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var(--rule-soft)}a.list-row:hover{background:var(--surface-2)}.list-row-main{flex:1;min-width:0}.list-row-title{color:var(--ink);font-size:14px;font-weight:500}.list-row-meta{color:var(--ink-3);margin-top:2px;font-size:12px}.list-row-side{flex-shrink:0;align-items:center;gap:10px;display:flex}.list-row-chevron{color:var(--ink-4);font-size:14px}.avatar-chip{background:var(--green-50);width:32px;height:32px;color:var(--green-700);border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;font-size:11.5px;font-weight:600;display:flex}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;display:grid}.grading-scripts-list{flex-direction:column;display:flex}.grading-script-btn{border:none;border-bottom:1px solid var(--rule-soft);cursor:pointer;text-align:left;width:100%;font:inherit;justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;display:flex}@media (max-width:900px){.grading-layout{grid-template-columns:1fr!important}.grading-scripts{order:1;max-height:none!important}.grading-scripts-list{flex-direction:row;display:flex;overflow-x:auto}.grading-script-btn{border-bottom:none;border-right:1px solid var(--rule-soft);flex-direction:column;align-items:flex-start;min-width:140px}.grading-main{order:2;max-height:none!important}.grading-solution{order:3;height:70vh!important;position:static!important}}@media (max-width:1000px){.planner-shell{height:auto!important}.planner-layout{grid-template-columns:1fr!important;height:auto!important}.planner-chat{order:1;height:60vh}.planner-plan{order:2;height:40vh}.planner-history{order:3;height:160px}}@media (max-width:1100px){.tb-layout{grid-template-columns:1fr!important}.tb-filters{order:1}.tb-results{order:2}.tb-basket{order:3}}@media (max-width:760px){.tb-preview-split{grid-auto-rows:1fr;grid-template-columns:1fr!important}}@media (max-width:560px){.perf-mock-row{grid-template-rows:auto auto;grid-template-columns:1fr auto!important}.perf-mock-row>span:first-child{grid-area:1/1}.perf-mock-row>span:nth-child(2){grid-area:2/1}.perf-mock-row>span:nth-child(3){grid-area:2/1;margin-left:6px}.perf-mock-row>span:nth-child(4){grid-area:1/2/3;align-self:center}}@media (max-width:700px){.heatmap-row{grid-template-areas:"topic pct""bar bar""label actions";grid-template-columns:1fr auto!important;row-gap:6px!important}.heatmap-row>span:first-child{grid-area:topic}.heatmap-row>span:nth-child(2){grid-area:pct}.heatmap-row>div:nth-child(3){grid-area:bar}.heatmap-row>span:nth-child(4){grid-area:label;justify-self:start}.heatmap-row>span:nth-child(5){grid-area:actions}.hardest-q-row{grid-template-areas:"prompt pct""bar bar"".actions";grid-template-columns:1fr auto!important;row-gap:6px!important}.hardest-q-row>div:first-child{grid-area:prompt}.hardest-q-row>span:nth-child(2){grid-area:pct}.hardest-q-row>div:nth-child(3){grid-area:bar}.hardest-q-row>span:nth-child(4){grid-area:actions}}.field-row{grid-template-columns:140px 1fr;align-items:center;gap:16px;display:grid}@media (max-width:560px){.field-row{grid-template-columns:1fr;gap:6px}}.toggle-pill{border-radius:var(--radius-sm);border:1px solid var(--rule-strong);background:var(--surface);color:var(--ink-2);cursor:pointer;padding:11px 10px;font-family:Geist,sans-serif;font-size:13px;font-weight:500;transition:border-color .15s,background .15s,color .15s}.toggle-pill:hover{border-color:var(--ink-3)}.toggle-pill-active{border-color:var(--green);background:var(--green-50);color:var(--green-700);font-weight:600}@media (max-width:640px){.page-title{font-size:24px}.page-head{gap:12px;margin-bottom:20px}.page-head>div:last-child{width:100%}.page-head>div:last-child .btn{flex:1}.card-pad{padding:16px}.stat-grid{grid-template-columns:1fr 1fr;gap:10px}.stat{padding:14px 16px}.stat-val{font-size:28px}.list-row{flex-wrap:wrap;padding:11px 14px}.qa{padding:14px 16px}}.chat-md{color:var(--ink);font-size:14px;line-height:1.65}.chat-md>:first-child{margin-top:0}.chat-md>:last-child{margin-bottom:0}.chat-md p{margin:0 0 10px}.chat-md h1,.chat-md h2,.chat-md h3,.chat-md h4{color:var(--ink);margin:16px 0 8px;font-weight:600;line-height:1.3}.chat-md h1{border-bottom:1px solid var(--rule-soft);padding-bottom:5px;font-size:19px}.chat-md h2{font-size:17px}.chat-md h3{text-transform:uppercase;letter-spacing:.04em;color:var(--green-700);font-size:14.5px}.chat-md h4{font-size:14px}.chat-md ul,.chat-md ol{margin:8px 0;padding-left:22px}.chat-md li{margin-bottom:5px}.chat-md li::marker{color:var(--green)}.chat-md strong{font-weight:600}.chat-md a{color:var(--green-700);text-underline-offset:2px;text-decoration:underline}.chat-md blockquote{border-left:3px solid var(--rule-strong);color:var(--ink-2);margin:8px 0;padding:2px 0 2px 12px;font-style:italic}.chat-md code{background:var(--surface-2);border:1px solid var(--rule-soft);border-radius:4px;padding:1px 5px;font-family:Geist Mono,monospace;font-size:.88em}.chat-md pre{color:#e8f0ec;background:#1d2422;border-radius:8px;margin:10px 0;padding:12px 14px;font-size:12.5px;overflow-x:auto}.chat-md pre code{color:inherit;background:0 0;border:none;padding:0}.chat-md table{border-collapse:collapse;width:100%;margin:10px 0;font-size:13px;display:block;overflow-x:auto}.chat-md th,.chat-md td{border:1px solid var(--rule-soft);text-align:left;padding:6px 10px}.chat-md th{background:var(--surface-2);font-weight:600}.chat-md hr{border:none;border-top:1px solid var(--rule-soft);margin:14px 0}.chat-md .katex{font-size:1.02em}.chat-md .katex-display{margin:10px 0;overflow:auto hidden}@keyframes think-bounce{0%,80%,to{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}.think-dot{background:var(--ink-3);border-radius:999px;width:6px;height:6px;animation:1.2s ease-in-out infinite think-bounce;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.diagram-spin{border:2px solid var(--rule-strong);border-top-color:var(--green);border-radius:999px;flex-shrink:0;width:15px;height:15px;animation:.7s linear infinite spin;display:inline-block}.planner-spinner{border:3px solid var(--rule);border-top-color:var(--green);border-radius:999px;flex-shrink:0;width:34px;height:34px;animation:.7s linear infinite spin;display:inline-block}.planner-spinner-sm{border-width:2px;width:15px;height:15px}@media (max-width:860px){.demo-grid{grid-template-columns:1fr!important;gap:32px!important}}@media (max-width:1000px){.dash-split{grid-template-columns:1fr!important}}@media (max-width:860px){.tutor-shell{grid-template-columns:1fr!important}.tutor-shell>.card:first-child{display:none!important}}@media print{.sidebar{display:none!important}.dashboard-shell{display:block!important}.dashboard-content{background:#fff!important;padding:0!important}button,a[role=button],.no-print{display:none!important}body{background:#fff!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}