/* Task workspace. Loaded last; owns layout without altering canvas rendering. */
:root{--space-half:4px;--reading:14px}
.topbar{height:88px;padding:16px 24px;gap:24px;justify-content:flex-start}
.topbar .brand{gap:20px}.topbar .brand-product{padding-left:20px;font-size:16px}
.topmeta{margin-left:auto;order:4}.topmeta .badge{display:none}
.build-version,.mobile-layout .topbar .build-version{font-size:12px}
.activity-nav{display:flex;align-items:center;gap:4px}
.activity-nav button{border-radius:8px;border-color:transparent;background:transparent;font-size:14px;padding:8px 16px;white-space:nowrap}
.activity-nav [aria-current=page]{background:var(--selected);color:var(--accent)}
.transport{display:flex;align-items:center;gap:8px;margin-left:auto}
.transport>button{background:transparent;border-color:transparent;font-size:14px;white-space:nowrap}
.transport>button:hover{background:var(--surface)}
.lab-menu{position:relative;font-size:14px}
.lab-menu>summary{list-style:none;cursor:pointer;min-height:44px;display:flex;align-items:center;padding:8px 12px;border-radius:8px}
.lab-menu>summary::-webkit-details-marker{display:none}
.lab-menu>summary:hover,.lab-menu[open]>summary{background:var(--surface)}
.lab-menu-items{position:absolute;right:0;top:calc(100% + 8px);z-index:20;min-width:210px;padding:8px;background:var(--panel);border:1px solid var(--input-edge);border-radius:12px;box-shadow:0 8px 24px #0006}
.lab-menu-items button{display:block;width:100%;text-align:left;border:0;background:transparent;border-radius:8px;font-size:14px}
main{padding:12px 24px 0}.mobile-nav{display:none}
.workspace,.us-expanded .workspace{grid-template-columns:minmax(0,1fr) minmax(0,1fr) 320px;gap:8px 16px;align-items:start}
.workspace>.anatomy{grid-area:1/1}.workspace>.ultrasound{grid-area:1/2}
.workspace>.ecg-panel{grid-area:2/1/3/3}
.workspace>.inspector{grid-area:1/3/3/4;position:sticky;top:12px;height:calc(100svh - 120px);display:flex;flex-direction:column;min-width:0;overflow:hidden}
.inspector-tabs{display:flex;align-items:center;gap:4px;padding:8px;border-bottom:1px solid var(--edge);flex:none}
.inspector-tabs button{border-radius:8px;background:transparent;border-color:transparent;min-height:44px;font-size:14px;padding:8px 12px}
.inspector-tabs button[aria-pressed=true]{background:var(--selected);color:var(--accent)}
#close-structures{display:none}#inspector-content{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--input-edge) transparent}
#inspector .controls{position:static;max-height:none;overflow:visible;border:0;border-radius:0}
#inspector .controls>.panelhead{display:none}
#inspector fieldset{display:block!important}
#inspector #learning-panel{padding:16px;margin:0;border:0;border-radius:0;max-height:none;overflow:visible;min-height:0}
.anatomy .panelhead,.ultrasound .panelhead{min-height:52px;padding:4px 12px}
.anatomy .panelhead h2,.ultrasound .panelhead h2{font-size:14px}
.panelhead h2 span{font-size:14px}.panel-actions button{font-size:14px}
.panel-actions button.icon-only{font-size:0;padding:0}
.viewport,.learning-open .anatomy .viewport,.us-expanded .ultrasound .viewport{height:clamp(300px,calc(100svh - 350px),800px);min-height:0;max-height:none}
.us-expanded .workspace{grid-template-columns:minmax(0,1fr) 320px}
.us-expanded .workspace>.ultrasound{grid-area:1/1}
.us-expanded .workspace>.ecg-panel{grid-area:2/1}
.us-expanded .workspace>.inspector{grid-area:1/2/3/3}
.ecg-panel .panelhead{min-height:36px;padding:6px 12px}.ecg-status{padding:6px 12px;min-height:32px}
.ecg-panel canvas,.mobile-layout .ecg-panel canvas{height:150px}
.scanmeta,.scanfooter{font-size:12px;left:12px;right:12px}.scanfooter{bottom:12px;line-height:1.5}
.zoom-controls{bottom:44px;right:12px;gap:8px}.zoom-controls button{background:#18191de8}
.viewhint{font-size:12px;bottom:12px}.quiet-button{border-color:transparent;background:transparent;color:var(--accent);font-size:14px}
.control-section{padding:16px}.control-section h3{font-size:14px;font-weight:600;margin:0 0 8px;color:var(--text)}
.control-group>summary{min-height:48px;padding:12px 16px}.range-row{margin:12px 0 0}
.range-row label{align-items:center;flex-wrap:nowrap;font-size:14px;gap:6px}
.range-row.precision-row{display:grid;grid-template-columns:minmax(0,1fr) 70px auto;align-items:center;gap:0 6px}
.precision-row>label{grid-column:1}.precision-row>input[type=range]{grid-column:1/-1}
.range-row .precise-value{margin-left:auto;width:70px;min-width:0;min-height:44px;border:1px solid var(--input-edge);border-radius:8px;padding:6px;background:var(--surface);color:var(--text);font:13px var(--font-mono)}
.range-row .value-unit{font:12px var(--font-mono);color:var(--muted);min-width:20px}
.range-row input[type=range]{height:36px}.check-row,.context-options label{min-height:44px;font-size:14px}
.structure-search-label{font-size:14px}.structure-scope{display:flex;align-items:center;gap:12px;margin:12px 0;font-size:14px}
.structure-scope select{flex:1}.catalogue-filters>summary,.us-options>summary,.scan-catalogue>summary{min-height:44px;cursor:pointer;color:var(--muted);padding:10px 0;font-size:14px}
.learning-filters{grid-template-columns:1fr;gap:8px;margin:8px 0}
.structure-results{grid-template-columns:1fr;max-height:none;overflow:visible;padding:2px;gap:4px}
.structure-results button{background:transparent;border-color:transparent;border-radius:8px;min-height:44px;padding:10px 8px;font-size:14px}
.structure-group-title{font-size:12px!important;color:var(--muted)!important;margin:12px 8px 4px!important;font-weight:600!important;grid-column:1/-1}
.structure-card{margin:12px 0 16px;padding:12px}.structure-card h3{font-size:18px}.structure-card p{font-size:14px;line-height:1.5}
.structure-actions{display:grid;grid-template-columns:1fr 1fr;gap:4px}.structure-actions button{border-radius:8px;border-color:transparent;background:transparent;font-size:13px;padding:8px}
.structure-actions [data-icon]::before{width:16px;height:16px;margin-right:4px}
.learning-help{font-size:13px!important}.learning-panel label{color:var(--muted)}
#us-learning-controls{padding:0;margin:0;border:0}.us-learning-modes button{font-size:13px;padding:8px}
.scan-catalogue .scan-structures{padding:4px 0;margin:0}.scan-structures-heading{display:block}.scan-structures-heading h3{display:none}
.scan-structure-list{max-height:200px}.us-learning-options{gap:4px 8px}.us-learning-options label{font-size:14px}
.annotation-notice{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:4px 12px;background:var(--selected);font-size:13px;min-height:44px}
.annotation-notice button{border-color:transparent;background:transparent;color:var(--accent);font-size:13px;padding:6px 8px;white-space:nowrap}
.adjustment-dock{padding:8px 12px}.dock-heading{display:flex;align-items:center;gap:8px;font-size:14px}
.dock-heading select{flex:1;width:auto;min-height:44px;font-size:16px;padding:6px 8px}
.dock-heading button{background:transparent;border-color:transparent;padding:6px 8px;font-size:14px}
.dock-control{display:flex;align-items:center;gap:8px;margin:4px 0}
.dock-control button{width:44px;min-width:44px;padding:0;border:0;background:transparent;font-size:22px}
#dock-range{flex:1;min-width:36px;width:auto;margin:0;height:44px}
#dock-value{width:64px;min-width:0;min-height:44px;background:var(--surface);color:var(--text);border:1px solid var(--input-edge);border-radius:8px;padding:4px;font:16px var(--font-mono)}
#dock-unit{font:12px var(--font-mono)}.dock-footer{display:flex;align-items:center;justify-content:space-between;gap:8px}
.dock-footer button{font-size:14px;min-height:44px;background:transparent;border-color:transparent;padding:6px 8px}
.dock-footer button[aria-pressed=true]{background:var(--selected);color:var(--accent)}
.reset-notice{position:fixed;z-index:8;bottom:16px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:16px;padding:8px 16px;max-width:calc(100vw - 24px);background:var(--panel);border:1px solid var(--input-edge);border-radius:12px;font-size:14px;box-shadow:0 4px 20px #0006}
.reset-notice button{background:var(--selected);color:var(--accent);border-color:transparent}
#help-dialog{font-size:16px;line-height:1.6}#help-dialog li{padding:8px 0}#help-dialog ol{padding-left:24px}
#help-dialog p{color:var(--muted)}.controls-dialog .controls{max-height:none;overflow:visible}.controls-dialog .precise-value{font-size:16px}
footer{font-size:12px;padding:12px 0}
/* Phone tools take a place in the layout, leaving the image visible above them. */
.mobile-layout .topbar{display:grid;grid-template-columns:minmax(0,1fr) auto;padding:16px 12px 8px;gap:12px 8px;height:auto;min-height:0}
.mobile-layout .brand{grid-area:1/1;gap:12px}.mobile-layout .brand-product{font-size:14px;padding-left:12px}
.mobile-layout .topmeta{grid-area:1/2;margin:0}.mobile-layout .topbar .build-version{font-size:11px;max-width:80px}
.mobile-layout .activity-nav{grid-area:2/1}.mobile-layout .activity-nav button{font-size:14px;min-height:44px;padding:8px 12px}
.mobile-layout .transport{grid-area:2/2;gap:0;margin:0}.mobile-layout .transport>button{font-size:14px;padding:8px}
.mobile-layout .transport>button::before{width:16px;height:16px;margin-right:4px}.mobile-layout .lab-menu>summary{padding:8px;font-size:14px}
.mobile-layout main{padding:8px 12px 0}.mobile-layout .mobile-nav{display:flex;position:static;gap:8px;padding:0 0 8px;background:transparent}
.mobile-layout .mobile-view-switch{display:flex;flex:1;min-width:0;padding:0;gap:0;border-radius:8px;background:var(--panel)}
.mobile-layout .mobile-view-switch button{flex:1;min-width:0;padding:8px 6px;font-size:13px;min-height:44px;border:0;border-radius:8px}
.mobile-layout .workspace-tools{display:flex;gap:4px}.workspace-tools button{border:0;border-radius:8px;font-size:14px;padding:8px;background:var(--panel)}
#mobile-structures{display:none}
.mobile-layout .workspace,.mobile-layout.us-expanded .workspace{grid-template-columns:minmax(0,1fr);gap:8px}
.mobile-layout .workspace>.anatomy,.mobile-layout .workspace>.ultrasound{grid-area:1/1}
.mobile-layout .workspace>.ecg-panel{grid-area:3/1}
.mobile-layout .workspace>.adjustment-dock,.mobile-layout .workspace>.inspector{grid-area:2/1;position:static}
.mobile-layout .workspace>.inspector{height:300px;max-height:44svh}
.mobile-layout .inspector-tabs{padding:4px 8px}.mobile-layout #close-structures{display:block;margin-left:auto}
.mobile-layout #scan-tools{display:none}.mobile-layout #learn-toggle{font-size:14px}
.mobile-layout .inspector-tabs #learn-toggle{pointer-events:none}
.mobile-layout .anatomy .panelhead,.mobile-layout .ultrasound .panelhead{padding:4px 8px;min-height:52px;flex-wrap:nowrap;gap:0}
.mobile-layout .anatomy .panelhead h2,.mobile-layout .ultrasound .panelhead h2{flex:1;font-size:14px}
.mobile-layout .panelhead h2 span{font-size:13px}.mobile-layout .panel-actions button{font-size:13px;padding:8px}
.mobile-layout .panel-actions{flex-wrap:nowrap}.mobile-layout #freeze{font-size:13px;min-width:0;width:auto;padding:8px}
.mobile-layout .viewport,.mobile-layout.learning-open .anatomy .viewport{height:clamp(300px,calc(100svh - 416px),680px);min-height:0;max-height:none}
.mobile-layout.adjustments-open .viewport,.mobile-layout.adjustments-open.learning-open .anatomy .viewport{height:clamp(240px,calc(100svh - 570px),540px)}
.mobile-layout.structures-docked .viewport,.mobile-layout.structures-docked.learning-open .anatomy .viewport{height:clamp(220px,calc(100svh - 590px),480px)}
.mobile-layout .zoom-controls{bottom:36px;right:8px}.mobile-layout .scanfooter{font-size:10px;left:8px;right:8px}
.mobile-layout #open-controls{width:auto;padding:6px 8px;font-size:14px;border-color:transparent;background:transparent}
.mobile-layout .compare-layout{display:block}
.mobile-layout.compare-layout .workspace{grid-template-columns:repeat(2,minmax(0,1fr))}
.mobile-layout.compare-layout .workspace>.anatomy{grid-area:1/1}.mobile-layout.compare-layout .workspace>.ultrasound{grid-area:1/2}
.mobile-layout.compare-layout .workspace>.ecg-panel{grid-area:3/1/4/3}
.mobile-layout.compare-layout .workspace>.adjustment-dock,.mobile-layout.compare-layout .workspace>.inspector{grid-area:2/1/3/3}
.mobile-layout.compare-layout .viewport,.mobile-layout.compare-layout .anatomy .viewport{height:clamp(280px,48svh,540px)}
.mobile-layout.image-focus .topbar{display:none}.mobile-layout.image-focus .viewport{height:clamp(300px,calc(100svh - 300px),900px)}
.mobile-layout.image-focus.adjustments-open .viewport{height:clamp(240px,calc(100svh - 465px),680px)}
.mobile-layout.image-focus.structures-docked .viewport{height:clamp(220px,calc(100svh - 540px),600px)}
@media(max-width:639px){
 .mobile-layout.compare-layout .workspace{grid-template-columns:minmax(0,1fr)}
 .mobile-layout.compare-layout .workspace>.ultrasound{grid-area:1/1}.mobile-layout.compare-layout .workspace>.anatomy{grid-area:2/1}
 .mobile-layout.compare-layout .workspace>.adjustment-dock,.mobile-layout.compare-layout .workspace>.inspector{grid-area:3/1}
 .mobile-layout.compare-layout .workspace>.ecg-panel{grid-area:4/1}
 .mobile-layout.compare-layout .viewport,.mobile-layout.compare-layout .anatomy .viewport{height:clamp(280px,40svh,480px)}
}
@media(max-width:350px){.mobile-layout .brand-product{display:none}.mobile-layout .mobile-view-switch button{font-size:12px}.mobile-layout .transport>button{font-size:13px;padding:8px 4px}}
@media(max-height:500px) and (pointer:coarse){.mobile-layout .topbar{grid-template-columns:auto auto 1fr auto;gap:8px;padding:8px 12px}.mobile-layout .brand{grid-area:1/1}.mobile-layout .brand-product{display:none}.mobile-layout .activity-nav{grid-area:1/2}.mobile-layout .transport{grid-area:1/3;justify-self:end}.mobile-layout .topmeta{grid-area:1/4}.mobile-layout .viewport,.mobile-layout.learning-open .anatomy .viewport{height:280px}}
/* Quiz: readable choices and one fixed action; ending a round is separate. */
#quiz-model #reset-camera{display:none}
#quiz-stop{margin-left:auto;border-color:var(--edge)!important;border-radius:8px!important;padding:6px 10px!important}
.quiz-secondary-actions{justify-content:flex-start}
#quiz-options button{font-size:15px;line-height:1.4}.quiz-option-status{font-size:12px}
#quiz-feedback{font-size:14px;line-height:1.5}.quiz-progress-row{font-size:12px}
#quiz-instruction{font-size:14px}.quiz-actions{gap:4px}
@media(max-width:700px){
 #quiz-dialog{border-radius:0}.quiz-header{padding:6px 12px;gap:8px}.quiz-header .build-version{font-size:10px}
 .quiz-workspace{grid-template-rows:minmax(160px,1fr) minmax(0,min(470px,64dvh))}
 #quiz-controls{padding:12px 12px max(8px,env(safe-area-inset-bottom))}
 #quiz-question{font-size:19px}.quiz-progress-row{font-size:12px}
 #quiz-instruction{font-size:13px}.quiz-letter{display:none}
 #quiz-options button{font-size:14px;min-height:58px;padding:8px;line-height:1.4}
 #quiz-feedback,#quiz-feedback[data-tone=wrong]{display:block;font-size:13px;margin-top:8px;padding:8px}
 #quiz-feedback:empty{display:none}
 #quiz-dialog .quiz-secondary{font-size:13px}
 #quiz-model .zoom-controls{bottom:36px}
}
@media(max-height:520px) and (min-width:600px){.quiz-workspace{grid-template-columns:minmax(0,1fr) minmax(350px,48%);grid-template-rows:minmax(0,1fr)}#quiz-options button{font-size:14px}.quiz-letter{display:none}#quiz-instruction{display:none}.quiz-progress-row{font-size:12px}}