.sound-toggle {
    position: absolute;
    bottom: 100px;
    right: 100px;
    width: 50px;
    height: 50px;
    background-color: transparent;
    border: 1px solid #cccccc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: background-color 0.3s ease;
}

.sound-toggle .wave {
    font-size: 18px;
    color: rgba(204, 204, 204, 0.63);
}

.sound-toggle.muted .wave {
    font-size: 18px;
    color: rgba(204, 204, 204, 0.63);
}

/* Masquer le bouton sur mobile */
@media (max-width: 767px) {
    .sound-toggle {
        display: none;
    }
}