body {
        font-family: Arial, sans-serif;
        text-align: center;
        background-color: #f4f4f9;
        color: #333;
        margin: 0;
        padding: 20px;
      }
      
      h1 {
        color: #4CAF50;
      }
      
      .container {
        max-width: 600px;
        margin: 20px auto;
        padding: 20px;
        background: #fff;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        border-radius: 10px;
      }
      
      p {
        font-size: 18px;
        margin: 15px 0;
      }
      
      button {
        background-color: #4CAF50;
        color: white;
        border: none;
        padding: 10px 20px;
        font-size: 16px;
        cursor: pointer;
        border-radius: 5px;
        margin-top: 20px;
      }
      
      button:hover {
        background-color: #45a049;
      }
      
      .copy-btn {
        background-color: #007BFF;
        margin-left: 10px;
      }
      
      .copy-btn:hover {
        background-color: #0056b3;
      }
      
      .hidden {
        display: none;
      }
      
      .random-container {
        margin-top: 30px;
        text-align: left;
      }
      
      .random-container p {
        margin: 10px 0;
      }
      
      .random-container button {
        margin-top: 5px;
      }
      
      .toast {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        background-color: #ed0707;
        color: white;
        padding: 10px 20px;
        border-radius: 5px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
        z-index: 1000;
        font-size: 14px;
      }