@font-face { font-family: Archivo; src: url(fonts/Archivo.woff2) format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Space Mono"; src: url(fonts/SpaceMono-400.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Space Mono"; src: url(fonts/SpaceMono-700.woff2) format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --ink: #0A0A0A; --cream: #F2EFE9; --paper: #FBFAF7; --orange: #FF4F00; --orange-ink: #C23C00;
  --blue: #0B5FFF; --muted: #5C5850; --rule: #D8D2C6;
  --mono: "Space Mono", ui-monospace, Menlo, monospace;
  --sans: Archivo, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 76px; }
body { margin: 0; background: var(--cream); color: var(--ink); font: 16.5px/1.62 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--ink); text-decoration-color: var(--orange); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--orange-ink); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--cream); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: baseline; gap: 18px; padding: 16px 32px; background: var(--ink); color: var(--cream); }
.brand { font: 900 21px/1 var(--sans); letter-spacing: -.02em; color: var(--cream); text-decoration: none; }
.brand i { color: var(--orange); font-style: normal; }
.tag { font: 400 12px var(--mono); color: #B9B3A7; }

.wrap { display: grid; grid-template-columns: 290px minmax(0, 1fr); max-width: 1280px; margin: 0 auto; }
.side { position: sticky; top: 56px; align-self: start; height: calc(100vh - 56px); overflow: auto; padding: 28px 20px 40px 28px; border-right: 2px solid var(--ink); }
.side ol { list-style: none; margin: 0; padding: 0; }
.side li.g { font: 700 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--orange-ink); margin: 22px 0 6px; }
.side li.g:first-child { margin-top: 0; }
.side li a { display: grid; grid-template-columns: 30px 1fr; padding: 5px 8px; margin-left: -8px; font-size: 14px; line-height: 1.3; text-decoration: none; border: 2px solid transparent; }
.side li a span { font: 700 12px/1.6 var(--mono); color: var(--muted); }
.side li a:hover { border-color: var(--ink); background: var(--paper); }
.side li.on a { background: var(--ink); color: var(--cream); box-shadow: 4px 4px 0 var(--orange); }
.side li.on a span { color: var(--orange); }

main { padding: 44px 56px 96px; max-width: 900px; }
.dh { display: grid; grid-template-columns: 96px 1fr; gap: 20px; padding-bottom: 22px; border-bottom: 3px solid var(--ink); margin-bottom: 26px; }
.dn { font: 900 64px/0.9 var(--sans); color: var(--orange); letter-spacing: -.04em; }
.dg { font: 700 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 6px; }
h1 { font: 800 clamp(30px, 3.4vw, 42px)/1.06 var(--sans); letter-spacing: -.025em; margin: 0; text-wrap: balance; }
.meta { font: 400 12.5px var(--mono); color: var(--muted); margin: 10px 0 0; }

.toc { background: var(--paper); border: 2px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); padding: 14px 20px; margin: 0 0 40px; }
.toc summary { font: 700 12px var(--mono); letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
.toc ol { list-style: none; columns: 2; column-gap: 28px; margin: 10px 0 0; padding-left: 0; font-size: 14.5px; }
.toc li { break-inside: avoid; margin: 3px 0; }

article h2 { font: 800 27px/1.15 var(--sans); letter-spacing: -.02em; margin: 56px 0 14px; padding-top: 16px; border-top: 2px solid var(--ink); text-wrap: balance; }
article h3 { font: 700 20px/1.25 var(--sans); margin: 34px 0 10px; }
article h4 { font: 700 13px var(--mono); letter-spacing: .06em; text-transform: uppercase; margin: 26px 0 8px; color: var(--muted); }
article p, article li { max-width: 72ch; }
article ul, article ol { padding-left: 22px; }
article li { margin: 5px 0; }
article li::marker { color: var(--orange-ink); font-weight: 700; }
article blockquote { margin: 22px 0; padding: 14px 20px; background: #FFE9DE; border-left: 5px solid var(--orange); }
article blockquote p { margin: 0; }
article hr { border: 0; border-top: 2px dashed var(--rule); margin: 40px 0; }

code { font: 400 .86em/1.5 var(--mono); background: #E7E2D7; padding: 1px 5px; border-radius: 2px; overflow-wrap: anywhere; }
pre { background: var(--ink); color: #EDE8DD; padding: 18px 20px; margin: 22px 0; overflow: auto; box-shadow: 6px 6px 0 var(--orange); }
pre code { background: none; padding: 0; color: inherit; font-size: 13.5px; overflow-wrap: normal; }

.table-wrap, article table { display: block; overflow-x: auto; }
article table { border-collapse: collapse; margin: 22px 0 30px; font-size: 14px; line-height: 1.45; background: var(--paper); border: 2px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); max-width: 100%; }
article th { text-align: left; background: var(--ink); color: var(--cream); font: 700 11.5px var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 10px 12px; vertical-align: bottom; }
article td { padding: 9px 12px; border-top: 1px solid var(--rule); vertical-align: top; min-width: 90px; }
article td code { font-size: 12.5px; }

figure.diagram { margin: 30px 0; padding: 22px; background: var(--paper); border: 2px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); }
figure.diagram img { display: block; max-width: 100%; height: auto; margin: 0 auto; }

.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 70px; }
.pager a { display: block; padding: 16px 18px; border: 2px solid var(--ink); background: var(--paper); text-decoration: none; font-weight: 700; box-shadow: 5px 5px 0 var(--ink); transition: transform .12s ease, box-shadow .12s ease; }
.pager a:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 var(--orange); color: var(--ink); }
.pager a small { display: block; font: 700 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--orange-ink); margin-bottom: 4px; }
.pager .next { grid-column: 2; text-align: right; }

.hero { padding: 10px 0 34px; border-bottom: 3px solid var(--ink); }
.hero h1 { font-size: clamp(38px, 5vw, 60px); max-width: 15ch; }
.lede { font-size: 19px; max-width: 58ch; margin: 18px 0 0; }
.list h2 { font: 700 12px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--orange-ink); margin: 40px 0 10px; }
.row { display: grid; grid-template-columns: 52px 1fr auto; gap: 14px; align-items: baseline; padding: 14px 6px; border-bottom: 2px solid var(--ink); text-decoration: none; }
.row .n { font: 900 22px var(--sans); color: var(--orange); }
.row .t { font: 700 18px/1.3 var(--sans); }
.row .w { font: 400 12px var(--mono); color: var(--muted); }
.row:hover { background: var(--ink); color: var(--cream); }
.row:hover .w { color: #B9B3A7; }

@media (max-width: 900px) {
  .wrap { grid-template-columns: minmax(0, 1fr); }
  .side { display: none; }
  .top .tag { display: none; }
  main { padding: 28px 20px 70px; }
  .dh { grid-template-columns: 1fr; gap: 6px; }
  .dn { font-size: 46px; }
  .toc ol { columns: 1; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; }
  .top { padding: 14px 20px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print {
  .top, .side, .pager, .skip { display: none; }
  .wrap { display: block; } main { padding: 0; max-width: none; }
  pre, article table, figure.diagram, .toc { box-shadow: none; }
}