nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
  }
  
  nav ul li {
    margin-right: 20px;
  }
  
  nav ul li a {
    text-decoration: none;
    color: #333;
  }
  

  
  h2 {
    font-size: 24px;
    color: #333;
    text-align: center;
  }
  
  .document-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    filter: drop-shadow(0px 0px 4px rgba(0, 0, 0, 0.25));
    padding: 20px 0px;
  }
  
  .document-block {
    background-color: #F6F9FF;
    border-radius: 5px;
    padding: 20px;
    width: 300px;
    text-align: center;
  }
  
  .document-block h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
  }