/* Reset and Base Styles */
:root {
    --primary-color: #FF6B35;
    --primary-dark: #e85a2c;
    --secondary-color: #1B3358;
    --secondary-dark: #142744;
    --text-color: #2c3e50;
    --text-light: #666;
    --border-color: #eee;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --header-height: 70px;
}

* {
    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: #f8f9fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header Styles */
.header {
    background: #fff;
    box-shadow: 0 2px 8px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    width: 100%;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--secondary-color);
    font-size: 1.5rem;
    font-weight: 600;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.8rem;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Policy Dropdown */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    text-decoration: none;
}

.dropdown-toggle i {
    font-size: 0.8rem;
    transition: transform 0.2s;
}

.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    box-shadow: 0 4px 12px var(--shadow-color);
    border-radius: 8px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s ease;
    z-index: 1000;
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-color);
    font-size: 0.95rem;
}

.dropdown-content a:hover {
    background: #f8f9fa;
    color: var(--primary-color);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Search Bar */
.search-bar {
    display: flex;
    align-items: center;
    background: #f5f5f5;
    border-radius: 8px;
    padding: 0.5rem;
    width: 300px;
}

.search-bar input {
    border: none;
    background: none;
    padding: 0.25rem 0.5rem;
    width: 100%;
    outline: none;
    font-size: 0.9rem;
}

.search-bar button {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.25rem;
}

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

/* Banner Section */
.banner {
    background: var(--secondary-color);
    color: white;
    padding: 4rem 0;
    text-align: center;
    width: 100%;
}

.banner-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

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

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

/* Featured Books Section */
.featured-books {
    padding: 4rem 0;
    background: #fff;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

/* Books Grid Layout */
.books-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);  /* Show 2 books per row */
    gap: 2rem;
    padding: 0 1rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Book Card */
.book-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow-color);
    overflow: hidden;
    transition: transform 0.2s;
    width: 100%;
    display: flex;
    flex-direction: column;
    height: 100%;
    max-width: none;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.book-image-container {
    position: relative;
    width: 100%;
    padding-top: 140%; /* Aspect ratio for book cover */
    overflow: hidden;
    background-color: #f5f5f5;
}

.book-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-info {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.book-info h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    color: var(--secondary-color);
    line-height: 1.4;
    /* Ensure long titles don't overflow */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-info .author {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.book-info .description {
    color: var(--text-light);
    margin: 0.5rem 0;
    font-size: 0.9rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-price {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: auto;
    margin-bottom: 1rem;
}

.book-actions {
    display: flex;
    gap: 1rem;
    margin-top: auto;
}

.book-actions button {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

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

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

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

.book-actions .btn-secondary:hover {
    background: var(--secondary-dark);
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 4rem 0 2rem;
    margin-top: auto;
}

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

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p {
    line-height: 1.8;
    margin-bottom: 1rem;
    opacity: 0.9;
}

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

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

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-section a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* About Us Footer Section */
.footer-about {
    max-width: 400px;
}

.footer-about p {
    font-size: 0.95rem;
    line-height: 1.6;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .search-bar {
        width: 250px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .search-bar {
        display: none;
    }
    
    .header-content {
        padding: 0 0.5rem;
    }

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

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

    .books-grid {
        grid-template-columns: repeat(2, 1fr); /* Keep 2 columns on tablets */
        gap: 1.5rem;
        padding: 0 0.5rem;
    }

    .book-info {
        padding: 1rem;
    }

    .book-info h3 {
        font-size: 1rem;
    }

    .book-price {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }

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

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

    .footer-about {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .auth-buttons {
        gap: 0.5rem;
        display: flex;
        justify-content: center;
        width: 100%;
    }
    
    .btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
        min-width: 70px;
        text-align: center;
        text-decoration: none;
        display: inline-flex;
        justify-content: center;
        align-items: center;
    }
    
    .logo span {
        display: none;
    }

    .books-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 1rem;
        padding: 0 0.5rem;
    }

    .book-image-container {
        padding-top: 120%; /* Slightly shorter aspect ratio on mobile */
    }
}

/* Cart Icon */
.cart-icon {
    position: relative;
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 1.2rem;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--primary-color);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

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

.btn-login:hover {
    background: var(--secondary-dark);
}

.btn-register {
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* User Menu */
.user-menu {
    position: relative;
}

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    color: var(--secondary-color);
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0.5rem;
    text-decoration: none;
}

.user-menu-btn i {
    font-size: 1.2rem;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    min-width: 200px;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    display: none;
}

.user-menu:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    transition: background-color 0.2s;
}

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

.dropdown-menu hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 0.5rem 0;
}