:root{
  --bg:#faf9f7; --card:#ffffff; --text:#1f2430; --muted:#5f6675; --line:#e6e1d8;
  --accent:#1d5a8c; --accent-soft:#e6eff7; --on-accent:#ffffff;
  --shadow:0 1px 2px rgba(40,30,10,.06),0 6px 20px rgba(40,30,10,.06);
}
@media (prefers-color-scheme: dark){
  :root{--bg:#121110; --card:#1c1a18; --text:#f3efe8; --muted:#a8a095; --line:#38342e;
    --accent:#7db4e3; --accent-soft:#1b2a37; --on-accent:#0d1620; --shadow:none}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif}
a{color:var(--accent)}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
header.site{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700;font-size:1.15rem}
.brand img{height:34px;width:auto}
nav a{margin-left:18px;text-decoration:none;color:var(--muted);font-weight:500}
nav a:hover,nav a[aria-current]{color:var(--accent)}
.hero{padding:44px 0 28px;text-align:center}
.hero img.app{width:112px;height:112px;border-radius:26px;box-shadow:var(--shadow)}
h1{font-size:clamp(1.9rem,6vw,2.7rem);line-height:1.15;margin:22px 0 12px;letter-spacing:-.01em}
.lead{font-size:1.15rem;color:var(--muted);max-width:34rem;margin:0 auto 22px}
.soon{display:inline-block;background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:8px 16px;font-weight:600;font-size:.95rem}
.btn{display:inline-block;background:var(--accent);color:var(--on-accent);border-radius:12px;padding:12px 20px;text-decoration:none;font-weight:600}
h2{font-size:1.35rem;margin:44px 0 14px}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.lang{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow)}
.lang b{display:block;font-size:1.05rem}
.lang span{color:var(--muted);font-size:.92rem}
.cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow)}
.card h3{margin:0 0 6px;font-size:1.05rem}
.card p{margin:0;color:var(--muted);font-size:.98rem}
main.doc{padding:18px 0 40px}
main.doc h1{font-size:2rem;text-align:left;margin:10px 0 6px}
main.doc h2{margin:34px 0 8px}
main.doc p,main.doc li{max-width:42rem}
.meta{color:var(--muted);font-size:.95rem}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:4px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600;padding:12px 0}
details p,details ol,details ul{margin:0 0 14px;color:var(--muted)}
footer.site{border-top:1px solid var(--line);margin-top:56px;padding:22px 0 40px;color:var(--muted);font-size:.92rem;display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between}
footer.site a{color:var(--muted)}
@media (max-width:520px){nav a{margin-left:12px}}