* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
  }
  
  body {
    background-color: #f4f4f4;
  }
  
  header {
    background-color: #004080;
    color: white;
    padding: 20px 0;
    text-align: center;
  }
  
  nav {
    background-color: #003060;
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 10px 0;
  }
  
  nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
  }
  
  nav a:hover {
    text-decoration: underline;
  }
  
  section {
    padding: 40px 20px;
    max-width: 1000px;
    margin: auto;
    background: white;
    margin-top: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  }
  
  h2 {
    margin-bottom: 20px;
    color: #004080;
  }
  
  .courses li {
    margin-bottom: 10px;
  }
  
  form input, form textarea {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
  }
  
  form button {
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #004080;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  form button:hover {
    background-color: #002d5e;
  }
  
  footer {
    text-align: center;
    padding: 20px;
    background-color: #003060;
    color: white;
    margin-top: 20px;
  }