(--color-accent-text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.aacrom-block-text-paragraph__content a:hover {
  color: var(--color-accent);
  text-decoration-thickness: 2px;
}

.aacrom-block-text-paragraph__content ul,
.aacrom-block-text-paragraph__content ol {
  margin: 0 0 var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

.aacrom-block-text-paragraph__content li {
  margin-bottom: var(--spacing-xs);
  line-height: var(--line-height-base);
}

.aacrom-block-text-paragraph__content li:last-child {
  margin-bottom: 0;
}

/* ---------------------------------------------------------
   multimedia-image
   --------------------------------------------------------- */

.aacrom-block-multimedia-image {
  margin-bottom: var(--block-margin);
}

.aacrom-block-multimedia-image__figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.aacrom-block-multimedia-image__img {
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  display: block;
  max-width: 100%;
  height: auto;
}

.aacrom-block-multimedia-image__caption {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  text-align: center;
  font-style: italic;
  line-height: 1.4;
}

.aacrom-block-multimedia-image__error {
  background: var(--color-placeholder-bg);
  border: 2px dashed var(--color-error);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  color: var(--color-error);
  font-size: var(--font-size-small);
  text-align: center;
  width: 100%;
}

/* Tamaños */
.aacrom-block-multimedia-image--size-small .aacrom-block-multimedia-image__img {
  max-width: 300px;
}
.aacrom-block-multimedia-image--size-medium .aacrom-block-multimedia-image__img {
  max-width: 500px;
}
.aacrom-block-multimedia-image--size-large .aacrom-block-multimedia-image__img {
  max-width: 700px;
}
.aacrom-block-multimedia-image--size-full .aacrom-block-multimedia-image__img {
  max-width: 100%;
}

/* Alineación */
.aacrom-block-multimedia-image--align-left .aacrom-block-multimedia-image__figure {
  align-items: flex-start;
}
.aacrom-block-multimedia-image--align-center .aacrom-block-multimedia-image__figure {
  align-items: center;
}
.aacrom-block-multimedia-image--align-right .aacrom-block-multimedia-image__figure {
  align-items: flex-end;
}

/* ---------------------------------------------------------
   divider-continue
   --------------------------------------------------------- */

.aacrom-block-divider-continue {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg);
  background: var(--color-background-alt);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  text-align: center;
}

.aacrom-block-divider-continue__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.aacrom-block-divider-continue__title {
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-heading);
}

.aacrom-block-divider-continue__btn {
  min-width: 200px;
  padding: 0.875rem 2rem;
  font-size: 1rem;
}

.aacrom-block-divider-continue__btn--clicked {
  transform: scale(0.96);
  transition: transform 0.1s ease;
}

.aacrom-block-divider-continue__hint {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------
   multimedia-audio
   --------------------------------------------------------- */

.aacrom-block-multimedia-audio {
  margin-bottom: var(--block-margin);
}

.aacrom-block-multimedia-audio__wrapper {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
}

.aacrom-block-multimedia-audio__player {
  width: 100%;
  height: 44px;
  outline: none;
}

.aacrom-block-multimedia-audio__caption {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.4;
}

.aacrom-block-multimedia-audio__error {
  background: var(--color-placeholder-bg);
  border: 1px dashed var(--color-error);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm);
  color: var(--color-error);
  font-size: var(--font-size-small);
  margin-bottom: var(--spacing-sm);
}

.aacrom-block-multimedia-audio__transcription {
  margin-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-sm);
}

.aacrom-block-multimedia-audio__transcription-toggle {
  cursor: pointer;
  font-size: var(--font-size-small);
  color: var(--color-accent-text);
  font-weight: var(--font-weight-medium);
  list-style: none;
  user-select: none;
}

.aacrom-block-multimedia-audio__transcription-toggle::before {
  content: "▸ ";
  display: inline-block;
  transition: transform var(--transition-fast);
}

.aacrom-block-multimedia-audio__transcription[open] .aacrom-block-multimedia-audio__transcription-toggle::before {
  transform: rotate(90deg);
}

.aacrom-block-multimedia-audio__transcription-text {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-background);
  border-radius: var(--border-radius-sm);
  font-size: 0.95rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
}

/* ---------------------------------------------------------
   multimedia-video
   --------------------------------------------------------- */

.aacrom-block-multimedia-video {
  margin-bottom: var(--block-margin);
}

.aacrom-block-multimedia-video__wrapper {
  background: var(--color-background-alt);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.aacrom-block-multimedia-video__aspect {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 default */
  background: #000;
  overflow: hidden;
}

.aacrom-block-multimedia-video__player {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  outline: none;
}

.aacrom-block-multimedia-video__caption {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.4;
  border-top: 1px solid var(--color-border);
  background: var(--color-background-alt);
}

.aacrom-block-multimedia-video__error {
  background: var(--color-placeholder-bg);
  border: 1px dashed var(--color-error);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-md);
  margin: var(--spacing-sm);
  color: var(--color-error);
  font-size: var(--font-size-small);
  text-align: center;
}

.aacrom-block-multimedia-video__transcription {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background-alt);
}

.aacrom-block-multimedia-video__transcription-toggle {
  cursor: pointer;
  font-size: var(--font-size-small);
  color: var(--color-accent-text);
  font-weight: var(--font-weight-medium);
  list-style: none;
  user-select: none;
}

.aacrom-block-multimedia-video__transcription-toggle::before {
  content: "▸ ";
  display: inline-block;
  transition: transform var(--transition-fast);
}

.aacrom-block-multimedia-video__transcription[open] .aacrom-block-multimedia-video__transcription-toggle::before {
  transform: rotate(90deg);
}

.aacrom-block-multimedia-video__transcription-text {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-background);
  border-radius: var(--border-radius-sm);
  font-size: 0.95rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
}

/* ---------------------------------------------------------
   Quiz Engine
   --------------------------------------------------------- */

.aacrom-quiz-container {
  max-width: 100%;
}

.aacrom-quiz {
  width: 100%;
}

.aacrom-quiz__header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.aacrom-quiz__progress {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}

.aacrom-quiz__progress-current {
  color: var(--color-accent-text);
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
}

.aacrom-quiz__progress-total {
  font-weight: var(--font-weight-medium);
}

.aacrom-quiz__card {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.aacrom-quiz__question {
  font-size: 1.1rem;
  line-height: var(--line-height-base);
  color: var(--color-heading);
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
}

.aacrom-quiz__question p {
  margin: 0 0 var(--spacing-xs) 0;
}

.aacrom-quiz__hint {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--spacing-md);
}

.aacrom-quiz__answers {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.aacrom-quiz__answer {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.aacrom-quiz__answer:hover:not(.aacrom-quiz__answer--reviewed) {
  border-color: var(--color-theme);
  background: var(--color-background-alt);
}

.aacrom-quiz__answer-input {
  margin-top: 0.2em;
  cursor: pointer;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  accent-color: var(--color-theme);
}

.aacrom-quiz__answer-content {
  flex: 1;
  font-size: 1rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
}

/* Estados después de validar */
.aacrom-quiz__answer--reviewed {
  cursor: default;
}

.aacrom-quiz__answer--correct {
  border-color: var(--color-success);
  background: rgba(40, 167, 69, 0.08);
}

.aacrom-quiz__answer--wrong {
  border-color: var(--color-error);
  background: rgba(220, 20, 60, 0.08);
}

.aacrom-quiz__answer--selected-correct {
  border-color: var(--color-success);
  background: rgba(40, 167, 69, 0.15);
}

[data-theme="dark"] .aacrom-quiz__answer--correct {
  background: rgba(40, 167, 69, 0.15);
}

[data-theme="dark"] .aacrom-quiz__answer--wrong {
  background: rgba(220, 20, 60, 0.15);
}

[data-theme="dark"] .aacrom-quiz__answer--selected-correct {
  background: rgba(40, 167, 69, 0.25);
}

/* Feedback */
.aacrom-quiz__feedback {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  animation: aacrom-fadein 0.3s ease;
}

.aacrom-quiz__feedback--hidden {
  display: none;
}

.aacrom-quiz__feedback--correct {
  background: rgba(40, 167, 69, 0.12);
  color: var(--color-text);
  border-left: 4px solid var(--color-success);
}

.aacrom-quiz__feedback--incorrect {
  background: rgba(220, 20, 60, 0.12);
  color: var(--color-text);
  border-left: 4px solid var(--color-error);
}

.aacrom-quiz__feedback-icon {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  flex-shrink: 0;
}

.aacrom-quiz__feedback--correct .aacrom-quiz__feedback-icon {
  color: var(--color-success);
}

.aacrom-quiz__feedback--incorrect .aacrom-quiz__feedback-icon {
  color: var(--color-error);
}

.aacrom-quiz__feedback-text {
  flex: 1;
  font-size: 0.95rem;
  line-height: var(--line-height-base);
}

@keyframes aacrom-fadein {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Acciones */
.aacrom-quiz__actions {
  display: flex;
  justify-content: flex-end;
}

.aacrom-quiz__actions .aacrom-btn {
  min-width: 180px;
}

/* Resultados */
.aacrom-quiz__results {
  background: var(--color-background-alt);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.aacrom-quiz__results--passed {
  border-color: var(--color-success);
}

.aacrom-quiz__results--failed {
  border-color: var(--color-error);
}

.aacrom-quiz__results-icon {
  font-size: 4rem;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.aacrom-quiz__results--passed .aacrom-quiz__results-icon {
  color: var(--color-success);
}

.aacrom-quiz__results--failed .aacrom-quiz__results-icon {
  color: var(--color-error);
}

.aacrom-quiz__results-title {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  margin: 0 0 var(--spacing-md) 0;
}

.aacrom-quiz__results-score {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.aacrom-quiz__results-score-value {
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  line-height: 1;
}

.aacrom-quiz__results-score-detail {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.aacrom-quiz__results-info {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-base);
}

.aacrom-quiz__results-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
}

.aacrom-quiz__error {
  padding: var(--spacing-md);
  background: var(--color-placeholder-bg);
  border: 1px dashed var(--color-error);
  border-radius: var(--border-radius-md);
  color: var(--color-error);
  text-align: center;
}

/* Responsive quiz */
@media (max-width: 767px) {
  .aacrom-quiz__card {
    padding: var(--spacing-md);
  }
  .aacrom-quiz__results {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  .aacrom-quiz__results-score-value {
    font-size: 2.5rem;
  }
}

/* =========================================================
   COMPONENTES — Sub-etapa 3.4
   ========================================================= */

/* ---------------------------------------------------------
   interactive-labeled-graphic
   --------------------------------------------------------- */

.aacrom-block-labeled-graphic {
  margin-bottom: var(--block-margin);
}

.aacrom-labeled-graphic {
  position: relative;
  width: 100%;
  background: var(--color-background-alt);
  border-radius: var(--border-radius-md);
  /* Sin overflow:hidden a nivel exterior — el panel puede ser más alto que la imagen.
     El __image-wrap interior sí mantiene overflow:hidden para que la imagen y los
     marcadores estén bien recortados. */
  box-shadow: var(--shadow-sm);
}

.aacrom-labeled-graphic__image-wrap {
  position: relative;
  width: 100%;
  /* aspect ratio se aplica vía JS según width/height de la imagen */
  background: var(--color-background-alt);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.aacrom-labeled-graphic__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.aacrom-labeled-graphic__error {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-placeholder-bg);
  color: var(--color-error);
  padding: var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-small);
}

.aacrom-labeled-graphic__markers {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.aacrom-labeled-graphic__marker {
  position: absolute;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid #fff;
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  cursor: pointer;
  transform: translate(-50%, -50%);
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: var(--font-weight-bold);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: all var(--transition-fast);
  padding: 0;
  z-index: 2;
}

.aacrom-labeled-graphic__marker::before {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid var(--color-theme);
  opacity: 0.6;
  animation: aacrom-marker-pulse 2s ease-in-out infinite;
  pointer-events: none;
}

@keyframes aacrom-marker-pulse {
  0% { transform: scale(0.8); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 0; }
  100% { transform: scale(0.8); opacity: 0; }
}

.aacrom-labeled-graphic__marker:hover {
  transform: translate(-50%, -50%) scale(1.15);
}

.aacrom-labeled-graphic__marker--active {
  background: var(--color-accent);
  transform: translate(-50%, -50%) scale(1.15);
}

.aacrom-labeled-graphic__marker--active::before {
  animation: none;
  opacity: 1;
  border-color: var(--color-accent);
}

.aacrom-labeled-graphic__marker:focus-visible {
  outline: 3px solid var(--color-warning);
  outline-offset: 2px;
}

.aacrom-labeled-graphic__marker-number {
  display: block;
  line-height: 1;
}

/* Panel del marcador — modo flotante (desktop) */
.aacrom-labeled-graphic__panel {
  position: absolute;
  background: var(--color-background);
  border-radius: var(--border-radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--color-border);
  z-index: 10;
  display: none;
  flex-direction: column;
  /* Animación: fade + escala (parece "aparecer" cerca del marcador) */
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.aacrom-labeled-graphic__panel--open {
  display: flex;
  opacity: 1;
  transform: scale(1);
}

/* En modo flotante (desktop), tamaño dinámico según contenido */
.aacrom-labeled-graphic__panel--floating {
  width: 320px;
  max-width: 360px;
  /* Altura máxima por defecto: el JS calcula el max-height final según
     el viewport disponible (~80vh) y lo aplica via inline style. */
  max-height: 80vh;
  overflow: hidden; /* el body tiene su propio scroll */
}

/* Flecha indicadora hacia el marcador, según lado de aparición */
.aacrom-labeled-graphic__panel--floating::before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--color-theme); /* coincide con el header */
  transform: rotate(45deg);
  z-index: -1;
}

.aacrom-labeled-graphic__panel--right::before {
  left: -6px;
  top: 24px;
  border-left: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.aacrom-labeled-graphic__panel--left::before {
  right: -6px;
  top: 24px;
  border-right: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
}

.aacrom-labeled-graphic__panel--bottom::before {
  top: -6px;
  left: 24px;
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.aacrom-labeled-graphic__panel--top::before {
  bottom: -6px;
  left: 24px;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* En móvil (clase --mobile), panel ocupa pantalla completa */
.aacrom-labeled-graphic__panel--mobile {
  position: fixed;
  inset: 0;
  width: 100% !important;
  max-width: 100% !important;
  max-height: 100% !important;
  border-radius: 0;
  border: 0;
  z-index: 1000;
  /* Sin flecha indicadora en móvil */
}

.aacrom-labeled-graphic__panel--mobile::before {
  display: none;
}

.aacrom-labeled-graphic__panel-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  flex-shrink: 0;
  border-top-left-radius: var(--border-radius-md);
  border-top-right-radius: var(--border-radius-md);
}

/* Sin border-radius cuando está en modo mobile (pantalla completa) */
.aacrom-labeled-graphic__panel--mobile .aacrom-labeled-graphic__panel-header {
  border-radius: 0;
}

.aacrom-labeled-graphic__panel-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
}

.aacrom-labeled-graphic__panel-title {
  flex: 1;
  margin: 0;
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
  color: inherit;
  line-height: var(--line-height-heading);
}

.aacrom-labeled-graphic__panel-close {
  width: 36px;
  height: 36px;
  border: 0;
  background: rgba(255, 255, 255, 0.15);
  color: inherit;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition-fast);
  padding: 0;
}

.aacrom-labeled-graphic__panel-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.aacrom-labeled-graphic__panel-body {
  padding: var(--spacing-md);
  flex: 1;
  overflow-y: auto;
}

.aacrom-labeled-graphic__panel-media {
  margin-bottom: var(--spacing-md);
}

.aacrom-labeled-graphic__panel-media-image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-sm);
  display: block;
}

.aacrom-labeled-graphic__panel-media-audio,
.aacrom-labeled-graphic__panel-media-video {
  width: 100%;
  display: block;
}

.aacrom-labeled-graphic__panel-media-caption {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
}

.aacrom-labeled-graphic__panel-description {
  font-size: 0.95rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
}

.aacrom-labeled-graphic__panel-description p {
  margin: 0 0 var(--spacing-sm) 0;
}

.aacrom-labeled-graphic__panel-description p:last-child {
  margin-bottom: 0;
}

.aacrom-labeled-graphic__panel-description strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
}

.aacrom-labeled-graphic__panel-description a {
  color: var(--color-accent-text);
  text-decoration: underline;
}

.aacrom-labeled-graphic__panel-description ul,
.aacrom-labeled-graphic__panel-description ol {
  margin: 0 0 var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

/* Responsive: en móvil el panel ocupa toda la pantalla */
@media (max-width: 599px) {
  .aacrom-labeled-graphic__panel {
    max-width: 100%;
  }
  .aacrom-labeled-graphic__marker {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
}

/* ---------------------------------------------------------
   external-block (Bloque externo / iframe)
   --------------------------------------------------------- */

.aacrom-block-external {
  margin-bottom: var(--block-margin);
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.aacrom-block-external__header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-background);
}

.aacrom-block-external__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  line-height: var(--line-height-heading);
}

.aacrom-block-external__description {
  margin: var(--spacing-xs) 0 0 0;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  line-height: var(--line-height-base);
}

.aacrom-block-external__frame-wrap {
  position: relative;
  background: #000;
}

.aacrom-block-external__iframe {
  display: block;
  width: 100%;
  border: 0;
  background: #fff;
}

.aacrom-block-external__loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  background: var(--color-background-alt);
  color: var(--color-text-muted);
  z-index: 1;
  transition: opacity var(--transition-base);
}

.aacrom-block-external__loader--hidden {
  opacity: 0;
  pointer-events: none;
}

.aacrom-block-external__spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-theme);
  border-radius: 50%;
  animation: aacrom-spin 0.8s linear infinite;
}

@keyframes aacrom-spin {
  to { transform: rotate(360deg); }
}

.aacrom-block-external__loader-text {
  font-size: var(--font-size-small);
}

.aacrom-block-external__error {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-placeholder-bg);
  color: var(--color-error);
  padding: var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-small);
}

.aacrom-block-external__status {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-small);
  background: var(--color-background);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  text-align: center;
  min-height: 24px;
}

.aacrom-block-external__status:empty {
  display: none;
}

.aacrom-block-external__status--completed {
  color: var(--color-success);
  font-weight: var(--font-weight-medium);
}

.aacrom-block-external__status--failed {
  color: var(--color-error);
  font-weight: var(--font-weight-medium);
}

.aacrom-block-external__actions {
  padding: var(--spacing-md);
  display: flex;
  justify-content: center;
  background: var(--color-background);
  border-top: 1px solid var(--color-border);
}

.aacrom-block-external__continue {
  min-width: 240px;
}

.aacrom-block-external__trigger-hint {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
  background: var(--color-background);
  border-top: 1px solid var(--color-border);
}

/* ===================================================================
   SUB-ETAPA 3.5 — Componentes interactivos medios
   =================================================================== */

/* ----------- 1. interactive-accordion ----------- */
.aacrom-block-accordion { margin-bottom: var(--block-margin); }

.aacrom-accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background: var(--color-background);
}

.aacrom-accordion__item {
  border-bottom: 1px solid var(--color-border);
}
.aacrom-accordion__item:last-child {
  border-bottom: 0;
}

.aacrom-accordion__title {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-background);
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  text-align: left;
  transition: background 0.15s ease;
}

.aacrom-accordion__title:hover {
  background: var(--color-surface-alt, #F0F4F8);
}

.aacrom-accordion__title[aria-expanded="true"] {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
}

.aacrom-accordion__title-text {
  flex: 1;
}

.aacrom-accordion__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.08);
  position: relative;
  /* Texto vacío — el icono se construye con pseudo-elementos para
     que el centrado sea geométrico exacto, independiente de la fuente. */
  font-size: 0;
  flex-shrink: 0;
}

.aacrom-accordion__icon::before,
.aacrom-accordion__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  top: 50%;
  left: 50%;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Línea horizontal del + */
.aacrom-accordion__icon::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

/* Línea vertical del + (se oculta cuando expanded → queda solo la horizontal = −) */
.aacrom-accordion__icon::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}

/* Cuando el item está expandido, la línea vertical desaparece → queda "−" */
.aacrom-accordion__title[aria-expanded="true"] .aacrom-accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.aacrom-accordion__title[aria-expanded="true"] .aacrom-accordion__icon {
  background: rgba(255, 255, 255, 0.25);
}

.aacrom-accordion__panel[aria-hidden="true"] {
  display: none;
}

.aacrom-accordion__panel-inner {
  padding: var(--spacing-md) var(--spacing-lg);
  line-height: var(--line-height-base);
  color: var(--color-text);
}

[data-theme="dark"] .aacrom-accordion__title:hover {
  background: var(--color-surface-alt, #2A2F3A);
}

/* ----------- 2. interactive-tabs ----------- */
.aacrom-block-tabs { margin-bottom: var(--block-margin); }

.aacrom-tabs {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background: var(--color-background);
}

.aacrom-tabs__list {
  display: flex;
  flex-wrap: wrap;
  background: var(--color-surface-alt, #F0F4F8);
  border-bottom: 1px solid var(--color-border);
}

.aacrom-tabs__tab {
  flex: 1 1 auto;
  min-width: 100px;
  padding: var(--spacing-md) var(--spacing-lg);
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  transition: all 0.15s ease;
  text-align: center;
}

.aacrom-tabs__tab:hover {
  background: var(--color-background);
  color: var(--color-text);
}

.aacrom-tabs__tab--active,
.aacrom-tabs__tab[aria-selected="true"] {
  background: var(--color-background);
  color: var(--color-accent-text);
  border-bottom-color: var(--color-theme);
}

.aacrom-tabs__tab:focus-visible {
  outline: 2px solid var(--color-theme);
  outline-offset: -2px;
}

.aacrom-tabs__panels {
  padding: var(--spacing-lg);
}

.aacrom-tabs__panel[hidden] {
  display: none;
}

.aacrom-tabs__panel-inner {
  line-height: var(--line-height-base);
  color: var(--color-text);
}

/* ----------- 3. interactive-flashcards (variant stack) ----------- */
.aacrom-block-flashcards { margin-bottom: var(--block-margin); }

.aacrom-flashcards {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.aacrom-flashcards__counter {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-bold);
}

.aacrom-flashcards__card-area {
  width: 100%;
  max-width: 540px;
  perspective: 1500px;
}

.aacrom-flashcards__card {
  position: relative;
  width: 100%;
  min-height: 320px;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: transform 0.5s ease;
  border-radius: var(--border-radius-md);
}

.aacrom-flashcards__card:focus-visible {
  outline: 2px solid var(--color-theme);
  outline-offset: 4px;
}

.aacrom-flashcards__card--flipped {
  transform: rotateY(180deg);
}

.aacrom-flashcards__face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-background);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.aacrom-flashcards__face--back {
  transform: rotateY(180deg);
  background: var(--color-surface-alt, #F0F4F8);
}

.aacrom-flashcards__face-image {
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-sm);
}

.aacrom-flashcards__face-text {
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.aacrom-flashcards__hint {
  margin-top: auto;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
  padding-top: var(--spacing-sm);
}

.aacrom-flashcards__audio {
  width: 100%;
  margin-top: var(--spacing-sm);
}

.aacrom-flashcards__audio audio {
  width: 100%;
}

.aacrom-flashcards__audio-caption {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  text-align: center;
}

.aacrom-flashcards__nav {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  width: 100%;
}

.aacrom-flashcards__nav-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border: 0;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  transition: opacity 0.15s ease;
}

.aacrom-flashcards__nav-btn:hover:not(:disabled) {
  opacity: 0.85;
}

.aacrom-flashcards__nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ----------- 4. interactive-process ----------- */
.aacrom-block-process { margin-bottom: var(--block-margin); }

.aacrom-process {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}

.aacrom-process__progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.aacrom-process__dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: var(--font-size-small);
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.aacrom-process__dot:hover {
  border-color: var(--color-theme);
}

.aacrom-process__dot--active {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border-color: var(--color-theme);
  transform: scale(1.1);
}

.aacrom-process__dot--completed {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border-color: var(--color-theme);
  opacity: 0.7;
}

.aacrom-process__line {
  flex: 0 0 32px;
  height: 2px;
  background: var(--color-border);
  transition: background 0.2s ease;
}

.aacrom-process__line--completed {
  background: var(--color-theme);
}

.aacrom-process__step-area {
  min-height: 200px;
  padding: var(--spacing-md) 0;
}

.aacrom-process__step-number {
  font-size: var(--font-size-small);
  color: var(--color-accent-text);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.aacrom-process__step-title {
  font-size: var(--font-size-h3, 1.4rem);
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
}

.aacrom-process__step-description {
  line-height: var(--line-height-base);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.aacrom-process__step-media img {
  max-width: 100%;
  border-radius: var(--border-radius-sm);
}

.aacrom-process__nav {
  display: flex;
  gap: var(--spacing-md);
  justify-content: space-between;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.aacrom-process__nav-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border: 0;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  transition: opacity 0.15s ease;
}

.aacrom-process__nav-btn:hover:not(:disabled) {
  opacity: 0.85;
}

.aacrom-process__nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ----------- 5. interactive-timeline ----------- */
.aacrom-block-timeline { margin-bottom: var(--block-margin); }

.aacrom-timeline {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}

.aacrom-timeline__axis {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
  overflow-x: auto;
}

.aacrom-timeline__hit {
  flex: 1 0 100px;
  padding: var(--spacing-sm);
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  transition: all 0.15s ease;
  border-radius: var(--border-radius-sm);
  color: var(--color-text-muted);
}

.aacrom-timeline__hit:hover {
  background: var(--color-surface-alt, #F0F4F8);
  color: var(--color-text);
}

.aacrom-timeline__hit-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-border);
  border: 2px solid var(--color-background);
  box-shadow: 0 0 0 2px var(--color-border);
  transition: all 0.2s ease;
}

.aacrom-timeline__hit--active .aacrom-timeline__hit-dot {
  background: var(--color-theme);
  box-shadow: 0 0 0 2px var(--color-theme);
  transform: scale(1.2);
}

.aacrom-timeline__hit--visited .aacrom-timeline__hit-dot {
  background: var(--color-theme);
  box-shadow: 0 0 0 2px var(--color-theme);
  opacity: 0.5;
}

.aacrom-timeline__hit-date {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-bold);
}

.aacrom-timeline__hit--active {
  color: var(--color-accent-text);
}

.aacrom-timeline__detail {
  min-height: 200px;
  padding: var(--spacing-md) 0;
}

.aacrom-timeline__detail-date {
  font-size: var(--font-size-small);
  color: var(--color-accent-text);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.aacrom-timeline__detail-title {
  font-size: var(--font-size-h3, 1.4rem);
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
}

.aacrom-timeline__detail-description {
  line-height: var(--line-height-base);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.aacrom-timeline__detail-media audio,
.aacrom-timeline__detail-media img {
  width: 100%;
  max-width: 100%;
}

.aacrom-timeline__detail-caption {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

.aacrom-timeline__nav {
  display: flex;
  gap: var(--spacing-md);
  justify-content: space-between;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.aacrom-timeline__nav-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border: 0;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  transition: opacity 0.15s ease;
}

.aacrom-timeline__nav-btn:hover:not(:disabled) {
  opacity: 0.85;
}

.aacrom-timeline__nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ----------- 6. impact-statement ----------- */
.aacrom-block-impact { margin-bottom: var(--block-margin); }

/* Variante 'note': retroalimentación / nota destacada */
.aacrom-impact--note {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-surface-alt, #F0F4F8);
  border-left: 4px solid var(--color-theme);
  border-radius: var(--border-radius-sm);
  align-items: flex-start;
}

.aacrom-impact__icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.2rem;
}

.aacrom-impact__content {
  flex: 1;
}

.aacrom-impact__heading {
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.aacrom-impact__paragraph {
  line-height: var(--line-height-base);
  color: var(--color-text);
}

.aacrom-impact__paragraph p {
  margin: 0;
}

.aacrom-impact__paragraph p + p {
  margin-top: var(--spacing-sm);
}

/* Variante 'b': banner de gran impacto */
.aacrom-impact--b {
  padding: var(--spacing-2xl, 48px) var(--spacing-xl, 32px);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border-radius: var(--border-radius-md);
  text-align: center;
}

.aacrom-impact__big-heading {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  line-height: 1.15;
}

.aacrom-impact__big-paragraph {
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: var(--line-height-base);
  max-width: 720px;
  margin: 0 auto;
}

.aacrom-impact__big-heading p,
.aacrom-impact__big-paragraph p {
  margin: 0;
}

/* ----------- 7. knowledge-check ----------- */
.aacrom-block-knowledge-check { margin-bottom: var(--block-margin); }

.aacrom-knowledge-check {
  padding: var(--spacing-lg);
  background: var(--color-surface-alt, #F0F4F8);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
}

.aacrom-knowledge-check__question {
  font-size: var(--font-size-h4, 1.15rem);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
  line-height: 1.4;
}

.aacrom-knowledge-check__hint {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
  margin: 0 0 var(--spacing-md) 0;
}

.aacrom-knowledge-check__answers {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.aacrom-knowledge-check__answer {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: var(--line-height-base);
  color: var(--color-text);
}

.aacrom-knowledge-check__answer:hover:not(.aacrom-knowledge-check__answer--disabled) {
  border-color: var(--color-theme);
  background: var(--color-surface-alt, #F0F4F8);
}

.aacrom-knowledge-check__answer-input {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  cursor: pointer;
  margin: 0;
}

.aacrom-knowledge-check__answer-input:disabled {
  cursor: not-allowed;
}

.aacrom-knowledge-check__answer-text {
  flex: 1;
}

.aacrom-knowledge-check__answer--disabled {
  cursor: default;
}

.aacrom-knowledge-check__answer--correct {
  border-color: var(--color-success, #16A34A);
  background: var(--color-success-bg, #DCFCE7);
}

.aacrom-knowledge-check__answer--wrong {
  border-color: var(--color-danger, #DC2626);
  background: var(--color-danger-bg, #FEE2E2);
}

.aacrom-knowledge-check__answer--missed {
  border-color: var(--color-success, #16A34A);
  background: transparent;
  border-style: dashed;
}

.aacrom-knowledge-check__submit,
.aacrom-knowledge-check__retake {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border: 0;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  transition: opacity 0.15s ease;
}

.aacrom-knowledge-check__submit:hover:not(:disabled),
.aacrom-knowledge-check__retake:hover {
  opacity: 0.85;
}

.aacrom-knowledge-check__submit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.aacrom-knowledge-check__feedback {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--color-border);
}

.aacrom-knowledge-check__feedback strong {
  display: block;
  margin-bottom: var(--spacing-xs);
}

.aacrom-knowledge-check__feedback p {
  margin: 0;
  line-height: var(--line-height-base);
}

.aacrom-knowledge-check__feedback--correct {
  border-left-color: var(--color-success, #16A34A);
  background: var(--color-success-bg, #DCFCE7);
  color: var(--color-success-text, #166534);
}

.aacrom-knowledge-check__feedback--incorrect {
  border-left-color: var(--color-danger, #DC2626);
  background: var(--color-danger-bg, #FEE2E2);
  color: var(--color-danger-text, #991B1B);
}

[data-theme="dark"] .aacrom-knowledge-check__feedback--correct {
  background: rgba(22, 163, 74, 0.15);
  color: #86EFAC;
}

[data-theme="dark"] .aacrom-knowledge-check__feedback--incorrect {
  background: rgba(220, 38, 38, 0.15);
  color: #FCA5A5;
}

[data-theme="dark"] .aacrom-knowledge-check__answer--correct {
  background: rgba(22, 163, 74, 0.15);
}

[data-theme="dark"] .aacrom-knowledge-check__answer--wrong {
  background: rgba(220, 38, 38, 0.15);
}

/* ----------- 8. divider-section ----------- */
.aacrom-block-divider-section {
  margin: var(--spacing-2xl, 48px) 0;
}

.aacrom-divider-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.aacrom-divider-section__line {
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.aacrom-divider-section__content {
  flex-shrink: 0;
  text-align: center;
  padding: 0 var(--spacing-md);
}

.aacrom-divider-section__title {
  margin: 0;
  font-size: var(--font-size-h3, 1.4rem);
  color: var(--color-heading);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

.aacrom-divider-section__subtitle {
  margin: var(--spacing-xs) 0 0 0;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
}

/* Variante numbered: muestra un número grande */
.aacrom-divider-section--numbered .aacrom-divider-section__title::before {
  content: attr(data-num) " · ";
  color: var(--color-text-muted);
}

/* Variante minimal: solo título sin líneas */
.aacrom-divider-section--minimal .aacrom-divider-section__line {
  display: none;
}

.aacrom-divider-section--minimal .aacrom-divider-section__content {
  padding: 0;
  text-align: left;
}

/* ===================================================================
   SUB-ETAPA 3.6 — Componentes prioridad baja (9 componentes)
   =================================================================== */

/* ---------- 1. text-list ---------- */
.aacrom-block-text-list { margin-bottom: var(--block-margin); }
.aacrom-list {
  margin: 0;
  padding-left: 1.6em;
  line-height: var(--line-height-base);
  color: var(--color-text);
}
.aacrom-list--bullet { list-style-type: disc; }
.aacrom-list--ordered { list-style-type: decimal; }
.aacrom-list__item { margin-bottom: var(--spacing-xs); padding-left: 0.2em; }
.aacrom-list__item:last-child { margin-bottom: 0; }
.aacrom-list__item a {
  color: var(--color-accent-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 2. text-table ---------- */
.aacrom-block-text-table { margin-bottom: var(--block-margin); }
.aacrom-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
}
.aacrom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-base);
  color: var(--color-text);
}
.aacrom-table__caption {
  caption-side: top;
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  background: var(--color-surface-alt);
}
.aacrom-table__header-row {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
}
.aacrom-table__header-cell {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  font-weight: var(--font-weight-bold);
  border: 1px solid var(--color-border);
}
.aacrom-table__row--alt {
  background: var(--color-surface-alt);
}
.aacrom-table__cell {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  vertical-align: top;
}

/* ---------- 3. interactive-buttons ---------- */
.aacrom-block-buttons { margin-bottom: var(--block-margin); }
.aacrom-buttons {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}
.aacrom-buttons__grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}
.aacrom-buttons__btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  transition: all 0.15s ease;
}
.aacrom-buttons__btn:hover {
  border-color: var(--color-theme);
}
.aacrom-buttons__btn--active {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border-color: var(--color-theme);
}
.aacrom-buttons__btn--visited:not(.aacrom-buttons__btn--active)::after {
  content: " ✓";
  opacity: 0.6;
  font-size: 0.85em;
}
.aacrom-buttons__panel {
  padding: var(--spacing-md);
  background: var(--color-surface-alt);
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--color-theme);
}
.aacrom-buttons__panel-title {
  font-size: var(--font-size-h4, 1.15rem);
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-heading);
}
.aacrom-buttons__panel-content {
  line-height: var(--line-height-base);
  color: var(--color-text);
}
.aacrom-buttons__panel-content p:last-child { margin-bottom: 0; }

/* ---------- 4. interactive-sorting ---------- */
.aacrom-block-sorting { margin-bottom: var(--block-margin); }
.aacrom-sorting {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}
.aacrom-sorting__instructions {
  margin-bottom: var(--spacing-sm);
  line-height: var(--line-height-base);
  color: var(--color-text);
}
.aacrom-sorting__hint {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
  margin: 0 0 var(--spacing-md) 0;
}
.aacrom-sorting__items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}
.aacrom-sorting__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  flex-wrap: wrap;
}
.aacrom-sorting__item-label {
  flex: 1;
  min-width: 180px;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}
.aacrom-sorting__item-select {
  flex: 0 0 auto;
  min-width: 200px;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-family: inherit;
  font-size: var(--font-size-base);
  background: var(--color-background);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
}
.aacrom-sorting__item-select:disabled { cursor: not-allowed; opacity: 0.7; }
.aacrom-sorting__item--correct {
  border-color: var(--color-success);
  background: var(--color-success-bg);
}
.aacrom-sorting__item--wrong {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}
.aacrom-sorting__correct-hint {
  width: 100%;
  font-size: var(--font-size-small);
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  margin-top: var(--spacing-xs);
}
.aacrom-sorting__submit, .aacrom-sorting__retake {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border: 0;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  transition: opacity 0.15s ease;
}
.aacrom-sorting__submit:hover:not(:disabled),
.aacrom-sorting__retake:hover { opacity: 0.85; }
.aacrom-sorting__submit:disabled { opacity: 0.4; cursor: not-allowed; }
.aacrom-sorting__feedback {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--color-border);
}
.aacrom-sorting__feedback strong { display: block; margin-bottom: var(--spacing-xs); }
.aacrom-sorting__feedback p { margin: 0; line-height: var(--line-height-base); }
.aacrom-sorting__feedback--correct {
  border-left-color: var(--color-success);
  background: var(--color-success-bg);
  color: var(--color-success-text);
}
.aacrom-sorting__feedback--incorrect {
  border-left-color: var(--color-danger);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

/* ---------- 5. interactive-scenario ---------- */
.aacrom-block-scenario { margin-bottom: var(--block-margin); }
.aacrom-scenario {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}
.aacrom-scenario__character {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}
.aacrom-scenario__avatar,
.aacrom-scenario__avatar-initials {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
}
.aacrom-scenario__avatar-initials {
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: 1.2rem;
}
.aacrom-scenario__character-name {
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  font-size: 1.05rem;
}
.aacrom-scenario__character-role {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}
.aacrom-scenario__situation {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-base);
  color: var(--color-text);
}
.aacrom-scenario__situation p:last-child { margin-bottom: 0; }
.aacrom-scenario__question {
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  margin: 0 0 var(--spacing-md) 0;
  font-size: 1.05rem;
}
.aacrom-scenario__options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}
.aacrom-scenario__option {
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  transition: all 0.15s ease;
}
.aacrom-scenario__option:hover:not(:disabled) {
  border-color: var(--color-theme);
  background: var(--color-surface-alt);
}
.aacrom-scenario__option:disabled { cursor: default; }
.aacrom-scenario__option--inactive { opacity: 0.5; }
.aacrom-scenario__option--good {
  border-color: var(--color-success);
  background: var(--color-success-bg);
}
.aacrom-scenario__option--bad {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}
.aacrom-scenario__option--regular {
  border-color: #F59E0B;
  background: rgba(245, 158, 11, 0.1);
}
.aacrom-scenario__feedback {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--color-border);
  margin-bottom: var(--spacing-sm);
}
.aacrom-scenario__feedback-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-bold);
}
.aacrom-scenario__feedback-content {
  line-height: var(--line-height-base);
}
.aacrom-scenario__feedback-content p:last-child { margin: 0; }
.aacrom-scenario__feedback--good {
  border-left-color: var(--color-success);
  background: var(--color-success-bg);
  color: var(--color-success-text);
}
.aacrom-scenario__feedback--bad {
  border-left-color: var(--color-danger);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}
.aacrom-scenario__feedback--regular {
  border-left-color: #F59E0B;
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-text);
}
.aacrom-scenario__retake,
.aacrom-scenario__retry,
.aacrom-scenario__continue,
.aacrom-scenario__restart {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  border: 0;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  margin-top: var(--spacing-sm);
  transition: opacity 0.15s ease;
}
.aacrom-scenario__retake:hover,
.aacrom-scenario__retry:hover,
.aacrom-scenario__continue:hover,
.aacrom-scenario__restart:hover { opacity: 0.85; }

.aacrom-scenario__retry {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.aacrom-scenario__retry:hover {
  background: var(--color-surface-alt);
  opacity: 1;
}

/* Indicador de progreso del multi-step */
.aacrom-scenario__progress {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Step de tipo info (texto narrativo entre diálogos) */
.aacrom-scenario__info-content {
  padding: var(--spacing-md);
  background: var(--color-surface-alt);
  border-left: 3px solid var(--color-theme);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-base);
  color: var(--color-text);
}
.aacrom-scenario__info-content p:last-child { margin: 0; }

/* Step final */
.aacrom-scenario__end {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: var(--color-surface-alt);
  border-radius: var(--border-radius-md);
  border: 2px solid var(--color-success);
}
.aacrom-scenario__end-marker {
  font-size: 1.2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-success);
  margin-bottom: var(--spacing-md);
}
.aacrom-scenario__end-content {
  line-height: var(--line-height-base);
  color: var(--color-text);
  max-width: 540px;
  margin: 0 auto;
}
.aacrom-scenario__end-content p:last-child { margin: 0; }

/* Restart aparece centrado al final */
.aacrom-scenario__restart {
  display: block;
  margin: var(--spacing-md) auto 0;
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.aacrom-scenario__restart:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
  opacity: 1;
}

/* ---------- 6. multimedia-gallery ---------- */
.aacrom-block-gallery { margin-bottom: var(--block-margin); }
.aacrom-gallery--grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
}
.aacrom-gallery--row {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
}
.aacrom-gallery--row .aacrom-gallery__item { flex: 0 0 220px; }
.aacrom-gallery__item {
  margin: 0;
  display: flex;
  flex-direction: column;
}
.aacrom-gallery__thumb-btn {
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  transition: transform 0.15s ease;
}
.aacrom-gallery__thumb-btn:hover { transform: scale(1.02); }
.aacrom-gallery__thumb-btn:focus-visible {
  outline: 3px solid var(--color-theme);
  outline-offset: 2px;
}
.aacrom-gallery__thumb {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  border-radius: var(--border-radius-sm);
}
.aacrom-gallery__caption {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  text-align: center;
}
/* Lightbox */
.aacrom-gallery__lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}
/* Cuando tiene atributo hidden, ocultar (necesario porque display:flex
   lo sobrescribe por defecto). */
.aacrom-gallery__lightbox[hidden] {
  display: none;
}
.aacrom-gallery__lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.aacrom-gallery__lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--border-radius-sm);
}
.aacrom-gallery__lightbox-close {
  position: absolute;
  top: -48px;
  right: 0;
  background: rgba(0, 0, 0, 0.75);
  color: #FFFFFF;
  border: 2px solid rgba(255, 255, 255, 0.4);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.15s ease;
}
.aacrom-gallery__lightbox-close:hover {
  background: rgba(0, 0, 0, 0.9);
  border-color: rgba(255, 255, 255, 0.7);
}
.aacrom-gallery__lightbox-close:focus-visible {
  outline: 2px solid #FFFFFF;
  outline-offset: 2px;
}
.aacrom-gallery__lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.75);
  color: #FFFFFF;
  border: 2px solid rgba(255, 255, 255, 0.4);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  transition: all 0.15s ease;
}
.aacrom-gallery__lightbox-nav:hover:not(:disabled) {
  background: rgba(0, 0, 0, 0.9);
  border-color: rgba(255, 255, 255, 0.7);
}
.aacrom-gallery__lightbox-nav:focus-visible {
  outline: 2px solid #FFFFFF;
  outline-offset: 2px;
}
.aacrom-gallery__lightbox-nav:disabled { opacity: 0.3; cursor: not-allowed; }
.aacrom-gallery__lightbox-nav--prev { left: -68px; }
.aacrom-gallery__lightbox-nav--next { right: -68px; }
.aacrom-gallery__lightbox-caption {
  color: #FFFFFF;
  margin-top: var(--spacing-sm);
  text-align: center;
  font-size: var(--font-size-base);
}
.aacrom-gallery__lightbox-counter {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-small);
  margin-top: var(--spacing-xs);
}
@media (max-width: 768px) {
  .aacrom-gallery__lightbox-nav--prev { left: 10px; }
  .aacrom-gallery__lightbox-nav--next { right: 10px; }
}

/* ---------- 7. multimedia-attachment ---------- */
.aacrom-block-attachment { margin-bottom: var(--block-margin); }
.aacrom-attachment {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
}
.aacrom-attachment__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: var(--color-background);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
}
.aacrom-attachment__info {
  flex: 1;
  min-width: 0;
}
.aacrom-attachment__name {
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  margin-bottom: 2px;
  word-break: break-word;
}
.aacrom-attachment__meta {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}
.aacrom-attachment__description {
  margin: var(--spacing-xs) 0 0 0;
  font-size: var(--font-size-small);
  color: var(--color-text);
  line-height: var(--line-height-base);
}
.aacrom-attachment__download {
  flex-shrink: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
  transition: opacity 0.15s ease;
}
.aacrom-attachment__download:hover { opacity: 0.85; }
@media (max-width: 600px) {
  .aacrom-attachment { flex-wrap: wrap; }
  .aacrom-attachment__download { width: 100%; text-align: center; }
}

/* ---------- 8. multimedia-embed ---------- */
.aacrom-block-embed { margin-bottom: var(--block-margin); }
.aacrom-embed { width: 100%; }
.aacrom-embed__container {
  position: relative;
  width: 100%;
  background: var(--color-surface-alt);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}
.aacrom-embed__container--16-9 { aspect-ratio: 16 / 9; }
.aacrom-embed__container--4-3 { aspect-ratio: 4 / 3; }
.aacrom-embed__container--1-1 { aspect-ratio: 1 / 1; }
.aacrom-embed__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.aacrom-embed__placeholder {
  padding: var(--spacing-xl);
  background: var(--color-surface-alt);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-md);
  text-align: center;
}
.aacrom-embed__placeholder-icon { font-size: 2.5rem; margin-bottom: var(--spacing-sm); }
.aacrom-embed__placeholder-title {
  font-size: var(--font-size-h4, 1.15rem);
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-heading);
}
.aacrom-embed__placeholder-msg {
  margin: 0 0 var(--spacing-xs) 0;
  color: var(--color-text);
}
.aacrom-embed__placeholder-domain {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-style: italic;
}
.aacrom-embed__placeholder-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  font-weight: var(--font-weight-bold);
}
.aacrom-embed__placeholder-link:hover { opacity: 0.85; }
.aacrom-embed__caption {
  margin: var(--spacing-sm) 0 0 0;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  text-align: center;
}

/* Aviso para preview local (file://): el iframe no funcionaría por
   restricciones del navegador, así que mostramos un panel informativo
   en su lugar. En SCORM real subido a Moodle, el iframe sí carga. */
.aacrom-embed__file-notice {
  padding: var(--spacing-xl);
  background: linear-gradient(135deg,
    rgba(31, 56, 100, 0.08) 0%,
    rgba(31, 56, 100, 0.02) 100%);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-md);
  text-align: center;
  position: relative;
}
.aacrom-embed__file-notice-icon { font-size: 3rem; margin-bottom: var(--spacing-sm); }
.aacrom-embed__file-notice-title {
  font-size: var(--font-size-h4, 1.15rem);
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-heading);
}
.aacrom-embed__file-notice-msg {
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-text);
  line-height: var(--line-height-base);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.aacrom-embed__file-notice-domain {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-family: var(--font-family-mono, monospace);
}
.aacrom-embed__file-notice-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-theme);
  color: var(--color-theme-contrast);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  font-weight: var(--font-weight-bold);
  transition: opacity 0.15s ease;
}
.aacrom-embed__file-notice-link:hover { opacity: 0.85; }

/* ---------- 9. chart ---------- */
.aacrom-block-chart { margin-bottom: var(--block-margin); }
.aacrom-chart {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}
.aacrom-chart__title {
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  text-align: center;
}
.aacrom-chart__sr-table { position: absolute; left: -9999px; }

/* Bar horizontal */
.aacrom-chart__bars-h {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}
.aacrom-chart__bar-h-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}
.aacrom-chart__bar-h-label {
  flex: 0 0 140px;
  font-size: var(--font-size-small);
  color: var(--color-text);
  text-align: right;
  word-break: break-word;
}
.aacrom-chart__bar-h-track {
  flex: 1;
  height: 24px;
  background: var(--color-surface-alt);
  border-radius: 4px;
  overflow: hidden;
}
.aacrom-chart__bar-h-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s ease;
}
.aacrom-chart__bar-h-value {
  flex: 0 0 60px;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-small);
  color: var(--color-text);
}

/* Bar vertical */
.aacrom-chart__bars-v {
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  gap: var(--spacing-sm);
  height: 240px;
  padding: var(--spacing-sm) 0;
}
.aacrom-chart__bar-v-col {
  flex: 1 1 0;
  min-width: 40px;
  max-width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}
.aacrom-chart__bar-v-value {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}
.aacrom-chart__bar-v-track {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: flex-end;
  background: var(--color-surface-alt);
  border-radius: 4px 4px 0 0;
}
.aacrom-chart__bar-v-fill {
  width: 100%;
  border-radius: 4px 4px 0 0;
  transition: height 0.5s ease;
}
.aacrom-chart__bar-v-label {
  font-size: var(--font-size-small);
  color: var(--color-text);
  text-align: center;
  margin-top: var(--spacing-xs);
  word-break: break-word;
}

/* Pie */
.aacrom-chart__pie-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
}
.aacrom-chart__pie-svg {
  flex: 0 0 auto;
  width: 240px;
  height: 240px;
  max-width: 100%;
}
.aacrom-chart__pie-legend {
  flex: 1;
  min-width: 200px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.aacrom-chart__pie-legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-small);
  color: var(--color-text);
}
.aacrom-chart__pie-legend-swatch {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border-radius: 3px;
}