body {
      background-color: #2c3e50;
      color: #ecf0f1;
      font-family: Arial, sans-serif;
      line-height: 1.7;
      margin: 0;
      padding: 0;
    }
    .container {
      background-color: #34495e;
      max-width: 900px;
      margin: 40px auto;
      padding: 40px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.4);
      border-radius: 12px;
    }
    h1 {
      color: #1abc9c;
      text-align: center;
      margin-bottom: 40px;
    }
    h2 {
      color: #1abc9c;
      margin-top: 30px;
    }
    .paragraph {
      background-color: #1f2d3d;
      padding: 20px;
      border-radius: 8px;
      margin-bottom: 20px;
    }
    .meta {
      font-size: 0.9em;
      color: #bdc3c7;
      text-align: center;
      margin-top: -30px;
      margin-bottom: 40px;
    }
    ul {
      margin: 0;
      padding-left: 20px;
    }
    ul li {
      margin-bottom: 8px;
    }