:root { --ink:#0a0c0b; --paper:#eeeadd; --acid:#d7ff45; --blue:#6f8cff; --muted:#85897f; --line:rgba(10,12,11,.16); --mono:"DM Mono",monospace; --sans:"Manrope",sans-serif; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:var(--sans); overflow-x:hidden; }
body::selection { background:var(--acid); color:var(--ink); }
.noise { position:fixed; inset:0; opacity:.035; pointer-events:none; z-index:99; background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
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button,input { font:inherit; }
.site-header { position:sticky; top:0; z-index:50; height:72px; padding:0 clamp(22px,4vw,64px); display:flex; align-items:center; justify-content:space-between; background:rgba(238,234,221,.88); border-bottom:1px solid var(--line); backdrop-filter:blur(14px); }
.brand { display:flex; align-items:center; gap:12px; font-size:13px; font-weight:700; letter-spacing:-.02em; }
.brand-mark { padding:7px 8px; color:var(--acid); background:var(--ink); font-family:var(--mono); }
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nav a::after,.text-link::after { content:""; position:absolute; left:0; right:100%; bottom:-5px; height:1px; background:currentColor; transition:.25s; }
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@keyframes pulse { 70%{box-shadow:0 0 0 8px rgba(240,79,59,0)} 100%{box-shadow:0 0 0 0 rgba(240,79,59,0)} }
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.takeaway-section{background:var(--ink);color:white}.takeaway-section blockquote{max-width:1000px;margin:0;font-size:clamp(36px,5vw,75px);line-height:1.12;letter-spacing:-.055em}.takeaway-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:60px;margin-top:100px;padding-top:35px;border-top:1px solid #343935}.takeaway-grid span{color:var(--acid);font:10px var(--mono)}.takeaway-grid h3{margin-top:30px;font-size:20px}.takeaway-grid p{color:#949994;font-size:14px;line-height:1.7}
.credits{display:grid;grid-template-columns:1.4fr 1fr;gap:10vw}.credits h2{max-width:800px;margin:24px 0;font-size:clamp(37px,4vw,60px)}.credits p{max-width:650px;color:#60645d;line-height:1.65}.credits dl{margin:0}.credits dl div{padding:22px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:120px 1fr}.credits dt{font:10px var(--mono);color:#72766f}.credits dd{margin:0;font-size:14px;line-height:1.7}
footer{padding:50px clamp(22px,6vw,96px);display:grid;grid-template-columns:1fr auto;align-items:center;background:#c9c4b6;border-top:1px solid var(--ink)}footer>div{display:flex;flex-direction:column;gap:6px}footer>div span{font:10px var(--mono);color:#62665f}footer>p{grid-column:1/-1;margin:40px 0 0;font:9px var(--mono);color:#666a63}
[data-theme="dark"]{--ink:#eeece2;--paper:#101310;--line:rgba(238,236,226,.16);--muted:#999e97;color-scheme:dark}[data-theme="dark"] .site-header{background:rgba(16,19,16,.88)}[data-theme="dark"] .brand-mark{background:var(--acid);color:#0a0c0b}[data-theme="dark"] .button.primary,[data-theme="dark"] .contribution-tag{background:#eeece2;color:#101310}[data-theme="dark"] .button.primary:hover{background:var(--acid)}[data-theme="dark"] .hero-stats dd,[data-theme="dark"] .research-grid>div>p:not(.lead),[data-theme="dark"] .views-grid p,[data-theme="dark"] .credits p{color:#a1a69f}[data-theme="dark"] .section-index{color:#969b95}[data-theme="dark"] .question-card{background:rgba(255,255,255,.06)}[data-theme="dark"] .pipeline p,[data-theme="dark"] .protocol-note{color:#9ba099}[data-theme="dark"] .lab-section,[data-theme="dark"] .takeaway-section{background:#080b09;color:#e9e8df}[data-theme="dark"] .marquee{color:#0a0c0b;border-color:#0a0c0b}[data-theme="dark"] .view-console{background:#252923}[data-theme="dark"] .results-section{background:#171d27}[data-theme="dark"] .model-switch button.active{color:#101310}[data-theme="dark"] .finding-card{background:#252922}[data-theme="dark"] .finding-card p{color:#b2b7af}[data-theme="dark"] footer{background:#1a1d19}[data-theme="dark"] footer>div span,[data-theme="dark"] footer>p{color:#9da29b}[data-theme="dark"] .gaitstar-section{background:#121a30}[data-theme="dark"] .gaitstar-intro p:not(.lead){color:#aeb7d1}[data-theme="dark"] .architecture-map,[data-theme="dark"] .enhancement-detail{background:rgba(255,255,255,.06)}[data-theme="dark"] .arch-node{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.2)}[data-theme="dark"] .arch-node small,[data-theme="dark"] .arch-node span,[data-theme="dark"] .enhancement-detail>span{color:#abb4ce}[data-theme="dark"] h1 em{-webkit-text-stroke-color:var(--ink)}
.paper-row{grid-template-columns:70px 2fr 1fr 1fr}.paper-row span:nth-child(4){color:#a9afa9}.paper-head button{padding:0;border:0;background:transparent;color:#747a74;text-align:left;font:8px var(--mono);cursor:pointer}.paper-head button:hover{color:var(--acid)}.sheet-note span{color:var(--acid)}.paper-more{width:100%;padding:18px;border:0;border-bottom:1px solid #2f3430;background:#222723;color:var(--acid);font:9px var(--mono);cursor:pointer}.paper-more:hover{background:#2d332e}.paper-more[hidden]{display:none}.source-note{margin-top:22px!important;padding-top:15px;border-top:1px solid #292e2a;color:#6f756f!important;font:8px/1.6 var(--mono)!important}
.model-explainer{display:grid;grid-template-columns:.8fr 1fr 1fr;margin-top:30px;border:1px solid #292e2b}.model-explainer>div,.model-explainer article{padding:32px;border-right:1px solid #292e2b}.model-explainer>*:last-child{border:0}.model-explainer span{font:9px var(--mono);color:var(--acid)}.model-explainer h3{margin:30px 0 14px;font-size:20px}.model-explainer p{color:#979c96;font-size:13px;line-height:1.7}.model-explainer small{display:block;margin-top:28px;color:#d9ddd7;font:8px var(--mono)}.model-question{display:flex;flex-direction:column;justify-content:space-between}.model-question p{font-size:16px}
footer>div{align-items:flex-start}footer>div span,footer>div a{font:10px var(--mono);color:#62665f}footer>div a{border-bottom:1px solid currentColor}[data-theme="dark"] footer>div a{color:#9da29b}
.repro-section{background:#e4dfd2}.repro-heading{display:grid;grid-template-columns:1fr .7fr;gap:9vw;align-items:end}.repro-heading h2{font-size:clamp(42px,5vw,72px)}.repro-heading p{margin:0;color:#60655e;line-height:1.7}.repro-grid{margin-top:70px;border-top:1px solid var(--line)}.repro-grid details{border-bottom:1px solid var(--line)}.repro-grid summary{display:grid;grid-template-columns:60px 1fr auto;align-items:center;padding:25px 5px;cursor:pointer;list-style:none;font-size:20px}.repro-grid summary::-webkit-details-marker{display:none}.repro-grid summary span{font:10px var(--mono);color:#73776f}.repro-grid summary b{font:300 23px var(--mono);transition:.25s}.repro-grid details[open] summary b{transform:rotate(45deg)}.repro-grid details>div{display:grid;grid-template-columns:1fr 1fr;gap:9vw;padding:5px 65px 35px}.repro-grid details p{margin:0;line-height:1.7}.repro-grid details ul{margin:0;padding:0;list-style:none;color:#5e635c;font:10px/2 var(--mono)}.repro-grid details li::before{content:"✓ ";color:#477915}.repro-grid details.audit{border-left:3px solid #f04f3b}.repro-grid details.audit li::before{content:"! ";color:#f04f3b}.repro-grid code{padding:2px 4px;background:rgba(10,12,11,.08);font:inherit}[data-theme="dark"] .repro-section{background:#161915}[data-theme="dark"] .repro-heading p,[data-theme="dark"] .repro-grid details ul{color:#a4a9a2}
.ownership-section{border-top:1px solid var(--line)}.ownership-heading{display:grid;grid-template-columns:1fr .6fr;gap:9vw;align-items:end}.ownership-heading h2{font-size:clamp(42px,5vw,72px)}.ownership-heading p{color:#62675f;line-height:1.7}.ownership-grid{display:grid;grid-template-columns:1.2fr 1fr .8fr;margin-top:70px;border:1px solid var(--line)}.ownership-grid article{min-height:350px;padding:35px;border-right:1px solid var(--line)}.ownership-grid article:last-child{border:0}.ownership-grid article>span{font:9px var(--mono);color:#6e736b}.ownership-grid h3{margin:55px 0 25px;font-size:23px}.ownership-grid ul{padding:0;list-style:none;color:#61665f;font-size:13px;line-height:1.8}.ownership-grid li{margin-bottom:8px}.ownership-grid li::before{content:" - ";color:var(--blue)}.ownership-grid p{color:#61665f;line-height:1.7}.ownership-grid .owner-primary{background:var(--ink);color:var(--paper)}.ownership-grid .owner-primary>span,.ownership-grid .owner-primary ul{color:#a4aaa3}.ownership-grid .owner-primary li::before{color:var(--acid)}[data-theme="dark"] .ownership-heading p,[data-theme="dark"] .ownership-grid ul,[data-theme="dark"] .ownership-grid p{color:#a4a9a2}[data-theme="dark"] .ownership-grid .owner-primary{background:#e9e7de;color:#101310}[data-theme="dark"] .ownership-grid .owner-primary>span,[data-theme="dark"] .ownership-grid .owner-primary ul{color:#555b54}
.tour-dialog{width:min(720px,calc(100% - 32px));padding:55px;border:1px solid #535a54;background:#111512;color:#eeeee7;box-shadow:0 30px 100px rgba(0,0,0,.55)}.tour-dialog::backdrop{background:rgba(4,6,5,.76);backdrop-filter:blur(8px)}.tour-dialog h2{margin:45px 0 20px;font-size:clamp(38px,5vw,62px)}.tour-dialog>p{max-width:590px;color:#adb2ac;font-size:17px;line-height:1.7}.tour-close{position:absolute;right:22px;top:18px;border:0;background:transparent;color:white;font-size:28px;cursor:pointer}.tour-progress{position:absolute;left:0;right:0;top:0;height:4px;background:#2b302c}.tour-progress span{display:block;width:16.66%;height:100%;background:var(--acid);transition:.3s}.tour-actions{display:flex;justify-content:space-between;margin-top:45px}.tour-actions .ghost{color:white;border-color:#626862}.tour-actions button:disabled{opacity:.25;cursor:not-allowed}
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.reveal { animation:reveal .7s backwards; }.hero .reveal:nth-child(2){animation-delay:.08s}.hero .reveal:nth-child(3){animation-delay:.16s}@keyframes reveal{from{opacity:0;transform:translateY(20px)}}
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@media (max-width:600px){.site-header{height:62px}.site-header>.text-link{display:none}.section-pad{padding-block:75px}.hero{min-height:auto}.hero-grid{display:block}h1{font-size:54px}.hero-copy{font-size:16px}.hero-actions{flex-direction:column;align-items:stretch}.hero-visual{min-height:330px}.visual-label{top:auto;bottom:3%}.hero-stats{margin-top:30px}.hero-stats div{padding:18px 10px 0!important}.lab-heading,.results-heading{align-items:start;flex-direction:column;gap:30px}.lab-workbench{margin-inline:-22px;border-inline:0}.method-tabs{overflow-x:auto;grid-template-columns:repeat(5,minmax(76px,1fr))}.feature-stage{min-height:350px}.method-copy{padding:38px 25px}.method-copy h3{margin-top:50px}.pipeline{grid-template-columns:1fr}.pipeline article{min-height:260px;border-right:0}.pipeline-icon{margin:35px 0 20px}.results-grid{gap:30px}.bar-row{grid-template-columns:50px 1fr 58px;gap:8px}.gaitstar-callout{grid-template-columns:1fr;padding:35px 25px 70px}.orbit{width:180px;margin:25px auto 0}.takeaway-grid{grid-template-columns:1fr}.credits dl div{grid-template-columns:100px 1fr}footer{grid-template-columns:1fr;gap:28px}footer .button{width:100%}}
@media (max-width:900px){.journey-heading,.extraction-intro,.gaitstar-intro{grid-template-columns:1fr}.screening-studio{grid-template-columns:1fr}.screening-detail{border-left:0;border-top:1px solid #373c38}.criteria-grid{grid-template-columns:1fr 1fr}.criteria-grid blockquote{grid-column:1/-1;border-top:1px solid #373c38}.gaitstar-system{grid-template-columns:280px 1fr}.architecture-map{justify-content:flex-start;overflow-x:auto}.decision-bridge{grid-template-columns:150px 1fr}.decision-bridge a{grid-column:2}.paper-controls{align-items:start;flex-direction:column}.paper-filters{align-items:start}.paper-row{grid-template-columns:55px 1.5fr .8fr 75px}}
@media (max-width:600px){.header-actions .text-link{display:none}.theme-toggle b{display:none}.journey-heading h2{font-size:43px}.screening-studio,.paper-browser{margin-inline:-22px}.funnel-panel{padding:25px 15px}.funnel-step{grid-template-columns:25px 1fr auto}.funnel-step strong{font-size:26px}.screening-detail{padding:35px 22px}.criteria-grid{grid-template-columns:1fr;margin-inline:-22px}.criteria-grid>div,.criteria-grid blockquote{border-right:0;border-bottom:1px solid #373c38}.sheet-stats{flex-wrap:wrap}.paper-filters{overflow-x:auto;width:100%;flex-wrap:nowrap}.paper-row{grid-template-columns:42px 1fr 68px;padding:14px 12px;gap:8px}.paper-row span:nth-child(3){display:none}.paper-head span:nth-child(3){display:none}.decision-bridge{grid-template-columns:1fr;margin-inline:-22px;padding:25px}.decision-bridge a{grid-column:auto}.gaitstar-system{grid-template-columns:1fr}.gaitstar-image{max-width:360px;margin:auto}.architecture-map{min-height:300px;margin-inline:-22px}.enhancement-browser{grid-template-columns:1fr;margin-inline:-22px}.enhancement-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-right:0}.enhancement-tab{padding:15px 5px;text-align:center;font-size:8px}.enhancement-tab span{display:none}.enhancement-detail{padding:30px 22px}.gaitstar-result{grid-template-columns:1fr;gap:10px;padding:35px 22px}.benchmark-bars div{grid-template-columns:90px 1fr 50px}.benchmark-note{left:22px;right:22px}.honesty-note{grid-template-columns:1fr}}
@media (max-width:900px){.model-explainer{grid-template-columns:1fr}.model-explainer>div,.model-explainer article{border-right:0;border-bottom:1px solid #292e2b}}
@media (max-width:600px){.model-explainer{margin-inline:-22px}.paper-row{grid-template-columns:42px 1fr 90px}.paper-row span:nth-child(4){display:block}.paper-head span:nth-child(4){display:block}}
@media (max-width:900px){.repro-heading,.ownership-heading{grid-template-columns:1fr}.ownership-grid{grid-template-columns:1fr}.ownership-grid article{min-height:auto;border-right:0;border-bottom:1px solid var(--line)}}
@media (max-width:600px){.repro-grid details>div{grid-template-columns:1fr;padding:5px 15px 30px}.repro-grid summary{grid-template-columns:38px 1fr auto;font-size:16px}.ownership-grid{margin-inline:-22px}.tour-dialog{padding:45px 24px 28px}.tour-actions{gap:10px}.tour-actions .button{padding-inline:12px;gap:8px}.gait-steps{grid-template-columns:1fr}.gait-steps article{padding:17px}.gait-dialog>p{font-size:14px}.gait-actions .button{width:100%}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.reveal{opacity:1!important;transform:none!important;animation:none!important}}

/* Keyboard focus. Every custom-styled control needs a visible ring; the acid
   outline carries a dark halo so it reads on both the paper and ink sections. */
:where(a,button,input,select,summary,dialog,[tabindex]):focus-visible{outline:3px solid var(--acid);outline-offset:3px;box-shadow:0 0 0 5px rgba(10,12,11,.6);border-radius:2px}
.paper-controls input:focus-visible{outline:3px solid var(--acid);outline-offset:2px;box-shadow:0 0 0 5px rgba(10,12,11,.6)}
.skip-link{position:absolute;left:12px;top:-60px;z-index:200;padding:12px 18px;background:var(--ink);color:var(--paper);font:500 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;text-decoration:none;transition:top .18s}
.skip-link:focus-visible{top:12px}
@media print{.noise,.site-header,nav,.reading-progress,.header-actions,.hero-actions,.paper-controls,.tour-dialog,.gait-dialog{display:none!important}body{background:white;color:black}.section-pad{padding-block:24px}a[href^="http"]::after{content:" (" attr(href) ")";font-size:10px;word-break:break-all}.reveal{opacity:1!important;transform:none!important;animation:none!important}}

/* Phones and tablets: the 7–8px mono labels are fine on a large screen but too
   small to read on a handheld, so they step up to 10px (9px where four tabs
   share a row). */
@media (max-width:900px){.panel-label,.funnel-step span,.funnel-step small,.database-split div,.sheet-stats span,.paper-controls label span,.paper-filters button,.paper-row span:nth-child(1),.paper-row span:nth-child(3),.paper-row span:nth-child(4),.paper-head,.paper-head button,.sheet-note,.method-tab span,.method-tab b,.gaitstar-image>span,.gaitstar-image small,.arch-node small,.attention-rings b,.enhancement-detail b,.benchmark-note,.gaitstar-callout .caveat,.model-explainer small,.contribution-tag,.decision-bridge span,.decision-bridge a{font-size:10px}.source-note{font-size:10px!important}.enhancement-tab{font-size:9px}}
/* Phones: the funnel keeps its shape but narrows less, so every stage has
   room for its number and label. */
@media (max-width:600px){.funnel-step{width:calc(55% + var(--size) * .45);column-gap:10px;padding-inline:14px}}