body {
    margin: 0;
    font-family: "Times New Roman", Times, serif;
    background-color: #ffffff;
    color: #333;
}

header {
    background: linear-gradient(to bottom, #ffffff, #fafafa);
    color: #d4af37;
    text-align: center;
    padding: 30px 20px;
    font-size: 2em;
    letter-spacing: 1px;
    border-bottom: 2px solid #d4af37;

    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

header h1 {
    margin: 0;
    font-weight: normal;
}

.subtitle {
    margin: 5px 0 0;
    font-size: 0.9em;
    color: #666;
    font-style: italic;
}

.nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 15px;
    background: #fafafa;
    border-bottom: 1px solid #d4af37;
}

.nav a {
    text-decoration: none;
    color: #d4af37;
    font-weight: bold;
}

.nav a:hover {
    text-decoration: underline;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px;
}

.book-card {
    border: 1px solid #d4af37;
    border-radius: 10px;
    padding: 15px;
    background: #fffaf0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);

    display: flex;
    flex-direction: column;
}

.book-card h2 {
    margin-top: 0;
    color: #b8962e;
}

.price {
    font-weight: bold;
    color: #d4af37;
    font-size: 1.2em;

    margin-top: auto;
    text-align: left;
}