.voice-bot-button {
    position: fixed;
    width: 100px;
    height: 100px;
    top: 20px;
    left: 20px;
    padding: 10px 16px;
    background-color: hsl(212, 72%, 59%);
    color: white;
    border: none;
    border-radius: 80px;
    cursor: pointer;
    font-weight: bold;
    z-index: 1000; /* stay above other elements */
}