/* Styles pour le bouton de remontée en haut de page */
#scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

#scroll-to-top.visible {
    opacity: 0.7;
    visibility: visible;
}

#scroll-to-top:hover {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.7);
    transform: translateY(-3px);
}

/* Styles responsives pour les appareils mobiles */
@media (max-width: 768px) {
    #scroll-to-top {
        width: 35px;
        height: 35px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    #scroll-to-top {
        width: 30px;
        height: 30px;
        bottom: 15px;
        right: 15px;
    }
}