:root { --ink: #111; --muted: #5c5c5c; --line: #e2e2e2; --bg: #fff; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-variant-numeric: tabular-nums; -webkit-font-smoothing: antialiased; }
main { max-width: 680px; margin: 0 auto; padding: 20px 16px 64px; }
a { color: inherit; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

header.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 14px; margin-bottom: 44px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 650; font-size: 17px; text-decoration: none; }
.brand img { width: 22px; height: 22px; }
.brand small { font-weight: 400; font-size: 14px; color: var(--muted); }
header.top nav { display: flex; gap: 18px; font-size: 15px; }
header.top nav a { text-decoration: none; color: var(--muted); }
header.top nav a:hover { color: var(--ink); text-decoration: underline; }

h1 { font-size: clamp(30px, 5.4vw, 42px); line-height: 1.12; letter-spacing: -0.5px; font-weight: 700; margin: 0 0 14px; }
h2 { font-size: 21px; line-height: 1.3; margin: 48px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p.lead { font-size: 19px; line-height: 1.5; margin: 0 0 12px; }
p.facts { color: var(--muted); margin: 0 0 32px; }
ul { padding-left: 20px; } li { margin: 4px 0; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .88em; background: #f4f4f4; border-radius: 3px; padding: 1px 5px; }

figure.example { margin: 0 0 8px; }
figure.example img { display: block; width: 100%; max-width: 420px; height: auto; margin: -18px 0 -18px -24px; }
figure.example figcaption { font-size: 14px; color: var(--muted); margin-top: 6px; }

table.plain { width: 100%; border-collapse: collapse; font-size: 16px; margin-top: 12px; }
table.plain th, table.plain td { padding: 9px 12px 9px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
table.plain thead th { font-size: 13px; font-weight: 600; color: var(--muted); border-bottom: 1px solid var(--ink); }
table.plain td:first-child { width: 36%; font-weight: 600; }

.index table { width: 100%; border-collapse: collapse; font-size: 16px; margin-top: 12px; }
.index th, .index td { padding: 8px 8px 8px 0; border-bottom: 1px solid var(--line); text-align: left; }
.index thead th { font-size: 13px; font-weight: 600; color: var(--muted); border-bottom: 1px solid var(--ink); }
.index .n { text-align: right; padding-right: 16px; }
.index .spark { width: 90px; height: 20px; display: block; }
.index .spark polyline { fill: none; stroke: var(--ink); stroke-width: 1.5; vector-effect: non-scaling-stroke; }

.small { font-size: 14px; color: var(--muted); } .muted { color: var(--muted); }
.note { color: var(--muted); }
footer { margin-top: 64px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); line-height: 1.8; }

@media (prefers-color-scheme: dark) {
  :root { --ink: #ededed; --muted: #a3a3a3; --line: #333; --bg: #141414; }
  code { background: #222; }
  .brand img { filter: invert(1); }
}
@media (max-width: 480px) { .index th:last-child, .index td:last-child { display: none; } }