:root{--ink:#252522;--muted:#65655f;--blue:#365f78;--blue-light:#edf2f5;--line:#deded9;--sand:#f5f0e7;--paper:#fff;--sans:Arial,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
button{cursor:pointer;color:inherit}
button:disabled{cursor:default;opacity:.4}
button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid #7fabc9;outline-offset:4px}
button[hidden],[hidden]{display:none!important}
h1,h2,h3,p{margin-top:0}
h1,h2{font-family:var(--sans);font-weight:600;letter-spacing:-.025em}
h2{font-size:32px;line-height:1.3;margin-bottom:20px}
h3{font-size:19px;font-weight:550;line-height:1.5;margin-bottom:10px}
p{margin-bottom:18px}
.wrap{max-width:1200px;padding-left:28px;padding-right:28px;margin-left:auto;margin-right:auto}
.reading-width{max-width:780px;padding:0 28px;margin:0 auto}
.site-header{min-height:66px;max-width:1200px;margin:auto;padding:12px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.wordmark{color:var(--ink);font-family:var(--sans);font-size:17px;font-weight:400}
.wordmark:hover{text-decoration:none}
.site-header nav{display:flex;gap:24px;font-size:15px;flex-wrap:wrap}
.site-header nav a{color:var(--muted)}
.skip-link{position:fixed;top:-100px;left:20px;background:#fff;padding:12px;z-index:100}
.skip-link:not(:focus){clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap;padding:0}
.skip-link:focus{top:12px}
.hero{text-align:left;padding-top:48px;padding-bottom:28px}
.hero-grid,.hero-footer{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:64px}
.hero-grid{align-items:end}
.hero-intro,.hero-credits{min-width:0}
.hero-footer{align-items:center;margin-top:32px}
.venue{font-size:16px;color:var(--muted);margin-bottom:12px}
.hero h1{font-size:56px;line-height:1.15;color:var(--ink);margin-bottom:16px}
.paper-title{font-family:var(--sans);font-size:26px;line-height:1.4;letter-spacing:-.012em;margin-bottom:0}
.authors{display:flex;flex-direction:row;align-items:flex-start;column-gap:18px;row-gap:6px;font-size:17px;margin:0;flex-wrap:wrap}
.authors span{color:var(--ink)}
.affiliation{display:flex;justify-content:flex-start;margin-top:24px}
.affiliation a{display:block;max-width:100%}
.affiliation img{display:block;width:168px;max-width:100%;height:auto}
.paper-links{display:flex;justify-content:flex-start;align-items:center;column-gap:24px;row-gap:8px;flex-wrap:wrap;font-size:16px}
.hero-summary{font-size:18px;line-height:1.6;color:#4c4c47;margin:0}
.section{padding-top:68px;padding-bottom:8px}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:20px}
.section-heading h2{margin:0}
.eyebrow{font-size:16px;font-weight:400;color:var(--muted);margin:0 0 8px}
.small-note{font-size:15px;line-height:1.7;color:var(--muted);margin-bottom:0}
.case-tabs{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:16px;margin:24px 0 22px}
.case-tabs button{min-width:0;border:0;background:none;padding:0 0 8px;color:var(--muted);font-size:16px;line-height:1.4;text-align:left;border-bottom:2px solid transparent}
.case-tabs button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--blue)}
.example-panel{display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:start}
.video-column{min-width:0;display:flex;flex-direction:column}
.video-frame{position:relative;background:#fff;aspect-ratio:4/3;display:grid;place-items:center;overflow:hidden}
.video-frame video{display:block;width:100%;height:100%;object-fit:contain}
.video-unavailable{position:absolute;inset:0;display:grid;place-items:center;padding:35px;text-align:center;font-size:16px;background:#f4f5f6}
.video-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:15px;color:var(--muted);padding:10px 0 12px;font-variant-numeric:tabular-nums}
.plain-button{border:0;background:transparent;padding:4px 0;font-size:15px;color:var(--blue);line-height:1.5}
.plain-button:hover{text-decoration:underline}
.comparison-controls{display:flex;gap:18px;padding-top:14px;flex-wrap:wrap}
.comparison-controls button{border:0;background:none;padding:2px 0 5px;font-size:15px;color:var(--muted);border-bottom:1px solid transparent}
.comparison-controls button[aria-pressed=true]{color:var(--blue);border-bottom-color:var(--blue)}
.video-column>.small-note{font-size:15px;margin-top:8px}
.dialogue-column{min-width:0;display:flex;flex-direction:column}
.dialogue-topline{display:flex;justify-content:space-between;align-items:center;font-size:15px;font-weight:600;gap:12px;padding-bottom:4px}
.mono{font-size:15px;font-weight:400;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.dialogue{list-style:none;padding:16px 0 0;margin:0}
.dialogue li{margin-bottom:18px;padding:0}
.dialogue li.clarification{color:var(--ink)}
.dialogue li.reply{color:var(--ink)}
.dialogue li.answer{border-left:2px solid var(--blue);padding-left:14px}
.dialogue li.failure{border-left:2px solid #9f8668;padding-left:14px}
.turn-label{font-size:15px;color:var(--muted);margin-bottom:3px}
.turn-text{font-size:16px;line-height:1.65;margin:0}
.turn-note{font-size:15px;color:var(--muted);margin:5px 0 0}
.step-controls{display:flex;align-items:center;gap:18px;padding-top:2px;min-height:30px}
.icon-button{display:inline-grid;place-items:center;width:30px;height:32px;background:none;border:1px solid var(--line);border-radius:3px;font-size:17px}
.step-progress{font-size:15px;color:var(--muted);font-variant-numeric:tabular-nums}
.next-step{font-size:15px;white-space:nowrap}
.replay{font-size:15px;white-space:nowrap;margin-right:auto}
.example-caption{font-size:16px;color:var(--muted);margin:22px 0 8px;line-height:1.75;max-width:900px}
.evidence-details,.result-details{font-size:16px;color:var(--muted)}
summary{cursor:pointer;color:var(--blue);padding:7px 0;list-style-position:outside;margin-left:15px}
details[open]>summary{margin-bottom:13px}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:680px;margin:15px 0}
.evidence-item{padding:0;border:0;background:#fff;text-align:left}
.evidence-item img{width:100%;height:130px;object-fit:contain;display:block}
.evidence-item span{display:block;font-size:15px;padding:7px 0}
.evidence-caption{max-width:760px}
.audit-case{padding-top:12px;border-top:1px solid var(--line);margin-top:20px}
.audit-case summary{color:var(--muted)}
.audit-answer{font-size:16px;max-width:780px}
.method-tabs{display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 0 12px;gap:16px}
.method-tabs button{flex:1;border:0;background:none;padding:8px 0;font-size:15px;white-space:nowrap;text-align:left}
.method-tabs button span{font-variant-numeric:tabular-nums;font-size:15px;margin-right:10px;color:var(--muted)}
.method-tabs button[aria-selected=true]{color:var(--blue);text-decoration:underline;text-underline-offset:7px}
.method-arrow{color:#99a5ae;font-size:15px}
.method-panel{display:block;padding-top:26px}
.method-explanation{padding-top:12px;max-width:760px;font-size:16px}
.method-explanation h3{font-size:24px;font-weight:600;line-height:1.35;letter-spacing:-.015em}
.method-explanation>p:not(.eyebrow){font-size:17px;line-height:1.7;color:#484843}
.method-explanation>p.method-caveat{font-size:16px;color:var(--muted);padding-top:2px}
.results-tabs{display:flex;gap:26px;border-bottom:1px solid var(--line);margin-bottom:25px}
.results-tabs button{border:0;background:none;padding:9px 0 13px;font-size:16px;color:var(--muted);margin-bottom:-1px;border-bottom:2px solid transparent}
.results-tabs button[aria-selected=true]{color:var(--blue);border-bottom-color:var(--blue)}
.chart-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 24px}
.chart-heading h3{font-weight:500;font-size:17px;margin-bottom:3px}
.chart-heading label{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--muted)}
select{border:1px solid #bac8d2;background:#fff;border-radius:3px;padding:6px 26px 6px 9px;color:var(--ink);font-size:15px}
.results-chart{max-width:915px;margin:0 auto 23px}
.chart-row{display:grid;grid-template-columns:195px 1fr 60px;align-items:center;gap:16px;margin-bottom:16px}
.chart-label{font-size:16px;line-height:1.4}
.chart-label small{display:block;font-size:15px;color:var(--muted);margin-top:4px}
.bar-track{height:25px;border-left:1px solid #d0d9df;background:repeating-linear-gradient(to right,transparent,transparent calc(20% - 1px),#ecf0f3 calc(20% - 1px),#ecf0f3 20%)}
.bar{height:25px;background:#cbd5df;min-width:2px}
.bar.highlight{background:#547e9e}
.bar.oracle{background:#d9d0c1}
.chart-value{font-size:16px;font-variant-numeric:tabular-nums}
.chart-value.highlight{color:var(--blue);font-weight:650}
.chart-axis{display:grid;grid-template-columns:195px 1fr 60px;gap:16px}
.chart-ticks{display:flex;justify-content:space-between;font-size:15px;color:var(--muted);margin-bottom:8px}
.chart-axis-label{text-align:center;font-size:15px;color:var(--muted)}
.result-insight{border-top:1px solid var(--line);padding-top:19px;display:grid;grid-template-columns:1.4fr 1fr;gap:45px;margin-top:30px}
.result-insight>p:first-child{font-size:16px;margin-bottom:5px}
.result-insight strong{font-weight:550}
.result-insight>p>span{display:block;color:#52616c;font-size:16px;margin-top:4px}
.result-details{margin-top:14px}
.data-table-wrap{overflow-x:auto}
.data-table{border-collapse:collapse;width:100%;font-size:15px;margin:15px 0}
.data-table th{text-align:left;font-weight:550;padding:9px 12px;border-bottom:1px solid #aab9c5;white-space:nowrap}
.data-table td{padding:9px 12px;border-bottom:1px solid #e5eaee;white-space:nowrap}
.data-table tr.featured-row{background:var(--blue-light)}
.benchmark-bar{display:flex;width:100%;height:24px;gap:3px;margin-bottom:22px}
.standard{background:#c2d3df}
.ambiguous{background:#537d9e}
.unanswerable{background:#d5c8b3}
.citation-section{padding-top:50px;padding-bottom:25px}
.citation-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.citation-heading h2{font-size:25px;margin:0}
.citation-heading>div{display:flex;gap:20px}
pre{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;border-top:1px solid var(--line);padding:18px 0;font-size:15px;line-height:1.8;color:#4c4c47}
#copy-status{height:18px;margin-top:6px}
footer{display:flex;justify-content:space-between;font-size:15px;color:var(--muted);padding-top:25px;padding-bottom:35px;border-top:1px solid var(--line)}
dialog{max-width:min(90vw,800px);border:1px solid var(--line);border-radius:5px;padding:18px;background:#fff;color:var(--ink)}
dialog::backdrop{background:rgba(24,35,44,.52)}
dialog img{display:block;max-width:100%;max-height:70vh;margin:auto}
dialog .icon-button{margin-left:auto;margin-bottom:12px;display:grid}
dialog p{font-size:15px;margin:14px 0 0}
#evidence-content>.small-note{max-width:760px}

.examples-intro{font-size:17px;line-height:1.7;color:var(--muted);max-width:850px;margin-bottom:0}
.case-tabs img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;margin-bottom:9px}
.case-tab-title{display:block}
.case-summary{font-size:17px;line-height:1.65;max-width:900px;margin:0 0 24px;color:#484843}
#video-context{margin:0 0 3px}
@media(max-width:850px){
  .example-panel{gap:28px}
  .case-tabs{gap:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
  .case-tabs button{font-size:16px}
  .dialogue-topline{font-size:16px;align-items:baseline;flex-wrap:wrap;gap:3px}
  .turn-text{font-size:17px}
  .comparison-controls{gap:12px}
  .method-panel{gap:30px}
  .method-tabs{gap:8px}
  .method-tabs button{font-size:16px}
  .method-tabs button span{margin-right:6px}
  .chart-row,.chart-axis{grid-template-columns:180px 1fr 50px;gap:12px}
}
@media(max-width:1000px){
  .hero-grid,.hero-footer{grid-template-columns:1fr;gap:24px}
  .hero-credits{display:flex;align-items:center;justify-content:space-between;gap:24px}
  .authors{flex-direction:row;column-gap:22px;row-gap:6px}
  .affiliation{margin-top:0;flex-shrink:0}
  .hero-footer{margin-top:28px;gap:20px}
}
@media(max-width:620px){
  html{scroll-padding-top:22px}
  .site-header{padding:12px 20px;min-height:60px;gap:14px}
  .wordmark{font-size:15px}
  .site-header nav{gap:10px;font-size:15px}
  .site-header nav a:last-child{display:none}
  .wrap,.reading-width{padding-left:20px;padding-right:20px}
  .hero{padding-top:30px;padding-bottom:24px}
  .hero h1{font-size:clamp(36px,10.8vw,42px);margin-bottom:16px}
  .paper-title{font-size:22px;line-height:1.45}
  .desktop-break{display:none}
  .hero-credits{display:block}
  .authors{font-size:16px;column-gap:12px;row-gap:6px}
  .affiliation{margin-top:20px}
  .paper-links{column-gap:22px;row-gap:9px;font-size:16px}
  .hero-summary{font-size:17px;line-height:1.65;margin:0}
  .hero-footer{margin-top:24px;gap:18px}
  .hero-summary br{display:none}
  h2{font-size:28px}
  .section-heading{display:block;margin-bottom:17px}
  .section-heading>.small-note{margin-top:8px;display:block}
  .examples-intro{font-size:16px}
  .case-tabs{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px 16px;margin-top:20px}
  .case-summary{font-size:16px;margin-bottom:20px}
  .example-panel{grid-template-columns:1fr;gap:24px}
  .comparison-controls{gap:16px;padding-top:9px}
  .video-meta{align-items:baseline}
  #video-window{max-width:235px}
  #play-clip{white-space:nowrap}
  .dialogue-topline{font-size:15px;justify-content:space-between;flex-wrap:nowrap;gap:12px}
  .turn-text{font-size:16px}
  .dialogue li{margin-bottom:18px}
  .example-caption{font-size:16px;margin-top:20px}
  .evidence-grid{grid-template-columns:1fr;max-width:360px;gap:18px}
  .evidence-item img{height:auto;max-height:240px;object-fit:contain}
  .evidence-item span{padding-top:5px}
  .section{padding-top:48px}
  .method-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px 22px}
  .method-arrow{display:none}
  .method-tabs button{font-size:15px;padding:8px 0}
  .method-panel{display:flex;flex-direction:column;gap:15px;padding-top:20px}
  .method-explanation h3{font-size:24px}
  .method-explanation>p:not(.eyebrow){font-size:16px}
  .results-tabs{gap:20px}
  .results-tabs button{font-size:15px;padding-bottom:11px;text-align:left}
  .chart-heading{align-items:flex-start;gap:12px;flex-direction:column}
  .chart-heading h3{font-size:17px}
  .chart-row,.chart-axis{grid-template-columns:126px 1fr 44px;gap:8px}
  .chart-label{font-size:15px}
  .chart-label small{font-size:15px}
  .chart-value{font-size:15px}
  .chart-ticks,.chart-axis-label{font-size:15px}
  .bar,.bar-track{height:24px}
  .result-insight{grid-template-columns:1fr;gap:9px;margin-top:22px}
  .citation-section{padding-top:35px}
  .citation-heading>div{gap:14px}
  .citation-heading .plain-button{font-size:15px}
  pre{font-size:15px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

.examples-section{padding-top:68px}
@media(max-width:620px){.examples-section{padding-top:48px}}

.setting-section{padding-top:56px}
.setting-intro{max-width:870px;font-size:16px;color:#484843}
.setting-rules{display:grid;grid-template-columns:1fr 1fr;gap:45px;font-size:16px;line-height:1.8;color:#484843}
.setting-rules strong{font-weight:600;color:var(--ink)}
.results-tabs{flex-wrap:wrap;row-gap:0}
.core-result-note{font-size:16px;color:#484843;line-height:1.8;border-top:1px solid var(--line);padding-top:16px;margin:22px 0 8px}
@media(max-width:620px){
 .setting-section{padding-top:40px}
 .setting-intro{font-size:17px}
 .setting-rules{grid-template-columns:1fr;gap:0}
 .results-tabs{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
 .results-tabs button{font-size:15px}
}