:root {
  color-scheme: dark;
  --bg: #0c1324;
  --panel: #151b2d;
  --text: #dce1fb;
  --muted: #bec8d2;
  --accent: #89ceff;
  --line: rgba(137, 206, 255, 0.16);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 50% 0%, rgba(14,165,233,.12), transparent 32rem), var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}
a { color: var(--accent); }
a:hover { color: #c9e6ff; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7, 13, 31, .88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.header-inner, .page, .site-footer { width: min(920px, calc(100% - 32px)); margin: 0 auto; }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 750; }
.brand img { width: 32px; height: 32px; border-radius: 4px; object-fit: cover; }
.back-link { text-decoration: none; font-size: .92rem; font-weight: 650; }
.page { padding: 72px 0 80px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-size: .74rem; font-weight: 750; letter-spacing: .18em; text-transform: uppercase; }
h1, h2, h3 { font-family: Geist, Inter, system-ui, sans-serif; line-height: 1.2; }
h1 { margin: 0 0 16px; font-size: clamp(2.2rem, 6vw, 3.8rem); letter-spacing: -.035em; }
h2 { margin: 42px 0 10px; font-size: 1.45rem; }
h3 { margin: 28px 0 8px; font-size: 1.08rem; }
p, li { color: var(--muted); }
.lede { max-width: 720px; margin: 0 0 28px; font-size: 1.08rem; }
.updated { display: inline-block; margin-bottom: 24px; color: var(--muted); font-size: .86rem; }
.content-card { padding: clamp(24px, 5vw, 48px); background: rgba(21, 27, 45, .72); border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 24px 70px rgba(0,0,0,.2); }
.content-card > :first-child { margin-top: 0; }
.faq-item { padding: 22px 0; border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }
.faq-item h2 { margin: 0 0 8px; font-size: 1.12rem; }
.faq-item p { margin: 0; }
.site-footer { padding: 0 0 48px; }
.footer-nav { padding-top: 26px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 12px 22px; }
.footer-nav a { color: var(--muted); text-decoration: none; font-size: .84rem; }
.footer-nav a[aria-current="page"] { color: var(--accent); }
.copyright { width: 100%; margin: 10px 0 0; font-size: .78rem; color: #88929b; }
@media (max-width: 560px) { .header-inner { min-height: 64px; } .page { padding-top: 48px; } .content-card { border-radius: 18px; } }