body {
      font-family: Arial, sans-serif;
      background: #f0f0f0;
      text-align: center;
      padding: 40px;
    }
    .card {
      background: white;
      padding: 30px;
      border-radius: 10px;
      max-width: 500px;
      margin: auto;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
    h1 {
      color: #2c3e50;
    }
    p {
      font-size: 18px;
      margin: 10px 0;
    }
    .highlight {
      font-weight: bold;
      color: #2980b9;
    }