/* ================= aportado inicialmente por index.html ================= */
/* ============================================
                   RESET Y VARIABLES
                   ============================================ */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

:root {
            --primary: #1a3a6b;
            --primary-dark: #0f2647;
            --primary-light: #2a5a9b;
            --secondary: #c0392b;
            --tertiary: #27ae60;
            --accent: #f39c12;
            --light: #f8f9fa;
            --dark: #2c3e50;
            --gray: #7f8c8d;
            --white: #ffffff;
            --shadow: 0 10px 30px rgba(0,0,0,0.1);
            --shadow-hover: 0 15px 40px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --border-radius: 12px;
        }

html {
            scroll-behavior: smooth;
        }

body {
            font-family: 'Open Sans', sans-serif;
            color: var(--dark);
            line-height: 1.6;
            background: var(--light);
            overflow-x: hidden;
        }

h1, h2, h3, h4, h5, h6 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
        }

a {
            text-decoration: none;
            color: inherit;
        }

img {
            max-width: 100%;
            height: auto;
        }

.container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

/* ============================================
                   HEADER MEJORADO CON MENÚ HAMBURGUESA
                   ============================================ */
        .header {
            background: var(--white);
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 0;
            transition: var(--transition);
        }

.header.scrolled {
            box-shadow: 0 4px 20px rgba(0,0,0,0.12);
            padding: 8px 0;
        }

.header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

/* Logo */
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

.logo-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--border-radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 22px;
            font-weight: 900;
            font-family: 'Montserrat', sans-serif;
            box-shadow: 0 4px 10px rgba(26, 58, 107, 0.3);
        }

.logo-text {
            font-family: 'Montserrat', sans-serif;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

.logo-text span {
            color: var(--secondary);
        }

.logo-text small {
            display: block;
            font-size: 10px;
            font-weight: 400;
            color: var(--gray);
            letter-spacing: 1px;
        }

/* Navegación Desktop */
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 25px;
            list-style: none;
        }

.nav-menu a {
            font-weight: 600;
            font-size: 14px;
            color: var(--dark);
            transition: var(--transition);
            position: relative;
            padding: 5px 0;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

.nav-menu a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--secondary);
            transition: var(--transition);
            border-radius: 2px;
        }

.nav-menu a:hover::after,
        .nav-menu a.active::after {
            width: 100%;
        }

.nav-menu a:hover {
            color: var(--primary);
        }

.nav-menu a.active {
            color: var(--primary);
        }

/* Header acciones */
        .header-actions {
            display: flex;
            align-items: center;
            gap: 15px;
            flex-shrink: 0;
        }

.search-box {
            display: flex;
            align-items: center;
            background: var(--light);
            border-radius: 25px;
            padding: 8px 16px;
            transition: var(--transition);
            border: 2px solid transparent;
        }

.search-box:focus-within {
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 4px rgba(26, 58, 107, 0.1);
        }

.search-box input {
            border: none;
            background: transparent;
            padding: 4px 10px;
            outline: none;
            font-size: 14px;
            width: 140px;
            font-family: 'Open Sans', sans-serif;
        }

.search-box button {
            background: transparent;
            border: none;
            color: var(--gray);
            cursor: pointer;
            font-size: 15px;
            transition: var(--transition);
        }

.search-box button:hover {
            color: var(--primary);
        }

.cart-icon {
            position: relative;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            transition: var(--transition);
            padding: 8px;
        }

.cart-icon:hover {
            color: var(--secondary);
            transform: scale(1.05);
        }

.cart-badge {
            position: absolute;
            top: 0;
            right: 0;
            background: var(--secondary);
            color: white;
            font-size: 10px;
            font-weight: 700;
            min-width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid white;
        }

/* Botón Hamburguesa */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 5px;
            background: transparent;
            border: none;
            transition: var(--transition);
        }

.hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
            transition: var(--transition);
            transform-origin: center;
        }

.hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

.hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

.hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

/* Menú Móvil */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0,0,0,0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

.mobile-menu.active {
            opacity: 1;
            visibility: visible;
        }

.mobile-menu-content {
            position: absolute;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 350px;
            height: 100%;
            background: var(--white);
            padding: 80px 30px 30px;
            transition: var(--transition);
            overflow-y: auto;
            box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        }

.mobile-menu.active .mobile-menu-content {
            right: 0;
        }

.mobile-close {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 28px;
            background: none;
            border: none;
            color: var(--dark);
            cursor: pointer;
            transition: var(--transition);
        }

.mobile-close:hover {
            transform: rotate(90deg);
            color: var(--secondary);
        }

.mobile-menu-content ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

.mobile-menu-content ul li a {
            display: block;
            padding: 15px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            border-radius: var(--border-radius);
            transition: var(--transition);
            border-left: 3px solid transparent;
        }

.mobile-menu-content ul li a:hover,
        .mobile-menu-content ul li a.active {
            background: var(--light);
            border-left-color: var(--secondary);
            color: var(--primary);
        }

.mobile-search {
            margin-top: 30px;
            display: flex;
            gap: 10px;
        }

.mobile-search input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #e0e0e0;
            border-radius: var(--border-radius);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

.mobile-search input:focus {
            border-color: var(--primary);
        }

.mobile-search button {
            padding: 12px 20px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
        }

.mobile-search button:hover {
            background: var(--primary-dark);
        }

/* ============================================
                   HERO BANNER
                   ============================================ */
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

.hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: rgba(255,255,255,0.05);
            border-radius: 50%;
            animation: float 20s ease-in-out infinite;
        }

.hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: rgba(255,255,255,0.03);
            border-radius: 50%;
            animation: float 25s ease-in-out infinite reverse;
        }

@keyframes float {
            0%, 100% { transform: translate(0, 0) scale(1); }
            50% { transform: translate(30px, -30px) scale(1.1); }
        }

.hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

.hero-content h1 {
            font-size: 48px;
            line-height: 1.15;
            margin-bottom: 20px;
            font-weight: 900;
        }

.hero-content h1 .highlight {
            color: var(--accent);
            position: relative;
        }

.hero-content h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }

.hero-content p {
            font-size: 18px;
            opacity: 0.9;
            margin-bottom: 30px;
            max-width: 500px;
            line-height: 1.8;
        }

.hero-buttons {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

.btn-primary {
            background: var(--accent);
            color: var(--dark);
            box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
        }

.btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(243, 156, 18, 0.4);
        }

.hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 35px;
            padding-top: 35px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

.hero-stats .stat {
            text-align: center;
        }

.hero-stats .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            font-family: 'Montserrat', sans-serif;
        }

.hero-stats .stat-label {
            font-size: 13px;
            opacity: 0.8;
            margin-top: 2px;
        }

.hero-image {
            display: flex;
            justify-content: center;
            align-items: center;
        }

.hero-image-card {
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 50px 40px;
            text-align: center;
            width: 100%;
            border: 1px solid rgba(255,255,255,0.1);
            transition: var(--transition);
        }

.hero-image-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 60px rgba(0,0,0,0.2);
        }

.hero-image-card i {
            font-size: 100px;
            opacity: 0.9;
            color: var(--accent);
            margin-bottom: 20px;
        }

.hero-image-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }

.hero-image-card p {
            font-size: 14px;
            opacity: 0.7;
        }

/* ============================================
                   CATEGORÍAS
                   ============================================ */
        .categories {
            padding: 80px 0;
            background: var(--white);
        }

.section-title {
            text-align: center;
            font-size: 36px;
            margin-bottom: 15px;
            font-weight: 800;
        }

.section-title .highlight {
            color: var(--secondary);
        }

.categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

.category-card {
            background: var(--light);
            border-radius: var(--border-radius);
            padding: 40px 30px;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

.category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }

.category-card:hover::before {
            opacity: 1;
        }

.category-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

.category-icon {
            font-size: 48px;
            color: var(--primary);
            margin-bottom: 20px;
            display: inline-block;
            transition: var(--transition);
        }

.category-card:hover .category-icon {
            transform: scale(1.1) rotate(-5deg);
        }

.category-card h3 {
            font-size: 22px;
            margin-bottom: 10px;
        }

.category-card p {
            color: var(--gray);
            font-size: 14px;
        }

.category-card .badge {
            display: inline-block;
            background: var(--secondary);
            color: white;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-top: 15px;
        }

/* ============================================
                   LIBROS DESTACADOS
                   ============================================ */
        .featured-books {
            padding: 80px 0;
            background: var(--light);
        }

.books-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

.book-card {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.06);
            transition: var(--transition);
            position: relative;
        }

.book-cover {
            position: relative;
            padding-top: 140%;
            background: var(--light);
            overflow: hidden;
        }

.book-cover img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

.book-card:hover .book-cover img {
            transform: scale(1.05);
        }

.book-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--secondary);
            color: white;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

.book-badge.digital {
            background: var(--tertiary);
        }

.book-badge.new {
            background: var(--accent);
            color: var(--dark);
        }

.book-info {
            padding: 20px;
        }

.book-info h4 {
            font-size: 16px;
            margin-bottom: 4px;
            font-weight: 700;
            line-height: 1.3;
        }

.book-info .author {
            font-size: 13px;
            color: var(--gray);
            margin-bottom: 8px;
        }

.book-info .rating {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 8px;
        }

.book-info .rating span {
            color: var(--gray);
            font-size: 13px;
            margin-left: 5px;
        }

.book-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid #eee;
        }

.book-price {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
        }

.book-price .old-price {
            font-size: 14px;
            color: var(--gray);
            text-decoration: line-through;
            font-weight: 400;
            margin-right: 8px;
        }

.btn-cart {
            background: var(--primary);
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

.btn-cart:hover {
            background: var(--secondary);
            transform: scale(1.05);
        }

.btn-cart.added {
            background: var(--tertiary);
        }

.view-all {
            text-align: center;
            margin-top: 40px;
        }

/* ============================================
                   SECCIÓN PRIMERIZOS
                   ============================================ */
        .primers-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }

.primers-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

.primers-content h2 {
            font-size: 36px;
            margin-bottom: 20px;
            font-weight: 800;
        }

.primers-content h2 .highlight {
            color: var(--secondary);
        }

.primers-content .subtitle {
            font-size: 17px;
            margin-bottom: 25px;
            color: var(--gray);
        }

.primers-content ul {
            list-style: none;
            margin: 0 0 30px 0;
        }

.primers-content ul li {
            padding: 10px 0;
            display: flex;
            align-items: center;
            gap: 15px;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

.primers-content ul li:last-child {
            border-bottom: none;
        }

.primers-content ul li i {
            color: var(--tertiary);
            font-size: 20px;
            width: 30px;
            flex-shrink: 0;
        }

.primers-image {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 20px;
            padding: 50px 40px;
            color: white;
            text-align: center;
            min-height: 350px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

.primers-image::before {
            content: '🎓';
            font-size: 150px;
            opacity: 0.08;
            position: absolute;
            right: -20px;
            bottom: -30px;
        }

.primers-image h3 {
            font-size: 28px;
            margin-bottom: 15px;
            position: relative;
            z-index: 1;
        }

.primers-image p {
            opacity: 0.9;
            max-width: 300px;
            position: relative;
            z-index: 1;
        }

.btn-light {
            background: white;
            color: var(--primary);
            padding: 14px 35px;
            border-radius: 50px;
            font-weight: 700;
            border: none;
            margin-top: 20px;
            cursor: pointer;
            transition: var(--transition);
            font-family: 'Montserrat', sans-serif;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            position: relative;
            z-index: 1;
        }

.btn-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

/* ============================================
                   TESTIMONIOS
                   ============================================ */
        .testimonials {
            padding: 80px 0;
            background: var(--white);
        }

.testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

.testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

.testimonial-card .user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

.testimonial-card .user-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

.testimonial-card .user-info h4 {
            font-size: 15px;
            font-weight: 700;
        }

.testimonial-card .user-info span {
            font-size: 13px;
            color: var(--gray);
        }

/* ============================================
                   NEWSLETTER
                   ============================================ */
        .newsletter {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
        }

.newsletter-content {
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }

.newsletter-content h2 {
            font-size: 32px;
            margin-bottom: 15px;
            font-weight: 800;
        }

.newsletter-content p {
            opacity: 0.9;
            margin-bottom: 25px;
            font-size: 17px;
        }

.newsletter-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
        }

.newsletter-form input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            border-radius: 50px;
            font-size: 16px;
            outline: none;
            font-family: 'Open Sans', sans-serif;
        }

.newsletter-form input:focus {
            box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.3);
        }

.newsletter-form button {
            padding: 15px 30px;
            border: none;
            border-radius: 50px;
            background: var(--accent);
            color: var(--dark);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            font-family: 'Montserrat', sans-serif;
            font-size: 15px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

.newsletter-form button:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 20px rgba(243, 156, 18, 0.4);
        }

/* ============================================
                   FOOTER
                   ============================================ */
        .footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }

.footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

.footer h4 {
            font-size: 18px;
            margin-bottom: 20px;
            color: white;
            font-weight: 700;
        }

.footer p {
            opacity: 0.8;
            font-size: 14px;
            line-height: 1.8;
        }

.footer ul {
            list-style: none;
        }

.footer ul li {
            margin-bottom: 10px;
        }

.footer ul li a {
            opacity: 0.8;
            font-size: 14px;
            transition: var(--transition);
        }

.footer ul li a:hover {
            opacity: 1;
            color: var(--accent);
            padding-left: 5px;
        }

.footer ul li i {
            margin-right: 10px;
            width: 20px;
            color: var(--accent);
        }

.footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

.footer-social a {
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: 17px;
        }

.footer-social a:hover {
            background: var(--accent);
            color: var(--dark);
            transform: translateY(-3px);
        }

.footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 14px;
            opacity: 0.6;
        }

.footer-bottom a {
            color: white;
            transition: var(--transition);
        }

.footer-bottom a:hover {
            opacity: 1;
            color: var(--accent);
        }

.footer-bottom .separator {
            margin: 0 10px;
            opacity: 0.3;
        }

/* ============================================
                   RESPONSIVE
                   ============================================ */
        @media (max-width: 1024px) {
            .books-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .hero-content h1 {
                font-size: 38px;
            }
        }

@media (max-width: 768px) {
            /* Header */
            .nav-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: block;
            }

            .search-box {
                display: none;
            }

            .header-actions {
                gap: 10px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }

            /* Hero */
            .hero {
                padding: 60px 0;
            }

            .hero .container {
                grid-template-columns: 1fr;
                text-align: center;
                gap: 30px;
            }

            .hero-content p {
                margin: 0 auto 30px;
                max-width: 100%;
            }

            .hero-stats {
                justify-content: center;
                gap: 20px;
                flex-wrap: wrap;
            }

            .hero-buttons {
                justify-content: center;
            }

            .hero-content h1 {
                font-size: 32px;
            }

            .hero-image-card {
                padding: 30px 20px;
            }

            .hero-image-card i {
                font-size: 60px;
            }

            /* Categorías */
            .categories-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }

            .section-title {
                font-size: 28px;
            }

            /* Libros */
            .books-grid {
                grid-template-columns: 1fr 1fr;
                gap: 15px;
            }

            /* Primerizos */
            .primers-container {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .primers-content ul li {
                justify-content: center;
            }

            .primers-content h2 {
                font-size: 28px;
            }

            .primers-image {
                min-height: 250px;
                padding: 30px 20px;
            }

            .primers-image::before {
                font-size: 100px;
            }

            .primers-image h3 {
                font-size: 22px;
            }

            /* Testimonios */
            .testimonials-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }

            /* Footer */
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .footer-social {
                justify-content: center;
            }

            .footer ul li i {
                margin-right: 5px;
            }

            /* Newsletter */
            .newsletter-form {
                flex-direction: column;
                padding: 0 20px;
            }

            .newsletter-content h2 {
                font-size: 26px;
            }
        }

@media (max-width: 480px) {
            .books-grid {
                grid-template-columns: 1fr;
                max-width: 350px;
                margin: 0 auto;
            }

            .hero-stats {
                flex-direction: column;
                gap: 10px;
            }

            .hero-content h1 {
                font-size: 26px;
            }

            .hero-stats .stat-number {
                font-size: 22px;
            }

            .btn {
                padding: 12px 25px;
                font-size: 13px;
            }

            .mobile-menu-content {
                width: 85%;
            }
        }

/* Scrollbar personalizada */
        ::-webkit-scrollbar {
            width: 10px;
        }

::-webkit-scrollbar-track {
            background: var(--light);
        }

::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 5px;
        }

::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

/* Animación de entrada para elementos */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

.fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* ================= aportado inicialmente por catalogo.html ================= */
/* ============================================
                   RESET Y VARIABLES (mismo que la página principal)
                   ============================================ */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

/* ============================================
                   HEADER (igual que la página principal)
                   ============================================ */
        .header {
            background: var(--white);
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 0;
            transition: var(--transition);
        }

.logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

.nav-menu {
            display: flex;
            align-items: center;
            gap: 25px;
            list-style: none;
        }

.header-actions {
            display: flex;
            align-items: center;
            gap: 15px;
            flex-shrink: 0;
        }

.hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 5px;
            background: transparent;
            border: none;
            transition: var(--transition);
        }

.mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0,0,0,0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

/* ============================================
                   BREADCRUMB
                   ============================================ */
        .breadcrumb {
            background: var(--white);
            padding: 15px 0;
            border-bottom: 1px solid #eee;
        }

.breadcrumb ul {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

.breadcrumb ul li {
            font-size: 14px;
            color: var(--gray);
        }

.breadcrumb ul li a {
            color: var(--primary);
            transition: var(--transition);
        }

.breadcrumb ul li a:hover {
            color: var(--secondary);
        }

.breadcrumb ul li .separator {
            color: var(--gray);
            margin: 0 5px;
        }

.breadcrumb ul li.active {
            color: var(--dark);
            font-weight: 600;
        }

/* ============================================
                   CATÁLOGO PRINCIPAL
                   ============================================ */
        .catalog-section {
            padding: 40px 0 60px;
            background: var(--light);
        }

.catalog-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 15px;
        }

.catalog-header h1 {
            font-size: 32px;
            font-weight: 800;
        }

.catalog-header h1 span {
            color: var(--secondary);
        }

.catalog-header .results-count {
            color: var(--gray);
            font-size: 15px;
        }

.catalog-header .results-count strong {
            color: var(--dark);
            font-weight: 700;
        }

/* Layout: Sidebar + Grid */
        .catalog-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 30px;
        }

/* ============================================
                   SIDEBAR - FILTROS
                   ============================================ */
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }

.filter-section {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 25px;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

.filter-section h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
        }

.filter-section h3 i {
            transition: var(--transition);
            font-size: 14px;
            color: var(--gray);
        }

.filter-section h3.active i {
            transform: rotate(180deg);
        }

.filter-section .filter-content {
            max-height: 500px;
            overflow: hidden;
            transition: var(--transition);
        }

.filter-section .filter-content.collapsed {
            max-height: 0;
        }

.filter-group {
            margin-bottom: 15px;
        }

.filter-group:last-child {
            margin-bottom: 0;
        }

.filter-group label {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 10px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 14px;
        }

.filter-group label:hover {
            background: var(--light);
        }

.filter-group input[type="checkbox"],
        .filter-group input[type="radio"] {
            width: 18px;
            height: 18px;
            accent-color: var(--primary);
            cursor: pointer;
            flex-shrink: 0;
        }

.filter-group .count {
            margin-left: auto;
            color: var(--gray);
            font-size: 12px;
            background: var(--light);
            padding: 2px 10px;
            border-radius: 20px;
        }

/* Rango de precios */
        .price-range {
            padding: 10px 0;
        }

.price-range .range-inputs {
            display: flex;
            gap: 10px;
            margin-top: 10px;
        }

.price-range .range-inputs input {
            width: 100%;
            padding: 8px 12px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
            font-family: 'Open Sans', sans-serif;
        }

.price-range .range-inputs input:focus {
            border-color: var(--primary);
        }

.price-range .range-slider {
            width: 100%;
            margin: 15px 0;
            -webkit-appearance: none;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            outline: none;
        }

.price-range .range-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
            transition: var(--transition);
        }

.price-range .range-slider::-webkit-slider-thumb:hover {
            transform: scale(1.1);
        }

.filter-actions {
            display: flex;
            gap: 10px;
            margin-top: 15px;
        }

.filter-actions button {
            flex: 1;
            padding: 10px;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-family: 'Montserrat', sans-serif;
            font-size: 13px;
        }

.btn-apply {
            background: var(--primary);
            color: white;
        }

.btn-apply:hover {
            background: var(--primary-dark);
        }

.btn-reset {
            background: var(--light);
            color: var(--dark);
        }

.btn-reset:hover {
            background: #e0e0e0;
        }

/* ============================================
                   CONTENIDO PRINCIPAL - LIBROS
                   ============================================ */
        .catalog-toolbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 25px;
            background: var(--white);
            padding: 15px 20px;
            border-radius: var(--border-radius);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

.catalog-toolbar .view-options {
            display: flex;
            gap: 5px;
        }

.catalog-toolbar .view-options button {
            padding: 8px 12px;
            border: 2px solid #e0e0e0;
            background: transparent;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            color: var(--gray);
            font-size: 16px;
        }

.catalog-toolbar .view-options button:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

.catalog-toolbar .view-options button.active {
            border-color: var(--primary);
            background: var(--primary);
            color: white;
        }

.catalog-toolbar .sort-options {
            display: flex;
            align-items: center;
            gap: 10px;
        }

.catalog-toolbar .sort-options label {
            font-size: 14px;
            color: var(--gray);
        }

.catalog-toolbar .sort-options select {
            padding: 8px 15px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            cursor: pointer;
            background: white;
            font-family: 'Open Sans', sans-serif;
            transition: var(--transition);
        }

.catalog-toolbar .sort-options select:focus {
            border-color: var(--primary);
        }

/* Grid de libros */
        .books-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

.books-grid.list-view {
            grid-template-columns: 1fr;
        }

.books-grid.list-view .book-card {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 20px;
            padding: 15px;
        }

.books-grid.list-view .book-cover {
            padding-top: 100%;
        }

.books-grid.list-view .book-info {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

.books-grid.list-view .book-footer {
            border-top: none;
            padding-top: 0;
        }

.book-badge.pack {
            background: var(--primary);
        }

.book-info .category-tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--light);
            border-radius: 20px;
            font-size: 11px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 8px;
        }

/* ============================================
                   PAGINACIÓN
                   ============================================ */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            margin-top: 40px;
        }

.pagination button {
            padding: 10px 16px;
            border: 2px solid #e0e0e0;
            background: var(--white);
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
            font-size: 14px;
            font-family: 'Montserrat', sans-serif;
            color: var(--dark);
        }

.pagination button:hover:not(:disabled) {
            border-color: var(--primary);
            background: var(--primary);
            color: white;
        }

.pagination button.active {
            border-color: var(--primary);
            background: var(--primary);
            color: white;
        }

.pagination button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

.pagination .page-info {
            font-size: 14px;
            color: var(--gray);
            padding: 0 15px;
        }

/* ============================================
                   FOOTER (igual que la página principal)
                   ============================================ */
        .footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }

/* ============================================
                   RESPONSIVE
                   ============================================ */
        @media (max-width: 1024px) {
            .catalog-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                position: relative;
                top: 0;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .books-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

@media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: block;
            }

            .search-box {
                display: none;
            }

            .header-actions {
                gap: 10px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }

            .sidebar {
                grid-template-columns: 1fr;
            }

            .books-grid {
                grid-template-columns: 1fr 1fr;
                gap: 15px;
            }

            .books-grid.list-view .book-card {
                grid-template-columns: 1fr;
            }

            .catalog-header h1 {
                font-size: 24px;
            }

            .catalog-toolbar {
                flex-direction: column;
                align-items: stretch;
            }

            .catalog-toolbar .sort-options {
                justify-content: space-between;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .footer-social {
                justify-content: center;
            }
        }

@media (max-width: 480px) {
            .books-grid {
                grid-template-columns: 1fr;
                max-width: 350px;
                margin: 0 auto;
            }

            .catalog-header {
                flex-direction: column;
                text-align: center;
            }

            .pagination {
                flex-wrap: wrap;
            }

            .pagination button {
                padding: 8px 12px;
                font-size: 12px;
            }
        }

/* Scrollbar */
        ::-webkit-scrollbar {
            width: 10px;
        }

/* ================= aportado inicialmente por primaria.html ================= */
/* ============================================
                   HEADER (igual que las páginas anteriores)
                   ============================================ */
        .header {
            background: var(--white);
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 0;
            transition: var(--transition);
        }

/* ============================================
                   DETALLE DEL LIBRO
                   ============================================ */
        .book-detail {
            padding: 40px 0 60px;
        }

.book-detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }

/* Galería de imágenes */
        .book-gallery {
            position: sticky;
            top: 100px;
            align-self: start;
        }

.main-image {
            position: relative;
            background: var(--light);
            border-radius: var(--border-radius);
            overflow: hidden;
            cursor: zoom-in;
            margin-bottom: 15px;
            border: 1px solid #eee;
        }

.main-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

.main-image:hover img {
            transform: scale(1.05);
        }

.image-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--secondary);
            color: white;
            padding: 6px 18px;
            border-radius: 25px;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

.image-badge.digital {
            background: var(--tertiary);
        }

.image-badge.new {
            background: var(--accent);
            color: var(--dark);
        }

.image-badge.pack {
            background: var(--primary);
        }

.image-thumbnails {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
        }

.image-thumbnails img {
            width: 100%;
            border-radius: 8px;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            aspect-ratio: 1;
            object-fit: cover;
        }

.image-thumbnails img:hover,
        .image-thumbnails img.active {
            border-color: var(--primary);
            transform: scale(1.02);
        }

/* Información del libro */
        .book-info-detail {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

.book-info-detail .category-tag {
            display: inline-block;
            padding: 4px 16px;
            background: var(--light);
            border-radius: 20px;
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            width: fit-content;
        }

.book-info-detail h1 {
            font-size: 32px;
            line-height: 1.2;
        }

.book-info-detail .author {
            font-size: 18px;
            color: var(--gray);
        }

.book-info-detail .author strong {
            color: var(--dark);
        }

.book-info-detail .rating-section {
            display: flex;
            align-items: center;
            gap: 15px;
            flex-wrap: wrap;
        }

.book-info-detail .rating-section .stars {
            color: var(--accent);
            font-size: 18px;
        }

.book-info-detail .rating-section .stars span {
            color: var(--gray);
            font-size: 14px;
            margin-left: 5px;
        }

.book-info-detail .rating-section .reviews-link {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

.book-info-detail .rating-section .reviews-link:hover {
            color: var(--secondary);
        }

.book-info-detail .price-section {
            background: var(--light);
            padding: 20px;
            border-radius: var(--border-radius);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 15px;
        }

.book-info-detail .price-section .price {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
        }

.book-info-detail .price-section .price .old-price {
            font-size: 20px;
            color: var(--gray);
            text-decoration: line-through;
            font-weight: 400;
            margin-right: 10px;
        }

.book-info-detail .price-section .stock {
            color: var(--tertiary);
            font-weight: 600;
        }

.book-info-detail .price-section .stock.out-of-stock {
            color: var(--secondary);
        }

/* Formulario de compra */
        .purchase-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

.purchase-form .form-row {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            align-items: center;
        }

.purchase-form .form-row label {
            font-weight: 600;
            font-size: 14px;
        }

.quantity-selector {
            display: flex;
            align-items: center;
            gap: 0;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            overflow: hidden;
        }

.quantity-selector button {
            padding: 10px 15px;
            border: none;
            background: var(--light);
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition);
            color: var(--dark);
        }

.quantity-selector button:hover {
            background: var(--primary);
            color: white;
        }

.quantity-selector input {
            width: 60px;
            padding: 10px 5px;
            border: none;
            border-left: 2px solid #e0e0e0;
            border-right: 2px solid #e0e0e0;
            text-align: center;
            font-size: 16px;
            font-weight: 700;
            outline: none;
            font-family: 'Montserrat', sans-serif;
        }

.purchase-form .actions {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

.btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

.btn-outline:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }

.btn-success {
            background: var(--tertiary);
            color: white;
        }

.btn-success:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(39, 174, 96, 0.3);
        }

/* Especificaciones */
        .specs-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-top: 10px;
        }

.spec-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 15px;
            background: var(--light);
            border-radius: 8px;
            font-size: 14px;
        }

.spec-item .label {
            color: var(--gray);
            font-weight: 600;
        }

.spec-item .value {
            font-weight: 600;
        }

/* ============================================
                   PESTAÑAS DE INFORMACIÓN
                   ============================================ */
        .tabs-section {
            background: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            margin-bottom: 40px;
        }

.tabs-header {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            border-bottom: 2px solid #eee;
        }

.tab-btn {
            padding: 18px 20px;
            background: transparent;
            border: none;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            color: var(--gray);
            font-family: 'Montserrat', sans-serif;
            position: relative;
        }

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

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

.tab-btn.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
        }

.tab-content {
            padding: 30px;
            display: none;
            animation: fadeIn 0.3s ease;
        }

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

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

.tab-content h3 {
            font-size: 20px;
            margin-bottom: 15px;
        }

.tab-content p {
            color: var(--gray);
            line-height: 1.8;
            margin-bottom: 15px;
        }

.tab-content .index-list {
            list-style: none;
            padding: 0;
        }

.tab-content .index-list li {
            padding: 12px 15px;
            border-bottom: 1px solid #f0f0f0;
            display: flex;
            justify-content: space-between;
            font-size: 14px;
        }

.tab-content .index-list li:last-child {
            border-bottom: none;
        }

.tab-content .index-list li .chapter {
            font-weight: 600;
        }

.tab-content .index-list li .pages {
            color: var(--gray);
        }

/* Valoraciones */
        .review-item {
            padding: 20px 0;
            border-bottom: 1px solid #f0f0f0;
        }

.review-item:last-child {
            border-bottom: none;
        }

.review-item .review-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
            flex-wrap: wrap;
            gap: 10px;
        }

.review-item .review-header .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

.review-item .review-header .review-user .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

.review-item .review-header .review-user .name {
            font-weight: 700;
        }

.review-item .review-header .review-user .date {
            font-size: 13px;
            color: var(--gray);
        }

.review-item .review-header .stars {
            color: var(--accent);
            font-size: 14px;
        }

.review-item .review-text {
            color: var(--gray);
            font-size: 15px;
            line-height: 1.7;
            margin-top: 5px;
        }

.review-item .review-helpful {
            margin-top: 10px;
            display: flex;
            gap: 15px;
            font-size: 13px;
            color: var(--gray);
        }

.review-item .review-helpful button {
            background: none;
            border: none;
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
            font-size: 13px;
        }

.review-item .review-helpful button:hover {
            color: var(--primary);
        }

/* ============================================
                   LIBROS RELACIONADOS
                   ============================================ */
        .related-books {
            padding: 40px 0;
        }

.related-books .section-title {
            text-align: center;
            font-size: 28px;
            margin-bottom: 10px;
        }

.related-books .section-subtitle {
            text-align: center;
            color: var(--gray);
            margin-bottom: 30px;
        }

.related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

.related-card {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.06);
            transition: var(--transition);
            cursor: pointer;
        }

.related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

.related-card .cover {
            padding-top: 100%;
            background: var(--light);
            position: relative;
            overflow: hidden;
        }

.related-card .cover img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

.related-card:hover .cover img {
            transform: scale(1.05);
        }

.related-card .info {
            padding: 15px 20px;
        }

.related-card .info h4 {
            font-size: 15px;
            margin-bottom: 3px;
        }

.related-card .info .author {
            font-size: 13px;
            color: var(--gray);
            margin-bottom: 5px;
        }

.related-card .info .price {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
        }

.related-card .info .price .old-price {
            font-size: 13px;
            color: var(--gray);
            text-decoration: line-through;
            font-weight: 400;
            margin-right: 5px;
        }

/* ============================================
                   FOOTER (igual que las páginas anteriores)
                   ============================================ */
        .footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
            margin-top: 40px;
        }

/* ============================================
                   RESPONSIVE
                   ============================================ */
        @media (max-width: 1024px) {
            .book-detail-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                padding: 30px;
            }

            .book-gallery {
                position: relative;
                top: 0;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .specs-grid {
                grid-template-columns: 1fr;
            }
        }

@media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: block;
            }

            .search-box {
                display: none;
            }

            .header-actions {
                gap: 10px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }

            .book-detail-grid {
                padding: 20px;
            }

            .book-info-detail h1 {
                font-size: 24px;
            }

            .book-info-detail .price-section .price {
                font-size: 26px;
            }

            .tabs-header {
                grid-template-columns: 1fr;
            }

            .tab-btn {
                padding: 14px 20px;
                border-bottom: 1px solid #eee;
            }

            .tab-btn.active::after {
                display: none;
            }

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

            .tab-content {
                padding: 20px;
            }

            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 15px;
            }

            .purchase-form .actions {
                flex-direction: column;
            }

            .purchase-form .actions .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .footer-social {
                justify-content: center;
            }
        }

@media (max-width: 480px) {
            .related-grid {
                grid-template-columns: 1fr;
                max-width: 300px;
                margin: 0 auto;
            }

            .book-info-detail .price-section {
                flex-direction: column;
                text-align: center;
            }

            .image-thumbnails {
                grid-template-columns: repeat(4, 1fr);
            }
        }

/* Modal de zoom */
        .zoom-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.9);
            z-index: 2000;
            justify-content: center;
            align-items: center;
            cursor: zoom-out;
            padding: 20px;
        }

.zoom-modal.active {
            display: flex;
        }

.zoom-modal img {
            max-width: 90%;
            max-height: 90%;
            object-fit: contain;
            border-radius: 8px;
        }

.zoom-modal .close-zoom {
            position: absolute;
            top: 20px;
            right: 30px;
            color: white;
            font-size: 40px;
            cursor: pointer;
            transition: var(--transition);
        }

.zoom-modal .close-zoom:hover {
            transform: rotate(90deg);
        }

/* ================= aportado inicialmente por contactos.html ================= */
.section-subtitle {
            text-align: center;
            color: var(--gray);
            font-size: 18px;
            margin-bottom: 40px;
        }

/* ============================================
                   CONTACTO PRINCIPAL
                   ============================================ */
        .contact-section {
            padding: 60px 0;
        }

.contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

/* ============================================
                   FORMULARIO DE CONTACTO
                   ============================================ */
        .contact-form-wrapper {
            background: var(--white);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }

.contact-form-wrapper h2 {
            font-size: 28px;
            margin-bottom: 10px;
        }

.contact-form-wrapper h2 span {
            color: var(--secondary);
        }

.contact-form-wrapper .form-subtitle {
            color: var(--gray);
            margin-bottom: 25px;
            font-size: 15px;
        }

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

.form-group label {
            display: block;
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 6px;
            color: var(--dark);
        }

.form-group label .required {
            color: var(--secondary);
        }

.form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 15px;
            font-family: 'Open Sans', sans-serif;
            transition: var(--transition);
            outline: none;
            background: var(--white);
        }

.form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(26, 58, 107, 0.08);
        }

.form-group input.error,
        .form-group select.error,
        .form-group textarea.error {
            border-color: var(--secondary);
        }

.form-group input.success,
        .form-group select.success,
        .form-group textarea.success {
            border-color: var(--tertiary);
        }

.form-group textarea {
            min-height: 120px;
            resize: vertical;
        }

.form-group .error-message {
            display: none;
            color: var(--secondary);
            font-size: 13px;
            margin-top: 5px;
        }

.form-group .error-message.visible {
            display: block;
        }

.form-group .char-counter {
            text-align: right;
            font-size: 13px;
            color: var(--gray);
            margin-top: 5px;
        }

.form-group .char-counter .limit {
            color: var(--secondary);
        }

.form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

.btn-submit {
            width: 100%;
            padding: 16px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 17px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            font-family: 'Montserrat', sans-serif;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

.btn-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(26, 58, 107, 0.3);
        }

.btn-submit:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none;
        }

/* ============================================
                   INFORMACIÓN DE CONTACTO
                   ============================================ */
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

.info-card {
            background: var(--white);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 20px;
        }

.info-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

.info-card .icon {
            width: 50px;
            height: 50px;
            background: var(--light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }

.info-card:hover .icon {
            background: var(--primary);
            color: white;
        }

.info-card .content h3 {
            font-size: 16px;
            margin-bottom: 4px;
        }

.info-card .content p {
            color: var(--gray);
            font-size: 14px;
            line-height: 1.7;
        }

.info-card .content a {
            color: var(--primary);
            transition: var(--transition);
        }

.info-card .content a:hover {
            color: var(--secondary);
        }

/* ============================================
                   MAPA
                   ============================================ */
        .map-section {
            padding: 60px 0;
            background: var(--white);
        }

.map-container {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }

.map-container iframe {
            width: 100%;
            height: 400px;
            border: none;
            display: block;
        }

.map-overlay {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(26, 58, 107, 0.9);
            backdrop-filter: blur(10px);
            padding: 15px 30px;
            border-radius: 50px;
            color: white;
            font-weight: 600;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

.map-overlay i {
            color: var(--accent);
        }

/* ============================================
                   HORARIO DE ATENCIÓN
                   ============================================ */
        .schedule-section {
            padding: 60px 0;
            background: var(--light);
        }

.schedule-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

.schedule-card {
            background: var(--white);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }

.schedule-card h3 {
            font-size: 22px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

.schedule-card h3 i {
            color: var(--accent);
        }

.schedule-table {
            width: 100%;
        }

.schedule-table tr {
            border-bottom: 1px solid #f0f0f0;
        }

.schedule-table tr:last-child {
            border-bottom: none;
        }

.schedule-table td {
            padding: 12px 0;
            font-size: 15px;
        }

.schedule-table td:first-child {
            font-weight: 600;
            color: var(--dark);
        }

.schedule-table td:last-child {
            color: var(--gray);
        }

.schedule-table .closed {
            color: var(--secondary);
            font-weight: 600;
        }

.schedule-table .open {
            color: var(--tertiary);
            font-weight: 600;
        }

.schedule-image {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--border-radius);
            padding: 50px 40px;
            color: white;
            text-align: center;
            min-height: 300px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

.schedule-image i {
            font-size: 80px;
            color: var(--accent);
            margin-bottom: 20px;
        }

.schedule-image h3 {
            font-size: 28px;
            margin-bottom: 10px;
        }

.schedule-image p {
            opacity: 0.8;
            max-width: 300px;
        }

/* ============================================
                   FAQ
                   ============================================ */
        .faq-section {
            padding: 60px 0;
            background: var(--white);
        }

.faq-grid {
            max-width: 800px;
            margin: 0 auto;
        }

.faq-item {
            background: var(--light);
            border-radius: var(--border-radius);
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

.faq-item:hover {
            box-shadow: var(--shadow);
        }

.faq-question {
            padding: 20px 25px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            user-select: none;
        }

.faq-question:hover {
            background: rgba(26, 58, 107, 0.05);
        }

.faq-question i {
            transition: var(--transition);
            color: var(--gray);
            font-size: 18px;
        }

.faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

.faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            padding: 0 25px;
        }

.faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 25px 20px;
        }

.faq-answer p {
            color: var(--gray);
            font-size: 15px;
            line-height: 1.8;
        }

.faq-answer a {
            color: var(--primary);
            font-weight: 600;
            transition: var(--transition);
        }

.faq-answer a:hover {
            color: var(--secondary);
        }

/* ============================================
                   REDES SOCIALES
                   ============================================ */
        .social-section {
            padding: 40px 0 60px;
            background: var(--light);
        }

.social-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

.social-card {
            background: var(--white);
            padding: 30px 20px;
            border-radius: var(--border-radius);
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow);
            cursor: pointer;
        }

.social-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

.social-card .social-icon {
            font-size: 40px;
            margin-bottom: 10px;
        }

.social-card .social-name {
            font-weight: 600;
            font-size: 14px;
        }

.social-card .social-followers {
            font-size: 13px;
            color: var(--gray);
        }

.social-card.facebook .social-icon { color: #1877f2; }

.social-card.twitter .social-icon { color: #1da1f2; }

.social-card.instagram .social-icon { color: #e4405f; }

.social-card.youtube .social-icon { color: #ff0000; }

.social-card.tiktok .social-icon { color: #000000; }

.social-card.facebook:hover { border-bottom: 4px solid #1877f2; }

.social-card.twitter:hover { border-bottom: 4px solid #1da1f2; }

.social-card.instagram:hover { border-bottom: 4px solid #e4405f; }

.social-card.youtube:hover { border-bottom: 4px solid #ff0000; }

.social-card.tiktok:hover { border-bottom: 4px solid #000000; }

/* ============================================
                   RESPONSIVE
                   ============================================ */
        @media (max-width: 1024px) {
            .contact-grid {
                grid-template-columns: 1fr;
            }

            .schedule-grid {
                grid-template-columns: 1fr;
            }

            .social-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

@media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: block;
            }

            .search-box {
                display: none;
            }

            .header-actions {
                gap: 10px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }

            .contact-form-wrapper {
                padding: 25px;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .info-card {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .schedule-card {
                padding: 25px;
            }

            .social-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .footer-social {
                justify-content: center;
            }

            .section-title {
                font-size: 28px;
            }

            .map-overlay {
                padding: 10px 20px;
                font-size: 12px;
                white-space: normal;
                text-align: center;
                bottom: 10px;
                width: 90%;
            }

            .map-container iframe {
                height: 250px;
            }
        }

@media (max-width: 480px) {
            .social-grid {
                grid-template-columns: 1fr 1fr;
            }

            .contact-form-wrapper {
                padding: 20px;
            }

            .info-card {
                padding: 20px;
            }
        }

/* Animación de entrada */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

/* Toast de éxito */
        .toast-success {
            position: fixed;
            top: 100px;
            right: 30px;
            background: var(--tertiary);
            color: white;
            padding: 20px 30px;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(39, 174, 96, 0.3);
            z-index: 9999;
            transform: translateX(400px);
            opacity: 0;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            max-width: 400px;
        }

.toast-success.active {
            transform: translateX(0);
            opacity: 1;
        }

.toast-success i {
            margin-right: 10px;
            font-size: 24px;
        }

.toast-success .close-toast {
            background: none;
            border: none;
            color: white;
            font-size: 20px;
            cursor: pointer;
            margin-left: 15px;
            opacity: 0.7;
            transition: var(--transition);
        }

.toast-success .close-toast:hover {
            opacity: 1;
        }

/* ================= aportado inicialmente por primerizos.html ================= */
/* ============================================
                   HERO PRIMERIZOS
                   ============================================ */
        .hero-primers {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

.hero-primers::before {
            content: '🎓';
            font-size: 300px;
            position: absolute;
            right: -50px;
            top: -50px;
            opacity: 0.05;
        }

.hero-primers .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

.hero-primers-content h1 {
            font-size: 48px;
            line-height: 1.2;
            margin-bottom: 20px;
        }

.hero-primers-content h1 .highlight {
            color: var(--accent);
        }

.hero-primers-content p {
            font-size: 18px;
            opacity: 0.9;
            margin-bottom: 30px;
        }

.hero-primers-content .features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-bottom: 30px;
        }

.hero-primers-content .features .feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
        }

.hero-primers-content .features .feature-item i {
            color: var(--accent);
            font-size: 18px;
        }

.hero-primers-image {
            display: flex;
            justify-content: center;
            align-items: center;
        }

.hero-primers-image .image-card {
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.1);
            width: 100%;
        }

.hero-primers-image .image-card i {
            font-size: 80px;
            color: var(--accent);
            margin-bottom: 20px;
        }

.hero-primers-image .image-card h3 {
            font-size: 24px;
            margin-bottom: 10px;
        }

.hero-primers-image .image-card p {
            opacity: 0.7;
            font-size: 14px;
        }

/* ============================================
                   GUÍA PASO A PASO
                   ============================================ */
        .step-guide {
            padding: 80px 0;
            background: var(--white);
        }

.steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

.step-card {
            text-align: center;
            padding: 30px 20px;
            background: var(--light);
            border-radius: var(--border-radius);
            transition: var(--transition);
            position: relative;
        }

.step-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

.step-card .step-number {
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            margin: 0 auto 20px;
            font-family: 'Montserrat', sans-serif;
        }

.step-card .step-icon {
            font-size: 40px;
            color: var(--primary);
            margin-bottom: 15px;
        }

.step-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

.step-card p {
            color: var(--gray);
            font-size: 14px;
            line-height: 1.7;
        }

.step-card .step-connector {
            position: absolute;
            top: 50%;
            right: -15px;
            width: 30px;
            height: 2px;
            background: var(--primary);
            opacity: 0.2;
        }

.step-card:last-child .step-connector {
            display: none;
        }

/* ============================================
                   RECURSOS GRATUITOS
                   ============================================ */
        .free-resources {
            padding: 80px 0;
            background: var(--light);
        }

.resources-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

.resource-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }

.resource-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

.resource-card .resource-icon {
            font-size: 48px;
            color: var(--primary);
            margin-bottom: 15px;
        }

.resource-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

.resource-card p {
            color: var(--gray);
            font-size: 14px;
            margin-bottom: 20px;
        }

.resource-card .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 25px;
            background: var(--primary);
            color: white;
            border-radius: 25px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

.resource-card .download-btn:hover {
            background: var(--primary-dark);
            transform: scale(1.05);
        }

.resource-card .file-size {
            display: block;
            font-size: 12px;
            color: var(--gray);
            margin-top: 8px;
        }

/* ============================================
                   WEBINARS Y EVENTOS
                   ============================================ */
        .webinars {
            padding: 80px 0;
            background: var(--white);
        }

.webinars-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

.webinar-card {
            background: var(--light);
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: var(--transition);
            border: 2px solid transparent;
        }

.webinar-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }

.webinar-card .webinar-date {
            background: var(--primary);
            color: white;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

.webinar-card .webinar-date .day {
            font-size: 28px;
            font-weight: 800;
        }

.webinar-card .webinar-date .month {
            font-size: 14px;
            opacity: 0.8;
        }

.webinar-card .webinar-info {
            padding: 20px;
        }

.webinar-card .webinar-info h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

.webinar-card .webinar-info p {
            color: var(--gray);
            font-size: 14px;
            margin-bottom: 8px;
        }

.webinar-card .webinar-info .webinar-meta {
            display: flex;
            gap: 15px;
            font-size: 13px;
            color: var(--gray);
            margin-bottom: 15px;
        }

.webinar-card .webinar-info .webinar-meta i {
            color: var(--primary);
        }

.webinar-card .webinar-info .btn-small {
            padding: 8px 20px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 25px;
            font-weight: 600;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
        }

.webinar-card .webinar-info .btn-small:hover {
            background: var(--secondary);
        }

.webinar-card .webinar-info .btn-small.full {
            background: var(--gray);
            cursor: not-allowed;
        }

/* ============================================
                   CHECKLIST DE PREPARACIÓN
                   ============================================ */
        .checklist-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }

.checklist-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

.checklist-content h2 {
            font-size: 32px;
            margin-bottom: 20px;
        }

.checklist-content h2 span {
            color: var(--secondary);
        }

.checklist-content p {
            color: var(--gray);
            margin-bottom: 25px;
        }

.checklist-items {
            list-style: none;
        }

.checklist-items li {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            cursor: pointer;
            transition: var(--transition);
        }

.checklist-items li:hover {
            padding-left: 10px;
        }

.checklist-items li input[type="checkbox"] {
            width: 20px;
            height: 20px;
            accent-color: var(--tertiary);
            cursor: pointer;
            flex-shrink: 0;
        }

.checklist-items li label {
            font-size: 15px;
            cursor: pointer;
        }

.checklist-items li.completed label {
            text-decoration: line-through;
            color: var(--gray);
        }

.checklist-image {
            background: var(--primary);
            border-radius: 20px;
            padding: 50px 40px;
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

.checklist-image::before {
            content: '✅';
            font-size: 200px;
            opacity: 0.05;
            position: absolute;
            right: -30px;
            bottom: -30px;
        }

.checklist-image .progress-circle {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            border: 8px solid rgba(255,255,255,0.2);
            border-top-color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 36px;
            font-weight: 800;
            position: relative;
            z-index: 1;
        }

.checklist-image h3 {
            font-size: 24px;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

.checklist-image p {
            opacity: 0.8;
            position: relative;
            z-index: 1;
        }

/* ============================================
                   TESTIMONIOS PRIMERIZOS
                   ============================================ */
        .testimonials-primers {
            padding: 80px 0;
            background: var(--white);
        }

.testimonials-primers-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

.testimonial-card .badge-primer {
            display: inline-block;
            background: var(--accent);
            color: var(--dark);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            margin-top: 10px;
        }

/* ============================================
                   COMUNIDAD Y NEWSLETTER
                   ============================================ */
        .community-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
        }

.community-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

.community-content h2 {
            font-size: 32px;
            margin-bottom: 15px;
        }

.community-content h2 span {
            color: var(--accent);
        }

.community-content p {
            opacity: 0.9;
            font-size: 17px;
            margin-bottom: 25px;
        }

.community-content .community-stats {
            display: flex;
            gap: 30px;
        }

.community-content .community-stats .stat {
            text-align: center;
        }

.community-content .community-stats .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
        }

.community-content .community-stats .stat-label {
            font-size: 13px;
            opacity: 0.8;
        }

.community-form {
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            padding: 40px;
            border-radius: var(--border-radius);
            border: 1px solid rgba(255,255,255,0.1);
        }

.community-form h3 {
            font-size: 22px;
            margin-bottom: 10px;
        }

.community-form p {
            opacity: 0.8;
            font-size: 14px;
            margin-bottom: 20px;
        }

.community-form .form-group {
            margin-bottom: 15px;
        }

.community-form .form-group input {
            width: 100%;
            padding: 14px 18px;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-family: 'Open Sans', sans-serif;
            outline: none;
        }

.community-form .form-group input:focus {
            box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.3);
        }

.community-form .form-group .checkbox-group {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255,255,255,0.8);
            font-size: 14px;
        }

.community-form .form-group .checkbox-group input {
            width: 18px;
            height: 18px;
            accent-color: var(--accent);
        }

.community-form button {
            width: 100%;
            padding: 14px;
            border: none;
            border-radius: 8px;
            background: var(--accent);
            color: var(--dark);
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            font-family: 'Montserrat', sans-serif;
        }

.community-form button:hover {
            transform: scale(1.02);
            box-shadow: 0 4px 20px rgba(243, 156, 18, 0.4);
        }

/* ============================================
                   RESPONSIVE
                   ============================================ */
        @media (max-width: 1024px) {
            .hero-primers .container {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero-primers-content .features {
                grid-template-columns: 1fr 1fr;
                justify-items: center;
            }

            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }

            .resources-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .webinars-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .checklist-container {
                grid-template-columns: 1fr;
            }

            .community-container {
                grid-template-columns: 1fr;
            }

            .testimonials-primers-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

@media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: block;
            }

            .search-box {
                display: none;
            }

            .header-actions {
                gap: 10px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }

            .hero-primers-content h1 {
                font-size: 32px;
            }

            .hero-primers-content .features {
                grid-template-columns: 1fr;
            }

            .steps-container {
                grid-template-columns: 1fr;
            }

            .step-card .step-connector {
                display: none;
            }

            .resources-grid {
                grid-template-columns: 1fr;
            }

            .webinars-grid {
                grid-template-columns: 1fr;
            }

            .testimonials-primers-grid {
                grid-template-columns: 1fr;
            }

            .community-content .community-stats {
                flex-direction: column;
                gap: 15px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .footer-social {
                justify-content: center;
            }

            .section-title {
                font-size: 28px;
            }

            .checklist-image .progress-circle {
                width: 120px;
                height: 120px;
                font-size: 28px;
            }
        }

@media (max-width: 480px) {
            .hero-primers-content h1 {
                font-size: 26px;
            }

            .community-form {
                padding: 25px;
            }
        }
/* =============================================================
   COMPONENTES RESUELTOS TRAS LA UNIFICACIÓN
   (existían con contenido ligeramente distinto según la página
   original; aquí se fija UNA sola versión canónica para todo el sitio)
   ============================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 35px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Botón secundario "sólido" — para usar sobre fondos claros (tarjetas, formularios) */
.btn-secondary {
    background: var(--primary);
    color: white;
}
.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(26, 58, 107, 0.3);
}

/* Botón "outline" — para usar sobre fondos claros (p.ej. junto a reseñas) */
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* Botón "outline claro" — para usar sobre fondos oscuros (hero, secciones dark) */
.btn-outline-light {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: white;
    transform: translateY(-3px);
}

/* En la caja de compra (ficha de producto), los botones deben repartirse
   el ancho disponible; se aplica solo ahí, no al .btn genérico */
.purchase-form .actions .btn,
.actions .btn {
    flex: 1;
    min-width: 150px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 18px;
    margin-bottom: 40px;
}

.book-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.testimonial-card {
    background: var(--light);
    padding: 30px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}
.testimonial-card .stars {
    color: var(--accent);
    margin-bottom: 15px;
    font-size: 15px;
}
.testimonial-card blockquote {
    font-style: italic;
    margin-bottom: 15px;
    color: var(--dark);
    font-size: 15px;
    line-height: 1.7;
}

/* =============================================================
   CARRITO DE COMPRA
   ============================================================= */
.cart-section {
    padding: 50px 0 80px;
}
.cart-title {
    font-size: 32px;
    margin-bottom: 30px;
}
.cart-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 30px;
    align-items: start;
}
@media (max-width: 900px) {
    .cart-layout { grid-template-columns: 1fr; }
}

.cart-empty {
    text-align: center;
    padding: 70px 20px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}
.cart-empty i {
    font-size: 56px;
    color: var(--gray);
    margin-bottom: 20px;
}
.cart-empty h3 {
    margin-bottom: 10px;
}
.cart-empty p {
    color: var(--gray);
    margin-bottom: 25px;
}

.cart-items {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.cart-item {
    display: grid;
    grid-template-columns: 90px 1fr auto auto auto;
    gap: 18px;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #eee;
}
.cart-item:last-child { border-bottom: none; }
.cart-item img {
    width: 90px;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}
.cart-item-info h4 {
    font-size: 16px;
    margin-bottom: 4px;
}
.cart-item-info .category-tag {
    margin-bottom: 6px;
}
.cart-item-info .format {
    font-size: 13px;
    color: var(--gray);
}
.cart-item-qty {
    display: flex;
    align-items: center;
    border: 2px solid #eee;
    border-radius: 50px;
    overflow: hidden;
}
.cart-item-qty button {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--light);
    cursor: pointer;
    font-size: 16px;
    color: var(--primary);
}
.cart-item-qty input {
    width: 36px;
    text-align: center;
    border: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
}
.cart-item-price {
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    color: var(--primary);
    white-space: nowrap;
}
.cart-item-remove {
    background: none;
    border: none;
    color: var(--secondary);
    font-size: 18px;
    cursor: pointer;
    opacity: 0.7;
    transition: var(--transition);
}
.cart-item-remove:hover { opacity: 1; transform: scale(1.15); }

.cart-summary {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 28px;
    position: sticky;
    top: 100px;
}
.cart-summary h3 {
    font-size: 18px;
    margin-bottom: 20px;
}
.cart-summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 15px;
    color: var(--gray);
    margin-bottom: 14px;
}
.cart-summary-row.total {
    border-top: 2px dashed #eee;
    padding-top: 16px;
    margin-top: 6px;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    font-family: 'Montserrat', sans-serif;
}
.cart-summary .btn {
    width: 100%;
    margin-top: 18px;
}
.cart-coupon {
    display: flex;
    gap: 8px;
    margin-top: 18px;
}
.cart-coupon input {
    flex: 1;
    padding: 10px 14px;
    border: 2px solid #eee;
    border-radius: 50px;
    font-family: inherit;
}
.cart-coupon button {
    padding: 10px 18px;
    border-radius: 50px;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}

/* Checkout: dirección + pago */
.checkout-block {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 28px;
    margin-bottom: 24px;
}
.checkout-block h3 {
    font-size: 17px;
    margin-bottom: 18px;
}
.payment-methods {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.payment-methods label {
    border: 2px solid #eee;
    border-radius: var(--border-radius);
    padding: 12px 18px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}
.payment-methods label:has(input:checked) {
    border-color: var(--primary);
    background: rgba(26,58,107,0.05);
    color: var(--primary);
}

/* Confirmación de pedido */
.order-confirm {
    max-width: 560px;
    margin: 60px auto 100px;
    text-align: center;
}
.order-confirm .icon-ok {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(39,174,96,0.12);
    color: var(--tertiary);
    font-size: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}
.order-confirm .order-number {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: var(--primary);
    margin: 20px 0 30px;
}

/* =============================================================
   PANEL DE ADMINISTRACIÓN
   ============================================================= */
.admin-body {
    display: flex;
    min-height: 100vh;
    background: var(--light);
    align-items: stretch;
}
.admin-sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--primary-dark);
    color: white;
    padding: 26px 18px;
    display: flex;
    flex-direction: column;
}
.admin-sidebar .logo-text { color: white; }
.admin-sidebar .logo-text small { color: rgba(255,255,255,0.55); }
.admin-nav {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.admin-nav a {
    color: rgba(255,255,255,0.75);
    padding: 11px 14px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.admin-nav a:hover { background: rgba(255,255,255,0.08); color: white; }
.admin-nav a.active { background: var(--primary); color: white; }
.admin-nav .badge-count {
    background: var(--secondary);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 1px 8px;
    border-radius: 50px;
}
.admin-sidebar-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.12);
    font-size: 13px;
}
.admin-sidebar-footer a { color: rgba(255,255,255,0.75); display: block; margin-top: 8px; }
.admin-sidebar-footer a:hover { color: white; }

.admin-main {
    flex: 1;
    padding: 34px 40px 60px;
    max-width: 1300px;
}
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 28px;
}
.admin-header h1 { font-size: 26px; margin-bottom: 4px; }
.admin-header p { color: var(--gray); }

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 18px;
    margin-bottom: 32px;
}
.admin-stat-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 22px;
}
.admin-stat-card .value {
    font-family: 'Montserrat', sans-serif;
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    display: block;
}
.admin-stat-card.alert .value { color: var(--secondary); }
.admin-stat-card .label { color: var(--gray); font-size: 13px; }

.admin-table-wrap {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    overflow-x: auto;
}
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.admin-table th {
    text-align: left;
    background: var(--light);
    color: var(--gray);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 14px 18px;
    white-space: nowrap;
}
.admin-table td {
    padding: 14px 18px;
    border-top: 1px solid #f0f0f0;
    vertical-align: middle;
}
.admin-table tr:hover td { background: #fafafa; }

.admin-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.admin-toolbar input[type="text"],
.admin-toolbar select {
    padding: 10px 16px;
    border: 2px solid #eee;
    border-radius: 50px;
    font-family: inherit;
    font-size: 14px;
}

.status-pill {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
}
.status-pill.pendiente_pago { background: #fdf0dc; color: #a9720f; }
.status-pill.pagado,
.status-pill.entregado { background: rgba(39,174,96,0.12); color: var(--tertiary); }
.status-pill.preparando,
.status-pill.enviado { background: rgba(26,58,107,0.1); color: var(--primary); }
.status-pill.cancelado { background: rgba(192,57,43,0.1); color: var(--secondary); }

.badge-pill {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
}
.badge-pill.si { background: rgba(39,174,96,0.12); color: var(--tertiary); }
.badge-pill.no { background: #f0f0f0; color: var(--gray); }

.admin-form-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px 32px;
    max-width: 780px;
}
.admin-form-card .form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
@media (max-width: 620px) {
    .admin-form-card .form-row-2 { grid-template-columns: 1fr; }
}
.admin-form-card .check-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.admin-login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-dark);
    padding: 20px;
}
.admin-login-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    padding: 40px 36px;
    max-width: 400px;
    width: 100%;
}
.admin-login-card .logo { justify-content: center; margin-bottom: 22px; }

.alert-box {
    border-radius: var(--border-radius);
    padding: 14px 18px;
    margin-bottom: 20px;
    font-size: 14px;
}
.alert-box.error { background: #fdecea; color: var(--secondary); }
.alert-box.success { background: rgba(39,174,96,0.12); color: var(--tertiary); }