:root{--bg:#071016;--surface:#0c1921;--raised:#11242d;--ink:#e1edf0;--muted:#96aeb9;--faint:#607e8c;--line:#243943;--teal:#41d5b6;--teal-dim:#123b37;--amber:#e8b66e;--violet:#b3a0f4;--sans:Inter,system-ui,sans-serif;--mono:'DM Mono',monospace;--serif:Fraunces,Georgia,serif;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.6}button,input,select{font:inherit;color:inherit}button,a,input,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:2px solid var(--teal);outline-offset:4px}button{border:0}button:hover{transition:background .15s,border-color .15s}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:500}h2{font-family:var(--serif);font-size:24px;line-height:1.3}.eyebrow{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.14em;font-weight:500;color:var(--muted)}.sr{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip{position:fixed;left:20px;top:-60px;background:var(--teal);color:var(--bg);padding:12px 20px;z-index:20}.skip:focus{top:10px}.topbar{min-height:76px;display:flex;align-items:center;gap:30px;padding:16px 32px;border-bottom:1px solid var(--line);background:#08141c}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);font-family:var(--mono);letter-spacing:.16em;font-size:12px;flex:none;line-height:1.5}.brand:hover{text-decoration:none}.brand small{display:block;font-size:9px;color:var(--muted);letter-spacing:.18em}.brand-mark{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--teal);border-radius:4px;color:var(--teal);letter-spacing:0;font-size:14px}.global-search{position:relative;max-width:490px;width:100%;margin-left:46px}.global-search input{width:100%;background:#0d1d26;border:1px solid var(--line);padding:10px 40px;border-radius:5px;min-height:42px;font-size:12px}.global-search input::placeholder{color:#87a0ad}.global-search svg{width:17px;height:17px;fill:none;stroke:var(--muted);stroke-width:1.5;position:absolute;left:13px;top:13px}.global-search kbd{position:absolute;right:12px;top:10px;border:1px solid var(--line);padding:0 6px;font-family:var(--mono);color:var(--muted)}.catalog-link{margin-left:auto;white-space:nowrap;font-size:11px;color:var(--muted)}.private-pill{display:flex;align-items:center;gap:7px;font-family:var(--mono);font-size:9px;letter-spacing:.09em;white-space:nowrap;color:var(--teal)}.private-pill i{width:5px;height:5px;background:var(--teal);border-radius:50%}.app-shell{display:grid;grid-template-columns:232px minmax(0,1fr);max-width:1680px;margin:auto}.sidebar{border-right:1px solid var(--line);padding:30px 20px 22px;position:sticky;top:0;height:calc(100vh - 76px);display:flex;flex-direction:column;gap:22px}.nav-intro p{font-family:var(--serif);font-size:19px;line-height:1.35;margin:12px 0 20px}.sidebar #topic-menu{overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--line) transparent;padding-right:4px}.topic-group{margin:0 0 6px}.topic-group summary{cursor:pointer;font-family:var(--mono);font-size:9px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:12px 0;display:flex;justify-content:space-between;align-items:center}.topic-group summary:after{content:'+';font-size:15px;font-weight:400;color:var(--faint)}.topic-group[open] summary:after{content:'−'}.topic-group button,.path-nav{width:100%;text-align:left;background:transparent;display:flex;align-items:center;gap:10px;padding:8px 10px;min-height:38px;font-size:11px;color:var(--muted);border-radius:4px;line-height:1.45}.topic-group button:hover,.path-nav:hover{background:var(--raised);color:var(--ink)}.topic-group button[aria-current=true]{background:var(--teal-dim);color:var(--teal)}.topic-index{font-family:var(--mono);font-size:9px;color:var(--faint);min-width:22px}.topic-group button[aria-current=true] .topic-index{color:var(--teal)}.nav-paths{margin-top:24px;border-top:1px solid var(--line);padding-top:22px}.nav-paths>div{margin-top:10px}.path-nav:before{content:'↗';font-family:var(--mono);color:var(--faint)}.path-nav[aria-current=true]{color:var(--teal)}.sidebar-footer{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-family:var(--mono);font-size:10px;color:var(--muted)}.sidebar-footer span{color:var(--teal)}.sidebar-footer p{font-family:var(--sans);font-size:10px;margin-top:4px}.sidebar-footer button{margin-top:8px;padding:0;background:none;color:var(--faint);font-size:10px;text-decoration:underline;min-height:32px}.mobile-toggle{display:none}#workspace{padding:30px 36px 24px;min-width:0;outline:0}.breadcrumb{font-family:var(--mono);font-size:10px;color:var(--faint);display:flex;gap:10px;align-items:center;margin-bottom:24px}.breadcrumb span:last-child{color:var(--muted)}.hero{display:flex;justify-content:space-between;gap:30px;margin-bottom:24px}.hero-copy{max-width:650px}.hero .eyebrow{color:var(--teal);margin-bottom:8px}.hero h1{font-family:var(--serif);font-size:clamp(34px,3.5vw,52px);line-height:1.08;letter-spacing:-.035em;margin-bottom:16px}.hero p{max-width:600px;color:var(--muted);font-size:13px;line-height:1.8}.hero-meta{display:flex;gap:16px;margin-top:18px;align-items:center;font-family:var(--mono);font-size:10px;color:var(--muted)}.hero-meta span+span:before{content:'·';padding-right:16px;color:var(--faint)}.hero-stamp{font-family:var(--mono);font-size:10px;color:var(--faint);text-align:right;flex:none;align-self:flex-start;padding-top:7px}.hero-stamp strong{display:block;color:var(--teal);font-size:20px;letter-spacing:-.04em;font-weight:400}.goal-switch{display:flex;gap:4px;background:#0b1821;border:1px solid var(--line);border-radius:5px;padding:4px;width:fit-content;max-width:100%;margin-bottom:22px}.goal-switch button{background:none;padding:8px 18px;min-height:36px;font-size:11px;color:var(--muted);border-radius:3px}.goal-switch button[aria-pressed=true]{background:var(--raised);color:var(--ink);box-shadow:0 1px 5px #0003}.goal-switch button small{color:var(--teal);padding-right:6px;font-family:var(--mono)}.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:22px;align-items:start}.map-column{min-width:0}.panel{border:1px solid var(--line);background:var(--surface);border-radius:7px;overflow:hidden}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 22px 16px}.panel-heading h2{font-size:21px;margin-top:5px}.map-hint{font-size:9px;color:var(--faint);font-family:var(--mono);max-width:80px;text-align:right}.concept-canvas{position:relative;min-height:345px;background-image:radial-gradient(#24414a 1px,transparent 1px);background-size:18px 18px;border-top:1px solid #1b303b;border-bottom:1px solid #1b303b}.graph-wires{position:absolute;width:100%;height:100%;inset:0;overflow:visible;pointer-events:none}.graph-wires path{stroke:#375b68;fill:none;stroke-width:1;stroke-dasharray:4 5;vector-effect:non-scaling-stroke}.graph-wires .primary{stroke:#3aa58f;stroke-dasharray:none}.node{position:absolute;display:flex;flex-direction:column;text-align:left;align-items:start;background:#0d1d27;border:1px solid #36505c;border-radius:6px;padding:14px 13px;width:29%;min-height:110px;box-shadow:0 7px 14px #0002;z-index:1}.node:hover{background:#142b34;border-color:var(--teal)}.node .eyebrow{font-size:8px;letter-spacing:.1em;color:var(--faint);margin-bottom:6px}.node strong{font-family:var(--serif);font-weight:500;font-size:17px;line-height:1.25;color:var(--ink)}.node .node-note{font-size:9px;color:var(--muted);margin-top:7px;line-height:1.45}.node .node-arrow{font-size:12px;color:var(--teal);position:absolute;right:10px;top:10px}.node-left-a{left:3%;top:28px}.node-left-b{left:3%;top:205px}.node-right-a{right:3%;top:28px}.node-right-b{right:3%;top:205px}.node-center{left:36%;top:115px;width:28%;min-height:115px;border:1px solid #3fc0a6;background:linear-gradient(145deg,#174139,#102d2b);box-shadow:0 0 35px #38d4b30a}.node-center .eyebrow{color:var(--teal)}.node-center strong{font-size:24px;line-height:1.15}.node-center .node-note{color:#a8cabe}.node-empty{cursor:default}.node-empty:hover{background:#0d1d27;border-color:#36505c}.map-caption{padding:12px 22px;font-size:10px;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap}.map-caption span{display:flex;gap:7px;align-items:center}.legend-line{width:16px;border-top:1px solid #3aa58f}.legend-line.dashed{border-top:1px dashed #738997}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:24px 0 15px}.section-heading h2{margin-top:5px}.section-heading>span{font-family:var(--mono);font-size:10px;color:var(--muted);white-space:nowrap}.route-list{display:flex;flex-direction:column;gap:8px}.route-step{display:grid;grid-template-columns:36px 1fr auto;align-items:center;gap:12px;background:#0b1821;border:1px solid var(--line);border-radius:5px;padding:12px 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14px}.lab-detail{position:sticky;top:22px;padding:22px}.lab-detail .eyebrow{color:var(--teal)}.lab-detail h2{font-size:28px;margin-top:10px;line-height:1.15}.detail-tags{display:flex;gap:7px;align-items:center;margin:12px 0 16px}.detail-copy{font-size:11px;color:var(--muted);line-height:1.85;margin-bottom:18px}.try-block{border-top:1px solid var(--line);padding-top:17px;margin-top:17px}.try-block h3{font-family:var(--mono);font-size:9px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;margin-bottom:8px}.try-block p{font-size:12px;line-height:1.7}.try-block.notice{padding:13px 14px;border:1px solid #21473f;border-left:2px solid var(--teal);border-radius:3px;background:#0d2421;margin-top:16px}.try-block.notice h3{color:var(--teal)}.try-block.notice p{font-size:11px;color:#b0c9bf}.open-lab{display:flex;justify-content:space-between;align-items:center;background:var(--teal);color:#06231c;padding:11px 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0;font-size:11px;text-align:left;display:block;min-height:36px}.share-selection{display:inline-block;font-family:var(--mono);font-size:9px;color:var(--muted);margin-top:12px;padding:6px 0}.topic-labs{margin-top:28px}.topic-labs .section-heading{align-items:center}#level-filter{display:flex;gap:4px;flex-wrap:wrap}#level-filter button{background:none;font-size:9px;min-height:32px;padding:6px 8px;border-radius:3px;border:1px solid transparent;color:var(--muted)}#level-filter button[aria-pressed=true]{border-color:var(--line);background:var(--raised);color:var(--ink)}.lab-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.lab-card{background:#0b1821;border:1px solid var(--line);border-radius:5px;text-align:left;padding:17px;display:flex;flex-direction:column;align-items:start;min-height:176px}.lab-card:hover,.lab-card[aria-current=true]{border-color:#3b6b70;background:var(--raised)}.lab-card[aria-current=true]{border-top:2px solid var(--teal);padding-top:16px}.lab-card .lab-kicker{font-family:var(--mono);font-size:8px;letter-spacing:.08em;color:var(--faint);text-transform:uppercase}.lab-card h3{font-family:var(--serif);font-size:20px;color:var(--ink);margin:9px 0 7px;line-height:1.25}.lab-card p{font-size:10px;color:var(--muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}.lab-card footer{margin-top:auto;display:flex;justify-content:space-between;align-items:center;width:100%;gap:6px}.lab-card footer>span:last-child{color:var(--teal);font-size:10px}.empty-state{padding:24px;border:1px dashed var(--line);color:var(--muted);font-size:12px;grid-column:1/-1;border-radius:5px}.checkpoint{margin-top:28px;display:grid;grid-template-columns:1fr 1.25fr;gap:30px;padding:24px}.checkpoint h2{font-size:25px;margin:7px 0}.checkpoint .question{font-size:12px;line-height:1.7;margin-top:12px}.checkpoint-options{display:flex;flex-direction:column;gap:7px}.checkpoint-options button{display:flex;gap:10px;align-items:center;background:#0d1e27;border:1px solid var(--line);text-align:left;padding:10px 12px;border-radius:4px;font-size:11px;min-height:44px}.checkpoint-options button span{font-family:var(--mono);font-size:9px;color:var(--faint)}.checkpoint-options button:hover{border-color:#508b8b}.checkpoint-options button.correct{border-color:var(--teal);background:#12352f}.checkpoint-options button.incorrect{border-color:var(--amber)}.quiz-feedback{font-size:11px;color:var(--muted);padding:10px 0}.quiz-feedback strong{color:var(--teal);display:block;margin-bottom:4px}.workspace-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:32px;padding-top:18px;color:var(--faint);font-family:var(--mono);font-size:9px}.workspace-footer details{max-width:430px;text-align:right}.workspace-footer summary{cursor:pointer;color:var(--muted)}.workspace-footer details p{text-align:left;font-family:var(--sans);font-size:11px;line-height:1.7;margin-top:10px}.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:#15392f;border:1px solid #3b7965;border-radius:5px;padding:11px 18px;color:#d0efe2;box-shadow:0 4px 20px #0006;font-size:12px;z-index:30;max-width:calc(100% - 30px);pointer-events:none}.toast:empty{display:none}#search-results{position:absolute;z-index:15;left:0;right:0;top:50px;border:1px solid #395562;background:#10212b;border-radius:5px;max-height:440px;overflow:auto;padding:8px;box-shadow:0 12px 40px #0008}#search-results .result-heading{font-family:var(--mono);font-size:9px;color:var(--faint);letter-spacing:.1em;padding:8px 10px}#search-results button{display:flex;justify-content:space-between;gap:16px;background:none;min-height:40px;border-radius:3px;padding:9px 10px;font-size:12px;text-align:left;width:100%}#search-results button:hover{background:var(--raised)}#search-results button small{font-family:var(--mono);font-size:8px;color:var(--faint);white-space:nowrap}.search-empty{padding:15px;font-size:12px;color:var(--muted)}.loading{padding:40px;color:var(--muted)}[hidden]{display:none!important}
@media(min-width:1600px){#workspace{padding-left:48px;padding-right:48px}.workspace-grid{grid-template-columns:minmax(0,1fr) 310px}.concept-canvas{min-height:365px}.node-right-b,.node-left-b{top:222px}.node-center{top:127px}.node strong{font-size:19px}.node-center strong{font-size:26px}}
@media(max-width:1240px){.topbar{gap:20px;padding-left:22px;padding-right:22px}.global-search{margin-left:12px}.app-shell{grid-template-columns:200px minmax(0,1fr)}.sidebar{padding-left:14px;padding-right:14px}#workspace{padding:28px 24px}.workspace-grid{grid-template-columns:minmax(0,1fr) 255px;gap:16px}.lab-detail{padding:18px}.node{padding:12px 9px}.node strong{font-size:15px}.node-center strong{font-size:20px}.map-hint{display:none}.panel-heading{padding:18px}.map-caption{padding:12px 16px}.lab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-stamp{display:none}}
@media(max-width:1050px){.workspace-grid{grid-template-columns:minmax(0,1fr)}.lab-detail{position:static;display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.lab-detail>header{grid-column:1/-1}.lab-detail .try-block{margin-top:0;padding-top:15px}.lab-detail .try-block.notice{margin-top:12px}.lab-detail .detail-actions{grid-row:3;grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:7px}.detail-actions .open-lab,.detail-actions .mark-lab{margin-top:10px}.lab-detail .next-step{margin-top:14px}.lab-detail .share-selection{align-self:end}.concept-canvas{min-height:345px}.node strong{font-size:18px}.node-center strong{font-size:25px}}
@media(max-width:760px){.topbar{flex-wrap:wrap;padding:14px 18px;gap:12px;min-height:116px}.brand{font-size:11px}.brand-mark{width:32px;height:32px}.catalog-link{display:none}.private-pill{margin-left:auto;font-size:8px}.global-search{order:3;margin:0;max-width:none}.global-search input{min-height:38px;font-size:11px}.global-search svg{top:11px}.global-search kbd{top:8px}.app-shell{display:block}.sidebar{position:static;height:auto;border:0;border-bottom:1px solid var(--line);padding:0;background:#0b1820;display:block}.mobile-toggle{display:flex;width:100%;min-height:44px;padding:12px 20px;background:none;justify-content:space-between;color:var(--muted);font-size:11px}.sidebar #topic-menu{display:none;padding:20px;max-height:420px}.sidebar #topic-menu.mobile-open{display:block}.nav-intro{display:none}.sidebar-footer{display:none}#workspace{padding:22px 18px}.breadcrumb{font-size:9px;gap:7px;margin-bottom:18px}.hero h1{font-size:38px}.hero p{font-size:12px}.hero-meta{font-size:9px;gap:10px}.hero-meta span+span:before{padding-right:10px}.hero{margin-bottom:20px}.goal-switch{width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.goal-switch button{padding:8px 5px;font-size:10px}.goal-switch button small{display:none}.workspace-grid{gap:18px}.panel-heading h2{font-size:20px}.node strong{font-size:16px}.node-center strong{font-size:22px}.lab-detail{padding:20px;display:block}.lab-detail .try-block{margin-top:17px}.lab-detail .detail-actions{display:block}.detail-actions .open-lab{margin-top:22px}.detail-actions .mark-lab{margin-top:9px}.topic-labs .section-heading{display:block}.topic-labs #level-filter{margin-top:14px}.checkpoint{display:block;padding:20px}.checkpoint-options{margin-top:20px}.workspace-footer{display:block}.workspace-footer details{text-align:left;margin-top:12px;max-width:none}.section-heading h2{font-size:23px}.route-step{padding:12px;grid-template-columns:30px 1fr auto;gap:9px}.route-step[aria-current=true]{padding-left:10px}.route-step h3{font-size:12px}.route-step p{font-size:10px}.lab-card{padding:15px}}
@media(max-width:500px){.concept-canvas{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:16px;min-height:0}.graph-wires{display:none}.node{position:relative!important;left:auto!important;right:auto!important;top:auto!important;width:100%!important;min-height:110px;box-shadow:none;padding:13px}.node-center{grid-column:1/-1;grid-row:1;min-height:90px;justify-content:center}.node-center strong{font-size:26px}.node-center .node-note{font-size:10px}.node strong{font-size:17px}.node .node-note{font-size:10px}.node-right-a,.node-right-b{border-style:dashed}.map-caption{display:block}.map-caption span+span{margin-top:7px}.hero h1{font-size:36px}.lab-grid{grid-template-columns:1fr}.lab-card{min-height:158px}.level-tag{font-size:7px}.route-step .level-tag{display:none}.route-step{grid-template-columns:30px 1fr}.checkpoint h2{font-size:24px}.private-pill{font-size:7px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.map-caption{display:block}.map-legend{display:flex;gap:18px;flex-wrap:wrap}.connection-notes{margin-top:10px;padding-top:9px;border-top:1px solid var(--line);font-size:10px}.connection-notes summary{cursor:pointer;color:var(--muted)}.connection-notes ul{list-style:none;padding:0;margin:10px 0 2px;display:flex;flex-direction:column;gap:10px}.connection-notes button{background:none;color:var(--teal);padding:2px 0;text-align:left;font-size:11px;min-height:28px}.connection-notes p{font-size:10px;line-height:1.7;color:var(--muted);margin-top:2px}
/* Learner workspace: current selection, complete neighborhoods, and resuming work. */
.featured-topic{width:100%;display:flex;justify-content:space-between;gap:10px;text-align:left;background:none;color:var(--muted);font-size:11px;min-height:40px;padding:9px 10px;border-radius:4px}.featured-topic:hover{background:var(--raised);color:var(--ink)}.featured-topic[aria-current=true]{background:var(--teal-dim);color:var(--teal)}#featured-topics>.eyebrow{margin:0 0 8px}.all-topics{margin-top:20px;padding-top:8px;border-top:1px solid var(--line)}.all-topics>summary{font-family:var(--mono);font-size:10px;color:var(--muted);cursor:pointer;padding:9px 0}.nav-intro p{margin-bottom:20px;font-size:19px}.resume-card{display:flex;justify-content:space-between;align-items:center;gap:24px;background:linear-gradient(100deg,#10392f,#10272a);border:1px solid #2f6b5c;border-radius:6px;padding:16px 20px;margin:0 0 24px}.resume-card strong{display:block;font-size:13px;font-weight:500;color:#c2e8dd;margin-top:5px}.resume-card p{font-size:11px;color:var(--muted);margin-top:3px}.resume-card button{background:var(--teal);color:#06231c;padding:10px 14px;min-height:42px;border-radius:4px;font-size:11px;max-width:50%;text-align:left}.topic-primer{margin-bottom:24px}.graph-toolbar{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:12px 18px;border-top:1px solid var(--line);background:#0b1922}.graph-toolbar>div{display:flex;gap:5px}.graph-toolbar button{background:none;border:1px solid transparent;color:var(--muted);min-height:34px;border-radius:4px;padding:7px 10px;font-size:10px}.graph-toolbar button[aria-pressed=true]{background:var(--raised);color:var(--teal);border-color:#2c554f}.graph-toolbar button span{font-family:var(--mono);font-size:9px;opacity:.7;margin-left:6px}.graph-toolbar p{font-family:var(--mono);font-size:9px;color:var(--faint);line-height:1.4;text-align:right}.network-canvas{min-height:435px}.network-canvas .graph-node{width:29%;min-height:112px;max-height:124px;overflow:auto;padding:12px 11px}.network-canvas .graph-node strong{font-size:17px;overflow-wrap:anywhere}.network-canvas .graph-node .eyebrow{font-size:8px}.network-canvas .node-center{left:36%;top:162px;width:28%;min-height:112px;padding:15px 12px}.network-canvas .node-center strong{font-size:22px;overflow-wrap:anywhere}.graph-node.selected{border-color:var(--teal);box-shadow:0 0 0 2px #41d5b618;background:#15352f}.graph-pager{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:9px;color:var(--muted)}.graph-pager button{background:none;color:var(--teal);font-size:10px;min-height:36px;padding:6px 3px}.graph-pager button:disabled{color:var(--faint);opacity:.55}.graph-empty{position:absolute;left:3%;bottom:20px;width:29%;font-size:11px;color:var(--muted);background:var(--surface);padding:12px;border-radius:4px}.next-label{font-family:var(--mono);font-size:7px;letter-spacing:.05em;color:var(--teal);margin-left:8px;display:inline-block}.finish-step{display:block;width:100%;background:#15372f;border:1px solid #2e6456;border-radius:4px;color:#bde8d8;font-size:10px;min-height:42px;padding:10px;text-align:left;margin-top:10px}.finish-step:hover{background:#205044}.reflection-block{border-top:1px solid var(--line);margin-top:18px;padding-top:16px}.reflection-block label{display:block;font-family:var(--mono);text-transform:uppercase;font-size:9px;letter-spacing:.08em;color:var(--teal)}.reflection-block p{font-size:11px;color:var(--muted);line-height:1.7;margin:8px 0}.reflection-block textarea{display:block;width:100%;resize:vertical;min-height:90px;max-height:260px;background:#091720;color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:10px;font-family:var(--sans);font-size:12px;line-height:1.6}.reflection-block textarea:focus-visible{outline:2px solid var(--teal);outline-offset:2px}.reflection-block>span{display:block;font-size:9px;color:var(--faint);margin-top:6px}.lab-detail .module-prep{font-size:10px;margin-top:12px;padding-top:10px}.prep-notes>summary{color:var(--teal)}
@media(max-width:1240px){.network-canvas .graph-node strong{font-size:15px}.network-canvas .graph-node{padding:11px 8px}.network-canvas .node-center strong{font-size:20px}.graph-toolbar{padding:10px 14px}}
@media(max-width:1050px){.reflection-block{grid-column:1/-1}.lab-detail .prep-notes{grid-column:1/-1}.lab-detail .next-step{grid-column:1/-1}.lab-detail .share-selection{grid-column:1/-1}.network-canvas .graph-node strong{font-size:18px}.network-canvas .node-center strong{font-size:24px}}
@media(max-width:760px){.resume-card{display:block;padding:15px}.resume-card button{max-width:100%;width:100%;margin-top:12px}.next-label{display:block;margin:2px 0 0}.network-canvas .graph-node strong{font-size:16px}.network-canvas .node-center strong{font-size:22px}.graph-toolbar{align-items:start}.graph-toolbar p{max-width:85px}.graph-toolbar button{font-size:9px;padding:7px}.graph-pager{padding:10px 12px;gap:9px}.graph-pager button{font-size:9px}.graph-pager>span{white-space:nowrap;font-size:8px}}
@media(max-width:500px){.network-canvas{min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:16px}.network-canvas .node-center{grid-row:1;grid-column:1/-1;max-height:none;min-height:96px}.network-canvas .graph-node{width:100%!important;max-height:none;min-height:124px}.network-canvas .graph-node strong{font-size:17px}.network-canvas .graph-node .node-note{font-size:10px}.graph-empty{position:static;width:auto;grid-column:1/-1}.graph-toolbar p{max-width:66px;font-size:8px}.graph-pager>span{display:none}}
.primer-disclosure>summary{display:flex;align-items:center;justify-content:space-between;gap:24px;cursor:pointer;padding:18px 22px;list-style:none;background:linear-gradient(100deg,#112e2a,#0c1c25)}.primer-disclosure>summary::-webkit-details-marker{display:none}.primer-disclosure>summary strong{display:block;font-family:var(--serif);font-size:23px;font-weight:500;margin-top:5px;color:var(--ink)}.primer-disclosure>summary p{font-size:11px;color:var(--muted);margin-top:5px;line-height:1.6}.primer-action{font-size:11px;color:var(--teal);white-space:nowrap}.primer-disclosure[open]>summary{border-bottom:1px solid var(--line)}.primer-disclosure .factor-lesson{margin-top:0;border:0;border-radius:0}.primer-disclosure[open] .primer-action{font-size:0}.primer-disclosure[open] .primer-action:after{content:'Close experiment ↑';font-size:11px}
@media(max-width:760px){.primer-disclosure>summary{display:block;padding:16px 18px}.primer-action{display:block;margin-top:12px}.primer-disclosure>summary strong{font-size:22px}}