body {
    margin: 0;
    font-family: Arial, sans-serif;
  }
  
  .panel {
    position: fixed;
    top: 0;
    right: -360px;
    width: 300px;
    height: 100%;
    background: #f1f1f1;
    transition: all 0.3s ease;
    padding: 20px;
    box-shadow: -2px 0 5px rgba(0, 0, 0, 0.2);
  }
  
  .panel.active {
    right: 0;
  }
  
  .toggle-btn {
    padding: 10px 20px;
    background: #4caf50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin: 20px;
    font-size: 16px;
  }
  
  .toggle-btn:hover {
    background: #45a049;
  }
  
  .close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 5px 10px;
    background: #ff4444;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }
  
  .close-btn:hover {
    background: #ff0000;
  }
  
  .menu-item {
    padding: 15px;
    margin: 5px 0;
    background: white;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
  }
  
  .menu-item:hover {
    background: #e0e0e0;
  }
  
  .content {
    padding: 20px;
  }