/* Task and source workspaces: neutral surfaces, readable evidence, deliberate controls. */
[data-anatomy],[data-aisa],.ar-reader-source-desk{--ar-ink:#20242d;--ar-muted:#606773;--ar-line:#d9dde3;--ar-accent:#6251ba}
.ex-anatomy-workspace[data-anatomy]{grid-template-columns:228px minmax(0,1fr);align-items:start;gap:28px;padding:25px;background:#f3f4f6;border-color:var(--ar-line)}
[data-anatomy]>.ex-anatomy-layers{position:sticky;top:115px;gap:8px}
[data-anatomy]>.ex-anatomy-layers button{min-height:52px;border-radius:11px;font-size:13px;line-height:1.45}
[data-anatomy]>.ex-anatomy-layers button[aria-pressed=true]{background:#242832;border-color:#242832}
[data-anatomy]>.ex-anatomy-output{padding:0;min-width:0;align-self:start}
.ar-anatomy-lab{min-width:0;color:var(--ar-ink)}
.ar-objective{padding:9px 4px 25px}
.ar-objective h3{font:400 clamp(28px,3vw,38px)/1.12 var(--serif);letter-spacing:-.025em;margin:15px 0}
.ar-objective p{font-size:15px;margin:0;color:var(--ar-muted)}
.ar-task-stage{padding:25px;border:1px solid var(--ar-line);border-radius:20px;background:#fff;min-width:0}
.ar-task-stage>header{display:flex;justify-content:space-between;gap:15px;align-items:start;padding-bottom:20px;border-bottom:1px solid #e7e9ed}
.ar-stage-label{font-size:11px;line-height:1.5;letter-spacing:.04em;color:var(--ar-muted)}
.ar-learner-instruction{padding:22px 0}
.ar-learner-instruction>p{font:400 clamp(23px,2.1vw,30px)/1.25 var(--serif);margin:12px 0 0;max-width:34ch}
.ar-material-surface{min-height:205px;display:grid;align-items:center;background:#f7f8fa;border:1px solid #e2e4e9;border-radius:14px;padding:23px;transition:width .2s ease,margin .2s ease}
.ar-environment-table .ar-material-surface{width:90%;margin-inline:0 auto;border-bottom:6px solid #c8c4bb;background:#f6f5f2}
.ar-environment-quiet .ar-material-surface{background:#fff;border-color:#b9bec9;max-width:520px;margin-inline:auto}
.ar-environment-quiet .ar-learner-instruction{max-width:32ch}
.ar-task-stage[data-active-layer=instructions] .ar-learner-instruction,.ar-task-stage[data-active-layer=language] .ar-learner-instruction{border-left:3px solid #7b6cbd;padding-left:17px}
.ar-task-stage[data-active-layer=representation] .ar-material-surface{outline:2px solid #9688ca;outline-offset:3px}
.ar-task-stage[data-active-layer=response] .ar-response-workspace{border-left:3px solid #7b6cbd;padding-left:17px}
.ar-counter-material{width:100%}
.ar-counter-collection{display:grid;grid-template-columns:22px minmax(0,1fr);align-items:center;gap:11px;margin:15px 0}
.ar-counter-collection>strong{font:400 25px/1 var(--serif)}
.ar-counter-row{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:7px;align-items:center}
.ar-counter,.ar-counter-space{display:grid;place-items:center;aspect-ratio:1;min-width:0;width:100%;height:auto;margin:0;padding:0;border:1px solid #48405b;border-radius:50%;color:#222332;font:600 11px/1 var(--sans)}
.ar-counter.is-violet{background:#aaa0d4}.ar-counter.is-gold{background:#ddc173;border-color:#7f6728}
.ar-counter.is-paired{border:3px double #393341;box-shadow:0 0 0 2px #fff}
.ar-counter.is-unmatched{outline:2px solid #6251ba;outline-offset:3px}
.ar-counter.is-pointed{box-shadow:0 0 0 3px #fff,0 0 0 6px #302b4f}
.ar-counter:focus-visible{outline:3px solid #242832;outline-offset:4px}
.ar-counter-space{border:0;visibility:hidden}
.ar-pair-caption{font-size:12px!important;line-height:1.65!important;color:var(--ar-muted);margin:20px 0 0}
.ar-numerals{display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap}
.ar-numerals strong{font:400 clamp(54px,6vw,80px)/1 var(--serif)}
.ar-numerals>span{font:400 40px/1 var(--serif);color:#676170}
.ar-numerals small{flex-basis:100%;font-size:14px;text-align:center;margin-top:12px}
.ar-number-line{display:block;width:100%;height:auto;overflow:visible}
.ar-bar-diagram>div{display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:center;margin:20px 0}
.ar-bar-diagram strong{font:25px var(--serif)}
.ar-bar-row{display:grid;grid-template-columns:repeat(8,1fr)}
.ar-bar-row>i{height:35px;border:1px solid #4f4964;background:#aaa0d4}
.ar-bar-row>.is-gold{background:#ddc173;border-color:#7f6728}.ar-bar-row>.is-empty{background:transparent;border-color:transparent}
.ar-peer-roles{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.ar-peer-roles>p{margin:0;border:1px solid var(--ar-line);border-radius:12px;padding:15px;font-size:13px!important}
.ar-peer-roles strong,.ar-peer-roles span{display:block}.ar-peer-roles span{margin-top:8px}
.ar-support-note{padding:16px;border-left:3px solid #cab26b;background:#faf8f1;font-size:14px!important;margin-top:20px}
.ar-task-stage>[data-anatomy-prompt]{font-size:14px;line-height:1.75;margin:24px 0 0}
.ar-focus-question{font:400 20px/1.4 var(--serif);margin:18px 0 0}
.ar-observation-lens{font-size:12px!important;line-height:1.7!important;padding-top:16px;border-top:1px solid #e3e5e9;margin-top:20px!important;color:#626975}
.ar-task-stage[data-active-layer=observation] .ar-observation-lens{border-left:3px solid #7b6cbd;padding-left:15px}
.ar-response-workspace{margin-top:20px;border-top:1px solid #e3e5e9;padding-top:18px}
.ar-response-workspace>p{font-size:14px;line-height:1.7;margin:0 0 15px}
.ar-response-workspace details{padding:15px;background:#f6f7f9;border-radius:10px}
.ar-response-workspace details p{font-size:14px;line-height:1.7;margin:14px 0 0}
.ar-response-workspace :is(button,input){min-height:44px}
.ar-response-workspace .mini-button{padding:10px 14px;border:1px solid #bfc4ce;border-radius:10px;background:#fff;font-size:13px;line-height:1.45;text-align:left}
.ar-response-workspace .mini-button:disabled{opacity:.5}
.ar-response-workspace .form-grid{margin-bottom:17px}
.ar-task-feedback{margin:20px 0 0!important;padding:16px;border-left:3px solid #7b6cbd;background:#f3f1f9;font-size:14px!important;line-height:1.7!important}
.ar-task-feedback:empty{display:none}
.ar-layer-editor{padding:26px 3px;border-bottom:1px solid var(--ar-line);margin:0 0 24px}
.ar-layer-editor>h3{font:400 30px/1.15 var(--serif);margin:12px 0 16px}
.ar-layer-editor>p{font-size:14px;line-height:1.75;margin:0 0 20px}
.ar-layer-editor .field{margin-top:20px}
.ar-layer-editor .field>span,.ar-response-workspace .field>span{font-size:12px;font-weight:600;display:block;margin-bottom:8px}
.ar-layer-editor select,.ar-response-workspace input{width:100%;min-height:48px;background:#fff;border:1px solid #bcc3cf;border-radius:10px;padding:11px;font:14px var(--sans);color:#252a33}
.ar-quick-controls{gap:18px}
.ar-observation{padding:3px 3px 23px;border-bottom:1px solid var(--ar-line)}
.ar-observation>p{font-size:14px;line-height:1.75;margin:14px 0 18px}
.ar-evidence-choices{display:grid;gap:7px}
.ar-evidence-choices>label{display:flex;align-items:center;gap:12px;padding:12px;background:#fff;border:1px solid #dce0e7;border-radius:10px;min-height:48px;font-size:13px;line-height:1.6}
.ar-evidence-choices input{width:18px;height:18px;flex:0 0 auto;accent-color:#6251ba}
.ar-observation>.small{font-size:12px;line-height:1.7;color:var(--ar-muted);margin:17px 0 0}
.ar-change-log{padding:24px 3px 4px}
.ar-change-log p,.ar-change-log li{font-size:13px;line-height:1.75}
.ar-change-log ul{padding-left:20px;margin-top:15px}
.ar-anatomy-actions{padding-top:17px;gap:10px!important}
.ar-anatomy-actions>.mini-button{border:1px solid #bfc4ce;border-radius:10px;background:#fff;padding:11px 14px;min-height:44px;font-size:12px}
.ar-anatomy-lab>.small{font-size:12px;line-height:1.75;color:var(--ar-muted);margin-top:22px}

.ar-aisa-trace-toolbar{padding:22px 0 25px;border-bottom:1px solid var(--ar-line);margin-bottom:24px}
.ar-aisa-trace-toolbar>.field{display:block;max-width:100%;min-width:0}
.ar-aisa-trace-toolbar>.field>span{display:block;font-size:12px;font-weight:600;margin-bottom:9px}
.ar-aisa-trace-toolbar select{display:block;width:100%;max-width:100%;min-height:48px;font:13px var(--sans);color:#252a33;border:1px solid #bdc4cf;border-radius:10px;padding:11px;background:#fff}
.ar-aisa-trace-toolbar>.actions{margin:16px 0 0;gap:12px}
.ar-aisa-trace-toolbar>.small{margin:18px 0 0;font-size:13px;line-height:1.7;color:var(--ar-muted)}
.ex-aisa-lines [data-aisa-edge]{fill:none;stroke:#969caa;stroke-width:1.4;vector-effect:non-scaling-stroke;transition:stroke .18s ease,opacity .18s ease}
.ex-aisa-lines [data-aisa-edge].is-related{stroke:#6251ba;stroke-width:2.3}
.ex-aisa-lines [data-aisa-edge].is-muted{opacity:.28}
.ex-aisa-lines [data-aisa-edge].is-traced{stroke:#3f347c;stroke-width:3;stroke-dasharray:8 4;animation:ar-trace-relationship .7s linear 1}
.ex-aisa-node.is-connected:not(.is-active){border-color:#8d839f;background:#f5f3f8;color:#282332}
.ex-aisa-node.is-muted{opacity:1;color:#606773;border-color:#d4d8e0;background:#fff}
.ex-aisa-node.is-active{background:#51439b;border-color:#51439b;color:#fff}
.ar-aisa-connections{list-style:none;padding:0;margin:18px 0 25px}
.ar-aisa-connections>li{padding:15px 0;border-bottom:1px solid #dedfe6;font-size:13px;line-height:1.7}
.ar-aisa-connections>li>span{display:block;color:var(--ar-muted);margin-bottom:8px}
.ar-aisa-connections .mini-button{text-align:left;line-height:1.6;max-width:100%}
.ar-trace-link{display:block;margin-top:10px;border:0;border-bottom:1px solid #b8b0cd;background:transparent;padding:6px 0;font-size:12px;color:#44366e;min-height:36px}
.ar-aisa-reading-links{display:flex;flex-wrap:wrap;gap:12px 20px;margin:20px 0;font-size:12px;line-height:1.8}
.ar-aisa-actions{border-top:1px solid var(--ar-line);padding-top:24px;margin-top:24px;gap:10px 18px!important}
.ar-aisa-case{margin-top:24px}.ar-aisa-case>.actions{margin-top:16px}.ar-aisa-case [data-aisa-case-prompt]{border-left:3px solid #9c8fbd;padding-left:15px}
@keyframes ar-trace-relationship{from{stroke-dashoffset:24}to{stroke-dashoffset:0}}

.ar-reader-source-actions{border-top:1px solid #dedfe6;padding-top:20px;margin-top:20px!important;align-items:center}
.ar-reader-source-actions>.small{width:100%;margin:0;color:#676c76;font-size:12px!important;line-height:1.6}
body.inner-page main .reader-layout.is-source-open{display:grid;grid-template-columns:minmax(145px,.25fr) minmax(300px,.8fr) minmax(340px,1fr);gap:24px;max-width:1800px}
body.inner-page main .reader-layout.is-source-open>.reader-content{min-width:0;max-width:none}
.ar-reader-source-desk{position:sticky;top:110px;align-self:start;height:calc(100svh - 135px);max-height:1050px;min-height:500px;min-width:0;border:1px solid #cfd4de;border-radius:18px;background:#fff;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 9px 30px #161c2b0b}
.ar-source-header{padding:20px 20px 17px;border-bottom:1px solid #dfe3ea;display:flex;align-items:start;justify-content:space-between;gap:15px;background:#f5f6f8}
.ar-source-header h2{font:400 25px/1.15 var(--serif);letter-spacing:-.02em;margin:10px 0 0}
.ar-source-header .mini-button{padding:9px 10px;min-height:40px;font-size:11px;white-space:nowrap;border:1px solid #bbc2ce;border-radius:9px;background:#fff}
.ar-reader-source-desk>[data-reader-source-position]{font-size:11px;line-height:1.65;color:#626975;padding:14px 20px;margin:0;border-bottom:1px solid #e4e7ec}
.ar-source-record{padding:15px 20px;border-bottom:1px solid #dfe3ea}
.ar-source-record>p{font-size:12px;line-height:1.65;margin:12px 0 0}
.ar-source-record .actions{margin-top:15px;gap:10px 15px;font-size:11px;line-height:1.7}
.ar-source-record .text-link{font-size:11px}
.ar-source-page-controls{padding:12px 20px 8px;border-bottom:1px solid #e1e5eb;background:#fbfcfd}
.ar-source-page-controls form{display:flex;align-items:end;gap:12px}
.ar-source-page-controls .field{display:block;max-width:100px}
.ar-source-page-controls .field>span{font-size:11px;font-weight:600;display:block;margin-bottom:7px}
.ar-source-page-controls input{width:100%;min-height:40px;padding:8px;border:1px solid #b9c1cd;border-radius:8px;background:#fff;font-size:13px}
.ar-source-page-controls button{min-height:40px;font-size:12px}
.ar-source-page-controls>.small{font-size:10px;line-height:1.7;margin:8px 0}
.ar-source-document{min-height:180px;overflow:auto;flex:1;background:#eceff3}
.ar-source-document>p{font-size:11px;line-height:1.6;padding:12px 15px;margin:0;background:#f7f8fa}
.ar-source-document>.original-document{display:block;width:100%;height:max(400px,55svh);min-height:400px;border:0;margin:0;background:#fff}
.ar-reader-source-desk>[data-source-desk-status]{font-size:11px;line-height:1.6;margin:0;padding:10px 20px;border-top:1px solid #dfe3ea}
.ar-reader-source-desk>[data-source-desk-status]:empty{display:none}

@media(min-width:1800px){.ar-reader-source-desk{top:120px}.ar-source-header h2{font-size:30px}.ar-source-record>p{font-size:14px}.ar-source-record .text-link{font-size:12px}.ar-source-document>.original-document{height:65svh}}
@media(max-width:1250px){body.inner-page main .reader-layout.is-source-open{grid-template-columns:190px minmax(0,1fr)}.ar-reader-source-desk{position:fixed;z-index:100;right:20px;bottom:20px;top:auto;width:min(550px,56vw);height:82svh;max-height:none;box-shadow:0 14px 60px #1720322e}}
@media(max-width:900px){.ex-anatomy-workspace[data-anatomy]{grid-template-columns:185px minmax(0,1fr);gap:20px;padding:20px}[data-anatomy]>.ex-anatomy-layers button{font-size:12px;padding:10px}.ar-task-stage{padding:21px}.ar-counter-row{gap:5px}.ar-material-surface{padding:18px}.ar-quick-controls{grid-template-columns:1fr;gap:0}.ar-counter{font-size:10px}}
@media(max-width:760px){.ex-anatomy-workspace[data-anatomy]{grid-template-columns:1fr;padding:18px;gap:25px}[data-anatomy]>.ex-anatomy-layers{position:static;display:grid;grid-template-columns:1fr 1fr;gap:8px}[data-anatomy]>.ex-anatomy-layers button{min-height:48px;font-size:12px}.ar-objective{padding-top:0}.ar-objective h3{font-size:30px}.ar-task-stage{padding:18px}.ar-material-surface{padding:17px 12px;min-height:180px}.ar-counter-collection{grid-template-columns:17px 1fr;gap:8px}.ar-counter-collection>strong{font-size:23px}.ar-counter-row{gap:5px}.ar-counter{font-size:9px}.ar-peer-roles{grid-template-columns:1fr}.ar-learner-instruction>p{font-size:26px}.ar-environment-table .ar-material-surface{width:96%}.ar-stage-label{font-size:10px}.ar-observation>p,.ar-layer-editor>p{font-size:14px}.ar-quick-controls{grid-template-columns:1fr}.ar-anatomy-actions>.mini-button{font-size:11px;padding:10px 12px}.ar-aisa-trace-toolbar>.actions{gap:8px 13px}.ar-aisa-trace-toolbar select{font-size:12px}.ar-aisa-connections>li{font-size:13px}.ar-reader-source-desk{width:calc(100% - 20px);right:10px;bottom:10px;height:84svh;min-height:0;border-radius:17px}.ar-source-header{padding:16px}.ar-source-header h2{font-size:25px}.ar-source-record{padding:13px 16px}.ar-reader-source-desk>[data-reader-source-position]{padding:11px 16px}.ar-source-page-controls{padding:11px 16px}.ar-source-document>.original-document{min-height:320px;height:48svh}.ar-source-header .mini-button{min-height:44px}.ar-reader-source-actions{gap:12px}.ar-reader-source-actions .mini-button{line-height:1.6}body.inner-page main .reader-layout.is-source-open{display:block}}
@media(max-width:360px){[data-anatomy]>.ex-anatomy-layers{grid-template-columns:1fr}.ar-task-stage{padding:15px}.ar-counter-row{gap:3px}.ar-counter-collection{gap:6px}.ar-counter.is-paired{border-width:2px}.ar-material-surface{padding:15px 9px}.ar-stage-label{font-size:9px}.ar-objective h3{font-size:28px}}
@media(prefers-reduced-motion:reduce){.ar-material-surface,.ex-aisa-lines [data-aisa-edge]{transition:none}.ex-aisa-lines [data-aisa-edge].is-traced{animation:none}}
@media print{[data-anatomy]>.ex-anatomy-layers,.ar-layer-editor,.ar-response-workspace,.ar-evidence-choices,.ar-anatomy-actions,.ar-aisa-trace-toolbar,.ar-aisa-actions,.ar-trace-link,.ar-reader-source-desk,.ar-reader-source-actions{display:none!important}.ar-counter{min-height:20px}.ar-task-stage,.ar-material-surface{background:#fff;break-inside:avoid}.ex-anatomy-workspace[data-anatomy]{display:block;background:#fff}.ar-task-stage{border-color:#aaa}.ar-counter.is-violet{background:#b6b0ce!important;print-color-adjust:exact}.ar-counter.is-gold{background:#ddc990!important;print-color-adjust:exact}}