body {
      font-family: Arial, sans-serif;
      background: #f5f5f5;
      padding: 20px;
    }
    .container {
      max-width: 500px;
      background: #fff;
      padding: 20px;
      border-radius: 8px;
      margin: auto;
      box-shadow: 0 0 10px rgba(0,0,0,0.1);
    }
    h2 {
      text-align: center;
    }
    .group {
      margin-bottom: 15px;
    }
    label {
      display: inline-block;
	  width: 200px;
      margin-bottom: 5px;	
      font-weight: bold;
    }
    input {
      width: 50%;
      padding: 5px;
      box-sizing: border-box;
    }
    button {
      padding: 10px 20px;
      background: #007bff;
      color: #fff;
      border: none;
      cursor: pointer;
      margin-top: 10px;
    }
    button:disabled {
      background: #ccc;
    }
    .results {
      margin-top: 20px;
      background: #eef;
      padding: 10px;
      border-radius: 5px;
    }
    .results p {
      margin: 5px 0;
    }