* {
    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;
}

.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #333;
    color: white;
    z-index: 1000;
    padding: 15px 0;
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.cookie-content p {
    margin: 0;
    flex: 1;
    margin-right: 20px;
}

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

.nav {
    padding: 1rem 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
    font-weight: 700;
    font-size: 1.5rem;
}

.logo {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: #f8f9fa;
    color: #007bff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: 0.3s;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #545b62;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.page-header p {
    font-size: 1.1rem;
    color: #666;
}

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

.featured-books h2,
.categories-preview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.book-card {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

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

.book-image {
    width: 80px;
    height: 120px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.book-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.book-author {
    color: #666;
    font-style: italic;
    margin-bottom: 0.5rem;
}

.book-category {
    display: inline-block;
    background: #e9ecef;
    color: #495057;
    padding: 4px 8px;
    border-radius: 15px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.book-description {
    color: #666;
    line-height: 1.5;
}

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

.search-box,
.filter-box {
    flex: 1;
    min-width: 200px;
}

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

.search-box input:focus,
.filter-box select:focus {
    outline: none;
    border-color: #007bff;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.category-card:hover {
    transform: translateY(-3px);
}

.category-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.category-count {
    color: #666;
    font-size: 0.9rem;
}

/* Book Detail */
.book-detail {
    padding: 60px 0;
}

.book-detail-content {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.book-detail-image {
    width: 200px;
    height: 300px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.book-detail-info h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.book-detail-author {
    font-size: 1.2rem;
    color: #666;
    font-style: italic;
    margin-bottom: 1rem;
}

.book-detail-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.meta-item {
    background: #f8f9fa;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9rem;
}

.book-sections {
    display: grid;
    gap: 3rem;
}

.book-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #333;
}

.book-section p,
.book-section li {
    color: #666;
    line-height: 1.6;
}

.book-section ul {
    list-style-position: inside;
    margin-left: 1rem;
}

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

.book-link {
    padding: 12px 24px;
    background: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.book-link:hover {
    background: #218838;
}

.third-party-notice {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 5px;
    padding: 1rem;
    margin-bottom: 2rem;
}

.third-party-notice p {
    margin: 0;
    color: #856404;
}

/* Contact Form */
.contact-content {
    padding: 60px 0;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

.form-message {
    padding: 1rem;
    border-radius: 5px;
    margin-top: 1rem;
}

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

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

.info-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.info-item p,
.info-item a {
    color: #666;
    text-decoration: none;
}

.info-item a:hover {
    color: #007bff;
}

/* Legal Content */
.legal-content,
.about-content {
    padding: 60px 0;
}

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

.content-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #333;
}

.content-section p,
.content-section li {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.content-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 3rem 0;
    color: #666;
}

.book-not-found {
    padding: 100px 0;
    text-align: center;
}

.not-found-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.not-found-content p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: #333;
    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 h3 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p,
.footer-section li {
    color: #ccc;
    line-height: 1.6;
}

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

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

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

.footer-section a:hover {
    color: #007bff;
}

.footer-bottom {
    border-top: 1px solid #555;
    padding-top: 20px;
    text-align: center;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

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

    .book-detail-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .directory-filters {
        flex-direction: column;
    }

    .book-links {
        justify-content: center;
    }

    .cookie-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .book-card {
        padding: 1rem;
    }

    .category-card {
        padding: 1.5rem;
    }
}

/* RTL Support */
[dir="rtl"] {
    text-align: right;
}

[dir="rtl"] .nav-container {
    flex-direction: row-reverse;
}

[dir="rtl"] .nav-logo {
    flex-direction: row-reverse;
}

[dir="rtl"] .logo {
    margin-right: 0;
    margin-left: 10px;
}

[dir="rtl"] .book-detail-content {
    grid-template-columns: 1fr 200px;
}

[dir="rtl"] .contact-grid {
    direction: rtl;
}

[dir="rtl"] .footer-content {
    direction: rtl;
}