:root{
  --bg:#ffffff;--ink:#202124;--muted:#505b6b;--line:#dce3ed;
  --accent:#1967d2;--blue:#1a73e8;--recent:#188038;--event:#1a73e8;
  --body-size:16px;--small-size:14px;--label-size:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--ink);font:var(--body-size)/1.75 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
button,select{font:inherit}
button,a,select{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
.skip{position:absolute;top:-80px;background:#fff;padding:15px;z-index:99}.skip:focus{top:10px}
header{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,24px);border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}
.wordmark{font-size:23px;font-weight:650;letter-spacing:-.6px;color:var(--accent)}
nav{display:flex;gap:30px;align-items:center;font-size:var(--small-size);font-weight:550}
.nav-paper{border-left:1px solid var(--line);padding-left:28px}
.wrap{max-width:1160px;margin:auto;padding-left:32px;padding-right:32px}
.narrow{max-width:890px}
h1,h2,h3,p{margin-top:0}
h2{font-size:32px;line-height:1.3;font-weight:600;letter-spacing:-.75px}
h3{font-size:22px;line-height:1.4;font-weight:600;letter-spacing:-.3px}
p{font-size:var(--body-size);line-height:1.8;color:var(--muted)}
strong{font-weight:600}
.eyebrow{font-size:var(--label-size);font-weight:650;letter-spacing:1.5px;line-height:1.5;color:var(--accent);margin-bottom:12px}
.hero{text-align:center;padding-top:65px;padding-bottom:60px}
h1{font-size:42px;line-height:1.25;letter-spacing:-1.1px;font-weight:550;max-width:1040px;margin:0 auto 28px;text-wrap:balance}
.project-name{font-weight:700;color:var(--accent)}
.authors{margin:0 auto 22px;color:var(--ink);font-size:18px;line-height:1.65;max-width:980px}
.author-row{display:flex;flex-wrap:wrap;justify-content:center;align-items:baseline;gap:6px 24px}
.author-row+.author-row{margin-top:5px}
.author{white-space:nowrap;font-weight:450}
.author sup{font-size:.65em;line-height:0;vertical-align:super;margin-left:2px;font-weight:400}
.affiliations{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:20px 48px;margin:26px auto 30px;min-height:68px}
.affiliation{display:inline-flex;align-items:center;gap:10px}
.affiliation sup{font-size:14px;align-self:flex-start;margin-top:4px;color:var(--muted)}
.affiliation img{display:block;object-fit:contain;height:auto}
.uva-affiliation img{width:230px}
.google-affiliation img{width:125px}
.actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.button{display:inline-flex;gap:10px;align-items:center;justify-content:center;padding:11px 20px;border:1px solid transparent;border-radius:7px;font-size:16px;font-weight:550;line-height:1.5;transition:background .2s,color .2s;cursor:pointer}
.primary{background:var(--accent);color:#fff}.primary:hover{background:#1558b0;color:#fff}
.secondary{border-color:#c4d2e7;background:transparent;color:var(--accent)}.secondary:hover{background:#eaf2ff}
.hero-deck{max-width:830px;margin:28px auto 0;font-size:var(--body-size);line-height:1.85}
.hero-deck strong{color:var(--ink)}
.section{padding-top:72px;padding-bottom:72px}
.abstract{background:#f7f9fd;border-block:1px solid #e8edf5}
.abstract h2{margin-bottom:24px}.abstract p{margin-bottom:18px}.abstract p:last-child{margin-bottom:0}.abstract strong{color:var(--ink)}
.section-heading{margin-bottom:30px}
.section-heading h2{margin:0 0 16px}
.section-heading>p{font-size:var(--body-size);max-width:900px;margin:0;line-height:1.8}
.method-section{background:#eef4ff;border-bottom:1px solid #e1e9f7}
.paper-figure{background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px;margin:0}
.figure-pdf{display:block;width:100%;border:0;background:#fff;border-radius:3px}
.method-pdf{height:350px}.case-pdf{height:360px}
.pdf-fallback{margin:0;min-height:150px;display:grid;align-content:center;text-align:center;padding:25px;font-size:var(--body-size)}
.pdf-fallback a,figcaption a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
figcaption{font-size:var(--small-size);color:var(--muted);line-height:1.75;margin-top:18px}
figcaption a{white-space:nowrap;margin-left:6px}
.method-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin:32px 0 40px}
.method-steps article{border-top:1px solid #cbd9ed;padding-top:18px}
.method-steps article>span{font-size:var(--small-size);color:var(--accent);font-weight:600}
.method-steps h3{margin:10px 0 12px}
.method-steps p{margin:0}
.router-demo{display:grid;grid-template-columns:.95fr 1.2fr;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.demo-copy{padding:30px;border-right:1px solid var(--line)}
.demo-copy h3{font-size:26px;margin:0 0 16px}.demo-copy h3 br{display:none}
.demo-copy p{margin-bottom:24px}
.demo-copy label{display:block;font-size:var(--small-size);margin-bottom:8px;font-weight:550}
select{background:#fff;border:1px solid #bdcbe0;border-radius:6px;padding:11px 32px 11px 12px;color:var(--ink);font-size:var(--body-size);cursor:pointer;max-width:100%}
.demo-copy select{width:100%}
.text-button{border:0;background:transparent;color:var(--accent);padding:16px 0 0;font-size:var(--body-size);cursor:pointer;text-align:left}
.demo-display{padding:30px;display:flex;flex-direction:column;justify-content:center;min-width:0}
.budget-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:24px}
.budget-heading>span{font-size:var(--small-size);font-weight:550;color:var(--muted)}
.budget-heading strong{font-size:28px;white-space:nowrap}.budget-heading small{font-size:var(--small-size);font-weight:400;color:var(--muted)}
#budget-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}
.budget-block{height:49px;display:grid;grid-template-columns:repeat(4,1fr);gap:3px;padding:7px;border:1px solid #c5e3ce;border-radius:4px;background:#eaf5ee;transition:background .4s,border-color .4s}
.budget-block i{background:#4c9d64;border-radius:1px;transition:background .4s}
.budget-block.event{background:#eaf2ff;border-color:#c4d9fa}.budget-block.event i{background:#4b8fe6}
.legend{display:flex;justify-content:space-between;gap:15px;font-size:var(--body-size);margin-top:20px}
.legend i{height:10px;width:10px;display:inline-block;border-radius:2px;margin-right:6px}.recent-swatch{background:var(--recent)}.event-swatch{background:var(--event)}
.legend strong{margin-left:10px;font-size:18px}
.allocation-detail{font-size:var(--body-size);min-height:86px;margin:24px 0 16px}
.budget-foot{font-size:var(--small-size);color:var(--muted);border-top:1px solid var(--line);padding-top:15px}
.research-note{font-size:var(--body-size);line-height:1.8;margin:24px 0 0}.method-note{max-width:980px}
.results-section{background:#f8fafc;border-bottom:1px solid #e7ecf3}
.results-panel{border:1px solid var(--line);padding:30px;background:#fff;border-radius:10px}
.result-controls{display:flex;flex-wrap:wrap;gap:20px;align-items:end;border-bottom:1px solid var(--line);padding-bottom:25px}
.result-controls label{font-size:var(--small-size);color:var(--muted);font-weight:550;display:flex;flex-direction:column;gap:8px}
.result-controls select{min-width:205px;font-weight:400}
.result-controls a{font-size:var(--small-size);color:var(--accent);margin-left:auto;margin-bottom:12px}
.chart-header{display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:var(--small-size);margin:24px 0}
.bar-row{display:grid;grid-template-columns:145px minmax(0,1fr) 55px;align-items:center;gap:18px;margin:18px 0;font-size:var(--body-size)}
.bar-track{height:28px;background:#f0f3f8;border-radius:4px;overflow:hidden}
.bar-fill{height:100%;background:#a9bfdc;border-radius:4px;transition:width .5s ease}
.bar-row.vanilla .bar-fill{background:#b5bcc6}.bar-row.keyrec .bar-fill{background:var(--blue)}.bar-row.keyrec{font-weight:650;color:var(--accent)}
.bar-value{text-align:right;font-variant-numeric:tabular-nums}
.result-insight{font-size:var(--body-size);padding-top:22px;margin:25px 0 14px;border-top:1px solid var(--line)}
.fine{font-size:var(--small-size);color:var(--muted);line-height:1.8}.results-panel>.fine{margin-bottom:0}
.full-results{margin-top:20px;border-bottom:1px solid var(--line);padding-bottom:18px}
.full-results summary{display:flex;justify-content:space-between;align-items:center;gap:15px;cursor:pointer;font-size:var(--body-size);padding:8px 0;list-style:none;color:var(--accent)}
.full-results summary::-webkit-details-marker{display:none}.full-results summary span{font-size:24px}.full-results[open] summary span{transform:rotate(45deg)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;text-align:right;font-size:var(--small-size);font-variant-numeric:tabular-nums}
th,td{padding:14px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-weight:550;color:var(--muted);font-size:var(--small-size)}
td:first-child,th:first-child{text-align:left;padding-left:0}
.full-results table{margin-top:16px}.full-results td:nth-child(2){text-align:left}.full-results td:last-child{color:var(--accent)}.full-results .fine{margin:16px 0 0}
.scaling{display:grid;grid-template-columns:1fr 1.15fr;gap:36px;align-items:center;margin:40px 0 0;padding:30px;background:#edf2fb;border:1px solid #dce5f5;border-radius:10px}
.scaling h3{margin-bottom:16px;font-size:26px}.scaling p{font-size:var(--body-size);margin-bottom:18px}.scaling p.fine{font-size:var(--small-size);margin-bottom:0}
.scaling td{font-size:var(--body-size)}.scaling .table-scroll>.fine{display:block;margin-top:16px}.oom{color:#a63d36}
.example-section{background:#f1f3fc;border-bottom:1px solid #e1e6f4}
.case-layout{display:grid;grid-template-columns:1.45fr 1fr;gap:34px;align-items:start}
.case-layout figure{margin:0;background:#fff;padding:20px;border:1px solid var(--line);border-radius:10px;min-width:0}
.case-story h3{font-size:24px;line-height:1.45;margin:0 0 20px}
.route-label{font-size:var(--small-size);display:flex;flex-wrap:wrap;align-items:center;gap:12px;color:var(--muted)}
.route-label strong{background:#dfeafa;padding:6px 12px;border-radius:5px;color:#205da4;font-size:var(--small-size);font-weight:550}
.case-story>p{font-size:var(--body-size);margin:20px 0}
.answer{border-left:3px solid #5287cc;padding:16px 18px;background:#e4ecfb;border-radius:0 6px 6px 0}
.answer span{font-size:var(--small-size);font-weight:550;color:#345d97}
.answer p{font-size:20px;line-height:1.6;color:var(--ink);margin:8px 0 0}.case-story p.fine{font-size:var(--small-size);margin-bottom:0}
.resources-section{background:#fafbfd}
.resources{display:grid;grid-template-columns:1fr 1.2fr;gap:55px}
.resources h2{margin-bottom:20px}.resources>div>p{max-width:400px;margin-bottom:0}
.resource-links>a,.resource-pending{padding:22px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:18px}
.resource-links>a:first-child{padding-top:0}
.resource-links strong{font-size:18px;font-weight:550}
.resource-links small{display:block;color:var(--muted);font-size:var(--small-size);line-height:1.65;margin-top:6px}
.resource-links>a>span{font-size:24px;color:var(--accent)}
.tag{font-size:var(--label-size);letter-spacing:.6px;color:var(--muted);font-weight:600;white-space:nowrap}
.citation-section{background:#f2f6fc;border-top:1px solid var(--line);padding-top:55px;padding-bottom:50px}
.citation-section .section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.citation-section h2{margin:0}
.citation-code{margin:0;padding:26px 28px;background:#fff;border:1px solid var(--line);border-radius:10px;color:#343e50;overflow-x:auto;font:14px/1.85 ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;tab-size:2}
.citation-code code{font:inherit;white-space:pre-wrap;overflow-wrap:anywhere}
.copy-status{min-height:25px;margin:12px 0 0;font-size:var(--small-size);color:var(--muted)}
footer{padding-top:28px;padding-bottom:30px;display:flex;align-items:center;justify-content:space-between;gap:24px}
footer p,footer>a:last-child{font-size:var(--small-size);color:var(--muted);margin:0}footer .wordmark{font-size:22px}
@media(max-width:900px){
  h1{font-size:38px}h1 br{display:none}.hero{padding-top:50px}
  .router-demo{grid-template-columns:1fr 1.1fr}.demo-copy,.demo-display{padding:24px}
  #budget-grid{gap:5px}.budget-block{padding:5px;gap:2px;height:42px}
  .budget-heading{align-items:start;flex-direction:column;gap:5px}.allocation-detail{min-height:115px}
  .case-layout{grid-template-columns:1fr}.case-pdf{height:440px}.case-story{max-width:840px}
  .scaling{grid-template-columns:1fr;gap:22px}.scaling h3 br{display:none}.scaling .table-scroll{max-width:100%}
  .result-controls a{margin-left:0}.method-pdf{height:300px}
  .resources{gap:32px}.author-row{gap:6px 18px}
}
@media(max-width:650px){
  header{height:64px;padding:0 20px}nav{gap:18px}.nav-paper{padding-left:0;border:0}.wordmark{font-size:21px}
  .wrap{padding-left:22px;padding-right:22px}.hero{padding-top:40px;padding-bottom:40px}
  h1{font-size:30px;line-height:1.32;letter-spacing:-.6px;margin-bottom:24px}h2{font-size:28px}h3{font-size:22px}
  .authors{font-size:16px;margin-bottom:18px}.author-row{gap:5px 15px}.author-row+.author-row{margin-top:5px}
  .affiliations{gap:20px 24px;margin:22px auto 26px;min-height:55px}.affiliation{gap:7px}.affiliation sup{margin-top:0}
  .uva-affiliation img{width:180px}.google-affiliation img{width:94px}
  .button{padding:10px 15px;font-size:var(--small-size)}.actions{gap:10px}.hero-deck{margin-top:25px;text-align:left}
  .section{padding-top:48px;padding-bottom:48px}.section-heading{margin-bottom:24px}
  .paper-figure{padding:16px}.method-pdf{height:235px}figcaption a{display:inline-block;margin-left:0}
  .method-steps{grid-template-columns:1fr;gap:24px;margin:28px 0 32px}.method-steps h3{margin-bottom:10px}
  .router-demo{grid-template-columns:1fr}.demo-copy{border-right:0;border-bottom:1px solid var(--line)}
  .demo-copy,.demo-display{padding:22px}.demo-copy h3{font-size:24px}
  .budget-heading{flex-direction:row;align-items:center;margin-bottom:20px}.budget-heading strong{font-size:26px}
  .budget-block{height:43px}.allocation-detail{min-height:0;margin-top:22px}
  .results-panel{padding:20px}.result-controls{display:grid;grid-template-columns:1fr;gap:16px}
  .result-controls select{min-width:0;width:100%}.result-controls a{margin-bottom:0}
  .bar-row{grid-template-columns:103px minmax(0,1fr) 43px;gap:10px;font-size:var(--small-size)}.bar-track{height:26px}
  .chart-header{gap:8px}.scaling{padding:22px;margin-top:30px}.scaling td,.scaling th{padding:13px 9px}.scaling th:first-child,.scaling td:first-child{padding-left:0}
  .case-layout{gap:26px}.case-layout figure{padding:16px}.case-pdf{height:320px}.case-story h3{font-size:23px}
  .resources{grid-template-columns:1fr;gap:28px}.resource-links strong{font-size:18px}.resource-pending{gap:12px}
  .citation-code{padding:20px 16px}.citation-section .section-heading{gap:15px}.copy-citation{padding:10px 12px}
  footer{flex-wrap:wrap;padding-top:24px;padding-bottom:24px}footer p{display:none}
}
@media(max-width:380px){.affiliations{gap:20px}.uva-affiliation img{width:155px}.google-affiliation img{width:80px}.affiliation{gap:5px}.budget-heading{flex-direction:column;align-items:start}.bar-row{grid-template-columns:93px minmax(0,1fr) 43px;gap:7px}.result-controls select{font-size:var(--small-size)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}