:root {
    --text: #111;
    --muted: #666;
    --bg: #fff;
    --max-width: 720px;
  }
  
  * {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
  }
  
  a {
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px solid #ddd;
  }
  
  a:hover {
    border-color: var(--text);
  }
  
  .site-header {
    border-bottom: 1px solid #eee;
  }
  
  .nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    font-weight: 600;
  }
  
  .nav-links {
    list-style: none;
    display: flex;
    gap: 1rem;
    padding: 0;
    margin: 0;
  }
  
  .container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 1rem;
  }
  
  .hero {
    text-align: center;
    margin-bottom: 4rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
  }
  
  .tagline {
    color: var(--muted);
  }
  
  .pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
  }
  
  .projects ul {
    padding-left: 1rem;
  }
  
  .simple-section {
    margin: 4rem 0;
  }
  
  .site-footer {
    border-top: 1px solid #eee;
    text-align: center;
    padding: 2rem 1rem;
    color: var(--muted);
  }