:root {
  --bg: #f4f1ea;
  --text: #1c1b18;
  --muted: #6b665c;
  --rule: #1c1b18;
  --border: #d8d3c7;
  --link: #1c1b18;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161513; --text: #ece8de; --muted: #a39d90; --rule: #ece8de; --border: #3a3832; --link: #ece8de; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 20px 80px; }
.wordmark { font-weight: 700; font-size: 56px; letter-spacing: -0.02em; line-height: 1; margin: 0 0 8px; }
.wordmark a { text-decoration: none; }
h1 { font-size: 32px; line-height: 1.2; margin: 32px 0 4px; padding-bottom: 12px; border-bottom: 2px solid var(--rule); }
h2 { font-size: 19px; margin: 36px 0 8px; }
p, li { margin: 0 0 12px; }
ul { padding-left: 22px; }
a { color: var(--link); text-underline-offset: 3px; }
.muted { color: var(--muted); font-size: 15px; }
nav { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 15px; }