:root{color-scheme:light;--ink:#202b36;--muted:#697682;--line:#dce2e7;--accent:#226858;--surface:#fff;--soft:#f4f6f8;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:14px;line-height:1.55;color:var(--ink);background:#f8f9fa}
*{box-sizing:border-box}body{max-width:1240px;margin:0 auto;padding:36px 32px 20px}[hidden]{display:none!important}h1,h2,h3{line-height:1.25;font-weight:600;letter-spacing:-.025em}h1{font-size:23px;margin:0}h2{font-size:18px;margin:0 0 18px}h3{font-size:14px;margin:24px 0 12px}p{margin:12px 0}small{font-size:12px;color:var(--muted)}a{color:var(--accent);text-underline-offset:3px}button,input,select,textarea{font:inherit}button{border:1px solid #cbd4db;background:var(--surface);color:var(--ink);border-radius:6px;padding:8px 14px;cursor:pointer;font-weight:500;transition:background .12s,border-color .12s}button:hover:not(:disabled){background:#edf2f0;border-color:#9baea6}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}input:not([type=checkbox]):not([type=range]),select{border:1px solid #cbd4db;border-radius:5px;background:#fff;color:var(--ink);padding:8px 10px;min-width:0;width:100%}input[type=checkbox],input[type=range],progress{accent-color:var(--accent)}label{font-size:12px;font-weight:500;color:#53616e}label>input:not([type=checkbox]),label>select{display:block;margin-top:6px}pre,code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px}pre{overflow:auto;background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:16px}code{overflow-wrap:anywhere}.page-header,.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.page-header{margin-bottom:28px}#connection{font-size:12px;color:var(--muted)}#connection.ready{color:var(--accent)}nav{display:flex;gap:22px;border-bottom:1px solid var(--line);margin-bottom:28px;overflow-x:auto}nav button{white-space:nowrap;border:0;border-bottom:2px solid transparent;border-radius:0;padding:10px 0 13px;background:transparent;color:var(--muted);font-size:13px}nav button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--accent)}nav button:hover:not(:disabled){background:transparent;color:var(--ink)}.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px}.submission-pane,.results-pane{min-width:0}.results-pane{border-left:1px solid var(--line);padding-left:26px}.submission-heading{display:flex;align-items:end;gap:16px;margin-bottom:22px}.submission-heading label{flex:1}.submission-heading button{flex-shrink:0}.editor-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#edf1f4;border:1px solid var(--line);border-bottom:0;border-radius:7px 7px 0 0;padding:10px 14px;font-size:12px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.editor-heading small{margin-left:10px}.editor{display:flex;height:440px;background:#fff;border:1px solid var(--line);border-radius:0 0 7px 7px;overflow:hidden}.editor pre,.editor textarea{font:13px/22px ui-monospace,SFMono-Regular,Consolas,monospace;tab-size:4;white-space:pre;border-radius:0}#gutter{margin:0;padding:14px 10px;min-width:44px;overflow:hidden;text-align:right;color:#98a2ac;background:#fafbfc;border:0;border-right:1px solid #edf0f2;user-select:none}.codearea{position:relative;flex:1;min-width:0}.codearea pre,.codearea textarea{position:absolute;inset:0;width:100%;height:100%;margin:0;padding:14px 12px;border:0;overflow:auto}.codearea pre{pointer-events:none;background:transparent;scrollbar-width:none}.codearea pre::-webkit-scrollbar{display:none}.codearea textarea{resize:none;background:transparent;color:transparent;caret-color:var(--ink);-webkit-text-fill-color:transparent;outline-offset:-2px}.codearea textarea::selection{background:#b6d8eb70}.kw{color:#7948a1}.str{color:#287147}.comment{color:#89939d}.num{color:#2767a2}.test-controls{display:grid;grid-template-columns:minmax(0,1fr) minmax(120px,.6fr);gap:16px;margin-top:20px}.run-actions{display:flex;gap:8px;margin-top:18px}#submit{background:var(--accent);border-color:var(--accent);color:white;min-width:96px}#submit:hover:not(:disabled){background:#195142}#test{min-width:80px}.section-heading h2{margin:0}.section-heading{margin-bottom:18px}#run-status,.pill{font-size:11px;border:1px solid var(--line);border-radius:4px;padding:3px 7px;color:var(--muted);background:#fff}#run-title{font-weight:500;overflow-wrap:anywhere}#run-detail,#progress-caption,#live-tick{font-size:12px;color:var(--muted)}progress{width:100%;height:6px;display:block;margin:20px 0 10px;border:0;border-radius:4px;overflow:hidden}progress::-webkit-progress-bar{background:#e8edf0}progress::-webkit-progress-value{background:var(--accent)}.task{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px;padding:7px 0;border-bottom:1px solid #e9edf0;overflow-wrap:anywhere}.ok{color:#287047}.bad,#error-box{color:#ae3838}.running{color:#906116}#notice{padding:12px 16px;border:1px solid #d9bda2;background:#fffaf3;border-radius:6px;margin-bottom:20px}#error-box{white-space:pre-wrap;font-size:11px}.leaderboards{border-top:1px solid var(--line);margin-top:32px;padding-top:26px}.toggle{display:flex;align-items:center;gap:7px;color:var(--ink)}table{width:100%;border-collapse:collapse;font-size:13px;background:#fff}th{text-align:left;font-weight:500;color:var(--muted);background:#f1f4f6}th,td{padding:11px 14px;border-bottom:1px solid var(--line)}.numeric{text-align:right;font-variant-numeric:tabular-nums}.rank{width:50px;color:var(--muted)}.score{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.table-wrap{overflow-x:auto}.empty{padding:22px 0;color:var(--muted);font-size:13px}.empty strong{display:block;font-weight:500;color:#4d5b67;margin-bottom:4px}.history-item{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}.history-item h3{margin:0 0 8px}.history-item p{margin:0;font-size:12px;color:var(--muted)}.history-actions{display:flex;gap:8px}.tab-panel>h2{margin-top:8px}#statement{max-width:900px}#statement h3{font-size:17px;margin-top:30px}#statement p,#statement li{line-height:1.75}#statement .callout{padding:16px;border-left:3px solid var(--accent);background:#edf3f0}#statement table{display:block;overflow-x:auto}#generator-source{max-height:650px}canvas{display:block;max-width:100%;height:auto;border:1px solid var(--line);border-radius:7px;background:white;margin:20px auto}#seek{width:100%}#car-detail{padding:12px;background:#edf1f4;border-radius:5px;font-size:13px}footer{border-top:1px solid var(--line);padding-top:18px;margin-top:40px}#history-list .pill{margin-left:6px}@media(max-width:900px){.workspace-grid{grid-template-columns:1fr}.results-pane{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.editor{height:400px}}@media(max-width:560px){body{padding:22px 16px}.page-header{gap:8px}h1{font-size:21px}nav{gap:18px}.submission-heading{flex-wrap:wrap}.submission-heading label{min-width:180px}.test-controls{grid-template-columns:1fr}.history-item{align-items:start;flex-direction:column}.editor-heading{font-size:11px}.editor-heading small{font-size:10px}.section-heading{gap:8px}}

button.danger{color:#a43434}button.danger:hover:not(:disabled){background:#fff1f1;border-color:#d9aaaa}

.chart-heading{margin:26px 0 0}.chart-heading h3{margin:0}#rmse-chart-value{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}#rmse-chart{width:100%;margin:12px 0;cursor:crosshair}#rmse-chart-help{margin-top:0}