/*
 * ================================================================
 * FICHAS.ES - CSS DEFINITIVO v2.0
 * ================================================================
 * 
 * Fecha: Enero 2026
 * Descripción: CSS completo y optimizado para fichas educativas
 * 
 * ================================================================
 * ÍNDICE
 * ================================================================
 * 
 * 1. VARIABLES GLOBALES
 * 2. BREADCRUMBS STICKY
 * 3. LAYOUT Y WRAPPERS
 * 4. COMPONENTES COMPARTIDOS
 *    4.1. Hero Sections
 *    4.2. Stats Boxes
 *    4.3. Badges y Pills
 *    4.4. Cards de Fichas MINIMALISTAS (MEJORADAS)
 *    4.5. FAQ ACCORDION
 * 5. FRONT-PAGE
 * 6. HUB NIVEL
 * 7. HUB CURSO
 * 8. HUB ASIGNATURA
 * 9. SINGLE FICHA
 * 10. FICHA EDUCATIVA INTERACTIVA
 * 11. NAVEGACIÓN ENTRE FICHAS
 * 12. CONTENIDO SEO
 * 13. RESPONSIVE
 * 
 * ================================================================
 */


/* ================================================================
   1. VARIABLES GLOBALES
   ================================================================ */

:root {
    --color-primary: #2571A3;
    --color-primary-dark: #1a5276;
    --color-secondary: #fbbf24;
    --color-success: #10b981;
    --color-info: #3b82f6;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;

    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-text-muted: #9ca3af;

    --color-gray-50: #f9fafb;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}


/* ================================================================
   2. BREADCRUMBS STICKY
   👈 EDITAR: Ajustar valores de 'top' según tu header
   ================================================================ */

.site-breadcrumbs {
    position: sticky;
    top: 60px; /* 👈 AJUSTAR según altura de tu header */
    z-index: 999;
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-gray-200);
    transition: var(--transition-normal);
}

.breadcrumbs-list,
.breadcrumb-trail {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0 20px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    font-size: 0.9rem;
}

.breadcrumb-item,
.breadcrumb-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-item a,
.breadcrumb-nav-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    padding: 4px 8px;
    border-radius: 4px;
}

.breadcrumb-item a:hover,
.breadcrumb-nav-item a:hover {
    color: var(--color-primary-dark);
    background: var(--color-gray-100);
}

.breadcrumb-item span,
.breadcrumb-nav-item span {
    color: var(--color-text);
    font-weight: 600;
    padding: 4px 8px;
}

.breadcrumb-separator {
    color: var(--color-text-muted);
    font-size: 0.9em;
    user-select: none;
    margin: 0 2px;
}

.admin-bar .site-breadcrumbs {
    top: calc(60px + 32px); /* 👈 AJUSTAR: 60px header + 32px admin bar */
}


/* ================================================================
   3. LAYOUT Y WRAPPERS
   ================================================================ */

.nivel-wrapper,
.curso-wrapper,
.curso-asignatura-wrapper,
.ficha-wrapper,
.home-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.content-wrapper,
.content-seo-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hubs: ampliar ancho del FAQ sin afectar front-page */
.nivel-wrapper .bloque-mini-faq .contenido-wrapper,
.curso-wrapper .bloque-mini-faq .contenido-wrapper,
.curso-asignatura-wrapper .bloque-mini-faq .contenido-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* FAQ acordeon: alinear ancho con fichas destacadas en hubs */
.nivel-wrapper .faq-acordeon,
.curso-wrapper .faq-acordeon,
.curso-asignatura-wrapper .faq-acordeon {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}


/* ================================================================
   4. COMPONENTES COMPARTIDOS
   ================================================================ */

/* ----------------------------------------------------------------
   4.1. HERO SECTIONS - Base común
   ---------------------------------------------------------------- */

.nivel-hero,
.curso-hero,
.curso-asignatura-hero,
.hero-home {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: 80px 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: 50px;
    box-shadow: var(--shadow-lg);
}

.nivel-hero-content,
.curso-hero-content,
.curso-asignatura-hero-content {
    max-width: 1000px;
    margin: 0 auto;
}

.nivel-titulo,
.curso-titulo,
.curso-asignatura-titulo {
    font-size: 2.8em;
    margin: 0 0 20px 0;
    font-weight: 800;
    line-height: 1.2;
    color: white;
}

.curso-descripcion {
    font-size: 1.2em;
    margin: 0 0 30px 0;
    opacity: 0.95;
    line-height: 1.6;
}

/* Subencabezados en hero sobre fondo oscuro */
.nivel-hero .curso-descripcion,
.curso-hero .curso-descripcion,
.curso-asignatura-hero .curso-descripcion {
    color: rgba(255, 255, 255, 0.92);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

.hero-badges,
.nivel-header-meta,
.curso-header-meta,
.curso-asignatura-header-meta {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.badge-nivel,
.badge-curso,
.badge-asignatura,
.hero-badge,
.nivel-badge-asig,
.curso-badge-asig,
.asignatura-badge-asig {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.curso-nivel-badge {
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.badge-tema-principal {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-warning) 100%);
    color: white;
}


/* ----------------------------------------------------------------
   4.2. STATS BOXES
   ---------------------------------------------------------------- */

.nivel-stats,
.curso-stats,
.curso-asignatura-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.stat-item {
    background: rgba(255, 255, 255, 0.2);
    padding: 20px 30px;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.stat-number {
    font-size: 2.5em;
    font-weight: 800;
    line-height: 1;
    display: block;
    margin-bottom: 8px;
}

.stat-icon {
    font-size: 1.8em;
    line-height: 1;
    margin-bottom: 8px;
    display: block;
}

.stat-label {
    font-size: 0.9em;
    opacity: 0.9;
    font-weight: 500;
}


/* ----------------------------------------------------------------
   4.3. BADGES Y PILLS
   ---------------------------------------------------------------- */

.badge-proximamente {
    background: var(--color-warning);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ficha-badge-asignatura {
    background: var(--color-info);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 600;
}

.ficha-badge-dificultad,
.badge-dificultad {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 600;
}

/* Colores de dificultad suaves (mejorados para legibilidad) */
.ficha-badge-dificultad.muy-facil,
.badge-dificultad.muy-facil { 
    background: #d1fae5; 
    color: #065f46;
}

.ficha-badge-dificultad.facil,
.badge-dificultad.facil { 
    background: #dbeafe; 
    color: #1e40af;
}

.ficha-badge-dificultad.medio,
.badge-dificultad.medio { 
    background: #fef3c7; 
    color: #92400e;
}

.ficha-badge-dificultad.dificil,
.badge-dificultad.dificil { 
    background: #fee2e2; 
    color: #991b1b;
}


/* ----------------------------------------------------------------
   4.4. CARDS DE FICHAS MINIMALISTAS (MEJORADAS) ⭐
   ----------------------------------------------------------------
   Usadas en: page-asignatura + fichas destacadas de hubs
   Diseño: Fondo blanco, texto oscuro, legibilidad máxima
   ---------------------------------------------------------------- */

/* Grids de fichas */
.fichas-grid,
.fichas-grid-modern,
.curso-asignatura-fichas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto 50px;
}

/* En hubs, forzar 3 columnas en desktop para consistencia */
.nivel-wrapper .fichas-grid,
.curso-wrapper .fichas-grid,
.curso-asignatura-wrapper .fichas-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Card base (para compatibilidad) */
.ficha-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    overflow: hidden;
    border: 2px solid var(--color-gray-200);
}

.ficha-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

/* Card minimalista - fondo blanco, legible ⭐ */
.ficha-card-mini,
.ficha-card-modern {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    overflow: visible;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.ficha-card-mini:hover,
.ficha-card-modern:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.15);
    border-color: var(--color-primary);
}

/* Link wrapper limpio */
.ficha-card-link,
.ficha-card-link-modern {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 0;
    background: transparent;
}

/* Header sutil - SIN gradiente fuerte, fondo gris claro ⭐ */
.ficha-card-mini .ficha-card-header,
.ficha-card-modern .ficha-card-header-modern {
    background: #f9fafb;
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
}

/* Badges pequeños y sutiles en el header ⭐ */
.ficha-card-mini .ficha-card-header .ficha-badge-asignatura,
.ficha-card-modern .ficha-card-header-modern .ficha-badge-asignatura {
    display: inline-block;
    background: #dbeafe;
    color: #1e40af;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75em;
    font-weight: 600;
    margin-right: 6px;
    margin-bottom: 8px;
}

.ficha-card-mini .ficha-card-header .ficha-badge-dificultad,
.ficha-card-modern .ficha-card-header-modern .ficha-badge-dificultad {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75em;
    font-weight: 600;
    margin-bottom: 8px;
}

/* Título legible en color oscuro ⭐ */
.ficha-card-mini .ficha-card-titulo,
.ficha-card-modern .ficha-card-titulo-modern {
    font-size: 1.15em;
    font-weight: 700;
    margin: 0;
    line-height: 1.4;
    color: #1f2937;
}

/* Body limpio */
.ficha-card-mini .ficha-card-body {
    padding: 20px;
    background: white;
}

/* Descripción si existe */
.ficha-card-descripcion-modern {
    font-size: 0.95em;
    color: var(--color-text-light);
    margin-bottom: 15px;
    line-height: 1.5;
}

/* Metadata clara con fondo ⭐ */
.ficha-card-mini .ficha-card-meta,
.ficha-card-modern .ficha-meta-modern {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #f3f4f6;
}

.ficha-card-mini .ficha-card-meta .meta-item,
.ficha-card-modern .ficha-meta-modern .meta-item-modern {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85em;
    color: #6b7280;
    background: #f9fafb;
    padding: 5px 10px;
    border-radius: 6px;
}

.meta-icon {
    font-size: 1.1em;
}

/* CTA con borde, relleno en hover ⭐ */
.ficha-card-mini .ficha-card-cta,
.ficha-card-footer-modern .ficha-card-cta {
    display: block;
    background: white;
    color: var(--color-primary);
    text-align: center;
    padding: 14px;
    margin: 15px 20px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95em;
    border: 2px solid var(--color-primary);
    transition: all 0.2s ease;
}

.ficha-card-mini .ficha-card-cta:hover,
.ficha-card-footer-modern .ficha-card-cta:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.ficha-card-arrow {
    margin-left: 8px;
    transition: transform 0.2s ease;
}

.ficha-card-link-modern:hover .ficha-card-arrow {
    transform: translateX(4px);
}
/* ================================================================
   FICHA CARDS V2 - DISEÑO MEJORADO HOMEPAGE
   Ribete superior con color por nivel educativo
   ================================================================ */

.ficha-card-mini-v2 {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.ficha-card-mini-v2:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

/* Link sin subrayado en hover */
.ficha-card-link-v2 {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none !important;
    color: inherit;
}

.ficha-card-link-v2:hover,
.ficha-card-link-v2:focus {
    text-decoration: none !important;
}

/* Evitar subrayado en todos los elementos internos */
.ficha-card-link-v2 * {
    text-decoration: none !important;
}

/* Header con ribete de color según nivel - ALTURA FIJA */
.ficha-card-header-v2 {
    padding: 14px 18px;
    min-height: 52px; /* ← Altura fija independiente del contenido */
    display: flex;
    align-items: center;
    border-bottom: 1px solid #f3f4f6;
    position: relative;
}

/* Ribete superior - INFANTIL (rosa-coral) */
.ficha-card-mini-v2.nivel-infantil .ficha-card-header-v2 {
    background: linear-gradient(135deg, #fce7f3 0%, #fecaca 100%);
    border-top: 4px solid #f093fb;
}

/* Ribete superior - PRIMARIA (azul) */
.ficha-card-mini-v2.nivel-primaria .ficha-card-header-v2 {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-top: 4px solid #2571A3;
}

/* Ribete superior - SECUNDARIA (índigo) */
.ficha-card-mini-v2.nivel-secundaria .ficha-card-header-v2 {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    border-top: 4px solid #4f46e5;
}

/* Hover: intensificar el color del ribete */
.ficha-card-mini-v2.nivel-infantil:hover .ficha-card-header-v2 {
    border-top-color: #f5576c;
    background: linear-gradient(135deg, #fce7f3 0%, #fbcfe8 100%);
}

.ficha-card-mini-v2.nivel-primaria:hover .ficha-card-header-v2 {
    border-top-color: #1a5276;
    background: linear-gradient(135deg, #dbeafe 0%, #93c5fd 100%);
}

.ficha-card-mini-v2.nivel-secundaria:hover .ficha-card-header-v2 {
    border-top-color: #3730a3;
    background: linear-gradient(135deg, #e0e7ff 0%, #a5b4fc 100%);
}

/* Badges en fila horizontal con wrap */
.badges-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

/* Badges minimalistas */
.badge-nivel-mini,
.badge-curso-mini,
.badge-asignatura-mini {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.75em;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
}

/* Badge Nivel - con fondo según nivel */
.nivel-infantil .badge-nivel-mini {
    background: #f093fb;
    color: white;
}

.nivel-primaria .badge-nivel-mini {
    background: #2571A3;
    color: white;
}

.nivel-secundaria .badge-nivel-mini {
    background: #4f46e5;
    color: white;
}

/* Badge Curso - tono neutro */
.badge-curso-mini {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
}

/* Badge Asignatura - tono azul claro */
.badge-asignatura-mini {
    background: #e0f2fe;
    color: #075985;
}

/* Cuerpo de la card */
.ficha-card-body-v2 {
    padding: 20px 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Título centrado */
.ficha-card-titulo-v2 {
    font-size: 1.15em;
    font-weight: 700;
    margin: 0;
    line-height: 1.4;
    color: #1f2937;
    text-align: center;
    min-height: 2.8em;
}

/* Meta información - MENOS PROTAGONISMO */
.ficha-card-meta-v2 {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    padding-top: 8px;
    border-top: 1px solid #f3f4f6;
}

.meta-item-v2 {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8em; /* ← Reducido de 0.85em */
    color: #9ca3af; /* ← Más gris que antes (#6b7280) */
    background: transparent; /* ← Sin fondo gris */
    padding: 0; /* ← Sin padding */
}

.meta-item-v2 .meta-icon {
    font-size: 1em;
    opacity: 0.7; /* ← Iconos más sutiles */
}

.meta-item-v2 .meta-text {
    font-weight: 500;
}

/* Footer con CTA */
.ficha-card-footer-v2 {
    padding: 0 18px 18px;
    margin-top: auto;
}

.ficha-card-cta-v2 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95em;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

/* Efecto hover chulo: fondo deslizante */
.ficha-card-cta-v2::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    transition: left 0.4s ease;
    z-index: 0;
}

.ficha-card-cta-v2 .cta-text,
.ficha-card-cta-v2 .cta-arrow {
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
}

/* CTA según nivel educativo - INFANTIL */
.nivel-infantil .ficha-card-cta-v2 {
    background: white;
    color: #f093fb;
    border-color: #f093fb;
}

.nivel-infantil .ficha-card-cta-v2::before {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.nivel-infantil:hover .ficha-card-cta-v2 {
    color: white;
}

.nivel-infantil:hover .ficha-card-cta-v2::before {
    left: 0;
}

/* CTA según nivel educativo - PRIMARIA */
.nivel-primaria .ficha-card-cta-v2 {
    background: white;
    color: #2571A3;
    border-color: #2571A3;
}

.nivel-primaria .ficha-card-cta-v2::before {
    background: linear-gradient(135deg, #2571A3 0%, #1a5276 100%);
}

.nivel-primaria:hover .ficha-card-cta-v2 {
    color: white;
}

.nivel-primaria:hover .ficha-card-cta-v2::before {
    left: 0;
}

/* CTA según nivel educativo - SECUNDARIA */
.nivel-secundaria .ficha-card-cta-v2 {
    background: white;
    color: #4f46e5;
    border-color: #4f46e5;
}

.nivel-secundaria .ficha-card-cta-v2::before {
    background: linear-gradient(135deg, #4f46e5 0%, #3730a3 100%);
}

.nivel-secundaria:hover .ficha-card-cta-v2 {
    color: white;
}

.nivel-secundaria:hover .ficha-card-cta-v2::before {
    left: 0;
}

/* Animación de flecha en hover */
.ficha-card-mini-v2:hover .cta-arrow {
    transform: translateX(4px);
}

/* ============================================
   RESPONSIVE - CARDS V2
   ============================================ */

@media (max-width: 768px) {
    .ficha-card-header-v2 {
        padding: 12px 16px;
        min-height: 48px;
    }
    
    .ficha-card-body-v2 {
        padding: 18px 16px;
    }
    
    .ficha-card-titulo-v2 {
        font-size: 1.05em;
        min-height: auto;
    }
    
    .badges-row {
        gap: 5px;
    }
    
    .badge-nivel-mini,
    .badge-curso-mini,
    .badge-asignatura-mini {
        font-size: 0.7em;
        padding: 4px 8px;
    }
    
    .meta-item-v2 {
        font-size: 0.75em;
    }
}

@media (max-width: 480px) {
    .ficha-card-meta-v2 {
        gap: 8px;
    }
    
    .meta-item-v2 {
        font-size: 0.7em;
    }
    
    .ficha-card-cta-v2 {
        font-size: 0.9em;
        padding: 10px;
    }
}




/* ----------------------------------------------------------------
   4.5. FAQ ACCORDION ⭐
   ----------------------------------------------------------------
   Acordeón moderno con animaciones suaves
   Compatible con tu JavaScript existente (líneas 568-604)
   ---------------------------------------------------------------- */

/* Contenedor principal */
.faq-acordeon {
    max-width: 900px;
    margin: 30px auto;
}

/* Item individual */
.faq-item {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.faq-item.active {
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.15);
}

/* Pregunta (botón) */
.faq-question {
    width: 100%;
    background: white;
    border: none;
    padding: 20px 25px;
    text-align: left;
    font-size: 1.1em;
    font-weight: 700;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #f9fafb;
    color: var(--color-primary);
}

.faq-item.active .faq-question {
    color: var(--color-primary);
    background: #f9fafb;
}

/* Icono +/- ⭐ */
.faq-icon {
    font-size: 1.5em;
    color: var(--color-primary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ede9fe;
    border-radius: 50%;
    font-weight: 300;
    line-height: 1;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--color-primary);
    color: white;
}

/* Respuesta (colapsable) ⭐ */
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    max-height: 2000px;
}

.faq-answer p {
    padding: 0 25px 20px;
    margin: 0;
    color: #6b7280;
    line-height: 1.7;
    font-size: 1em;
}

.faq-answer p:first-child {
    padding-top: 10px;
}

.faq-answer p strong {
    color: var(--color-text);
    font-weight: 600;
}

/* Fade-in animation ⭐ */
.faq-answer {
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease 0.1s, transform 0.3s ease 0.1s, max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    opacity: 1;
    transform: translateY(0);
}


/* ================================================================
   5. FRONT-PAGE
   ================================================================ */

.hero-home {
    padding: 100px 40px;
    margin-bottom: 60px;
}

.hero-features {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.niveles-educativos,
.fichas-destacadas,
.ventajas-fichas {
    padding: 60px 0;
}

.ventajas-fichas {
    background: var(--color-gray-50);
}

.cta-final {
    padding: 80px 40px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
    border-radius: var(--radius-lg);
    margin: 60px 0;
}

.intro-seo,
.contenido-seo {
    padding: 40px 0;
    max-width: 1000px;
    margin: 0 auto;
}


/* ================================================================
   6. HUB NIVEL
   ================================================================ */

.nivel-cursos {
    padding: 40px 0;
}

.cursos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.curso-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 2px solid var(--color-gray-200);
    text-decoration: none;
    color: inherit;
    display: block;
}

.curso-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.curso-card.card-disabled,
.curso-card.curso-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.curso-icon {
    font-size: 2.5em;
    margin-bottom: 15px;
    line-height: 1;
}

.curso-nombre {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 10px 0;
}

.curso-descripcion-card {
    font-size: 0.95em;
    color: var(--color-text-light);
    margin-bottom: 15px;
    line-height: 1.5;
}

.curso-fichas-count {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9em;
    color: var(--color-text-light);
}

.fichas-number {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.2em;
}

.fichas-label {
    color: var(--color-text-light);
}

.curso-arrow {
    margin-left: auto;
    transition: transform 0.2s ease;
}

.curso-card:hover .curso-arrow {
    transform: translateX(4px);
}

.nivel-fichas-destacadas {
    padding: 40px 0;
}


/* ================================================================
   7. HUB CURSO
   ================================================================ */

.curso-asignaturas {
    padding: 40px 0;
}

.asignaturas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.asignatura-card {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 18px;
    padding: 26px 26px 22px;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    border: 2px solid #e5e7eb;
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
    overflow: hidden;
}

.asignatura-card * {
    text-decoration: none !important;
}

.asignatura-card:hover * {
    text-decoration: none !important;
}

.asignatura-card:hover .asignatura-nombre {
    color: var(--color-primary-dark);
}

.asignatura-card::after {
    content: "";
    position: absolute;
    inset: -40% -60%;
    background: linear-gradient(100deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.35) 45%, rgba(255,255,255,0) 70%);
    transform: translateX(-40%) rotate(6deg);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.asignatura-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
    border-color: var(--color-primary);
}

.asignatura-card:hover::after {
    opacity: 1;
}

.asignatura-card.asignatura-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.asignatura-icon {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6em;
    margin-bottom: 14px;
    line-height: 1;
    color: white;
}

.asignatura-nombre {
    font-size: 1.25em;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 10px 0;
}

.asignatura-descripcion {
    font-size: 0.92em;
    color: var(--color-text-light);
    margin-bottom: 12px;
    line-height: 1.5;
}

.asignatura-fichas-count {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9em;
    color: var(--color-primary-dark);
    background: #eef2ff;
    padding: 6px 10px;
    border-radius: 999px;
}

.asignatura-arrow {
    margin-left: auto;
    transition: transform 0.2s ease;
    color: var(--color-primary);
}

.asignatura-card:hover .asignatura-arrow {
    transform: translateX(6px);
}

.curso-fichas-destacadas {
    padding: 40px 0;
}


/* ================================================================
   8. HUB ASIGNATURA
   ================================================================ */

.curso-asignatura-hero {
    margin-bottom: 40px;
}

.badges-left,
.badges-right {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}


/* ================================================================
   9. SINGLE FICHA
   ================================================================ */

.ficha-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
    text-align: center;
}

.ficha-titulo {
    font-size: 2.5em;
    margin: 0 0 20px 0;
    font-weight: 700;
    line-height: 1.2;
    color: white;
}

.destacada-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-warning) 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.9em;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ficha-metadata-minimal {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 20px;
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.25);
    color: white;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-fast);
}

.meta-badge:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-2px);
}

.meta-edad { background: rgba(59, 130, 246, 0.35) !important; }
.meta-tiempo { background: rgba(245, 158, 11, 0.35) !important; }
.meta-dificultad { background: rgba(16, 185, 129, 0.35) !important; }
.meta-tema { background: rgba(139, 92, 246, 0.35) !important; }
.meta-lomloe { background: rgba(236, 72, 153, 0.35) !important; }

.ficha-grid-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 👈 CAMBIO: 2 columnas */
    gap: 25px;
    margin-bottom: 30px;
}


.ficha-contenido-principal {
    margin-bottom: 30px;
}

.info-box {
    background: white;
    padding: 25px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.info-titulo {
    font-size: 1.3em;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 15px 0;
}

.objetivos-lista {
    list-style: none;
    padding: 0;
    margin: 0;
}

.objetivos-lista li {
    padding: 10px 0 10px 30px;
    position: relative;
    font-size: 1.05em;
    line-height: 1.6;
    color: var(--color-text-light);
}

.objetivos-lista li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
    font-size: 1.3em;
}

.instrucciones-lista {
    list-style: none;
    padding: 0;
    margin: 0;
}

.instrucciones-lista li {
    padding: 10px 0 10px 30px;
    position: relative;
    font-size: 1.05em;
    line-height: 1.6;
    color: var(--color-text-light);
}

.instrucciones-lista li::before {
    content: '📌';
    position: absolute;
    left: 0;
    font-size: 1.2em;
}

.ficha-descripcion-completa {
    background: white;
    padding: 35px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}

.ficha-descripcion-completa h3 {
    font-size: 1.7em;
    color: var(--color-primary);
    margin: 0 0 20px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}

.descripcion-texto {
    font-size: 1.05em;
    line-height: 1.8;
    color: var(--color-text-light);
}

.descripcion-texto p {
    margin-bottom: 15px;
}

.no-info,
.no-content {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-text-muted);
    font-style: italic;
}


/* ================================================================
   10. FICHA EDUCATIVA INTERACTIVA
   ================================================================ */

.ficha-educativa {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 4px solid var(--color-warning);
    border-radius: var(--radius-lg);
    padding: 35px;
    margin: 30px 0;
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.3);
    position: relative;
    overflow: hidden;
}

.ficha-educativa .ejercicio-correcto {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border: 3px solid #10b981;
    box-shadow: 0 8px 22px rgba(16, 185, 129, 0.25);
}

.ficha-educativa .ejercicio-incorrecto {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border: 3px solid #ef4444;
    box-shadow: 0 8px 22px rgba(239, 68, 68, 0.22);
}

.ficha-educativa .instrucciones,
.ficha-contenido-principal .ficha-educativa .instrucciones {
    background: linear-gradient(135deg, var(--color-danger) 0%, #dc2626 100%);
    color: white;
    padding: 20px 25px;
    border-radius: 15px;
    font-size: 1.2em;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
    line-height: 1.6;
}

/* ================================================================
   CONTENEDOR DE PREGUNTAS - SISTEMA DE COLUMNAS UX INFANTIL
   Preguntas simples: máximo 2 columnas
   Tipologías complejas: 1 columna completa
   ================================================================ */
.contenedor-preguntas {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* CAMBIO: Máximo 2 columnas */
    gap: 25px; /* CAMBIO: Gap más generoso */
    margin-bottom: 30px;
}

/* Preguntas simples: ocupan 1 celda (máx 2 por fila) */
.bloque-ejercicio {
    grid-column: span 1;
}

/* TIPOLOGÍAS COMPLEJAS: Forzar ancho completo (1 columna) */
.ejercicio-truefalse,
.ejercicio-fillblanks,
.ejercicio-dragdrop,
.ejercicio-memory,
.ejercicio-trazo,
.ejercicio-wordsearch {
    grid-column: 1 / -1 !important; /* Span completo */
}

/* Responsive tablet: 1 columna para todo */
@media (max-width: 968px) {
    .contenedor-preguntas {
        grid-template-columns: 1fr;
    }
}


.bloque-ejercicio {
    background: white;
    border: 3px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 25px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.bloque-ejercicio:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-info);
}

.bloque-ejercicio.correcto {
    border-color: var(--color-success);
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    animation: celebrar 0.5s ease;
}

.bloque-ejercicio.incorrecto {
    border-color: var(--color-danger);
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    animation: shake 0.5s ease;
}

@keyframes celebrar {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.bloque-ejercicio .pregunta {
    font-size: 1.15em;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 15px;
    line-height: 1.5;
}

.bloque-ejercicio .visual {
    font-size: 1.8em;
    text-align: center;
    padding: 20px;
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    margin: 15px 0;
    letter-spacing: 4px;
    line-height: 1.6;
}

.bloque-ejercicio .opciones {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 15px;
}

.opcion-btn {
    background: linear-gradient(135deg, var(--color-info) 0%, #2563eb 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 1.3em;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    min-width: 70px;
}

.opcion-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.opcion-btn.seleccionada,
.opcion-btn.seleccionado {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
    transform: scale(1.1);
}

.opcion-btn.correcta,
.opcion-btn.correcto {
    background: linear-gradient(135deg, var(--color-success) 0%, #059669 100%);
    animation: pulso 0.6s ease;
}

.opcion-btn.incorrecta,
.opcion-btn.incorrecto {
    background: linear-gradient(135deg, var(--color-danger) 0%, #dc2626 100%);
}

/* Fallback visual para fillblanks (si no carga el css del addon) */
.ejercicio-fillblanks {
    background: #ffffff;
    border: 3px solid var(--color-info);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: var(--shadow-sm);
}

.pregunta-fillblanks {
    font-size: 1.08em;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 14px 0;
}

.fillblanks-texto {
    font-size: 1.1em;
    line-height: 1.8;
    color: var(--color-text);
}

.fillblank-input {
    display: inline-block;
    width: 86px;
    min-width: 86px;
    max-width: 86px;
    height: 44px;
    text-align: center;
    border: 2px solid var(--color-info);
    border-radius: 10px;
    background: #ffffff;
    font-size: 1.05em;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 8px;
    padding: 0 8px;
    vertical-align: middle;
}

.fillblank-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 113, 163, 0.2);
}

/* Nueva tipologia: series numericas */
.ejercicio-serie {
    grid-column: 1 / -1 !important;
    background: #ffffff;
    border: 3px solid #8b5cf6;
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: var(--shadow-sm);
}

.serie-rows {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.serie-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 1.2em;
    font-weight: 700;
    color: var(--color-text);
    background: #f8fafc;
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    padding: 12px;
}

.serie-sep {
    opacity: 0.75;
}

@keyframes pulso {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

.acciones {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 25px;
}

.btn-comprobar,
.btn-descargar-pdf,
.btn-generar-pinterest,
.btn-reiniciar {
    padding: 16px 35px;
    border: none;
    border-radius: 14px;
    font-size: 1.2em;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn-comprobar {
    background: linear-gradient(135deg, var(--color-warning) 0%, #ea580c 100%);
    color: white;
}

.btn-comprobar:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(249, 115, 22, 0.4);
}

.btn-descargar-pdf {
    background: linear-gradient(135deg, var(--color-success) 0%, #059669 100%);
    color: white;
}

.btn-descargar-pdf:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(16, 185, 129, 0.4);
}

.btn-generar-pinterest {
    background: linear-gradient(135deg, #e60023 0%, #bd081c 100%);
    color: white;
}

.btn-generar-pinterest:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(230, 0, 35, 0.4);
}

.feedback {
    margin-top: 25px;
    padding: 20px;
    border-radius: 14px;
    font-size: 1.3em;
    font-weight: 700;
    text-align: center;
    animation: aparecer 0.5s ease;
}

@keyframes aparecer {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.feedback.exito {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border: 3px solid var(--color-success);
}

.feedback.error,
.feedback.mejorar {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    border: 3px solid var(--color-warning);
}


/* ================================================================
   11. NAVEGACIÓN ENTRE FICHAS
   ================================================================ */

.ficha-navegacion-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 40px 0;
}

.nav-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 15px;
    border: 2px solid var(--color-gray-200);
}

.nav-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.nav-card-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.nav-card-icon {
    font-size: 2em;
    color: var(--color-primary);
}

.nav-card-content {
    flex: 1;
}

.nav-card-label {
    font-size: 0.85em;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.nav-card-title {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
}

.nav-card-prev {
    text-align: left;
}

.nav-card-next {
    text-align: right;
}

.ficha-navegacion-cards.nav-attention .nav-card:not(.nav-card-disabled) {
    border-color: rgba(37, 113, 163, 0.45);
    box-shadow: 0 12px 32px rgba(37, 113, 163, 0.18);
    background: linear-gradient(135deg, #ffffff 0%, #f2f7ff 100%);
    animation: navPulse 1.6s ease 0s 2;
}

.ficha-navegacion-cards.nav-attention .nav-card-icon {
    color: var(--color-primary-dark);
}

.nav-card-next.nav-next-attention {
    border-color: #1a5276;
    box-shadow:
        0 30px 80px rgba(37, 113, 163, 0.55),
        0 0 0 22px rgba(37, 113, 163, 0.35);
    background:
        linear-gradient(120deg, #2563eb 0%, #93c5fd 35%, #1d4ed8 70%, #38bdf8 100%),
        repeating-linear-gradient(135deg, rgba(14,165,233,0.6) 0 12px, rgba(255,255,255,0) 12px 24px);
    background-size: 300% 300%;
    position: relative;
    overflow: hidden;
    animation: navNextGlow 0.9s ease-in-out infinite, navNextWobble 1.8s ease-in-out infinite;
}

.nav-card-next.nav-next-attention .nav-card-label {
    color: #0b3b5f;
    font-weight: 800;
}

.nav-card-next.nav-next-attention .nav-card-title {
    font-size: 1.2em;
}

.nav-card-next.nav-next-attention .nav-card-icon {
    font-size: 2.2em;
}


.nav-card-next.nav-next-attention::after {
    content: "";
    position: absolute;
    inset: -60% -80%;
    background: linear-gradient(100deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.85) 45%, rgba(255,255,255,0) 70%);
    transform: translateX(-30%) rotate(6deg);
    animation: navNextSweep 1.6s ease-in-out infinite;
    pointer-events: none;
    mix-blend-mode: screen;
}

.nav-card-next.nav-next-attention::before {
    content: "";
    position: absolute;
    inset: -12px;
    border-radius: inherit;
    border: 3px solid rgba(37,113,163,0.8);
    animation: navNextRing 0.8s ease-out infinite;
    pointer-events: none;
}

.nav-card-next.nav-next-attention.nav-next-flash {
    background:
        linear-gradient(120deg, #1d4ed8 0%, #60a5fa 35%, #1e40af 70%, #38bdf8 100%),
        repeating-linear-gradient(135deg, rgba(14,165,233,0.85) 0 12px, rgba(255,255,255,0) 12px 24px);
    box-shadow:
        0 38px 100px rgba(37, 113, 163, 0.7),
        0 0 0 28px rgba(37, 113, 163, 0.45);
}

@keyframes navPulse {
    0% { transform: translateY(0); box-shadow: 0 8px 20px rgba(37, 113, 163, 0.12); }
    50% { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(37, 113, 163, 0.22); }
    100% { transform: translateY(0); box-shadow: 0 12px 32px rgba(37, 113, 163, 0.18); }
}

@keyframes navNextGlow {
    0% { transform: translateY(0) scale(1); background-position: 0% 50%; filter: saturate(1.2); }
    50% { transform: translateY(-16px) scale(1.12); background-position: 100% 50%; filter: saturate(1.6); }
    100% { transform: translateY(0) scale(1); background-position: 0% 50%; filter: saturate(1.2); }
}

@keyframes navNextSweep {
    0% { transform: translateX(-40%) rotate(6deg); opacity: 0; }
    20% { opacity: 1; }
    55% { transform: translateX(40%) rotate(6deg); opacity: 0.5; }
    100% { transform: translateX(70%) rotate(6deg); opacity: 0; }
}

@keyframes navNextWobble {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    40% { transform: translateY(-12px) rotate(1.3deg); }
    70% { transform: translateY(-4px) rotate(-1.3deg); }
}

@keyframes navNextRing {
    0% { opacity: 0.0; transform: scale(0.95); }
    40% { opacity: 0.9; transform: scale(1.05); }
    100% { opacity: 0.0; transform: scale(1.12); }
}

.fichas-relacionadas-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 50px 20px;
    border-radius: var(--radius-lg);
    margin: 40px 0;
}

.relacionadas-header {
    text-align: center;
    margin-bottom: 35px;
}

.relacionadas-titulo {
    font-size: 2.2em;
    color: white;
    font-weight: 800;
    margin: 0;
}

.fichas-carousel-wrapper {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px; /* 👈 Menos padding lateral */
}



.fichas-relacionadas-carousel {
    display: flex;
    gap: 25px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 10px;
}

/* ================================================================
   EXPLORA POR TEMAS
   ================================================================ */

.seccion-temas {
    margin: 50px 0;
}

.temas-lista {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.tema-item {
    display: block;
    background: white;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    text-decoration: none;
    color: inherit;
}

.tema-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.tema-nombre {
    margin: 0 0 8px 0;
    font-size: 1.05em;
    font-weight: 800;
    color: var(--color-text);
}

.tema-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9em;
    font-weight: 700;
    color: var(--color-primary-dark);
    background: var(--color-gray-100);
    padding: 6px 10px;
    border-radius: 999px;
}

.fichas-relacionadas-carousel::-webkit-scrollbar {
    display: none;
}

.ficha-relacionada-card {
    flex: 0 0 320px; /* Ancho fijo */
    scroll-snap-align: start;
}


/* Controles debajo del carrusel (móvil y desktop) ⭐ */
.carousel-controls {
    position: static; /* 👈 Cambiado de absolute a static */
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 25px; /* 👈 Espacio arriba */
    padding: 0;
    pointer-events: all;
    z-index: auto;
}

.carousel-btn {
    background: white;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.8em;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.carousel-btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: white;
    transform: scale(1.15);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}


.ficha-relacionada-card {
    background: white;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    transition: var(--transition-normal);
    border: 2px solid var(--color-gray-200);
    position: relative;
}

.ficha-relacionada-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.ficha-relacionada-card:hover::before {
    transform: scaleX(1);
}

.ficha-relacionada-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
    border-color: var(--color-primary);
}

.card-link {
    display: block;
    padding: 24px;
    text-decoration: none;
    color: inherit;
}

.card-titulo {
    font-size: 1.25em;
    font-weight: 700;
    margin: 0 0 15px 0;
    line-height: 1.3;
    color: var(--color-text);
    transition: color 0.2s ease;
}

.ficha-relacionada-card:hover .card-titulo {
    color: var(--color-primary);
}

.card-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.card-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85em;
    color: var(--color-text-light);
    padding: 6px 12px;
    background: var(--color-gray-100);
    border-radius: 10px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.ficha-relacionada-card:hover .card-meta-item {
    background: #e0e7ff;
    color: #4338ca;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ficha-relacionada-card {
    animation: fadeInUp 0.5s ease backwards;
}

.ficha-relacionada-card:nth-child(1) { animation-delay: 0.1s; }
.ficha-relacionada-card:nth-child(2) { animation-delay: 0.2s; }
.ficha-relacionada-card:nth-child(3) { animation-delay: 0.3s; }
.ficha-relacionada-card:nth-child(4) { animation-delay: 0.4s; }


/* ================================================================
   12. CONTENIDO SEO
   ================================================================ */

.hub-intro-seo,
.hub-contenido-principal-seo,
.hub-contenido-adicional-seo {
    background: white;
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}

.hub-intro-seo h2,
.hub-contenido-principal-seo h2,
.hub-contenido-adicional-seo h2 {
    color: var(--color-primary);
    font-size: 1.8em;
    margin-bottom: 15px;
}

.hub-intro-seo p,
.hub-contenido-principal-seo p,
.hub-contenido-adicional-seo p {
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: 15px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-titulo {
    font-size: 2.5em;
    color: var(--color-text);
    margin-bottom: 15px;
    font-weight: 800;
}

.section-descripcion {
    font-size: 1.2em;
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.no-fichas,
.no-fichas-message {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-light);
    font-size: 1.1em;
}


/* ================================================================
   13. RESPONSIVE
   👈 EDITAR: Ajustar breakpoints según necesidades
   ================================================================ */

/* Tablet */
@media (max-width: 1024px) {
    .site-breadcrumbs {
        top: 60px; /* 👈 AJUSTAR según tu header */
    }

    .nivel-hero,
    .curso-hero,
    .curso-asignatura-hero {
        padding: 60px 30px;
    }

    .nivel-titulo,
    .curso-titulo,
    .curso-asignatura-titulo {
        font-size: 2.2em;
    }

    .nivel-stats,
    .curso-stats,
    .curso-asignatura-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .nivel-wrapper .fichas-grid,
    .curso-wrapper .fichas-grid,
    .curso-asignatura-wrapper .fichas-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .temas-lista {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Mobile */

@media (max-width: 768px) {
    .ficha-grid-info {
        grid-template-columns: 1fr; /* 👈 Una columna en móvil */
        gap: 20px;
    }

    @media (max-width: 768px) {
    /* Breadcrumbs con scroll horizontal ⭐ */
    .site-breadcrumbs {
        top: 60px;
        padding: 10px 0;
        margin-bottom: 15px; /* Menos espacio */
    }
    
    .breadcrumbs-list,
    .breadcrumb-trail {
        flex-wrap: nowrap; /* 👈 NO permite salto de línea */
        overflow-x: auto; /* 👈 Scroll horizontal */
        overflow-y: hidden;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch; /* 👈 Suave en iOS */
        scrollbar-width: none; /* Oculta scrollbar Firefox */
        -ms-overflow-style: none; /* Oculta scrollbar IE/Edge */
        padding: 0 15px;
        gap: 6px;
        font-size: 0.85rem;
    }
    
    /* Ocultar scrollbar en Chrome/Safari */
    .breadcrumbs-list::-webkit-scrollbar,
    .breadcrumb-trail::-webkit-scrollbar {
        display: none;
    }
    
    /* Items no se encogen */
    .breadcrumb-item,
    .breadcrumb-nav-item {
        flex-shrink: 0; /* 👈 Mantiene tamaño original */
        white-space: nowrap; /* 👈 Texto en una línea */
    }
    
    .breadcrumb-item a,
    .breadcrumb-nav-item a,
    .breadcrumb-item span,
    .breadcrumb-nav-item span {
        white-space: nowrap;
    }
}

}

@media (max-width: 768px) {
        /* Padding-top para evitar solapamiento con header en móvil */
    .home-wrapper {
        padding: 100px 15px 15px 15px;
    }

    .nivel-wrapper,
    .curso-wrapper,
    .curso-asignatura-wrapper,
    .ficha-wrapper,
    .content-wrapper {
        padding: 0 15px;
    }

    .site-breadcrumbs {
        top: 60px; /* 👈 AJUSTAR según tu header mobile */
        padding: 10px 0;
        margin-bottom: 20px;
    }

    .breadcrumbs-list,
    .breadcrumb-trail {
        gap: 6px;
        padding: 0 15px;
        font-size: 0.85rem;
    }

    .nivel-hero,
    .curso-hero,
    .curso-asignatura-hero,
    .hero-home {
        padding: 40px 20px;
        margin-bottom: 30px;
    }

    .nivel-titulo,
    .curso-titulo,
    .curso-asignatura-titulo {
        font-size: 1.8em;
    }

    .ficha-titulo {
        font-size: 1.6em;
    }

    .nivel-stats,
    .curso-stats,
    .curso-asignatura-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .stat-item {
        padding: 15px 20px;
    }

    .stat-number {
        font-size: 2em;
    }

    .fichas-grid,
    .fichas-grid-modern,
    .curso-asignatura-fichas-grid,
    .cursos-grid,
    .asignaturas-grid,
    .fichas-relacionadas-carousel,
    .nivel-wrapper .fichas-grid,
    .curso-wrapper .fichas-grid,
    .curso-asignatura-wrapper .fichas-grid {
        grid-template-columns: 1fr !important;
        gap: 20px;
    }

    /* Cards minimalistas en móvil */
    .ficha-card-mini .ficha-card-header,
    .ficha-card-modern .ficha-card-header-modern {
        padding: 15px;
    }

    .ficha-card-mini .ficha-card-body {
        padding: 15px;
    }

    .ficha-card-mini .ficha-card-titulo,
    .ficha-card-modern .ficha-card-titulo-modern {
        font-size: 1.05em;
    }

    .ficha-card-mini .ficha-card-cta {
        margin: 12px 15px 15px;
        padding: 12px;
        font-size: 0.9em;
    }

    /* FAQ en móvil */
    .faq-question {
        padding: 15px 18px;
        font-size: 1em;
    }

    .faq-answer p {
        padding: 0 18px 18px;
        font-size: 0.95em;
    }

    .faq-icon {
        width: 26px;
        height: 26px;
        font-size: 1.2em;
    }

    .ficha-header {
        padding: 30px 20px;
    }

    .ficha-metadata-minimal {
        gap: 8px;
    }

    .meta-badge {
        padding: 6px 12px;
        font-size: 0.85em;
    }

    .ficha-descripcion-completa,
    .info-box {
        padding: 25px 20px;
    }

    .ficha-educativa {
        padding: 20px;
    }

    .contenedor-preguntas {
        grid-template-columns: 1fr;
        gap: 20px; /* Gap reducido en móvil */
    }
 .bloque-ejercicio {
        grid-column: 1;
    }
    .bloque-ejercicio .visual {
        font-size: 1.4em;
        letter-spacing: 2px;
        padding: 15px;
    }

    .opcion-btn {
        padding: 12px 20px;
        font-size: 1.1em;
        min-width: 60px;
    }

    .btn-comprobar,
    .btn-descargar-pdf,
    .btn-generar-pinterest {
        width: 100%;
        padding: 14px 20px;
        font-size: 1.1em;
    }

    .fichas-relacionadas-box {
        padding: 30px 15px;
    }

    .relacionadas-titulo {
        font-size: 1.6em;
    }

    .ficha-navegacion-cards {
        grid-template-columns: 1fr;
    }

    .ficha-navegacion-cards .nav-card-next {
        order: -1;
    }

    .nav-card {
        padding: 15px;
        gap: 10px;
    }

    .nav-card-icon {
        font-size: 1.5em;
    }

    .nav-card-title {
        font-size: 1em;
    }

    .section-titulo {
        font-size: 1.8em;
    }

    .section-descripcion {
        font-size: 1.05em;
    }

    .hub-intro-seo,
    .hub-contenido-principal-seo,
    .hub-contenido-adicional-seo {
        padding: 20px 15px;
    }

    .temas-lista {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .tema-item {
        padding: 16px 18px;
    }
}

@media screen and (max-width: 782px) {
    .admin-bar .site-breadcrumbs {
        top: calc(60px + 46px); /* 👈 AJUSTAR: 60px header mobile + 46px admin bar */
    }
}

/* Muy pequeño */
@media (max-width: 480px) {
    .nivel-titulo,
    .curso-titulo,
    .curso-asignatura-titulo {
        font-size: 1.5em;
    }

    .stat-number {
        font-size: 1.8em;
    }

    .section-titulo {
        font-size: 1.5em;
    }

    .ficha-titulo {
        font-size: 1.4em;
    }
}
/* Eliminar margen inferior del header para alinear breadcrumbs */
.site-header {
    margin-bottom: 0 !important;
}
/* FIX: Breadcrumbs FIXED en móvil para que NO desaparezca */
@media (max-width: 768px) {
    .site-breadcrumbs {
        position: fixed !important;
        top: 60px !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        z-index: 99999 !important;
        background: white !important;
        padding: 10px 0 !important;
        margin-bottom: 0 !important;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08) !important;
    }
    
    /* Añadir padding-top al contenido para compensar breadcrumb fixed */
    .nivel-wrapper,
    .curso-wrapper,
    .curso-asignatura-wrapper {
        padding-top: 80px !important; /* Ajusta según altura real del breadcrumb */
    }
}
/* ============================================
   FIX: Admin Bar - Ajustar header y breadcrumbs
   ============================================ */

/* Header con admin bar en DESKTOP */
.admin-bar .site-header {
    top: 32px !important;
}

/* Breadcrumbs con admin bar en DESKTOP */
.admin-bar .site-breadcrumbs {
    top: calc(60px + 32px) !important;
}

/* Wrappers: SOLO añadir el espacio de admin bar, no duplicar */
.admin-bar .nivel-wrapper,
.admin-bar .curso-wrapper,
.admin-bar .curso-asignatura-wrapper {
    padding-top: 32px !important; /* Solo el espacio de admin bar */
}

/* Header con admin bar en MÓVIL */
@media screen and (max-width: 782px) {
    .admin-bar .site-header {
        top: 46px !important;
    }
    
    .admin-bar .site-breadcrumbs {
        top: calc(60px + 46px) !important;
    }
    
    /* Wrappers móvil: SOLO el espacio de admin bar */
    .admin-bar .nivel-wrapper,
    .admin-bar .curso-wrapper,
    .admin-bar .curso-asignatura-wrapper {
        padding-top: 46px !important; /* Solo admin bar móvil */
    }
}

/* Badge de veces realizada */
.meta-badge.meta-vistas {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    border: 1px solid #93c5fd;
}

/* ============================================
   BADGE DE VISTAS EN CARDS DESTACADAS (NUEVO)
   ============================================ */

/* Badge de vistas en card destacada */
.ficha-card-header-v2 {
    position: relative;
}

.badge-vistas-card {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 4px;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.4);
    z-index: 10;
}

.ficha-card-mini-v2:hover .badge-vistas-card {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    transform: scale(1.05);
    transition: all 0.3s ease;
}


/* Responsive móvil para badge */
@media (max-width: 480px) {
    .badge-vistas-card {
        font-size: 11px;
        padding: 5px 10px;
    }
}

/* ================================================================
   FIN DEL CSS
   ================================================================ */