input, textarea, button {
      display: block;
      margin: 10px auto;
      padding: 10px;
      width: 80%;
      max-width: 400px;
      border: 2px ridge #666;
      background-color: #111;
      color: yellow;
      font-family: 'Times New Roman', serif;
      font-size: 16px;
    }
    
    /* Mobile adjustments - full width inputs, preserved desktop unchanged */
    @media (max-width: 600px) {
      input, textarea, button {
        width: 94%;
        max-width: none;
        margin: 8px auto;
        padding: 12px;
        font-size: 18px;
      }
      textarea { min-height: 140px; }
      button { display: block; width: 94%; }
    }