/* Thème sombre global */
body {
    font-family: Arial, sans-serif;
    background: #292929;
    color: #e0e0e0;
    margin: 0;
    padding: 0 20px;
}
h1, h2 {
    color: #f1f1f1;
}
.btn, .btn-retour {
    display: inline-block;
    margin-bottom: 20px;
    padding: 10px 22px;
    background: #393939;
    color: #e0e0e0;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.2s, color 0.2s;
    border: 1px solid #444;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: 0 2px 8px #0002;
}
.btn:hover, .btn-retour:hover {
    background: #444;
    color: #fff;
}
.btn-retour {
    margin-top: 30px;
    margin-bottom: 30px;
}
.categories {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}
.categorie {
    flex: 1;
    margin: 0 10px;
    padding: 20px;
    border: 1px solid #444;
    border-radius: 8px;
    background: #232323;
    min-height: 150px;
}
.linktree {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    margin-top: 40px;
}
.linktree-link {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #393939;
    color: #e0e0e0;
    padding: 12px 28px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    border: 1px solid #444;
    transition: background 0.2s, color 0.2s;
}
.linktree-link:hover {
    background: #444;
    color: #fff;
}