body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: #f5f5f5;
    padding: 40px;
  }
  
  h1 {
    color: #2b2b2b;
  }
  
  p {
    color: #555;
    font-size: 18px;
  }