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span{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.task-count img{object-fit:contain;flex-shrink:0}.external-icon{display:inline-block;width:1em;height:1em;vertical-align:-.15em;flex-shrink:0;fill:currentColor}.row-arrow{grid-column:3;grid-row:1;display:inline-flex;align-items:center;justify-content:center;line-height:1;padding-top:2px}.row-arrow .external-icon{width:22px;height:22px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.tabs{border-bottom:1px solid var(--line);display:flex;gap:22px;margin:30px 0 22px;overflow:auto}.tabs button{white-space:nowrap;flex-shrink:0;border:0;border-bottom:2px solid transparent;background:none;padding:12px 0;color:var(--muted);font-size:14px}.tabs button[aria-selected=true]{border-color:var(--ink);color:var(--ink)}#task-panel{min-height:300px;padding-bottom:40px}.trial-table{font-size:14px}.trial-table td{white-space:nowrap}.trial-table th a{font-weight:500}.trace-link{text-decoration:underline;text-underline-offset:4px}.pass-label{color:#337064}.prose{max-width:900px;overflow-wrap:anywhere}.prose p{margin:12px 0}.prose h2,.prose h3,.prose h4{margin-top:32px}.prose code:not(pre code){background:var(--soft);padding:2px 4px;font-size:.88em}.list-line{padding-left:16px;text-indent:-12px;margin:5px 0}.source-description{max-width:900px}.source-browser{margin-top:24px}.source-label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}select{max-width:100%;padding:10px 34px 10px 12px;border:1px solid var(--line);border-radius:3px;background:white;color:var(--ink);font-size:14px}.source-browser select{width:100%;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.file-bar{margin-top:16px;background:var(--soft);border:1px solid var(--line);padding:10px 14px;display:flex;justify-content:space-between;gap:15px;font-size:13px}.file-bar>span{overflow-wrap:anywhere}.quiet-button{background:none;border:1px solid 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var(--line);scroll-margin-top:78px}.turn-heading{display:flex;align-items:baseline;justify-content:space-between;gap:15px;font-size:16px;font-weight:600;margin-bottom:16px}.turn-heading>span{font-size:12px;font-weight:400;color:var(--muted)}.assistant-message{white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;line-height:1.7;max-width:100%;margin-bottom:18px}.reasoning{border:0;background:var(--soft);padding:12px 16px;margin-bottom:12px}.reasoning .assistant-message{font-size:14px;margin:0}.tool-block{border:1px solid var(--line);margin:12px 0}.tool-heading{display:flex;justify-content:space-between;gap:20px;padding:9px 14px;background:var(--soft);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px}.tool-heading span{font-size:12px;color:var(--muted)}.tool-block details{padding:11px 14px}.tool-block .code{border:0;margin:6px 0 0;padding:12px;max-height:640px;background:#f8f8f6}.tool-block 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.leaderboard tbody th{white-space:nowrap}
.difficulty-table tbody{font-size:19px}.difficulty-model{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}.difficulty-model img{object-fit:contain}.task-family-heading h2{margin:0}
.evidence-figure{margin:30px 0 34px}.evidence-figure>a{display:block;border:1px solid var(--line);background:#fafafa;line-height:0}.evidence-figure img{width:100%;height:auto;display:block}.evidence-figure figcaption{margin-top:12px;font-size:13px;line-height:1.6;color:var(--muted)}.blog blockquote{margin:24px 0;padding:4px 0 4px 22px;border-left:3px solid var(--ink);font-size:18px;line-height:1.65}.blog .wide-figure{width:calc(100% + 234px);margin-left:-234px;background:#fff;position:relative}.blog-toc{z-index:1}.blog .evidence-figure figcaption a{color:var(--ink)}
.blog{max-width:1280px}.blog .wide-figure{width:100%;margin-left:0}
.article-blog{max-width:1180px}.article-blog .blog-layout{display:block;margin-top:30px}.article-blog .blog-toc{position:static;display:flex;flex-wrap:wrap;gap:12px 26px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:34px}.article-blog .blog-toc a{padding:0}.article-blog article p,.article-blog article blockquote,.article-blog .research-bets{max-width:840px}.article-blog .article-section{margin:48px 0;padding:0;border:0}.article-blog .article-section:first-child{margin-top:0}.article-blog article h2{margin:0 0 18px;padding-top:0}.article-blog .evidence-figure{margin:26px 0}.article-blog .dataset-table{margin:28px 0}.dataset-table table{min-width:850px;font-size:14px}.dataset-table caption{text-align:left;font-size:14px;color:var(--muted);padding-bottom:12px}.dataset-table td:nth-child(2),.dataset-table td:nth-child(3){text-align:left;min-width:190px}.dataset-table td:nth-child(3){min-width:240px}.dataset-table th:first-child{white-space:nowrap}.dataset-table tr:last-child{font-weight:600}.research-bets{padding-left:22px;font-size:17px;line-height:1.8}.research-bets li{margin:8px 0}.article-blog .task-prompt{background:var(--soft);padding:10px 22px;font-size:16px}.article-blog .task-prompt p{font-size:16px}
@media(max-width:1100px){.blog-layout{grid-template-columns:1fr;gap:30px}.blog-toc{position:static;display:flex;flex-wrap:wrap;gap:12px 22px;padding-bottom:20px;border-bottom:1px solid var(--line)}.blog-toc a{padding:0}}
.numbered-code .c,.numbered-code .c1,.numbered-code .cm,.numbered-code .ch{color:#6d7f74;font-style:italic}.numbered-code .k,.numbered-code .kn,.numbered-code .kd,.numbered-code .kc,.numbered-code .ow{color:#8a3c80;font-weight:600}.numbered-code .s,.numbered-code .s1,.numbered-code .s2,.numbered-code .sd,.numbered-code .sa{color:#317660}.numbered-code .nf,.numbered-code .nc,.numbered-code .nb{color:#2c6395}.numbered-code .mi,.numbered-code .mf{color:#a36322}.highlight-line{background:#fff0ca}.highlight-line .line-number{background:#fff0ca;color:#744b0c}
@media(max-width:760px){header{height:72px;padding:0 22px}nav{gap:18px;font-size:12px}.brand{font-size:18px}main{padding:0 22px}.hero{padding:48px 0}.hero h1{letter-spacing:-3px;font-size:66px}.dek{font-size:23px}.intro{font-size:16px}.hero-actions{gap:20px;flex-wrap:wrap}.section-heading{display:block}.section-heading .mono{display:block;margin-bottom:12px}.chart-grid{grid-template-columns:1fr;gap:14px}h2{font-size:25px}.leaderboard{min-width:620px}footer{padding:24px 22px;gap:20px}.page-title{font-size:34px;letter-spacing:-1px}.endcap h2{font-size:30px}.task-row{grid-template-columns:24px minmax(0,1fr) 20px;gap:12px;padding:20px 14px}.task-count{grid-column:1 / -1;gap:clamp(8px,3vw,20px);font-size:12px}.task-count span{gap:5px}.row-arrow{grid-column:3;grid-row:1}.row-arrow .external-icon{width:20px;height:20px}.task-row h3{font-size:18px}.tabs{gap:12px}.tabs button{font-size:13px}.trial-table{min-width:610px}.metric-grid{grid-template-columns:repeat(2,1fr)}.metric-grid dd{font-size:19px}.turn-heading{align-items:start;flex-direction:column;gap:4px}.trace-toolbar{flex-wrap:wrap}.trace-toolbar label{width:100%}.file-bar{flex-wrap:wrap}.blog-layout{grid-template-columns:1fr;gap:24px}.blog-toc{position:static;display:flex;flex-wrap:wrap;gap:14px}.blog-toc a{padding:0}.blog article p{font-size:16px}.page-title.small-title{font-size:29px}}
@media(max-width:760px){.difficulty-table{min-width:680px}}
.fail-label{color:#b42318}
.trial-summary{border-top:1px solid var(--line)}
.trial-summary-row{display:grid;grid-template-columns:180px minmax(0,1fr) 82px;align-items:center;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.trial-summary-row h3{font-size:17px;font-weight:500;line-height:1.4;margin:0}
.trial-outcomes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));align-items:center;gap:8px;min-width:0;padding:4px}
.trial-outcome{display:inline-flex;min-width:0;align-items:center;justify-content:center;gap:5px;padding:8px 8px;border:1px solid transparent;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px;font-weight:500;line-height:1.2;text-transform:uppercase;letter-spacing:.03em;text-decoration:none;white-space:nowrap;transition:background-color .15s,border-color .15s}
.trial-outcome .external-icon{width:13px;height:13px}
.outcome-pass{background:#e8f3ec;color:#176b3a}
.outcome-fail{background:#fcebea;color:#a4221a}
.outcome-pass:hover{background:#d4e9dc;border-color:#176b3a}
.outcome-fail:hover{background:#f6d8d5;border-color:#a4221a}
.trial-outcome:focus-visible{outline:2px solid currentColor;outline-offset:2px}
.trial-pass-count{color:var(--muted);text-align:right;font-variant-numeric:tabular-nums;font-size:15px}
.trial-click-hint{margin:0 0 18px}
.trajectory .turn{display:grid;grid-template-columns:112px minmax(0,1fr);gap:18px;padding:12px 0;scroll-margin-top:76px}
/* Folded empty-reasoning messages keep #turn-N anchors; take them out of the turn grid so they don't shift its columns. */
.trajectory .turn{position:relative}.turn-anchor{position:absolute;top:0;left:0;width:0;height:0;scroll-margin-top:76px}
.turn-gutter{display:flex;gap:12px;align-items:baseline;justify-content:flex-end;padding-top:2px;font:12px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);font-variant-numeric:tabular-nums}
.turn-gutter a{color:var(--ink)}
.turn-content{min-width:0}
.trace-role{font:12px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.model-role{margin-bottom:4px}
.trajectory .assistant-message{font-size:14px;line-height:1.5;margin:0 0 8px}
.trajectory .reasoning{background:none;padding:0;margin:4px 0 8px;border:0}
.trajectory .reasoning summary{font-size:13px;color:var(--muted)}
.trajectory .reasoning[open]>summary{margin-bottom:8px}
.trajectory .tool-block,.orphan-tools .tool-block{border:0;margin:4px 0}
.trajectory .tool-block details,.orphan-tools .tool-block details{padding:0;border:0}
.tool-output>summary{display:flex;align-items:center;gap:9px;min-width:0;padding:6px 8px;background:#f6f6f6;font-size:13px;font-weight:400;cursor:pointer;list-style:none}
.tool-output>summary::before{content:'›';font-size:17px;line-height:1;flex-shrink:0}
.tool-output[open]>summary::before{transform:rotate(90deg)}
.tool-output>summary:hover{background:#ededed}
.tool-output>summary b{font-weight:500;white-space:nowrap}
.command-preview{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:13px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace}
.tool-duration,.output-cue{font-size:12px;color:var(--muted);white-space:nowrap}
.tool-result{padding:10px 12px;border-left:1px solid var(--line);margin-left:8px}
.tool-output[open]>summary{margin-bottom:0}
.trajectory .tool-block .code{font-size:12px;line-height:1.5;margin:6px 0 10px;padding:10px;white-space:pre-wrap;overflow-wrap:anywhere}
.output-role{margin-top:12px}
@media(max-width:760px){.trajectory .turn{grid-template-columns:48px minmax(0,1fr);gap:10px;padding:10px 0}.turn-gutter{flex-direction:column;gap:2px;align-items:flex-end}.tool-output>summary{gap:6px}.tool-output>summary .trace-role,.tool-duration{display:none}.command-preview{font-size:12px}.tool-result{padding:8px;margin-left:0}}
@media(max-width:1000px){.trial-summary-row{grid-template-columns:minmax(0,1fr) 82px;gap:10px;padding:16px 0}.trial-outcomes{grid-column:1 / -1;grid-row:2}.trial-pass-count{grid-column:2;grid-row:1}}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-style:normal}.footer-contact strong{color:var(--ink)}footer{flex-wrap:wrap;gap:24px}

/* An unobtrusive reading rail, centered beside the article on wide screens. */
.article-blog{max-width:1344px}
.article-blog .blog-layout{display:grid;grid-template-columns:208px minmax(0,1fr);gap:64px;margin-top:48px}
.article-blog .blog-toc-rail{min-width:0}
.article-blog .blog-toc{position:sticky;top:calc(50vh - 130px);display:flex;flex-direction:column;gap:0;flex-wrap:nowrap;padding:0;margin:0;border:0;font-size:17px;line-height:1.45}
.article-blog .toc-heading{margin:0 0 20px;padding:0 0 15px;border-bottom:1px solid var(--line);font-size:11px;font-weight:400;letter-spacing:1.8px;text-transform:uppercase;color:var(--muted)}
.article-blog .blog-toc a{padding:8px 0;color:var(--muted);transition:color .18s ease;text-decoration:none}
.article-blog .blog-toc a:hover{color:var(--ink)}
.article-blog .blog-toc a[aria-current="location"]{font-weight:600;color:#151515}
.article-blog .blog-toc a:focus-visible{text-decoration:underline;text-underline-offset:5px}
.article-blog article{min-width:0}
.article-blog article h2{scroll-margin-top:32px}
.article-blog article h2:focus{outline:none}
header .external-icon,.text-link .external-icon{margin-left:5px}
@media(max-width:1000px){
  .article-blog .blog-layout{display:block;margin-top:34px}
  .article-blog .blog-toc{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;margin-bottom:40px;padding-bottom:20px;border-bottom:1px solid var(--line);font-size:16px}
  .article-blog .toc-heading{grid-column:1/-1;margin-bottom:10px}
}
@media(prefers-reduced-motion:reduce){
  .task-row,.article-blog .blog-toc a{transition:none}
}

@media(max-width:560px){
  .trial-outcomes{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* Compact the homepage so the complete dataset summary fits in the first view. */
thead{border-top:0}
.home .hero{padding:42px 0 34px}
.home .hero .eyebrow{margin-bottom:18px}
.home .hero h1{font-size:clamp(56px,7.2vw,96px);margin-bottom:18px}
.home .hero h1 span{margin-top:8px}
.home .hero .dek{margin-bottom:22px}
.home .section{padding:24px 0 36px}
.home .section-heading{margin-bottom:8px}
.home .section-heading h2{margin-bottom:0}
.home .section>.page-intro{font-size:16px;margin:0 0 10px}
.home th,.home td{padding-top:12px;padding-bottom:12px}
.home tbody tr:last-child>th,.home tbody tr:last-child>td{border-bottom:0}
@media(max-width:760px){
  .home .hero{padding:38px 0 30px}
}

.home .hero-highlight{display:inline-block;background:#e8e8e6;color:inherit;padding:0 .07em .04em;margin-left:-.07em;box-decoration-break:clone;-webkit-box-decoration-break:clone}

/* Blog layout measured against DeepSWE: 768px wrapper / 720px reading column.
   Keep this scoped so task, trace, and homepage layouts remain unchanged. */
.research-article{box-sizing:border-box;width:100%;max-width:768px;margin:0 auto;padding:64px 24px;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
.research-article .blog-layout{display:block;margin:0}
.research-article article{width:100%;max-width:none;min-width:0;margin:0}
.research-article .breadcrumb{margin:0 0 24px;font-size:13px}
.research-article .breadcrumb a{color:var(--muted);text-decoration:none}
.research-article .article-hero{padding:0;max-width:none}
.research-article .eyebrow{font-size:11px;letter-spacing:.1em;color:var(--muted);margin:0 0 16px}
.research-article .article-hero h1{font-size:44px;line-height:1.05;font-weight:500;letter-spacing:-.025em;margin:0 0 24px}
.research-article .title-line{display:block}
.research-article article p,.research-article article li{font-size:17px;line-height:1.65;color:var(--ink);margin:16px 0;max-width:none}
.research-article article .eyebrow{font-size:11px;color:var(--muted)}
.research-article .article-section{padding:0;margin:64px 0 0;border:0}
.research-article article h2{font-size:24px;line-height:30px;font-weight:600;letter-spacing:normal;margin:0 0 12px;padding:0}
.research-article article h3{font-size:18px;line-height:28px;font-weight:500;letter-spacing:normal;margin:32px 0 8px}
.research-article [id]{scroll-margin-top:96px}
.research-article [tabindex="-1"]:focus{outline:none}
.research-article .grading-families{margin:0}
.research-article .grading-families>div{display:block;padding:0;border:0}
.research-article .grading-families h3{margin:22px 0 4px;font-weight:400}
.research-article .grading-families>div+div h3{margin-top:24px}
.research-article .grading-families p{margin:8px 0;font-size:17px;line-height:1.5}
.research-article .grading-families .grading-weights{margin:0 0 10px;color:var(--muted);font-size:16px}
.research-article .grading-section .grading-privacy{margin-top:18px;line-height:1.5}
.research-article .grading-example{display:block;border:1px solid var(--line);margin:24px 0;background:#fafafa}
.research-article .grading-example-label{display:flex;flex-direction:column;gap:6px;padding:16px}
.research-article .grading-example-label span{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.research-article .grading-example-label strong{font-size:15px;font-weight:500}
.research-article .grading-example-label small{font-size:13px;color:var(--muted)}
.research-article .grading-example pre{margin:0;padding:16px;border:0;border-top:1px solid var(--line);background:#f6f6f6;color:var(--ink);font-size:13px;line-height:1.6;overflow:auto}
.research-article .observation-section{margin:0;padding:0;border:0}
.research-article .observation-section+.observation-section h3{margin-top:56px}
.research-article .article-figure{width:100%;max-width:100%;margin:24px 0;transform:none}
.research-article .article-figure>a{display:block;background:white;border:1px solid var(--line)}
.research-article .article-figure img{display:block;width:100%;height:auto}
.research-article .article-figure figcaption{font-size:13px;line-height:1.625;color:var(--muted);margin:8px 0 0}
.research-article article .pull-quote{font-size:17px;line-height:1.65;font-weight:500;border:0;padding:0;margin:24px 0 16px}
.research-article article .takeaway{font-size:17px;line-height:1.65;border:0;padding:0;margin:24px 0 0}
.research-article .takeaway span{font-weight:600;margin-right:6px}
.research-article .takeaway span:after{content:":"}
.research-article .explore-section .button{margin-top:8px;text-decoration:none}
.research-article .blog-toc{position:fixed;left:24px;top:170px;width:280px;margin:0;padding:0;border:0;display:block}
.research-article .blog-toc .toc-heading{font-size:9.6px;line-height:1.4;letter-spacing:.05em;text-transform:uppercase;font-weight:400;color:var(--muted);margin:0 0 12px;padding:0 0 8px;border-bottom:1px solid var(--line)}
.research-article .blog-toc a{display:block;font-size:13px;line-height:1.4;padding:5px 0;color:var(--muted);white-space:nowrap;text-decoration:none;transform:none}
.research-article .blog-toc a.toc-subsection{padding-left:12px;font-size:12px}
.research-article .blog-toc a:hover,.research-article .blog-toc a[aria-current=location]{color:var(--ink);transform:none}
.blog-preview{background:#0b0b0b;color:#fff;display:grid;grid-template-columns:1fr 1.4fr;gap:32px;padding:36px 32px;margin:40px 0 0;align-items:center}
.blog-preview h2{font-size:clamp(26px,2.8vw,34px);line-height:1.15;letter-spacing:-1px;margin:0 0 22px}
.blog-preview-open{display:inline-flex;gap:12px;align-items:center;background:#fff;color:#111;padding:10px 16px;font-size:15px}
.blog-preview .external-icon{width:16px;height:16px}
.blog-preview-links .external-icon{color:#999}
.blog-preview-links{list-style:none;margin:0;padding:0}
.blog-preview-links li{border-top:1px solid #353535}
.blog-preview-links li:last-child{border-bottom:1px solid #353535}
.blog-preview-links a{display:grid;grid-template-columns:24px 1fr 16px;gap:12px;align-items:center;padding:18px 6px;font-size:16px;line-height:1.4}
.blog-preview-links a:hover{background:#181818;text-decoration:none}
.blog-preview-number{color:#999;font-size:13px;font-family:monospace}
.blog-preview a:focus-visible{outline-color:#fff}
#path-towards-rsi{scroll-margin-top:32px}
.research-article .experiment-log{margin:16px 0 20px;padding:16px 18px;background:#f6f6f5;border:1px solid #e7e7e5;border-radius:4px;font-size:14px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}
.research-article .experiment-log code{font:inherit;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;background:none;padding:0}
.research-article .experiment-quote{margin:16px 0 20px;padding:0 0 0 18px;border-left:2px solid #d8d8d6;font-size:18px;line-height:1.65;color:var(--ink);font-style:normal}
@media(max-width:700px){.blog-preview{grid-template-columns:1fr;padding:24px 20px;gap:24px}.blog-preview-links a{font-size:15px;gap:10px}.blog-preview h2{letter-spacing:-.8px}}
@media(max-width:1399px){.research-article .blog-toc-rail{display:none}}
@media(max-width:639px){
.research-article{padding:40px 16px}
.research-article .article-hero h1{font-size:32px}
.research-article .title-line{white-space:normal}
.research-article .experiment-log{font-size:12px;padding:14px 12px}
}

.full-user-prompt{border-top:1px solid var(--line);padding:14px 0}.full-user-prompt h2{font-size:14px;line-height:1.5;font-weight:700;margin:0 0 16px}
.task-facts{display:grid;grid-template-columns:1fr 1fr;gap:28px;max-width:1000px;margin:26px 0 8px}.task-facts dt{font-size:13px;font-weight:600;margin-bottom:6px}.task-facts dd{margin:0;font-size:15px;line-height:1.6;color:#3c3c3c}.task-facts .pass-mark{display:block;margin-top:10px;font-weight:600;color:var(--ink)}.qc-notes{max-width:1000px;margin-top:18px}.qc-notes p{font-size:14px;line-height:1.6;color:#3c3c3c;margin:0 0 10px;max-width:900px}@media(max-width:760px){.task-facts{grid-template-columns:1fr;gap:18px}}

.task-download-link{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}.task-download-link:hover{text-decoration-thickness:2px}

/* Versioned candidates retain a separate, explicit evidence boundary. */
.version-notice{margin:20px 0;padding:18px 20px;border-left:3px solid #cb6b26;background:#fff7ec;color:#2b261f}
.version-notice label{display:block;font-weight:650;margin-bottom:8px}
.version-notice select{max-width:100%;padding:9px;font:inherit;border:1px solid #b8aa99;background:white;border-radius:4px}
.version-notice p{margin:10px 0 0;line-height:1.5}