.hidden{
    display: none;
}
.case {
    width: 50px;
    height: 50px;
    background-color: #ddd;
    border: none;
    border-radius: 10px;
    font-size: 20px;
    font-weight: bold;
    margin: 5px;
    cursor: pointer;
}
.ok{
    background-color: green;
}
.wrong{
    background-color: red;
}
body {
    margin: 0;
    font-family: Arial, sans-serif;
}

header, footer {
    background-color: #f0f0f0;
    padding: 15px;
    text-align: center;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    justify-content: center;
    padding: 10px;
    margin: 0;
    background-color: #ddd;
}

nav a {
    text-decoration: none;
    color: black;
    font-weight: bold;
}

main {
    padding: 20px;
}

/* --- Galerie de photos --- */
.galerie {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.galerie img {
    width: 250px;
    height: 160px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    transition: transform 0.3s;
}

.galerie img:hover {
    transform: scale(1.05);
}