:root{
  --field:#101E29; --field-2:#182C3A;
  --paper:#F5F7F7; --paper-2:#EDF1F1; --white:#FFFFFF;
  --ink:#16212A; --ink-2:#54646E; --ink-3:#7C8C95;
  --inv:#E9EEF0; --inv-2:#9BB0BA; --inv-3:#6D8492;
  --rule:#DBE1E3; --rule-2:#C6CFD2; --rule-inv:#283D4C;
  --accent:#8A5220;            /* small copper text on light — AA */
  --accent-inv:#D89A62;        /* copper on the navy field */
  --serif:"Newsreader",Iowan Old Style,Palatino,Georgia,serif;
  --sans:"Public Sans",-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica Neue,Arial,sans-serif;
  --measure:64ch;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;font-synthesis-weight:none}
img{max-width:100%}
a{color:inherit}
::selection{background:#D6C0A8;color:#101E29}

/* ── the measure grid: prose in 1-7, notes in 9-12 ───────────── */
.wrap{max-width:1220px;margin:0 auto;padding:0 clamp(20px,5vw,64px)}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:0 clamp(20px,3vw,42px)}
.col-main{grid-column:1/8;min-width:0}
.col-note{grid-column:9/13;min-width:0}
@media(max-width:900px){.col-main,.col-note{grid-column:1/-1}.col-note{margin-top:2rem}}

/* ── type ────────────────────────────────────────────────────── */
h1,h2,h3{font-family:var(--serif);font-weight:500;margin:0;letter-spacing:-.014em;text-wrap:balance}
h1{font-size:clamp(2.15rem,4.4vw,3.5rem);line-height:1.08;letter-spacing:-.022em}
h2{font-size:clamp(1.6rem,2.6vw,2.15rem);line-height:1.18}
h3{font-size:1.16rem;line-height:1.3;font-weight:600}
p{margin:0;max-width:var(--measure)}
.lede{font-family:var(--serif);font-size:clamp(1.12rem,1.5vw,1.28rem);line-height:1.56;max-width:56ch}
.small{font-size:.92rem;line-height:1.6;color:var(--ink-2)}
.num{font-variant-numeric:tabular-nums}
b,strong{font-weight:600}

/* section label — sentence case, no mono, no wide tracking */
.lbl{font-family:var(--sans);font-size:.8rem;font-weight:600;letter-spacing:.02em;
  color:var(--ink-3);margin:0 0 .9rem;display:block}
.lbl .n{color:var(--accent);font-variant-numeric:tabular-nums;margin-right:.6rem}

section{padding:clamp(3.6rem,7vw,6.5rem) 0}
section + section{padding-top:0}
.sec-gap{padding-top:clamp(3.6rem,7vw,6.5rem)}

/* ── header ──────────────────────────────────────────────────── */
header.site{background:var(--field);color:var(--inv);position:relative;z-index:5}
header.site .bar{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
  padding:1.15rem 0;border-bottom:1px solid var(--rule-inv)}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--inv)}
.brand .mk{width:26px;height:26px;flex:none}
.brand .wm{font-family:var(--serif);font-size:1.14rem;font-weight:600;letter-spacing:-.01em;line-height:1}
.brand .wm span{display:block;font-family:var(--sans);font-size:.6rem;font-weight:500;
  letter-spacing:.16em;color:var(--inv-2);margin-top:.22rem}
nav.main{display:flex;gap:1.7rem;font-size:.95rem}
nav.main a{color:var(--inv-2);text-decoration:none;padding:.2rem 0;border-bottom:1px solid transparent}
nav.main a:hover{color:var(--inv);border-bottom-color:var(--accent-inv)}
nav.main a:focus-visible,.brand:focus-visible{outline:2px solid var(--accent-inv);outline-offset:4px}
.navcta{font-family:var(--sans);font-size:.9rem;font-weight:600;color:#fff;text-decoration:none;
  background:var(--accent);padding:.62rem 1.05rem;border-radius:2px;white-space:nowrap;
  letter-spacing:.005em;transition:background .15s ease}
.navcta:hover{background:#74441B;color:#fff}
.navcta:focus-visible{outline:2px solid var(--accent-inv);outline-offset:3px}
@media(max-width:960px){.navcta{padding:.5rem .7rem;font-size:.78rem}}
.burger{display:none;background:none;border:1px solid var(--rule-inv);color:var(--inv);
  padding:.45rem .6rem;cursor:pointer;border-radius:2px}
@media(max-width:860px){
  nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:var(--field);
    flex-direction:column;gap:0;padding:0 clamp(20px,5vw,64px) 1.2rem;border-bottom:1px solid var(--rule-inv)}
  nav.main.open{display:flex}
  nav.main a{padding:.75rem 0;border-bottom:1px solid var(--rule-inv)}
  .burger{display:block}
}
@media(max-width:420px){.brand .wm span{display:none}.navcta{padding:.45rem .6rem;font-size:.74rem}header.site .bar{gap:.8rem}}


footer.site{background:var(--field);color:var(--inv-2);padding:3rem 0 2.4rem;font-size:.9rem}
footer.site .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:1.8rem 2.4rem;padding-bottom:2rem;border-bottom:1px solid var(--rule-inv)}
footer.site b{display:block;color:var(--inv);font-size:.82rem;font-weight:600;margin-bottom:.7rem}
footer.site a{display:block;color:var(--inv-2);text-decoration:none;padding:.22rem 0}
footer.site a:hover{color:var(--accent-inv)}
footer.site .base{display:flex;flex-wrap:wrap;gap:.6rem 1.6rem;justify-content:space-between;
  padding-top:1.4rem;font-size:.82rem;color:var(--inv-3)}
.skip{position:absolute;left:-9999px}
.skip:focus{position:static;display:inline-block;padding:.6rem 1rem;background:var(--accent);color:#fff}

/* Blog layout on the homepage's exact type, color, spacing, and navigation. */
nav.main a[aria-current="page"]{color:var(--inv);border-bottom-color:var(--accent-inv)}
a:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
footer.site a:focus-visible{outline-color:var(--accent-inv)}
.insights-intro{padding:clamp(3.4rem,7vw,6.2rem) 0 clamp(2.6rem,5vw,4rem)}
.insights-intro h1{max-width:23ch;font-size:clamp(2.2rem,4.6vw,3.7rem)}
.insights-intro .lede{margin-top:1.5rem;color:var(--ink-2);max-width:48ch}
.post-section{padding:0 0 clamp(2.6rem,5vw,4rem)}
.post-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--rule-2)}
.post-row{display:grid;grid-template-columns:130px minmax(0,1fr) 70px;gap:clamp(1.2rem,3vw,3rem);align-items:baseline;padding:2.2rem 0;border-bottom:1px solid var(--rule)}
.post-row time{font-size:.86rem;color:var(--ink-2);font-variant-numeric:tabular-nums}
.post-row h2{font-size:clamp(1.6rem,2.4vw,2rem);line-height:1.2;max-width:31ch}
.post-row h2 a{text-decoration:none}
.post-row h2 a:hover{color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}
.post-row p{font-size:.98rem;line-height:1.65;color:var(--ink-2);margin-top:.9rem;max-width:60ch}
.post-row .read{font-size:.93rem;font-weight:600;color:var(--accent);text-decoration:none;white-space:nowrap;padding:.5rem 0}
.post-row .read:hover{text-decoration:underline;text-underline-offset:.2em}
.index-next{padding-bottom:clamp(3.6rem,7vw,6.5rem);font-size:.96rem;color:var(--ink-2)}
.index-next a{color:var(--accent);text-underline-offset:.2em}
.article-intro{padding-top:clamp(2.8rem,6vw,5rem);padding-bottom:2.3rem}
.back{display:inline-block;font-size:.9rem;color:var(--ink-2);text-decoration:none;border-bottom:1px solid var(--rule-2);margin-bottom:2.2rem;padding:.2rem 0}
.back:hover{color:var(--accent);border-color:var(--accent)}
.article-intro h1{max-width:25ch;font-size:clamp(2.2rem,4.2vw,3.5rem);line-height:1.1}
.article-meta{margin-top:1.4rem;font-size:.86rem;color:var(--ink-2)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:clamp(2rem,5vw,5rem);padding-bottom:clamp(3.6rem,7vw,6.5rem)}
.article-prose{min-width:0;border-top:1px solid var(--rule-2);padding-top:2rem;font-size:1.02rem;line-height:1.8}
.article-prose>p:first-of-type{font-family:var(--serif);font-size:1.35rem;line-height:1.55;color:var(--ink)}
.article-prose p{max-width:none}
.article-prose p+p{margin-top:1.2rem}
.article-prose h2{font-size:clamp(1.7rem,2.5vw,2.1rem);margin:2.7rem 0 1.1rem;scroll-margin-top:1.5rem}
.article-prose h3{font-size:1.36rem;margin:1.8rem 0 .8rem}
.article-prose ul,.article-prose ol{padding-left:1.35rem;margin:1.2rem 0}
.article-prose li{padding-left:.2rem;margin:.8rem 0}
.article-prose a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:.2em}
.article-prose blockquote{margin:2rem 0;padding:1.3rem 1.5rem;background:var(--paper-2);border-left:2px solid var(--accent);font-size:.96rem;line-height:1.7}
.article-prose blockquote ul{margin-bottom:0}
.article-figure{margin:0 0 2rem}
.article-figure img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.article-back{margin-top:3rem;padding-top:1.3rem;border-top:1px solid var(--rule)}
.article-notes{border-top:1px solid var(--rule-2);padding-top:2rem}
.contents{position:sticky;top:2rem}
.contents h2{font-family:var(--sans);font-size:.8rem;font-weight:600;color:var(--ink-3);margin-bottom:1rem;letter-spacing:.02em}
.contents ol{list-style:none;padding:0;margin:0}
.contents li+li{margin-top:.65rem}
.contents a{display:block;font-size:.85rem;line-height:1.5;color:var(--ink-2);text-decoration:none;padding:.2rem 0}
.contents a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:.2em}
@media(max-width:1000px){.article-layout{grid-template-columns:minmax(0,1fr) 205px;gap:2rem}}
@media(max-width:760px){
  .post-row{grid-template-columns:1fr;gap:.7rem;padding:1.8rem 0}
  .post-row h2{max-width:none}
  .post-row p{margin-top:.75rem}
  .post-row .read{justify-self:start}
  .article-layout{grid-template-columns:1fr}
  .article-notes{padding-top:1.4rem}
  .contents{position:static}
  .contents ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.25rem 1.25rem}
  .contents li+li{margin:0}
  .article-prose{padding-top:1.5rem}
}
@media(max-width:860px){
  header.site .bar{padding-inline:20px}
  .burger{display:none;min-width:44px;min-height:44px;align-items:center;justify-content:center}
  .js .burger{display:flex}
  html:not(.js) header.site .bar{flex-wrap:wrap}
  html:not(.js) nav.main{display:flex;position:static;flex-basis:100%;order:4;padding:0;border:0}
  html:not(.js) nav.main a:last-child{border-bottom:0}
}
@media(max-width:420px){
  .article-intro{padding-bottom:1.8rem}
  .article-intro h1{font-size:2.2rem}
  .contents ol{grid-template-columns:1fr}
  .article-prose blockquote{padding:1rem}
}

.table-scroll{max-width:100%;overflow-x:auto;margin:1.5rem 0}.table-scroll table{border-collapse:collapse;width:100%;font-size:.9rem}.table-scroll th,.table-scroll td{text-align:left;vertical-align:top;border-bottom:1px solid var(--rule);padding:.6rem .8rem;min-width:100px}.table-scroll th{font-weight:600}.article-prose pre{overflow-x:auto;max-width:100%;font-size:.88rem;padding:1rem;background:var(--paper-2)}