:root {
    --primary-color: #0056b3;
    --secondary-color: #f8f9fa;
    --text-color: #333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background-color: #f4f7f6;
    color: var(--text-color);
}

.header {
    background: var(--primary-color);
    color: white;
    padding: 2rem;
    text-align: center;
}

.search-container {
    margin: -25px auto 20px;
    max-width: 600px;
    padding: 0 15px;
}

.search-container input {
    width: 100%;
    padding: 15px;
    border-radius: 30px;
    border: 1px solid #ddd;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    font-size: 16px;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

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

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

.book-card img {
    max-width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 5px;
}

.book-card h3 {
    margin: 10px 0 5px;
    font-size: 18px;
    color: var(--primary-color);
}

.btn-view {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 10px;
}