:root {
  --bg: #04060e; --card: #0d1224; --line: rgba(255,255,255,.08);
  --text: #f1f5f9; --text-2: rgba(241,245,249,.72); --muted: rgba(241,245,249,.45);
  --primary: #818cf8; --accent: #a78bfa;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text-2); font: 16px/1.75 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; background:
  radial-gradient(ellipse at 15% 0%, rgba(99,102,241,.10), transparent 55%),
  radial-gradient(ellipse at 90% 20%, rgba(139,92,246,.07), transparent 50%); }
a { color: var(--primary); }
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; max-width: 860px; margin: 0 auto; padding: 22px 20px; }
.brand { color: var(--text); font-weight: 700; text-decoration: none; letter-spacing: .01em; }
.brand span { background: linear-gradient(135deg,#6366f1,#a78bfa); -webkit-background-clip: text; background-clip: text; color: transparent; }
.top nav { display: flex; gap: 18px; font-size: 14px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { color: var(--text); }
main { max-width: 860px; margin: 0 auto; padding: 8px 20px 80px; }
h1 { color: var(--text); font-size: clamp(30px, 5vw, 42px); line-height: 1.15; margin: 24px 0 6px; letter-spacing: -.02em; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.summary { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 22px; margin: 0 0 36px; }
.summary h2 { margin-top: 0; font-size: 16px; }
.summary ul { margin: 0; padding-left: 20px; }
h2 { color: var(--text); font-size: 21px; margin: 40px 0 8px; scroll-margin-top: 16px; }
h3 { color: var(--text); font-size: 16px; margin: 22px 0 4px; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
strong { color: var(--text); }
.toc { columns: 2; column-gap: 32px; font-size: 14px; padding-left: 18px; margin-bottom: 8px; }
.toc a { color: var(--text-2); text-decoration: none; }
.toc a:hover { color: var(--text); }
table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 12px 0; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--text); font-weight: 600; }
.table-wrap { overflow-x: auto; }
footer { max-width: 860px; margin: 0 auto; padding: 24px 20px 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a { color: var(--muted); }
@media (max-width: 600px) { .toc { columns: 1; } .top nav { gap: 12px; } }