:root {
  --bg: #0D0D2B;
  --bg-alt: #15153A;
  --primary: #6366F1;
  --primary-2: #8B5CF6;
  --accent: #22D3EE;
  --text: #F8FAFC;
  --muted: #A0A0C0;
  --border: rgba(255, 255, 255, 0.08);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
.bg {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(900px 600px at 10% -10%, rgba(99,102,241,0.22), transparent 60%),
    radial-gradient(800px 600px at 110% 10%, rgba(139,92,246,0.18), transparent 60%),
    var(--bg);
}
.wrap { max-width: 760px; margin: 0 auto; padding: 24px 20px 64px; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 8px 0 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--text); text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(99,102,241,0.35);
}
.brand-mark svg { width: 18px; height: 18px; color: #fff; }
.back { color: var(--muted); text-decoration: none; font-size: 14px; }
.back:hover { color: var(--text); }

.doc {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 26px;
}
.doc h1 { font-size: 32px; line-height: 1.15; margin: 0 0 6px; letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff 0%, #C7D2FE 60%, #A5F3FC 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.doc .updated { color: var(--muted); font-size: 13px; margin: 0 0 24px; }
.doc .lead { font-size: 16px; color: var(--text); margin: 0 0 16px; }
.doc h2 { font-size: 18px; margin: 28px 0 8px; color: #C7D2FE; }
.doc h3 { font-size: 15px; margin: 20px 0 6px; color: var(--text); }
.doc p, .doc li { font-size: 14px; color: #D1D5DB; }
.doc ul { padding-left: 20px; margin: 6px 0 14px; }
.doc li { margin-bottom: 6px; }
.doc a { color: #A5F3FC; text-decoration: underline; text-underline-offset: 2px; }
.doc a:hover { color: #67E8F9; }
.doc strong { color: var(--text); }
.doc-foot { margin-top: 36px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--muted); font-size: 12px; text-align: center; }
.doc-foot a { color: var(--muted); }