<style>
    body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: #f2f6fc;
      color: #333;
    }

    /* Header styles */
    .header-container {
      background: linear-gradient(135deg, #4f91f7 0%, #1c66d2 100%);
      padding: 40px 15px;
      text-align: center;
      color: #fff;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    .header-container img {
      width: 120px;
      max-width: 100%;
      margin-bottom: 15px;
      border-radius: 10px;
      border: 2px solid #fff;
    }

    .header-container h1 {
      font-size: 2.2rem;
      font-weight: bold;
      margin-bottom: 20px;
      text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    }

    /* Navbar styles */
    .navbar {
      background: #ffffff;
      box-shadow: 0 2px 6px rgba(0,0,0,0.1);
      border-radius: 8px;
      margin: -20px auto 20px;
      max-width: 95%;
    }

    .navbar-nav .nav-link {
      font-weight: 500;
      color: #333;
      transition: all 0.3s;
    }
    .navbar-nav .nav-link:hover {
      color: #4f91f7;
    }

    .dropdown-menu {
      min-width: 250px;
      border-radius: 8px;
      padding: 15px;
      background: #f7f9fc;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    .dropdown-header {
      font-weight: bold;
      font-size: 1.05rem;
      color: #1c66d2;
    }

    .divider {
      border-top: 1px solid #ddd;
      margin: 5px 0;
    }

    .mega-dropdown img {
      max-width: 100%;
      border-radius: 8px;
      margin-top: 10px;
    }

    .dropdown-item:hover {
      background: #e0f0ff;
      color: #1c66d2;
    }

    /* Content sections */
    .content-section {
      max-width: 900px;
      margin: 40px auto;
      padding: 30px;
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    }

    .content-section h2 {
      color: #4f91f7;
      margin-bottom: 15px;
      font-weight: bold;
    }

    .content-section h3 {
      color: #1c66d2;
      margin-top: 20px;
    }

    .content-section p, .content-section ul {
      line-height: 1.6;
      margin-bottom: 10px;
    }

    .content-section ul {
      padding-left: 20px;
    }

    .content-section li {
      margin-bottom: 6px;
    }
  </style>