:root {
  color-scheme: light dark;
  --bg: #fbfaf7;
  --fg: #1f2328;
  --muted: #59636e;
  --accent: #0b5cad;
  --rule: #d9d5cc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171b;
    --fg: #e6e9ec;
    --muted: #9aa4ae;
    --accent: #7bb4f0;
    --rule: #2c333a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header, main, footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}
header { padding-top: 3rem; }
.org { margin: 0; color: var(--muted); font-size: 0.9rem; letter-spacing: 0.02em; text-transform: uppercase; }
h1 { font-size: 2.25rem; line-height: 1.15; margin: 0.25rem 0 0.75rem; }
h2 { font-size: 1.25rem; margin: 2rem 0 0.5rem; }
h3 { font-size: 1.05rem; margin: 1.25rem 0 0.25rem; }
.lede { font-size: 1.1rem; color: var(--muted); margin: 0 0 1rem; }
a { color: var(--accent); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.95em; }
ul { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }
footer { margin-top: 3rem; padding-top: 1rem; padding-bottom: 3rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.9rem; }