body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: #f5f5f5;
    color: #333;
    text-align: center;
    padding: 2em;
  }
  button {
    background-color: #6200EE;
    color: white;
    border: none;
    padding: 1em 2em;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  }