/* scroll-to-top.css */
#scrollToTopBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    border: none;
    border-radius: 50%;
    background-color: #007bff; /* Bleu */
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease, transform 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

#scrollToTopBtn.visible {
    opacity: 1;
    visibility: visible;
}

#scrollToTopBtn:hover {
    background-color: #0056b3; /* Bleu plus foncé */
    transform: scale(1.1);
}