:root {
  --bg: #0b1020;
  --bg-soft: #111830;
  --panel: #141d3a;
  --border: #26315b;
  --text: #e8ecff;
  --muted: #9aa6d6;
  --accent: #4f8cff;
  --accent-2: #7c5cff;
  --good: #39c07f;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --maxw: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(79, 140, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at 0% 0%, rgba(124, 92, 255, 0.16), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg-soft) 60%, var(--bg));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(140%) blur(10px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.2px;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: #0b1020;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 18px rgba(79, 140, 255, 0.35);
}
.brand-mark svg { color: #06122b; }
.brand-name { font-size: 16px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 10px;
  transition: background 0.15s ease, color 0.15s ease;
}
.site-nav a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.site-nav a[aria-current="page"] {
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 22%, transparent);
}

/* Main / hero */
main { flex: 1; }
.hero {
  padding: 72px 0 56px;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 14px;
}
h1 {
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.05;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
  font-weight: 760;
}
.lede {
  font-size: clamp(16px, 2.4vw, 20px);
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 26px;
}
.lede strong { color: var(--text); }

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 30px;
}
.pill {
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.callout {
  max-width: 640px;
  padding: 18px 20px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  box-shadow: var(--shadow);
}
.callout p { margin: 0; color: var(--text); }
.callout strong { color: #fff; }
.callout a { color: var(--accent); }

/* Docs */
.doc { padding: 56px 0 72px; }
.doc article {
  max-width: var(--maxw);
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: clamp(22px, 4vw, 40px);
  box-shadow: var(--shadow);
}
.doc h1 {
  font-size: clamp(26px, 5vw, 40px);
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}
.doc .updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 26px;
}
.doc h2 {
  font-size: 19px;
  margin: 30px 0 10px;
  letter-spacing: -0.01em;
  scroll-margin-top: 80px;
}
.doc p { margin: 0 0 14px; color: var(--text); }
.doc ul { margin: 0 0 14px; padding-left: 20px; }
.doc li { margin: 6px 0; }
.doc a { color: var(--accent); }
.fineprint {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  margin-top: 40px;
}
.footer-inner {
  padding: 22px 20px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}
.footer-inner p { margin: 0; }
.footer-links a { color: var(--muted); text-decoration: none; margin: 0 4px; }
.footer-links a:hover { color: var(--text); }

/* Responsive nav: collapse under brand on small screens */
@media (max-width: 560px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: 8px; height: auto; padding: 12px 0; }
  .hero { padding: 48px 0 40px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}