:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #5f6368;
  --line: #e5e5e7;
  --card: #f5f5f7;
  --accent: #e5322d;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --fg: #f5f5f7;
    --muted: #9a9aa0;
    --line: #2a2a2c;
    --card: #161617;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: inherit; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.site {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--line);
}
header.site .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; }
header.site .brand .mark { width: 30px; height: 30px; }
.mark .fg { fill: var(--fg); }
footer.site .legal { display: flex; align-items: center; gap: 8px; }
footer.site .legal .mark { width: 18px; height: 18px; opacity: 0.7; }
.ficon { color: var(--fg); display: inline-flex; width: 40px; height: 40px; border-radius: 11px; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--fg) 8%, transparent); }
.ficon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ficon svg circle { fill: currentColor; stroke: none; }
/* Icon to the left of the title and the text (owner: «не над строками, а слева»). */
.feature { display: grid; grid-template-columns: 40px 1fr; column-gap: 14px; align-items: start; }
.feature .ficon { grid-row: span 2; }
.feature h3, .feature p { grid-column: 2; }
header.site nav { display: flex; align-items: center; gap: 16px; font-size: 15px; flex-wrap: wrap; justify-content: flex-end; margin-inline-start: auto; }
header.site select.lang { margin-inline-start: 16px; }
header.site nav a { text-decoration: none; color: var(--muted); }
header.site nav a:hover, header.site nav a[aria-current="page"] { color: var(--fg); }
select.lang { font: inherit; font-size: 14px; color: var(--muted); background: transparent; border: 1px solid var(--line);
  border-radius: 8px; padding: 2px 6px; max-width: 140px; }
main { padding: 40px 0 64px; }
.hero { text-align: center; padding: 32px 0 8px; }
.hero img { width: 128px; height: 128px; }
.hero h1 { font-size: 44px; line-height: 1.1; margin: 24px 0 12px; letter-spacing: -0.02em; }
.store { display: inline-block; margin-top: 28px; }
.store img { height: 54px; width: auto; display: block; }
.hero p.lead { font-size: 21px; color: var(--muted); margin: 0 auto; max-width: 560px; }
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 48px 0; }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }
.feature { background: var(--card); border-radius: 18px; padding: 20px; }
.feature h3 { margin: 9px 0 6px; font-size: 17px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
.doc h1 { font-size: 34px; line-height: 1.15; margin: 0 0 6px; letter-spacing: -0.01em; }
.doc .meta { color: var(--muted); font-size: 15px; margin: 0 0 28px; }
.doc h2 { font-size: 22px; margin: 36px 0 10px; }
.doc h3 { font-size: 18px; margin: 24px 0 8px; }
.doc p, .doc li { color: var(--fg); }
.doc ul { padding-inline-start: 22px; }
.note { background: var(--card); border-radius: 14px; padding: 16px 18px; margin: 20px 0; }
footer.site { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer.site .links { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
footer.site a { text-decoration: none; color: var(--muted); }
footer.site a:hover { color: var(--fg); }
@media (max-width: 520px) {
  .hero h1 { font-size: 34px; }
  .store { display: inline-block; margin-top: 28px; }
.store img { height: 54px; width: auto; display: block; }
.hero p.lead { font-size: 18px; }
  header.site { flex-wrap: wrap; row-gap: 12px; }
  header.site select.lang { order: 2; margin-inline-start: auto; }
  header.site nav { order: 3; width: 100%; justify-content: flex-start; gap: 16px; font-size: 14px; flex-wrap: wrap; }
}