:root {
  --bg: #0d0d0f; --surface: #17171b; --raised: #1f1f24; --rule: rgba(255,255,255,.08); --rule-strong: rgba(255,255,255,.14);
  --text: #f2f2f4; --muted: #9a9aa4; --faint: #7a7a83; --accent: #4d7cfe; --accent-2: #6f93ff;
  --font: "Segoe UI Variable Text","Segoe UI",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); -webkit-font-smoothing: antialiased; line-height: 1.65; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 28px; border-bottom: 1px solid var(--rule); }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--text); letter-spacing: .01em; }
.brand:hover { text-decoration: none; }
.brand img { width: 24px; height: 24px; border-radius: 6px; display: block; }
.brand span { color: var(--faint); font-weight: 500; }
.brand span::before { content: "/"; margin: 0 10px 0 2px; color: var(--rule-strong); }
.top nav { display: flex; gap: 18px; font-size: 13px; }
.top nav a { color: var(--muted); }
.top nav a:hover, .top nav a.here { color: var(--text); }
main { max-width: 760px; margin: 0 auto; padding: 40px 24px 90px; }
.label { font-size: 10.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
h1 { font-size: clamp(30px, 4vw, 40px); line-height: 1.08; letter-spacing: -.03em; margin: 8px 0 8px; text-wrap: balance; }
.meta { color: var(--faint); font-size: 13px; margin-bottom: 26px; }
.lede { font-size: 16.5px; color: var(--muted); max-width: 62ch; margin-bottom: 8px; }
h2 { font-size: 21px; letter-spacing: -.02em; margin: 44px 0 10px; padding-top: 16px; border-top: 1px solid var(--rule); }
h3 { font-size: 15.5px; margin: 24px 0 6px; }
p, li { font-size: 14.5px; color: #d5d5db; }
ul, ol { padding-left: 22px; }
li + li { margin-top: 5px; }
strong { color: var(--text); }
table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13.5px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
.note { margin: 18px 0; padding: 12px 14px; border-radius: 10px; background: var(--surface); border: 1px solid var(--rule); border-left: 2px solid var(--accent); font-size: 13.5px; color: var(--muted); }
.note strong { color: var(--text); }
.toc { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin: 20px 0 8px; }
.toc a { display: block; padding: 12px 14px; border: 1px solid var(--rule-strong); border-radius: 12px; background: var(--surface); color: var(--text); }
.toc a:hover { border-color: var(--accent); text-decoration: none; }
.toc a b { display: block; font-size: 14px; margin-bottom: 3px; }
.toc a span { font-size: 12.5px; color: var(--muted); }
footer { max-width: 760px; margin: 0 auto; padding: 22px 24px; color: var(--faint); font-size: 12px; border-top: 1px solid var(--rule); display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
footer nav { display: flex; gap: 14px; }
footer a { color: var(--faint); }
footer a:hover { color: var(--text); }