:root {
  color-scheme: dark;
  --bg: #070a18;
  --panel: #11172d;
  --text: #f4f6ff;
  --muted: #b5bed9;
  --line: #2d3a68;
  --accent: #9b62ff;
  --cyan: #58d7ff;
  --good: #58e6aa;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 15% -10%, #342269 0, transparent 38%),
    radial-gradient(circle at 92% 8%, #123d63 0, transparent 34%), var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.65;
}
.wrap { width: min(960px, calc(100% - 32px)); margin: 0 auto; }
header { padding: 36px 0 20px; }
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 16px;
  background: linear-gradient(145deg, var(--accent), #4f6fff);
  font-size: 27px;
  box-shadow: 0 12px 38px #6841c966;
}
.brand b { font-size: 20px; }
.brand span { display: block; color: var(--muted); font-size: 13px; }
.hero, .card {
  background: linear-gradient(150deg, #151c36e8, #0d1227ef);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 16px 60px #0005;
}
.hero { padding: 34px; margin: 16px 0; }
.eyebrow {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.hero h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.08; margin: 8px 0 12px; }
.hero p { color: var(--muted); max-width: 720px; }
.meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.pill {
  border: 1px solid var(--line);
  background: #0b1023;
  padding: 7px 11px;
  border-radius: 999px;
  color: #dce2ff;
  font-size: 12px;
}
nav {
  position: sticky;
  top: 0;
  z-index: 5;
  background: #070a18e8;
  backdrop-filter: blur(16px);
  border-block: 1px solid #263257;
  padding: 10px 0;
}
nav .wrap { display: flex; gap: 10px; overflow: auto; }
nav a, .button {
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 13px;
  white-space: nowrap;
  font-size: 13px;
}
nav a:hover, .button:hover { border-color: var(--accent); background: #241847; }
.content { display: grid; gap: 16px; padding: 24px 0 48px; }
.card { padding: 26px; }
.card h2 { font-size: 23px; margin: 0 0 10px; }
.card h3 { font-size: 17px; margin: 22px 0 6px; }
.card p, .card li { color: var(--muted); }
.card li + li { margin-top: 7px; }
a { color: #86dcff; }
.notice { border-left: 4px solid var(--good); padding: 14px 16px; background: #0e2b2b; border-radius: 10px; color: #dffff1; }
.warning { border-left-color: #ffbf5b; background: #2c2111; color: #fff0cc; }
.table { overflow: auto; }
table { border-collapse: collapse; width: 100%; min-width: 680px; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 13px 10px; color: var(--muted); }
th { color: var(--text); font-size: 13px; }
.lang { margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line); }
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; background: #080c1c; border: 1px solid var(--line); padding: 2px 6px; border-radius: 7px; word-break: break-all; }
footer { border-top: 1px solid #263257; padding: 24px 0 40px; color: var(--muted); font-size: 13px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.button.primary { background: linear-gradient(135deg, #8555ff, #4d79ff); border: 0; font-weight: 750; }
@media (max-width: 600px) {
  .wrap { width: min(100% - 20px, 960px); }
  .hero, .card { padding: 20px; border-radius: 16px; }
  header { padding-top: 22px; }
}