/* ==========================================================================
   ACADEMIA CREABIZCORP - SISTEMA DE DISEÑO PREMIUM (FÓRMULA 1040)
   Colores: Azul Marino (#001a36) y Dorado (#e9c176)
   Seguridad: Protección de copia, anti-selección y marca de agua flotante
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  /* Paleta de Colores de la Marca */
  --brand-navy: #001a36;
  --brand-navy-light: #002c5c;
  --brand-gold: #e9c176;
  --brand-gold-hover: #f1d7a3;
  --white: #ffffff;
  --success: #20bf6b;
  --error: #eb3b5a;
  --warning: #f7b731;

  /* Tipografía */
  --font-header: 'Manrope', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Transiciones */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Variables del Tema Claro (Predeterminado) */
  --bg-primary: #ffffff;
  --bg-secondary: #f4f7fa;
  --bg-sidebar: #001c3a; /* Cambiado a azul navy para coincidir exactamente con la marca */
  --sidebar-text: #ffffff;
  --text-primary: #001a36;
  --text-secondary: #57606f;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --card-shadow: 0 10px 30px rgba(0, 26, 54, 0.04);
  --input-bg: #f8fafc;
  --active-menu-bg: rgba(233, 193, 118, 0.12);
  --active-menu-text: #e9c176;
}

/* Modificadores de Tema Oscuro */
[data-theme="dark"] {
  --bg-primary: #001c3a;      /* Navy azul oscuro pero claramente azul */
  --bg-secondary: #00264d;    /* Navy azul principal de fondo */
  --bg-sidebar: #001c3a;      /* Cambiado a azul navy para coincidir exactamente con el de la derecha */
  --sidebar-text: #ffffff;
  --text-primary: #ffffff;
  --text-secondary: #a4b7cd;  /* Navy azul claro para texto secundario */
  --border-color: #0c3564;    /* Borde azul navy brillante */
  --card-bg: #001e3d;         /* Card background azul navy */
  --card-shadow: 0 10px 35px rgba(0, 0, 0, 0.35);
  --input-bg: #001328;
  --active-menu-bg: rgba(233, 193, 118, 0.2);
  --active-menu-text: #e9c176;
}

/* ==========================================================================
   RESET & SEGURIDAD GENERAL (Anti-Copy / Anti-Select)
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  overflow-x: hidden;
  max-width: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  
  /* Bloquear selección de textos (Escudo de Seguridad) */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

/* Permitir selección únicamente para inputs de escritura del alumno */
input, textarea {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
  font-family: var(--font-body);
}

/* Bloqueo de Impresión Física y Guardado en PDF */
@media print {
  body {
    display: none !important;
  }
}

/* ==========================================================================
   DISEÑO DEL CONTENEDOR (APP GRID LAYOUT)
   ========================================================================== */
.app-container {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* Barra Lateral (Sidebar) */
.sidebar {
  width: 280px;
  background-color: var(--bg-sidebar);
  color: var(--sidebar-text);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 20px;
}

.sidebar-logo {
  max-width: 210px;
  max-height: 80px;
  width: 90%;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.2));
  transition: transform var(--transition-fast);
}

.sidebar-logo:hover {
  transform: scale(1.03);
}

.menu-section-title {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #e9c176 !important; /* Dorado de la marca */
  opacity: 1 !important;      /* Contraste excelente */
  padding: 18px 8px 8px 8px;
}

.navigation-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  flex-grow: 1;
  padding-right: 4px;
}

.navigation-menu::-webkit-scrollbar {
  width: 4px;
}
.navigation-menu::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-fast);
  position: relative;
}

.menu-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
  color: #ffffff;
}

.menu-item.active {
  background-color: var(--active-menu-bg);
  color: var(--active-menu-text);
  font-weight: 600;
}

.menu-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15%;
  height: 70%;
  width: 3px;
  background-color: var(--brand-gold);
  border-radius: 0 4px 4px 0;
}

.menu-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ==========================================================================
   ACORDEÓN INTERACTIVO DE LECCIONES
   ========================================================================== */
.submenu {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out, padding var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-left: 24px;
  border-left: 1px dashed rgba(255, 255, 255, 0.1);
  margin-left: 20px;
}

.submenu.open {
  max-height: 600px; /* Lo suficientemente grande para contener las lecciones */
  padding-top: 4px;
  padding-bottom: 8px;
}

.submenu-item {
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.88); /* Más brillante y legible (menos gris) */
  border-radius: 6px;
  cursor: pointer;
  white-space: normal; /* Permitir envoltura de texto */
  line-height: 1.35;
  transition: all var(--transition-fast);
  display: flex;
  align-items: flex-start; /* Alinear arriba con la primera línea de texto */
  gap: 8px;
}

.submenu-item::before {
  content: '•'; /* Viñeta rellena */
  font-size: 0.8rem;
  line-height: 1.25;
  opacity: 0.8;
  color: var(--brand-gold); /* Viñeta dorada para armonía y elegancia */
  transition: color var(--transition-fast);
}

.submenu-item:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.04);
}

.submenu-item.active {
  color: var(--brand-gold);
  font-weight: 600;
  background-color: rgba(233, 193, 118, 0.08);
}

.submenu-item.active::before {
  content: '●';
  color: var(--brand-gold);
  opacity: 1;
}

.submenu-item.completed::after {
  content: '✓';
  margin-left: auto;
  color: var(--success);
  font-weight: 700;
  font-size: 0.8rem;
}

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 16px;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
}

/* Main Content Area */
.main-wrapper {
  flex-grow: 1;
  margin-left: 280px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-secondary);
}

/* Header Bar */
.top-header {
  min-height: 70px;
  height: auto;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
  transition: background-color var(--transition-normal);
}

.header-title-container {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
  margin-right: 16px;
}

.header-title-container h1 {
  font-family: var(--font-header);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  white-space: normal;
  word-wrap: break-word;
}

.mobile-header-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
  margin-right: 12px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Botón de cambio de tema */
.theme-switch-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-switch-btn:hover {
  background-color: var(--bg-secondary);
  color: var(--brand-gold);
}

.theme-switch-btn svg {
  width: 20px;
  height: 20px;
}

.student-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 30px;
}

.student-avatar {
  width: 26px;
  height: 26px;
  background-color: var(--brand-navy);
  color: var(--brand-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  font-family: var(--font-header);
}

.student-email {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Content Body */
.content-body {
  padding: 32px;
  flex-grow: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

/* ==========================================================================
   VISTA DE INICIO (DASHBOARD)
   ========================================================================== */
.welcome-card {
  background: linear-gradient(135deg, var(--brand-navy) 0%, #002247 100%);
  color: #ffffff;
  padding: 36px;
  border-radius: 16px;
  box-shadow: 0 15px 35px rgba(0, 26, 54, 0.12);
  margin-bottom: 28px;
  position: relative;
  overflow: hidden;
}

.welcome-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(233, 193, 118, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.welcome-card h2 {
  font-family: var(--font-header);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.welcome-card h2 span {
  color: var(--brand-gold);
}

.welcome-card p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.92rem;
  max-width: 650px;
  line-height: 1.6;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-gold {
  background-color: var(--brand-gold);
  color: var(--brand-navy);
}

.btn-gold:hover {
  background-color: var(--brand-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 5px 15px rgba(233, 193, 118, 0.25);
}

.btn-outline {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  background-color: var(--bg-secondary);
  border-color: var(--text-secondary);
}

.btn-primary {
  background-color: var(--brand-navy);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--brand-navy-light);
}

/* Dashboard Stats Grid */
.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background-color: var(--card-bg);
  border: 1px solid var(--brand-gold);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2.5px);
  box-shadow: 0 8px 22px rgba(233, 193, 118, 0.18);
  border-color: var(--brand-gold-hover);
}

.stat-icon {
  width: 44px;
  height: 44px;
  background-color: rgba(233, 193, 118, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-gold);
  flex-shrink: 0;
}

.stat-icon svg {
  width: 20px;
  height: 20px;
}

.stat-info {
  flex-grow: 1;
}

.stat-info h3 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-secondary);
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-info .stat-value {
  font-size: 1.15rem;
  font-weight: 800;
  font-family: var(--font-header);
  color: var(--text-primary);
}

/* Progress bar inside card */
.progress-bar-container {
  width: 100%;
  height: 6px;
  background-color: var(--bg-secondary);
  border-radius: 10px;
  margin-top: 8px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--brand-gold);
  border-radius: 10px;
  transition: width 0.5s ease-out;
}

/* Dashboard Info Grid (Estudio y Novedades) */
.dashboard-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

@media (max-width: 768px) {
  .dashboard-info-grid {
    grid-template-columns: 1fr;
  }
}

.info-card-premium {
  background-color: var(--card-bg);
  border: 1px solid var(--brand-gold);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.info-card-premium:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(233, 193, 118, 0.12);
}

.info-card-premium h3 {
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--brand-gold);
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.info-card-premium ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-card-premium ul li {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-primary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.info-card-premium ul li strong {
  color: var(--brand-gold);
}

.info-card-premium ul li svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--brand-gold);
}

/* ==========================================================================
   VIDEO PLAYER & MARCA DE AGUA (SEGURIDAD)
   ========================================================================== */
.video-section {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  overflow: hidden;
  margin-bottom: 28px;
}

.video-player-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #000;
}

/* Capa de Marca de Agua de Seguridad */
.watermark-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
  overflow: hidden;
}

.watermark-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 1fr);
  width: 100%;
  height: 100%;
  opacity: 0.08; /* Muy sutil para no molestar pero visible en capturas */
}

.watermark-text {
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: monospace;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-25deg);
  white-space: nowrap;
  text-shadow: 1px 1px 1px rgba(0,0,0,0.5);
}

/* Marca de agua flotante animada adicional */
.watermark-floating {
  position: absolute;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: monospace;
  color: #ffffff;
  opacity: 0.12;
  white-space: nowrap;
  pointer-events: none;
  z-index: 12;
  transform: rotate(-15deg);
  animation: floatWatermark 30s infinite linear;
}

@keyframes floatWatermark {
  0% { top: 10%; left: -10%; }
  25% { top: 75%; left: 30%; }
  50% { top: 40%; left: 75%; }
  75% { top: 80%; left: 20%; }
  100% { top: 10%; left: -10%; }
}

.video-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background: radial-gradient(circle, #001a36 0%, #020912 100%);
  text-align: center;
  padding: 30px;
}

.play-button-trigger {
  width: 58px;
  height: 58px;
  background-color: rgba(233, 193, 118, 0.12);
  border: 1px solid var(--brand-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-gold);
  margin-bottom: 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.play-button-trigger:hover {
  transform: scale(1.08);
  background-color: rgba(233, 193, 118, 0.22);
  box-shadow: 0 0 20px rgba(233, 193, 118, 0.4);
}

.play-button-trigger svg {
  width: 28px;
  height: 28px;
}

.video-placeholder h3 {
  font-family: var(--font-header);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.video-placeholder p {
  color: rgba(255,255,255,0.6);
  font-size: 0.82rem;
  max-width: 440px;
}

.video-meta-bar {
  padding: 16px 24px;
  background-color: var(--card-bg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.video-meta-title {
  font-family: var(--font-header);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.video-security-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--brand-gold);
  padding: 4px 10px;
  background-color: rgba(233, 193, 118, 0.08);
  border: 1px solid rgba(233, 193, 118, 0.2);
  border-radius: 4px;
}

/* ==========================================================================
   NAVEGACIÓN POR PESTAÑAS (TABS)
   ========================================================================== */
.tabs-navigation {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.tab-btn {
  background: none;
  border: none;
  padding: 12px 20px;
  font-family: var(--font-header);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.tab-btn:hover {
  color: var(--brand-gold);
}

.tab-btn.active {
  color: var(--text-primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--brand-gold);
  border-radius: 3px 3px 0 0;
}

.tab-content {
  display: none;
  animation: tabFadeIn 0.35s ease forwards;
}

.tab-content.active {
  display: block;
}

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

/* Reading Pane */
.reading-pane {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 36px 40px;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  position: relative;
}

/* Estilo para los textos renderizados desde Markdown */
.markdown-body {
  font-size: 1rem;
  color: var(--text-primary);
}

.markdown-body h1, 
.markdown-body h2 {
  font-family: var(--font-header);
  font-weight: 800;
  color: var(--brand-navy);
  margin-top: 32px;
  margin-bottom: 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
  line-height: 1.35;
}

[data-theme="dark"] .markdown-body h1,
[data-theme="dark"] .markdown-body h2 {
  color: var(--brand-gold);
}

.markdown-body h1 {
  font-size: 1.5rem;
}
.markdown-body h2 {
  font-size: 1.3rem;
  border-left: 4px solid var(--brand-gold);
  padding-left: 12px;
}

.markdown-body h3 {
  font-family: var(--font-header);
  font-size: 1.12rem;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 10px;
}

.markdown-body h4 {
  font-family: var(--font-header);
  font-size: 1rem;
  font-weight: 650;
  margin-top: 18px;
  margin-bottom: 8px;
}

.markdown-body p {
  margin-bottom: 16px;
}

.markdown-body ul, 
.markdown-body ol {
  margin-bottom: 18px;
  padding-left: 20px;
}

.markdown-body li {
  margin-bottom: 6px;
}

/* Tablas Premium en material de lectura */
.markdown-body table {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.9rem;
}

.markdown-body th, 
.markdown-body td {
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  text-align: left;
}

.markdown-body th {
  background-color: var(--bg-secondary);
  font-family: var(--font-header);
  font-weight: 700;
  color: var(--text-primary);
}

.markdown-body blockquote {
  border-left: 4px solid var(--brand-gold);
  background-color: var(--bg-secondary);
  padding: 14px 18px;
  margin-bottom: 18px;
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* Cajas de Alerta Personalizadas */
.markdown-body .alert-tip, 
.markdown-body .alert-warning,
.markdown-body .alert-danger {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 18px;
  border-left: 4px solid;
  display: block;
}

.markdown-body .alert-tip {
  background-color: rgba(32, 191, 107, 0.06);
  border-color: var(--success);
}
.markdown-body .alert-warning {
  background-color: rgba(247, 183, 49, 0.06);
  border-color: var(--warning);
}
.markdown-body .alert-danger {
  background-color: rgba(235, 59, 90, 0.06);
  border-color: var(--error);
}

/* Pie de lectura: botones anterior, siguiente y checkbox de lección completada */
.lesson-navigation-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  margin-top: 32px;
  padding-top: 24px;
}

.lesson-completion-card {
  display: flex;
  align-items: center;
}

.completion-checkbox-label {
  display: inline-flex;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  gap: 8px;
}

.completion-checkbox-label input {
  display: none;
}

.custom-checkbox {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  display: inline-block;
  position: relative;
  transition: all var(--transition-fast);
}

.completion-checkbox-label input:checked + .custom-checkbox {
  background-color: var(--success);
  border-color: var(--success);
}

.completion-checkbox-label input:checked + .custom-checkbox::after {
  content: '✓';
  color: #fff;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.75rem;
  font-weight: 700;
}

/* ==========================================================================
   INTERFAZ DE CUESTIONARIOS (QUIZ ENGINE UI)
   ========================================================================== */
.quiz-container {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 36px 40px;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
}

.quiz-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.quiz-title {
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 800;
}

.quiz-progress-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.question-block {
  margin-bottom: 24px;
}

.question-text {
  font-family: var(--font-header);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 18px;
  line-height: 1.45;
  color: var(--text-primary);
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--bg-primary);
}

.option-card:hover {
  border-color: var(--brand-gold);
  background-color: var(--bg-secondary);
}

.option-card.selected {
  border-color: var(--brand-gold);
  background-color: rgba(233, 193, 118, 0.06);
}

.option-badge {
  width: 24px;
  height: 24px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.option-card.selected .option-badge {
  background-color: var(--brand-gold);
  color: var(--brand-navy);
  border-color: var(--brand-gold);
}

/* Estilos de respuesta correcta/incorrecta evaluada */
.option-card.correct {
  border-color: var(--success);
  background-color: rgba(32, 191, 107, 0.05);
}
.option-card.correct .option-badge {
  background-color: var(--success);
  color: #fff;
  border-color: var(--success);
}

.option-card.wrong {
  border-color: var(--error);
  background-color: rgba(235, 59, 90, 0.05);
}
.option-card.wrong .option-badge {
  background-color: var(--error);
  color: #fff;
  border-color: var(--error);
}

.option-text {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Caja de retroalimentación (Feedback Box) */
.quiz-feedback-box {
  padding: 16px 20px;
  border-radius: 8px;
  margin-top: 20px;
  border-left: 4px solid;
  animation: fadeIn 0.3s ease;
}

.quiz-feedback-box.correct-feedback {
  background-color: rgba(32, 191, 107, 0.06);
  border-color: var(--success);
}

.quiz-feedback-box.wrong-feedback {
  background-color: rgba(235, 59, 90, 0.06);
  border-color: var(--error);
}

.feedback-title {
  font-family: var(--font-header);
  font-weight: 800;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.correct-text { color: var(--success); }
.wrong-text { color: var(--error); }

.feedback-text {
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.quiz-footer {
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--border-color);
  padding-top: 18px;
  margin-top: 24px;
}

/* Tarjeta de resultados al finalizar el quiz */
.quiz-results-card {
  text-align: center;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.results-score-circle {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 4px solid;
}

.results-score-circle.pass {
  border-color: var(--success);
  color: var(--success);
  background-color: rgba(32, 191, 107, 0.05);
}

.results-score-circle.fail {
  border-color: var(--error);
  color: var(--error);
  background-color: rgba(235, 59, 90, 0.05);
}

.score-number {
  font-size: 1.75rem;
  font-weight: 800;
  font-family: var(--font-header);
  line-height: 1;
}

.score-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

.results-title {
  font-family: var(--font-header);
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.results-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 440px;
  margin-bottom: 24px;
  line-height: 1.5;
}

/* ==========================================================================
   CENTRO DE FORMULARIOS IRS (FORMS HUB UI)
   ========================================================================== */
.forms-hub-header {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 24px;
}

.forms-hub-intro h2 {
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.forms-hub-intro p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.search-input-container {
  display: flex;
  align-items: center;
  background-color: var(--input-bg);
  border: 1.5px solid var(--border-color);
  border-radius: 30px;
  padding: 0 16px;
  width: 320px;
  height: 40px;
  transition: border-color var(--transition-fast);
}

.search-input-container:focus-within {
  border-color: var(--brand-gold);
}

.search-icon {
  width: 16px;
  height: 16px;
  color: var(--text-secondary);
  margin-right: 10px;
}

.search-input {
  background: none;
  border: none;
  width: 100%;
  height: 100%;
  font-size: 0.82rem;
  color: var(--text-primary);
}

.search-input:focus {
  outline: none;
}

.forms-list-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-item-row {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 18px 24px;
  box-shadow: var(--card-shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: border-color var(--transition-fast);
}

.form-item-row:hover {
  border-color: rgba(233, 193, 118, 0.35);
}

.form-info-side {
  flex-grow: 1;
  padding-right: 20px;
}

.form-badge-name {
  font-family: var(--font-header);
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--brand-gold);
  margin-bottom: 4px;
  display: inline-block;
  padding: 2px 8px;
  background-color: rgba(233, 193, 118, 0.08);
  border-radius: 4px;
  border: 1px solid rgba(233, 193, 118, 0.2);
}

[data-theme="dark"] .form-badge-name {
  background-color: rgba(233, 193, 118, 0.15);
}

.form-title-es {
  font-family: var(--font-header);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.form-title-en {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 8px;
}

.form-description-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.form-download-side {
  flex-shrink: 0;
}

.form-download-side .btn {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   ADAPTACIÓN PARA MÓVILES (RESPONSIVE MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .mobile-header-menu-btn {
    display: block;
  }
  
  .top-header {
    padding: 10px 20px;
    max-width: 100%;
    overflow: hidden;
  }
  
  .header-title-container h1 {
    font-size: 1rem;
    white-space: normal;
    word-wrap: break-word;
  }
  
  .student-email {
    display: none !important;
  }
  
  .student-badge {
    padding: 4px;
    background-color: transparent;
    border: none;
    gap: 0;
  }
  
  .main-wrapper {
    margin-left: 0;
    max-width: 100%;
    overflow-x: hidden;
  }
  
  .content-body {
    padding: 20px;
  }
  
  .reading-pane, 
  .quiz-container {
    padding: 24px;
  }
  
  .forms-hub-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .search-input-container {
    width: 100%;
  }
  
  .form-item-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  .form-download-side {
    width: 100%;
  }
  
  .form-download-side .btn {
    width: 100%;
  }
}

/* ==========================================================================
   RUTA DE APRENDIZAJE (DASHBOARD SYLLABUS ITINERARY)
   ========================================================================== */
.learning-path-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 15px;
}

.learning-path-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: var(--card-shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.learning-path-card:hover {
  transform: translateY(-2px);
  border-color: rgba(233, 193, 118, 0.4);
}

.learning-path-card.completed {
  border-left: 4px solid var(--success);
}

.learning-path-card.active-module {
  border-left: 4px solid var(--brand-gold);
}

.learning-path-card.locked {
  opacity: 0.85;
}

.learning-path-info {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-grow: 1;
}

.learning-path-number {
  width: 48px;
  height: 48px;
  background-color: rgba(233, 193, 118, 0.08);
  border: 1px solid rgba(233, 193, 118, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-header);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--brand-gold);
  flex-shrink: 0;
}

.learning-path-card.completed .learning-path-number {
  background-color: rgba(32, 191, 107, 0.08);
  border-color: rgba(32, 191, 107, 0.2);
  color: var(--success);
}

.learning-path-details {
  flex-grow: 1;
  padding-right: 20px;
}

.learning-path-details h4 {
  font-family: var(--font-header);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.learning-path-details p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 8px;
}

.learning-path-progress-container {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 240px;
}

.learning-path-progress-bar {
  flex-grow: 1;
  height: 6px;
  background-color: var(--bg-secondary);
  border-radius: 10px;
  overflow: hidden;
}

.learning-path-progress-fill {
  height: 100%;
  background-color: var(--brand-gold);
  border-radius: 10px;
}

.learning-path-card.completed .learning-path-progress-fill {
  background-color: var(--success);
}

.learning-path-progress-text {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  min-width: 60px;
}

.learning-path-action {
  flex-shrink: 0;
}

/* Related forms box */
.related-forms-box {
  margin-top: 40px;
  padding: 24px;
  background-color: var(--bg-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
}

@media (max-width: 768px) {
  .learning-path-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  .learning-path-progress-container {
    width: 100%;
  }
  
  .learning-path-action {
    width: 100%;
  }
  
  .learning-path-action .btn {
    width: 100%;
  }
}

/* ==========================================================================
   ESCUDO DE SEGURIDAD - EFECTO BLUR (ANTI-SCREENSHOT)
   ========================================================================== */
.blur-content {
  filter: blur(25px) !important;
  pointer-events: none !important;
  user-select: none !important;
  transition: filter 0.15s ease-out !important;
}

/* ==========================================================================
   OPTIMIZACIONES EXCLUSIVAS PARA DISPOSITIVOS MÓVILES (VISTA MÓVIL)
   ========================================================================== */
@media (max-width: 480px) {
  /* 1. Cabecera Móvil Limpia y Espaciada */
  .top-header {
    padding: 10px 12px;
    gap: 8px;
  }
  
  .header-title-container {
    margin-right: 8px;
    gap: 6px;
  }
  
  .header-title-container h1 {
    font-size: 0.88rem;
    line-height: 1.25;
    letter-spacing: -0.3px;
  }
  
  .mobile-header-menu-btn {
    font-size: 1.35rem;
    margin-right: 6px;
  }
  
  .header-controls {
    gap: 8px;
  }
  
  /* Ocultar el texto del correo en móvil para mostrar solo el avatar circular */
  .student-email {
    display: none !important;
  }
  
  .student-badge {
    padding: 4px;
    background-color: transparent;
    border: none;
    gap: 0;
  }
  
  .student-avatar {
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
  }
  
  /* 2. Cuerpo y Márgenes de Contenido */
  .content-body {
    padding: 12px;
  }
  
  /* 3. Tarjeta de Bienvenida (Welcome Card) */
  .welcome-card {
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 16px;
  }
  
  .welcome-card h2 {
    font-size: 1.25rem;
    line-height: 1.3;
    margin-bottom: 8px;
  }
  
  .welcome-card p {
    font-size: 0.84rem;
    line-height: 1.5;
  }
  
  .welcome-card .btn {
    width: 100%;
    margin-top: 12px;
    padding: 10px 16px;
    font-size: 0.85rem;
  }

  /* 4. Estadísticas del Dashboard (Stats Cards) */
  .dashboard-stats {
    gap: 12px;
    margin-bottom: 16px;
  }
  
  .stat-card {
    padding: 14px;
    gap: 10px;
    border-radius: 8px;
  }
  
  .stat-icon {
    width: 38px;
    height: 38px;
  }
  
  .stat-icon svg {
    width: 18px;
    height: 18px;
  }
  
  .stat-info .stat-value {
    font-size: 1rem;
  }
  
  .stat-info .stat-label {
    font-size: 0.65rem;
  }

  /* 5. Tarjetas de Información Premium */
  .info-card-premium {
    padding: 16px;
    border-radius: 10px;
    gap: 10px;
  }
  
  .info-card-premium h3 {
    font-size: 1.05rem;
  }
  
  .info-card-premium p {
    font-size: 0.82rem;
  }
  
  .tips-list li, .news-list li {
    font-size: 0.8rem;
    gap: 8px;
  }

  /* 6. Ruta de Aprendizaje (Syllabus) */
  .learning-path-card {
    padding: 16px;
    border-radius: 10px;
    gap: 12px;
  }
  
  .learning-path-num {
    font-size: 1rem;
    width: 28px;
    height: 28px;
  }
  
  .learning-path-title {
    font-size: 0.95rem;
  }
  
  .learning-path-desc {
    font-size: 0.78rem;
  }

  /* 7. Reproductores y Metadatos de Video */
  .video-section {
    margin-bottom: 16px;
  }
  
  .video-meta-bar {
    padding: 10px 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .video-meta-title {
    font-size: 0.9rem;
  }
  
  /* 8. Panel de Lectura (Reading Pane) y Paginación */
  .reading-pane {
    padding: 16px;
    border-radius: 10px;
  }
  
  .lesson-content h1 {
    font-size: 1.3rem;
  }
  
  .lesson-content h2 {
    font-size: 1.15rem;
  }
  
  .lesson-content h3 {
    font-size: 1rem;
  }
  
  .lesson-content p, .lesson-content li {
    font-size: 0.85rem;
    line-height: 1.5;
  }
  
  .lesson-navigation-footer {
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
    margin-top: 24px;
    padding-top: 16px;
  }
  
  .lesson-completion-card {
    order: 1;
    justify-content: center;
    margin-bottom: 4px;
  }
  
  #next-lesson-btn {
    order: 2;
    width: 100%;
    justify-content: center;
  }
  
  #prev-lesson-btn {
    order: 3;
    width: 100%;
    justify-content: center;
  }
  
  #prev-lesson-btn:disabled {
    display: none !important;
  }
}

/* ==========================================================================
   INTERFAZ DE ACCESO (LOGIN SCREEN & LOGOUT BUTTON)
   ========================================================================== */
.login-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, #00264d, #001224);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100000;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-sizing: border-box;
}

.login-container.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(1.05);
}

.login-card {
  background: rgba(0, 28, 58, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(233, 193, 118, 0.2);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 440px;
  text-align: center;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
  animation: loginFadeIn 0.5s ease-out;
  box-sizing: border-box;
}

@keyframes loginFadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-logo-container {
  margin-bottom: 20px;
}

.login-logo {
  height: 60px;
  object-fit: contain;
}

.login-card h2 {
  font-family: var(--font-header, 'Outfit', sans-serif);
  color: #f8fafc;
  font-size: 1.8rem;
  margin-top: 0;
  margin-bottom: 5px;
}

.login-card h2 span {
  color: var(--brand-gold, #e9c176);
}

.login-subtitle {
  color: rgba(248, 250, 252, 0.6);
  font-size: 0.95rem;
  margin-top: 0;
  margin-bottom: 30px;
  letter-spacing: 1px;
}

.login-form {
  text-align: left;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand-gold, #e9c176);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.35);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: #fff;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: var(--brand-gold, #e9c176);
  background: rgba(0, 0, 0, 0.5);
  box-shadow: 0 0 0 3px rgba(233, 193, 118, 0.15);
}

.login-error-msg {
  background: rgba(235, 59, 90, 0.12);
  border: 1.5px solid rgba(235, 59, 90, 0.35);
  color: #ff5e7e;
  padding: 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 20px;
  text-align: center;
  font-weight: 600;
}

.login-error-msg.hidden {
  display: none;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.login-footer {
  margin-top: 30px;
  font-size: 0.78rem;
  color: rgba(248, 250, 252, 0.4);
  line-height: 1.4;
}

.login-footer p {
  margin-bottom: 15px;
}

.login-footer span {
  display: block;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 15px;
}

/* Botón de Logout */
.logout-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  margin-left: 10px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.logout-btn:hover {
  color: #eb3b5a;
  background: rgba(235, 59, 90, 0.1);
}

[data-theme="light"] .logout-btn {
  color: rgba(0, 28, 58, 0.5);
}

[data-theme="light"] .logout-btn:hover {
  color: #eb3b5a;
  background: rgba(235, 59, 90, 0.06);
}

@media (max-width: 480px) {
  .login-card {
    padding: 24px 20px;
    border-radius: 12px;
  }
  
  .login-card h2 {
    font-size: 1.5rem;
  }
}

/* ==========================================================================
   INTERFAZ DE CONSULTAS Q&A Y PANEL DE ADMINISTRACIÓN (PROFESORA)
   ========================================================================== */

/* Botón Flotante Q&A */
.qa-floating-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: linear-gradient(135deg, var(--brand-navy-light), var(--brand-navy));
  border: 1px solid rgba(233, 193, 118, 0.3);
  color: var(--brand-gold);
  padding: 12px 20px;
  border-radius: 30px;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(0, 26, 54, 0.3);
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 0.88rem;
  transition: all var(--transition-normal);
}

.qa-floating-btn:hover {
  transform: translateY(-3px) scale(1.02);
  border-color: var(--brand-gold);
  box-shadow: 0 12px 30px rgba(233, 193, 118, 0.2);
}

.qa-floating-btn svg {
  width: 20px;
  height: 20px;
}

/* Drawer Desplizable Q&A */
.qa-drawer {
  position: fixed;
  top: 0;
  right: -420px;
  width: 400px;
  height: 100%;
  background-color: var(--bg-primary);
  border-left: 1px solid var(--border-color);
  box-shadow: -10px 0 35px rgba(0, 26, 54, 0.15);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.qa-drawer.open {
  right: 0;
}

.qa-drawer-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(0, 26, 54, 0.02);
}

[data-theme="dark"] .qa-drawer-header {
  background-color: rgba(255, 255, 255, 0.01);
}

.qa-drawer-header h3 {
  margin: 0;
  font-family: var(--font-header);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.qa-drawer-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  padding: 0;
}

.qa-drawer-close:hover {
  color: var(--error);
}

.qa-drawer-body {
  padding: 24px;
  overflow-y: auto;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Banner de Contexto de Pregunta */
.qa-context-banner {
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.8rem;
  margin-bottom: 14px;
  line-height: 1.4;
}

.qa-context-label {
  font-weight: 700;
  color: var(--brand-gold);
  margin-right: 4px;
}

.qa-context-value {
  color: var(--text-primary);
  font-weight: 600;
}

/* Contenedor de Historial */
.qa-history-container h4 {
  font-family: var(--font-header);
  font-size: 0.95rem;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

.qa-history-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.qa-empty-state {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 30px 10px;
  border: 1px dashed var(--border-color);
  border-radius: 8px;
}

/* Tarjeta de Pregunta en Historial */
.qa-question-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  box-shadow: 0 4px 12px rgba(0, 26, 54, 0.02);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.qa-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.qa-card-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
}

.qa-card-badge.pending {
  background-color: rgba(247, 183, 49, 0.08);
  color: var(--warning);
  border: 1px solid rgba(247, 183, 49, 0.15);
}

.qa-card-badge.answered {
  background-color: rgba(32, 191, 107, 0.08);
  color: var(--success);
  border: 1px solid rgba(32, 191, 107, 0.15);
}

.qa-card-question {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.45;
}

.qa-card-answer {
  background-color: var(--bg-secondary);
  border-left: 3px solid var(--brand-gold);
  padding: 10px 12px;
  border-radius: 0 6px 6px 0;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--text-primary);
  margin-top: 4px;
}

.qa-card-answer-label {
  font-weight: 700;
  color: var(--brand-gold);
  font-size: 0.72rem;
  text-transform: uppercase;
  margin-bottom: 3px;
  display: block;
}

/* Estilos de la Barra Lateral para Admin */
.badge-count {
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 10px;
  margin-left: auto;
  line-height: 1;
}

.badge-red {
  background-color: var(--error);
  color: #fff;
}

.badge-gold {
  background-color: var(--brand-gold);
  color: var(--brand-navy);
}

/* ==========================================
   PANEL DE ADMINISTRACIÓN (PROFESORA)
   ========================================== */
.admin-dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  flex-wrap: wrap;
  gap: 16px;
}

.admin-dashboard-header h2 {
  font-family: var(--font-header);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 4px 0;
}

.admin-dashboard-header p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin: 0;
}

.admin-pane {
  margin-bottom: 24px;
  animation: fadeIn 0.3s ease;
}

.admin-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
}

/* Tabla de Estudiantes */
.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.admin-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Tarjetas de Dudas Pendientes y Matches en Admin */
.admin-qa-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-qa-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.admin-student-name {
  font-weight: 700;
  color: var(--text-primary);
}

.admin-lesson-tag {
  background-color: rgba(233, 193, 118, 0.08);
  border: 1px solid rgba(233, 193, 118, 0.15);
  color: var(--brand-gold);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.admin-question-text {
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.5;
  font-weight: 600;
  background-color: var(--card-bg);
  padding: 10px 14px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.admin-reply-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.admin-reply-textarea {
  width: 100%;
  min-height: 90px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  color: var(--text-primary);
  font-size: 0.85rem;
  line-height: 1.5;
  resize: vertical;
  box-sizing: border-box;
  overflow-y: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.admin-reply-textarea:focus {
  outline: none;
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px rgba(233, 193, 118, 0.15);
}


.admin-reply-actions {
  display: flex;
  justify-content: flex-end;
}

/* Tarjeta Match Especial */
.admin-match-card {
  border-left: 4px solid var(--brand-gold);
}

.admin-match-students-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--card-bg);
  padding: 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.admin-match-student-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  font-size: 0.8rem;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 6px;
  margin-bottom: 4px;
}

.admin-match-student-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

/* Responsivo para móviles */
@media (max-width: 480px) {
  .qa-floating-btn {
    bottom: 16px;
    right: 16px;
    padding: 10px 16px;
    font-size: 0.8rem;
  }
  
  .qa-drawer {
    width: 100%;
    right: -105%;
  }
}

@media (max-width: 900px) {
  .admin-history-grid {
    grid-template-columns: 1fr !important;
  }
}

@keyframes blink {
  0% { opacity: 1; }
  50% { opacity: 0.3; }
  100% { opacity: 1; }
}

/* ==========================================
   ESTILOS PREMIUM PARA AUDIO Y Q&A EN VIVO (LIVE)
   ========================================== */
.live-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 992px) {
  .live-grid {
    grid-template-columns: 1fr;
  }
}

.live-message-bubble {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  line-height: 1.4;
  margin-bottom: 6px;
}

.live-message-bubble.featured {
  background-color: rgba(235, 94, 40, 0.08);
  border: 1px dashed #eb5e28;
  animation: pulse-border 2s infinite;
}

.live-message-bubble.my-message {
  border-left: 3px solid var(--brand-gold);
}

.live-message-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--brand-gold);
  margin-bottom: 3px;
}

.live-message-text {
  color: var(--text-primary);
}

/* Etiquetas e indicadores de Audio */
.audio-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: rgba(233, 193, 118, 0.08);
  border: 1px solid rgba(233, 193, 118, 0.2);
  color: var(--brand-gold);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 4px;
}

.audio-tag.recorded {
  background-color: rgba(235, 59, 90, 0.08);
  border: 1px solid rgba(235, 59, 90, 0.2);
  color: #ff4757;
}

/* Estilo general para reproductores */
audio::-webkit-media-controls-panel {
  background-color: #00264d;
}
audio::-webkit-media-controls-current-time-display,
audio::-webkit-media-controls-time-remaining-display {
  color: var(--text-primary);
}

/* Animaciones de Pulso */
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.02); opacity: 1; }
  100% { transform: scale(1); opacity: 0.9; }
}

@keyframes pulse-border {
  0% { border-color: #eb5e28; }
  50% { border-color: rgba(235, 94, 40, 0.1); }
  100% { border-color: #eb5e28; }
}

/* ==========================================================================
   WIDGET Y MODAL DE VERSÍCULOS BÍBLICOS (SABIDURÍA & FE)
   ========================================================================== */

/* Tarjeta del Versículo en el Dashboard */
.bible-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--brand-gold);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  margin-bottom: 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-normal);
}

.bible-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(233, 193, 118, 0.1);
  border-color: rgba(233, 193, 118, 0.4);
}

.bible-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 8px;
}

.bible-card-tag {
  font-family: var(--font-header);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--brand-gold);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.btn-expand-bible {
  background: none;
  border: none;
  color: var(--brand-gold);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.btn-expand-bible:hover {
  color: var(--brand-gold-hover);
  transform: translateX(3px);
}

.bible-card-body .bible-verse-text {
  font-size: 1.02rem;
  font-style: italic;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.bible-card-body .bible-verse-citation {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--brand-gold);
  text-align: right;
  margin-bottom: 12px;
}

.bible-card-body .bible-verse-interpretation {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ff9f43; /* Naranja/dorado vibrante con fuerza espiritual */
  line-height: 1.5;
  border-top: 1px dashed rgba(255, 255, 255, 0.05);
  padding-top: 10px;
}

/* Modal de Versículos */
.bible-modal-card {
  max-width: 580px;
  width: 100%;
  position: relative;
  border: 1px solid var(--brand-gold);
  box-shadow: var(--card-shadow);
  background: var(--card-bg) !important;
  animation: bibleModalIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes bibleModalIn {
  from { transform: scale(0.92) translateY(30px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.bible-modal-header {
  position: relative;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 18px;
}

.bible-modal-close {
  position: absolute;
  top: -6px;
  right: -6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.4rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

.bible-modal-close:hover {
  background-color: var(--error);
  color: #ffffff;
  border-color: var(--error);
  transform: rotate(90deg);
}

.bible-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  overflow-x: auto;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  scrollbar-width: thin;
  scrollbar-color: rgba(233, 193, 118, 0.2) transparent;
}

.bible-tabs::-webkit-scrollbar {
  height: 4px;
}
.bible-tabs::-webkit-scrollbar-thumb {
  background: rgba(233, 193, 118, 0.2);
  border-radius: 4px;
}

.bible-tab {
  background: none;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.bible-tab:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

.bible-tab.active {
  color: var(--brand-gold);
  background-color: rgba(233, 193, 118, 0.1);
  border: 1px solid rgba(233, 193, 118, 0.3);
}

.bible-verse-container {
  background-color: rgba(0, 0, 0, 0.15);
  border-radius: 12px;
  padding: 26px;
  margin-bottom: 24px;
  position: relative;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.quote-mark {
  font-family: Georgia, serif;
  font-size: 4rem;
  line-height: 1;
  color: rgba(233, 193, 118, 0.1);
  position: absolute;
  user-select: none;
}

.open-quote {
  top: 6px;
  left: 12px;
}

.close-quote {
  bottom: -16px;
  right: 12px;
}

.modal-verse-text {
  font-size: 1.1rem;
  font-style: italic;
  font-weight: 500;
  line-height: 1.65;
  color: var(--text-primary);
  text-align: center;
  position: relative;
  z-index: 2;
  margin-bottom: 10px;
}

.modal-verse-citation {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--brand-gold);
  text-align: center;
  position: relative;
  z-index: 2;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.modal-verse-interpretation-box {
  background-color: rgba(233, 193, 118, 0.05);
  border-left: 3px solid var(--brand-gold);
  padding: 12px 16px;
  border-radius: 4px;
  position: relative;
  z-index: 2;
  text-align: left;
}

.modal-verse-interpretation-box strong {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--brand-gold);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.modal-verse-interpretation {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-primary);
  font-weight: 500;
}

.bible-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.bible-actions .btn {
  flex: 1;
  font-size: 0.85rem;
}

.btn-success {
  background-color: var(--success) !important;
  color: #ffffff !important;
  border-color: var(--success) !important;
}

/* Efectos en el botón del encabezado */
#header-bible-btn {
  position: relative;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

#header-bible-btn:hover {
  transform: scale(1.1);
  color: var(--brand-gold);
}

/* Modal de Pasarela de Pago (Simulator & Production) Overlay */
.bible-modal-overlay {
  z-index: 10000;
  background: rgba(0, 26, 54, 0.85);
  backdrop-filter: blur(12px);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  opacity: 1;
  pointer-events: auto;
}

.bible-modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

/* Asegurar que el modal de pago siempre se muestre por encima del login */
#payment-simulator-modal {
  z-index: 200000;
}