:root {
    --surface: #ffffff; --plane: #f6f5f2; --ink: #14140f; --ink-2: #4a493f;
    --ink-muted: #85836f; --border: rgba(20,20,15,0.11); --brand: #0d3d34; --accent: #1a8f6b;
  }
  * { box-sizing: border-box; }
  body { font-family: -apple-system, "Segoe UI", Arial, sans-serif; margin: 0; color: var(--ink); line-height: 1.7; background: var(--surface); }
  nav { border-bottom: 1px solid var(--border); padding: 16px 32px; }
  .wordmark { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; color: var(--ink); text-decoration: none; }
  .wordmark .mark { width: 34px; height: 34px; background: var(--brand); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
  @media (max-width: 480px) { .wordmark .wordmark-text { display: none; } }
  .wordmark .suffix { color: var(--ink-muted); font-weight: 500; }
  main { max-width: 720px; margin: 0 auto; padding: 60px 32px 100px; }
  h1 { font-size: 32px; letter-spacing: -0.02em; margin-bottom: 6px; }
  .updated { color: var(--ink-muted); font-size: 13px; margin-bottom: 40px; }
  h2 { font-size: 19px; margin-top: 40px; margin-bottom: 12px; }
  p, li { color: var(--ink-2); font-size: 15px; }
  a { color: var(--brand); }
  footer { border-top: 1px solid var(--border); padding: 30px 32px; text-align: center; color: var(--ink-muted); font-size: 13px; }