:root{--bg:#f4f6fa;--surface:#fff;--surface2:#f8fafd;--ink:#192a43;--secondary:#485a73;--muted:#6a7890;--line:#dce3ed;--accent:#245dc4;--accent-bg:#eaf1ff;--navy:#13243c;--mr:#7051b1;--mr-bg:#f3effb;--e:#087a78;--e-bg:#e9f6f4;--good:#177249;--good-bg:#eaf6ef;--bad:#ad4545;--bad-bg:#fceeee;--warn:#97620c;--warn-bg:#fff5df;--radius:12px;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
:root[data-theme=dark]{--bg:#101823;--surface:#182334;--surface2:#1b293c;--ink:#e5edf8;--secondary:#bbc9db;--muted:#95a6bd;--line:#304055;--accent:#91b7ff;--accent-bg:#223655;--mr:#c3a8f6;--mr-bg:#302943;--e:#77d6cd;--e-bg:#183a3d;--good:#84d5a6;--good-bg:#203b30;--bad:#f1a1a1;--bad-bg:#412b30;--warn:#e6c07c;--warn-bg:#3b3325;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:var(--accent)}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}button,a,summary{touch-action:manipulation}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:absolute;top:-60px;left:20px;z-index:100;background:var(--surface);padding:12px}.skip:focus{top:10px}
.topbar{min-height:82px;background:var(--navy);color:#f1f5ff;display:flex;align-items:center;gap:25px;padding:16px 30px;border-bottom:1px solid #324258}.brand{display:flex;align-items:center;gap:12px;min-width:238px}.brand-icon{height:39px;width:39px;display:grid;place-items:center;background:#233c59;color:#a3e4e5;border-radius:10px;font-size:35px;line-height:1;transform:rotate(-8deg)}.brand strong{display:block;font-size:19px;letter-spacing:.055em;line-height:1.25}.brand strong span{color:#86a0bf;font-weight:400;margin:0 4px}.brand-label{display:block;font-size:10px;letter-spacing:.19em;color:#9eafc6;margin-top:4px}.run-tag{font-size:14px;font-family:ui-monospace,SFMono-Regular,monospace;border-left:1px solid #3a4a60;padding-left:25px;color:#bac9df;white-space:nowrap}.run-tag b{color:#fff}.run-tag span{color:#8398b4}.top-actions{margin-left:auto;display:flex;align-items:center;gap:9px}.button{padding:7px 12px;border-radius:7px;border:1px solid var(--line);background:var(--surface);color:var(--secondary);font-size:14px;font-weight:550;line-height:1.5}.button:hover{border-color:var(--accent);color:var(--accent)}.topbar .button{background:#203650;border-color:#3b526e;color:#e2ebf7}.topbar .button:hover{background:#2c496b}.icon-button{font-size:20px;line-height:1;padding:10px 12px}.source-link{color:#cad9ee;font-size:14px;text-decoration:none;margin-left:12px}.source-link:hover{color:white;text-decoration:underline}
.shell{display:grid;grid-template-columns:294px minmax(0,1fr);min-height:calc(100vh - 82px)}.sidebar{position:sticky;top:0;max-height:100vh;display:flex;flex-direction:column;border-right:1px solid var(--line);background:var(--surface);align-self:start}.sidebar-intro{padding:26px 23px 17px}.eyebrow{font-size:12px;letter-spacing:.12em;font-weight:650;color:var(--muted)}.sidebar h1{font-size:29px;letter-spacing:-.05em;margin:3px 0 0}.sidebar-intro p{margin:0;color:var(--muted);font-size:14px}.collection-stats{display:flex;gap:20px;margin-top:19px}.collection-stats b{font-size:21px;font-weight:650;display:block;line-height:1.4;color:var(--ink);font-variant-numeric:tabular-nums}.collection-stats span{color:var(--muted);font-size:12px}.filters{padding:0 18px 18px;display:grid;gap:9px}.search-wrap{display:flex;align-items:center;background:var(--surface2);border:1px solid var(--line);border-radius:7px;padding-left:12px;color:var(--muted)}.search-wrap>span{font-size:24px;line-height:1}.search-wrap input{width:100%;min-width:0;background:none;color:var(--ink);border:0;padding:10px;font-size:14px;outline-offset:-2px}.filters select{width:100%;border:1px solid var(--line);border-radius:7px;padding:9px 10px;color:var(--secondary);background:var(--surface);font-size:14px}.list-heading{display:flex;justify-content:space-between;padding:13px 22px;border-block:1px solid var(--line);font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:600}.rollout-list{flex:1;overflow-y:auto;padding:9px;min-height:140px;scrollbar-width:thin}.rollout-choice{border:1px solid transparent;border-radius:8px;padding:12px 11px;text-align:left;display:grid;grid-template-columns:1fr auto;width:100%;color:var(--ink);background:transparent;margin-bottom:3px;gap:3px 8px}.rollout-choice:hover{background:var(--surface2)}.rollout-choice[aria-current=true]{background:var(--accent-bg);border-color:var(--accent);box-shadow:inset 3px 0 0 var(--accent)}.choice-name{font-size:14px;font-weight:600;display:flex;gap:9px;align-items:baseline}.choice-number{font-size:12px;color:var(--muted);font-family:ui-monospace,monospace}.choice-preview{grid-column:1/-1;color:var(--muted);font-size:12px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;line-height:1.5}.choice-meta{font-size:12px;color:var(--muted);margin-top:4px}.choice-score{font-size:14px;font-weight:650;font-variant-numeric:tabular-nums;align-self:start}.score-high{color:var(--good)}.score-zero{color:var(--bad)}.score-mid{color:var(--warn)}.sidebar-footer{padding:14px 22px 18px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.sidebar-footer p{font-size:12px;line-height:1.6;margin:10px 0 0}.score-scale{display:grid;grid-template-columns:1fr 1fr;margin-top:6px;max-width:145px;font-size:11px}.score-scale i{grid-column:1/-1;height:4px;background:linear-gradient(90deg,#bf6969,#d3aa62,#49896b);border-radius:4px;margin-bottom:3px}.score-scale span:last-child{text-align:right}
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span{color:var(--muted);font-weight:400}.badges{display:flex;gap:7px;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;font-size:12px;line-height:1.4;border-radius:5px;padding:4px 8px;background:var(--surface2);border:1px solid var(--line);color:var(--secondary);font-weight:550}.badge.good{color:var(--good);background:var(--good-bg);border-color:transparent}.badge.warn{color:var(--warn);background:var(--warn-bg);border-color:transparent}.stats-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:22px}.stat{padding:16px 20px;border-right:1px solid var(--line)}.stat:last-child{border-right:0}.stat-label{font-size:12px;letter-spacing:.02em;color:var(--muted)}.stat-value{font-size:25px;font-variant-numeric:tabular-nums;font-weight:620;line-height:1.45;margin-top:2px}.stat-note{font-size:12px;color:var(--muted);line-height:1.5}.stat-value small{font-size:15px;font-weight:400;color:var(--muted)}.problem-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:23px;padding:21px 24px}.section-label{display:flex;align-items:center;gap:10px;margin:0 0 12px;font-size:14px;font-weight:650;color:var(--ink)}.section-label .eyebrow{margin-left:auto;font-size:12px;font-weight:400;letter-spacing:0}.problem-body{max-height:340px;overflow:auto;padding-right:9px;scrollbar-width:thin}.prose{font-size:16px;line-height:1.8;overflow-wrap:anywhere;color:var(--ink);min-width:0}.prose p{margin:0 0 1em}.prose p:last-child{margin-bottom:0}.prose h1,.prose h2,.prose h3,.prose h4{font-size:1.08em;line-height:1.5;letter-spacing:0;margin:1.3em 0 .6em;font-weight:650}.prose h1:first-child,.prose h2:first-child,.prose h3:first-child{margin-top:0}.prose ul,.prose ol{padding-left:1.6em;margin:.7em 0}.prose li{margin:.3em 0}.prose blockquote{border-left:3px solid var(--line);margin:1em 0;padding-left:1em;color:var(--secondary)}.prose hr{border:0;border-top:1px solid var(--line);margin:1.4em 0}.prose pre,.raw-text{white-space:pre-wrap;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;line-height:1.8;margin:0;color:var(--secondary)}.prose pre{padding:15px;background:var(--surface2);border-radius:6px;margin:1em 0}.prose code{font-size:.9em;background:var(--surface2);padding:.12em .25em;border-radius:3px}.prose table{border-collapse:collapse;display:block;overflow-x:auto;font-size:14px;margin:1em 0}.prose td,.prose th{border:1px solid var(--line);padding:8px 12px}.prose img{max-width:100%}.katex-display{overflow:auto hidden;max-width:100%;padding:5px 0;margin:.8em 0!important}.katex{font-size:1.08em}.math-display{display:block}.math-inline{max-width:100%}.katex-error{white-space:pre-wrap!important}.tabs{display:flex;gap:25px;border-bottom:1px solid var(--line);margin-bottom:23px}.tab{border:0;background:none;padding:12px 0;font-size:15px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px;font-weight:550}.tab[aria-selected=true]{border-bottom-color:var(--accent);color:var(--accent)}.tab small{background:var(--surface);border:1px solid var(--line);font-size:12px;padding:1px 5px;border-radius:4px;margin-left:6px}.tab:focus-visible{outline-offset:0}.panel[hidden]{display:none}.layer-tools{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:17px}.layer-tools h3{font-size:17px;margin:0;font-weight:600}.layer-tools p{font-size:13px;margin:3px 0 0;color:var(--muted)}.layer-tools .actions{display:flex;gap:6px;flex:none}.layer-path{display:flex;align-items:center;gap:7px;margin:0 0 20px;overflow:auto;padding:3px 1px 5px}.path-node{background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:7px 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.fold-body{background:var(--surface);border-top:1px solid var(--line)}.content-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:23px 25px;margin:0 0 17px}.answer-top{display:flex;justify-content:space-between;gap:15px;margin-bottom:17px}.answer-top h3{margin:0;font-size:17px}.answer-top span{font-size:13px;color:var(--muted)}.evaluation-note{font-size:14px;color:var(--secondary);margin:0 0 20px;line-height:1.8}.footer{border-top:1px solid var(--line);margin-top:34px;padding-top:18px;color:var(--muted);font-size:12px;line-height:1.8;display:flex;justify-content:space-between;gap:15px;align-items:start}.footer p{margin:0;max-width:720px}.footer a{white-space:nowrap}.empty{padding:25px 12px;color:var(--muted);font-size:14px;text-align:center}.notice{padding:15px;background:var(--surface2);border-radius:7px;color:var(--secondary);font-size:14px}
@media(min-width:1600px){.shell{grid-template-columns:310px minmax(0,1fr)}main{padding-inline:60px}.sidebar-intro{padding-top:31px}}
@media(max-width:1100px){.shell{grid-template-columns:260px minmax(0,1fr)}main{padding:24px}.topbar{padding-inline:23px}.brand{min-width:213px}.stat{padding:14px 13px}.stat-value{font-size:23px}.layer-tools{align-items:start}.layer-tools .actions{flex-direction:column;gap:5px}}
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@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}