body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #212121;
    color: aliceblue;
  }
  
  #toggleSidebar {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1100;
    padding: 10px;
    font-size: 25px;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
  }
  
  
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 200px;
    height: 100%;
    background-color: #212121;
    color: white;
    padding-top: 50px;
    z-index: 1000;
    transition: transform 0.3s ease;
  }
  
  .sidebar.hidden {
    transform: translateX(-100%);
  }
  
  .sidebar a {
    display: block;
    color: white;
    padding: 12px;
    text-decoration: none;
  }
  
  .sidebar a:hover {
    background-color: #575757;
  }
  
  .main {
    padding: 20px;
  }
  
  header {
    background-color: #212121;
    color: white;
    padding: 20px;
    text-align: center;
  }
  
  section {
    margin-top: 20px;
  }
  
  footer {
    background-color: #111;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 40px;
  }