body {
      font-family: 'Segoe UI', sans-serif;
      background-color: #f4f4f4;
      color: #333;
      margin: 0;
      padding: 0;
    }
    header {
      background-color: #004080;
      color: white;
      padding: 20px;
      text-align: center;
    }
    main {
      max-width: 800px;
      margin: auto;
      background-color: white;
      padding: 40px;
      box-shadow: 0 0 10px rgba(0,0,0,0.1);
      margin-top: 30px;
      margin-bottom: 30px;
    }
    h1 {
      color: #004080;
    }
    p {
      line-height: 1.7;
    }
    footer {
      text-align: center;
      background-color: #eee;
      padding: 20px;
      font-size: 14px;
    }