body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0f172a;
    color: #e5e7eb;
  }
  
  .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
  }
  
  h1, h2, h3 {
    color: #f9fafb;
  }
  
  .subtitle {
    color: #9ca3af;
    margin-bottom: 40px;
  }
  
  .card {
    border: 1px solid #1f2933;
    border-radius: 12px;
    padding: 20px;
    background: #020617;
  }
  
  a {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 600;
  }
  
  footer {
    margin-top: 60px;
    font-size: 13px;
    color: #6b7280;
  }