:root {
  color-scheme: light;
  --paper: #f1f4f2;
  --ink: #141b16;
  --muted: #536159;
  --accent: #276c50;
  --rule: #d8e1db;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font: 1rem/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--accent); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
.skip { position: absolute; top: -100px; left: 1rem; background: #fff; padding: .75rem; }
.skip:focus { top: 1rem; z-index: 1; }
header { background: var(--paper); border-bottom: 1px solid var(--rule); }
.header-inner, main, footer { width: min(100% - 3rem, 72ch); margin-inline: auto; }
.header-inner { padding-block: 1.6rem 1rem; }
.brand { color: var(--ink); font-size: 1.8rem; font-weight: 750; letter-spacing: -.04em; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; margin-top: 1rem; }
nav a { padding: .35rem 0; color: var(--muted); }
nav a[aria-current="page"] { color: var(--ink); text-decoration-thickness: 2px; font-weight: 650; }
main { padding-block: 2.8rem 3.2rem; }
h1 { font-size: clamp(2rem, 6vw, 2.7rem); line-height: 1.15; letter-spacing: -.035em; margin: 0 0 1rem; }
h2 { font-size: 1.3rem; line-height: 1.35; margin: 2.2rem 0 .65rem; }
h3 { font-size: 1.05rem; line-height: 1.4; margin: 1.5rem 0 .5rem; }
p, ul, ol { margin: .8rem 0; }
li { margin-block: .45rem; }
.updated, footer { color: var(--muted); font-size: .92rem; }
.notice { border-left: 3px solid var(--accent); padding-left: 1.1rem; margin-block: 1.5rem; }
footer { border-top: 1px solid var(--rule); padding-block: 1.4rem 2rem; }
footer p { margin: .4rem 0; }
@media (max-width: 420px) {
  .header-inner, main, footer { width: calc(100% - 2rem); }
  main { padding-block: 2rem; }
}
@media print {
  header, footer, .skip { display: none; }
  main { width: 100%; padding: 0; }
  a { color: inherit; }
  h2, h3 { break-after: avoid; }
}