/* Basic reset and typography */
body, h1, h2, h3, p, ul, li {
    margin: 0;
    padding: 0;
    list-style: none;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }
  
  body {
    background-color: #f0f0f0;
    color: #000;
    transition: background-color 0.3s, color 0.3s;
  }
  
  .dark-mode {
    background-color: #181818;
    color: #fff;
  }
  
  .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  header, footer, section {
    margin-bottom: 40px;
    padding: 20px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: background 0.3s, box-shadow 0.3s;
  }
  
  header {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  header h1 {
    font-size: 2rem;
  }
  
  button {
    padding: 10px 20px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
  }
  
  button:hover {
    background: #0056b3;
    transform: scale(1.05);
  }
  
  pre {
    background: rgba(0, 0, 0, 0.1);
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
  }
  
  .dark-mode pre {
    background: rgba(255, 255, 255, 0.1);
  }
  
  footer {
    text-align: center;
  }
  
  a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s;
  }
  
  a:hover {
    color: #0056b3;
  }