body {
    padding: 0;
    margin: 0;
  }
  

  main {
    max-width: 960px;
    margin: 0 auto;
    padding: 1rem;
  }
  

  header,
  footer {
    text-align: center;
  }
  
  footer {
    font-size: 0.875rem;
    color: #6b7280;
    background-color: #f3f4f6;
  }

  nav ul {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
  }
  
  nav a {
    font-weight: 500;
    transition: color 0.3s ease;
  }
  
  nav a:hover {
    color: #2563eb;
  }