/* Global reset & font */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body {
    font-family: 'Inter', sans-serif;
    background-color: #f9f9f9;
    color: #222;
    line-height: 1.6;
  }
  
  /* Header */
  header {
    background-color: #1e293b;
    padding: 1.2rem 0;
    color: white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  }
  header .container {
    max-width: 1100px;
    margin: auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  header h1 {
    font-size: 1.8rem;
  }
  header nav a {
    color: white;
    margin-left: 1.5rem;
    text-decoration: none;
    font-weight: 600;
  }
  header nav a:hover {
    text-decoration: underline;
  }
  
  /* Main card layout */
  main {
    max-width: 800px;
    margin: 3rem auto;
    padding: 0 1.5rem;
  }
  .card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.07);
  }
  .card h2 {
    margin-bottom: 1rem;
    font-size: 1.75rem;
    color: #111827;
  }
  .card h3 {
    margin-top: 2rem;
    font-size: 1.3rem;
    color: #374151;
  }
  .card p, .card li {
    margin-bottom: 1rem;
  }
  .card ul {
    padding-left: 1.25rem;
  }
  
  /* Footer */
  footer {
    text-align: center;
    padding: 1.5rem 0;
    background-color: #1e293b;
    color: white;
    margin-top: 3rem;
    font-size: 0.9rem;
  }