body {
      font-family: Arial, sans-serif;
      background: #111;
      color: #fff;
      margin: 0;
      padding: 0;
      text-align: center;
    }

    header {
      background: #57081B;
      padding: 20px;
    }

    header h1 {
      margin: 0;
      font-size: 2em;
    }

    .container {
      padding: 40px 20px;
    }

    .don-button {
      background-color: #0070ba;
      color: white;
      padding: 15px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-size: 1.2em;
      font-weight: bold;
      display: inline-block;
      margin-top: 20px;
      transition: background 0.3s;
    }

    .don-button:hover {
      background-color: #005c9e;
    }

    .message {
      margin-top: 30px;
      font-size: 1em;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.6;
    }