:root{
  --paper:#F5F7FA; --panel:#FFFFFF; --ink:#1B2433; --muted:#5B6576; --rule:#D5DBE3;
  --a:#2B59C3; --b:#D64545; --c:#2A9D8F; --d:#8A5CC2; --thr:#C98A00; --human:#2B59C3; --nrm:#D64545;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Instrument Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px);scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:1.125rem;line-height:1.62;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--a)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--thr);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 1.25rem}
.text{max-width:42rem}
h1,h2,h3{font-weight:500;line-height:1.15;letter-spacing:-.01em;margin:0}
h2{font-size:clamp(1.7rem,3.2vw,2.3rem);margin-bottom:.9rem}
h3{font-size:1.3rem;margin:1.6rem 0 .4rem}
p{margin:0 0 1rem}
section{padding:4.5rem 0;border-top:1px solid var(--rule)}
.ui{font-family:var(--sans);font-size:.92rem}
.lede{font-size:1.28rem;line-height:1.55;color:#2c3648}

/* hero */
header.hero{padding-top:3.2rem;padding-bottom:2.5rem}
.venue{font-family:var(--sans);font-weight:600;font-size:.9rem;color:var(--thr);margin-bottom:1rem;display:inline-flex;gap:.5rem;align-items:center}
.venue span{display:inline-block;width:.6rem;height:.6rem;border-radius:50%;background:var(--thr)}
.hero h1{font-size:clamp(2.7rem,7vw,5.2rem);font-weight:500;letter-spacing:-.025em;line-height:1}
.hero .sub{font-size:clamp(1.15rem,2.1vw,1.45rem);color:var(--muted);margin:.9rem 0 1.4rem;max-width:40rem;font-style:italic}
.authors{font-family:var(--sans);font-size:1.02rem;display:flex;flex-wrap:wrap;gap:.35rem 1.3rem;margin-bottom:.5rem}
.authors sup,.affil sup{font-size:.7em;margin-left:.08em}
.affil{font-family:var(--sans);font-size:.92rem;color:var(--muted,#5a6375);display:flex;flex-wrap:wrap;gap:.25rem 1.3rem;margin-bottom:.35rem}
.emails{font-family:var(--mono,ui-monospace,monospace);font-size:.8rem;display:flex;flex-wrap:wrap;gap:.2rem 1.1rem;margin-bottom:1.4rem}
.emails a{color:var(--muted,#5a6375);text-decoration:none}
.emails a:hover{color:var(--ink);text-decoration:underline}
.links{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:2rem}
.btn{font-family:var(--sans);font-weight:500;font-size:.95rem;display:inline-flex;align-items:center;gap:.45rem;padding:.55rem 1rem;border-radius:999px;border:1px solid var(--ink);color:var(--ink);background:transparent;text-decoration:none;cursor:pointer}
.btn:hover{background:var(--ink);color:#fff}
.btn.solid{background:var(--ink);color:#fff}
.btn.solid:hover{background:#34405a}
.btn svg{width:1rem;height:1rem}
.race-stage{background:var(--panel);border:1px solid var(--rule);border-radius:14px;padding:1rem 1rem .8rem;position:relative}
.race-stage canvas{width:100%;height:320px;display:block}
.race-row{display:grid;grid-template-columns:clamp(104px,23%,200px) minmax(0,1fr);gap:clamp(.7rem,2vw,1.4rem);align-items:center}
.race-row #hero{min-width:0}
.stim{margin:0;background:var(--paper);border:1px solid var(--rule);border-radius:12px;padding:.65rem .65rem .7rem}
.stim-head{font-family:var(--sans);font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:.45rem}
.stim-frame{position:relative;aspect-ratio:1/1;border-radius:8px;overflow:hidden;background:#20262f}
.stim-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:filter .35s ease}
.race-stage .stim-frame canvas{position:absolute;inset:0;width:100%;height:100%}
.stim-meta{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:0 .4rem;margin-top:.5rem;font-family:var(--sans);font-size:.82rem;color:var(--muted)}
.stim-label{font-weight:600;font-size:.95rem;color:var(--ink);transition:color .3s}
.stim-clar b{color:var(--ink);font-weight:600}
.meter{height:5px;border-radius:999px;background:var(--rule);overflow:hidden;margin-top:.35rem}
.meter i{display:block;height:100%;width:0;border-radius:inherit;background:var(--ink);transition:width .35s ease,background-color .3s}
@media (max-width:600px){.stim{padding:.45rem .45rem .5rem}.stim-head{font-size:.66rem;margin-bottom:.3rem}.stim-meta{font-size:.74rem}.stim-label{font-size:.84rem}}
.stage-bar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.6rem;margin-top:.5rem}
.readout{font-family:var(--sans);font-size:.95rem;color:var(--muted);min-height:1.5em}
.readout b{color:var(--ink);font-weight:600}
.stage-note{font-family:var(--sans);font-size:.85rem;color:var(--muted);margin-top:.6rem}

/* claims */
.claims{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:2rem 2.5rem;margin-top:2rem}
.claim .num{font-size:2.6rem;line-height:1;font-weight:500}
.claim .num small{font-size:1rem;color:var(--muted);font-family:var(--sans);font-weight:400;margin-left:.3rem}
.claim p{font-family:var(--sans);font-size:.93rem;color:var(--muted);margin:.5rem 0 0}

/* pipeline */
figure{margin:2rem 0}
figure.plate{background:#fff;border:1px solid var(--rule);border-radius:10px;padding:1rem}
figcaption{font-family:var(--sans);font-size:.88rem;color:var(--muted);margin-top:.8rem;line-height:1.5;max-width:52rem}
.steps{list-style:none;padding:0;margin:2rem 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem 2rem;counter-reset:s}
.steps li{counter-increment:s;padding-top:.9rem;border-top:2px solid var(--ink)}
.steps li::before{content:counter(s);font-family:var(--sans);font-weight:600;font-size:.85rem;color:var(--thr);display:block;margin-bottom:.3rem}
.steps h3{margin:0 0 .35rem;font-size:1.2rem}
.steps p{font-size:1rem;margin:0}
.eq{font-family:var(--serif);font-style:italic;font-size:1.25rem;text-align:center;margin:1.6rem 0;overflow-x:auto;white-space:nowrap}

/* playgrounds */
.lab{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(260px,1fr);gap:1.25rem;margin-top:1.8rem}
@media (max-width:860px){.lab{grid-template-columns:1fr}}
.panel{background:var(--panel);border:1px solid var(--rule);border-radius:12px;padding:1rem}
.panel canvas{width:100%;display:block}
.controls{display:flex;flex-direction:column;gap:1rem}
.ctl label{font-family:var(--sans);font-size:.92rem;display:flex;justify-content:space-between;gap:1rem;margin-bottom:.25rem}
.ctl label output{font-weight:600;font-variant-numeric:tabular-nums}
.ctl .hint{font-family:var(--sans);font-size:.8rem;color:var(--muted);margin-top:.15rem}
input[type=range]{width:100%;accent-color:var(--ink)}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-top:.3rem}
.stat{border-top:1px solid var(--rule);padding-top:.5rem}
.stat .v{font-size:1.6rem;font-variant-numeric:tabular-nums;line-height:1.1}
.stat .k{font-family:var(--sans);font-size:.8rem;color:var(--muted)}
.legend{font-family:var(--sans);font-size:.82rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;margin-top:.5rem}
.legend i{display:inline-block;width:.9rem;height:3px;vertical-align:middle;margin-right:.35rem;border-radius:2px}
.twin{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}
@media (max-width:560px){.twin{grid-template-columns:1fr}}
.callout{border-left:3px solid var(--thr);padding:.2rem 0 .2rem 1rem;margin:1.4rem 0;font-size:1.05rem}

/* results */
.tabs{display:flex;flex-wrap:wrap;gap:.4rem;margin:1.6rem 0 1.2rem;font-family:var(--sans)}
.tab{border:1px solid var(--rule);background:#fff;border-radius:999px;padding:.45rem 1rem;font:inherit;font-size:.92rem;cursor:pointer;color:var(--ink)}
.tab[aria-selected=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.tabpanel[hidden]{display:none}
figure.race{margin:1.2rem 0 0}
figure.race img{display:block;width:100%;max-width:960px;height:auto;border:1px solid var(--rule);border-radius:10px;background:var(--paper)}
.charts{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem}
.chart{background:#fff;border:1px solid var(--rule);border-radius:12px;padding:.9rem .9rem .6rem}
.chart h4{font-family:var(--sans);font-weight:600;font-size:.92rem;margin:0 0 .3rem}
.chart svg{width:100%;height:auto;display:block;overflow:visible}
.chart svg text{font-family:var(--sans);font-size:11px;fill:var(--muted)}
.honest{font-family:var(--sans);font-size:.92rem;color:var(--muted);margin-top:1.2rem;max-width:52rem}
details.fig{margin-top:1.4rem}
details.fig summary{font-family:var(--sans);font-size:.92rem;cursor:pointer;color:var(--a)}

/* mapping table */
.maptbl{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:.92rem}
.tblwrap{overflow-x:auto}
.maptbl th,.maptbl td{text-align:left;padding:.65rem .8rem;border-bottom:1px solid var(--rule);vertical-align:top}
.maptbl th{font-weight:600;color:var(--muted);font-size:.85rem}
.maptbl td:first-child{font-family:var(--serif);font-size:1.02rem;white-space:nowrap}
.pill{display:inline-block;font-size:.75rem;padding:.1rem .5rem;border-radius:999px;border:1px solid currentColor}
.strong{color:#2A7F4F}.weak{color:#9A6B00}.none{color:#A33B3B}

pre.bib{background:#fff;border:1px solid var(--rule);border-radius:10px;padding:1rem 1.1rem;overflow-x:auto;font-size:.88rem;line-height:1.5;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
footer{padding:2.5rem 0 3rem;border-top:1px solid var(--rule);font-family:var(--sans);font-size:.85rem;color:var(--muted)}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}