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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: #2c3e50;
}

.logo img {
    width: 40px;
    height: 40px;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #3498db;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 80px 0;
}

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

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #6c757d;
}

.cta-button {
    display: inline-block;
    background: #3498db;
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button:hover {
    background: #2980b9;
}

.hero-image {
    margin-top: 3rem;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    max-height: 300px;
}

/* Page Header */
.page-header {
    background: #f8f9fa;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.page-header p {
    font-size: 1.1rem;
    color: #6c757d;
}

/* Books Grid */
.featured-books,
.books-directory,
.categories-listing {
    padding: 80px 0;
}

.featured-books h2,
.categories-preview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.book-card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.book-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.book-card-content {
    padding: 1.5rem;
}

.book-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.book-card .author {
    color: #6c757d;
    margin-bottom: 0.5rem;
}

.book-card .category {
    display: inline-block;
    background: #e9ecef;
    color: #495057;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.book-card p {
    color: #6c757d;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.book-card .read-more {
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
}

.book-card .read-more:hover {
    text-decoration: underline;
}

/* Filters */
.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.search-box input {
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    width: 300px;
    max-width: 100%;
}

.search-box input:focus {
    outline: none;
    border-color: #3498db;
}

.category-filter select {
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
}

.category-filter select:focus {
    outline: none;
    border-color: #3498db;
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: #6c757d;
}

/* Book Details */
.book-details {
    padding: 80px 0;
}

.book-detail-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.book-detail-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.book-detail-info h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.book-detail-info .author {
    font-size: 1.2rem;
    color: #6c757d;
    margin-bottom: 1rem;
}

.book-detail-info .category {
    display: inline-block;
    background: #3498db;
    color: white;
    padding: 8px 16px;
    border-radius: 5px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.book-detail-info .year {
    color: #6c757d;
    margin-bottom: 1.5rem;
}

.book-detail-description {
    margin-bottom: 2rem;
}

.book-detail-description h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.book-detail-description p {
    line-height: 1.7;
    color: #555;
}

.key-takeaways h3,
.who-its-for h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.key-takeaways ul {
    list-style: none;
    padding-left: 0;
}

.key-takeaways li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: #555;
}

.key-takeaways li::before {
    content: "•";
    color: #3498db;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.who-its-for p {
    color: #555;
    line-height: 1.7;
}

.external-links {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e9ecef;
}

.external-links h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.links-grid {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.external-link {
    display: inline-block;
    background: #f8f9fa;
    color: #333;
    padding: 12px 20px;
    text-decoration: none;
    border-radius: 5px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
    font-weight: 500;
}

.external-link:hover {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

.purchase-disclaimer {
    background: #f8f9fa;
    border-left: 4px solid #ffc107;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 5px 5px 0;
}

.purchase-disclaimer p {
    margin: 0;
    color: #856404;
    font-weight: 500;
}

.book-not-found {
    padding: 80px 0;
    text-align: center;
}

.book-not-found h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.book-not-found p {
    font-size: 1.1rem;
    color: #6c757d;
    margin-bottom: 2rem;
}

/* Categories */
.categories-preview {
    background: #f8f9fa;
    padding: 80px 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.category-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.category-card:hover {
    transform: translateY(-5px);
}

.category-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.category-card p {
    color: #6c757d;
    margin-bottom: 1.5rem;
}

.category-card a {
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
}

.category-card a:hover {
    text-decoration: underline;
}

.category-section {
    margin-bottom: 4rem;
}

.category-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #2c3e50;
    border-bottom: 3px solid #3498db;
    padding-bottom: 0.5rem;
}

.category-section p {
    color: #6c757d;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Contact */
.contact-content {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h2,
.contact-form h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.contact-item p {
    color: #6c757d;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

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

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 5px;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Legal Content */
.legal-content,
.about-content {
    padding: 80px 0;
}

.content-section {
    margin-bottom: 3rem;
}

.content-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.content-section h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: #2c3e50;
}

.content-section p {
    color: #555;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.content-section ul {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.content-section li {
    color: #555;
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #2c3e50;
    color: white;
    z-index: 1000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-content p {
    margin: 0;
    margin-right: 2rem;
}

.cookie-content button {
    background: #3498db;
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    white-space: nowrap;
}

.cookie-content button:hover {
    background: #2980b9;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #3498db;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #3498db;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 2rem;
    text-align: center;
    color: #bdc3c7;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
    }
    
    .book-detail-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .cookie-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .cookie-content p {
        margin-right: 0;
    }
    
    .links-grid {
        flex-direction: column;
    }
    
    .external-link {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .featured-books,
    .books-directory,
    .categories-listing,
    .contact-content,
    .legal-content,
    .about-content {
        padding: 40px 0;
    }
    
    .page-header {
        padding: 40px 0;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .book-card-content {
        padding: 1rem;
    }
    
    .category-card {
        padding: 1.5rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mt-2 {
    margin-top: 2rem;
}

.hidden {
    display: none;
}

.visible {
    display: block;
}

<!--