.sim-panel.sim-panel--lab{padding:0;border:0;background:transparent;border-radius:0;overflow:visible}.vlab-page{width:100%}.vlab{--vlab-bg:var(--atpl-navy-deep);--vlab-surface:color-mix(in srgb,var(--atpl-navy) 92%,var(--vlab-accent));--vlab-surface-raised:color-mix(in srgb,var(--atpl-navy) 80%,var(--vlab-accent));--vlab-line:color-mix(in srgb,var(--vlab-accent) 22%,transparent);--vlab-line-strong:color-mix(in srgb,var(--vlab-accent) 44%,transparent);--vlab-text:var(--atpl-on-primary);--vlab-muted:color-mix(in srgb,var(--atpl-on-primary) 62%,transparent);--vlab-stage-h:clamp(560px,68vh,780px);display:grid;grid-template-columns:218px minmax(0,1fr) 352px;gap:var(--sp-4);align-items:start;color:var(--vlab-text);font-family:var(--font-sans)}.vlab-eyebrow{display:inline-block;font-size:var(--fs-eyebrow);font-weight:700;letter-spacing:var(--tracking-widest);text-transform:uppercase;color:var(--vlab-muted)}.vlab-eyebrow,.vlab-mono{font-family:var(--font-mono)}.vlab-mono{font-variant-numeric:tabular-nums;letter-spacing:var(--tracking-wide)}.vlab-rail{display:flex;flex-direction:column;gap:var(--sp-3);min-height:0;height:calc(var(--vlab-stage-h) + 64px);padding:var(--sp-4);background:var(--vlab-surface);border:1px solid var(--vlab-line);border-radius:var(--r-2xl);overflow:hidden}.vlab-rail-head{display:flex;align-items:center;justify-content:space-between;padding:0 var(--sp-1) var(--sp-3);border-bottom:1px solid 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14%,transparent);border-color:var(--vlab-line-strong)}.vlab-rail-item.is-active:before{content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:2px;background:var(--vlab-accent);border-radius:var(--r-full)}.vlab-rail-num{font-family:var(--font-mono);font-size:var(--fs-caption);font-weight:700;color:var(--vlab-muted)}.vlab-rail-item.is-active .vlab-rail-num{color:var(--vlab-accent)}.vlab-rail-copy{display:flex;flex-direction:column;min-width:0}.vlab-rail-title{font-family:var(--font-headline);font-size:var(--fs-body-sm);font-weight:700;letter-spacing:var(--tracking-tight)}.vlab-rail-sub,.vlab-rail-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.vlab-rail-sub{margin-top:2px;font-size:var(--fs-eyebrow);font-weight:600;letter-spacing:var(--tracking-wide);color:var(--vlab-muted)}.vlab-rail-foot{display:flex;gap:var(--sp-2);align-items:flex-start;margin-top:auto;padding:var(--sp-3) var(--sp-1) 0;border-top:1px solid var(--vlab-line);color:var(--vlab-muted)}.vlab-rail-foot svg{flex:none;margin-top:2px;color:var(--vlab-accent)}.vlab-rail-foot p{margin:0;font-size:var(--fs-caption);line-height:var(--lh-normal)}.vlab-main{display:flex;flex-direction:column;gap:var(--sp-3);min-width:0}.vlab-stage{position:relative;height:var(--vlab-stage-h);background:radial-gradient(circle at 52% 36%,color-mix(in srgb,var(--vlab-accent) 13%,transparent),transparent 44%),radial-gradient(circle at 50% 100%,color-mix(in srgb,var(--accent-sky) 8%,transparent),transparent 55%),var(--vlab-bg);border:1px solid var(--vlab-line);border-radius:var(--r-2xl);overflow:hidden;isolation:isolate}.vlab-stage:after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(to bottom,color-mix(in srgb,var(--atpl-navy-deep) 55%,transparent),transparent 22%,transparent 72%,color-mix(in srgb,var(--atpl-navy-deep) 62%,transparent)),radial-gradient(circle at 50% 50%,transparent 52%,color-mix(in srgb,var(--atpl-navy-deep) 52%,transparent) 100%)}.vlab-canvas{position:absolute;inset:0;z-index:0;cursor:grab}.vlab-canvas:active{cursor:grabbing}.vlab-vignette{background:radial-gradient(circle at 50% 45%,transparent 55%,color-mix(in srgb,var(--atpl-navy-deep) 48%,transparent))}.vlab-scanlines,.vlab-vignette{position:absolute;inset:0;z-index:2;pointer-events:none}.vlab-scanlines{opacity:.32;background:repeating-linear-gradient(to bottom,transparent 0,transparent 3px,color-mix(in srgb,var(--atpl-on-primary) 2.5%,transparent) 4px)}.vlab-labels{position:absolute;inset:0;z-index:5;pointer-events:none}.vlab-label{position:absolute;top:0;left:0;display:inline-flex;align-items:center;gap:6px;padding:4px 9px;background:color-mix(in srgb,var(--atpl-navy-deep) 76%,transparent);border:1px solid var(--vlab-line-strong);border-radius:var(--r-full);color:var(--vlab-text);font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:700;letter-spacing:var(--tracking-wide);text-transform:uppercase;white-space:nowrap;cursor:pointer;pointer-events:auto;backdrop-filter:blur(10px);box-shadow:var(--sh-sm);transition:background var(--dur-fast) var(--ease-out),border-color var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out)}.vlab-label:focus-visible,.vlab-label:hover{background:color-mix(in srgb,var(--vlab-accent) 22%,var(--atpl-navy-deep));border-color:var(--vlab-accent);outline:none}.vlab-label.is-active{background:var(--vlab-accent);border-color:var(--vlab-accent);color:var(--atpl-navy-deep)}.vlab-label-dot{width:5px;height:5px;border-radius:var(--r-full);background:var(--vlab-accent);box-shadow:0 0 8px var(--vlab-accent);flex:none}.vlab-label.is-active .vlab-label-dot{background:var(--atpl-navy-deep);box-shadow:none}.vlab-stagebar{position:absolute;z-index:8;top:var(--sp-3);left:var(--sp-3);right:var(--sp-3);display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);pointer-events:none}.vlab-stage-id{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 10px;background:color-mix(in srgb,var(--atpl-navy-deep) 64%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-full);font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:700;letter-spacing:var(--tracking-widest);color:var(--vlab-muted);backdrop-filter:blur(10px)}.vlab-stage-id .vlab-mono{color:var(--vlab-accent)}.vlab-stage-sep{opacity:.35}.vlab-live-dot{width:6px;height:6px;border-radius:var(--r-full);background:var(--success);box-shadow:0 0 10px var(--success);animation:vlab-pulse 2.4s var(--ease-out) infinite}@keyframes vlab-pulse{0%,to{opacity:1}50%{opacity:.42}}.vlab-stage-actions{display:inline-flex;gap:4px;padding:3px;background:color-mix(in srgb,var(--atpl-navy-deep) 64%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-full);pointer-events:auto;backdrop-filter:blur(10px)}.vlab-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:26px;padding:0;background:transparent;border:0;border-radius:var(--r-full);color:var(--vlab-muted);cursor:pointer;transition:background var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out)}.vlab-icon-btn:focus-visible,.vlab-icon-btn:hover{background:color-mix(in srgb,var(--atpl-on-primary) 10%,transparent);color:var(--vlab-text);outline:none}.vlab-icon-btn.is-on{background:color-mix(in srgb,var(--vlab-accent) 20%,transparent);color:var(--vlab-accent)}.vlab-stage-title{position:absolute;z-index:7;top:60px;left:var(--sp-5);display:flex;flex-direction:column;gap:3px;pointer-events:none;text-shadow:0 2px 18px var(--atpl-navy-deep)}.vlab-stage-title strong{font-family:var(--font-headline);font-size:var(--fs-h3);font-weight:800;letter-spacing:var(--tracking-tighter);line-height:var(--lh-snug)}.vlab-status{position:absolute;z-index:7;top:60px;right:var(--sp-5);display:inline-flex;align-items:center;gap:7px;padding:6px 11px;background:color-mix(in srgb,var(--atpl-navy-deep) 68%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-full);font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:700;letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--vlab-text);backdrop-filter:blur(10px);pointer-events:none}.vlab-status-dot{width:6px;height:6px;border-radius:var(--r-full);background:var(--success);box-shadow:0 0 8px var(--success)}.vlab-status.is-warn .vlab-status-dot{background:var(--accent-amber);box-shadow:0 0 8px var(--accent-amber)}.vlab-status.is-bad .vlab-status-dot{background:var(--error-strong);box-shadow:0 0 8px var(--error-strong)}.vlab-bottom{position:absolute;z-index:7;left:var(--sp-4);right:var(--sp-4);bottom:var(--sp-10);display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-3);pointer-events:none}.vlab-view-pills{display:flex;gap:4px;padding:3px;background:color-mix(in srgb,var(--atpl-navy-deep) 64%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-full);pointer-events:auto;backdrop-filter:blur(10px)}.vlab-view-pill{padding:5px 10px;background:transparent;border:0;border-radius:var(--r-full);color:var(--vlab-muted);font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:700;letter-spacing:var(--tracking-wide);text-transform:uppercase;cursor:pointer;transition:background var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out)}.vlab-view-pill:focus-visible,.vlab-view-pill:hover{color:var(--vlab-text);background:color-mix(in srgb,var(--atpl-on-primary) 8%,transparent);outline:none}.vlab-view-pill.is-active{background:color-mix(in srgb,var(--vlab-accent) 18%,transparent);color:var(--vlab-accent)}.vlab-hud-metrics{display:flex;gap:6px;align-items:flex-end;flex-wrap:wrap;justify-content:flex-end}.vlab-chip{display:flex;flex-direction:column;gap:1px;padding:5px 9px;background:color-mix(in srgb,var(--atpl-navy-deep) 64%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-sm);backdrop-filter:blur(10px)}.vlab-chip span{font-family:var(--font-mono);font-size:var(--fs-eyebrow);letter-spacing:var(--tracking-wide);color:var(--vlab-muted)}.vlab-chip strong{font-family:var(--font-mono);font-size:var(--fs-caption);font-weight:700;color:var(--vlab-text)}.vlab-hint{position:absolute;z-index:7;right:var(--sp-4);bottom:var(--sp-3);display:inline-flex;align-items:center;gap:5px;font-family:var(--font-mono);font-size:var(--fs-eyebrow);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:color-mix(in srgb,var(--vlab-muted) 80%,transparent);pointer-events:none}.vlab-hint svg{color:var(--vlab-accent)}.vlab-overlay{position:absolute;inset:0;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--sp-2);padding:var(--sp-8);text-align:center;background:color-mix(in srgb,var(--atpl-navy-deep) 86%,transparent);backdrop-filter:blur(6px)}.vlab-overlay strong{font-family:var(--font-headline);font-size:var(--fs-h4);font-weight:800}.vlab-overlay p{max-width:380px;margin:0;font-size:var(--fs-body-sm);line-height:var(--lh-normal);color:var(--vlab-muted)}.vlab-overlay svg{color:var(--accent-amber)}.vlab-spinner{width:30px;height:30px;border:2px solid var(--vlab-line);border-top-color:var(--vlab-accent);border-radius:var(--r-full);animation:vlab-spin .9s linear infinite}@keyframes vlab-spin{to{transform:rotate(1turn)}}.vlab-underbar{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);padding:var(--sp-2) var(--sp-3);background:var(--vlab-surface);border:1px solid var(--vlab-line);border-radius:var(--r-lg)}.vlab-underbar-copy{display:flex;flex-direction:column;gap:1px;min-width:0}.vlab-underbar-hint{font-size:var(--fs-caption);color:var(--vlab-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.vlab-presets{display:flex;gap:4px;flex-wrap:wrap;justify-content:flex-end}.vlab-preset{display:inline-flex;align-items:center;gap:5px;padding:6px 10px;background:transparent;border:1px solid var(--vlab-line);border-radius:var(--r-full);color:var(--vlab-text);font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:700;letter-spacing:var(--tracking-wide);text-transform:uppercase;cursor:pointer;transition:border-color var(--dur-fast) var(--ease-out),background var(--dur-fast) var(--ease-out)}.vlab-preset svg{color:var(--vlab-accent)}.vlab-preset:focus-visible,.vlab-preset:hover{border-color:var(--vlab-accent);background:color-mix(in srgb,var(--vlab-accent) 12%,transparent);outline:none}.vlab-panel{display:flex;flex-direction:column;min-height:0;height:calc(var(--vlab-stage-h) + 64px);background:var(--vlab-surface);border:1px solid var(--vlab-line);border-radius:var(--r-2xl);overflow:hidden}.vlab-panel-head{padding:var(--sp-4);border-bottom:1px solid var(--vlab-line);background:color-mix(in srgb,var(--vlab-accent) 5%,transparent)}.vlab-panel-head h2{margin:6px 0 5px;color:var(--vlab-text);font-family:var(--font-headline);font-size:var(--fs-h4);font-weight:800;letter-spacing:var(--tracking-tighter);line-height:var(--lh-snug)}.vlab-panel-head p{margin:0;font-size:var(--fs-caption);line-height:var(--lh-normal);color:var(--vlab-muted)}.vlab-panel-body{flex:1;min-height:0;overflow-y:auto;padding:var(--sp-4);display:flex;flex-direction:column;gap:var(--sp-4);scrollbar-width:thin;scrollbar-color:var(--vlab-line-strong) transparent}.vlab-panel-body::-webkit-scrollbar{width:6px}.vlab-panel-body::-webkit-scrollbar-thumb{background:var(--vlab-line-strong);border-radius:var(--r-full)}.vlab-summary{margin:0;font-size:var(--fs-body-sm);line-height:var(--lh-relaxed);color:color-mix(in srgb,var(--vlab-text) 84%,transparent)}.vlab-idea{display:flex;gap:var(--sp-2);align-items:flex-start;padding:var(--sp-3);background:color-mix(in srgb,var(--vlab-accent) 10%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-md)}.vlab-idea svg{flex:none;margin-top:2px;color:var(--vlab-accent)}.vlab-idea p{margin:0;font-family:var(--font-headline);font-size:var(--fs-body-sm);font-weight:700;line-height:var(--lh-normal);letter-spacing:var(--tracking-tight)}.vlab-section-head{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-2);margin-bottom:var(--sp-2)}.vlab-section-head .vlab-mono{font-size:var(--fs-eyebrow);color:var(--vlab-accent)}.vlab-controls,.vlab-metrics,.vlab-quiz{display:block}.vlab-control-stack{gap:var(--sp-3)}.vlab-control-stack,.vlab-field{display:flex;flex-direction:column}.vlab-field{gap:6px}.vlab-field-label{font-size:var(--fs-caption);font-weight:600;color:var(--vlab-muted)}.vlab-slider{display:flex;flex-direction:column;gap:4px}.vlab-slider-head{display:flex;align-items:baseline;justify-content:space-between;gap:var(--sp-2);font-size:var(--fs-caption);font-weight:600;color:var(--vlab-muted)}.vlab-slider-head .vlab-mono{color:var(--vlab-text);font-size:var(--fs-caption)}.vlab-slider input[type=range]{width:100%;height:18px;margin:0;accent-color:var(--vlab-accent);cursor:pointer}.vlab-slider input[type=range]:focus-visible{outline:2px solid var(--vlab-accent);outline-offset:3px;border-radius:var(--r-full)}.vlab-seg{display:grid;grid-auto-flow:column;gap:2px;padding:2px;background:color-mix(in srgb,var(--atpl-navy-deep) 55%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-sm)}.vlab-seg button{padding:5px 0;background:transparent;border:0;border-radius:calc(var(--r-sm) - 2px);color:var(--vlab-muted);font-family:var(--font-mono);font-size:var(--fs-caption);font-weight:700;cursor:pointer}.vlab-seg button.is-active{background:var(--vlab-accent);color:var(--atpl-navy-deep)}.vlab-quiz-option:focus-visible,.vlab-seg button:focus-visible,.vlab-view-pill:focus-visible{outline:2px solid var(--vlab-accent);outline-offset:2px}.vlab-toggle-row{display:flex;gap:var(--sp-2);flex-wrap:wrap}.vlab-toggle{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;background:transparent;border:1px solid var(--vlab-line);border-radius:var(--r-full);color:var(--vlab-muted);font-size:var(--fs-caption);font-weight:600;cursor:pointer;transition:border-color var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out)}.vlab-toggle:focus-visible,.vlab-toggle:hover{border-color:var(--vlab-accent);color:var(--vlab-text);outline:none}.vlab-toggle-track{position:relative;width:24px;height:13px;border-radius:var(--r-full);background:color-mix(in srgb,var(--atpl-on-primary) 16%,transparent);transition:background var(--dur-fast) var(--ease-out);flex:none}.vlab-toggle-track span{position:absolute;top:2px;left:2px;width:9px;height:9px;border-radius:var(--r-full);background:var(--atpl-on-primary);transition:transform var(--dur-fast) var(--ease-out)}.vlab-toggle.is-on{color:var(--vlab-text);border-color:var(--vlab-line-strong)}.vlab-toggle.is-on .vlab-toggle-track{background:var(--vlab-accent)}.vlab-toggle.is-on .vlab-toggle-track span{transform:translateX(11px);background:var(--atpl-navy-deep)}.vlab-control-note{margin:0;font-size:var(--fs-caption);line-height:var(--lh-normal);color:var(--vlab-muted)}.vlab-pad-row{display:grid;grid-template-columns:116px minmax(0,1fr);gap:var(--sp-3);align-items:center}.vlab-pad{position:relative;width:116px;height:116px;border-radius:var(--r-full);background:radial-gradient(circle at 50% 45%,color-mix(in srgb,var(--vlab-accent) 15%,transparent),color-mix(in srgb,var(--atpl-navy-deep) 70%,transparent));border:1px solid var(--vlab-line-strong);box-shadow:inset 0 0 26px color-mix(in srgb,var(--atpl-navy-deep) 70%,transparent);cursor:crosshair;touch-action:none;flex:none}.vlab-pad:focus-visible{outline:2px solid var(--vlab-accent);outline-offset:3px}.vlab-pad-ring{position:absolute;inset:12px;border:1px dashed color-mix(in srgb,var(--vlab-accent) 32%,transparent);border-radius:var(--r-full)}.vlab-pad-cross:after,.vlab-pad-cross:before{content:"";position:absolute;background:color-mix(in srgb,var(--vlab-accent) 22%,transparent)}.vlab-pad-cross:before{left:50%;top:12px;bottom:12px;width:1px}.vlab-pad-cross:after{top:50%;left:12px;right:12px;height:1px}.vlab-pad-dot{width:13px;height:13px;border-radius:var(--r-full);background:var(--vlab-accent);box-shadow:0 0 14px var(--vlab-accent);transform:translate(-50%,-50%)}.vlab-pad-axis,.vlab-pad-dot{position:absolute;pointer-events:none}.vlab-pad-axis{font-family:var(--font-mono);font-size:var(--fs-eyebrow);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--vlab-muted)}.vlab-pad-axis-x{bottom:7px;left:50%;transform:translateX(-50%)}.vlab-pad-axis-y{top:50%;left:7px;transform:translateY(-50%) rotate(-90deg);transform-origin:left center}.vlab-pad-copy p{margin:4px 0 0;font-size:var(--fs-caption);line-height:var(--lh-normal);color:var(--vlab-muted)}.vlab-instrument{padding:var(--sp-3);background:color-mix(in srgb,var(--atpl-navy-deep) 62%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-md)}.vlab-instrument svg{display:block;width:100%;height:auto}.vlab-svg-frame{fill:color-mix(in srgb,var(--atpl-navy-deep) 80%,transparent);stroke:var(--vlab-line);stroke-width:1}.vlab-svg-line{stroke:color-mix(in srgb,var(--atpl-on-primary) 18%,transparent);stroke-width:1}.vlab-svg-tick{stroke:color-mix(in srgb,var(--atpl-on-primary) 28%,transparent);stroke-width:1}.vlab-svg-tick.is-major{stroke:color-mix(in srgb,var(--atpl-on-primary) 58%,transparent);stroke-width:2}.vlab-svg-label,.vlab-svg-text{fill:var(--vlab-muted);font-family:var(--font-mono);font-size:10px}.vlab-svg-label{letter-spacing:1px}.vlab-svg-needle{fill:var(--vlab-accent)}.vlab-svg-needle.is-warn{fill:var(--accent-amber)}.vlab-svg-flag{fill:color-mix(in srgb,var(--atpl-on-primary) 10%,transparent);stroke:var(--vlab-line-strong);stroke-width:1}.vlab-svg-flag.is-to{fill:color-mix(in srgb,var(--success) 22%,transparent);stroke:var(--success)}.vlab-svg-flag.is-from{fill:color-mix(in srgb,var(--accent-sky) 22%,transparent);stroke:var(--accent-sky)}.vlab-svg-flag.is-warn{fill:color-mix(in srgb,var(--accent-amber) 20%,transparent);stroke:var(--accent-amber)}.vlab-svg-flag-text{fill:var(--vlab-text);font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:1px}.vlab-svg-centre{fill:color-mix(in srgb,var(--atpl-on-primary) 70%,transparent)}.vlab-svg-diamond{fill:var(--vlab-accent);stroke:var(--atpl-navy-deep);stroke-width:1}.vlab-metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.vlab-metric{display:flex;flex-direction:column;gap:2px;padding:var(--sp-2) var(--sp-2) var(--sp-2);background:color-mix(in srgb,var(--atpl-navy-deep) 46%,transparent);border:1px solid 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svg{flex:none;margin-top:2px;color:var(--accent-sky)}.vlab-tip p{margin:0;font-size:var(--fs-caption);line-height:var(--lh-relaxed);color:color-mix(in srgb,var(--vlab-text) 80%,transparent)}.vlab-tip strong{color:var(--vlab-text)}.vlab-quiz-q{margin:0 0 var(--sp-2);font-family:var(--font-headline);font-size:var(--fs-body-sm);font-weight:700;line-height:var(--lh-normal)}.vlab-quiz-options{display:flex;flex-direction:column;gap:4px}.vlab-quiz-option{display:flex;align-items:center;gap:var(--sp-2);width:100%;padding:8px 10px;background:color-mix(in srgb,var(--atpl-navy-deep) 40%,transparent);border:1px solid var(--vlab-line);border-radius:var(--r-sm);color:var(--vlab-text);font-size:var(--fs-caption);line-height:var(--lh-snug);text-align:left;cursor:pointer;transition:border-color var(--dur-fast) var(--ease-out),background var(--dur-fast) var(--ease-out)}.vlab-quiz-option:focus-visible,.vlab-quiz-option:hover:not(:disabled){border-color:var(--vlab-accent);outline:none}.vlab-quiz-option:disabled{cursor:default}.vlab-quiz-letter{display:inline-flex;align-items:center;justify-content:center;width:19px;height:19px;border-radius:var(--r-full);background:color-mix(in srgb,var(--atpl-on-primary) 9%,transparent);font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:700;flex:none}.vlab-quiz-option svg{margin-left:auto;color:var(--success);flex:none}.vlab-quiz-option.is-correct{border-color:var(--success);background:color-mix(in srgb,var(--success) 14%,transparent)}.vlab-quiz-option.is-wrong{border-color:var(--error-strong);background:color-mix(in srgb,var(--error-strong) 12%,transparent)}.vlab-quiz-option.is-wrong .vlab-quiz-letter{background:var(--error-strong);color:var(--atpl-on-primary)}.vlab-explain{margin-top:var(--sp-2);padding:var(--sp-3);border-left:2px solid var(--vlab-accent);background:color-mix(in srgb,var(--vlab-accent) 7%,transparent);font-size:var(--fs-caption);line-height:var(--lh-relaxed);color:color-mix(in srgb,var(--vlab-text) 80%,transparent)}.vlab-explain strong{color:var(--vlab-text)}.vlab-disclaimer{margin:0;padding-top:var(--sp-2);border-top:1px solid var(--vlab-line);font-size:var(--fs-eyebrow);line-height:var(--lh-normal);color:color-mix(in srgb,var(--vlab-muted) 75%,transparent)}.vlab-hotspot-card{padding:var(--sp-3);background:color-mix(in srgb,var(--vlab-accent) 12%,transparent);border:1px solid var(--vlab-line-strong);border-radius:var(--r-md)}.vlab-hotspot-head{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-2)}.vlab-hotspot-card h3{margin:5px 0 4px;color:var(--vlab-text);font-family:var(--font-headline);font-size:var(--fs-body);font-weight:800;letter-spacing:var(--tracking-tight)}.vlab-hotspot-card p{margin:0;font-size:var(--fs-caption);line-height:var(--lh-relaxed);color:color-mix(in srgb,var(--vlab-text) 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(max-width:1040px){.vlab{--vlab-stage-h:62vh;grid-template-columns:minmax(0,1fr)}.vlab-rail{padding:var(--sp-3)}.vlab-rail-list{flex-direction:row;overflow-x:auto;overflow-y:hidden;padding-bottom:2px}.vlab-rail-item{width:auto;min-width:176px;flex:0 0 176px}.vlab-rail-foot{display:none}.vlab-stage{min-height:480px}.vlab-panel,.vlab-rail{height:auto}.vlab-panel-body{overflow:visible}.vlab-panel-head{padding:var(--sp-4)}}@media (max-width:720px){.vlab{--vlab-stage-h:56vh}.vlab-stage{min-height:400px}.vlab-stagebar{top:var(--sp-2);left:var(--sp-2);right:var(--sp-2)}.vlab-stage-id{height:26px;padding:0 8px}.vlab-stage-title{top:52px;left:var(--sp-4)}.vlab-stage-title strong{font-size:var(--fs-h4)}.vlab-status{top:52px;right:var(--sp-4);padding:5px 8px}.vlab-hint{display:none}.vlab-bottom{left:var(--sp-2);right:var(--sp-2);bottom:var(--sp-3);flex-direction:column;align-items:flex-start}.vlab-hud-metrics{justify-content:flex-start}.vlab-chip{padding:4px 7px}.vlab-underbar{flex-direction:column;align-items:flex-start}.vlab-presets{justify-content:flex-start}.vlab-pad-row{grid-template-columns:104px minmax(0,1fr)}.vlab-pad{width:104px;height:104px}.vlab-metric-v{font-size:var(--fs-h4)}}@media (prefers-reduced-motion:reduce){.vlab-live-dot,.vlab-spinner{animation:none}.vlab-icon-btn,.vlab-label,.vlab-preset,.vlab-rail-item,.vlab-toggle,.vlab-toggle-track span{transition:none}}