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

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background-color: #f5efe7;
    color: #2c2b28;
    line-height: 1.6;
}

header {
    background: linear-gradient(135deg, #2c3e2f 0%, #1e2a22 100%);
    color: #f5e6c4;
    text-align: center;
    padding: 2rem;
    border-bottom: 5px solid #c49a6c;
}

header h1 {
    font-size: 2.8rem;
    letter-spacing: 2px;
}

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

.livros-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: #fffcf5;
    border-radius: 12px;
    padding: 1.8rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.2s;
    border-left: 8px solid #c49a6c;
}

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

.btn {
    display: inline-block;
    background: #c49a6c;
    color: white;
    padding: 0.6rem 1.2rem;
    text-decoration: none;
    border-radius: 30px;
    margin-top: 1rem;
    transition: background 0.2s;
}

.btn:hover {
    background: #a07850;
}

footer {
    text-align: center;
    padding: 1.5rem;
    background: #2c3e2f;
    color: #f5e6c4;
    margin-top: 3rem;
}