/* Style de la flèche */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #333;
    color: #fff;
    padding: 10px 15px;
    border-radius: 50%;
    text-align: center;
    display: none;
    font-size: 18px;
    text-decoration: none;
    z-index: 1000;
}

/* Changement de couleur au survol */
.scroll-to-top:hover {
    background-color: #555;
}