:root {
  --bg: #0b0b0f;
  --surface: #16161d;
  --border: #262631;
  --fg: #ededf2;
  --muted: #9898a6;
  --brand: #7c5cff;
  --brand-fg: #ffffff;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6; -webkit-font-smoothing: antialiased;
  min-height: 100dvh; display: flex; flex-direction: column;
}
a { color: var(--brand); }
.wrap { width: 100%; max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.site { padding: 20px 0; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.wordmark { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 20px; letter-spacing: -0.01em; color: var(--fg); text-decoration: none; }
.wordmark img { width: 28px; height: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 16px; border-radius: 8px; font-weight: 500; font-size: 15px; text-decoration: none; border: 1px solid var(--border); color: var(--fg); background: transparent; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-fg); }
main { flex: 1; }
.hero { padding: 72px 0 48px; }
.hero h1 { font-size: clamp(36px, 7vw, 56px); line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 20px; }
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 560px; margin: 0 0 32px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.note { color: var(--muted); font-size: 14px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding-top: 24px; padding-bottom: 72px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.doc { padding-top: 32px; padding-bottom: 72px; }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } .hero { padding: 40px 0 32px; } }
.doc h1 { font-size: 34px; letter-spacing: -0.02em; margin: 0 0 4px; }
.doc .updated { color: var(--muted); margin: 0 0 32px; }
.doc h2 { font-size: 20px; margin: 36px 0 8px; }
.doc p, .doc li { color: var(--fg); }
.doc ul { padding-left: 20px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 8px 0; }
.doc th, .doc td { text-align: left; border-bottom: 1px solid var(--border); padding: 8px 6px; vertical-align: top; }
footer.site { border-top: 1px solid var(--border); padding: 24px 0; color: var(--muted); font-size: 14px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }
footer.site nav { display: flex; gap: 16px; }
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--fg); }