/* The Silvance design (row D): ink title band, ruled numbered heads, square corners, color only on links. */
:root { --sheet: #F2F1ED; --ink: #0D0D0D; --muted: #55554F; --rule: #D3D1C9; --bar: #0D0D0D; --on-bar: #F2F1ED; --bar-muted: #B7B5AD; --link: #1E5BB8; }
@media (prefers-color-scheme: dark) {
  :root { --sheet: #121211; --ink: #E9E7E0; --muted: #A3A199; --rule: #34332F; --bar: #E9E7E0; --on-bar: #121211; --bar-muted: #55554F; --link: #8DB4F2; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--sheet); color: var(--ink); font: 17px/1.55 "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif; }
header { background: var(--bar); color: var(--on-bar); padding: 14px 16px; display: flex; gap: 16px; align-items: baseline; flex-wrap: wrap; }
.brand { font: 700 18px/1.2 "IBM Plex Sans Condensed", "Arial Narrow", sans-serif; letter-spacing: .06em; }
.sub { font: 13px/1.2 "IBM Plex Mono", ui-monospace, monospace; color: var(--bar-muted); }
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font: 700 30px/1.15 "IBM Plex Sans Condensed", "Arial Narrow", sans-serif; margin: 0 0 6px; }
h2 { font: 700 14px/1.3 "IBM Plex Sans Condensed", "Arial Narrow", sans-serif; letter-spacing: .06em; text-transform: uppercase; border-bottom: 2px solid var(--ink); padding-bottom: 3px; margin: 28px 0 10px; }
h2 span { margin-right: 6px; }
.meta, code { font: 13px/1.4 "IBM Plex Mono", ui-monospace, monospace; color: var(--muted); }
ul { padding-left: 20px; } li { margin: 6px 0; }
a { color: var(--link); }
table { width: 100%; border-collapse: collapse; } td { border-bottom: 1px solid var(--rule); padding: 8px 0; vertical-align: top; }
td:first-child { font: 13px/1.6 "IBM Plex Mono", ui-monospace, monospace; color: var(--muted); width: 110px; }