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.research-questions{border-top:1px solid var(--line)}.question-row{display:grid;grid-template-columns:42px 210px minmax(0,1fr) 160px;gap:20px;border-top:1px solid var(--line);padding:26px 0;align-items:start}.question-row>span{font:11px var(--mono);color:var(--muted);padding-top:5px}.question-row h3{font-size:23px;line-height:1.25;margin:0;letter-spacing:-.025em}.question-row p{font-size:14px;color:var(--muted);margin:0}.question-row>a{font:10px/1.6 var(--mono);text-align:right;line-height:1.8;padding-top:4px}.repair-comparison{border-left:3px solid var(--green);padding-left:18px}.repair-comparison h4{font-size:16px;margin-top:22px}.repair-comparison p{font-size:13px;color:var(--muted)}
@media(max-width:1100px){.question-row{grid-template-columns:30px 190px minmax(0,1fr);gap:17px}.question-row>a{grid-column:3;text-align:left;padding-top:0}}
@media(max-width:800px){.question-row{grid-template-columns:26px 1fr;gap:12px 15px}.question-row h3{font-size:23px}.question-row p,.question-row>a{grid-column:2}.question-row p{font-size:14px}.question-row>a{margin-top:5px}}
.snapshot-link{margin-top:22px}.snapshot-link code{display:inline-block;margin-top:9px;color:var(--muted);font-size:10px;overflow-wrap:anywhere}
.context-toolbar{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);align-items:center;gap:28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;margin-top:31px}.context-toolbar label{font:10px/1.6 var(--mono);text-transform:uppercase;letter-spacing:.04em;color:var(--muted);min-width:0}.context-toolbar select{font-size:12px;max-width:100%;text-transform:none;letter-spacing:0}.context-toolbar p{margin:15px 0 0;color:var(--muted);font-size:12px;line-height:1.7}.context-caption{font:11px/1.8 var(--mono);color:var(--muted)}.manifest-diff{max-height:440px;overflow:auto}.audit-table{font-size:12px}.audit-table td{padding:14px 10px}.audit-table th{font-size:9px;padding-inline:10px}.audit-table code{font-size:11px}.audit-note,.instance-note{font-size:12px!important;line-height:1.75;color:var(--muted)}.audit-note{margin-top:15px}.audit-json{max-height:430px;overflow:auto}.registry-links,.artifact-links{font:11px/1.9 var(--mono);overflow-wrap:anywhere}.registry-links a,.artifact-links a{text-decoration:underline;text-underline-offset:3px}.attempt-links article{border-top:1px solid var(--line);padding:20px 0}.attempt-links h4{font:12px var(--mono);margin-bottom:15px}.attempt-links .text-link{display:inline-block;margin:12px 13px 0 0;font-size:12px}.run-evidence .button{font-size:12px}.instance-note{margin-bottom:12px}
@media(max-width:650px){.context-toolbar{grid-template-columns:1fr;gap:0}.context-toolbar p{font-size:11px;margin-top:11px}.context-toolbar select{font-size:11px}.audit-table{min-width:560px}.manifest-diff{max-height:360px}.attempt-links .button{width:100%;justify-content:center}.attempt-links .text-link{display:block}}
.instance-layout>*,.prose-layout>*,.evidence-intro>*,.dependency-columns>*,.filters>*,.task-row>*,.run-metrics{min-width:0}.table-scroll{min-width:0;max-width:100%}.task-summary h2{overflow-wrap:anywhere}
@media(max-width:800px){.instance-layout,.prose-layout,.evidence-intro,.dependency-columns{grid-template-columns:minmax(0,1fr)}.filters{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.context-toolbar{grid-template-columns:minmax(0,1fr)}}

/* Research benchmark shell. Segoe UI and compact, evidence-first layouts. */
:root {
  --paper:#f8f9fb; --surface:#fff; --ink:#252d3d; --muted:#687386; --line:#e0e5ec;
  --green:#2563eb; --green-soft:#eaf1ff; --oxide:#a46915; --dark:#172335;
  --sidebar-paper:#f5f7fa; --banner:#1976c9; --banner-text:#fff;
  --notice-paper:#fff8e9; --notice-ink:#795616;
  --sh-line-2:#edf0f5; --lb-bar:#397cff; --sidebar-width:250px;
  --container-width:1340px; --content-padding:clamp(24px,3.3vw,52px);
}
@media(prefers-color-scheme:dark) {
  :root:not([data-theme=light]) {
    --paper:#0f1419; --surface:#161c24; --ink:#e4e9f0; --muted:#9ba7b7; --line:#2a3340;
    --green:#8cb4ff; --green-soft:#1c2a3f; --oxide:#e0b062; --dark:#0b0f14; --sidebar-paper:#12181f;
    --banner:#16202d; --banner-text:#e4e9f0; --notice-paper:#2a2519; --notice-ink:#e2c27c;
    --sh-line-2:#1f2731; --lb-bar:#5b8def;
  }
  :root:not([data-theme=light]) .leaderboard-banner{border-bottom:1px solid var(--line)}
  :root:not([data-theme=light]) .banner-meta{color:var(--muted)}
  :root:not([data-theme=light]) .provider-icon{background:#e3e8ef;border-color:var(--line)}
  :root:not([data-theme=light]) .resource-card:hover{border-color:#3d5378}
  :root:not([data-theme=light]) .task-summary h2 a{color:var(--ink)}
  :root:not([data-theme=light]) .task-summary h2 a:hover{color:var(--green)}
  :root:not([data-theme=light]) .nav-dot{background:#5b8def}
}
:root[data-theme=dark] {
    --paper:#0f1419; --surface:#161c24; --ink:#e4e9f0; --muted:#9ba7b7; --line:#2a3340;
    --green:#8cb4ff; --green-soft:#1c2a3f; --oxide:#e0b062; --dark:#0b0f14; --sidebar-paper:#12181f;
    --banner:#16202d; --banner-text:#e4e9f0; --notice-paper:#2a2519; --notice-ink:#e2c27c;
    --sh-line-2:#1f2731; --lb-bar:#5b8def;
}
:root[data-theme=dark] .leaderboard-banner{border-bottom:1px solid var(--line)}
:root[data-theme=dark] .banner-meta{color:var(--muted)}
:root[data-theme=dark] .provider-icon{background:#e3e8ef;border-color:var(--line)}
:root[data-theme=dark] .resource-card:hover{border-color:#3d5378}
:root[data-theme=dark] .task-summary h2 a{color:var(--ink)}
:root[data-theme=dark] .task-summary h2 a:hover{color:var(--green)}
:root[data-theme=dark] .nav-dot{background:#5b8def}
body {font:400 16px/1.65 var(--sans);font-synthesis:none;letter-spacing:normal;color:var(--ink);background:var(--paper)}
h1,h2,h3,h4 {font-weight:600;letter-spacing:-.015em}
a {text-underline-offset:3px}
a:hover {color:var(--green)}
button,input,select {font-family:var(--sans)}
:focus-visible {outline:2px solid var(--green);outline-offset:3px}
::selection {background:var(--green-soft);color:var(--ink)}
.icon-definitions {position:absolute;width:0;height:0;overflow:hidden;pointer-events:none}
.ui-icon {width:18px;height:18px;display:inline-block;vertical-align:middle;flex-shrink:0}
.sr-only {position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip {position:fixed;top:-100px;left:12px;z-index:100;background:var(--surface);color:var(--ink);border:1px solid var(--green);border-radius:4px}
.skip:focus {top:12px}
.sidebar {position:fixed;inset:0 auto 0 0;width:var(--sidebar-width);z-index:40;display:flex;flex-direction:column;background:var(--sidebar-paper);border-right:1px solid var(--line);overflow-y:auto}
.sidebar-header {display:flex;align-items:center;justify-content:space-between;gap:10px;padding:21px 22px;border-bottom:1px solid var(--line)}
.sidebar-logo,.mobile-logo {display:flex;align-items:center;gap:9px;font-size:25px;font-weight:600;letter-spacing:-.7px;color:var(--ink)}
.sidebar-logo img,.mobile-logo img {display:block;flex-shrink:0}
.sidebar-nav {display:block;padding:20px 14px 25px;flex:1;font-weight:400}
.sidebar-nav ul {list-style:none;margin:0;padding:0}
.sidebar-nav li {margin:2px 0}
.sidebar-nav a {display:flex;align-items:center;gap:11px;white-space:normal;padding:8px 12px;color:var(--ink);border-radius:6px;font-size:16px;line-height:1.4;border:1px solid transparent;min-height:40px}
.sidebar-nav a .ui-icon {color:var(--muted);width:17px;height:17px}
.sidebar-nav a::after {display:none}
.sidebar-nav a:hover {background:var(--green-soft);color:var(--green)}
.sidebar-nav a[aria-current=page] {background:var(--green-soft);color:var(--green);font-weight:600;border-color:var(--line)}
.sidebar-nav a[aria-current=page] .ui-icon {color:var(--green)}
.nav-section-title {padding:18px 12px 8px;text-transform:uppercase;font-size:13px;letter-spacing:.04em;font-weight:600;color:var(--ink)}
.sidebar-nav .nav-split {padding:6px 14px 6px 41px;font-size:15px;min-height:32px;color:var(--muted)}
.sidebar-nav .nav-split.active {color:var(--green);font-weight:600;background:var(--green-soft)}
.nav-dot {width:5px;height:5px;border-radius:50%;background:#6b9cec;margin-left:auto}
.sidebar-nav .nav-external {margin-left:auto;width:13px;height:13px;color:var(--green)}
.sidebar-footer {position:sticky;bottom:0;background:var(--sidebar-paper);display:flex;align-items:center;justify-content:space-between;gap:8px;padding:18px 20px;border-top:1px solid var(--line)}
.sidebar-institution {font-size:13px;color:var(--muted);line-height:1.65}
.theme-toggle {display:grid;place-items:center;width:32px;height:32px;padding:0;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--muted)}
.theme-toggle .ui-icon{width:17px;height:17px}
.theme-toggle[data-appearance=light] .ui-icon:last-child,.theme-toggle[data-appearance=dark] .ui-icon:first-child{display:none}
.mobile-header,.sidebar-opener,.mobile-nav-toggle,.sidebar-overlay{display:none}
.main-content{margin-left:var(--sidebar-width);min-height:100vh;display:flex;flex-direction:column}
.main-content>main{flex:1;min-width:0}
.container,.main-content .wrap{width:100%;max-width:var(--container-width);padding-inline:var(--content-padding);margin-inline:auto}
.leaderboard-banner{background:var(--banner);color:var(--banner-text);padding:23px var(--content-padding) 19px;text-align:center}
.banner-title{display:flex;justify-content:center;align-items:center;gap:15px}
.banner-title img{filter:drop-shadow(0 2px 1px #07396730)}
.banner-title h1{font-size:34px;line-height:1.2;margin:0 0 5px;font-weight:600;letter-spacing:-.7px}
.banner-title p{font-size:16px;opacity:.94;margin:0}
.banner-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:0;align-items:center;margin-top:10px;font-size:13px;color:#f1f7ff}
.banner-meta span+span::before{content:'·';padding:0 10px;opacity:.6}
.content-section{padding:28px 0}
.leaderboard-section{padding-top:20px}
.leaderboard-tabs{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);margin-bottom:15px}
.leaderboard-tab-list{display:flex;gap:6px;overflow-x:auto;scrollbar-width:thin}
.tablinks{background:none;border:0;border-bottom:2px solid transparent;padding:13px 15px 12px;font:16px/1.5 var(--sans);color:var(--muted);white-space:nowrap;flex-shrink:0}
.tablinks:hover{color:var(--green)}
.tablinks.active{color:var(--green);border-color:var(--green);font-weight:600}
.protocol-link{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);white-space:nowrap}
.protocol-link .ui-icon{width:15px;height:15px}
.research-notice{margin-bottom:14px;padding:10px 13px;background:var(--notice-paper);border:1px solid var(--line);border-left:3px solid #dfa538;border-radius:4px;color:var(--notice-ink)}
.research-notice p{font-size:14px;line-height:1.6;margin:0;max-width:none}
.research-notice strong{font-weight:600}
.research-notice a{color:inherit;text-decoration:underline;margin-left:4px}
.research-notice .ui-icon{width:12px;height:12px}
.board-blurb{font-size:15px;line-height:1.65;color:var(--muted);margin:0 0 13px;max-width:none}
.board-blurb i{font-weight:500;color:var(--ink)}
.board-blurb a{color:var(--green);margin-left:3px}
.board-toolbar{display:flex;align-items:center;gap:12px;margin:0 0 11px}
.model-search{display:flex;align-items:center;gap:8px;padding:0 11px;background:var(--surface);border:1px solid var(--line);border-radius:6px;width:300px;color:var(--muted)}
.model-search input{margin:0;border:0;background:transparent;min-height:42px;padding:8px 0;width:100%;font-size:14px;border-radius:0}
.model-search .ui-icon{width:15px;height:15px}
.model-search:focus-within{outline:2px solid var(--green);outline-offset:1px}.model-search input:focus-visible{outline:0}
.board-count{font-size:14px;white-space:nowrap;color:var(--muted)}
.board-sort{display:flex;align-items:center;gap:6px;margin-left:auto;color:var(--muted)}
.board-sort .ui-icon{width:16px;height:16px}
.board-sort select{margin:0;min-height:42px;border-radius:5px;padding:7px 25px 7px 9px;font-size:14px;background:var(--surface);width:auto;max-width:190px}
.results-download{display:inline-flex;align-items:center;gap:7px;padding:8px 11px;font-size:14px;line-height:1.6;border:1px solid var(--line);border-radius:5px;background:var(--surface);color:var(--green)}
.results-download .ui-icon{width:15px;height:15px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 3px 8px #14253f06;scrollbar-width:thin}
table.lb{width:100%;min-width:880px;border-collapse:collapse;font:16px/1.4 var(--sans);color:var(--ink)}
table.lb th{font:600 13px/1.5 var(--sans);letter-spacing:normal;text-transform:none;color:var(--muted);padding:13px 12px;background:var(--sidebar-paper);border-top:0;border-bottom:1px solid var(--line);white-space:nowrap}
table.lb td{padding:14px 12px;border-bottom:1px solid var(--sh-line-2);vertical-align:middle}
table.lb tbody tr:last-child td{border-bottom:0}
table.lb tbody tr:hover td{background:var(--green-soft)}
table.lb .c-rank{width:36px;text-align:center;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
table.lb .c-model{min-width:240px}
.model-identity{display:flex;align-items:center;gap:10px}
.provider-icon{display:grid;place-items:center;width:31px;height:31px;flex-shrink:0;border:1px solid #e6e9ee;border-radius:7px;background:#fff;color:#26334b}
.provider-icon img{object-fit:contain;width:22px;height:22px}
table.lb .m-name{font-size:16px;font-weight:600;line-height:1.4;color:var(--ink);text-decoration:none}
table.lb a.m-name:hover{color:var(--green);text-decoration:underline}
.m-variant{font-size:13px;color:var(--muted)}
.model-provider{display:block;font-size:13px;color:var(--muted);margin-top:3px}
table.lb .c-agent{font-size:14px;color:var(--muted)}
.agent-label{display:flex;align-items:center;gap:5px;white-space:nowrap}
.agent-label .ui-icon{width:14px;height:14px;opacity:.75}
table.lb .c-num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums;font-size:16px}
table.lb th.c-num{font-size:13px}
table.lb .c-score{min-width:104px}
table.lb .score{display:block;font-weight:600}
table.lb .bar{display:block;width:86px;height:4px;margin:5px 0 0 auto;background:var(--green-soft);border-radius:3px;overflow:hidden}
table.lb .bar span{display:block;height:100%;background:var(--lb-bar);border-radius:3px}
table.lb .c-link{text-align:center;width:66px}
table.lb .c-link a{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:4px;color:var(--green);text-decoration:none}
table.lb .c-link a:hover{background:var(--green-soft)}
table.lb .c-link .ui-icon{width:16px;height:16px}
table.lb .c-date{font:13px var(--sans);color:var(--muted);white-space:nowrap}
.search-empty td{padding:25px!important;text-align:center;color:var(--muted);font-size:16px}
.search-empty button{border:0;background:none;color:var(--green);padding:0;font:inherit;text-decoration:underline}
table.lb .no-results td{padding:32px;color:var(--muted);line-height:1.8;font-size:16px}
table.lb .no-results strong{color:var(--ink);display:inline-block;margin:0 0 7px}
table.lb .no-results .ui-icon{display:block;width:32px;height:32px;color:var(--green);margin-bottom:14px}
table.lb .no-results a{color:var(--green)}
.table-wrap:has(.no-results) table.lb{min-width:0}
.table-wrap:has(.no-results) thead{display:none}
.variants,.variants[open]{padding:0;margin:5px 0 0;background:none;border:0;color:var(--muted);font-size:13px}
.variants summary{cursor:pointer;color:var(--green)}
.variants table{min-width:0;font-size:13px;margin-top:8px}.variants td{padding:5px!important;overflow-wrap:anywhere}
.table-legend{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:14px;font-size:13px;color:var(--muted)}
.table-legend>span{display:flex;align-items:center;gap:6px}.table-legend .ui-icon{color:var(--green);width:15px;height:15px}
.lb-notes{font-size:14px;color:var(--muted);line-height:1.7;margin-top:18px}
.lb-notes p{margin:0 0 10px;max-width:none}.lb-notes b{color:var(--ink);font-weight:600}
.lb-notes a,.pilots a{color:var(--green);text-decoration:underline}
.lb-notes .mono{font-size:13px}
.pilots{margin-top:20px;border-top:1px solid var(--line);padding-top:15px;overflow-x:auto;font-size:14px}
.pilots summary{cursor:pointer;color:var(--green)}.pilots p{margin-top:13px;color:var(--muted)}
table.lb-small{min-width:700px;background:var(--surface);border:1px solid var(--line);margin-top:12px}
.project-resources{padding:28px 0 10px;border-top:1px solid var(--line)}
.resources-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}
.resources-heading h2{font-size:24px;margin:0}.resources-heading>a{display:flex;align-items:center;gap:7px;color:var(--green);font-size:15px}
.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.resource-card{display:block;padding:23px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.resource-card:hover{border-color:#a9c4ee;color:var(--ink)}
.resource-card>.ui-icon{color:var(--green);width:25px;height:25px;margin-bottom:16px}
.resource-card h3{font-size:17px;margin:0 0 10px}.resource-card p{font-size:15px;color:var(--muted);line-height:1.7;margin:0 0 17px}
.resource-card>span{font-size:14px;color:var(--green);display:flex;align-items:center;gap:8px}.resource-card>span .ui-icon{width:14px;height:14px}
.research-byline{margin-top:30px;padding-top:25px;border-top:1px solid var(--line);font-size:15px;color:var(--muted)}
.research-byline p{margin:0 0 6px}.research-byline strong{color:var(--ink)}
.research-byline>div{display:flex;gap:24px;flex-wrap:wrap;margin-top:17px}
.research-byline a{display:flex;align-items:center;gap:6px;color:var(--green);font-size:14px}.research-byline .ui-icon{width:15px;height:15px}
.site-footer{width:calc(100% - 2 * var(--content-padding));max-width:calc(var(--container-width) - 2 * var(--content-padding));margin:30px auto 0;border-top:1px solid var(--line);padding:22px 0 26px;display:flex;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.site-footer a{color:var(--green)}
/* Shared reading pages. */
.content-section-title{font-size:26px;margin:0 0 20px}
.content-section p{line-height:1.7}
.masthead-plain{padding:42px 0 30px;border-bottom:1px solid var(--line)}
.masthead-plain h1{font-size:36px;line-height:1.2;max-width:850px;margin-bottom:18px}
.masthead-plain .tagline{font-size:18px;color:var(--muted);margin-bottom:16px}
.byline{font-size:15px;color:var(--muted);max-width:760px}.byline b{font-weight:500;color:var(--ink)}
.masthead-plain .links{display:flex;flex-wrap:wrap;gap:12px 22px;font-size:16px;color:var(--green);margin-top:20px}
.masthead-plain .links a,.resource-list a{text-decoration:underline}
.container>hr{border:0;border-top:1px solid var(--line);margin:0}
.teaser{margin:0 0 28px;padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:8px}
.teaser svg{width:100%;height:auto;display:block;color:var(--ink)}
.teaser figcaption{font-size:14px;color:var(--muted);margin-top:12px}
.resource-list{font-size:16px;line-height:1.8}.bibtex{font:14px/1.8 var(--mono);border-radius:6px}
.news-timeline{list-style:none;margin:0;padding:0}
.news-item{display:grid;grid-template-columns:100px 1fr;gap:20px;padding:16px 0;border-bottom:1px solid var(--line);font-size:16px}
.news-date{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}.news-marker{display:none}
.news-link{color:var(--green);text-decoration:underline;margin-left:5px}
.page-intro{padding-top:42px;padding-bottom:30px}.page-intro .eyebrow{font:600 13px var(--sans);letter-spacing:.06em;color:var(--muted);margin-bottom:20px}
.page-intro h1{font-size:42px;line-height:1.15;max-width:850px;margin-bottom:22px}.page-intro .lede{font-size:17px;max-width:800px}
.prose-layout{grid-template-columns:180px minmax(0,1fr);gap:40px}.prose-layout aside{font-size:15px}.prose h2{font-size:26px;line-height:1.3}.prose p,.prose li{font-size:16px}
.large-note{font-size:24px}.notice{border-left-width:3px;border-radius:0 5px 5px 0;font-size:15px}
.filters{gap:18px;padding-top:24px}.filters label{font:15px var(--sans)}
input,select{border-radius:5px;background:var(--surface);font-size:16px}input::placeholder{color:var(--muted);opacity:1}
.task-row{grid-template-columns:85px minmax(0,1fr) 120px;gap:18px;padding:25px 0}
.task-summary h2{font-size:21px;line-height:1.3}.task-summary .repo{font-size:14px}.task-state{font-size:13px}
.badge{font:13px/1.5 var(--sans);border-radius:4px}.task-row .signature-preview{font-size:13px}
.instance-layout{grid-template-columns:150px minmax(0,1fr);gap:35px}.instance-head h1{font-size:clamp(30px,3.5vw,43px)}
.task-section h2{font-size:27px}pre,.task-section pre{border-radius:6px}
.task-identity,.instance-id,.back-link,.instance-nav>a,.facts dt{font-size:13px;line-height:1.6}
.instance-meta,.instance-actions,.task-state>a,.reading-note,.prose-layout aside{font-size:14px}
.facts code,.task-section pre,.task-section summary,.task-section details>pre{font-size:13px;line-height:1.7}
.list-meta,.audit-note,.instance-note,.registry-links,.artifact-links{font-size:14px!important;line-height:1.7}
@media(max-width:1150px){.protocol-link{display:none}.sidebar{--sidebar-width:230px}:root{--sidebar-width:230px}.sidebar-header{padding-inline:19px}.sidebar-nav{padding-inline:10px}.board-toolbar{gap:8px}.model-search{width:260px}.board-count{font-size:13px}}
@media(max-width:900px){
  :root{--content-padding:24px;--sidebar-width:260px}html{scroll-padding-top:78px}
  .main-content{margin-left:0}.sidebar{width:260px;max-width:calc(100vw - 36px);transform:translateX(-100%);visibility:hidden;transition:transform .2s ease}
  .sidebar.open{transform:none;visibility:visible;box-shadow:15px 0 50px #0003}
  .sidebar-overlay.open{display:block;position:fixed;inset:0;background:#11243e70;z-index:35}
  body.menu-open{overflow:hidden}
  .mobile-header{display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:30;padding:11px 22px;background:var(--surface);border-bottom:1px solid var(--line)}
  .mobile-logo{font-size:23px}.sidebar-header{padding:17px 18px}
  .sidebar-opener,.mobile-nav-toggle{display:grid;place-items:center;width:36px;height:36px;padding:0;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:5px}
  .prose-layout,.instance-layout,.evidence-intro{grid-template-columns:minmax(0,1fr);gap:25px}
  .instance-nav{position:static;display:none}
  .sidebar-nav .nav-split{min-height:37px}
}
@media(max-width:600px){
  :root{--content-padding:18px}
  .mobile-header{padding:10px 18px}
  .leaderboard-banner{padding:19px 16px 17px}.banner-title{gap:9px}.banner-title img{width:48px;height:48px}
  .banner-title h1{font-size:24px;letter-spacing:-.25px}.banner-title p{font-size:13px;line-height:1.5}
  .banner-meta{font-size:13px;margin-top:11px}.banner-meta span+span::before{padding:0 8px}
  .leaderboard-section{padding-top:10px}.leaderboard-tabs{margin-bottom:12px}.leaderboard-tab-list{gap:0;width:100%}
  .tablinks{font-size:15px;padding:12px 13px}.board-blurb{font-size:14px}
  .research-notice{padding:9px 10px;margin-bottom:12px}.research-notice p{font-size:14px}
  .board-toolbar{flex-wrap:wrap;gap:9px}.model-search{width:calc(100% - 75px);flex:1 1 auto}
  .board-count{font-size:13px;width:76px;text-align:right}.board-sort{margin-left:0;flex:1}.board-sort select{flex:1;max-width:none}.results-download{margin-left:auto}
  .table-wrap{border-radius:6px}.table-legend{font-size:13px}.lb-notes{font-size:14px}
  .resource-grid{grid-template-columns:minmax(0,1fr)}.resource-card{padding:20px}
  .resources-heading h2{font-size:23px}.resources-heading>a{font-size:13px}.resources-heading .ui-icon{width:14px;height:14px}
  .research-byline{font-size:14px}.research-byline>div{gap:13px}.research-byline a{font-size:13px}
  .site-footer{font-size:13px;line-height:1.8;margin-top:20px}
  .page-intro{padding-top:28px}.page-intro h1{font-size:34px}.page-intro .lede{font-size:16px}
  .task-row{grid-template-columns:60px minmax(0,1fr);gap:12px}.task-state{grid-column:2;flex-direction:row;flex-wrap:wrap;align-items:center;gap:12px}.task-state>a{margin:0}
  .task-summary h2{font-size:19px}.list-meta{flex-direction:column;gap:5px;font-size:13px}
  .filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.filters .search-label{grid-column:1/-1}
  .news-item{grid-template-columns:1fr;gap:6px}.teaser{padding:10px;overflow-x:auto}.teaser svg{min-width:550px}
  .masthead-plain{padding-top:30px}.masthead-plain h1{font-size:29px}.masthead-plain .tagline{font-size:16px}
  .metric-definitions>div{grid-template-columns:minmax(0,1fr);gap:12px}
}
@media(prefers-reduced-motion:reduce){.sidebar{transition:none}html{scroll-behavior:auto}}
/* Research front matter follows the same identity as the leaderboard. */
.masthead-plain{text-align:center;padding-top:35px;padding-bottom:32px}
.project-title{display:flex;align-items:center;justify-content:center;gap:13px;margin-bottom:15px}
.project-title h1{font-size:43px;letter-spacing:-1px;margin:0}
.masthead-plain .tagline{max-width:none;margin:0 0 15px;font-size:20px;color:var(--ink)}
.masthead-plain .byline{margin:0 auto;max-width:850px;line-height:1.8}
.masthead-plain .links{justify-content:center;gap:10px;margin-top:21px}
.masthead-plain .links a{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;text-decoration:none;border:1px solid var(--line);border-radius:5px;background:var(--surface);font-size:14px}
.masthead-plain .links a:hover{border-color:var(--green)}
.masthead-plain .links .ui-icon{width:15px;height:15px}
@media(max-width:600px){.project-title img{width:55px;height:55px}.project-title h1{font-size:35px}.masthead-plain .tagline{font-size:18px}.masthead-plain .byline{font-size:14px}.masthead-plain .links{gap:8px}.masthead-plain .links a{font-size:13px;padding:6px 9px}}
@media(max-width:600px){
  table.lb:not(.lb-small){min-width:780px}
  table.lb:not(.lb-small) .c-agent{display:none}
  table.lb:not(.lb-small) .c-model{min-width:180px;width:180px;max-width:180px}
  table.lb:not(.lb-small) .model-identity{gap:8px}
  table.lb:not(.lb-small) .c-rank{width:30px;padding-inline:8px}
  table.lb:not(.lb-small) .m-variant{display:block;font-size:13px}
  table.lb:not(.lb-small) .model-provider{font-size:13px}
  .table-wrap:has(.no-results) table.lb:not(.lb-small){min-width:0}
}
.board-list{margin:18px 0 0}.board-list dt{font:600 15px/1.4 var(--sans);color:var(--ink);margin-top:20px}.board-list dt .badge{font-size:11px;margin-left:8px;vertical-align:middle}.board-list dd{color:var(--muted);margin:6px 0 0}.board-blurb .badge{font-size:11px;margin-left:4px}
table.lb .c-clean small{display:block;font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}