/* A compact reading workspace. No external fonts or layout dependencies. */
:root{--bg:#fff;--paper:#fff;--ink:#242b33;--muted:#6b7280;--line:#e5e7eb;--green:#187653;--mint:#eef7f2;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 var(--sans)}[hidden]{display:none!important}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}a,button,input,select,summary{outline-offset:3px}button,input,select{border:1px solid #d8dde3;border-radius:4px;background:#fff;color:var(--ink)}button,select{padding:5px 9px}button:hover{background:#f6f8fa}input{min-width:0}summary{cursor:pointer}h1,h2,h3,p{margin:0}h1{font-size:18px;font-weight:600;line-height:1.4}h2{font-size:15px;font-weight:600}h3{font-size:14px}p{font-size:13px;color:var(--muted)}pre{font:12px/1.7 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere}table{border-collapse:collapse;width:100%;font-size:12px;white-space:nowrap}th{text-align:left;background:#f7f8fa;font-size:11px;font-weight:500;color:var(--muted)}th,td{padding:10px 12px;border-bottom:1px solid var(--line)}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:#fafbfc}
.app-header{display:flex;align-items:center;gap:28px;min-height:58px;padding:0 24px;border-bottom:1px solid var(--line);flex-wrap:wrap}.brand{font-size:18px;font-weight:600;color:var(--ink);white-space:nowrap}.brand:hover{text-decoration:none}nav{display:flex;align-self:stretch;gap:20px}nav a{display:flex;align-items:center;min-height:52px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent}nav a.active{color:var(--green);border-bottom-color:var(--green)}nav a:hover{text-decoration:none;color:var(--ink)}.header-links{margin-left:auto;display:flex;gap:16px;font-size:12px}.header-links a{color:var(--muted)}main{max-width:1800px;margin:auto;padding:0 24px 20px}.snapshot-line{display:flex;justify-content:space-between;gap:12px;padding:10px 0;color:#8a919b;font-size:11px}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:16px 0}.button,.add-column{display:inline-block;padding:5px 9px;border:1px solid #d8dde3;border-radius:4px;background:#fff;color:#4b5563;font-size:12px;white-space:nowrap}.button:hover,.add-column:hover{background:#f6f8fa;text-decoration:none}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:14px;margin:14px 0}.section-heading p{font-size:12px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:4px}.footnote{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted);margin:10px 0}footer{font-size:11px;color:#9aa1aa;padding:20px 0 0}.notice{font-size:11px;padding:7px 10px;background:#f8f9fa;color:#747b85;border:1px solid var(--line);border-radius:4px;margin:8px 0}.notice a{margin-left:8px}.download-progress{font-size:11px;color:var(--muted);margin:4px 0 8px}.download-heading{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.download-heading strong{font-weight:500;color:#53665b}.download-heading .button{font-size:11px;padding:2px 7px}.download-speed{color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:4px;margin:14px 0 18px}.stat{padding:12px 16px;border-right:1px solid var(--line)}.stat:last-child{border-right:0}.stat small{display:block;font-size:11px;color:var(--muted)}.stat strong{display:block;font-size:23px;font-weight:500;line-height:1.7;font-variant-numeric:tabular-nums}.stat>span{font-size:11px;color:#9299a2}.rank,.number,.download-status{font-size:12px;font-variant-numeric:tabular-nums}.rank{color:#9aa1aa}.model-name{font-weight:500}.agent{display:block;font-size:11px;color:var(--muted)}.pill{display:inline-block;font-size:11px;color:var(--muted)}.rate{font-variant-numeric:tabular-nums}.rate-track{display:none}.compare-link{font-size:16px;color:var(--green)}
.compare-shell{display:grid;grid-template-columns:205px minmax(0,1fr);gap:18px}.task-panel{border:1px solid var(--line);border-radius:4px;align-self:start;overflow:hidden}.task-panel-head{display:flex;justify-content:space-between;padding:10px 12px;font-size:12px}.task-panel-head span{color:var(--muted)}.search{display:flex;align-items:center;gap:5px;border:1px solid #d8dde3;border-radius:4px;padding:5px 8px;background:#fff;min-width:0}.search>span{color:#9aa1aa}.search input{border:0;border-radius:0;padding:0;width:100%;background:transparent;font-size:12px;outline:none}.task-panel .search{margin:0 8px 8px}select{max-width:100%;font-size:12px}#task-sort{margin:0 8px 8px;width:calc(100% - 16px)}#task-list{overflow:auto;max-height:calc(100vh - 250px);min-height:250px;border-top:1px solid var(--line)}.task-item{display:block;width:100%;text-align:left;background:#fff;border:0;border-bottom:1px solid #f0f1f3;border-radius:0;padding:9px 11px}.task-item b{display:block;font-size:11px;overflow-wrap:anywhere;font-weight:400}.task-item span{font-size:10px;color:#9aa1aa}.task-item.active{background:#eef7f2;box-shadow:inset 2px 0 var(--green);color:var(--green)}.task-item:hover{background:#f6f8fa}.compare-main{min-width:0}.task-title{padding:0 0 10px;border-bottom:1px solid var(--line)}.task-title h2{font:500 16px/1.5 var(--mono);overflow-wrap:anywhere}#task-description{font-size:11px;color:var(--muted);margin-top:2px}.task-prompt{margin-top:8px}.task-prompt summary{font-size:12px;color:var(--green)}.model-picker{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:12px 0}.picker-slot{display:flex;gap:3px;align-items:center}.picker-slot select{max-width:285px}.remove-column{border:0;padding:1px 4px;background:none;color:#9aa1aa;font-size:17px}.reading-toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin:10px 0}.reading-toolbar>div{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.reading-toolbar label{display:flex;gap:5px;align-items:center;white-space:nowrap}.reading-toolbar select{font-size:11px;padding:3px 5px}.reading-toolbar .search{width:180px}.reading-toolbar input[type=checkbox]{accent-color:var(--green);margin:0}.compare-columns{display:flex;gap:12px;overflow-x:auto;padding-bottom:6px}.trajectory-column{flex:1 0 330px;min-width:300px;border:1px solid var(--line);border-radius:4px;background:#fff;overflow:hidden}.column-head{padding:12px;border-bottom:1px solid var(--line);background:#fafbfc}.column-head h3{font-size:14px}.column-head .config{font-size:11px;color:#8a919b;margin-top:2px}.column-head select{width:100%;margin:8px 0;font-size:11px}.run-metrics{display:flex;gap:14px;flex-wrap:wrap;font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}.pass{color:var(--green)}.fail{color:#916b49}.column-links{display:flex;gap:14px;font-size:11px;color:var(--muted);margin-top:8px}.column-body{height:calc(100vh - 400px);min-height:420px;overflow:auto;padding:0 14px 16px;scrollbar-width:thin;scrollbar-color:#d5d9df transparent}.step{padding:13px 0;border-bottom:1px solid #eceef1}.step-title{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:#9aa1aa;margin-bottom:8px}.step-title strong{font-weight:500;color:#6b7280}.step pre{margin:0;font:12px/1.8 var(--mono)}.step details{border:1px solid var(--line);border-radius:4px;margin:8px 0 0;overflow:hidden}.step summary{font:11px/1.6 var(--mono);color:#6b7280;padding:6px 8px;background:#fafbfc;overflow-wrap:anywhere}.step details pre{padding:10px;max-height:400px;overflow:auto}.step details img{display:block;max-width:100%;height:auto;margin:10px auto}.empty{padding:35px 20px;text-align:center;color:#8a919b;font-size:12px;white-space:pre-wrap}.empty b{display:block;font-weight:500;margin-bottom:8px;color:#6b7280}.projection-note{padding:8px;border:1px solid #e7dfce;background:#fdfbf6;color:#8a795c;font-size:11px}.loading-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#7da38c}
.panel{border:1px solid var(--line);border-radius:4px;padding:16px;min-width:0}.panel p{margin:8px 0;font-size:12px}.panel select{width:100%;margin:4px 0}.subtle{font-size:11px;color:#8a919b}.analysis-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:16px;margin-top:12px}.analysis-extra{margin:18px 0}.analysis-extra>summary{font-size:13px;color:var(--muted)}#cost-chart svg{width:100%;max-height:300px}#pair-picker{margin:12px 0}.pair-stats{display:grid;grid-template-columns:repeat(3,1fr);margin:16px 0}.pair-stats>div{text-align:center}.pair-stats strong{display:block;font-size:24px;font-weight:500}.pair-stats span{font-size:11px;color:var(--muted)}.legend{display:flex;gap:14px;font-size:10px;color:var(--muted);margin:12px 0}.legend span{display:flex;gap:5px;align-items:center}.legend i{display:block;width:10px;height:10px;border:1px solid #d8dde3;border-radius:2px}.matrix{max-height:70vh}.matrix thead{position:sticky;top:0;z-index:3}.matrix th{max-width:90px;white-space:normal;vertical-align:bottom;font-size:10px;padding:10px 6px;text-align:center}.matrix th:first-child{min-width:220px;text-align:left;position:sticky;left:0;z-index:4}.matrix td{padding:4px;text-align:center}.matrix td:first-child{position:sticky;left:0;background:#fff;text-align:left;font-size:11px;padding:8px 10px;z-index:2}.matrix button{width:46px;min-height:27px;border:1px solid transparent;font-size:10px;padding:3px}.matrix button:hover{border-color:var(--green)}.matrix td:first-child button{background:none;width:auto;text-align:left;color:#4b5563}.about-grid{max-width:950px;display:grid;gap:12px}.about-grid>.panel{padding:12px 16px}.about-grid summary{font-size:13px;font-weight:500}.about-grid pre{background:#f7f8fa;padding:12px;border-radius:4px;font-size:11px}.about-grid a{font-size:12px}
@media(min-width:1700px){.column-body{height:calc(100vh - 370px)}}
@media(max-width:1000px){.app-header{gap:18px;padding:10px 18px;min-height:unset}.brand{font-size:17px}nav{gap:16px}nav a{min-height:34px}.header-links{font-size:11px;gap:10px}main{padding:0 16px 18px}.compare-shell{grid-template-columns:180px minmax(0,1fr);gap:12px}.trajectory-column{flex-basis:310px}.analysis-grid{grid-template-columns:1fr}.reading-toolbar>div{gap:8px}.reading-toolbar .search{width:100%}}
@media(max-width:700px){.app-header{gap:5px 16px}.brand{font-size:17px}nav{order:2;width:100%;gap:22px}.header-links{margin-left:auto;font-size:10px;gap:10px}.header-links a:last-child{display:none}nav a{min-height:36px}.snapshot-line{font-size:10px}.page-heading{margin:12px 0}h1{font-size:17px}.compare-shell{display:block}.task-panel{margin-bottom:14px}.task-panel-head{padding:8px 10px}.task-panel .search{display:inline-flex;width:calc(60% - 12px)}#task-sort{display:inline-block;vertical-align:top;width:calc(40% - 16px);margin:0 8px 8px 0}#task-list{min-height:0;max-height:130px;display:grid;grid-template-columns:1fr 1fr}.task-item{padding:7px 10px}.task-item b{font-size:10px}.task-item span{font-size:9px}.trajectory-column{flex:1 0 86vw;min-width:0}.column-body{height:65vh;min-height:350px}.task-title h2{font-size:15px}.picker-slot select{max-width:calc(100vw - 90px)}.stats{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.stat strong{font-size:21px}.stat{padding:10px 12px}.footnote{display:block}.legend{gap:10px;flex-wrap:wrap}.matrix th:first-child{min-width:170px}.section-heading{align-items:flex-start}.section-heading .search{width:150px;flex-shrink:0}.download-heading{gap:8px}.notice{font-size:10px}}

/* Markdown, code and mathematics. */
.markdown-body{font:13px/1.85 var(--sans);color:#344d42;overflow-wrap:anywhere;min-width:0}.markdown-body p{font:inherit;color:inherit;margin:.65em 0}.markdown-body>:first-child{margin-top:0}.markdown-body>:last-child{margin-bottom:0}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{font-family:var(--sans);line-height:1.4;letter-spacing:0;margin:1.2em 0 .5em;color:#1d4939}.markdown-body h1{font-size:1.55em}.markdown-body h2{font-size:1.35em}.markdown-body h3{font-size:1.15em}.markdown-body h4{font-size:1em}.markdown-body ul,.markdown-body ol{padding-left:1.6em;margin:.65em 0}.markdown-body li{padding-left:.2em;margin:.25em 0}.markdown-body li>p{margin:.25em 0}.markdown-body blockquote{margin:1em 0;border-left:3px solid #a9cbb8;padding:.2em 1em;background:#f5f8f4;color:#637b6d}.markdown-body hr{border:0;border-top:1px solid var(--line);margin:1.5em 0}.markdown-body a{color:#166b94;text-decoration:underline;text-underline-offset:3px}.markdown-body code:not(.hljs){font:11.5px/1.7 var(--mono);padding:.15em .35em;background:#eff3ef;border-radius:3px;color:#465a50}.markdown-body .source-file{font-family:var(--mono);font-size:.9em;color:#53695e}.markdown-body table{display:block;max-width:100%;width:max-content;overflow-x:auto;white-space:normal;font-size:12px;margin:1em 0}.markdown-body th,.markdown-body td{border:1px solid #dce5df;padding:8px 11px;white-space:normal;min-width:90px;vertical-align:top;line-height:1.65}.markdown-body th{font:600 11px var(--sans);letter-spacing:0;background:#f0f5f1;color:#456451}.markdown-body tr:nth-child(2n){background:#f8faf7}.markdown-body .katex{font-size:1.06em;line-height:1.25}.markdown-body .katex-display{display:block;overflow-x:auto;overflow-y:hidden;padding:10px 2px;margin:0;text-align:center}.markdown-body .katex-display>.katex{white-space:nowrap}.markdown-body .math-block{position:relative;margin:1em 0;background:#fafcf9;border:1px solid #e8ede6;border-radius:4px;padding:10px 8px 24px;max-width:100%;overflow:hidden}.markdown-body eq{display:inline}.markdown-body eqn,.markdown-body equation{display:block;max-width:100%}.math-copy{position:absolute;bottom:4px;right:7px;padding:2px 5px;border:0;background:transparent;font-size:9px;color:#789381}.math-copy:hover{color:#187653}.katex-error{white-space:pre-wrap!important;overflow-wrap:anywhere}.code-frame{border:1px solid #dfe7e0;border-radius:5px;margin:.8em 0;overflow:hidden;background:#f7f9f6}.code-toolbar{display:flex;align-items:center;justify-content:space-between;padding:5px 10px;background:#edf2ed;border-bottom:1px solid #dfe7e0;font:9px var(--mono);color:#708575}.code-copy{font:10px var(--sans);padding:1px 5px;background:transparent;border:0;color:#62816c}.code-copy:hover{color:#187653}.step .markdown-body .code-frame pre,.step details .code-frame pre,.task-prompt .code-frame pre{margin:0;padding:12px!important;border:0;max-height:460px;overflow:auto;font:11.5px/1.75 var(--mono);white-space:pre!important;overflow-wrap:normal!important;background:#fafcf9;color:#35483d}.code-frame code.hljs{padding:0;background:transparent;font:inherit;color:inherit}.step .markdown-body .code-frame pre:not(.code){font-family:var(--mono);font-size:11.5px}.step pre.message-source{font:11.5px/1.8 var(--mono);padding:10px;background:#f7f9f6;border:1px solid #e4ebe4;border-radius:4px}.step details>.markdown-body{padding:12px}.task-prompt>.markdown-body{margin:12px 0;max-height:420px;overflow:auto;padding:8px 12px;font-size:12px}.image-reference{font-size:11px;color:#7c8f83}

/* Tool calls and their matching responses are open in the reading flow. */
.tool-block{margin:10px 0;border-left:2px solid #d7dfe7;padding:0 0 0 10px;min-width:0}.tool-call{border-left-color:#a3bdb0}.tool-heading{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;font:11px/1.7 var(--mono);color:#6b7280;overflow-wrap:anywhere}.tool-heading strong{font:500 10px var(--sans);color:#627769}.tool-response .tool-heading strong{color:#6b7280}.tool-parameter{display:flex;gap:10px;margin:5px 0;font:11px/1.6 var(--mono);overflow-wrap:anywhere}.tool-parameter>span{color:#8a919b;flex-shrink:0}.tool-parameter code{white-space:pre-wrap;min-width:0}.tool-block .code-frame{margin:6px 0 10px}.step .tool-block .code-frame pre{margin:0;padding:10px 12px;max-height:none;overflow-x:auto;font:11.5px/1.75 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal;tab-size:4;background:#fafbfc;color:#35483d}.tool-block .code-toolbar{font-size:10px;background:#f3f5f6;border-color:#e2e6e9}.tool-block .code-frame{border-color:#e2e6e9;background:#fafbfc}.tool-block img{display:block;max-width:100%;height:auto;margin:10px auto}
.tool-metadata{display:flex;flex-wrap:wrap;gap:2px 12px;margin:5px 0;font:10px/1.6 var(--mono);color:#8a919b;overflow-wrap:anywhere}.tool-metadata span{min-width:0}