/* Shared-shell content only: no header, navigation, login or banner rendering. */
body.lab-shared-shell{--lab-primary:var(--brand-primary);--lab-bg:var(--brand-bg);--lab-tint:var(--brand-tint);--lab-line:var(--brand-line);--lab-ink:var(--brand-ink);--lab-muted:var(--brand-muted);--lab-surface:var(--brand-surface,#fff)}
body.lab-shared-shell #labContent{min-width:0;color:var(--lab-ink);font:15px/1.65 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}
body.lab-shared-shell #labContent :where(button,input,select){font:inherit;color:inherit}
body.lab-shared-shell #labContent :where(label){margin:0}
body.lab-shared-shell #labContent :where(a,a:hover,a:focus,a:active){text-decoration:none!important}
body.lab-shared-shell #labContent :where(button,a,input,select,summary):focus-visible{outline:2px solid var(--lab-primary);outline-offset:3px}
body.lab-shared-shell #labContent :where(h2,h3,h4,p){letter-spacing:normal}
body.lab-shared-shell #labContent .lab-panel{padding:0}
body.lab-shared-shell #labContent .lab-account{background:var(--lab-tint);border:1px solid var(--lab-line);padding:8px 15px;border-radius:22px;font-size:13px}
body.lab-shared-shell #labContent .lab-panel{background:var(--lab-surface);border:1px solid var(--lab-line);border-radius:24px;overflow:hidden}
body.lab-shared-shell #labContent .lab-toolbar{padding:23px 26px 19px;border-bottom:1px solid var(--lab-line)}
body.lab-shared-shell #labContent .lab-toolbar-top{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-bottom:15px}
body.lab-shared-shell #labContent .lab-toolbar h2{font-size:18px;margin:0}
body.lab-shared-shell #labContent .lab-toolbar h2 span{font-size:12px;font-weight:400;color:var(--lab-muted);margin-left:12px}
body.lab-shared-shell #labContent .lab-search{min-width:300px;display:flex;align-items:center;gap:10px;color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-search input{width:100%;border:1px solid var(--lab-line);border-radius:11px;padding:8px 12px;background:var(--lab-bg);color:var(--lab-ink)}
body.lab-shared-shell #labContent .lab-search input::placeholder{color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-scope-row{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
body.lab-shared-shell #labContent .lab-scope-row>span{font-size:11px;color:var(--lab-muted);margin-right:6px}
body.lab-shared-shell #labContent .lab-scope-row button{border:1px solid var(--lab-line);background:var(--lab-surface);padding:5px 12px;border-radius:18px;font-size:12px}
body.lab-shared-shell #labContent .lab-scope-row button[aria-pressed=true]{background:var(--lab-tint);border-color:var(--lab-primary);color:var(--lab-primary);font-weight:700}
body.lab-shared-shell #labContent .lab-scope-row small{margin-left:6px;opacity:.7}
body.lab-shared-shell #labContent .lab-layout{display:grid;grid-template-columns:225px minmax(0,1fr)}
body.lab-shared-shell #labContent .lab-guide{padding:22px 17px 25px;border-right:1px solid var(--lab-line);background:color-mix(in srgb,var(--lab-tint) 30%,var(--lab-surface))}
body.lab-shared-shell #labContent .lab-guide h3{font-size:12px;letter-spacing:1px;margin:0 8px 12px;color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-domain-list{display:grid;gap:7px}
body.lab-shared-shell #labContent .lab-domain-list button{border:1px solid transparent;text-align:left;padding:10px 12px;border-radius:12px;background:transparent;line-height:1.45}
body.lab-shared-shell #labContent .lab-domain-list button:hover{background:var(--lab-tint)}
body.lab-shared-shell #labContent .lab-domain-list button[aria-pressed=true]{border-color:var(--lab-line);background:var(--lab-tint);color:var(--lab-primary)}
body.lab-shared-shell #labContent .lab-domain-list strong{font-size:13px;font-weight:650;display:block}
body.lab-shared-shell #labContent .lab-domain-list small{font-size:10px;color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-topic-filter{margin:22px 8px 0}
body.lab-shared-shell #labContent .lab-topic-filter label{display:block;font-size:12px;font-weight:600;margin-bottom:8px}
body.lab-shared-shell #labContent .lab-topic-filter select{width:100%;padding:9px 7px;border:1px solid var(--lab-line);border-radius:8px;background:var(--lab-surface);color:var(--lab-ink);font-size:11px}
body.lab-shared-shell #labContent .lab-guide-note{font-size:11px;color:var(--lab-muted);margin:18px 8px 0;line-height:1.9}
body.lab-shared-shell #labContent .lab-content{padding:22px 24px 28px;min-width:0}
body.lab-shared-shell #labContent .lab-results-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:18px}
body.lab-shared-shell #labContent .lab-results-header h3{margin:0;font-size:16px}
body.lab-shared-shell #labContent .lab-results-header span{font-size:11px;color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}
body.lab-shared-shell #labContent .lab-card{position:relative;display:flex;flex-direction:column;min-width:0;border:1px solid var(--lab-line);border-radius:15px;background:var(--lab-surface);overflow:hidden}
body.lab-shared-shell #labContent .lab-card:hover{border-color:var(--lab-primary);box-shadow:0 8px 25px color-mix(in srgb,var(--lab-primary) 8%,transparent)}
body.lab-shared-shell #labContent .lab-card-art{height:125px;background:var(--lab-tint);display:grid;place-items:center;border-bottom:1px solid var(--lab-line)}
body.lab-shared-shell #labContent .lab-card-art img{height:112px;width:176px;max-width:100%;object-fit:contain}
body.lab-shared-shell #labContent .lab-card-content{padding:14px 15px 13px;display:flex;flex-direction:column;flex:1}
body.lab-shared-shell #labContent .lab-card h4{font-size:17px;letter-spacing:.5px;margin:0 0 4px}
body.lab-shared-shell #labContent .lab-card p{font-size:11px;line-height:1.6;color:var(--lab-muted);margin:0 0 12px;min-height:35px}
body.lab-shared-shell #labContent .lab-card-tags{display:flex;gap:5px;flex-wrap:wrap;color:var(--lab-primary);font-size:9px;margin:0 0 10px}
body.lab-shared-shell #labContent .lab-card-tags span{border-radius:4px;padding:1px 5px;background:var(--lab-tint)}
body.lab-shared-shell #labContent .lab-card-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:10px;margin-top:auto;color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-card-bottom b{font-size:13px;color:var(--lab-primary);font-weight:500}
body.lab-shared-shell #labContent .lab-empty{text-align:center;border:1px dashed var(--lab-line);border-radius:16px;padding:55px 30px;background:var(--lab-bg)}
body.lab-shared-shell #labContent .lab-empty h4{font-size:18px;margin:0 0 8px}
body.lab-shared-shell #labContent .lab-empty p{font-size:13px;color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-reset-filter{border:1px solid var(--lab-line);border-radius:8px;background:var(--lab-tint);padding:8px 16px}
body.lab-shared-shell #labContent .lab-status{font-size:11px;color:var(--lab-muted);margin:14px 5px}
body.lab-shared-shell #labContent .lab-status.is-error{color:var(--lab-ink);border:1px solid var(--lab-primary);border-radius:12px;padding:18px;background:var(--lab-tint)}
body.lab-shared-shell #labContent .lab-knowledge{margin-top:22px;border-top:1px solid var(--lab-line);padding-top:18px}
body.lab-shared-shell #labContent .lab-knowledge summary{cursor:pointer;font-size:12px;color:var(--lab-primary);font-weight:600}
body.lab-shared-shell #labContent .lab-knowledge-intro{font-size:11px;color:var(--lab-muted)}
body.lab-shared-shell #labContent .lab-node-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:12px 0}
body.lab-shared-shell #labContent .lab-node{display:block;border:1px solid var(--lab-line);padding:9px 11px;border-radius:9px;background:var(--lab-bg);font-size:11px}
body.lab-shared-shell #labContent .lab-node b{font-size:9px;color:var(--lab-primary);margin-right:6px}
body.lab-shared-shell #labContent .lab-node small{display:block;color:var(--lab-muted);margin-top:2px}
body.lab-shared-shell #labContent .lab-crumb{font-size:12px;color:var(--lab-muted);margin:25px 5px 18px;display:flex;gap:12px}
body.lab-shared-shell #labContent .lab-crumb a{color:var(--lab-primary)}
body.lab-shared-shell #labContent .lab-topic-hero{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:55px;padding:45px 55px}
body.lab-shared-shell #labContent .lab-topic-hero h1{font-size:40px;margin:8px 0 7px;line-height:1.3}
body.lab-shared-shell #labContent .lab-topic-subtitle{font-size:22px;color:var(--lab-muted);margin:0 0 22px}
body.lab-shared-shell #labContent .lab-topic-intro{font-size:14px;color:var(--lab-muted);max-width:580px;line-height:1.9}
body.lab-shared-shell #labContent .lab-topic-art{display:flex;align-items:center;justify-content:center;background:var(--lab-tint);border:1px solid var(--lab-line);border-radius:22px;min-height:260px}
body.lab-shared-shell #labContent .lab-topic-art img{width:290px;height:240px;object-fit:contain}
body.lab-shared-shell #labContent .lab-topic-tags{display:flex;gap:8px;margin:20px 0}
body.lab-shared-shell #labContent .lab-topic-tags span{padding:4px 10px;background:var(--lab-tint);border:1px solid var(--lab-line);border-radius:20px;color:var(--lab-primary);font-size:11px}
body.lab-shared-shell #labContent .lab-launch{padding:13px 24px;background:var(--lab-primary);color:white;border:1px solid var(--lab-primary);border-radius:12px;font-weight:600;margin-top:10px}
body.lab-shared-shell #labContent .lab-launch:disabled{cursor:wait;opacity:.6}
body.lab-shared-shell #labContent .lab-topic-content{padding:27px 55px 35px;border-top:1px solid var(--lab-line)}
body.lab-shared-shell #labContent .lab-topic-content h2{font-size:17px;margin:0 0 15px}
body.lab-shared-shell #labContent .lab-topic-knowledge{display:flex;gap:8px;flex-wrap:wrap}
body.lab-shared-shell #labContent .lab-topic-knowledge .lab-node{min-width:240px}
body.lab-shared-shell #labContent .lab-topic-content p{font-size:12px;color:var(--lab-muted);margin:13px 0 0}
body.lab-shared-shell #labContent .lab-topic-levels{display:grid;grid-template-columns:repeat(var(--lab-level-columns,5),minmax(0,1fr));gap:9px;margin:0 0 27px}
body.lab-shared-shell #labContent .lab-topic-levels>div{background:var(--lab-bg);padding:13px 15px;border:1px solid var(--lab-line);border-radius:11px}
body.lab-shared-shell #labContent .lab-topic-levels b{display:block;color:var(--lab-primary);font-size:10px;letter-spacing:2px}
body.lab-shared-shell #labContent .lab-topic-levels span{display:block;font-size:12px;margin-top:4px}
body.lab-shared-shell #labContent .lab-topic-levels small{font-size:10px;color:var(--lab-muted)}
@media(min-width:1550px){
body.lab-shared-shell #labContent .lab-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
body.lab-shared-shell #labContent .lab-card-art{height:145px}
body.lab-shared-shell #labContent .lab-card-art img{height:132px}
}
@media(max-width:1150px){
body.lab-shared-shell #labContent .lab-layout{grid-template-columns:205px minmax(0,1fr)}
body.lab-shared-shell #labContent .lab-content{padding:20px 17px}
body.lab-shared-shell #labContent .lab-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
body.lab-shared-shell #labContent .lab-topic-hero{padding:35px;gap:25px;grid-template-columns:minmax(0,1fr) 280px}
body.lab-shared-shell #labContent .lab-topic-content{padding:25px 35px}
body.lab-shared-shell #labContent .lab-topic-art img{width:250px}
}
body.lab-shared-shell #labContent .lab-access-panel{margin:15px 0 7px;padding:13px 16px;background:var(--lab-tint);border:1px solid var(--lab-line);border-radius:12px;color:var(--lab-ink);max-width:650px}
body.lab-shared-shell #labContent .lab-access-panel>p{font-size:13px;line-height:1.85;margin:0}
body.lab-shared-shell #labContent .lab-access-panel[data-mode=error]{border-color:var(--lab-primary)}
body.lab-shared-shell #labContent .lab-access-links{display:flex;align-items:center;gap:10px 18px;flex-wrap:wrap;margin-top:8px;font-size:12px}
body.lab-shared-shell #labContent .lab-access-links a{font-weight:600;color:var(--lab-primary)}
body.lab-shared-shell #labContent .lab-access-retry{border:1px solid var(--lab-primary);border-radius:7px;padding:4px 13px;color:var(--lab-primary);background:var(--lab-surface)}
body.lab-shared-shell #labContent .lab-access-retry:disabled{cursor:wait;opacity:.6}
body.lab-shared-shell #labContent .lab-access-index{max-width:none;margin:0 0 18px}
body.lab-shared-shell #labContent .lab-access-badge{align-self:flex-start;margin:0 0 10px;border-radius:5px;background:var(--lab-tint);color:var(--lab-primary);padding:3px 7px;font-size:11px;line-height:1.5}
body.lab-shared-shell #labContent .lab-card[data-access=locked] .lab-access-badge::before{content:"";display:inline-block;width:8px;height:7px;position:relative;top:1px;margin:0 6px 0 1px;border:1.5px solid currentColor;border-radius:2px;box-shadow:0 -4px 0 -1.5px var(--lab-tint),0 -4px 0 0 currentColor}
body.lab-shared-shell #labContent .lab-card[data-access=locked] .lab-card-bottom b{color:var(--lab-muted)}

body.lab-shared-shell #labContent .lab-topic-hero{padding:28px 32px}
body.lab-shared-shell #labContent .lab-topic-content{padding:24px 32px}
body.lab-shared-shell #labContent .lab-topic-subtitle{font-size:24px;margin:0 0 15px;color:var(--lab-ink)}
body.lab-shared-shell #labContent .lab-crumb{margin:0 0 18px}
body.lab-shared-shell #labContent .lab-knowledge summary{padding:0}
body.lab-shared-shell #labContent .lab-card-tags{font-size:11px}
body.lab-shared-shell #labContent .lab-card-bottom{font-size:11px}
body.lab-shared-shell #labContent .lab-domain-list small{font-size:11px}
body.lab-shared-shell #labContent .lab-topic-tags{flex-wrap:wrap}
@media(max-width:1280px){body.lab-shared-shell #labContent .lab-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
/* Remove inherited site element defaults, at lower specificity than every provider's #dialog styles.
   This prevents site header/footer/label spacing from changing the independent animations. */
body.lab-shared-shell>dialog[data-lab-topic] :where(header,footer,main){max-width:none;width:auto;margin:0;padding:0;border:0}
body.lab-shared-shell>dialog[data-lab-topic] :where(label){display:inline;margin:0;font:inherit;color:inherit}
body.lab-shared-shell>dialog[data-lab-topic] :where(input){width:auto;margin:0;padding:0;background:transparent;border:0;border-radius:0}
body.lab-shared-shell>dialog[data-lab-topic] :where(summary){padding:0}
body.lab-shared-shell>dialog[data-lab-topic] :where(li){margin:0}
body.lab-shared-shell>dialog[data-lab-topic] :where(h1,h2,h3,h4){letter-spacing:normal}
/* Lab-owned surroundings only. SVG, court, grass, water, tokens, and mathematical meaning colors are not recolored. */
body.lab-shared-shell>dialog[data-lab-topic]{--ink:var(--lab-ink);--muted:var(--lab-muted);--line:var(--lab-line);color:var(--lab-ink)!important;background:var(--lab-surface)!important;border-color:var(--lab-line)!important}
body.lab-shared-shell>dialog[data-lab-topic]::backdrop{background:color-mix(in srgb,var(--lab-ink) 58%,transparent)!important}
body.lab-shared-shell dialog[data-lab-topic] :is(header,footer,aside,[class$="-notebook"],[class$="-proof"]){color:var(--lab-ink)!important;background:var(--lab-surface)!important;border-color:var(--lab-line)!important}
body.lab-shared-shell dialog[data-lab-topic] [class$="-question"],body.lab-shared-shell dialog[data-lab-topic] [class$="-hint"],body.lab-shared-shell dialog[data-lab-topic] [class$="-solution"],body.lab-shared-shell dialog[data-lab-topic] [class$="-note"]{color:var(--lab-ink)!important;background:var(--lab-tint)!important;border-color:var(--lab-line)!important}
body.lab-shared-shell dialog[data-lab-topic] :is(h2,h3),body.lab-shared-shell dialog[data-lab-topic] :is([class$="-question"],[class$="-hint"],[class$="-solution"])>p{color:var(--lab-ink)!important}
body.lab-shared-shell dialog[data-lab-topic] :is([class$="-eyebrow"],[class$="-footnote"],[class$="-silent"],[class$="-header-actions"],footer label){color:var(--lab-muted)!important}
body.lab-shared-shell dialog[data-lab-topic] :is(header,aside,[class$="-notebook"],[class$="-proof"])>p,body.lab-shared-shell dialog[data-lab-topic] h2>span{color:var(--lab-muted)!important}
body.lab-shared-shell dialog[data-lab-topic] button,body.lab-shared-shell dialog[data-lab-topic] select{color:var(--lab-ink)!important;background:var(--lab-surface)!important;border-color:var(--lab-line)!important}
body.lab-shared-shell dialog[data-lab-topic] button:hover{background:var(--lab-tint)!important}
body.lab-shared-shell dialog[data-lab-topic] button[aria-current=true],body.lab-shared-shell dialog[data-lab-topic] button[aria-pressed=true],body.lab-shared-shell dialog[data-lab-topic] button[class$="-play"]{background:var(--lab-primary)!important;color:#fff!important;border-color:var(--lab-primary)!important}
body.lab-shared-shell dialog[data-lab-topic] :is(button,select,input,summary,a):focus-visible{outline-color:var(--lab-primary)!important}
body.lab-shared-shell dialog[data-lab-topic] input[type=range]{accent-color:var(--lab-primary)!important}
body.lab-shared-shell dialog[data-lab-topic] a,body.lab-shared-shell dialog[data-lab-topic] a:is(:hover,:focus,:active){text-decoration:none!important}

body.lab-shared-shell #labContent .lab-variant{display:flex;align-items:center;gap:12px;margin:18px 0 10px;font-size:13px}
body.lab-shared-shell #labContent .lab-variant select{max-width:100%;padding:8px 12px;border:1px solid var(--lab-line);border-radius:9px;background:var(--lab-surface)}
body.lab-shared-shell>dialog[data-lab-topic][aria-busy=true]{cursor:progress}
body.lab-shared-shell>dialog[data-lab-topic][aria-busy=true] button[class$="-close"]{cursor:pointer}