.header {
    background-color: #697565  ;
    color: #fff;
    padding: 25px; 
    text-align: center;
    font-size: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  }
  
  .nav {
    display: flex;
    justify-content: center;
    gap: 80px;
  }
  
  .navigation-link a {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none; 
    
  }