:root {
            --primary-color: #104e1b;
            --secondary-color: hsl(129, 93%, 16%);
            --accent-color: #13520d;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --success-color: #025a16;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --border-radius: 8px;
            --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        [data-theme="dark"] {
            --primary-color: #014b1a;
            --secondary-color: #2d6330;
            --accent-color: #53945e;
            --light-color: #212529;
            --dark-color: #f8f9fa;
            --success-color: #033d10;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background-color: var(--light-color);
            color: var(--dark-color);
            transition: var(--transition);
            line-height: 1.6;
        }

        /* Loading Screen */
        .loading-screen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: var(--light-color);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.5s ease;
        }

        .loading-screen.hidden {
            opacity: 0;
            pointer-events: none;
        }

        .loader {
            width: 50px;
            height: 50px;
            border: 5px solid var(--primary-color);
            border-radius: 50%;
            border-top-color: transparent;
            animation: spin 1s linear infinite;
            margin-bottom: 20px;
        }

        @keyframes spin {
            100% {
                transform: rotate(360deg);
            }
        }

        /* Connection Status */
        .connection-status {
            position: fixed;
            bottom: 20px;
            right: 20px;
            padding: 15px 20px;
            background-color: var(--danger-color);
            color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            display: none;
            z-index: 1000;
            animation: slideIn 0.5s ease;
        }

        .connection-status.show {
            display: block;
        }

        .connection-status.success {
            background-color: var(--success-color);
        }

        .connection-status button {
            background-color: white;
            color: var(--danger-color);
            border: none;
            padding: 5px 10px;
            border-radius: var(--border-radius);
            margin-left: 10px;
            cursor: pointer;
            font-weight: bold;
        }

        .connection-status.success button {
            color: var(--success-color);
        }

        @keyframes slideIn {
            from {
                transform: translateY(100px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        /* Header */
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 15px 0;
            box-shadow: var(--box-shadow);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
        }

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

        .logo {
            font-size: 24px;
            font-weight: 700;
            display: flex;
            align-items: center;
        }

        .logo i {
            margin-right: 10px;
            font-size: 28px;
        }

        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 20px;
        }

        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
        }

        nav ul li a:hover {
            color: var(--accent-color);
        }

        nav ul li a i {
            margin-right: 5px;
        }

        .header-actions {
            display: flex;
            align-items: center;
        }

        .theme-toggle, .cart-btn, .user-btn {
            background: none;
            border: none;
            color: white;
            font-size: 20px;
            margin-left: 15px;
            cursor: pointer;
            position: relative;
        }

        .cart-count {
            position: absolute;
            top: -8px;
            right: -8px;
            background-color: var(--danger-color);
            color: white;
            border-radius: 50%;
            width: 20px;
            height: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 12px;
            font-weight: bold;
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1500382017468-9049fed747ef?auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            height: 500px;
            display: flex;
            align-items: center;
            color: white;
            text-align: center;
            margin-bottom: 50px;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 48px;
            margin-bottom: 20px;
            animation: fadeIn 1s ease;
        }

        .hero p {
            font-size: 20px;
            margin-bottom: 30px;
            animation: fadeIn 1.5s ease;
        }

        .btn {
            display: inline-block;
            background-color: var(--accent-color);
            color: white;
            padding: 12px 30px;
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            font-size: 16px;
        }

        .btn:hover {
            background-color: #1d8d4c;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }

        .btn-outline {
            background-color: transparent;
            border: 2px solid white;
            margin-left: 15px;
        }

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

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

        /* Categories Section */
        .section-title {
            text-align: center;
            margin-bottom: 40px;
            position: relative;
        }

        .section-title h2 {
            font-size: 32px;
            display: inline-block;
            padding-bottom: 10px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--accent-color);
        }

        .categories {
            padding: 60px 0;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 30px;
        }

        .category-card {
            background-color: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            cursor: pointer;
            opacity: 0;
            transform: translateY(20px);
        }

        .category-card.animate {
            opacity: 1;
            transform: translateY(0);
        }

        .category-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .category-img {
            height: 180px;
            overflow: hidden;
        }

        .category-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .category-card:hover .category-img img {
            transform: scale(1.1);
        }

        .category-info {
            padding: 20px;
            text-align: center;
        }

        .category-info h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .category-info p {
            color: #666;
            font-size: 14px;
            margin-bottom: 15px;
        }

        /* Featured Books */
        .featured-books {
            padding: 60px 0;
            background-color: rgba(74, 111, 165, 0.05);
        }

        .books-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }

        .book-card {
            background-color: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            opacity: 0;
            transform: translateY(20px);
        }

        .book-card.animate {
            opacity: 1;
            transform: translateY(0);
        }

        .book-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .book-img {
            height: 250px;
            overflow: hidden;
            position: relative;
        }

        .book-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .book-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            background-color: var(--danger-color);
            color: white;
            padding: 5px 10px;
            border-radius: var(--border-radius);
            font-size: 12px;
            font-weight: bold;
        }

        .book-info {
            padding: 20px;
        }

        .book-info h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .book-author {
            color: #666;
            font-size: 14px;
            margin-bottom: 10px;
        }

        .book-price {
            font-size: 20px;
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        .book-rating {
            color: var(--warning-color);
            margin-bottom: 15px;
        }

        .book-actions {
            display: flex;
            justify-content: space-between;
        }

        .book-actions button {
            flex: 1;
            padding: 8px;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .add-to-cart {
            background-color: var(--primary-color);
            color: white;
            margin-right: 10px;
        }

        .add-to-cart:hover {
            background-color: var(--secondary-color);
        }

        .buy-now {
            background-color: var(--accent-color);
            color: white;
        }

        .buy-now:hover {
            background-color: #098137;
        }

        .book-actions button i {
            margin-right: 5px;
        }

        /* Scrolling Books */
        .scrolling-books {
            padding: 60px 0;
            overflow: hidden;
        }

        .scrolling-container {
            position: relative;
            height: 350px;
        }

        .scrolling-track {
            display: flex;
            position: absolute;
            left: 0;
            gap: 20px;
            animation: scroll 30s linear infinite;
        }

        .scrolling-book {
            width: 200px;
            background-color: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            position: relative;
        }

        .scrolling-book:hover {
            transform: translateY(-10px);
        }

        .scrolling-book-img {
            height: 150px;
            overflow: hidden;
        }

        .scrolling-book-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scrolling-book-info {
            padding: 15px;
        }

        .scrolling-book-info h4 {
            font-size: 16px;
            margin-bottom: 5px;
        }

        .scrolling-book-info p {
            font-size: 14px;
            color: #666;
            margin-bottom: 10px;
        }

        .scrolling-book-price {
            font-weight: bold;
            color: var(--primary-color);
        }

        .scrolling-book-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: var(--transition);
            padding: 15px;
            text-align: center;
        }

        .scrolling-book:hover .scrolling-book-overlay {
            opacity: 1;
        }

        .scrolling-book-overlay p {
            color: white;
            margin-bottom: 15px;
            font-size: 14px;
        }

        .scrolling-book-overlay button {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 8px 15px;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
            margin: 5px 0;
            width: 100%;
            max-width: 150px;
        }

        .scrolling-book-overlay button:hover {
            background-color: #068510;
        }

        @keyframes scroll {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }

        /* Stats Section */
        .stats {
            padding: 80px 0;
            background: linear-gradient(rgba(5, 117, 61, 0.9), rgba(3, 109, 47, 0.9)), url('/image/about.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: white;
            text-align: center;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 50px;
        }

        .stat-item {
            padding: 30px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
            backdrop-filter: blur(5px);
            transition: var(--transition);
        }

        .stat-item:hover {
            transform: translateY(-10px);
            background-color: rgba(255, 255, 255, 0.2);
        }

        .stat-icon {
            font-size: 40px;
            margin-bottom: 15px;
            color: var(--accent-color);
        }

        .stat-number {
            font-size: 40px;
            font-weight: bold;
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 18px;
        }

        /* About Section */
        .about {
            padding: 80px 0;
        }

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

        .about-img {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }

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

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

        .about-text h2 {
            font-size: 32px;
            margin-bottom: 20px;
            color: var(--primary-color);
        }

        .about-text p {
            margin-bottom: 20px;
            color: #555;
        }

        .about-features {
            margin-top: 30px;
        }

        .feature-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 20px;
        }

        .feature-icon {
            background-color: var(--accent-color);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            margin-right: 15px;
            flex-shrink: 0;
        }

        .feature-text h4 {
            font-size: 18px;
            margin-bottom: 5px;
        }

        .feature-text p {
            margin-bottom: 0;
            color: #666;
            font-size: 14px;
        }

        /* Testimonials */
        .testimonials {
            padding: 80px 0;
            background-color: rgba(74, 111, 165, 0.05);
        }

        .testimonial-slider {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }

        .testimonial-slide {
            background-color: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            text-align: center;
            display: none;
        }

        .testimonial-slide.active {
            display: block;
            animation: fadeIn 0.5sec ease;
        }

        .testimonial-text {
            font-size: 18px;
            font-style: italic;
            margin-bottom: 20px;
            color: #555;
        }

        .testimonial-author {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .author-img {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .author-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .author-name {
            font-weight: bold;
            font-size: 18px;
            margin-bottom: 5px;
        }

        .author-title {
            color: #666;
            font-size: 14px;
        }

        .testimonial-nav {
            display: flex;
            justify-content: center;
            margin-top: 30px;
        }

        .testimonial-dot {
            width: 12px;
            height: 12px;
            background-color: #ccc;
            border-radius: 50%;
            margin: 0 5px;
            cursor: pointer;
            transition: var(--transition);
        }

        .testimonial-dot.active {
            background-color: var(--primary-color);
        }

        /* Newsletter */
        .newsletter {
            padding: 60px 0;
            background-color: var(--primary-color);
            color: white;
            text-align: center;
        }

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

        .newsletter p {
            max-width: 600px;
            margin: 0 auto 30px;
        }

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

        .newsletter-form input {
            flex: 1;
            padding: 15px;
            border: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 16px;
        }

        .newsletter-form button {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }

        .newsletter-form button:hover {
            background-color: #129c40;
        }

        /* Footer */
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 20px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-column h3 {
            font-size: 20px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--accent-color);
        }

        .footer-column p {
            margin-bottom: 15px;
            color: #bbb;
        }

        .footer-links li {
            margin-bottom: 10px;
            list-style: none;
        }

        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
        }

        .footer-links a:hover {
            color: var(--accent-color);
            transform: translateX(5px);
        }

        .footer-links a i {
            margin-right: 8px;
        }

        .social-links {
            display: flex;
            gap: 15px;
        }

        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: white;
            transition: var(--transition);
        }

        .social-links a:hover {
            background-color: var(--accent-color);
            transform: translateY(-5px);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #bbb;
            font-size: 14px;
        }

        /* Modal Overlay */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }

        .modal-overlay.active {
            opacity: 1;
            pointer-events: all;
        }

        .modal {
            background-color: var(--light-color);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            width: 90%;
            max-width: 500px;
            max-height: 90vh;
            overflow-y: auto;
            transform: translateY(-50px);
            transition: var(--transition);
            position: relative;
        }

        .modal-overlay.active .modal {
            transform: translateY(0);
        }

        .modal-close {
            position: absolute;
            top: 15px;
            right: 15px;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark-color);
        }

        .modal-header {
            padding: 20px;
            border-bottom: 1px solid #eee;
        }

        .modal-header h3 {
            font-size: 22px;
            color: var(--primary-color);
        }

        .modal-body {
            padding: 20px;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 16px;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--accent-color);
            outline: none;
        }

        .form-row {
            display: flex;
            gap: 15px;
        }

        .form-row .form-group {
            flex: 1;
        }

        .modal-footer {
            padding: 20px;
            border-top: 1px solid #eee;
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }

        /* Cart Modal */
        .cart-items {
            max-height: 300px;
            overflow-y: auto;
            margin-bottom: 20px;
        }

        .cart-item {
            display: flex;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid #eee;
        }

        .cart-item-img {
            width: 60px;
            height: 80px;
            overflow: hidden;
            margin-right: 15px;
            border-radius: 4px;
        }

        .cart-item-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .cart-item-details {
            flex: 1;
        }

        .cart-item-title {
            font-weight: 500;
            margin-bottom: 5px;
        }

        .cart-item-price {
            color: var(--primary-color);
            font-weight: bold;
        }

        .cart-item-remove {
            background: none;
            border: none;
            color: var(--danger-color);
            cursor: pointer;
            font-size: 18px;
        }

        .cart-total {
            display: flex;
            justify-content: space-between;
            font-size: 18px;
            font-weight: bold;
            margin-bottom: 20px;
        }

        /* Login/Signup Modal */
        .auth-tabs {
            display: flex;
            border-bottom: 1px solid #eee;
        }

        .auth-tab {
            flex: 1;
            text-align: center;
            padding: 15px;
            cursor: pointer;
            transition: var(--transition);
            border-bottom: 3px solid transparent;
        }

        .auth-tab.active {
            border-bottom-color: var(--accent-color);
            color: var(--accent-color);
            font-weight: bold;
        }

        .auth-content {
            display: none;
        }

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

        .auth-footer {
            text-align: center;
            margin-top: 20px;
        }

        .auth-footer a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 500;
        }

        /* Chat Widget */
        .chat-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 100;
        }

        .chat-button {
            width: 60px;
            height: 60px;
            background-color: var(--accent-color);
            color: white;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 24px;
            cursor: pointer;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
        }

        .chat-button:hover {
            transform: scale(1.1);
        }

        .chat-box {
            position: absolute;
            bottom: 80px;
            right: 0;
            width: 350px;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            overflow: hidden;
            transform: scale(0);
            transform-origin: bottom right;
            transition: var(--transition);
        }

        .chat-box.active {
            transform: scale(1);
        }

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

        .chat-header h3 {
            font-size: 18px;
            margin: 0;
        }

        .chat-close {
            background: none;
            border: none;
            color: white;
            font-size: 20px;
            cursor: pointer;
        }

        .chat-messages {
            height: 300px;
            overflow-y: auto;
            padding: 15px;
            background-color: #f9f9f9;
        }

        .message {
            margin-bottom: 15px;
            max-width: 80%;
        }

        .message.bot {
            align-self: flex-start;
        }

        .message.user {
            align-self: flex-end;
            margin-left: auto;
        }

        .message-content {
            padding: 10px 15px;
            border-radius: 18px;
            font-size: 14px;
        }

        .message.bot .message-content {
            background-color: white;
            border: 1px solid #ddd;
        }

        .message.user .message-content {
            background-color: var(--accent-color);
            color: white;
        }

        .chat-input {
            display: flex;
            padding: 10px;
            border-top: 1px solid #eee;
        }

        .chat-input input {
            flex: 1;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 20px;
            margin-right: 10px;
        }

        .chat-input button {
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
        }

        /* Welcome Modal */
        .welcome-modal .modal {
            max-width: 600px;
        }

        .welcome-content {
            text-align: center;
            padding: 30px;
        }

        .welcome-content h2 {
            font-size: 28px;
            margin-bottom: 20px;
            color: var(--primary-color);
        }

        .welcome-content p {
            margin-bottom: 30px;
            font-size: 16px;
        }

        .welcome-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
        }

        /* Promo Modal */
        .promo-modal .modal {
            max-width: 800px;
        }

        .promo-slider {
            position: relative;
        }

        .promo-slides {
            display: flex;
            overflow: hidden;
        }

        .promo-slide {
            min-width: 100%;
            transition: var(--transition);
        }

        .promo-slide img {
            width: 100%;
            height: 300px;
            object-fit: cover;
        }

        .promo-info {
            padding: 20px;
            text-align: center;
        }

        .promo-info h3 {
            font-size: 22px;
            margin-bottom: 10px;
            color: var(--primary-color);
        }

        .promo-info p {
            margin-bottom: 15px;
            color: #555;
        }

        .promo-price {
            font-size: 24px;
            font-weight: bold;
            color: var(--danger-color);
            margin-bottom: 20px;
        }

        .promo-nav {
            position: absolute;
            top: 50%;
            width: 100%;
            display: flex;
            justify-content: space-between;
            transform: translateY(-50%);
            padding: 0 15px;
        }

        .promo-nav button {
            background-color: rgba(0, 0, 0, 0.5);
            color: white;
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .promo-nav button:hover {
            background-color: var(--primary-color);
        }

        .promo-dots {
            display: flex;
            justify-content: center;
            margin-top: 15px;
        }

        .promo-dot {
            width: 12px;
            height: 12px;
            background-color: #ccc;
            border-radius: 50%;
            margin: 0 5px;
            cursor: pointer;
            transition: var(--transition);
        }

        .promo-dot.active {
            background-color: var(--primary-color);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }

            .about-content {
                grid-template-columns: 1fr;
            }

            .about-img {
                order: -1;
            }
        }

        @media (max-width: 768px) {

            .hero h1 {
                font-size: 36px;
            }

            .hero p {
                font-size: 18px;
            }

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

            .newsletter-form {
                flex-direction: column;
            }

            .newsletter-form input {
                border-radius: var(--border-radius);
                margin-bottom: 10px;
            }

            .newsletter-form button {
                border-radius: var(--border-radius);
                padding: 15px;
            }

            .welcome-buttons {
                flex-direction: column;
                gap: 10px;
            }
        }

        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }

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

            .category-grid, .books-container {
                grid-template-columns: 1fr;
            }

            .form-row {
                flex-direction: column;
                gap: 0;
            }

            .chat-box {
                width: 300px;
            }
        }

        /* Dark Mode Styles */
        [data-theme="dark"] body {
            background-color: #121212;
        }

        [data-theme="dark"] .category-card,
        [data-theme="dark"] .book-card,
        [data-theme="dark"] .scrolling-book,
        [data-theme="dark"] .testimonial-slide,
        [data-theme="dark"] .modal,
        [data-theme="dark"] .message.bot .message-content {
            background-color: #1e1e1e;
            color: #e0e0e0;
        }

        [data-theme="dark"] .category-info p,
        [data-theme="dark"] .book-author,
        [data-theme="dark"] .book-info p,
        [data-theme="dark"] .feature-text p,
        [data-theme="dark"] .testimonial-text,
        [data-theme="dark"] .footer-links a,
        [data-theme="dark"] .footer-column p {
            color: #b0b0b0;
        }

        [data-theme="dark"] .form-group input,
        [data-theme="dark"] .form-group select,
        [data-theme="dark"] .form-group textarea,
        [data-theme="dark"] .chat-input input {
            background-color: #2d2d2d;
            border-color: #3d3d3d;
            color: #e0e0e0;
        }

        [data-theme="dark"] .modal-header,
        [data-theme="dark"] .modal-footer,
        [data-theme="dark"] .chat-header {
            background-color: #2d2d2d;
            border-color: #3d3d3d;
        }

        [data-theme="dark"] .chat-messages {
            background-color: #252525;
        }

        /* Animation Classes */
        .fade-in {
            animation: fadeIn 1s ease forwards;
        }

        .slide-up {
            animation: slideUp 1s ease forwards;
        }

        .pulse {
            animation: pulse 2s infinite;
        }
        .menu-toggle{
            display: none;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

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

        /* Progress Bars */
        .progress-container {
            width: 100%;
            background-color: #e0e0e0;
            border-radius: 10px;
            margin: 20px 0;
            overflow: hidden;
        }

        [data-theme="dark"] .progress-container {
            background-color: #3d3d3d;
        }

        .progress-bar {
            height: 10px;
            background-color: var(--accent-color);
            border-radius: 10px;
            width: 0;
            transition: width 1s ease;
        }

        .progress-text {
            text-align: right;
            font-size: 12px;
            margin-top: 5px;
            color: #666;
        }

        [data-theme="dark"] .progress-text {
            color: #b0b0b0;
        }


@media (max-width: 768px) {
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        padding: 10px 0;
    }

    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background-color: var(--primary-color);
        transition: var(--transition);
        z-index: 99;
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    }

    nav.active {
        left: 0;
    }

    nav ul {
        flex-direction: column;
        padding: 20px;
    }

    nav ul li {
        margin: 15px 0;
    }

    .menu-toggle {
        display: block;
        font-size: 24px;
        background-color: transparent;
        cursor: pointer;
        border: none;
    }
    .menu-toggle i{
        color: white;
    }

    .header-actions {
        gap: 15px;
    }
}

/* Animations de Scroll */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

[data-animate].animate {
    opacity: 1;
    transform: translateY(0);
}

[data-animate-delay="100"] { transition-delay: 0.1s; }
[data-animate-delay="200"] { transition-delay: 0.2s; }
[data-animate-delay="300"] { transition-delay: 0.3s; }