:root{
  --paper:#eef2e3;
  --paper-stripe:#e0e9cf;
  --paper-deep:#e5ebd7;
  --panel:#f6f8ef;
  --ink:#20241a;
  --ink-dim:#565f49;
  --ink-faint:#8b9478;
  --rule:#c7d3b3;
  --rule-strong:#a7ba8e;
  --stamp:#a23c28;
  --stamp-dim:#c98a78;
  --stamp-bg:#f4e2dc;
  --gold:#7d5f18;
  --gold-bg:#efe3c0;
  --you:#1c4d86;
  --you-bg:#dbe6f2;
  --white:#fbfbf6;
  --shadow:0 12px 28px rgba(32,36,26,.14);
  --radius:2px;
  --focus:#1c4d86;
}

*{box-sizing:border-box}
html{background:var(--paper)}
html.no-js .js-only{display:none}
html.js .no-js-only{display:none}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Noto Serif",Georgia,"Times New Roman",serif;
  font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  background-image:repeating-linear-gradient(
    180deg, var(--paper-stripe) 0, var(--paper-stripe) 1px, transparent 1px, transparent 25px
  );
  background-attachment:local;
}
::selection{background:var(--gold-bg);color:var(--ink)}
a{color:var(--you)}
a:hover{color:var(--stamp)}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

.mono{font-family:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}
.display,h1,h2,h3{font-family:"Courier Prime","Courier New",monospace;font-weight:700;letter-spacing:-.01em}

.wrap{max-width:940px;margin:0 auto;padding:0 1.5rem}

/* ---------- topbar ---------- */
.topbar{
  position:relative;z-index:5;
  border-bottom:2px solid var(--ink);
  background:var(--white);
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:.85rem;padding-bottom:.85rem;gap:1rem}
.brandmark{
  font-family:"Courier Prime",monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-dim);font-weight:700;
}
.langlinks{display:flex;gap:.5rem;font-family:"JetBrains Mono",monospace;font-size:.76rem;letter-spacing:.04em}
.langlinks a{padding:.28rem .55rem;border:1px solid var(--rule-strong);border-radius:var(--radius);color:var(--ink-dim);text-decoration:none}
.langlinks a[aria-current="page"]{color:var(--white);background:var(--ink);border-color:var(--ink)}
.langlinks a:hover{color:var(--ink)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:3.4rem 0 2.6rem;
  border-bottom:1px dashed var(--rule-strong);
}
.hero::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:1.1rem;pointer-events:none;
  background-image:radial-gradient(circle at 50% 10px, var(--paper) 3px, transparent 3.4px);
  background-size:100% 20px;
  opacity:.9;
}
.hero::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:1.1rem;pointer-events:none;
  background-image:radial-gradient(circle at 50% 10px, var(--paper) 3px, transparent 3.4px);
  background-size:100% 20px;
  opacity:.9;
}
.eyebrow{
  position:relative;font-family:"JetBrains Mono",monospace;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-dim);margin:0 0 1.1rem;display:flex;align-items:center;gap:.6rem
}
.eyebrow::before{content:"";width:1.6rem;height:2px;background:var(--stamp)}
h1{
  position:relative;margin:0 0 1.15rem;
  font-size:clamp(2rem, 5.4vw, 3.35rem);line-height:1.12;color:var(--ink);
  max-width:16ch;
}
h1 .accent{color:var(--stamp)}
.standfirst{
  position:relative;font-size:1.16rem;line-height:1.58;max-width:58ch;color:var(--ink);
  margin:0 0 2rem;font-family:"Noto Serif",serif;
}
.standfirst b{color:var(--ink);font-weight:700}

.statrow{position:relative;display:flex;flex-wrap:wrap;gap:0;border-top:2px solid var(--ink);margin-top:1.6rem}
.stat{flex:1 1 150px;padding:.9rem 1.2rem 0 0;border-right:1px dashed var(--rule-strong);min-width:150px}
.stat:last-child{border-right:none}
.stat .k{font-family:"JetBrains Mono",monospace;font-size:1.6rem;font-weight:700;color:var(--stamp);line-height:1.1}
.stat .l{font-size:.82rem;color:var(--ink-dim);margin-top:.35rem;max-width:22ch;font-family:"Noto Serif",serif}

/* ---------- sections ---------- */
section{padding:3.1rem 0}
.section-alt{background:var(--panel);border-top:1px dashed var(--rule-strong);border-bottom:1px dashed var(--rule-strong)}
.kicker{
  font-family:"JetBrains Mono",monospace;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--stamp);margin:0 0 .7rem;font-weight:700;
}
h2{font-size:clamp(1.5rem,3.1vw,1.95rem);line-height:1.22;margin:0 0 1rem;color:var(--ink);max-width:24ch}
.lede{font-size:1.07rem;max-width:64ch;color:var(--ink);margin:0 0 1.6rem}
p{margin:0 0 1.15rem;max-width:64ch}

/* ---------- ledger instrument ---------- */
.instrument{
  border:2px solid var(--ink);border-radius:var(--radius);
  background:var(--white);
  padding:1.5rem 1.5rem 1.5rem;box-shadow:var(--shadow);
}
.instrument-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap;margin-bottom:1rem;border-bottom:1px dashed var(--rule-strong);padding-bottom:.9rem}
.instrument-label{font-family:"JetBrains Mono",monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim)}
.instrument-year{font-family:"Courier Prime",monospace;font-weight:700;font-size:1.8rem;color:var(--ink)}

.scrubber{margin-bottom:1.2rem}
.scrubber input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:2px;background:var(--rule-strong);
  border-radius:2px;outline-offset:6px;
}
.scrubber input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;
  background:var(--stamp);border:2px solid var(--white);cursor:pointer;margin-top:-8px;
  box-shadow:0 0 0 1px var(--ink);
}
.scrubber input[type=range]::-moz-range-thumb{
  width:18px;height:18px;border-radius:50%;background:var(--stamp);border:2px solid var(--white);cursor:pointer;box-shadow:0 0 0 1px var(--ink);
}
.scrubber-labels{display:flex;justify-content:space-between;font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--ink-dim);margin-top:.4rem}

.you-input-row{display:flex;flex-wrap:wrap;align-items:center;gap:.7rem;margin-bottom:1.3rem;padding:.85rem .95rem;background:var(--you-bg);border:1px solid var(--you);border-radius:var(--radius)}
.you-input-row label{font-family:"JetBrains Mono",monospace;font-size:.86rem;color:var(--ink);font-weight:700}
.you-input-row .field{display:flex;align-items:center;gap:.4rem}
.you-input-row input[type=number]{
  width:8.5rem;padding:.4rem .5rem;border:1px solid var(--ink);border-radius:var(--radius);
  font-family:"JetBrains Mono",monospace;font-size:1rem;background:var(--white);color:var(--ink);
}
.you-input-row .unit{font-family:"JetBrains Mono",monospace;font-size:.82rem;color:var(--ink-dim)}
.you-result{font-family:"JetBrains Mono",monospace;font-size:.86rem;color:var(--you);flex:1 1 220px;min-width:220px}
.you-result b{color:var(--you)}

.ledger{position:relative}
.ledger-row{
  display:grid;grid-template-columns:1.9rem minmax(0,1fr) minmax(0,7.5rem) 5.4rem;
  align-items:center;gap:.6rem;
  padding:.34rem 0;border-bottom:1px solid var(--rule);
  transition:transform .55s cubic-bezier(.2,.7,.2,1);
}
@media (prefers-reduced-motion:reduce){.ledger-row{transition:none}}
.ledger-row:last-child{border-bottom:none}
.ledger-rank{font-family:"JetBrains Mono",monospace;font-size:.78rem;color:var(--ink-faint);text-align:right}
.ledger-name{font-family:"Noto Serif",serif;font-size:.92rem;color:var(--ink);white-space:normal;line-height:1.25}
.ledger-bar-track{height:.62rem;background:var(--paper-deep);border-radius:1px;overflow:hidden;position:relative}
.ledger-bar{height:100%;background:var(--ink-faint);transition:width .55s cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion:reduce){.ledger-bar{transition:none}}
.ledger-val{font-family:"JetBrains Mono",monospace;font-size:.86rem;color:var(--ink);text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}

.ledger-row.is-top .ledger-bar{background:var(--gold)}
.ledger-row.is-top .ledger-val{color:var(--gold);font-weight:700}
.ledger-row.is-bottom .ledger-bar{background:var(--stamp)}
.ledger-row.is-bottom .ledger-val{color:var(--stamp);font-weight:700}
.ledger-row.is-you{background:var(--you-bg)}
.ledger-row.is-you .ledger-bar{background:var(--you)}
.ledger-row.is-you .ledger-val,.ledger-row.is-you .ledger-name{color:var(--you);font-weight:700}

.legend{display:flex;flex-wrap:wrap;gap:1.1rem;margin-top:1.1rem;font-family:"JetBrains Mono",monospace;font-size:.74rem;color:var(--ink-dim)}
.legend span{display:inline-flex;align-items:center;gap:.4rem}
.legend i{width:10px;height:10px;display:inline-block;border-radius:1px}

/* ---------- timeline / eras strip ---------- */
.eras{border:1px solid var(--rule-strong);background:var(--white);margin:1.6rem 0}
.era-row{display:flex;align-items:stretch;border-bottom:1px solid var(--rule)}
.era-row:last-child{border-bottom:none}
.era-row-label{flex:0 0 7.5rem;padding:.6rem .8rem;font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--ink-dim);border-right:1px solid var(--rule);display:flex;align-items:center}
.era-track{flex:1;display:flex}
.era-block{display:flex;align-items:center;justify-content:center;padding:.6rem .4rem;font-family:"Courier Prime",monospace;font-size:.78rem;font-weight:700;color:var(--white);border-right:2px solid var(--paper)}
.era-block:last-child{border-right:none}
.era-block.gold{background:var(--gold)}
.era-block.stamp{background:var(--stamp)}
.era-block.mid1{background:#8b9478}
.era-block.mid2{background:#6d7660}

/* ---------- pull quote / stat card ---------- */
.pull{
  border-left:3px solid var(--stamp);padding:.2rem 0 .2rem 1.3rem;margin:1.8rem 0;
  font-family:"Courier Prime",monospace;font-size:1.1rem;line-height:1.5;color:var(--ink);max-width:46ch;font-weight:700;
}
.pull cite{display:block;margin-top:.6rem;font-family:"JetBrains Mono",monospace;font-size:.74rem;font-style:normal;font-weight:400;color:var(--ink-dim)}

.stamp-box{
  display:inline-block;border:2px solid var(--stamp);color:var(--stamp);
  padding:.5rem .8rem;font-family:"Courier Prime",monospace;font-weight:700;font-size:.86rem;
  transform:rotate(-1.4deg);letter-spacing:.03em;
  background:var(--stamp-bg);
}

/* ---------- sources ---------- */
.sources h2{color:var(--ink)}
.src-group{margin-bottom:1.6rem}
.src-group h3{font-size:1rem;color:var(--ink);margin:0 0 .6rem;font-family:"JetBrains Mono",monospace;letter-spacing:.04em;text-transform:uppercase;font-weight:700}
.src-list{list-style:none;margin:0;padding:0}
.src-list li{padding:.55rem 0;border-top:1px dashed var(--rule-strong)}
.src-list li:first-child{border-top:none}
.src-list a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--rule-strong);text-underline-offset:3px}
.src-list a:hover{color:var(--stamp)}
.src-meta{display:block;font-family:"JetBrains Mono",monospace;font-size:.76rem;color:var(--ink-dim);margin-top:.2rem}
.status-note{font-size:.9rem;color:var(--ink-dim);margin-top:1.2rem;max-width:62ch}

/* ---------- footer ---------- */
footer{
  padding:2.1rem 0 3rem;border-top:2px solid var(--ink);background:var(--panel);
  font-family:"JetBrains Mono",monospace;font-size:.82rem;color:var(--ink-dim);
}
footer .wrap{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;justify-content:space-between;align-items:center}
footer a{color:var(--ink-dim);text-decoration:underline;text-decoration-color:var(--rule-strong)}
footer a:hover{color:var(--stamp)}
footer .fline{display:flex;gap:1.2rem;flex-wrap:wrap}

/* ---------- back to top ---------- */
.totop-static{display:block;text-align:center;padding:1rem 0;font-family:"JetBrains Mono",monospace;font-size:.78rem}
.totop-static a{color:var(--ink-dim)}
footer a.totop{
  position:fixed;right:1.1rem;bottom:1.1rem;z-index:20;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--white);border-radius:50%;text-decoration:none;
  box-shadow:0 6px 18px rgba(20,24,14,.35);
  padding-bottom:env(safe-area-inset-bottom,0);
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
footer a.totop.is-visible{opacity:1;pointer-events:auto}
@media (prefers-reduced-motion:reduce){footer a.totop{transition:none}}

/* ---------- utility ---------- */
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--white);padding:.6rem 1rem;z-index:50}
.skip-link:focus{left:1rem;top:1rem}

@media (max-width:640px){
  .ledger-row{grid-template-columns:1.5rem minmax(0,1fr) minmax(0,4.6rem) 4.4rem;gap:.4rem}
  .ledger-name{font-size:.82rem}
  .ledger-val{font-size:.78rem}
  .era-row-label{flex-basis:5.2rem;font-size:.66rem;padding:.5rem .5rem}
  .era-block{font-size:.68rem;padding:.5rem .25rem}
}
@media (max-width:480px){
  body{font-size:16px}
  .stat{flex-basis:100%;border-right:none;border-bottom:1px dashed var(--rule-strong);padding-bottom:.8rem;margin-bottom:.4rem}
  .you-input-row{flex-direction:column;align-items:flex-start}
  .you-result{flex:none;width:100%;min-width:0}
}