/* Jamming Physics — Special-Sense Organs
   House style: instrument-grade academic. The signature is the claim-strip:
   every claim carries a grade badge ([F]/[V]/[L]/[O]) and a reproduction path.
   No build step, no JS dependency: static, accessible, reduced-motion-safe. */

:root{
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  --paper:#fbfaf7; --panel:#f3f1ea; --line:#dcd8cf; --line-soft:#e9e6df;
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  --accent-soft:#0f5d6314;
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  --g-hyp:#5a4a6a;      --g-hyp-bg:#ece4f1;
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}

*{box-sizing:border-box}
html{font-size:18px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--serif);line-height:1.62;
  font-feature-settings:"kern" 1,"liga" 1,"onum" 1;
}

/* ---- shell ---- */
header{border-bottom:1px solid var(--line);background:var(--paper)}
nav.crumb{
  max-width:var(--maxw);margin:0 auto;padding:.85rem 1.25rem;
  font-family:var(--sans);font-size:.78rem;letter-spacing:.02em;color:var(--faint);
}
nav.crumb a{color:var(--accent);text-decoration:none}
nav.crumb a:hover{text-decoration:underline}
main{max-width:var(--maxw);margin:0 auto;padding:2.4rem 1.25rem 1rem}
footer{
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}
footer a{color:var(--accent);text-decoration:none}

/* ---- type ---- */
h1{
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  margin:.2rem 0 1.1rem;text-wrap:balance;
}
h2{
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h2::before{
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h3{
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}
p{margin:0 0 1rem}
a{color:var(--accent)}
strong,b{font-weight:650}
sup,sub{line-height:0}

/* answer-first: the lede the retrieval engine extracts */
p.answer{
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  padding:1rem 1.15rem;margin:0 0 1.15rem;
}
p.abstract{color:var(--ink-soft);font-size:1.02rem;margin:0 0 1.2rem}

/* ---- claim-strip: the signature device ---- */
aside.claim-strip{
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  font-family:var(--sans);font-size:.78rem;
  border:1px solid var(--line);background:var(--panel);border-radius:6px;
  padding:.6rem .85rem;margin:0 0 1.6rem;
}
aside.claim-strip a{color:var(--accent);text-decoration:none;font-weight:550}
aside.claim-strip a:hover{text-decoration:underline}
.claim-strip .gate{color:var(--faint);letter-spacing:.01em}
.claim-strip .doi{color:var(--accent);font-weight:550}

.grade{
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  font-size:.72rem;text-transform:uppercase;white-space:nowrap;
}
.g-forced{color:var(--g-forced);background:var(--g-forced-bg)}
.g-verified{color:var(--g-verified);background:var(--g-verified-bg)}
.g-calibrated{color:var(--g-calibrated);background:var(--g-calibrated-bg)}
.g-open{color:var(--g-open);background:var(--g-open-bg)}
.g-hypothesis{color:var(--g-hyp);background:var(--g-hyp-bg)}

/* ---- vp-card: a locked quantity restated self-containedly ---- */
aside.vp-card{
  font-family:var(--sans);font-size:.84rem;line-height:1.5;color:var(--ink-soft);
  border:1px solid var(--line-soft);border-left:3px solid var(--g-calibrated);
  background:#fff;border-radius:0 5px 5px 0;padding:.7rem .9rem;margin:1.1rem 0;
}
aside.vp-card b{color:var(--ink);font-family:var(--mono);font-size:.86rem}
aside.vp-card a{color:var(--accent);text-decoration:none;font-weight:550}
aside.vp-card a:hover{text-decoration:underline}

/* honest-boundary callout */
.bound{
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  padding:.65rem .9rem;margin:1.1rem 0;
}
.bound b{color:var(--ink)}

/* ---- tables ---- */
.tbl-wrap{overflow-x:auto;margin:1.1rem 0}
table{
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  line-height:1.45;
}
caption{
  caption-side:top;text-align:left;font-family:var(--sans);font-size:.78rem;
  color:var(--faint);margin-bottom:.4rem;
}
th,td{text-align:left;padding:.45rem .7rem;border-bottom:1px solid var(--line-soft);vertical-align:top}
thead th{
  border-bottom:1.5px solid var(--line);color:var(--ink);font-weight:650;
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}
tbody tr:last-child td{border-bottom:1px solid var(--line)}
td code,th code,p code,li code{
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  padding:.05rem .3rem;border-radius:3px;
}
.num{font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---- lists ---- */
ul,ol{margin:0 0 1.1rem;padding-left:1.3rem}
li{margin:.3rem 0}

/* ---- prev/next nav ---- */
nav.pn{
  display:flex;flex-wrap:wrap;gap:.6rem 1rem;justify-content:space-between;
  align-items:center;font-family:var(--sans);font-size:.84rem;
  border-top:1px solid var(--line);padding-top:1.1rem;margin-top:2.4rem;
}
nav.pn a{color:var(--accent);text-decoration:none;font-weight:550}
nav.pn a:hover{text-decoration:underline}
nav.pn a[href*="/sensory_organ/"]:not([rel]){color:var(--faint);font-weight:500}

/* ---- hub & index ---- */
.lede{font-size:1.12rem;color:var(--ink-soft);margin:0 0 1.4rem;text-wrap:pretty}
.derive-line{
  font-family:var(--sans);font-size:.86rem;color:var(--ink-soft);
  border-left:3px solid var(--accent);background:var(--accent-soft);
  padding:.6rem .9rem;border-radius:0 4px 4px 0;margin:0 0 1.8rem;
}
.derive-line a{font-weight:600;text-decoration:none}

ol.toc{list-style:none;padding:0;margin:1.2rem 0 0;counter-reset:ch}
ol.toc li{
  margin:0;border-bottom:1px solid var(--line-soft);padding:.7rem 0;
  display:grid;grid-template-columns:2.1rem 1fr auto;gap:.5rem 1rem;align-items:baseline;
}
ol.toc li::before{
  counter-increment:ch;content:"§" counter(ch);
  font-family:var(--mono);font-size:.82rem;color:var(--faint);
}
ol.toc a{font-family:var(--serif);font-size:1.02rem;text-decoration:none;color:var(--ink);font-weight:500}
ol.toc a:hover{color:var(--accent);text-decoration:underline}
ol.toc .one{display:block;font-family:var(--sans);font-size:.8rem;color:var(--ink-soft);margin-top:.2rem;font-weight:400}
ol.toc .gcell{justify-self:end}

.card-grid{display:grid;gap:1rem;margin:1.4rem 0}
.paper-card{
  border:1px solid var(--line);border-radius:8px;background:#fff;padding:1.1rem 1.2rem;
}
.paper-card h3{margin:.1rem 0 .4rem;font-family:var(--sans);font-size:1.04rem;font-weight:650}
.paper-card .res{font-family:var(--mono);font-size:.86rem;color:var(--accent);margin:.2rem 0 .5rem}
.paper-card a{text-decoration:none;font-family:var(--sans);font-size:.84rem;font-weight:550}

.legend{
  display:flex;flex-wrap:wrap;gap:.5rem .8rem;font-family:var(--sans);font-size:.76rem;
  color:var(--ink-soft);margin:1.4rem 0;padding:.8rem .9rem;
  border:1px solid var(--line-soft);border-radius:6px;background:var(--panel);
}
.legend span.k{display:inline-flex;align-items:center;gap:.4rem}

/* ---- responsive ---- */
@media (max-width:34rem){
  html{font-size:17px}
  main{padding:1.8rem 1.05rem 1rem}
  h1{font-size:1.6rem}
  ol.toc li{grid-template-columns:1.8rem 1fr;}
  ol.toc .gcell{grid-column:2;justify-self:start;margin-top:.35rem}
}

/* ---- a11y ---- */
a:focus-visible,.toc a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
@media print{
  body{background:#fff}
  aside.claim-strip,nav.pn,nav.crumb{break-inside:avoid}
}