body {
      font-family: Arial, sans-serif;
      padding: 40px;
      background: #f7f7f7;
    }
    form {
      max-width: 600px;
      margin: auto;
      background: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 0 10px #ccc;
    }
    input, textarea, select {
      width: 100%;
      padding: 10px;
      margin-top: 10px;
      border: 1px solid #ccc;
      border-radius: 5px;
    }
    button {
      background-color: #4CAF50;
      color: white;
      padding: 12px;
      border: none;
      margin-top: 20px;
      width: 100%;
      border-radius: 5px;
      font-size: 16px;
    }
    .success {
      text-align: center;
      background: #d4edda;
      padding: 20px;
      border-radius: 5px;
      color: #155724;
    }