* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    display: flex;
  }
  
  #navbar {
    position: fixed;
    width: 250px;
    height: 100%;
    border-right: 1px solid #ccc;
    background-color: #f8f8f8;
  }
  
  #navbar header {
    padding: 20px;
    font-size: 1.5rem;
    font-weight: bold;
    text-align: center;
    border-bottom: 1px solid #ccc;
    color: #2c3e50;
  }
  
  #navbar .nav-link {
    display: block;
    padding: 15px 20px;
    text-decoration: none;
    color: #555;
    border-bottom: 1px solid #e0e0e0;
    transition: background-color 0.2s;
  }
  
  #navbar .nav-link:hover {
    background-color: #e0e0e0;
    color: #2c3e50;
  }
  
  #main-doc {
    margin-left: 250px;
    padding: 30px;
    width: calc(100% - 250px);
  }
  
  .main-section {
    margin-bottom: 40px;
  }
  
  .main-section header {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #2c3e50;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
  }
  
  .main-section p {
    margin-bottom: 15px;
  }
  
  .main-section code {
    display: block;
    background-color: #f4f4f4;
    padding: 15px;
    margin: 15px 0;
    border-radius: 5px;
    font-family: Consolas, Monaco, 'Andale Mono', monospace;
    white-space: pre;
    line-height: 1.4;
    color: #333;
    border-left: 4px solid #3498db;
  }
  
  .main-section ul, .main-section ol {
    margin: 15px 0 15px 20px;
  }
  
  .main-section li {
    margin-bottom: 10px;
  }
  
  /* Media query para dispositivos móviles */
  @media (max-width: 768px) {
    body {
      flex-direction: column;
    }
    
    #navbar {
      position: relative;
      width: 100%;
      height: auto;
      border-right: none;
      border-bottom: 1px solid #ccc;
    }
    
    #main-doc {
      margin-left: 0;
      width: 100%;
      padding: 20px;
    }
  }