/* General styles */
body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
  }
  
  /* Header */
  .header {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: #3ac7cf;
    color: white;
    z-index: 1000;
  }
  
  .header .logo h1 {
    margin: 0;
    font-size: 24px;
  }
  
  nav a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
    font-size: 18px;
  }
  
  nav a:hover {
    text-decoration: underline;
  }
  
  /* Mobile navigation */
  .mobile-nav {
    display: none;
  }
  
  .dropdown-content {
    display: none;
    position: absolute;
    top: 50px;
    right: 20px;
    background-color: #3ac7cf;
    padding: 10px;
  }
  
  .dropdown-content a {
    display: block;
    margin-bottom: 10px;
    color: white;
  }
  
  .dropdown-content a:hover {
    text-decoration: underline;
  }
  
  /* Sticky header */
  .sticky {
    position: sticky;
    top: 0;
  }
  
  /* Image gallery */
  .gallery {
    display: flex;
    flex-direction: column;
    width: 100%;
  }
  
  .gallery img {
    width: 100%;
    height: auto;
  }
  
  /* Footer */
  footer {
    text-align: center;
    padding: 10px 0;
    background-color: #3ac7cf;
    color: white;
    position: fixed;
    width: 100%;
    bottom: 0;
  }
  
  /* Responsive */
  @media screen and (max-width: 768px) {
    .desktop-nav {
      display: none;
    }
    
    .mobile-nav {
      display: block;
    }
  }