.container {
      max-width: 800px;
      margin: 30px auto;
      background: #fff;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    h1 {
      color: #004080;
      font-size: 24px;
      margin-bottom: 10px;
    }
    h2 {
      color: #007acc;
      font-size: 20px;
      margin-top: 30px;
      margin-bottom: 10px;
    }
    h3 {
      color: #004080;
    }
    ul {
      padding-left: 20px;
    }
    li {
      margin-bottom: 8px;
    }
    .silabus-btn {
      padding: 10px 20px;
      background-color: #0066cc;
      color: white;
      text-decoration: none;
      border-radius: 5px;
      display: inline-block;
      margin: 20px 0;
    }
    .silabus-btn:hover {
      background-color: #004c99;
    }