/* Global Styles */
:root {
    --primary-color: #FF6B35; /* Orange */
    --secondary-color: #1B365D; /* Dark Navy Blue */
    --danger-color: #f44336;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --border-color: #ddd;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-gray);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Navigation */
.navbar {
     /* Dark Navy Blue */
    background-color:  #1B365D;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    /* Smooth transition for scroll hide/show */
    transition: transform 0.3s ease-in-out;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-link.active {
    color: var(--primary-color);
    font-weight: bold;
}

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: white;
    min-width: 160px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1;
    border-radius: 4px;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}

.dropdown-content a:hover {
    background-color: var(--light-gray);
}

/* Show dropdown content when active class is added */
.dropdown-active .dropdown-content {
    display: block;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

.btn-primary:hover {
    background-color: #45a049;
}

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

.btn-secondary:hover {
    background-color: #1976D2;
}

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

.btn-danger:hover {
    background-color: #d32f2f;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

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

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

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

textarea.form-control {
    resize: vertical;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
    padding: 2rem;
}

.auth-box {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
}

.auth-box h2 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.info-text {
    color: #666;
    margin-bottom: 2rem;
}

.auth-links {
    margin-top: 1rem;
    text-align: center;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Book Cards */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
}

.book-card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s;
}

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

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

.book-info {
    padding: 1rem;
}

.book-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.book-info p {
    color: #666;
    margin-bottom: 0.25rem;
}

.book-info .price {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.book-info .status {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
}

.book-info .status.pending {
    background-color: #fff3e0;
    color: #f57c00;
}

.book-info .status.approved {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.book-info .status.rejected {
    background-color: #ffebee;
    color: #c62828;
}

.book-actions {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
}

.no-books {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Pagination Styles */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 2rem 0;
    padding: 1rem;
}

.pagination-btn {
    background-color: white;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(255, 107, 53, 0.3);
}

.pagination-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 600;
}

.pagination-btn:disabled {
    background-color: #f5f5f5;
    color: #999;
    border-color: #e0e0e0;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.pagination-ellipsis {
    padding: 0.75rem 0.5rem;
    color: #666;
    font-weight: 500;
}

/* Mobile Pagination */
@media (max-width: 768px) {
    .pagination {
        gap: 0.25rem;
        margin: 1.5rem 0;
        padding: 0.5rem;
        flex-wrap: wrap;
    }
    
    .pagination-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
        min-width: 40px;
        height: 40px;
    }
    
    .pagination-ellipsis {
        padding: 0.5rem 0.25rem;
        font-size: 0.9rem;
    }
}

/* Order Cards */
.order-card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 1rem;
    overflow: hidden;
}

.order-header {
    background-color: var(--light-gray);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.order-content {
    padding: 1rem;
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 1rem;
}

.status-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-pending {
    background-color: #FFF3CD;
    color: #856404;
}

.status-approved {
    background-color: #D4EDDA;
    color: #155724;
}

.status-rejected {
    background-color: #F8D7DA;
    color: #721C24;
}

.status-completed {
    background-color: #D4EDDA;
    color: #155724;
}

.status-cancelled {
    background-color: #F8D7DA;
    color: #721C24;
}

/* Profile */
.profile-container {
    max-width: 800px;
    margin: 0 auto;
}

.profile-section {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.profile-section h2 {
    margin-bottom: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background-color: var(--light-gray);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.stat-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading-spinner.hidden {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Toast Messages */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
}

.toast {
    background-color: white;
    padding: 1rem;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease-out;
}

.toast.success {
    border-left: 4px solid var(--primary-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

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

/* Footer */
.footer {
    background-color: white;
    padding: 2rem 0;
    margin-top: 2rem;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

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

.footer-section a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 1rem;
    }

    .nav-links {
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .container {
        padding: 1rem;
    }

    .auth-box {
        padding: 1.5rem;
    }

    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
        padding: 1rem;
    }

    .search-filters {
        padding: 1rem;
    }

    .search-container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .filters {
        flex-direction: column;
        gap: 0.5rem;
    }

    .filters select {
        min-width: auto;
        width: 100%;
    }

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

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 0;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 0.5rem;
}

.search-container input {
    flex: 1;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-container button {
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-container button:hover {
    background-color: #45a049;
}

/* Categories Section */
.categories {
    margin: 3rem 0;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.category-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    cursor: pointer;
    transition: transform 0.3s;
}

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

.category-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.category-card h3 {
    margin-bottom: 0.5rem;
}

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

/* Image Upload */
.image-upload-container {
    position: relative;
    margin-top: 0.5rem;
}

.image-preview {
    margin-top: 1rem;
    text-align: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 200px;
    border-radius: 4px;
}

.image-preview button {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.25rem;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.9);
}

.image-preview button i {
    font-size: 0.8rem;
}

/* Book Images Upload Section */
.book-image-upload {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.image-upload-item {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1rem;
    background-color: #f9f9f9;
}

.image-upload-item label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--secondary-color);
}

.image-upload-item .image-preview {
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f0f0;
    border-radius: 4px;
    margin-top: 0.5rem;
}

.image-upload-item .image-preview img {
    max-width: 100%;
    max-height: 150px;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .book-image-upload {
        grid-template-columns: 1fr;
    }
}

/* Sell Form */
.sell-container {
    max-width: 800px;
    margin: 2rem auto;
}

.sell-form {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.sell-form h1 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

/* Book Details */
.book-details-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    margin: 2rem auto;
    max-width: 1200px;
    padding: 1rem;
}

.book-image {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

.book-info {
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.book-info h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.book-info .author {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.book-info .price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 1rem 0;
}

.book-info .description {
    margin: 1rem 0;
    line-height: 1.6;
}

.seller-info {
    margin: 1rem 0;
    padding: 1rem;
    background-color: var(--bg-light);
    border-radius: 4px;
}

@media (max-width: 768px) {
    .book-details-grid {
        grid-template-columns: 1fr;
    }
    
    .book-image {
        height: 300px;
    }
}

/* Featured Books Section */
.featured-books {
    margin: 2rem 0;
}

.featured-books h2 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.featured-books-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.featured-book-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s ease-in-out;
    cursor: pointer;
}

.featured-book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.featured-book-card .book-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
}

.featured-book-card .book-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.featured-book-card .book-info {
    padding: 0.75rem;
}

.featured-book-card .book-title {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--primary-color);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-book-card .book-author {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.featured-book-card .book-price {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .featured-books-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

/* Admin Dashboard Styles */
.stats-section {
    margin: 2rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.stat-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.stat-card p {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.table-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    overflow-x: auto;
    margin-top: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--light-gray);
    font-weight: 600;
}

tr:hover {
    background-color: var(--light-gray);
}

.pending-sellers, .pending-books {
    margin: 2rem 0;
}

.pending-sellers h2, .pending-books h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Cart Styles */
.cart-items {
    margin: 2rem 0;
}

.cart-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.cart-item-image {
    width: 100px;
    height: 150px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 1rem;
}

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

.cart-item-details h3 {
    margin: 0 0 0.5rem 0;
}

.cart-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: var(--light-gray);
    border-radius: 8px;
    margin-top: 2rem;
}

.total {
    font-size: 1.2rem;
    font-weight: bold;
}

/* Admin Dashboard Styles */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.stat-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.stat-card h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-color);
}

.stat-card p {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
}

.pending-sellers,
.pending-books {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.pending-sellers h2,
.pending-books h2 {
    margin: 0 0 1rem 0;
    color: var(--text-color);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--light-gray);
    font-weight: 600;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

/* Search Styles */
.search-section {
    margin: 2rem 0;
}

.search-filters {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.search-container {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.search-container input {
    flex: 1;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-container button {
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-container button:hover {
    background-color: #45a049;
}

.search-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.search-form input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

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

.filters select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    min-width: 150px;
}

/* Header Styles */
.header {
    background-color: var(--secondary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    transition: transform 0.3s ease-in-out;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.logo {
    text-align: center;
    padding: 0.5rem 0;
}

.logo a {
    font-size: 2rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
    display: inline-block;
}

.header-right {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

/* Button Styles */
.btn-outline {
    border: 2px solid white;
    color: white;
    background: transparent;
    transition: all 0.3s ease;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
}

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

.header .btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    white-space: nowrap;
}

.header .btn-primary:hover {
    background-color: #e85d29;
}

/* Dropdown Styles */
.header .dropdown-btn {
    color: white;
    background: none;
    border: 2px solid white;
    border-radius: 6px;
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    white-space: nowrap;
}

.header .dropdown-content {
    background-color: white;
    min-width: 180px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-radius: 6px;
    overflow: hidden;
    margin-top: 5px;
    z-index: 1001;
}

.header .dropdown-content a {
    color: var(--secondary-color);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    transition: background-color 0.2s;
}

.header .dropdown-content a:hover {
    background-color: #f5f5f5;
}

.header .dropdown-active .dropdown-content {
    display: block;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .header {
        padding: 0.8rem 0;
    }
    
    .header-content {
        padding: 0 1rem;
        gap: 1.2rem;
    }
    
    .logo {
        padding: 0.8rem 0;
    }
    
    .header-right {
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
        padding: 0.5rem 0;
    }
    
    .btn-outline, .btn-primary, .dropdown-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1rem 0;
    }
    
    .header-content {
        gap: 1.5rem;
    }
    
    .logo {
        padding: 1rem 0;
    }
    
    .header-right {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
        padding: 0.8rem 0;
    }
    
    .header-right a, .header-right .dropdown {
        width: auto;
    }
    
    .header-right .dropdown-btn {
        width: auto;
    }
    
    .btn-outline, .btn-primary, .dropdown-btn {
        padding: 0.4rem 0.7rem;
        font-size: 0.85rem;
    }
    
    /* Adjust dropdown position for mobile */
    .header .dropdown-content {
        right: 0;
        left: auto;
    }
}

/* Banner Section */
.banner {
    display: flex;
    align-items: center;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 3rem;
    min-height: 400px;
}

.banner-content {
    flex: 1;
    padding: 3rem;
}

.banner-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.banner-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.banner-image {
    flex: 1;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.banner-image img {
    max-width: 100%;
    max-height: 350px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Category Slider */
.category-slider {
    display: flex;
    overflow-x: auto;
    gap: 1.5rem;
    padding: 1rem 0;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--light-gray);
}

.category-slider::-webkit-scrollbar {
    height: 6px;
}

.category-slider::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: 10px;
}

.category-slider::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 10px;
}

.category-card {
    min-width: 200px;
    padding: 1.5rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    border-left: 4px solid var(--primary-color);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* Featured Books Section */
.featured-books {
    margin-top: 3rem;
}

.featured-books h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.featured-books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.featured-book-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.featured-book-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.featured-book-card .book-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.featured-book-card .book-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.featured-book-card .book-info {
    padding: 1rem;
}

.featured-book-card .book-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.featured-book-card .book-author {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.featured-book-card .book-price {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* Media queries for responsiveness */
@media (max-width: 768px) {
    .banner {
        flex-direction: column;
    }
    
    .banner-content, .banner-image {
        padding: 2rem;
        width: 100%;
    }
    
    .category-slider {
        overflow-x: auto;
    }
    
    .featured-books-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0;
        width: 100vw;
    }
    .header-content {
        padding: 0;
        margin: 0;
        width: 100vw;
        max-width: 100vw;
    }
    .nav-links {
        width: 100vw !important;
        justify-content: center;
        gap: 1rem;
    }
    .nav-links {
        gap: 0.5rem;
    }
    .featured-books-grid {
        grid-template-columns: 1fr;
    }
}

/* How It Works Section */
.how-it-works {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.how-it-works h2 {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.steps-container {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 1.5rem 1rem;
    background-color: var(--light-gray);
    border-radius: 8px;
    position: relative;
}

.step-card:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: bold;
}

.step-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    line-height: 40px;
    font-weight: bold;
    margin-bottom: 1rem;
}

.step-title {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.step-description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

.step-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .steps-container {
        flex-direction: column;
    }
    
    .step-card:not(:last-child)::after {
        content: "↓";
        right: 50%;
        top: auto;
        bottom: -15px;
        transform: translateX(50%);
    }
}