#chat-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #0078ff;
    color: #fff;
    border-radius: 50px;
    padding: 14px 20px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    font-weight: bold;
    z-index: 1000;
  }