*, *::before, *::after { box-sizing: border-box; }
:root { --fg: #1d1d1f; --muted: #5f6368; --bg: #fff; --panel: #f5f6f8; --line: #e2e4e8; --accent: #d7263d;
  --link: #0a60c2; }
body { font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; margin: 0; line-height: 1.55;
  color: var(--fg); background: var(--bg); }
.wrap { max-width: 56em; margin: 0 auto; padding: 0 1.25em; }
.doc { max-width: 42em; }
a { color: var(--link); }
code { background: var(--panel); padding: 0 0.25em; border-radius: 3px; }
mark { background: #fff3b0; color: inherit; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: 0.5em 1.5em; padding-top: 0.9em; padding-bottom: 0.9em; }
.brand { display: flex; align-items: center; gap: 0.55em; color: var(--fg); text-decoration: none; font-weight: 700;
  font-size: 1.2em; letter-spacing: 0.02em; }
.brand svg { width: 1.6em; height: 1.6em; }
nav a { margin-left: 1.2em; text-decoration: none; color: var(--muted); }
nav a:first-child { margin-left: 0; }
nav a:hover { color: var(--fg); }
nav a.lang { border: 1px solid var(--line); border-radius: 1em; padding: 0.05em 0.6em; font-size: 0.85em;
  font-weight: 600; }
main { padding: 1.5em 0 3em; }
h1 { font-size: 1.8em; line-height: 1.25; } h2 { font-size: 1.3em; margin-top: 1.8em; }
.hero { padding: 3.5em 0 2.5em; }
.hero h1 { font-size: 2.4em; margin: 0 0 0.4em; max-width: 18em; }
.hero p { font-size: 1.15em; color: var(--muted); max-width: 36em; margin: 0; }
section { padding: 1.5em 0; }
section > h2 { margin-top: 0; }
.card { display: grid; grid-template-columns: 5em 1fr; gap: 1.25em; padding: 1.5em; background: var(--panel);
  border: 1px solid var(--line); border-radius: 14px; }
.card .icon { width: 5em; height: 5em; border-radius: 22%; background: #111; display: flex; align-items: center;
  justify-content: center; }
.card h3 { margin: 0 0 0.25em; font-size: 1.3em; }
.card p { margin: 0.3em 0; }
.tag { display: inline-block; font-size: 0.8em; padding: 0.1em 0.6em; border-radius: 1em; background: var(--bg);
  border: 1px solid var(--line); color: var(--muted); font-weight: 400; vertical-align: middle; }
.links a { margin-right: 1.2em; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(14em, 1fr)); gap: 1.25em; }
.grid h3 { font-size: 1.05em; margin: 0 0 0.3em; }
.grid p { margin: 0; color: var(--muted); }
dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 0.4em 1.5em; margin: 0; }
dl.facts dt { color: var(--muted); } dl.facts dd { margin: 0; }
footer.site { border-top: 1px solid var(--line); font-size: 0.85em; color: var(--muted); }
footer.site .wrap { padding-top: 1.2em; padding-bottom: 2em; display: flex; flex-wrap: wrap; gap: 0.5em 1.5em;
  justify-content: space-between; }
footer.site a { color: var(--muted); }
@media (max-width: 34em) { .hero h1 { font-size: 1.8em; } .card { grid-template-columns: 1fr; }
  .card h3 .tag { display: table; margin-top: 0.4em; }
  nav a { margin-left: 0.9em; } }
@media (prefers-color-scheme: dark) { :root { --fg: #e8e8ea; --muted: #a0a4ab; --bg: #111214; --panel: #1b1d21;
  --line: #2c2f35; --link: #6cb4ff; } mark { background: #5a4a00; } }