.category-banner {
    position: relative;
    height: 300px;
    overflow: hidden;
    margin-bottom: 2rem;
}

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

.category-banner h1 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    font-size: 2.5rem;
}

.category-content {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    padding: 0 2rem;
}

.category-nav {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.category-nav h2 {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #2c3e50;
}

.category-nav ul {
    list-style: none;
}

.category-nav a {
    display: block;
    padding: 0.5rem 0;
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.category-nav a:hover {
    color: #3498db;
}

.featured-books h2 {
    margin-bottom: 1.5rem;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.book-card {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.book-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.book-card h3 {
    margin: 0.5rem 0;
    font-size: 1.2rem;
}

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