:root {
  --ink: #183e38;
  --muted: #5f7069;
  --paper: #f7f8f5;
  --card: #ffffff;
  --line: #dfe5dd;
  --lime: #caef8a;
  --link: #1d5c52;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e6efe9;
    --muted: #a3b3ab;
    --paper: #101614;
    --card: #17201d;
    --line: #2a3632;
    --lime: #caef8a;
    --link: #caef8a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 28px; }
header.brand .mark {
  width: 32px; height: 32px; border-radius: 10px; background: #183e38;
  display: grid; place-items: center; color: #caef8a; font-weight: 700;
}
header.brand a { color: inherit; text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: -0.4px; }
nav.lang { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 24px; }
nav.lang a, .button {
  display: inline-block; padding: 6px 14px; border-radius: 18px; border: 1px solid var(--line);
  color: var(--ink); text-decoration: none; font-size: 14px; background: var(--card);
}
nav.lang a span, .tri span { white-space: nowrap; }
h1 { font-size: 32px; line-height: 1.2; letter-spacing: -0.8px; margin: 0 0 6px; }
h2 { font-size: 21px; margin: 36px 0 8px; letter-spacing: -0.3px; }
h3 { font-size: 17px; margin: 22px 0 6px; }
p, li { color: var(--ink); }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; margin: 16px 0; }
ul, ol { padding-left: 22px; }
a { color: var(--link); }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 8px 0 16px; }
th, td { text-align: left; vertical-align: top; padding: 8px 8px 8px 0; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
.table-wrap { overflow-x: auto; }
hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }
footer { color: var(--muted); font-size: 13px; margin-top: 48px; }