:root{
  --bg:#181A1B; --surface:#1E2022; --elevated:#202224;
  --text:#F5F6F7; --text-2:#9BA1A6; --text-3:#6B7177;
  --blue:#1696DB; --blue-2:#1176B6; --yellow:#F5C518; --red:#E5484D; --line:#2A2D2F;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:780px;margin:0 auto;padding:0 22px}

header.site{position:sticky;top:0;background:rgba(24,26,27,.82);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);z-index:20}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-weight:700;font-size:19px;letter-spacing:-.01em;color:var(--text)}
.brand:hover{text-decoration:none}
.brand .c{color:var(--blue)}
nav a{color:var(--text-2);font-size:14px;margin-left:20px}
nav a:hover{color:var(--text);text-decoration:none}

.hero{text-align:center;padding:78px 0 56px}
.logo{width:88px;height:88px;border-radius:21px;display:inline-block;margin-bottom:26px;box-shadow:0 16px 48px rgba(22,150,219,.35);overflow:hidden}
.logo img{width:100%;height:100%;display:block}
.hero h1{font-size:42px;line-height:1.08;letter-spacing:-.025em;margin-bottom:16px}
.hero .lead{font-size:18px;color:var(--text-2);max-width:540px;margin:0 auto 30px}
.cta{display:inline-block;background:var(--surface);border:1px solid var(--line);color:var(--text-2);padding:13px 22px;border-radius:999px;font-weight:600;font-size:15px}
.cta.live{background:var(--blue);border-color:var(--blue);color:#fff}
.cta:hover{text-decoration:none}
.cta.live:hover{background:var(--blue-2);border-color:var(--blue-2)}

.features{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:14px 0 68px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;text-align:left}
.feature .dot{width:36px;height:36px;border-radius:10px;background:rgba(22,150,219,.14);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:13px}
.feature.y .dot{background:rgba(245,197,24,.14);color:var(--yellow)}
.feature h3{font-size:16px;margin-bottom:6px;color:var(--text)}
.feature p{font-size:14px;color:var(--text-2)}

footer.site{border-top:1px solid var(--line);padding:30px 0 48px;color:var(--text-3);font-size:14px}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:14px 22px;justify-content:space-between;align-items:center}
footer.site nav a{margin-left:0;margin-right:18px}

.doc{padding:46px 0 84px}
.back{display:inline-block;margin-bottom:22px;color:var(--text-2);font-size:14px}
.doc h1{font-size:32px;letter-spacing:-.02em;margin-bottom:6px}
.doc .updated{color:var(--text-3);font-size:14px;margin-bottom:30px}
.doc h2{font-size:20px;margin:34px 0 10px;color:var(--text)}
.doc p,.doc li{color:var(--text-2);margin-bottom:12px}
.doc ul{padding-left:22px}
.doc strong{color:var(--text);font-weight:600}
.doc a{word-break:break-word}

@media(max-width:600px){
  .hero{padding:56px 0 40px}
  .hero h1{font-size:32px}
  .features{grid-template-columns:1fr}
  nav a{margin-left:14px}
}