:root {
  --bg: #121217;
  --surface: #1f1f26;
  --surface2: #292933;
  --text: #f4f2ee;
  --muted: #a6a6ad;
  --gold: #d9b86b;
  --free: #59c78c;
  --line: #2f2f39;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; overflow-wrap: anywhere; background: var(--bg); color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--gold); text-underline-offset: 3px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
nav.links { display: flex; gap: 18px; font-size: 15px; }
nav.links a { color: var(--muted); text-decoration: none; }
nav.links a:hover, nav.links a[aria-current="page"] { color: var(--text); }

.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang button {
  background: none; border: 0; color: var(--muted); font: inherit; font-size: 13px; font-weight: 600;
  padding: 4px 10px; cursor: pointer;
}
.lang button[aria-pressed="true"] { background: var(--surface2); color: var(--text); }
html[lang="en"] [lang="uk"], html[lang="uk"] [lang="en"] { display: none !important; }

.hero { text-align: center; padding: 72px 0 40px; }
.hero img.icon { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 18px 60px rgba(217,184,107,.18); }
.hero h1 { font-size: clamp(34px, 7vw, 52px); line-height: 1.1; margin: 26px 0 12px; letter-spacing: -0.02em; }
.hero p.lede { color: var(--muted); font-size: 19px; max-width: 560px; margin: 0 auto; }
.badge {
  display: inline-block; margin-top: 28px; padding: 10px 18px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line); color: var(--gold); font-weight: 600; font-size: 15px;
}

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; padding: 24px 0 56px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 20px; }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.5; }
.card .ic { font-size: 22px; margin-bottom: 8px; display: block; }

main.doc { padding-top: 40px; padding-bottom: 64px; }
main.doc h1 { font-size: 34px; line-height: 1.15; margin: 0 0 6px; letter-spacing: -0.01em; }
main.doc .meta { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
main.doc h2 { font-size: 21px; margin: 34px 0 8px; }
main.doc p, main.doc li { color: #d9d7d2; }
main.doc ul { padding-left: 22px; }
main.doc li { margin: 6px 0; }
.callout { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--gold); border-radius: 12px; padding: 14px 16px; margin: 18px 0; }
.callout p { margin: 0; }
details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; margin: 10px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 2px; }

footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .wrap { padding: 22px 20px 34px; display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between; }
footer a { color: var(--muted); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  header.top .wrap { flex-wrap: wrap; height: auto; padding-top: 12px; padding-bottom: 10px; row-gap: 8px; }
  nav.links { order: 3; width: 100%; gap: 18px; font-size: 15px; }
  .hero { padding-top: 44px; }
  main.doc h1 { font-size: 30px; }
}