:root{--bg-primary: #ffffff;--bg-secondary: #fbfcfe;--bg-tertiary: #f5f7fa;--bg-info: #eaf3ff;--bg-warning: #fff4e5;--bg-danger: #fcebeb;--text-primary: #111318;--text-secondary: #667085;--text-tertiary: #7c8493;--text-info: #006edc;--text-warning: #9a5800;--text-danger: #a32d2d;--border-tertiary: rgba(17, 24, 39, .08);--border-secondary: rgba(17, 24, 39, .15);--border-primary: rgba(17, 24, 39, .24);--border-info: #80bfff;--border-danger: #f09595;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 22px;--accent: #0a84ff;--accent-2: #ff9f0a;--warm: #ff9f0a;--surface: #ffffff;--surface-2: #fbfcfe;--border: #e3e7ee;--ink: #111318;--shadow-card: 0 1px 2px rgba(15, 23, 42, .04), 0 10px 30px rgba(15, 23, 42, .055);--shadow-elevated: 0 18px 48px rgba(15, 23, 42, .13);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, 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9px;font-size:12px;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-md);display:inline-flex;align-items:center;gap:5px;font-family:inherit}.rc-btn:hover{background:var(--bg-primary)}.rc-btn:disabled{opacity:.4;cursor:default}.rc-btn.ai{color:var(--text-info)}.rc-div{width:.5px;height:16px;background:var(--border-tertiary);margin:0 4px}.rc-main{display:grid;grid-template-columns:1fr 260px;min-height:420px}.rc-reading{padding:20px 24px;border-right:.5px solid var(--border-tertiary);font-size:14px;line-height:1.7;color:var(--text-primary);position:relative}.rc-reading h3{font-size:15px;margin:0 0 12px;font-weight:500}.rc-reading p{margin:0 0 10px}.rc-hl{background:var(--bg-warning);color:inherit;padding:1px 2px;cursor:pointer}.rc-hl-note{border-bottom:1.5px dotted var(--text-warning)}@keyframes rc-flash{0%{box-shadow:0 0 0 3px var(--border-info);background:var(--bg-info)}to{box-shadow:0 0 0 0 transparent}}.rc-hl-flash{animation:rc-flash 1.2s 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7px;border-radius:var(--radius-md);font-weight:500}.id-tag.c1{background:var(--bg-info);color:var(--text-info)}.id-tag.c2{background:var(--bg-warning);color:var(--text-warning)}.id-tag.c3{background:var(--bg-secondary);color:var(--text-tertiary)}.id-name{color:var(--text-primary);font-weight:500;font-size:12px}.id-traj{display:flex;gap:3px;flex:1}.id-dot{width:14px;height:14px;border-radius:3px;background:var(--bg-secondary)}.id-dot.d1{background:#e1f5ee}.id-dot.d2{background:#9fe1cb}.id-dot.d3{background:#5dcaa5}.id-dot.d4{background:#1d9e75}.id-dot.dn{background:var(--bg-tertiary);border:.5px solid var(--border-tertiary)}.id-dot.warn{background:#f09595}.id-num{font-size:12px;color:var(--text-secondary);min-width:40px;text-align:right}.id-warn-box{background:var(--bg-danger);border:.5px solid var(--border-danger);border-radius:var(--radius-md);padding:11px 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auto}.id-heat-q{color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.id-conf-list{margin:0;padding-left:18px;font-size:12px;line-height:1.7;color:var(--text)}.id-conf-list b{color:var(--text-muted);font-weight:600}.id-legend{display:flex;align-items:center;gap:12px;margin-top:10px;font-size:11px;color:var(--text-tertiary);flex-wrap:wrap}.id-legend-item{display:flex;align-items:center;gap:5px}.ch-search{width:100%;font-size:11px;padding:5px 8px;border:.5px solid var(--border-tertiary);border-radius:var(--radius-md);background:var(--bg-primary);font-family:inherit;color:var(--text-primary);margin-bottom:9px}.ch-search::placeholder{color:var(--text-tertiary)}.ch-item{background:var(--bg-primary);border:.5px solid var(--border-tertiary);border-radius:var(--radius-md);margin-bottom:7px;overflow:hidden}.ch-item-head{display:flex;align-items:flex-start;gap:7px;padding:8px 9px;cursor:pointer}.ch-item-icon{flex-shrink:0;color:var(--text-info);margin-top:1px;font-size:14px}.ch-item-body{flex:1;min-width:0}.ch-item-meta{font-size:10px;color:var(--text-tertiary);margin-bottom:3px;display:flex;gap:5px;align-items:center}.ch-item-anchor{font-size:11px;color:var(--text-primary);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ch-item.expanded{border-color:var(--border-secondary)}.ch-item.expanded .ch-item-head{border-bottom:.5px solid var(--border-tertiary);background:var(--bg-secondary)}.ch-thread{padding:9px 11px;font-size:11px;line-height:1.55}.ch-turn{margin-bottom:8px}.ch-turn:last-child{margin-bottom:0}.ch-turn-label{font-size:10px;color:var(--text-tertiary);margin-bottom:3px;font-weight:500;display:flex;align-items:center;gap:3px}.ch-turn.ai .ch-turn-label{color:var(--text-info)}.ch-turn-text{color:var(--text-primary);line-height:1.5}.ch-turn-text.muted{color:var(--text-secondary);font-style:italic}.side-empty{font-size:12px;color:var(--text-tertiary);text-align:center;padding:24px 8px;line-height:1.5}.telemetry{margin-top:12px;border:.5px solid var(--border-tertiary);border-radius:var(--radius-md);font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:11px;overflow:hidden;background:var(--bg-secondary)}.telemetry-head{display:flex;align-items:center;justify-content:space-between;padding:7px 12px;color:var(--text-tertiary);cursor:pointer}.telemetry-head:hover{color:var(--text-secondary)}.telemetry-log{max-height:180px;overflow-y:auto;padding:8px 12px;background:var(--bg-primary);border-top:.5px solid var(--border-tertiary)}.telemetry-row{display:flex;gap:10px;padding:1px 0;white-space:nowrap}.telemetry-row .ts{color:var(--text-tertiary)}.telemetry-row .ev{color:var(--text-info);min-width:200px}.telemetry-row .pl{color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis}.app-loading{min-height:100vh;display:grid;place-items:center;padding:80px 24px;color:var(--text-secondary);font-family:var(--font-sans)}.app-loading:before{content:"";width:18px;height:18px;margin-right:10px;border:2px solid var(--border-secondary);border-top-color:var(--accent);border-radius:50%;animation:appSpin .7s linear infinite}@keyframes appSpin{to{transform:rotate(360deg)}}.app-frame{max-width:1120px;padding:24px 24px 72px}html[data-view=admin] .app-frame,html[data-view=instructor] .app-frame{max-width:1240px}.admin-thresholds .rn-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 20px}.admin-thresholds .rn-field{align-content:start;margin-bottom:0}.admin-thresholds .rn-input{max-width:none!important}.admin-thresholds .rn-actions{grid-column:1 / -1}html[data-view=ingest] .app-frame{max-width:1120px}html[data-view=study] .app-frame{max-width:920px;padding-top:40px}.app-bar{position:sticky;top:12px;z-index:40;min-height:64px;padding:11px 14px;margin-bottom:18px;background:#ffffffe0;border:1px solid var(--border-tertiary);border-radius:18px;box-shadow:0 1px 2px #0f172a06;-webkit-backdrop-filter:saturate(135%) blur(18px);backdrop-filter:saturate(135%) blur(18px)}.app-bar .brand{font-weight:650;letter-spacing:-.01em}.app-bar .brand:before{content:"";width:28px;height:28px;display:inline-block;background:url(/icons/favicon.svg) center / contain no-repeat;border-radius:8px;box-shadow:0 2px 7px #0a84ff33;flex:none}.backend-badge{display:inline-flex;align-items:center;min-height:24px;padding:3px 9px;border:1px solid color-mix(in srgb,var(--accent) 18%,transparent);border-radius:999px;font-weight:650}.cond-switch{min-height:38px;padding:4px;border:1px solid var(--border-tertiary);border-radius:12px}.cond-switch button{min-width:42px;border-radius:9px}.cond-switch 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