:root {
  color-scheme: light dark;
  --background: #f7f7f2;
  --text: #202a28;
  --muted: #5b6761;
  --line: #d8ded6;
  --accent: #145d4c;
  --surface: #eaf0e8;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 100%;
  line-height: 1.65;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body { margin: 0; color: var(--text); background: var(--background); }
a { color: var(--accent); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 0.13em; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
p { margin: 0 0 1em; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.03em; text-wrap: balance; }
h1 { margin: 0 0 0.6em; font-size: clamp(2.2rem, 6vw, 4.4rem); font-weight: 700; }
h2 { margin: 0 0 0.7em; font-size: 1.5rem; font-weight: 650; }
h3 { margin: 1.6em 0 0.6em; font-size: 1.12rem; font-weight: 650; }
li { padding-left: 0.15em; margin-bottom: 0.65em; }
ol, ul { padding-left: 1.35em; }
.shell { width: min(960px, 100% - 64px); margin-inline: auto; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.wordmark { color: var(--text); text-decoration: none; font-size: 1.7rem; font-weight: 750; letter-spacing: -0.065em; }
.wordmark span { color: var(--accent); }
.site-nav { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 0.9rem; }
.site-nav a { padding-block: 8px; color: var(--muted); text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--text); text-decoration: underline; font-weight: 600; }
.hero { max-width: 780px; padding: 74px 0 48px; }
.eyebrow { color: var(--muted); font-size: 0.82rem; letter-spacing: 0.04em; }
.lead { color: var(--muted); max-width: 720px; font-size: 1.15rem; line-height: 1.65; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px 24px; margin-top: 28px; }
.button { display: inline-block; padding: 11px 19px; border: 1px solid var(--accent); border-radius: 8px; color: var(--background); background: var(--accent); text-decoration: none; font-weight: 600; }
.reading { max-width: 760px; }
.page-intro { padding: 58px 0 10px; }
.page-intro h1 { font-size: clamp(2rem, 5vw, 3.3rem); overflow-wrap: anywhere; }
.language-links { display: flex; flex-wrap: wrap; gap: 18px; padding: 0; list-style: none; font-size: 0.9rem; }
.language-links li { margin: 0; padding: 0; }
.reading-section { margin: 34px 0; }
.reading-section p:last-child { margin-bottom: 0; }
.language-section { margin-top: 44px; padding-top: 36px; border-top: 1px solid var(--line); }
.language-section:first-of-type { margin-top: 18px; padding-top: 0; border-top: 0; }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 42px; padding-block: 32px; border-block: 1px solid var(--line); }
.facts h2 { font-size: 1.18rem; }
.facts p { margin: 0; color: var(--muted); }
.note { padding: 18px 22px; background: var(--surface); border-radius: 8px; }
.source-list { margin-top: 24px; }
.source-list li { margin-bottom: 20px; }
.source-list strong { display: block; }
.small { color: var(--muted); font-size: 0.9rem; }
.checksum { display: block; overflow-wrap: anywhere; font-size: 0.82rem; }
.site-footer { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 8px 24px; margin-top: 60px; padding: 26px 0 34px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
.site-footer p { margin: 0; }
.skip-link { position: absolute; top: 0; left: 24px; padding: 12px; background: var(--background); transform: translateY(-150%); z-index: 1; }
.skip-link:focus { transform: translateY(0); }
@media (max-width: 680px) {
  .shell { width: calc(100% - 36px); }
  .site-header { align-items: flex-start; flex-direction: column; gap: 10px; padding-block: 22px; }
  .site-nav { gap: 4px 18px; }
  .hero { padding: 44px 0 34px; }
  .page-intro { padding-top: 38px; }
  .facts { grid-template-columns: 1fr; gap: 24px; }
  .lead { font-size: 1.05rem; }
  .site-footer { margin-top: 44px; }
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #171e1b;
    --text: #edf0e8;
    --muted: #b1bdb2;
    --line: #39463d;
    --accent: #a4d8bf;
    --surface: #25342b;
  }
}
@media print {
  :root { color-scheme: light; --background: white; --text: black; --muted: #333; --line: #ccc; --accent: #222; --surface: #eee; }
  .shell { width: 100%; }
  .skip-link, .site-nav, .language-links { display: none; }
  .hero, .page-intro { padding-top: 24px; }
  .reading-section, .facts > div { break-inside: avoid; }
}