body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f8fb;
    color: #333;
  }

  /* Header */
  .header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background-color: #003366;
    color: #ffffff;
    height:50px;
  }

  .header img {
    width: 100px;
    height: auto;
    margin-right: 70px;
  }

  .header h1 {
    font-size: 1.5rem;
    margin: 0;
  }

  @media (max-width: 768px) {
    .header img {
      width: 60px;
    }

    .header h1 {
      font-size: 1.2rem;
    }
  }

  /* Footer */
  footer {
    background-color: #003366;
    color: #fff;
    padding: 10px 0;
    text-align: center;
  }

  /* Navigation Menu */
  .nav-container {
    background-color: #003366;
    padding: 10px;
  }

  .nav-menu {
    display: flex;
    justify-content: center;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .nav-menu li {
    margin: 0 15px;
  }

  .nav-menu a {
    color: #ffcc00;
    text-decoration: none;
    font-weight: bold;
    padding: 8px 15px;
    border-radius: 5px;
  }

  .nav-menu a:hover {
    background-color: #002244;
    color: #ffffff;
  }

  /* Top and Bottom Ad Banners */
  .top-ad-container,
  .bottom-ad-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    background-color: #ffcc00;
    overflow: hidden;
    position: relative;
  }

  .top-ad-container {
    height: 250px;
  }

  .bottom-ad-container {
    height: 100px;
  }

  .top-ad-banner,
  .bottom-ad-banner {
    background-color: #ffffff00;
    color: #003366;
    font-weight: bold;
    text-align: center;
    border-radius: 10px;
    margin: 5px;
    height: 100%;
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
  }