:root {
  --bg: #fbfaf7;
  --text: #1d1d1f;
  --muted: #5f5f66;
  --link: #3a4fb8;
  --rule: #e2e0da;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141416;
    --text: #ececef;
    --muted: #a3a3ab;
    --link: #9fb0ff;
    --rule: #2c2c31;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0.4em 0 0.6em; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; line-height: 1.3; margin: 2em 0 0.5em; padding-top: 1em; border-top: 1px solid var(--rule); }
p, ul { margin: 0 0 1em; }
ul { padding-left: 1.3em; }
li { margin-bottom: 0.4em; }
a { color: var(--link); overflow-wrap: anywhere; }
.home { margin: 0; font-weight: 600; }
.home a { color: var(--muted); text-decoration: none; }
.lead { font-size: 1.15rem; color: var(--muted); }
footer { margin-top: 3em; color: var(--muted); font-size: 0.9rem; }