@font-face{font-family:Geist;src:url(/assets/fonts/geist.woff2) format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"Fragment Mono";src:url(/assets/fonts/fragment-mono.woff2) format("woff2");font-display:swap}
@font-face{font-family:"Fragment Mono";src:url(/assets/fonts/fragment-mono-ext.woff2) format("woff2");font-display:swap;unicode-range:U+0100-02AF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  --bg:#F5F3EF;--fg:#191615;
  --fg70:rgba(25,22,21,.70);--fg55:rgba(25,22,21,.55);--fg40:rgba(25,22,21,.40);--fg30:rgba(25,22,21,.30);--fg12:rgba(25,22,21,.12);--fg06:rgba(25,22,21,.05);
  --on-dark:#F5F3EF;--on-dark70:rgba(245,243,239,.70);--on-dark55:rgba(245,243,239,.55);--on-dark15:rgba(245,243,239,.15);
  --sans:Geist,Inter,system-ui,-apple-system,sans-serif;
  --mono:"Fragment Mono","Geist Mono",ui-monospace,monospace;
  --gap:20px;--max:1280px;--pad:48px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{background:var(--bg);color:var(--fg);font-family:var(--sans);font-weight:400;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-feature-settings:"ss01" 0}
img,svg{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--fg);color:var(--bg)}
:focus-visible{outline:1.5px solid var(--fg);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--gap)}
.dot{padding:0 .5em;color:var(--fg30)}

/* ---------- header ---------- */
header.chrome{position:sticky;top:0;z-index:20;background:rgba(245,243,239,.86);backdrop-filter:saturate(1.2) blur(12px);-webkit-backdrop-filter:saturate(1.2) blur(12px);border-bottom:.75pt solid var(--fg12)}
.bar{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.logo{height:24px;width:auto}
.brand-sep{width:1px;height:18px;background:var(--fg12)}
.brand-labs{font-size:17px;letter-spacing:-.01em;color:var(--fg)}
nav{display:flex;align-items:center;gap:28px;font-size:14px;letter-spacing:-.005em}
nav a{color:var(--fg70);text-decoration:none;transition:color .2s var(--ease)}
nav a:hover,nav a[aria-current="page"]{color:var(--fg)}
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;background:var(--fg);color:var(--bg)!important;text-decoration:none;padding:11px 18px;font-size:14px;letter-spacing:-.005em;transition:opacity .2s var(--ease)}
.btn:hover{opacity:.86}

/* ---------- home ---------- */
.home-hero{padding:120px 0 72px}
.home-hero h1{grid-column:1/span 12;font-size:clamp(64px,11vw,156px);line-height:.84;letter-spacing:-.045em;font-weight:400;text-wrap:balance}
.home-hero .intro{grid-column:1/span 6;margin-top:40px;font-size:22px;line-height:1.2;letter-spacing:-.01em;color:var(--fg70);text-wrap:pretty}
.home-hero .intro a{text-decoration-color:var(--fg30);text-underline-offset:3px}

.featured{padding:8px 0 104px}
.feat{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--gap);text-decoration:none;color:inherit;border-top:.75pt solid var(--fg12);padding-top:var(--gap)}
.feat-cover{grid-column:1/span 7;overflow:hidden;background:var(--fg);aspect-ratio:1200/737}
.feat-cover svg,.post-cover svg,.thumb svg,.row-thumb svg{width:100%;height:100%;transition:transform .9s var(--ease)}
.feat:hover .feat-cover svg,.rel-card:hover .thumb svg,.row:hover .row-thumb svg{transform:scale(1.035)}
.feat-text{grid-column:8/span 5;display:flex;flex-direction:column;justify-content:flex-end;padding:8px 0 4px}
.feat-meta,.row-meta,.rel-meta{font-size:13px;color:var(--fg55)}
.feat h2{margin-top:16px;font-size:44px;line-height:.95;letter-spacing:-.02em;font-weight:400;text-wrap:balance}
.feat-lead{margin-top:20px;font-size:16px;line-height:1.55;color:var(--fg70);text-wrap:pretty}
.feat-cta{margin-top:28px;font-size:14px;color:var(--fg)}
.feat-cta span{display:inline-block;transition:transform .3s var(--ease)}
.feat:hover .feat-cta span{transform:translateX(4px)}

.all{padding:0 0 120px}
.all-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:.75pt solid var(--fg12);padding-bottom:16px}
.all-head h2{font-size:40px;line-height:.95;letter-spacing:-.02em;font-weight:400}
.count{font-size:13px;color:var(--fg55)}
.rows{list-style:none}
.rows li{border-bottom:.75pt solid var(--fg12)}
.row{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--gap);padding:32px 0;text-decoration:none;color:inherit;align-items:start}
.row-date{grid-column:1/span 2;font-size:13px;line-height:1.6;color:var(--fg55);padding-top:6px}
.row-text{grid-column:3/span 6}
.row-text h3{font-size:28px;line-height:1.02;letter-spacing:-.015em;font-weight:400;text-wrap:balance;transition:color .2s var(--ease)}
.row-text>p:not(.row-meta){margin-top:12px;font-size:15px;line-height:1.55;color:var(--fg55);text-wrap:pretty;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-meta{margin-top:14px}
.row-thumb{grid-column:10/span 3;overflow:hidden;aspect-ratio:1200/737;background:var(--fg)}
.rows .row:hover h3{color:var(--fg70)}

/* ---------- post ---------- */
.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:30;pointer-events:none}
.progress span{display:block;height:100%;width:100%;background:var(--fg);transform-origin:0 50%;transform:scaleX(0)}
.post-hero{padding:72px 0 56px}
.back{grid-column:1/span 12;font-size:14px;color:var(--fg55);text-decoration:none;margin-bottom:56px;width:max-content;transition:color .2s var(--ease)}
.back:hover{color:var(--fg)}
.post-hero h1{grid-column:1/span 10;font-size:clamp(48px,6.6vw,88px);line-height:.9;letter-spacing:-.035em;font-weight:400;text-wrap:balance}
.post-hero .intro{grid-column:1/span 7;margin-top:36px;font-size:22px;line-height:1.22;letter-spacing:-.01em;color:var(--fg70);text-wrap:pretty}
.post-hero .meta{grid-column:1/span 12;margin-top:36px;font-size:13px;color:var(--fg55)}
.post-cover{overflow:hidden;background:var(--fg);aspect-ratio:1200/560}
.post-cover svg{object-fit:cover}
.post-grid{padding-top:88px;padding-bottom:112px;align-items:start}
.toc{grid-column:1/span 3;position:sticky;top:120px;padding-right:16px}
.toc-label{font-size:13px;color:var(--fg)}
.toc ol{list-style:none;margin-top:14px;border-left:.75pt solid var(--fg12)}
.toc li a{display:block;padding:6px 0 6px 14px;margin-left:-.75pt;border-left:1.5px solid transparent;font-size:13px;line-height:1.4;color:var(--fg55);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease)}
.toc li a:hover{color:var(--fg)}
.toc li a.on{color:var(--fg);border-left-color:var(--fg)}

.prose{grid-column:4/span 7;font-size:17px;line-height:1.62;color:var(--fg70)}
.prose>*+*{margin-top:20px}
.prose p{text-wrap:pretty;orphans:2;widows:2}
.prose h2{margin-top:80px;font-size:36px;line-height:1;letter-spacing:-.02em;font-weight:400;color:var(--fg);text-wrap:balance}
.prose h2+*{margin-top:22px}
.prose h3{margin-top:44px;font-size:19px;line-height:1.3;letter-spacing:-.01em;font-weight:400;color:var(--fg)}
.prose h3+*{margin-top:10px}
.prose a{color:var(--fg);text-decoration:underline;text-decoration-color:var(--fg30);text-decoration-thickness:1px;text-underline-offset:3px;transition:text-decoration-color .2s var(--ease)}
.prose a:hover{text-decoration-color:var(--fg)}
.prose strong{font-weight:500;color:var(--fg)}
.prose em{font-style:italic}
.prose ul{list-style:square;padding-left:20px}
.prose ul li{padding-left:4px}
.prose li+li{margin-top:10px}
.prose li::marker{color:var(--fg40)}
.prose code,.prose pre{font-variant-ligatures:none;font-feature-settings:"liga" 0,"calt" 0}
.prose code{font-family:var(--mono);font-size:.84em;color:var(--fg);background:var(--fg06);padding:.12em .32em}

/* in-short / note boxes: thin rules, no fills */
.prose .tldr,.prose .note{border-top:.75pt solid var(--fg);border-bottom:.75pt solid var(--fg12);padding:22px 0 24px}
.prose .tldr{margin-top:36px}
.prose .box-label{font-size:13px;color:var(--fg);margin-bottom:12px}
.prose .tldr ul{font-size:16px}
.prose .note p:not(.box-label){font-size:16px}

/* figures break out of the text column */
.prose .fig{margin-top:44px;margin-bottom:8px}
.prose .fig.wide{margin-right:calc((100% + var(--gap)) * -2 / 7)}
.prose .fig .frame{border:.75pt solid var(--fg12);background:#FAF9F6;padding:12px;display:flex;justify-content:center}
.prose .fig img{width:auto;max-width:100%;max-height:680px;height:auto;border:.75pt solid var(--fg12);background:#fff}
.prose .fig.dia .frame{padding:0;background:transparent}
.prose .fig.dia svg{width:100%;height:auto}
.prose .fig.narrow .frame{max-width:560px}
.prose figcaption{margin-top:12px;font-size:13px;line-height:1.5;color:var(--fg55);text-wrap:pretty}

/* tables */
.prose table.spec{width:100%;border-collapse:collapse;font-size:15px;line-height:1.45;margin-top:32px}
.prose .spec th{text-align:left;font-weight:500;font-size:12px;color:var(--fg);padding:0 16px 10px 0;border-bottom:.75pt solid var(--fg12)}
.prose .spec td{padding:12px 16px 12px 0;border-bottom:.4pt solid var(--fg12);vertical-align:top;color:var(--fg70)}
.prose .spec td:first-child{color:var(--fg)}

/* code */
.prose .code{margin-top:28px;background:var(--fg);color:var(--on-dark)}
.prose .codehead{display:flex;justify-content:space-between;padding:12px 20px;border-bottom:.75pt solid var(--on-dark15);font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--on-dark55)}
.prose .code pre{margin:0;font-family:var(--mono);font-size:13px;line-height:1.7;padding:18px 20px 20px;overflow:auto;white-space:pre;color:var(--on-dark70);tab-size:2}
.prose .code pre .k{color:var(--on-dark)}
.prose .code pre .s{color:#D6D3CE}
.prose .code pre .c{color:var(--on-dark55)}

/* stats + callout (evals post) */
.prose .stats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin:0 0 56px}
.prose .stat{border-top:.75pt solid var(--fg);padding-top:14px}
.prose .stat .n{font-size:44px;line-height:.95;letter-spacing:-.025em;color:var(--fg)}
.prose .stat .l{margin-top:10px;font-size:13px;line-height:1.45;color:var(--fg55)}
.prose .callout{margin:40px 0 0 10%;font-size:24px;line-height:1.2;letter-spacing:-.01em;color:var(--fg)}
.prose .callout p{color:var(--fg)}

/* related */
.related{border-top:.75pt solid var(--fg12);padding:72px 0 120px}
.related-title{font-size:40px;line-height:.95;letter-spacing:-.02em;font-weight:400}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);margin-top:40px}
.rel-card{display:block;text-decoration:none;color:inherit}
.thumb{overflow:hidden;background:var(--fg);aspect-ratio:1200/737}
.rel-meta{margin-top:16px}
.rel-card h3{margin-top:8px;font-size:22px;line-height:1.08;letter-spacing:-.01em;font-weight:400;text-wrap:balance;transition:color .2s var(--ease)}
.rel-card:hover h3{color:var(--fg70)}

/* ---------- closer + footer ---------- */
.closer{background:var(--fg);color:var(--on-dark);padding:120px 0 128px}
.closer-lines{grid-column:1/span 10;font-size:clamp(36px,4.6vw,64px);line-height:.95;letter-spacing:-.03em;text-wrap:balance}
.closer-lines .dim{color:var(--on-dark55)}
.closer-actions{grid-column:1/span 12;margin-top:48px;display:flex;align-items:center;gap:28px;font-size:14px}
.btn-light{background:var(--on-dark);color:var(--fg)!important}
.link-light{color:var(--on-dark70);text-decoration:underline;text-decoration-color:var(--on-dark15);text-underline-offset:3px}
.link-light:hover{color:var(--on-dark)}
.chrome-foot{background:var(--fg);color:var(--on-dark55);font-size:12px}
.chrome-foot .wrap{display:flex;justify-content:space-between;border-top:.75pt solid var(--on-dark15);padding-top:10px;padding-bottom:14px}
.chrome-foot a{text-decoration:none}
.chrome-foot a:hover{color:var(--on-dark)}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,.js .reveal{transition:none!important;transform:none!important;opacity:1!important}}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .toc{display:none}
  .prose{grid-column:2/span 10}
  .prose .fig.wide{margin-left:0;margin-right:0}
}
@media (max-width:820px){
  :root{--pad:22px}
  nav .ext,nav a[href="/feed.xml"],nav a[href="/"]{display:none}
  .bar{height:60px}
  .logo{height:20px}
  .brand{gap:10px}
  .brand-labs{font-size:15px}
  .btn{padding:9px 14px;font-size:13px;white-space:nowrap}
  .home-hero{padding:72px 0 48px}
  .home-hero .intro,.post-hero .intro{grid-column:1/-1;font-size:19px}
  .feat-cover,.feat-text{grid-column:1/-1}
  .feat-text{padding-top:20px}
  .feat h2{font-size:34px}
  .row{padding:24px 0}
  .row-date{grid-column:1/-1;padding:0 0 6px}
  .row-text{grid-column:1/-1}
  .row-thumb{display:none}
  .row-text h3{font-size:24px}
  .post-hero{padding:44px 0 36px}
  .back{margin-bottom:32px}
  .post-hero h1{grid-column:1/-1}
  .post-cover{aspect-ratio:1200/737}
  .post-grid{padding-top:56px;padding-bottom:80px}
  .prose{grid-column:1/-1;font-size:16.5px}
  .prose h2{font-size:30px;margin-top:64px}
  .prose .stats{grid-template-columns:1fr}
  .prose .callout{margin-left:0}
  .rel-grid{grid-template-columns:1fr;gap:40px}
  .closer{padding:88px 0 96px}
  .closer-lines{grid-column:1/-1}
  .closer-actions{flex-wrap:wrap}
  .all-head h2,.related-title{font-size:32px}
}
@media print{header.chrome,.progress,.toc,.related,.closer{display:none}.prose{grid-column:1/-1}}