body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f7f7f7;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 20px;
    text-align: center;
}

header a {
    color: #ecf0f1;
    text-decoration: none;
    font-size: 0.9em;
}

.books {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px;
    flex-wrap: wrap;
}

.book {
    text-align: center;
}

.book img {
    width: 150px;
    height: 220px;
    object-fit: cover;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#content {
    max-width: 800px;
    margin: 20px auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    white-space: pre-line; /* pour garder les retours à la ligne */
}