#muteBtn {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

#muteBtn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}