/* Type and colour system: Newsreader (serif, titles and reading), Hanken Grotesk (sans, navigation, labels, tables),
   IBM Plex Mono (numbers, code). Warm paper, warm ink, one maroon accent. Light theme only, no JavaScript. */
:root {
  --paper: #f8f7f2; --ink: #33322e; --muted: #6f6d65; --muted-strong: #5f5d55; --faint: #97958c; --rule: #e3e0d5; --soft: #efede4; --maroon: #800000;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--serif); font-size: 1.0625rem; line-height: 1.72; -webkit-font-smoothing: antialiased; }
@media (min-width: 768px) { body { font-size: 1.125rem; } }
a { color: var(--maroon); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--maroon); outline-offset: 3px; border-radius: 2px; }
img, video { max-width: 100%; }
.skip { position: absolute; left: -999px; top: 0; background: var(--maroon); color: #fff; padding: 8px 12px; z-index: 9; font-family: var(--sans); }
.skip:focus { left: 8px; top: 8px; }
.bar { max-width: 72rem; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
@media (min-width: 768px) { .bar { padding-left: max(32px, env(safe-area-inset-left, 0px)); padding-right: max(32px, env(safe-area-inset-right, 0px)); } }

/* header and footer */
header.site { border-bottom: 1px solid var(--rule); }
header.site .bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 24px; padding-top: 14px; padding-bottom: 14px; }
.brand { font: 400 1.2rem/1 var(--serif); letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
header.site nav { display: flex; gap: 2px; flex-wrap: wrap; }
header.site nav a { font: 500 13.5px/1.2 var(--sans); padding: 7px 12px; border-radius: 999px; color: var(--muted); text-decoration: none; }
header.site nav a:hover { color: var(--ink); }
header.site nav a[aria-current="page"] { background: var(--soft); color: var(--ink); }
footer.site { margin-top: 96px; border-top: 1px solid var(--rule); font: 400 13px/1.5 var(--sans); color: var(--muted); }
footer.site .bar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px; padding-top: 22px; padding-bottom: 40px; }
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--maroon); }
main { padding: 44px 0 0; }
@media (min-width: 768px) { main { padding-top: 64px; } }
.col { max-width: 48rem; margin: 0 auto; }

/* page headers (centred, like a magazine) */
.eyebrow { font: 600 11.5px/1.2 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; }
.page-head { max-width: 48rem; margin: 0 auto 48px; text-align: center; }
.page-head h1, .post-head h1 { font-family: var(--serif); font-weight: 300; font-size: 2.35rem; line-height: 1.08; letter-spacing: -0.02em; margin: 14px 0 0; text-wrap: balance; }
@media (min-width: 768px) { .page-head h1, .post-head h1 { font-size: 3.4rem; } }
.subtitle { max-width: 42rem; margin: 22px auto 0; font-size: 1.15rem; line-height: 1.55; color: var(--muted); }
@media (min-width: 768px) { .subtitle { font-size: 1.25rem; } }
.hero-text p { margin: 0 0 14px; }
.links { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 22px; margin: 22px 0 0; font: 500 14px/1.4 var(--sans); }
.links a { text-decoration: none; }
.links a:hover { text-decoration: underline; }

/* post lists: number, title, model tag, arrow */
.rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.row { display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; column-gap: 14px; align-items: start; padding: 20px 0; border-bottom: 1px solid var(--rule); color: inherit; text-decoration: none; }
.row .num { font: 400 12.5px/2.2 var(--mono); font-variant-numeric: tabular-nums; color: var(--muted); }
.row .title { margin: 0; font: 400 1.12rem/1.3 var(--serif); letter-spacing: -0.005em; color: var(--ink); text-wrap: balance; }
@media (min-width: 768px) { .row .title { font-size: 1.25rem; } }
.row .desc { display: block; margin-top: 6px; font: 400 15px/1.5 var(--sans); color: var(--muted); }
.row .meta { display: block; margin-top: 6px; font: 400 12.5px/1.4 var(--sans); color: var(--muted); }
.row .end { display: flex; align-items: center; gap: 10px; padding-top: 4px; }
.tag { font: 600 10.5px/1 var(--sans); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-strong); border: 1px solid var(--rule); border-radius: 999px; padding: 5px 9px; white-space: nowrap; }
.arrow { font: 400 16px/1 var(--sans); color: var(--faint); transition: transform 0.15s ease, color 0.15s ease; }
.row:hover .title, .row:hover .num { color: var(--maroon); }
.row:hover .arrow { color: var(--maroon); transform: translateX(2px); }
@media (max-width: 560px) { .row { grid-template-columns: 2rem minmax(0, 1fr); } .row .end { grid-column: 2; padding-top: 10px; } }
.sec { margin: 56px 0 18px; }
.more { margin: 22px 0 0; font: 500 14px/1.4 var(--sans); }
.more a { text-decoration: none; }
.more a:hover { text-decoration: underline; }

/* a post */
.post-head { max-width: 48rem; margin: 0 auto 56px; text-align: center; }
.post-head .kicker { font: 600 11.5px/1.3 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 0; }
.byline { margin: 24px 0 0; font: 400 13.5px/1.4 var(--sans); color: var(--muted); }
.post-layout { display: grid; grid-template-columns: minmax(0, 42rem); justify-content: center; gap: 0 56px; }
@media (min-width: 1100px) { .post-layout { grid-template-columns: 13.5rem minmax(0, 42rem); } .post-layout.no-toc { grid-template-columns: minmax(0, 42rem); } }
.toc { margin: 0 0 40px; font-family: var(--sans); }
@media (min-width: 1100px) { .toc { position: sticky; top: 28px; align-self: start; margin: 0; } }
.toc h2 { font: 600 11.5px/1.2 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.toc li { margin: 0; }
.toc a { display: block; padding: 6px 0 6px 12px; font-size: 13px; line-height: 1.4; color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--maroon); }
.body h2 { font: 400 1.6rem/1.2 var(--serif); letter-spacing: -0.01em; margin: 2.6em 0 0.6em; text-wrap: balance; scroll-margin-top: 24px; }
.body h2:first-child { margin-top: 0; }
.body h3 { font: 400 1.25rem/1.3 var(--serif); margin: 2em 0 0.4em; }
.body p { margin: 0 0 1.15em; }
.body ul, .body ol { margin: 0 0 1.3em; padding-left: 1.4em; }
.body li { margin: 0 0 0.45em; }
.body ol li::marker { color: var(--maroon); font-family: var(--mono); font-size: 0.85em; }
.body ul li::marker { color: var(--faint); }
.body strong { font-weight: 600; }
.body code { font: 400 0.86em var(--mono); background: var(--soft); padding: 0.1em 0.35em; border-radius: 3px; overflow-wrap: anywhere; }
.body blockquote { margin: 1.8em 0; padding: 0.1em 0 0.1em 1.2em; border-left: 2px solid var(--rule); color: var(--muted-strong); font-style: italic; }
.body blockquote p { margin: 0; }
.tablewrap { overflow-x: auto; margin: 2rem 0; }
.body table { border-collapse: collapse; width: 100%; min-width: 34rem; font: 400 14px/1.5 var(--sans); }
.body th { text-align: left; font: 600 11.5px/1.3 var(--sans); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-strong); padding: 0 14px 10px 0; border-bottom: 1px solid var(--ink); vertical-align: bottom; }
.body td { padding: 11px 14px 11px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
figure.media { margin: 2.4rem 0; }
figure.media video, figure.media img { display: block; margin: 0 auto; max-width: 100%; height: auto; max-height: min(78vh, 760px); border: 1px solid var(--rule); border-radius: 3px; background: #fff; }
figure.media figcaption { max-width: 36rem; margin: 0.8rem auto 0; text-align: center; font: italic 400 13px/1.5 var(--sans); color: var(--muted); }
.pn { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; max-width: 48rem; margin: 72px auto 0; }
.pn a { display: block; padding: 16px 18px; border: 1px solid var(--rule); border-radius: 4px; text-decoration: none; color: var(--ink); min-width: 0; }
.pn a:hover { border-color: var(--maroon); }
.pn small { display: block; font: 600 10.5px/1.2 var(--sans); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.pn span { font: 400 1.02rem/1.35 var(--serif); }
.pn a:hover span { color: var(--maroon); }
.pn .next { text-align: right; grid-column: 2; }
.pn .prev { grid-column: 1; }
.back { display: inline-block; margin: 0 0 28px; font: 500 13.5px/1.2 var(--sans); text-decoration: none; }
.back:hover { text-decoration: underline; }
.wide { max-width: 72rem; margin: 0 auto; }
.crumbs { max-width: 48rem; margin: 0 auto 26px; font: 400 13px/1.4 var(--sans); color: var(--muted); text-align: center; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 0; }
.crumbs li + li::before { content: "/"; margin: 0 0.6em; color: var(--faint); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--maroon); }
.crumbs [aria-current] { color: var(--ink); }
.part-of { margin: 10px 0 0; font: 400 13.5px/1.4 var(--sans); color: var(--muted); }
.part-of a { color: var(--maroon); }
.sec-head { font: 600 11.5px/1.2 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 48px 0 12px; }
.sec-head:first-child { margin-top: 0; }
.row.sub { margin-left: 1.6rem; }
@media (max-width: 560px) { .row.sub { margin-left: 0.6rem; } }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 16px; }
.card { display: block; padding: 22px 22px 20px; border: 1px solid var(--rule); border-radius: 4px; background: #fbfaf6; color: inherit; text-decoration: none; }
.card:hover { border-color: var(--maroon); }
.card .title { margin: 14px 0 0; font: 400 1.35rem/1.25 var(--serif); letter-spacing: -0.01em; color: var(--ink); text-wrap: balance; }
.card:hover .title { color: var(--maroon); }
.card .desc { margin: 10px 0 0; font: 400 15px/1.5 var(--sans); color: var(--muted); }
.card .meta { margin: 14px 0 0; font: 600 11.5px/1.2 var(--sans); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-strong); }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print { header.site nav, .pn, footer.site, .toc { display: none; } body { background: #fff; } }