.luma-chat-toggle {
    position: fixed;
    background: #FFF;
    display: flex; 
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0 1px 6px rgba(0,0,0,0.06), 0 2px 32px rgba(0,0,0,0.16);
    cursor: pointer;
  }