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var(--lab-border-strong);border-radius:var(--lab-r-sm);background:var(--lab-surface)}.lab-scene-studio-preview{gap:var(--lab-sp-6);min-width:0;padding:var(--lab-sp-10);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-sunken);grid-template-rows:auto minmax(9.5rem,1fr) auto;justify-items:center;display:grid}.lab-scene-studio-preview-stage{place-items:center;width:100%;min-height:9.5rem;display:grid;overflow:hidden}.lab-scene-studio-preview-note{color:var(--lab-muted);font-size:var(--lab-t-eyebrow)}@media (max-width:42rem){.lab-scene-studio{grid-template-columns:minmax(0,1fr)}.lab-scene-studio-preview{grid-template-rows:auto 8.5rem auto}.lab-scene-studio-preview-stage{min-height:8.5rem}}@media (max-width:30rem){.lab-scene-studio-fields,.lab-scene-studio-choices{grid-template-columns:minmax(0,1fr)}.lab-scene-studio-choice{align-items:baseline;gap:var(--lab-sp-6);grid-template-columns:auto 1fr}}@keyframes tree-edge-flow{to{stroke-dashoffset:-14px}}@keyframes tree-node-pulse{0%{opacity:1;transform:scale(.8)}to{opacity:0;transform:scale(1.35)}}@keyframes tree-output-land{0%{opacity:0;transform:translateY(-.5rem)scale(.8)}}@container lab-activity (max-width:42.5rem){.tree-scene{min-height:17rem}.tree-scene svg{height:17rem}}.lab-sr-only{clip-path:inset(50%);white-space:nowrap;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.lab-eyebrow,.lab-challenge-h,.lab-objectives-h,.lab-solution-h,.lab-field-label{font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;color:var(--lab-muted);line-height:var(--lab-lh-title)}.lab-option,.lab-choice{justify-content:flex-start;align-items:center;gap:var(--lab-sp-6);min-height:var(--lab-target);padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm);border:1px solid var(--lab-border);background:var(--lab-surface);color:var(--lab-fg);box-shadow:var(--lab-elevation-control);font-size:var(--lab-t-body);font-weight:var(--lab-w-medium);font-variant-numeric:tabular-nums;cursor:pointer;transition:border-color var(--lab-dur-fast), background var(--lab-dur-fast), color var(--lab-dur-fast), box-shadow var(--lab-dur-fast), transform var(--lab-dur-fast);display:inline-flex}@media (hover:hover) and (pointer:fine){.lab-option:hover:not(:disabled),.lab-choice:hover:not(:disabled){border-color:var(--lab-accent-edge);background:var(--lab-accent-faint);box-shadow:var(--lab-elevation-raised);transform:translateY(-1px)}}.lab-option:active:not(:disabled),.lab-choice:active:not(:disabled){box-shadow:var(--lab-elevation-pressed);transform:translateY(1px)}.lab-btn{min-block-size:var(--lab-target-compact);padding-inline:var(--lab-sp-12);border-radius:var(--lab-r-sm);font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);border:1px solid var(--lab-accent);background:var(--lab-accent);color:var(--lab-accent-fg);box-shadow:var(--lab-elevation-control);cursor:pointer;transition:background-color var(--lab-dur-fast) var(--lab-ease), border-color var(--lab-dur-fast) var(--lab-ease), box-shadow var(--lab-dur-fast) var(--lab-ease), transform var(--lab-dur-fast) var(--lab-ease)}.lab-btn.lab-btn-ghost{border-color:var(--lab-border);color:var(--lab-fg);box-shadow:none;background:0 0}@media (hover:hover) and (pointer:fine){.lab-btn:hover:not(:disabled){border-color:var(--lab-accent);background:var(--lab-accent)}@supports (color:color-mix(in lab, red, red)){.lab-btn:hover:not(:disabled){background:color-mix(in oklab, var(--lab-accent) 88%, var(--lab-fg))}}.lab-btn:hover:not(:disabled){color:var(--lab-accent-fg);box-shadow:var(--lab-elevation-raised);transform:translateY(-1px)}.lab-btn.lab-btn-ghost:hover:not(:disabled){border-color:var(--lab-border-strong);background:var(--lab-fg)}@supports (color:color-mix(in lab, red, red)){.lab-btn.lab-btn-ghost:hover:not(:disabled){background:color-mix(in oklab, var(--lab-fg) 5%, transparent)}}.lab-btn.lab-btn-ghost:hover:not(:disabled){color:var(--lab-fg);box-shadow:var(--lab-elevation-control)}}.lab-btn:active:not(:disabled){box-shadow:var(--lab-elevation-pressed);transform:translateY(1px)}.lab-option:disabled,.lab-choice:disabled{box-shadow:none;cursor:not-allowed;opacity:.48;transform:none}.lab-btn:disabled,.lab-btn.lab-btn-ghost:disabled{border-color:var(--lab-border);background:var(--lab-disabled-bg);color:var(--lab-disabled-fg);box-shadow:none;cursor:not-allowed;opacity:1;pointer-events:auto;transform:none}.lab-btn.lab-btn-ghost:disabled{background:0 0}.lab-option[data-picked],.lab-option[data-sel=true],.lab-choice[data-picked]{border-color:var(--lab-accent);background:var(--lab-accent-soft);box-shadow:var(--lab-elevation-selected)}.lab-option[data-tone=correct],.lab-option[data-state=ok],.lab-choice[data-tone=correct]{border-color:var(--lab-good);background:var(--lab-good-soft);color:var(--lab-good-ink);cursor:default}.lab-option[data-tone=wrong],.lab-option[data-state=no],.lab-choice[data-tone=wrong]{border-color:var(--lab-danger);background:var(--lab-danger-soft);color:var(--lab-danger-ink)}.lab-choice{min-width:46px;min-height:var(--lab-target)}.lab-panel,.lab-challenge,.lab-evidence-surface,.lab-solution,.lab-objectives{border-radius:var(--lab-r-lg);border:1px solid var(--lab-border);background:var(--lab-surface);color:var(--lab-fg)}.lab-evidence-surface,.lab-solution{box-shadow:none}.lab-input{min-block-size:var(--lab-target);min-width:140px;padding:var(--lab-sp-8) var(--lab-sp-10);border:1px solid var(--lab-border-strong);border-radius:var(--lab-r-sm);background:var(--lab-sunken);color:var(--lab-fg);caret-color:var(--lab-accent);font:inherit;line-height:var(--lab-lh-ui);font-variant-numeric:tabular-nums;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){.lab-input{--lightningcss-light: ;--lightningcss-dark:initial}}.lab-input::placeholder{color:var(--lab-muted);opacity:1}textarea.lab-input{resize:vertical;min-block-size:5.5rem}.lab-input:disabled{cursor:not-allowed;opacity:.55}.lab-stepper{border:1.5px solid var(--lab-border-strong);border-radius:var(--lab-r-md);background:var(--lab-sunken);align-items:center;display:inline-flex;overflow:hidden}.lab-stepper b{text-align:center;min-width:30px;font-size:var(--lab-t-body);font-weight:var(--lab-w-bold);padding:0 var(--lab-sp-4);font-variant-numeric:tabular-nums}.lab-bar{align-items:center;gap:var(--lab-sp-14);padding:var(--lab-sp-12) 2px 2px;font-size:var(--lab-t-body);color:var(--lab-fg);flex-wrap:wrap;display:flex}.lab-bar .sep{opacity:.6}.lab-meter{gap:var(--lab-sp-2);flex-direction:column;display:flex}.lab-meter-head{font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);color:var(--lab-muted);justify-content:space-between;display:flex}.lab-meter-head b{font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums}.lab-meter-track{border-radius:var(--lab-r-sm);background:var(--lab-muted);height:12px}@supports (color:color-mix(in lab, red, red)){.lab-meter-track{background:color-mix(in oklab, var(--lab-muted) 18%, transparent)}}.lab-meter-track{overflow:hidden}.lab-meter-fill{border-radius:var(--lab-r-sm);background:var(--lab-meter-color,var(--lab-accent));height:100%;transition:width var(--lab-dur-fast)}.lab-objectives{margin:0 0 var(--lab-sp-12);padding:var(--lab-sp-10) var(--lab-sp-14);border-radius:var(--lab-r-md);background:var(--lab-accent-faint)}.lab-objectives ul{margin:var(--lab-sp-4) 0 0;padding-inline-start:var(--lab-sp-16)}.lab-objectives li{font-size:var(--lab-t-sm);color:var(--lab-fg);margin:1px 0}.lab-hints{margin-top:var(--lab-sp-12);gap:var(--lab-sp-6);flex-direction:column;align-items:flex-start;display:flex}.lab-hint{font-size:var(--lab-t-sm);color:var(--lab-fg);padding:var(--lab-sp-6) var(--lab-sp-10);border-radius:var(--lab-r-sm);background:var(--lab-warn-soft);max-width:60ch;margin:0}.lab-hint-btn{padding:var(--lab-sp-6) var(--lab-sp-14);border-radius:var(--lab-r-pill);border:1.5px dashed var(--lab-border-strong);color:var(--lab-muted);font-size:var(--lab-t-sm);font-weight:var(--lab-w-medium);cursor:pointer;transition:border-color var(--lab-dur-fast), color var(--lab-dur-fast);background:0 0;align-self:flex-start}@media (hover:hover) and (pointer:fine){.lab-hint-btn:hover{border-color:var(--lab-accent);color:var(--lab-fg)}}.lab-misconception{align-items:center;gap:var(--lab-sp-6);font-size:var(--lab-t-sm);font-weight:var(--lab-w-medium);padding:var(--lab-sp-4) var(--lab-sp-12);border-radius:var(--lab-r-pill);color:var(--lab-warn-fg);background:var(--lab-warn);display:inline-flex}@supports (color:color-mix(in lab, red, red)){.lab-misconception{background:color-mix(in oklab, var(--lab-warn) 22%, var(--lab-surface))}}.lab-reveal-btn{padding:var(--lab-sp-4) var(--lab-sp-12);border-radius:var(--lab-r-pill);border:1.5px dashed var(--lab-border-strong);color:var(--lab-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-medium);cursor:pointer;transition:border-color var(--lab-dur-fast), color var(--lab-dur-fast);background:0 0;align-self:flex-start}@media (hover:hover) and (pointer:fine){.lab-reveal-btn:hover{border-color:var(--lab-warn);color:var(--lab-fg)}}.lab-solution{margin-top:var(--lab-sp-8);max-width:64ch;padding:var(--lab-sp-10) var(--lab-sp-14);border-radius:var(--lab-r-md);border-color:var(--lab-warn)}@supports (color:color-mix(in lab, red, red)){.lab-solution{border-color:color-mix(in oklab, var(--lab-warn) 42%, transparent)}}.lab-solution{background:var(--lab-warn-soft)}.lab-solution-h{align-items:center;gap:var(--lab-sp-6);font-weight:var(--lab-w-bold);color:var(--lab-warn-fg);display:flex}.lab-solution-body{margin-top:var(--lab-sp-4);font-size:var(--lab-t-body);font-weight:var(--lab-w-medium);color:var(--lab-fg)}.lab-solution-note{margin:var(--lab-sp-4) 0 0;font-size:var(--lab-t-eyebrow);opacity:.7}.lab-challenge{gap:var(--lab-sp-14);width:100%;padding:var(--lab-sp-14) var(--lab-sp-16);box-shadow:none;flex-direction:column;display:flex}.lab-challenge-h{align-items:center;gap:var(--lab-sp-6);font-weight:var(--lab-w-bold);letter-spacing:var(--lab-ls-caps);display:flex}.lab-challenge-h:before{content:"";border-radius:var(--lab-r-pill);background:var(--lab-accent);width:7px;height:7px}.lab-challenge-count{padding:1px var(--lab-sp-8);border-radius:var(--lab-r-pill);font-variant-numeric:tabular-nums;letter-spacing:0;font-weight:var(--lab-w-semibold);color:var(--lab-muted);background:currentColor;margin-inline-start:auto}@supports (color:color-mix(in lab, red, red)){.lab-challenge-count{background:color-mix(in oklab, currentColor 8%, transparent)}}.lab-challenge-q{gap:var(--lab-sp-8);min-inline-size:0;border:0;flex-direction:column;align-items:flex-start;width:100%;margin:0;padding:0;display:flex}.lab-challenge-q+.lab-challenge-q{padding-top:var(--lab-sp-14);border-top:1px solid var(--lab-border)}.lab-challenge-prompt{align-items:baseline;gap:var(--lab-sp-8);max-width:68ch;font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);font-weight:var(--lab-w-medium);color:var(--lab-fg);margin:0;padding:0;display:flex}.lab-challenge-num{min-width:20px;height:20px;padding:0 var(--lab-sp-4);border-radius:var(--lab-r-pill);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-bold);font-variant-numeric:tabular-nums;color:var(--lab-accent);background:var(--lab-accent-soft);flex:none;justify-content:center;align-items:center;display:inline-flex;transform:translateY(1px)}.lab-choices{gap:var(--lab-sp-10);flex-wrap:wrap;display:flex}.lab-challenge .lab-choices{flex-wrap:wrap;align-items:stretch;width:100%;display:flex}.lab-challenge .lab-choice{width:auto;max-width:min(100%,34rem);min-height:var(--lab-target);padding:var(--lab-sp-8) var(--lab-sp-12);font-size:var(--lab-t-sm);font-weight:var(--lab-w-regular);line-height:var(--lab-lh-ui);text-align:center;white-space:normal;border-width:1px;flex:0 auto}.lab-challenge .lab-choice:hover:not(:disabled){box-shadow:none}@container lab-activity (max-width:34rem){.lab-challenge .lab-choice{flex-basis:100%;max-width:100%}}.lab-challenge-q .lab-choices{align-items:stretch;gap:var(--lab-sp-4);counter-reset:lab-answer;flex-direction:column;width:100%;max-width:34rem;margin-block-start:2px}.lab-challenge-q[data-response-layout=compact] .lab-choices{justify-content:start;gap:var(--lab-sp-6);grid-template-columns:repeat(2,minmax(0,1fr));max-width:100%;display:grid}.lab-challenge-q[data-response-layout=compact] .lab-choices[data-count="3"]{grid-template-columns:repeat(auto-fit,minmax(min(12rem,100%),1fr))}.lab-challenge-q[data-response-layout=compact] .lab-choices[data-count="4"]{grid-template-columns:repeat(2,minmax(0,1fr))}@container lab-activity (max-width:30rem){.lab-challenge-q[data-response-layout=compact] .lab-choices{grid-template-columns:minmax(0,1fr)}}@media (max-width:520px){.lab-challenge-q[data-response-layout=compact] .lab-choices{grid-template-columns:minmax(0,1fr)}}.lab-challenge-q[data-response-layout=compact] .lab-choice{background:var(--lab-sunken);border-color:#0000;height:100%}.lab-challenge-q .lab-choice{justify-content:flex-start;gap:var(--lab-sp-8);width:100%;max-width:100%;min-height:0;padding:var(--lab-sp-6) var(--lab-sp-8);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-surface);font-size:var(--lab-t-sm);font-weight:var(--lab-w-regular);line-height:var(--lab-lh-ui);text-align:start;white-space:normal;flex:none;position:relative}.lab-choice-control{opacity:0;pointer-events:none;block-size:1px!important;inline-size:1px!important;margin:0!important;position:absolute!important}.lab-choice:has(.lab-choice-control:focus-visible){border-color:var(--lab-accent);box-shadow:0 0 0 3px var(--lab-accent)}@supports (color:color-mix(in lab, red, red)){.lab-choice:has(.lab-choice-control:focus-visible){box-shadow:0 0 0 3px color-mix(in oklab, var(--lab-accent) 22%, transparent)}}.lab-choice[data-disabled]{cursor:not-allowed;opacity:.5}.lab-choice-label{min-inline-size:0;font-size:var(--lab-t-sm);font-weight:var(--lab-w-medium);line-height:var(--lab-lh-ui)}.lab-challenge-q .lab-choice:before{counter-increment:lab-answer;content:counter(lab-answer, upper-alpha);width:18px;height:20px;color:var(--lab-muted);font-size:var(--lab-t-micro);font-weight:var(--lab-w-medium);line-height:var(--lab-lh-tight);background:0 0;border:0;border-radius:0;flex:none;justify-content:center;align-self:flex-start;align-items:center;display:inline-flex}@media (hover:hover) and (pointer:fine){.lab-challenge-q .lab-choice:hover:not(:disabled){border-color:var(--lab-accent-edge);background:var(--lab-accent-faint);box-shadow:none}}.lab-challenge-q .lab-choice[data-picked]{font-weight:var(--lab-w-medium)}.lab-challenge-q .lab-choice[data-picked]:before{color:var(--lab-accent);background:0 0}@supports (color:color-mix(in lab, red, red)){.lab-challenge-q .lab-choice[data-picked]:before{color:color-mix(in oklab, var(--lab-accent) 80%, var(--lab-fg))}}.lab-challenge-q .lab-choice[data-tone=correct]:before{content:"✓";background:var(--lab-good-soft);border-color:var(--lab-good);color:var(--lab-good-ink)}.lab-challenge-q .lab-choice[data-tone=wrong]:before{content:"×";background:var(--lab-danger-soft);border-color:var(--lab-danger);color:var(--lab-danger-ink)}.lab-response-entry{align-items:center;gap:var(--lab-sp-10);grid-template-columns:minmax(12rem,28rem) auto;width:min(100%,38rem);display:grid}.lab-response-entry .lab-input{width:100%;min-width:0}.lab-response-entry>:is(.lab-explain,.lab-celebrate){grid-column:1/-1}.lab-response-entry[data-multiline]{grid-template-columns:minmax(0,1fr)}.lab-response-entry[data-multiline]>button{justify-self:start}.lab-ordering-list{gap:var(--lab-sp-6);counter-reset:none;width:min(100%,38rem);margin:0;padding:0;list-style:none;display:grid}.lab-ordering-list>li{align-items:center;gap:var(--lab-sp-10);min-height:var(--lab-target);padding:var(--lab-sp-4) var(--lab-sp-6) var(--lab-sp-4) var(--lab-sp-8);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-surface);grid-template-columns:1.75rem minmax(0,1fr) auto;display:grid}.lab-ordering-rank{border-radius:var(--lab-r-pill);background:var(--lab-sunken);width:1.5rem;height:1.5rem;color:var(--lab-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums;place-items:center;display:grid}.lab-ordering-label{min-width:0;font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui)}.lab-ordering-actions{gap:2px;display:inline-flex}.lab-reflection-rubric{gap:var(--lab-sp-6);width:min(100%,38rem);padding:var(--lab-sp-12) var(--lab-sp-12);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-sunken);display:grid}.lab-reflection-rubric>p{color:var(--lab-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;margin:0}.lab-reflection-rubric ul{gap:var(--lab-sp-6);margin:0;padding:0;list-style:none;display:grid}.lab-reflection-rubric li{font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);padding-inline-start:var(--lab-sp-16);position:relative}.lab-reflection-rubric li:before{color:var(--lab-muted);content:"•";position:absolute;inset-inline-start:2px}@container lab-activity (max-width:30rem){.lab-challenge-q[data-response-layout=compact] .lab-choices,.lab-response-entry{grid-template-columns:minmax(0,1fr)}.lab-response-entry>button{width:100%}}.lab-explain{padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm);font-size:var(--lab-t-body);font-weight:var(--lab-w-regular);line-height:var(--lab-lh-prose);color:var(--lab-fg);background:var(--lab-sunken);border-inline-start:3px solid var(--lab-good);display:block}.lab-explain>b:first-child{color:var(--lab-good-ink)}.lab-explain[data-state=no]{border-inline-start-color:var(--lab-border-strong);color:var(--lab-muted)}.lab-activity .lab-challenge{gap:var(--lab-sp-12);box-shadow:none;background:0 0;border:0;border-radius:0;padding:0}.lab-challenge-h{font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);letter-spacing:0;text-transform:none;color:var(--lab-fg)}.lab-challenge-h:before{display:none}.lab-challenge-prompt{max-width:70ch;font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold);line-height:var(--lab-lh-ui)}.lab-challenge-q .lab-choices,.lab-challenge-q[data-response-layout=compact] .lab-choices{gap:var(--lab-sp-6);max-width:40rem}.lab-challenge-q .lab-choice,.lab-challenge-q[data-response-layout=compact] .lab-choice{--lab-choice-edge:var(--lab-fg)}@supports (color:color-mix(in lab, red, red)){.lab-challenge-q .lab-choice,.lab-challenge-q[data-response-layout=compact] .lab-choice{--lab-choice-edge:color-mix(in oklab, var(--lab-fg) 20%, var(--lab-surface))}}.lab-challenge-q .lab-choice,.lab-challenge-q[data-response-layout=compact] .lab-choice{align-items:center;gap:var(--lab-sp-10);min-height:var(--lab-target);padding:var(--lab-sp-8) var(--lab-sp-12) var(--lab-sp-8) var(--lab-sp-8);border:1px solid var(--lab-choice-edge);border-radius:var(--lab-r-sm);background:var(--lab-surface);box-shadow:none;color:var(--lab-fg);transform:none}.lab-challenge-q .lab-choice .lab-choice-label{font-size:var(--lab-t-body);font-weight:var(--lab-w-regular)}.lab-challenge-q .lab-choice:before{border:1px solid var(--lab-choice-edge);border-radius:var(--lab-r-xs);width:1.5rem;height:1.5rem;color:var(--lab-fg);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);align-self:center}@media (hover:hover) and (pointer:fine){.lab-challenge-q .lab-choice:hover:not(:disabled){border-color:var(--lab-accent);background:var(--lab-accent-faint);transform:none}}.lab-challenge-q .lab-choice:active:not(:disabled){box-shadow:none;transform:none}.lab-challenge-q .lab-choice[data-picked]{border-color:var(--lab-accent);background:var(--lab-accent-soft);box-shadow:none}.lab-challenge-q 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b{min-width:1.4em;font-size:var(--lab-t-lg);font-weight:var(--lab-w-semibold);padding:0}.lab-field{gap:var(--lab-sp-4);flex-direction:column;min-width:0;display:flex}.lab-field-row{align-items:center;gap:var(--lab-sp-8);flex-wrap:wrap;display:inline-flex}.lab-field>.lab-field-row{width:100%;display:flex}.lab-field-val{font-size:var(--lab-t-body);font-weight:var(--lab-w-bold);font-variant-numeric:tabular-nums;text-align:end;min-width:3.4em}.lab-field>.lab-field-row>.lab-field-val{margin-inline-start:auto}.lab-field .lab-slider{flex:auto;width:auto;min-width:60px}.lab-slider [data-slot=slider-track]{background:var(--stage-fg)}@supports (color:color-mix(in lab, red, red)){.lab-slider [data-slot=slider-track]{background:color-mix(in oklab, var(--stage-fg) 15%, transparent)}}.lab-locked-wrap{display:contents}.lab-field[data-locked=true] 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(pointer:fine){.lab-play-toggle:hover:not(:disabled){filter:brightness(1.05);box-shadow:var(--lab-elevation-raised);transform:translateY(-1px)}}.lab-play-toggle:active:not(:disabled){box-shadow:var(--lab-elevation-pressed);transform:translateY(1px)}.lab-play-toggle[data-playing=false]{background:var(--lab-accent);color:var(--lab-accent-fg);border-color:#0000}.lab-stepnav{align-items:center;gap:var(--lab-sp-14);display:flex}.lab-dots{gap:var(--lab-sp-6);display:inline-flex}.lab-dot{border-radius:var(--lab-r-pill);background:var(--lab-border-strong);width:8px;height:8px;transition:background var(--lab-dur-base)}.lab-dot[data-on=true]{background:var(--lab-accent)}:root{--lang-pos-noun:#3c5fad;--lang-pos-verb:#be2e31;--lang-pos-article:#287c42;--lang-pos-adjective:#a35e16;--lang-pos-preposition:#0072a0;--lang-pos-pronoun:#794db6;--lang-pos-conjunction:#b2417f;--lang-pos-adverb:#007a7a;--lang-pos-other:#5d646f}@supports (color:lab(0% 0 0)){:root{--lang-pos-noun:lab(40.8305% 7.07054 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span{background:var(--c,var(--lab-accent));opacity:0;width:7px;height:7px;animation:lab-confetti-fly .8s var(--lab-ease) forwards;will-change:transform, opacity;border-radius:2px;position:absolute;top:-3px;left:-3px}@keyframes lab-confetti-fly{0%{opacity:1;transform:translate(0)rotate(0)scale(1)}70%{opacity:1}to{opacity:0;transform:translate(var(--dx), var(--dy)) rotate(var(--rot)) scale(.6)}}.lab-pop{animation:lab-pop var(--lab-dur-slow) var(--lab-ease-spring)}@keyframes lab-pop{0%{transform:scale(.82)}60%{transform:scale(1.08)}to{transform:scale(1)}}.lab-val-flash{animation:lab-val-flash .5s var(--lab-ease)}@keyframes lab-val-flash{0%{color:var(--lab-accent)}to{color:inherit}}.lab-predict-gate{gap:var(--lab-sp-12);flex-direction:column;display:flex}.lab-predict-body{min-width:0}.lab-predict-lock{min-height:clamp(7rem,24cqi,11rem);padding:var(--lab-sp-16);border-radius:var(--lab-r-md);color:var(--lab-fg);background:var(--lab-fg);border:0;place-items:center;display:grid}@supports (color:color-mix(in lab, red, red)){.lab-predict-lock{background:color-mix(in oklab, var(--lab-fg) 4%, var(--lab-surface))}}.lab-predict-lock-mark,.lab-predict-lock>strong~span:not(.lab-sr-only,.lab-predict-lock-sr){display:none}.lab-predict-lock-sr{clip-path:inset(50%)!important;white-space:nowrap!important;width:1px!important;height:1px!important;position:absolute!important;overflow:hidden!important}.lab-predict-lock>strong{align-items:center;gap:var(--lab-sp-6);padding:var(--lab-sp-6) var(--lab-sp-12);border:1px solid var(--lab-border);border-radius:var(--lab-r-pill);background:var(--lab-surface);color:var(--lab-fg);font-size:var(--lab-t-sm);font-weight:var(--lab-w-medium);line-height:var(--lab-lh-ui);text-align:center;display:inline-flex}.lab-predict-lock[data-preview]{background:0 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.lab-activity-workspace,.lab-activity[data-focus] .lab-activity-canvas{min-width:0;max-width:100%}.lab-activity[data-focus]>*{width:min(100%,100rem);margin-inline:auto}.lab-activity[data-focus][data-focus-layout=compact]>*{width:min(100%,68rem)}.lab-activity[data-focus][data-focus-layout=immersive] .lab-scene-viewport{height:clamp(22rem,58dvh,42rem)}@media (min-width:64rem){.lab-activity[data-focus][data-focus-layout=compact] .lab-activity-workspace:has(>.lab-activity-inspector){grid-template-columns:minmax(0,1fr) minmax(19rem,24rem);align-items:stretch}.lab-activity[data-focus][data-focus-layout=compact] .lab-activity-workspace>.lab-activity-inspector{border-inline-start:1px solid var(--border,var(--stage-grid));min-width:0}}@media (max-width:48rem){.lab-activity[data-focus]{padding:0}.lab-activity[data-focus][data-focus-layout=immersive] .lab-scene-viewport,.lab-activity[data-focus][data-focus-layout=immersive] .lab-scene-viewport[data-size]{height:clamp(15rem,72vw,22rem)}}.lab-activity-header{justify-content:space-between;align-items:flex-start;gap:var(--lab-sp-12);padding:var(--lab-sp-10) var(--lab-sp-12);display:flex}.lab-activity-heading{min-width:0}.lab-activity-eyebrow{margin-bottom:var(--lab-sp-4);color:var(--primary,var(--stage-accent));font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-bold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;display:block}.lab-activity-heading h3{font-size:clamp(1.25rem,2.4cqi,1.75rem);font-weight:var(--lab-w-bold);line-height:var(--lab-lh-title);letter-spacing:var(--lab-ls-tight);text-wrap:balance;margin:0}.lab-activity-description{margin:var(--lab-sp-4) 0 0;max-width:42rem;color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);text-wrap:pretty}.lab-activity-focus{align-items:center;gap:var(--lab-sp-6);min-width:var(--lab-target);min-height:var(--lab-target-compact);padding:var(--lab-sp-4) var(--lab-sp-8);border:1px solid var(--border,var(--stage-grid));border-radius:var(--lab-r-sm);background:var(--background,var(--stage-bg));color:var(--foreground,var(--stage-fg));font:inherit;font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);cursor:pointer;flex:none;display:inline-flex}@media (hover:hover) and (pointer:fine){.lab-activity-focus:hover{background:var(--accent,currentColor)}@supports (color:color-mix(in lab, red, red)){.lab-activity-focus:hover{background:var(--accent,color-mix(in oklab, currentColor 6%, transparent))}}}.lab-activity-focus svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:1rem;height:1rem}.lab-activity-status{align-items:center;gap:var(--lab-sp-10);font-variant-numeric:tabular-nums;min-width:0;padding:var(--lab-sp-6) var(--lab-sp-12);border-block-end:1px solid var(--border,var(--stage-grid));background:var(--muted,currentColor);display:flex}@supports (color:color-mix(in lab, red, red)){.lab-activity-status{background:color-mix(in oklab, var(--muted,currentColor) 24%, var(--background,var(--stage-bg)))}}.lab-activity-status{font-size:var(--lab-t-eyebrow)}.lab-activity-status>*+*{border-inline-start:1px solid var(--border,var(--stage-grid));padding-inline-start:var(--lab-sp-10)}.lab-status-line{align-items:center;gap:var(--lab-sp-8);min-width:0;font-weight:var(--lab-w-semibold);flex-wrap:wrap;display:inline-flex}.lab-activity-measured-pending{color:var(--lab-muted);opacity:.55}.lab-activity-workspace{gap:var(--lab-sp-12);padding:var(--lab-sp-12);display:grid}.lab-activity[data-inspector-layout=stacked] .lab-activity-workspace{grid-template-columns:minmax(0,1fr)}.lab-activity[data-inspector-layout=stacked] .lab-activity-workspace>.lab-activity-inspector{border:1px solid 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-2.16446))}}.editor-number-input{font-variant-numeric:tabular-nums;text-align:right;width:5.75rem}.editor-text-input{width:min(7.5rem,100%)}.editor-number-input:focus-visible,.editor-text-input:focus-visible,.editor-button:focus-visible,.editor-zoom-bar button:focus-visible,.logic-palette-item:focus-visible{outline:2px solid var(--ring,var(--stage-accent));outline-offset:2px}.editor-zoom-bar{z-index:var(--lab-z-raised);border:1px solid var(--border,#e4e4e7);border-radius:var(--radius,.625rem);background:var(--card,#fff);align-items:center;gap:2px;padding:2px;display:flex;position:absolute;bottom:.625rem;left:.625rem}@supports (color:lab(0% 0 0)){.editor-zoom-bar{border:1px solid var(--border,lab(90.6855% .392079 -1.45696))}}@supports (color:color-mix(in lab, red, red)){.editor-zoom-bar{background:color-mix(in oklab, var(--card,#fff) 88%, transparent)}}.editor-zoom-bar{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);box-shadow:0 1px 4px #00000014;box-shadow:0 1px 4px lab(0% 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-3.62182))}}.block-rows-editor{gap:var(--lab-sp-6);width:100%;display:grid}.block-row-editor{align-items:end;gap:var(--lab-sp-6);padding:var(--lab-sp-6);border:1px solid var(--border,var(--stage-grid));border-radius:calc(var(--radius,.625rem) - 2px);background:var(--background,var(--stage-bg));flex-wrap:wrap;display:flex}@supports (color:color-mix(in lab, red, red)){.block-row-editor{background:color-mix(in oklab, var(--background,var(--stage-bg)) 92%, transparent)}}.block-row-number,.block-row-bool{align-items:center;gap:var(--lab-sp-4);color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-micro);display:inline-flex}.block-row-field{gap:var(--lab-sp-4);flex-direction:column;flex:7rem;min-width:6.5rem;display:flex}.block-row-field[data-grow]{flex:2 9rem}.block-row-field[data-wide]{flex:100%}.block-row-field[data-fit]{flex:none;min-width:0}.block-row-caption{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-micro);font-weight:var(--lab-w-medium);letter-spacing:var(--lab-ls-caps);text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap;overflow:hidden}.block-row-input{width:100%;min-width:0;font-size:var(--lab-t-eyebrow)}.block-row-feedback{gap:var(--lab-sp-4);width:100%;min-width:0;padding-top:var(--lab-sp-6);border-top:1px solid var(--border,var(--stage-grid));flex-direction:column;flex-basis:100%;display:flex}.block-row-feedback-label{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-micro);font-weight:var(--lab-w-medium)}.block-row-actions{gap:2px;margin-inline-start:auto;display:inline-flex}.block-row-actions button{border-radius:calc(var(--radius,.625rem) - 4px);width:1.75rem;height:1.75rem;color:var(--muted-foreground,var(--stage-muted));font:inherit;cursor:pointer;background:0 0;border:0;place-items:center;display:inline-grid}.block-row-actions button:hover:not(:disabled){background:var(--accent,currentColor)}@supports (color:color-mix(in lab, red, red)){.block-row-actions button:hover:not(:disabled){background:var(--accent,color-mix(in oklab, currentColor 6%, transparent))}}.block-row-actions button:hover:not(:disabled){color:var(--foreground,var(--stage-fg))}.block-row-actions button[data-variant=danger]{color:var(--destructive,var(--stage-danger))}.block-row-actions button:disabled{opacity:.35;cursor:not-allowed}.block-row-actions button:focus-visible,.block-row-add:focus-visible{outline:2px solid var(--ring,var(--stage-accent));outline-offset:2px}.block-row-add{width:fit-content;min-height:2rem;padding:var(--lab-sp-6) var(--lab-sp-10);border:1px dashed var(--border,var(--stage-grid));border-radius:calc(var(--radius,.625rem) - 2px);color:var(--muted-foreground,var(--stage-muted));font:inherit;font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);cursor:pointer;background:0 0}.block-row-add:hover{border-color:var(--primary,var(--stage-accent));color:var(--foreground,var(--stage-fg))}@container lab-activity (max-width:59.99rem){.circuit-editor-activity .lab-activity-canvas,.logic-editor-activity .lab-activity-canvas{order:-1}.circuit-editor-activity .lab-activity-inspector>summary,.logic-editor-activity .lab-activity-inspector>summary{display:list-item}.circuit-editor-activity .lab-activity-inspector[open]>summary,.logic-editor-activity .lab-activity-inspector[open]>summary{border-bottom:1px solid var(--border,var(--stage-grid))}.circuit-editor-panel-head{display:none}}.logic-editor-activity .lab-activity-workspace{align-items:stretch}.logic-editor-activity .lab-activity-canvas{min-height:0}.logic-editor-activity .lab-activity-canvas>div:last-child{border:1px solid var(--border,var(--stage-grid));border-radius:var(--lab-r-md);touch-action:none;height:clamp(26rem,62cqw,42rem);min-height:0;overflow:hidden}.logic-editor-activity[data-focus] .lab-activity-canvas>div:last-child{height:clamp(32rem,70dvh,64rem)}.logic-editor-activity .lab-activity-inspector-body>div:not(.circuit-editor-panel-head){padding:var(--lab-sp-8)}.logic-editor-activity .lab-activity-inspector button{min-height:2.5rem}.logic-editor-viewport{background-color:var(--stage-bg);position:relative;overflow:hidden}.logic-palette-list,.logic-editor-form,.logic-editor-goal{flex-direction:column;display:flex}.logic-palette-list{gap:var(--lab-sp-4)}.logic-palette-item{align-items:center;gap:var(--lab-sp-8);width:100%;min-height:2.5rem;padding:var(--lab-sp-6) var(--lab-sp-8);border-radius:calc(var(--radius,.6rem) - 2px);color:var(--foreground,var(--stage-fg));font:inherit;font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);text-align:left;cursor:grab;background:0 0;border:1px solid #0000;display:flex}.logic-palette-item:hover{border-color:var(--border,var(--stage-grid));background:var(--accent,currentColor)}@supports (color:color-mix(in lab, red, red)){.logic-palette-item:hover{background:var(--accent,color-mix(in oklab, currentColor 5%, transparent))}}.logic-palette-item>span:not(.logic-palette-dot){flex:1;min-width:0}.logic-palette-dot{width:1.875rem;font-size:var(--lab-t-body);text-align:center}.logic-palette-glyph{flex-shrink:0}.logic-palette-add{width:.9rem;height:.9rem;color:var(--muted-foreground,var(--stage-muted));flex:none}.logic-editor-empty{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);line-height:var(--lab-lh-ui)}.logic-editor-form{gap:var(--lab-sp-12)}.logic-editor-goal{gap:var(--lab-sp-8)}.logic-editor-goal>div{gap:var(--lab-sp-6);flex-wrap:wrap;display:flex}.logic-editor-divider{background:var(--border,var(--stage-grid));height:1px}.logic-scene-frame{width:100%;max-width:min(100%, max(var(--logic-scene-width), 34rem));border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg);margin-inline:auto;overflow:hidden}.logic-scene-control{cursor:default}.logic-scene-control[data-interactive]{cursor:pointer;outline:none}.logic-scene-control[data-interactive]:focus-visible{filter:drop-shadow(0 0 4px var(--stage-accent))}.logic-edit-scene{width:100%;max-width:var(--logic-edit-width);height:var(--logic-edit-height,auto);border-radius:var(--lab-r-sm);background:var(--stage-bg);touch-action:none;display:block}.logic-edit-scene[data-pannable]{max-width:none;height:var(--logic-edit-height,100%)}.logic-port-target{cursor:crosshair}.logic-node-drag{cursor:grab}.logic-node-drag:active,.logic-palette-item:active{cursor:grabbing}.logic-display{max-width:var(--logic-display-width);margin-inline:auto;display:block}.logic-display-bit{cursor:pointer;outline:none}.logic-display-bit:focus-visible{filter:drop-shadow(0 0 4px var(--stage-accent))}.logic-display-readout{font-variant-numeric:tabular-nums}.sequential-signal-flow{gap:var(--lab-sp-12);grid-template-columns:minmax(0,1fr) auto minmax(12rem,1.25fr) auto minmax(0,1fr);align-items:stretch;padding:clamp(.75rem,2vw,1.25rem);display:grid}.sequential-bank{align-content:start;gap:var(--lab-sp-10);min-width:0;display:grid}.sequential-bank-label{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase}.sequential-bit-row,.sequential-cell-list{gap:var(--lab-sp-8);flex-wrap:wrap;display:flex}.sequential-bit-row button[data-active]{border-color:var(--primary,var(--stage-accent));background:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.sequential-bit-row button[data-active]{background:color-mix(in oklab, var(--primary,var(--stage-accent)) 10%, transparent)}}.sequential-cell{gap:var(--lab-sp-6);min-width:8.5rem;padding:var(--lab-sp-14);border:1px solid var(--border,var(--stage-grid));border-radius:var(--radius,.75rem);background:var(--card,var(--stage-bg));box-shadow:0 .25rem 1rem var(--foreground,var(--stage-fg));display:grid}@supports (color:color-mix(in lab, red, red)){.sequential-cell{box-shadow:0 .25rem 1rem color-mix(in oklab, var(--foreground,var(--stage-fg)) 6%, transparent)}}.sequential-cell>span{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);text-transform:capitalize}.sequential-cell>strong{color:var(--primary,var(--stage-accent));font-size:var(--lab-t-lg);font-variant-numeric:tabular-nums}.sequential-output{align-items:center;gap:var(--lab-sp-8);padding:var(--lab-sp-10) var(--lab-sp-12);border:1px solid var(--border,var(--stage-grid));border-radius:var(--radius,.75rem);display:inline-flex}.sequential-output[data-high]{border-color:var(--stage-success);color:var(--stage-success)}.sequential-flow-arrow{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-title);align-self:center}.sequential-trace{gap:var(--lab-sp-8);padding:var(--lab-sp-12) var(--lab-sp-16);border-top:1px solid var(--border,var(--stage-grid));display:grid}.sequential-trace p{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);margin:0}.sequential-trace ol{gap:var(--lab-sp-6);padding:0 0 var(--lab-sp-4);margin:0;list-style:none;display:flex;overflow-x:auto}.sequential-trace li{min-width:3.25rem;padding:var(--lab-sp-6) var(--lab-sp-8);border-radius:calc(var(--radius,.75rem) * .7);background:var(--muted,var(--stage-grid));display:grid}@supports (color:color-mix(in lab, red, red)){.sequential-trace li{background:var(--muted,color-mix(in oklab, var(--stage-grid) 35%, transparent))}}.sequential-trace li{font-variant-numeric:tabular-nums}.sequential-trace li span{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-micro)}.sequential-transport-state{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow)}@media (max-width:44rem){.sequential-signal-flow{grid-template-columns:1fr}.sequential-flow-arrow{display:none}}.logic-build-brief{align-items:flex-start;gap:var(--lab-sp-16);padding:var(--lab-sp-12);border-bottom:1px solid var(--border,var(--stage-grid));background:var(--primary,var(--stage-accent));flex-wrap:wrap;display:flex}@supports (color:color-mix(in lab, red, red)){.logic-build-brief{background:color-mix(in oklab, var(--primary,var(--stage-accent)) 4%, transparent)}}.logic-build-brief>div:last-child{gap:var(--lab-sp-4);min-width:0;display:grid;overflow-x:auto}.logic-build-brief>div:last-child>span{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow)}.logic-build-target{gap:var(--lab-sp-4);display:grid}.tree-authoring{gap:var(--lab-sp-12);display:grid}.tree-authoring-preview,.tree-authoring-controls{align-content:start;gap:var(--lab-sp-10);min-width:0;display:grid}.tree-authoring-preview .tree-scene{min-height:18rem}.tree-authoring-preview .tree-scene svg{height:18rem}.tree-authoring-preview-head{justify-content:space-between;align-items:center;gap:var(--lab-sp-12);display:flex}.tree-authoring-preview-head span{align-items:center;gap:var(--lab-sp-6);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-bold);display:inline-flex}.tree-authoring-preview-head svg{width:1rem;height:1rem;color:var(--lab-accent)}.tree-authoring-preview-head small{color:var(--lab-muted);font-size:var(--lab-t-micro)}.tree-authoring fieldset{gap:var(--lab-sp-10);min-width:0;padding:var(--lab-sp-12);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-surface);grid-template-columns:repeat(2,minmax(0,1fr));margin:0;display:grid}.tree-authoring legend{padding-inline:var(--lab-sp-4);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-bold)}.tree-authoring label{align-content:start;gap:var(--lab-sp-4);min-width:0;color:var(--lab-muted);font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);display:grid}.tree-authoring input:not([type=checkbox]),.tree-authoring select,.tree-authoring textarea{width:100%;min-height:2.35rem;padding:var(--lab-sp-8) var(--lab-sp-8);border:1px solid var(--input,var(--lab-border));border-radius:var(--lab-r-sm);background:var(--background,var(--stage-bg));color:var(--lab-fg);font:inherit;line-height:var(--lab-lh-ui);resize:vertical}.tree-authoring input:focus-visible,.tree-authoring select:focus-visible,.tree-authoring textarea:focus-visible{outline:2px solid var(--lab-ring);outline-offset:1px}.tree-authoring [aria-invalid=true]{border-color:var(--lab-danger)}.tree-authoring fieldset:last-child label:last-child{grid-column:1/-1}.tree-authoring-preview-note{color:var(--lab-muted);font-size:var(--lab-t-micro)}.tree-authoring-learner{border:1px solid var(--lab-border);border-radius:var(--lab-r-md);padding:var(--lab-sp-8);background:var(--lab-surface)}@media (min-width:56rem){.tree-authoring{grid-template-columns:minmax(22rem,1.1fr) minmax(21rem,.9fr);align-items:start}.tree-authoring-preview{position:sticky;top:1rem}.tree-authoring-preview[data-mode=learner]{position:static}}@media (max-width:35rem){.tree-authoring fieldset{grid-template-columns:1fr}.tree-authoring fieldset:last-child label:last-child{grid-column:auto}}.math-pattern-table{margin:var(--lab-sp-8) 0;border-collapse:collapse;font-size:var(--lab-t-sm);font-variant-numeric:tabular-nums}.math-pattern-table caption{margin-bottom:var(--lab-sp-4);color:var(--stage-muted);text-align:left}.math-pattern-table th,.math-pattern-table td{padding:var(--lab-sp-4) var(--lab-sp-10)}.math-pattern-table th{color:var(--stage-muted);text-align:right}.math-pattern-table td{text-align:center}.math-pattern-table td[data-state=correct]{color:var(--stage-good);font-weight:var(--lab-w-semibold)}.math-pattern-table td[data-state=wrong]{color:var(--stage-warn)}.math-pattern-table td[data-state=future]{color:var(--stage-muted)}.math-area-expansion{color:var(--stage-muted);margin-inline-start:var(--lab-sp-4)}.math-harmonic-layout{gap:var(--lab-sp-12);grid-template-columns:minmax(17rem,.85fr) minmax(24rem,2.15fr);align-items:stretch;display:grid}.math-harmonic-phasor,.math-harmonic-waves{min-width:0}.math-harmonic-form .lab-activity-canvas{background:0 0;border:0;padding:0}.math-harmonic-layout svg{width:100%;height:auto;max-height:24rem;display:block}.math-solid-net .lab-activity-workspace{align-items:start}.math-solid-net .lab-activity-canvas{max-width:54rem;min-height:clamp(20rem,46vh,27rem);margin-inline:auto}.math-solid-net-figure{width:100%;max-height:25rem}.math-grapher-subtitle{margin:var(--lab-sp-4) 0 0;color:var(--stage-muted);font-size:var(--lab-t-eyebrow);text-align:center}.math-grapher-legend{gap:var(--lab-sp-4) var(--lab-sp-16);padding:var(--lab-sp-6) 2px;font-size:var(--lab-t-eyebrow);flex-wrap:wrap;display:flex}.math-grapher-legend-item{align-items:center;gap:var(--lab-sp-6);color:var(--stage-fg);display:inline-flex}.math-grapher-formula{font-size:var(--lab-t-body);line-height:1}.math-grapher-swatch{background:var(--curve-color);border-radius:2px;width:.625rem;height:.625rem}.math-grapher-errors{color:var(--stage-danger);font-size:var(--lab-t-eyebrow);padding:2px}@media (max-width:45rem){.math-harmonic-layout{grid-template-columns:minmax(0,1fr)}.math-harmonic-layout svg,.math-solid-net-figure{max-height:19rem}}.math-explain{color:var(--stage-muted)}.math-success{color:var(--stage-good);font-weight:var(--lab-w-semibold);margin:0}.math-control-heading{font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold)}.math-aside-stack{gap:var(--lab-sp-10);display:grid}.math-rate-readout{gap:var(--lab-sp-6);font-size:var(--lab-t-eyebrow);font-variant-numeric:tabular-nums;display:grid}.math-rate-equation{font-weight:var(--lab-w-semibold)}.math-rate-equation strong[data-solved=true]{color:var(--stage-good)}.math-transform-instruction{align-items:center;gap:var(--lab-sp-8);font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold);flex-wrap:wrap;display:inline-flex}.math-transform-footer{justify-items:center;gap:var(--lab-sp-12);margin-top:var(--lab-sp-4);display:grid}.math-coordinate-readout{font-weight:var(--lab-w-medium);font-variant-numeric:tabular-nums}.math-condition{color:var(--stage-muted)}.math-condition[data-met=true]{color:var(--stage-good)}.math-status-start{align-self:start}.math-trunk-value{color:#715035;color:lab(37.1642% 11.7147 21.6913)}.math-domain-label{color:var(--stage-accent)}.math-range-label{color:var(--stage-accent-2)}.math-sign-chip{padding:2px var(--lab-sp-6);border-radius:var(--lab-r-pill);font-size:var(--lab-t-micro);font-weight:var(--lab-w-bold);line-height:var(--lab-lh-tight)}.math-sign-chip[data-sign=positive]{color:var(--stage-good);background:var(--stage-good)}@supports (color:color-mix(in lab, red, red)){.math-sign-chip[data-sign=positive]{background:color-mix(in oklab, var(--stage-good) 16%, transparent)}}.math-sign-chip[data-sign=negative]{color:var(--stage-danger);background:var(--stage-danger)}@supports (color:color-mix(in lab, red, red)){.math-sign-chip[data-sign=negative]{background:color-mix(in oklab, var(--stage-danger) 16%, transparent)}}.math-sign-chip[data-sign=zero]{color:var(--stage-muted);background:var(--stage-muted)}@supports (color:color-mix(in lab, red, red)){.math-sign-chip[data-sign=zero]{background:color-mix(in oklab, var(--stage-muted) 16%, 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b{border-radius:var(--lab-r-pill);background:var(--lab-accent);min-width:1.35rem;height:1.35rem;color:var(--lab-accent-fg);font-variant-numeric:tabular-nums;place-items:center;display:grid}.algorithm-order-strip .algorithm-order-empty{color:var(--lab-muted);background:0 0;font-style:italic;font-weight:400}.algorithm-inspector dl div[data-current]{background:var(--lab-accent-soft)}.algorithm-inspector dl div[data-done] dd{color:var(--lab-good)}.algorithm-edge-list{background:var(--lab-border);gap:1px;display:grid}.algorithm-edge-list li{gap:0 var(--lab-sp-8);padding:var(--lab-sp-6) var(--lab-sp-8);background:var(--lab-surface);grid-template-columns:minmax(0,1fr) auto;display:grid}.algorithm-edge-list li b{font-variant-numeric:tabular-nums}.algorithm-edge-list li em{color:var(--lab-muted);grid-column:1/-1;font-style:normal}.algorithm-edge-list li em:empty{display:none}.algorithm-edge-list li[data-status=taken]{background:var(--lab-good-soft)}.algorithm-edge-list li[data-status=skipped] 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ol{gap:var(--lab-sp-4);font-size:var(--lab-t-micro);margin:0;padding-left:1.2rem;display:grid}.heap-dispatch-order strong{min-width:1.4rem;color:var(--lab-accent);display:inline-block}.tree-node .tree-node-label{fill:var(--lab-muted);font-weight:var(--lab-w-semibold)}.tree-node[data-current] .tree-node-label{fill:var(--lab-accent)}.tree-node[data-queued] .tree-node-halo{opacity:1;fill:none;stroke:var(--lab-accent);stroke-width:1.5px;stroke-dasharray:4 3;vector-effect:non-scaling-stroke}.tree-node[data-marked] .tree-node-face{stroke:var(--lab-danger);stroke-width:3px;stroke-dasharray:5 3;vector-effect:non-scaling-stroke}.tree-queue{flex-flow:wrap}.tree-delete-cases ol{color:var(--lab-muted)}.tree-delete-cases li[data-here]{color:var(--lab-fg);font-weight:var(--lab-w-bold)}.dp-grid>div{position:relative}.dp-grid[data-headers]{gap:var(--lab-sp-4)}.dp-grid[data-headers]>div{min-height:2.25rem}.dp-head{min-width:0;padding:0 var(--lab-sp-4);color:var(--lab-muted);font-size:var(--lab-t-micro);font-weight:var(--lab-w-bold);font-variant-numeric:tabular-nums;white-space:nowrap;place-items:center;display:grid}.dp-head[data-axis=row]{justify-items:end}.dp-corner{font-weight:var(--lab-w-medium)}.dp-choice{color:var(--lab-muted);font-size:var(--lab-t-micro);font-style:normal;line-height:1}.dp-arrow{color:var(--lab-good);font-size:var(--lab-t-eyebrow);font-style:normal;font-weight:var(--lab-w-bold);line-height:1;position:absolute;inset-block-end:2px;inset-inline-end:4px}.dp-grid>div[data-blocked]{background:repeating-linear-gradient(135deg,currentColor 0 6px,#0000 6px 12px);border-style:dashed}@supports (color:color-mix(in lab, red, red)){.dp-grid>div[data-blocked]{background:repeating-linear-gradient(135deg, color-mix(in oklab, currentColor 7%, transparent) 0 6px, transparent 6px 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(max-width:34rem){.biology-figure-row{grid-template-columns:minmax(0,1fr)}.biology-figure-row>svg{justify-self:center}}.biology-cell-investigator-scene{min-height:20rem;padding:var(--lab-sp-8);place-items:center;display:grid}.biology-cell-investigator-scene>svg{width:min(100%,36rem)}.biology-cell-investigator-art{border-radius:var(--lab-radius,.75rem);background:var(--stage-bg);width:min(100%,48rem);margin:0;display:block;position:relative;overflow:hidden}.biology-cell-investigator-art>img{object-fit:cover;width:100%;height:auto;display:block}.biology-cell-investigator-art .biology-cell-investigator-reveal{background:radial-gradient(circle at 73% 50%, var(--lab-surface) 0 26%, transparent 26.4%);position:absolute;inset:0}@supports (color:color-mix(in lab, red, red)){.biology-cell-investigator-art .biology-cell-investigator-reveal{background:radial-gradient(circle at 73% 50%, color-mix(in oklab, var(--lab-surface) 94%, var(--stage-muted)) 0 26%, transparent 26.4%)}}.biology-cell-investigator-art .biology-cell-investigator-reveal{opacity:.94;pointer-events:none;transition:background var(--lab-dur-base) var(--lab-ease), opacity var(--lab-dur-base) var(--lab-ease)}.biology-cell-investigator-scene[data-stain] .biology-cell-investigator-reveal{opacity:.7}.biology-cell-investigator-scene[data-boundary] .biology-cell-investigator-reveal{filter:drop-shadow(0 0 2px var(--stage-accent))}.biology-cell-investigator-scene[data-chlorophyll] .biology-cell-investigator-reveal{background:radial-gradient(circle at 73% 50%, var(--stage-good) 0 26%, transparent 26.4%)}@supports (color:color-mix(in lab, red, red)){.biology-cell-investigator-scene[data-chlorophyll] .biology-cell-investigator-reveal{background:radial-gradient(circle at 73% 50%, color-mix(in oklab, var(--stage-good) 18%, transparent) 0 26%, transparent 26.4%)}}.biology-cell-investigator-scene[data-chlorophyll] .biology-cell-investigator-reveal{opacity:.42}.biology-cell-investigator-scene[data-revealed] .biology-cell-investigator-reveal{opacity:0}.biology-investigator-controls{gap:var(--lab-sp-12);display:grid}.biology-investigator-tools{gap:var(--lab-sp-8);grid-template-columns:repeat(3,minmax(0,1fr)) auto;align-items:stretch;display:grid}.biology-investigator-tools .lab-btn{min-width:0}.biology-investigator-tools svg{fill:none;stroke:currentColor;stroke-width:1.75px;stroke-linecap:round;stroke-linejoin:round;width:1.25rem;height:1.25rem}@media (max-width:34rem){.biology-cell-investigator-scene{min-height:17rem;padding-inline:0}.biology-investigator-tools{grid-template-columns:repeat(3,minmax(0,1fr))}.biology-investigator-tools .lab-icon-button{grid-column:1/-1;justify-self:start}}.statistics-normal-tick.fig-text{font-size:9.5px}.statistics-normal-probability.fig-text{font-size:13px}.statistics-z-input{width:var(--statistics-input-width);padding:var(--lab-sp-2) var(--lab-sp-6);border:1px 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var(--stage-grid);border-radius:var(--lab-r-sm);overflow:auto}.statistics-z-table{border-collapse:collapse;font-size:var(--lab-t-micro);font-variant-numeric:tabular-nums}.statistics-z-corner,.statistics-z-column{padding:var(--lab-sp-4) var(--lab-sp-6);border-bottom:2px solid var(--stage-grid);background:var(--stage-bg);position:sticky;top:0}.statistics-z-corner{z-index:var(--lab-z-raised);color:var(--stage-accent);left:0}.statistics-z-column{color:var(--stage-muted)}.statistics-z-column[data-selected=true],.statistics-z-row-label[data-selected=true]{background:var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.statistics-z-column[data-selected=true],.statistics-z-row-label[data-selected=true]{background:color-mix(in oklab, var(--stage-accent) 18%, var(--stage-bg))}}.statistics-z-row-label{padding:var(--lab-sp-2) var(--lab-sp-6);border-inline-end:1px solid var(--stage-grid);background:var(--stage-bg);color:var(--stage-accent);font-weight:var(--lab-w-semibold);position:sticky;left:0}.statistics-z-cell{padding:var(--lab-sp-2) var(--lab-sp-6);border-bottom:1px solid var(--stage-grid)}@supports (color:color-mix(in lab, red, red)){.statistics-z-cell{border-bottom:1px solid color-mix(in oklab, var(--stage-grid) 50%, transparent)}}.statistics-z-cell{color:var(--stage-fg);text-align:right;cursor:pointer}.statistics-z-cell[data-row-selected=true]{background:var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.statistics-z-cell[data-row-selected=true]{background:color-mix(in oklab, var(--stage-accent) 7%, 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var(--lab-dur-fast), cy var(--lab-dur-fast)}.statistics-data-point[data-dragging=true]{transition:none}.statistics-mean-marker{transform:translateX(var(--statistics-translate));transition:transform var(--lab-dur-fast)}.statistics-mean-marker[data-dragging=true]{transition:none}.statistics-stat-strip{justify-content:center;gap:var(--lab-sp-8);margin:var(--lab-sp-12) 0;padding:var(--lab-sp-8) 0;border-block:1px solid var(--stage-grid);flex-wrap:wrap;display:flex}.statistics-stat-compact{min-width:3.25rem}.statistics-stat-compact .statistics-stat-value{font-size:var(--lab-t-sm)}.statistics-chart-crosshair{cursor:crosshair}.statistics-sampling-scene{margin-top:var(--lab-sp-6)}.statistics-sampling-summary,.statistics-formula-summary{gap:var(--lab-sp-16);margin-top:var(--lab-sp-6);font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums;flex-wrap:wrap;display:flex}.statistics-formula-summary{margin-block:var(--lab-sp-10);align-items:center}.statistics-sampling-good{color:var(--stage-good)}.statistics-sampling-accent{color:var(--stage-accent)}.statistics-sampling-detail{color:var(--stage-muted);font-weight:var(--lab-w-regular)}.statistics-diverges{color:var(--stage-danger);font-weight:var(--lab-w-medium)}.statistics-explanation{margin-top:var(--lab-sp-4);color:var(--stage-muted);font-size:var(--lab-t-eyebrow)}.geometry-foundation-scene{aspect-ratio:16/9;width:100%;display:block}.geometry-scene-title{fill:var(--foreground,var(--stage-fg));font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold)}.geometry-scene-note{fill:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow)}.geometry-area-a,.geometry-area-b,.geometry-area-c{stroke-width:2.5px;rx:8px}.geometry-area-a{fill:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.geometry-area-a{fill:color-mix(in oklab, var(--primary,var(--stage-accent)) 22%, transparent)}}.geometry-area-a{stroke:var(--primary,var(--stage-accent))}.geometry-area-b{fill:var(--chart-2,var(--stage-accent-2))}@supports (color:color-mix(in lab, red, red)){.geometry-area-b{fill:color-mix(in oklab, var(--chart-2,var(--stage-accent-2)) 22%, transparent)}}.geometry-area-b{stroke:var(--chart-2,var(--stage-accent-2))}.geometry-area-c{fill:var(--chart-3,var(--stage-warn))}@supports (color:color-mix(in lab, red, red)){.geometry-area-c{fill:color-mix(in oklab, var(--chart-3,var(--stage-warn)) 18%, transparent)}}.geometry-area-c{stroke:var(--chart-3,var(--stage-warn))}.geometry-area-diagonal{fill:none;stroke:var(--chart-3,var(--stage-warn))}@supports (color:color-mix(in lab, red, red)){.geometry-area-diagonal{stroke:color-mix(in oklab, var(--chart-3,var(--stage-warn)) 58%, transparent)}}.geometry-area-diagonal{stroke-width:1.5px;stroke-dasharray:5 5}.geometry-area-value{fill:var(--foreground,var(--stage-fg));font-size:var(--lab-t-sm);font-weight:var(--lab-w-bold)}.geometry-area-value.geometry-area-legs{font-size:11px}.geometry-operator{fill:var(--muted-foreground,var(--stage-muted));font-size:28px;font-weight:var(--lab-w-medium)}@container lab-activity (max-width:42.5rem){.geometry-foundation-scene{aspect-ratio:4/3}}.solid-layer-top{fill:var(--fig-hue-1)}@supports (color:color-mix(in lab, red, red)){.solid-layer-top{fill:color-mix(in oklab, var(--fig-hue-1) 20%, var(--fig-paper))}}.solid-layer-top{stroke:var(--fig-hue-1);stroke-width:2px}.solid-layer-side{fill:var(--fig-hue-1)}@supports (color:color-mix(in lab, red, red)){.solid-layer-side{fill:color-mix(in oklab, var(--fig-hue-1) 34%, var(--fig-paper))}}.solid-layer-side{stroke:var(--fig-hue-1);stroke-width:1.5px}.solid-layer-front{fill:var(--fig-hue-2)}@supports (color:color-mix(in lab, red, red)){.solid-layer-front{fill:color-mix(in oklab, var(--fig-hue-2) 24%, 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var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg);overflow:hidden}.geometry-builder-toolbar{align-items:center;gap:var(--lab-sp-6);padding:var(--lab-sp-10) var(--lab-sp-12);border-bottom:1px solid var(--stage-grid);background:var(--stage-muted);flex-wrap:wrap;display:flex}@supports (color:color-mix(in lab, red, red)){.geometry-builder-toolbar{background:color-mix(in oklab, var(--stage-muted) 8%, var(--stage-bg))}}.geometry-builder-title{font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);margin-inline-end:var(--lab-sp-4)}.geometry-builder-tool,.geometry-builder-clear{align-items:center;gap:var(--lab-sp-4);min-height:2.25rem;padding:var(--lab-sp-6) var(--lab-sp-8);border:1px solid var(--stage-grid);border-radius:var(--lab-r-sm);background:var(--stage-bg);color:var(--stage-fg);font:inherit;font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);cursor:pointer;display:inline-flex}.geometry-builder-tool[data-selected]{border-color:var(--stage-accent);background:var(--stage-accent);color:var(--stage-accent-fg,white)}.geometry-builder-tool:hover:not([data-selected]){background:var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.geometry-builder-tool:hover:not([data-selected]){background:color-mix(in oklab, var(--stage-accent) 7%, var(--stage-bg))}}.geometry-builder-tool:focus-visible,.geometry-builder-clear:focus-visible{outline:2px solid var(--stage-accent);outline-offset:2px}.geometry-builder-clear{color:var(--stage-muted);margin-inline-start:auto}.geometry-builder-clear:hover{color:var(--stage-danger)}.geometry-builder-hint{min-height:1.75rem;padding:var(--lab-sp-6) var(--lab-sp-12);color:var(--stage-muted);font-size:var(--lab-t-eyebrow);margin:0}.geometry-builder-stage{cursor:crosshair}@media (max-width:35rem){.geometry-builder-title{width:100%}.geometry-builder-clear{margin-inline-start:0}}.measurement-scene{aspect-ratio:32/17;width:100%;display:block}.measurement-shape{fill:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.measurement-shape{fill:color-mix(in oklab, var(--primary,var(--stage-accent)) 12%, transparent)}}.measurement-shape{stroke:var(--primary,var(--stage-accent));stroke-width:3px}.measurement-fill{fill:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.measurement-fill{fill:color-mix(in oklab, var(--primary,var(--stage-accent)) 12%, 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5}.measurement-dimension{stroke:var(--chart-2,var(--stage-accent-2));stroke-width:2px;marker-start:none}.measurement-tick{stroke:var(--muted-foreground,var(--stage-muted));stroke-width:1.5px}.measurement-marker,.measurement-handle{fill:var(--primary,var(--stage-accent));stroke:var(--primary-foreground,white);stroke-width:3px}.measurement-handle{cursor:grab}.measurement-handle:active{cursor:grabbing}.measurement-interactive{touch-action:none;-webkit-user-select:none;user-select:none}.measurement-label,.measurement-small{paint-order:stroke;stroke:var(--card,var(--stage-bg));stroke-width:3px;stroke-linejoin:round}.measurement-label{fill:var(--foreground,var(--stage-fg));font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold)}.measurement-small{fill:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow)}.measurement-kicker{fill:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-micro);font-weight:var(--lab-w-bold);letter-spacing:var(--lab-ls-caps)}.measurement-layer{fill:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.measurement-layer{fill:color-mix(in oklab, var(--primary,var(--stage-accent)) 7%, transparent)}}.measurement-layer{stroke:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.measurement-layer{stroke:color-mix(in oklab, var(--primary,var(--stage-accent)) 52%, transparent)}}.measurement-net{fill:var(--chart-2,var(--stage-accent-2))}@supports (color:color-mix(in lab, red, red)){.measurement-net{fill:color-mix(in oklab, var(--chart-2,var(--stage-accent-2)) 12%, transparent)}}.measurement-net{stroke:var(--chart-2,var(--stage-accent-2));stroke-width:2px}.measurement-path{fill:var(--chart-3,var(--stage-warn))}@supports (color:color-mix(in lab, red, red)){.measurement-path{fill:color-mix(in oklab, var(--chart-3,var(--stage-warn)) 38%, transparent)}}.measurement-path{stroke:var(--chart-3,var(--stage-warn));stroke-width:2px}.measurement-water{fill:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.measurement-water{fill:color-mix(in oklab, var(--primary,var(--stage-accent)) 28%, transparent)}}.measurement-water{stroke:var(--primary,var(--stage-accent));stroke-width:2px}.measurement-region{fill:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.measurement-region{fill:color-mix(in oklab, var(--primary,var(--stage-accent)) 16%, transparent)}}.measurement-region{stroke:var(--primary,var(--stage-accent));stroke-width:3px}.measurement-cell{fill:#0000;stroke:var(--border,var(--stage-grid))}@supports (color:color-mix(in lab, red, red)){.measurement-cell{stroke:color-mix(in oklab, var(--border,var(--stage-grid)) 72%, transparent)}}.measurement-cell[data-cell=full]{fill:var(--primary,var(--stage-accent))}@supports (color:color-mix(in lab, red, red)){.measurement-cell[data-cell=full]{fill:color-mix(in oklab, var(--primary,var(--stage-accent)) 40%, transparent)}}.measurement-cell[data-cell=partial]{fill:var(--chart-3,var(--stage-warn))}@supports (color:color-mix(in lab, red, red)){.measurement-cell[data-cell=partial]{fill:color-mix(in oklab, var(--chart-3,var(--stage-warn)) 34%, transparent)}}.measurement-cell[data-cell=partial]{stroke-dasharray:3 2}.measurement-hint{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);margin:0}@container lab-activity (max-width:42.5rem){.measurement-scene{aspect-ratio:4/3}}.ict-digit-glyph{cursor:default;flex:none}.ict-digit-glyph[data-interactive=true]{cursor:pointer}.ict-digit-content{pointer-events:none}.ict-wheel-peek{font-size:18px}.ict-wheel-digit{font-size:26px}.ict-digit-content.fig-text{font-size:24px}.ict-wheel-row{align-items:flex-start;gap:var(--lab-sp-8);display:flex}.ict-wheel-place{align-items:center;gap:var(--lab-sp-4);flex-direction:column;display:flex}.ict-place-weight{line-height:var(--lab-lh-title);text-align:center}.ict-place-power{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);font-variant-numeric:tabular-nums}.ict-place-value{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums;opacity:.6}.ict-place-value[data-active=true]{color:var(--lab-good,var(--stage-good));opacity:1}.ict-number-scene,.ict-odometer-scene{min-width:0;color:var(--foreground,var(--stage-fg));overflow:auto}.ict-number-scene{place-content:center;gap:var(--lab-sp-12);min-height:clamp(10rem,24vw,15rem);padding:var(--lab-sp-16) var(--lab-sp-10);display:grid}.ict-bit-groups{justify-content:center;align-items:flex-start;gap:var(--lab-sp-16);flex-wrap:wrap;display:flex}.ict-bit-group{align-items:center;gap:var(--lab-sp-6);flex-direction:column;display:flex}.ict-bit-group-cells{gap:var(--lab-sp-4);padding:var(--lab-sp-6);border:1px solid var(--border,var(--stage-grid));border-radius:var(--lab-r-sm);display:flex}.ict-bit-group-cells[data-partial=true]{background:var(--muted-foreground,var(--stage-muted))}@supports (color:color-mix(in lab, red, red)){.ict-bit-group-cells[data-partial=true]{background:color-mix(in oklab, var(--muted-foreground,var(--stage-muted)) 14%, transparent)}}.ict-group-digit{color:var(--primary,var(--stage-accent));font-size:var(--lab-t-hero);font-weight:var(--lab-w-bold);font-variant-numeric:tabular-nums}.ict-group-digit[data-partial=true]{color:var(--muted-foreground,var(--stage-muted))}.ict-number-equation{color:var(--foreground,var(--stage-fg));font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums;text-align:center;margin:0}.ict-number-note{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);line-height:var(--lab-lh-ui);text-align:center}.ict-color-preview,.ict-wheel-centered{justify-content:center;display:flex}.ict-color-preview{align-items:center;gap:var(--lab-sp-10);margin:var(--lab-sp-10) 0 0}.ict-color-swatch{border:1px solid var(--border,var(--stage-grid));border-radius:var(--lab-r-xs);background:var(--ict-swatch);width:4rem;height:1.5rem}.ict-color-preview figcaption{color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);gap:2px;display:grid}.ict-color-preview figcaption span{color:var(--foreground,var(--stage-fg));font-family:var(--font-mono,ui-monospace, monospace);font-weight:var(--lab-w-regular)}.ict-odometer-scene{gap:var(--lab-sp-12);width:fit-content;max-width:100%;padding:var(--lab-sp-12) var(--lab-sp-8);flex-direction:column;margin-inline:auto;display:flex}.ict-odometer-row{align-items:center;gap:var(--lab-sp-12);border-radius:var(--lab-r-sm);display:flex}.ict-odometer-row[data-highlighted=true]{padding:var(--lab-sp-6) var(--lab-sp-8);background:var(--lab-good,var(--stage-good))}@supports (color:color-mix(in lab, red, red)){.ict-odometer-row[data-highlighted=true]{background:color-mix(in oklab, var(--lab-good,var(--stage-good)) 12%, transparent)}}.ict-number-activity .lab-activity-inspector-section{gap:var(--lab-sp-8)}.ict-base-label{width:2.625rem;color:var(--muted-foreground,var(--stage-muted));font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-bold)}.ict-odometer-row[data-highlighted=true] .ict-base-label{color:var(--lab-good,var(--stage-good))}.ict-base-value{color:var(--foreground,var(--stage-fg));font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums;margin-inline-start:auto}.ict-transport-actions{gap:var(--lab-sp-6);display:flex}.ict-transport-state{justify-content:center;align-items:baseline;gap:var(--lab-sp-8);min-width:0;font-size:var(--lab-t-eyebrow);font-variant-numeric:tabular-nums;display:flex}.ict-transport-state span{color:var(--muted-foreground,var(--stage-muted));text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.ict-race-action{justify-content:center;align-items:center;gap:var(--lab-sp-6);min-width:6.5rem;min-height:2.75rem;display:inline-flex}.ict-race-action svg{fill:none;stroke:currentColor;stroke-width:2px;width:1rem;height:1rem}.ict-wheel-centered,.ict-odometer-row{min-width:max-content}@container lab-activity (max-width:34rem){.ict-odometer-row{gap:var(--lab-sp-8)}.ict-base-value{padding-inline-end:var(--lab-sp-4)}.ict-transport-state span{display:none}.ict-race-action{min-width:5.5rem;padding-inline:var(--lab-sp-16)}}@media (max-width:40rem){.finance-statement-grid{grid-template-columns:1fr}.finance-ratio-list{padding:var(--lab-sp-12)}.finance-ratio-row{gap:var(--lab-sp-4) var(--lab-sp-8);grid-template-columns:minmax(0,1fr) auto;display:grid}.finance-ratio-name{width:auto}.finance-ratio-row .finance-meter-track{grid-area:2/1/auto/-1}.finance-ratio-value{width:auto}}@media (max-width:35rem){.compound-snowball{max-width:none}}.sample-space-scene{max-width:100%;margin-block:var(--lab-sp-8);padding:var(--lab-sp-12);border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg);overscroll-behavior-inline:contain;overflow-x:auto}.sample-space-grid{grid-template-columns:repeat(var(--sample-space-columns), minmax(2.75rem, 1fr));gap:var(--lab-sp-4);min-width:max-content;display:grid}.sample-space-grid[data-dimensional="2"]{grid-template-columns:auto repeat(var(--sample-space-columns), minmax(2.75rem, 1fr))}.sample-space-axis{color:var(--stage-accent-2);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-bold);justify-content:center;align-items:center;padding:2px;display:flex}.sample-space-axis[data-axis=row]{color:var(--stage-accent);justify-content:flex-end;padding-inline-end:var(--lab-sp-4)}.outcome-product{align-items:center;gap:var(--lab-sp-8);margin-block:var(--lab-sp-6);font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold);flex-wrap:wrap;display:flex}.outcome-factor{align-items:center;gap:var(--lab-sp-4);display:inline-flex}.outcome-operator{color:var(--stage-muted)}.outcome-factor-value{color:var(--stage-accent)}.outcome-factor-label{color:var(--stage-muted);font-size:var(--lab-t-micro);font-weight:var(--lab-w-regular)}.outcome-total{color:var(--stage-good)}.outcome-total-label{color:var(--stage-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-regular)}.outcome-overflow-note{margin-block:var(--lab-sp-12);padding:var(--lab-sp-12);border:1px dashed var(--stage-grid);border-radius:var(--lab-r-sm);color:var(--stage-muted)}.outcome-space{gap:var(--lab-sp-6);margin-block:var(--lab-sp-12);padding:var(--lab-sp-10);border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg);flex-wrap:wrap;display:flex}.outcome-option{min-width:2.75rem;min-height:2.75rem;padding:var(--lab-sp-4) var(--lab-sp-6);border:1.5px solid var(--stage-grid);border-radius:var(--lab-r-sm);color:inherit;cursor:pointer;touch-action:manipulation;background:0 0;justify-content:center;align-items:center;gap:2px;display:inline-flex}.outcome-option:hover{border-color:var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.outcome-option:hover{border-color:color-mix(in oklab, var(--stage-accent) 58%, var(--stage-grid))}}.outcome-option:hover{background:var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.outcome-option:hover{background:color-mix(in oklab, var(--stage-accent) 7%, transparent)}}.outcome-option[aria-pressed=true]{border-color:var(--stage-good);background:var(--stage-good)}@supports (color:color-mix(in lab, red, red)){.outcome-option[aria-pressed=true]{background:color-mix(in oklab, var(--stage-good) 16%, transparent)}}.outcome-option:focus-visible{outline:3px solid var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.outcome-option:focus-visible{outline:3px solid color-mix(in oklab, var(--stage-accent) 35%, transparent)}}.outcome-option:focus-visible{outline-offset:2px}.outcome-probability{color:var(--stage-good);font-weight:var(--lab-w-semibold)}@media (max-width:35rem){.outcome-space{gap:var(--lab-sp-8);padding:var(--lab-sp-8)}.outcome-option{flex:auto}}.probability-chart-scene{padding:var(--lab-sp-8);border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg)}.probability-chart-svg{width:100%;max-width:33.75rem;height:auto;margin-inline:auto;display:block}.probability-chart-column{cursor:pointer;outline:none}.probability-urn-panel{align-items:center;gap:var(--lab-sp-4);border-block-end:1px dashed var(--stage-grid);flex-direction:column;margin-block-end:var(--lab-sp-8);padding-block-end:var(--lab-sp-8);display:flex}.probability-urn-svg{width:100%;max-width:16.25rem;height:auto;margin-inline:auto;display:block}.probability-chart-column:focus-visible{filter:drop-shadow(0 0 4px var(--stage-accent))}.probability-series[data-series=with]{color:var(--stage-accent)}.probability-series[data-series=without]{color:var(--stage-warn)}.probability-inspector{gap:var(--lab-sp-4);padding:var(--lab-sp-8) var(--lab-sp-10);border-radius:var(--lab-r-sm);background:var(--stage-fg);display:grid}@supports (color:color-mix(in lab, red, red)){.probability-inspector{background:color-mix(in oklab, var(--stage-fg) 5%, transparent)}}.probability-inspector{font-size:var(--lab-t-eyebrow)}.probability-inspector[data-tone=success]{background:var(--stage-good)}@supports (color:color-mix(in lab, red, red)){.probability-inspector[data-tone=success]{background:color-mix(in oklab, var(--stage-good) 10%, transparent)}}.probability-equation{font-size:var(--lab-t-sm)}.probability-prompt{font-size:var(--lab-t-eyebrow)}.expected-value-verdict{color:var(--stage-danger);font-weight:var(--lab-w-semibold)}.expected-value-verdict[data-fair=true]{color:var(--stage-good)}.expected-value-equation{font-size:var(--lab-t-eyebrow);gap:2px;display:grid}.expected-value-prompt{font-size:var(--lab-t-eyebrow)}.expected-value-run{font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums}.probability-contribution-board{gap:var(--lab-sp-16);width:min(100%,46rem);margin-inline:auto;padding:clamp(.875rem,2vw,1.25rem);display:grid}.probability-board-heading,.probability-benchmark-legend{justify-content:space-between;gap:var(--lab-sp-8) var(--lab-sp-16);color:var(--stage-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;flex-wrap:wrap;display:flex}.probability-outcome-strip{border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-fg);min-height:5.5rem;display:flex;overflow:hidden}@supports (color:color-mix(in lab, red, red)){.probability-outcome-strip{background:color-mix(in oklab, var(--stage-fg) 4%, transparent)}}.probability-outcome-segment{flex:0 1 var(--probability-width);min-width:2.75rem;padding:var(--lab-sp-8) var(--lab-sp-4);border-inline-end:1px solid var(--stage-bg);place-content:center;display:grid;container-type:inline-size}@supports (color:color-mix(in lab, red, red)){.probability-outcome-segment{border-inline-end:1px solid color-mix(in oklab, var(--stage-bg) 75%, transparent)}}.probability-outcome-segment{background:var(--probability-color)}@supports (color:color-mix(in lab, red, red)){.probability-outcome-segment{background:color-mix(in oklab, var(--probability-color) 72%, var(--stage-bg))}}.probability-outcome-segment{color:var(--stage-fg);text-align:center}.probability-outcome-segment strong{font-variant-numeric:tabular-nums;font-size:clamp(1rem,2.5vw,1.5rem)}.probability-outcome-segment span{color:var(--stage-fg)}@supports (color:color-mix(in lab, red, red)){.probability-outcome-segment span{color:color-mix(in oklab, var(--stage-fg) 76%, var(--stage-bg))}}.probability-outcome-segment span{font-size:var(--lab-t-eyebrow)}@container (max-width:5.5rem){.probability-outcome-segment span{display:none}}.probability-contribution-list{gap:var(--lab-sp-10);display:grid}.probability-contribution-row{align-items:center;gap:var(--lab-sp-12);grid-template-columns:minmax(4rem,.65fr) minmax(5rem,2fr) 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red, red)){.recall-card-face[data-flipped=true] .recall-reveal-hint,.recall-deck-card[data-flipped=true] .recall-reveal-hint{color:color-mix(in oklab, var(--recall-tone) 72%, var(--lab-fg))}}.recall-card-body{font-size:var(--lab-t-sm);color:var(--lab-fg)}.recall-card-back{gap:var(--lab-sp-8);display:grid}.recall-card-answer{font-weight:var(--lab-w-semibold);color:var(--recall-tone)}@supports (color:color-mix(in lab, red, red)){.recall-card-answer{color:color-mix(in oklab, var(--recall-tone) 78%, var(--lab-fg))}}.recall-card-hook{font-size:var(--lab-t-sm);color:var(--lab-muted)}.recall-card-hook strong{color:var(--lab-fg)}.recall-deck{margin-block:var(--lab-sp-16);padding:var(--lab-sp-4)}.recall-deck-header{justify-content:space-between;align-items:center;gap:var(--lab-sp-8);padding:var(--lab-sp-4);margin-bottom:var(--lab-sp-10);flex-wrap:wrap;display:flex}.recall-deck-heading{align-items:center;gap:var(--lab-sp-8);display:flex}.recall-deck-icon{border-radius:var(--lab-r-md);background:var(--lab-accent);justify-content:center;align-items:center;width:1.75rem;height:1.75rem;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.recall-deck-icon{background:color-mix(in oklab, var(--lab-accent) 12%, transparent)}}.recall-deck-icon{color:var(--lab-accent)}.recall-deck-title{font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);color:var(--lab-fg)}.recall-deck-meta{font-size:var(--lab-t-micro);color:var(--lab-muted)}.recall-deck-progress{border-radius:var(--lab-r-pill);background:var(--lab-sunken);width:100%;height:.35rem;margin:0 var(--lab-sp-4) var(--lab-sp-10);overflow:hidden}.recall-deck-progress-fill{background:var(--lab-accent);height:100%;transition:width var(--lab-dur-base) var(--lab-ease)}.recall-deck-card{justify-content:space-between;gap:var(--lab-sp-10);min-height:11rem;padding:var(--lab-sp-16);border:1px solid var(--lab-border);border-radius:var(--lab-r-lg);background:var(--lab-surface);width:100%;box-shadow:var(--lab-elevation-control);color:var(--lab-fg);text-align:left;cursor:pointer;transition:border-color var(--lab-dur-fast) var(--lab-ease), background-color var(--lab-dur-fast) var(--lab-ease), box-shadow var(--lab-dur-fast) var(--lab-ease);flex-direction:column;display:flex;position:relative}@media (hover:hover) and (pointer:fine){.recall-deck-card:hover{border-color:var(--recall-tone)}@supports (color:color-mix(in lab, red, red)){.recall-deck-card:hover{border-color:color-mix(in oklab, var(--recall-tone) 40%, var(--lab-border))}}.recall-deck-card:hover{box-shadow:var(--lab-elevation-raised);transform:translateY(-1px)}}.recall-deck-card[data-flipped=true]{border-color:var(--recall-tone)}@supports (color:color-mix(in lab, red, red)){.recall-deck-card[data-flipped=true]{border-color:color-mix(in oklab, var(--recall-tone) 50%, var(--lab-border))}}.recall-deck-card[data-flipped=true]{background:var(--recall-tone-soft)}.recall-deck-card-row{justify-content:space-between;align-items:center;gap:var(--lab-sp-8);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-medium);color:var(--lab-muted);display:flex}.recall-deck-card-tag{align-items:center;gap:var(--lab-sp-4);padding:var(--lab-sp-2) var(--lab-sp-8);border-radius:var(--lab-r-pill);background:var(--lab-sunken);font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);color:var(--lab-fg);display:inline-flex}.recall-deck-card-tag svg{color:var(--recall-tone)}.recall-deck-card-body{font-size:var(--lab-t-body);color:var(--lab-fg)}.recall-deck-card-back{gap:var(--lab-sp-8);display:grid}.recall-deck-card-answer{font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold);color:var(--recall-tone)}@supports (color:color-mix(in lab, red, red)){.recall-deck-card-answer{color:color-mix(in oklab, var(--recall-tone) 78%, var(--lab-fg))}}.recall-deck-card-hook{font-size:var(--lab-t-sm);color:var(--lab-muted)}.recall-deck-card-hook strong{color:var(--lab-fg)}.recall-deck-card-footer{font-size:var(--lab-t-micro);color:var(--lab-muted);justify-content:space-between;align-items:center;display:flex}.recall-mastered-toggle{align-items:center;gap:var(--lab-sp-4);padding:var(--lab-sp-4) var(--lab-sp-8);border-radius:var(--lab-r-md);background:var(--lab-sunken);color:var(--lab-muted);font-size:var(--lab-t-micro);font-weight:var(--lab-w-medium);transition:background-color var(--lab-dur-fast) var(--lab-ease), color var(--lab-dur-fast) var(--lab-ease);border:1px solid #0000;display:inline-flex}.recall-mastered-toggle:hover{background:var(--lab-accent)}@supports (color:color-mix(in lab, red, red)){.recall-mastered-toggle:hover{background:color-mix(in oklab, var(--lab-accent) 12%, var(--lab-sunken))}}.recall-mastered-toggle:hover{color:var(--lab-fg)}.recall-deck-empty{justify-content:space-between;align-items:center;gap:var(--lab-sp-10);display:flex}.recall-deck-grades{gap:var(--lab-sp-8);margin-top:var(--lab-sp-10);grid-template-columns:repeat(3,1fr);display:grid}.recall-deck-grade-prompt{color:var(--lab-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-medium);grid-column:1/-1;margin:0}.recall-grade-btn{place-items:center;gap:var(--lab-sp-2);padding:var(--lab-sp-6) var(--lab-sp-10);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-surface);color:var(--lab-fg);font-size:var(--lab-t-sm);font-weight:var(--lab-w-medium);box-shadow:var(--lab-elevation-control);transition:border-color var(--lab-dur-fast) var(--lab-ease), background-color var(--lab-dur-fast) var(--lab-ease), box-shadow var(--lab-dur-fast) var(--lab-ease), transform var(--lab-dur-fast) var(--lab-ease);display:grid}.recall-grade-btn span{font-size:var(--lab-t-micro);font-weight:var(--lab-w-regular);color:var(--lab-muted)}.recall-grade-btn[data-grade=again]{border-color:var(--lab-danger)}@supports (color:color-mix(in lab, red, red)){.recall-grade-btn[data-grade=again]{border-color:color-mix(in oklab, var(--lab-danger) 36%, var(--lab-border))}}.recall-grade-btn[data-grade=again]{background:var(--lab-danger-soft);color:var(--lab-danger-ink)}.recall-grade-btn[data-grade=soon]{border-color:var(--lab-warn)}@supports (color:color-mix(in lab, red, red)){.recall-grade-btn[data-grade=soon]{border-color:color-mix(in oklab, var(--lab-warn) 42%, var(--lab-border))}}.recall-grade-btn[data-grade=soon]{background:var(--lab-warn-soft);color:var(--lab-warn-ink)}.recall-grade-btn[data-grade=got-it]{border-color:var(--lab-good)}@supports (color:color-mix(in lab, red, red)){.recall-grade-btn[data-grade=got-it]{border-color:color-mix(in oklab, var(--lab-good) 38%, var(--lab-border))}}.recall-grade-btn[data-grade=got-it]{background:var(--lab-good-soft);color:var(--lab-good-ink)}@media (hover:hover) and (pointer:fine){.recall-grade-btn:hover{box-shadow:var(--lab-elevation-raised);transform:translateY(-1px)}}.recall-grade-btn:active{box-shadow:var(--lab-elevation-pressed);transform:translateY(1px)}@media (max-width:24rem){.recall-deck-grades{grid-template-columns:1fr}}.recall-deck-footer{margin-top:var(--lab-sp-10);justify-content:space-between;align-items:center;display:flex}.recall-deck-dots{align-items:center;gap:var(--lab-sp-4);display:flex}.recall-deck-dot{width:var(--lab-target);height:var(--lab-target);background:0 0;border:0;position:relative}.recall-deck-dot:before{content:"";border-radius:var(--lab-r-pill);background:var(--lab-muted);width:.5rem;height:.5rem;position:absolute;inset:50% auto auto 50%}@supports (color:color-mix(in lab, red, red)){.recall-deck-dot:before{background:color-mix(in oklab, var(--lab-muted) 40%, transparent)}}.recall-deck-dot:before{transition:width var(--lab-dur-fast) var(--lab-ease), background-color var(--lab-dur-fast) var(--lab-ease);transform:translate(-50%,-50%)}.recall-deck-dot[data-active=true]:before{background:var(--lab-accent);width:1rem}.recall-detective{margin-block:var(--lab-sp-12);padding:var(--lab-sp-14);border:1px solid var(--lab-border);border-radius:var(--lab-r-lg);background:var(--lab-surface);box-shadow:var(--lab-shadow-sm)}.recall-detective-header{align-items:center;gap:var(--lab-sp-8);margin-bottom:var(--lab-sp-10);display:flex}.recall-detective-icon{border-radius:var(--lab-r-pill);background:var(--lab-warn-soft);width:1.5rem;height:1.5rem;color:var(--lab-warn-ink);justify-content:center;align-items:center;display:inline-flex}.recall-detective-title{font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);color:var(--lab-fg)}.recall-detective-prompt{margin-bottom:var(--lab-sp-8);font-size:var(--lab-t-sm);color:var(--lab-muted)}.recall-detective-lines{gap:var(--lab-sp-6);display:grid}.recall-detective-line{justify-content:space-between;align-items:center;gap:var(--lab-sp-8);padding:var(--lab-sp-8) var(--lab-sp-10);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-sunken);font-family:ui-monospace,monospace;font-size:var(--lab-t-sm);color:var(--lab-fg);text-align:left;display:flex}.recall-detective-line[data-selected=true][data-correct-spot=true]{border-color:var(--lab-danger);background:var(--lab-danger-soft);color:var(--lab-danger-ink);font-weight:var(--lab-w-semibold)}.recall-detective-line[data-selected=true][data-correct-spot=false]{border-color:var(--lab-good);background:var(--lab-good-soft);color:var(--lab-good-ink)}.recall-detective-index{font-family:inherit;font-size:var(--lab-t-micro);color:var(--lab-muted)}.recall-detective-verdict{align-items:center;gap:var(--lab-sp-4);padding:var(--lab-sp-2) var(--lab-sp-8);border-radius:var(--lab-r-md);font-size:var(--lab-t-micro);font-weight:var(--lab-w-medium);display:inline-flex}.recall-detective-line[data-correct-spot=true] .recall-detective-verdict{background:var(--lab-danger)}@supports (color:color-mix(in lab, red, red)){.recall-detective-line[data-correct-spot=true] .recall-detective-verdict{background:color-mix(in oklab, var(--lab-danger) 18%, transparent)}}.recall-detective-line[data-correct-spot=true] .recall-detective-verdict{color:var(--lab-danger-ink)}.recall-detective-line[data-correct-spot=false] .recall-detective-verdict{background:var(--lab-good)}@supports (color:color-mix(in lab, red, red)){.recall-detective-line[data-correct-spot=false] .recall-detective-verdict{background:color-mix(in oklab, var(--lab-good) 18%, transparent)}}.recall-detective-line[data-correct-spot=false] .recall-detective-verdict{color:var(--lab-good-ink)}.recall-detective-explain{margin-top:var(--lab-sp-10);padding:var(--lab-sp-10);border-inline-start:3px solid var(--lab-danger);border-radius:var(--lab-r-sm);background:var(--lab-danger-soft);font-size:var(--lab-t-sm);color:var(--lab-fg)}.recall-detective-explain[data-tone=good]{border-inline-start-color:var(--lab-good);background:var(--lab-good-soft)}.recall-detective-explain strong{align-items:center;gap:var(--lab-sp-4);margin-bottom:var(--lab-sp-4);color:var(--lab-danger-ink);display:flex}.recall-detective-explain[data-tone=good] strong{color:var(--lab-good-ink)}.recall-sequence{margin-block:var(--lab-sp-12);padding:var(--lab-sp-14);border:1px solid var(--lab-border);border-radius:var(--lab-r-lg);background:var(--lab-surface);box-shadow:var(--lab-shadow-sm)}.recall-sequence-header{justify-content:space-between;align-items:center;gap:var(--lab-sp-8);margin-bottom:var(--lab-sp-8);display:flex}.recall-sequence-title{align-items:center;gap:var(--lab-sp-6);font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);color:var(--lab-fg);display:flex}.recall-sequence-title svg{color:var(--lab-accent)}.recall-sequence-hint{font-size:var(--lab-t-micro);color:var(--lab-muted)}.recall-sequence-prompt{margin-bottom:var(--lab-sp-8);font-size:var(--lab-t-sm);color:var(--lab-muted)}.recall-sequence-list{gap:var(--lab-sp-6);display:grid}.recall-sequence-item{justify-content:space-between;align-items:center;gap:var(--lab-sp-8);padding:var(--lab-sp-8) var(--lab-sp-10);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-sunken);font-size:var(--lab-t-sm);display:flex}.recall-sequence-index{border-radius:var(--lab-r-pill);background:var(--lab-accent);justify-content:center;align-items:center;width:1.25rem;height:1.25rem;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.recall-sequence-index{background:color-mix(in oklab, var(--lab-accent) 14%, transparent)}}.recall-sequence-index{font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);color:var(--lab-accent);flex-shrink:0}.recall-sequence-footer{margin-top:var(--lab-sp-10);justify-content:space-between;align-items:center;display:flex}.recall-sequence-result{align-items:center;gap:var(--lab-sp-6);font-size:var(--lab-t-micro);font-weight:var(--lab-w-medium);color:var(--lab-good-ink);display:inline-flex}.recall-sequence-result[data-success=false]{color:var(--lab-danger-ink)}.recall-summary{margin-block:var(--lab-sp-16);padding:var(--lab-sp-12) 0}.recall-summary-header{align-items:center;gap:var(--lab-sp-8);padding-bottom:var(--lab-sp-10);border-bottom:1px solid var(--lab-border);margin-bottom:var(--lab-sp-14);display:flex}.recall-summary-icon{border-radius:var(--lab-r-md);background:var(--lab-accent);justify-content:center;align-items:center;width:1.75rem;height:1.75rem;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.recall-summary-icon{background:color-mix(in oklab, var(--lab-accent) 12%, transparent)}}.recall-summary-icon{color:var(--lab-accent)}.recall-summary-title{font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold);color:var(--lab-fg);margin:0}.recall-summary-subtitle{font-size:var(--lab-t-micro);color:var(--lab-muted)}.recall-summary-grid{gap:var(--lab-sp-10);grid-template-columns:1fr;display:grid}@container lab-activity (min-width:40rem){.recall-summary-grid{grid-template-columns:1fr 1fr}}.recall-summary-section{padding:var(--lab-sp-10) var(--lab-sp-10) var(--lab-sp-10) var(--lab-sp-14);border:0;border-inline-start:3px solid var(--recall-tone);border-radius:var(--lab-r-sm);background:var(--recall-tone-soft);flex-direction:column;display:flex}.recall-summary-section-header{justify-content:space-between;align-items:center;gap:var(--lab-sp-8);margin-bottom:var(--lab-sp-8);display:flex}.recall-summary-section-title{align-items:center;gap:var(--lab-sp-6);font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);color:var(--lab-fg);margin:0;display:flex}.recall-summary-section-title svg{color:var(--recall-tone)}.recall-summary-badge{padding:var(--lab-sp-2) var(--lab-sp-8);border-radius:var(--lab-r-pill);background:var(--recall-tone)}@supports (color:color-mix(in lab, red, red)){.recall-summary-badge{background:color-mix(in oklab, var(--recall-tone) 13%, var(--lab-surface))}}.recall-summary-badge{font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);color:var(--recall-tone)}@supports (color:color-mix(in lab, red, red)){.recall-summary-badge{color:color-mix(in oklab, var(--recall-tone) 76%, var(--lab-fg))}}.recall-summary-points{gap:var(--lab-sp-6);font-size:var(--lab-t-sm);color:var(--lab-muted);flex:1;display:grid}.recall-summary-point{align-items:flex-start;gap:var(--lab-sp-6);display:flex}.recall-summary-point-dot{border-radius:var(--lab-r-pill);background:var(--recall-tone);flex-shrink:0;width:.3rem;height:.3rem;margin-top:.4rem}.recall-summary-point-text{color:var(--lab-fg)}.concept-sprint{gap:var(--lab-sp-12);outline:none;width:100%;max-width:440px;margin-inline:auto;display:grid}.concept-sprint-voice{gap:var(--lab-sp-4);padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-md);background:var(--lab-sunken);display:grid}.concept-sprint-speaker{gap:var(--lab-sp-6);font-size:var(--lab-t-eyebrow);flex-wrap:wrap;align-items:baseline;display:flex}.concept-sprint-speaker span{color:var(--lab-muted)}.concept-sprint-intro{font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);margin:0}.concept-sprint-card{gap:var(--lab-sp-8);padding:var(--lab-sp-12) var(--lab-sp-14);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-surface);transition:border-color var(--lab-dur-fast) var(--lab-ease), box-shadow var(--lab-dur-fast) var(--lab-ease);animation:.22s ease-out concept-sprint-in;display:grid;box-shadow:0 8px 18px -14px #00000073;box-shadow:0 8px 18px -14px lab(0% 0 0/.45)}.concept-sprint-card.is-correct{border-color:var(--lab-good)}@supports (color:color-mix(in lab, red, red)){.concept-sprint-card.is-correct{border-color:color-mix(in oklab, var(--lab-good) 60%, transparent)}}.concept-sprint-card.is-correct{box-shadow:0 0 0 3px var(--lab-good-soft);animation:.32s ease-out concept-sprint-pop}.concept-sprint-card.is-wrong{border-color:var(--lab-danger)}@supports (color:color-mix(in lab, red, red)){.concept-sprint-card.is-wrong{border-color:color-mix(in oklab, var(--lab-danger) 50%, transparent)}}.concept-sprint-meta{gap:var(--lab-sp-6);flex-wrap:wrap;display:flex}.concept-sprint-meta:empty{display:none}.concept-sprint-tag,.concept-sprint-retry{padding:var(--lab-sp-2) var(--lab-sp-8);border-radius:var(--lab-r-pill);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold)}.concept-sprint-tag{background:var(--lab-sunken);color:var(--lab-muted)}.concept-sprint-retry{background:var(--lab-accent-faint);color:var(--lab-accent)}.concept-sprint-prompt{font-size:var(--lab-t-lg);font-weight:var(--lab-w-semibold);line-height:var(--lab-lh-title);margin:0}.concept-sprint-code{padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm);background:var(--lab-sunken);font-family:var(--font-mono,ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);font-size:var(--lab-t-sm);white-space:pre;tab-size:4;margin:0;line-height:1.5;overflow-x:auto}.concept-sprint-choices{gap:var(--lab-sp-6);display:grid}.concept-sprint-choice.concept-sprint-choice{gap:var(--lab-sp-10);height:auto;min-height:2.75rem;padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-md);text-align:left;white-space:normal;transition:border-color var(--lab-dur-fast) var(--lab-ease), background-color var(--lab-dur-fast) var(--lab-ease), opacity var(--lab-dur-fast) var(--lab-ease);justify-content:flex-start;align-items:center;display:flex}.concept-sprint-choice:disabled{opacity:1}.concept-sprint-key{border:1px solid var(--lab-border);border-radius:var(--lab-r-xs);width:1.5rem;height:1.5rem;color:var(--lab-muted);font-size:var(--lab-t-micro);font-weight:var(--lab-w-bold);font-variant-numeric:tabular-nums;flex:none;place-items:center;display:inline-grid}.concept-sprint-choice-text{min-width:0;font-weight:var(--lab-w-semibold);flex:auto}.concept-sprint-mark{font-weight:var(--lab-w-bold);flex:none}.concept-sprint-choice.is-right{border-color:var(--lab-good);background:var(--lab-good-soft)}.concept-sprint-choice.is-right .concept-sprint-mark,.concept-sprint-choice.is-right .concept-sprint-key{color:var(--lab-good-ink);border-color:var(--lab-good)}.concept-sprint-card.is-correct~.concept-sprint-choices .concept-sprint-choice.is-right{animation:.32s ease-out concept-sprint-pop}.concept-sprint-choice.is-picked-wrong{border-color:var(--lab-danger);background:var(--lab-danger-soft);animation:.28s ease-in-out concept-sprint-shake}.concept-sprint-choice.is-picked-wrong .concept-sprint-mark{color:var(--lab-danger-ink)}.concept-sprint-choice.is-dim,.concept-sprint-choice.is-dim:disabled{opacity:.55}.concept-sprint-feedback{gap:var(--lab-sp-4);padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm);font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);justify-items:start;display:grid}.concept-sprint-feedback p{margin:0}.concept-sprint-feedback.is-correct{border-left:3px solid var(--lab-good);background:var(--lab-good-soft)}.concept-sprint-feedback.is-correct strong{color:var(--lab-good-ink)}.concept-sprint-feedback.is-wrong{border-left:3px solid var(--lab-danger);background:var(--lab-danger-soft)}.concept-sprint-feedback.is-wrong strong{color:var(--lab-danger-ink)}.concept-sprint-issues{padding:var(--lab-sp-8) var(--lab-sp-12);border-left:3px solid var(--lab-danger);border-radius:var(--lab-r-sm);background:var(--lab-danger-soft);color:var(--lab-danger-ink);font-size:var(--lab-t-sm)}.concept-sprint-issues ul{margin:var(--lab-sp-4) 0 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.lab-chip:first-of-type{margin-inline-start:auto}}.finance-figure-row{align-items:stretch;gap:var(--lab-sp-12);flex-wrap:wrap;display:flex}.finance-plot-region{flex:999 18.75rem;min-width:16.25rem}.compound-snowball{padding:var(--lab-sp-8) var(--lab-sp-6);border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg);flex:1 0 10.5rem;align-content:center;justify-items:center;display:grid}.finance-svg-animated{transition:r var(--lab-dur-slow) var(--lab-ease)}.finance-svg-halo{paint-order:stroke;stroke:var(--stage-bg);stroke-width:3px;stroke-linejoin:round}.finance-svg-halo[data-emphasis=strong]{stroke-width:4px}.finance-concept-stack{gap:var(--lab-sp-6);font-size:var(--lab-t-eyebrow);display:grid}.finance-concept-highlight{font-size:var(--lab-t-sm);text-align:center}.finance-concept-warn{color:var(--stage-warn,#e0a020)}.finance-comparison-panel{padding:var(--lab-sp-8) 2px 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0;background:var(--charge-color);opacity:.35}.finance-charge-column[data-active=true] .finance-charge-bar{opacity:1}.finance-figure-stack{gap:var(--lab-sp-8);display:grid}.finance-asset-summary{align-items:center;gap:var(--lab-sp-12);padding:var(--lab-sp-6) 2px 0;font-size:var(--lab-t-eyebrow);display:flex}.finance-aside-copy{color:var(--stage-muted);font-size:var(--lab-t-eyebrow);margin:2px 2px 0}.finance-statement-grid{gap:var(--lab-sp-12);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.finance-statement-card{padding:var(--lab-sp-12) var(--lab-sp-14);border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg)}.finance-statement-card-linked{border-color:var(--stage-good,#16a34a)}.finance-statement-heading{margin-bottom:var(--lab-sp-6);color:var(--stage-muted);font-size:var(--lab-t-micro);font-weight:var(--lab-w-bold)}.finance-statement-row{padding:var(--lab-sp-2) 0;color:var(--stage-fg);font-size:var(--lab-t-eyebrow);font-variant-numeric:tabular-nums;justify-content:space-between;display:flex}.finance-statement-row[data-bold=true]{font-weight:var(--lab-w-bold)}.finance-statement-row[data-divided=true]{border-top:1px solid var(--stage-grid)}.finance-statement-row[data-tone=good],.finance-statement-link,.finance-statement-balance{color:var(--stage-good,#16a34a)}.finance-statement-row[data-tone=danger]{color:var(--stage-danger,#e03131)}.finance-statement-link{margin-top:var(--lab-sp-8);font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold)}.finance-statement-balance{margin-top:var(--lab-sp-6);font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold)}.finance-ratio-list{gap:var(--lab-sp-8);padding:var(--lab-sp-16);border:1px solid var(--stage-grid);border-radius:var(--lab-r-md);background:var(--stage-bg);display:grid}.finance-ratio-row{align-items:center;gap:var(--lab-sp-12);font-size:var(--lab-t-eyebrow);font-variant-numeric:tabular-nums;display:flex}.finance-ratio-name{width:8.75rem;color:var(--stage-fg)}.finance-ratio-fill{width:var(--finance-meter);height:100%;display:block}.finance-ratio-row[data-tone=good] .finance-ratio-fill{background:var(--stage-good,#16a34a)}.finance-ratio-row[data-tone=warn] .finance-ratio-fill{background:var(--stage-warn,#e0a020)}.finance-ratio-row[data-tone=danger] .finance-ratio-fill{background:var(--stage-danger,#e03131)}.finance-ratio-value{text-align:right;width:3.5rem;font-weight:var(--lab-w-semibold)}.finance-ratio-row[data-tone=good] .finance-ratio-value{color:var(--stage-good,#16a34a)}.finance-ratio-row[data-tone=warn] .finance-ratio-value{color:var(--stage-warn,#e0a020)}.finance-ratio-row[data-tone=danger] .finance-ratio-value{color:var(--stage-danger,#e03131)}.books-avatar{border-radius:var(--lab-r-pill);font-weight:var(--lab-w-bold);letter-spacing:var(--lab-ls-caps);color:var(--books-avatar,var(--lab-accent));background:var(--books-avatar,var(--lab-accent));flex:none;place-items:center;display:inline-grid}@supports (color:color-mix(in lab, red, red)){.books-avatar{background:color-mix(in oklab, var(--books-avatar,var(--lab-accent)) 14%, var(--lab-surface))}}.books-avatar{box-shadow:inset 0 0 0 2px var(--books-avatar,var(--lab-accent))}@supports (color:color-mix(in lab, red, red)){.books-avatar{box-shadow:inset 0 0 0 2px color-mix(in oklab, var(--books-avatar,var(--lab-accent)) 55%, transparent)}}.books-beat{gap:var(--lab-sp-10);align-items:flex-start;margin:0;display:flex}.books-beat figcaption{gap:var(--lab-sp-2);padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm) var(--lab-r-md) var(--lab-r-md) var(--lab-r-md);background:var(--lab-sunken);line-height:var(--lab-lh-ui);display:grid}.books-beat-name{font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold)}.books-beat-name em{font-style:normal;font-weight:var(--lab-w-regular);color:var(--lab-muted)}.books-beat-line{font-size:var(--lab-t-sm)}.books-doc{--books-paper:#f6eedc;gap:var(--lab-sp-6);max-width:22rem;padding:var(--lab-sp-12) var(--lab-sp-14);border:1px solid var(--lab-border-strong);border-radius:var(--lab-r-xs);background:var(--books-paper);color:#1c222b;color:lab(12.9118% -.603847 -7.27841);font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);box-shadow:0 1px 0 var(--lab-border), 0 6px 14px -10px #00000059;display:grid}@supports (color:lab(0% 0 0)){.books-doc{--books-paper:lab(94.2935% .832737 9.61531);box-shadow:0 1px 0 var(--lab-border), 0 6px 14px -10px lab(0% 0 0/.35)}}.books-doc header{justify-content:space-between;align-items:baseline;gap:var(--lab-sp-8);padding-bottom:var(--lab-sp-6);text-transform:uppercase;letter-spacing:var(--lab-ls-caps);border-bottom:2px solid;display:flex}.books-doc-ref{font-family:ui-monospace,monospace;font-size:var(--lab-t-eyebrow);text-transform:none}.books-doc-meta{gap:0 var(--lab-sp-10);grid-template-columns:auto 1fr;margin:0;display:grid}.books-doc-meta dt{color:#4f5661;color:lab(36.1243% -.829309 -7.36671)}.books-doc-meta dd{font-weight:var(--lab-w-medium);margin:0}.books-doc-items{border-collapse:collapse;width:100%}.books-doc-items td{padding:var(--lab-sp-2) 0;border-bottom:1px dotted #79818d80;border-bottom:1px dotted lab(53.5281% -.898093 -7.39828/.5)}.books-doc-items td:last-child,.books-doc-total strong{text-align:right;font-variant-numeric:tabular-nums}.books-doc-total{font-size:var(--lab-t-body);justify-content:space-between;margin:0;display:flex}.books-doc-note{color:#414853;color:lab(30.3224% -.794604 -7.35166);margin:0;font-style:italic}.books-doc[data-kind=cheque-counterfoil],.books-doc[data-kind=paying-in-slip]{border-left:6px double #397a97;border-left:6px double lab(48.0007% -14.5344 -22.4605)}.books-doc[data-kind=credit-note] header{color:#b02a2d;color:lab(40.2801% 53.7849 33.3129)}.books-doc.is-compact{max-width:16rem;padding:var(--lab-sp-8) var(--lab-sp-10)}.books-eq{align-items:center;gap:var(--lab-sp-6) var(--lab-sp-8);font-variant-numeric:tabular-nums;flex-wrap:wrap;display:flex}.books-eq span{padding:var(--lab-sp-4) var(--lab-sp-8);border-radius:var(--lab-r-sm);background:var(--lab-sunken);font-weight:var(--lab-w-semibold);display:grid}.books-eq small{font-size:var(--lab-t-micro);font-weight:var(--lab-w-medium);color:var(--lab-muted);text-transform:uppercase;letter-spacing:var(--lab-ls-caps)}.books-eq [data-cat=asset]{box-shadow:inset 3px 0 0 var(--lab-good)}.books-eq [data-cat=liability]{box-shadow:inset 3px 0 0 var(--lab-danger)}.books-eq [data-cat=equity]{box-shadow:inset 3px 0 0 var(--lab-accent)}.books-eq [data-cat=income]{box-shadow:inset 3px 0 0 var(--lab-formula)}.books-eq em{font-style:normal;font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold)}.books-eq.is-level em{color:var(--lab-good)}.books-eq.is-tilted em{color:var(--lab-danger)}.books-entry{gap:var(--lab-sp-6);display:grid}.books-entry-head,.books-entry-row{gap:var(--lab-sp-6);grid-template-columns:auto minmax(0,1fr) 6.5rem auto;align-items:center;display:grid}.books-entry-head{font-size:var(--lab-t-micro);color:var(--lab-muted);text-transform:uppercase;letter-spacing:var(--lab-ls-caps)}.books-entry-row.is-credit .books-entry-account{margin-left:var(--lab-sp-16);width:calc(100% - var(--lab-sp-16))}.books-entry-account,.books-entry-amount{width:100%;min-width:0}.books-entry-row.is-wrong{border-radius:var(--lab-r-sm);box-shadow:0 0 0 2px var(--lab-danger)}@supports (color:color-mix(in lab, red, red)){.books-entry-row.is-wrong{box-shadow:0 0 0 2px color-mix(in oklab, var(--lab-danger) 55%, transparent)}}.books-entry-amount{text-align:right;font-variant-numeric:tabular-nums}.books-entry-add{justify-self:start}@media (max-width:480px){.books-entry-head{display:none}.books-entry-row{grid-template-columns:auto minmax(0,1fr) auto}.books-entry-amount{grid-column:2}.books-entry-row.is-credit .books-entry-account{margin-left:0}}.lab-streak{align-items:center;gap:var(--lab-sp-10);font-size:var(--lab-t-sm);font-variant-numeric:tabular-nums;display:flex;position:relative}.lab-streak-flame{font-weight:var(--lab-w-bold);transition:transform var(--lab-dur-fast) var(--lab-ease)}.lab-streak-flame.is-hot{color:var(--lab-warn-fg);transform:scale(1.12)}.lab-streak-best{color:var(--lab-muted)}.lab-streak-progress{border-radius:var(--lab-r-pill);background:var(--lab-sunken);flex:1;min-width:4rem;height:6px;overflow:hidden}.lab-streak-progress>span{background:var(--lab-accent);height:100%;transition:width var(--lab-dur-base) var(--lab-ease);display:block}.lab-round-result{gap:var(--lab-sp-8);padding:var(--lab-sp-16);border-radius:var(--lab-r-md);background:var(--lab-sunken);text-align:center;justify-items:center;display:grid;position:relative}.lab-round-result p{margin:0}.lab-round-stars{gap:var(--lab-sp-6);font-size:var(--lab-t-display);line-height:var(--lab-lh-tight);color:var(--lab-border-strong);display:flex}.lab-round-stars .is-on{color:var(--lab-warn)}.lab-round-missed{font-size:var(--lab-t-sm);text-align:left}.lab-round-missed ul{margin:var(--lab-sp-4) 0 0;padding-left:var(--lab-sp-20)}.books-desk{gap:var(--lab-sp-12);display:grid}.books-desk-tray{gap:var(--lab-sp-6);justify-items:start;animation:.26s ease-out books-doc-in;display:grid}.books-desk-count{font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);color:var(--lab-muted);text-transform:uppercase;letter-spacing:var(--lab-ls-caps)}.books-desk-narration{font-weight:var(--lab-w-medium);margin:0}.books-desk-actions{gap:var(--lab-sp-8);flex-wrap:wrap;align-items:center;display:flex}.books-desk-hint{padding:var(--lab-sp-8) var(--lab-sp-10);border-left:3px solid var(--lab-accent);background:var(--lab-sunken);font-size:var(--lab-t-sm);margin:0}.books-desk-issues,.books-desk-why{margin:var(--lab-sp-4) 0 0;padding-left:var(--lab-sp-20);line-height:var(--lab-lh-prose)}.books-desk-done{gap:var(--lab-sp-12);display:grid}.books-desk-tb{text-align:center;font-variant-numeric:tabular-nums;margin:0}@keyframes books-doc-in{0%{opacity:0;transform:translateY(8px)rotate(-1deg)}to{opacity:1;transform:none}}.books-sprint{gap:var(--lab-sp-12);width:100%;max-width:440px;margin-inline:auto;display:grid}.books-sprint .cat-asset{--books-sprint-cat:var(--lab-good)}.books-sprint .cat-liability{--books-sprint-cat:var(--lab-danger)}.books-sprint .cat-equity{--books-sprint-cat:var(--lab-accent)}.books-sprint .cat-income{--books-sprint-cat:var(--lab-formula)}.books-sprint .cat-expense{--books-sprint-cat:var(--lab-warn)}.books-sprint-card{gap:var(--lab-sp-10);padding:var(--lab-sp-12) var(--lab-sp-14);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-surface);transition:border-color var(--lab-dur-fast) var(--lab-ease), box-shadow var(--lab-dur-fast) var(--lab-ease);flex-wrap:wrap;align-items:flex-start;animation:.22s ease-out books-sprint-in;display:flex;box-shadow:0 8px 18px -14px #00000073;box-shadow:0 8px 18px -14px lab(0% 0 0/.45)}.books-sprint-card.is-correct{border-color:var(--lab-good)}@supports (color:color-mix(in lab, red, red)){.books-sprint-card.is-correct{border-color:color-mix(in oklab, var(--lab-good) 60%, transparent)}}.books-sprint-card.is-correct{box-shadow:0 0 0 3px var(--lab-good-soft)}.books-sprint-card.is-wrong{border-color:var(--lab-danger)}@supports (color:color-mix(in lab, red, red)){.books-sprint-card.is-wrong{border-color:color-mix(in oklab, var(--lab-danger) 50%, transparent)}}.books-sprint-prompt{gap:var(--lab-sp-4);flex:11rem;min-width:0;display:grid}.books-sprint-date{padding:var(--lab-sp-2) var(--lab-sp-8);border-radius:var(--lab-r-pill);background:var(--lab-sunken);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);color:var(--lab-muted);justify-self:start}.books-sprint-narration{font-size:var(--lab-t-lg);font-weight:var(--lab-w-semibold);line-height:var(--lab-lh-title);margin:0}.books-sprint-amount{font-size:var(--lab-t-title);font-weight:var(--lab-w-bold);font-variant-numeric:tabular-nums}.books-sprint-card .books-doc.is-compact{flex:0 13rem}.books-sprint-slots{gap:var(--lab-sp-8);grid-template-columns:1fr 1fr;display:grid}.books-sprint-slot.books-sprint-slot{justify-items:start;gap:var(--lab-sp-2);height:auto;min-height:3.5rem;padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-md);text-align:left;white-space:normal;border-style:dashed;display:grid}.books-sprint-slot:disabled{opacity:1}.books-sprint-slot-side{font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-bold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;color:var(--lab-muted)}.books-sprint-slot-name{font-weight:var(--lab-w-semibold)}.books-sprint-slot.is-empty .books-sprint-slot-name{color:var(--lab-muted)}.books-sprint-slot.is-next{border-color:var(--lab-accent);background:var(--lab-accent-faint)}.books-sprint-slot.is-next .books-sprint-slot-name{color:var(--lab-accent);font-weight:var(--lab-w-medium)}.books-sprint-slot.is-filled{box-shadow:inset 4px 0 0 var(--books-sprint-cat,var(--lab-accent));border-style:solid}.books-sprint-slot.is-good{border-style:solid;border-color:var(--lab-good);background:var(--lab-good-soft)}.books-sprint-slot.is-bad{border-style:solid;border-color:var(--lab-danger);background:var(--lab-danger-soft);animation:.28s ease-in-out books-sprint-shake}.books-sprint-feedback{padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm);font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);margin:0}.books-sprint-feedback.is-wrong{border-left:3px solid var(--lab-danger);background:var(--lab-danger-soft);color:var(--lab-danger-ink)}.books-sprint-feedback.is-correct{gap:var(--lab-sp-4);border-left:3px solid var(--lab-good);background:var(--lab-good-soft);justify-items:start;display:grid}.books-sprint-feedback.is-correct strong{color:var(--lab-good-ink)}.books-sprint-feedback ul{padding-left:var(--lab-sp-16);font-size:var(--lab-t-eyebrow);color:var(--lab-muted);margin:0}.books-sprint-rack{gap:var(--lab-sp-6);flex-wrap:wrap;display:flex}.books-sprint-chip.books-sprint-chip{gap:var(--lab-sp-6);border-color:var(--books-sprint-cat,var(--lab-border))}@supports (color:color-mix(in lab, red, red)){.books-sprint-chip.books-sprint-chip{border-color:color-mix(in oklab, var(--books-sprint-cat,var(--lab-border)) 35%, var(--lab-border))}}.books-sprint-chip[data-sel=true]{background:var(--books-sprint-cat,var(--lab-accent))}@supports (color:color-mix(in lab, red, red)){.books-sprint-chip[data-sel=true]{background:color-mix(in oklab, var(--books-sprint-cat,var(--lab-accent)) 16%, var(--lab-surface))}}.books-sprint-chip[data-sel=true]{border-color:var(--books-sprint-cat,var(--lab-accent))}.books-sprint-dot{border-radius:var(--lab-r-pill);background:var(--books-sprint-cat,var(--lab-muted));flex:none;width:8px;height:8px}.books-sprint-badge{padding:0 var(--lab-sp-4);border-radius:var(--lab-r-xs);background:var(--books-sprint-cat,var(--lab-accent));color:var(--lab-surface);font-size:var(--lab-t-micro);font-weight:var(--lab-w-bold)}.books-sprint-empty{color:var(--lab-muted);margin:0}@keyframes books-sprint-in{0%{opacity:0;transform:translate(18px)}to{opacity:1;transform:none}}@keyframes books-sprint-shake{0%,to{transform:none}25%{transform:translate(-4px)}75%{transform:translate(4px)}}.books-balance-dock{gap:var(--lab-sp-10);display:grid}.books-balance-step{gap:var(--lab-sp-8);justify-items:start;display:grid}.books-balance-ask,.books-balance-note{font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);margin:0}.books-balance-note{color:var(--lab-muted);font-variant-numeric:tabular-nums}.books-balance-pair{gap:var(--lab-sp-8);grid-template-columns:repeat(2,minmax(0,1fr));width:100%;max-width:22rem;display:grid}.books-balance-field{gap:var(--lab-sp-2);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-medium);color:var(--lab-muted);display:grid}.books-balance-input{min-height:var(--lab-target,2.75rem);font-variant-numeric:tabular-nums;text-align:right;max-width:11rem}.books-balance-input[aria-invalid=true]{border-color:var(--lab-danger);box-shadow:0 0 0 1px var(--lab-danger)}.books-balance-row{align-items:center;gap:var(--lab-sp-8);font-size:var(--lab-t-sm);flex-wrap:wrap;display:flex}.books-balance-sides{gap:var(--lab-sp-4);display:inline-flex}.books-balance-side{min-width:var(--lab-target,2.75rem);min-height:var(--lab-target,2.75rem);font-weight:var(--lab-w-semibold)}.books-balance-said{padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm);font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);background:var(--lab-sunken);margin:0}.books-balance-said[data-tone=error]{background:var(--lab-danger-soft);color:var(--lab-danger-ink)}.books-balance-said[data-tone=success]{background:var(--lab-good-soft);color:var(--lab-good-ink)}.books-balance-finale{gap:var(--lab-sp-4);padding:var(--lab-sp-12) var(--lab-sp-14);border-radius:var(--lab-r-md);background:var(--lab-good-soft);animation:books-balance-rise var(--lab-dur-slow) var(--lab-ease) both;display:grid}.books-balance-finale p{margin:0}.books-balance-finale-line{font-weight:var(--lab-w-semibold);color:var(--lab-good-ink)}.books-balance-finale-remark{font-size:var(--lab-t-sm)}.books-balance-finale-remark[data-normal=false]{color:var(--lab-warn-ink)}.books-balance-half{transition:fill var(--lab-dur-fast) var(--lab-ease)}.fig-action:hover .books-balance-half,.fig-action:focus-visible .books-balance-half{fill:var(--fig-hue-1)}@supports (color:color-mix(in lab, red, red)){.fig-action:hover .books-balance-half,.fig-action:focus-visible .books-balance-half{fill:color-mix(in oklab, var(--fig-hue-1) 10%, transparent)}}.books-balance-half[data-wrong]{animation:books-balance-shake .32s var(--lab-ease)}.books-balance-figure[role=group] .fig-text{pointer-events:none}.books-balance-slot{opacity:.75}.books-balance-slide{animation:books-balance-slide-in .5s var(--lab-ease-spring,var(--lab-ease)) both}.books-balance-slide[data-from=debit]{animation-name:books-balance-slide-in-left}.books-balance-pop{transform-box:fill-box;transform-origin:50%;animation:books-balance-pop .45s var(--lab-ease-spring,var(--lab-ease)) .15s both}.books-balance-rule{stroke-dasharray:1;stroke-dashoffset:1px;animation:books-balance-draw .4s var(--lab-ease) .35s forwards}.books-balance-run-wrap{max-width:100%;overflow-x:auto}.books-balance-run{border-collapse:collapse;width:100%;font-size:var(--lab-t-sm);font-variant-numeric:tabular-nums}.books-balance-run th{padding:var(--lab-sp-6) var(--lab-sp-6);border-bottom:2px solid var(--lab-border-strong);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);color:var(--lab-muted);text-align:left}.books-balance-run td{padding:var(--lab-sp-6);border-bottom:1px solid var(--lab-border);vertical-align:middle}.books-balance-run .is-num{text-align:right;white-space:nowrap}.books-balance-run tr[data-state=active] td{background:var(--lab-accent-faint,var(--lab-sunken))}.books-balance-run tr[data-state=wrong] td:last-child{box-shadow:inset 3px 0 0 var(--lab-danger)}.books-balance-run tr.is-opening td{color:var(--lab-muted)}.books-balance-run-entry{justify-content:flex-end;align-items:center;gap:var(--lab-sp-4);flex-wrap:wrap;display:flex}.books-balance-run-entry .books-balance-input{width:6.5rem}.books-balance-cell{font-weight:var(--lab-w-semibold);display:inline-block}.books-balance-cell.is-waiting{color:var(--lab-muted);font-weight:var(--lab-w-regular)}.books-balance-pop-in{animation:books-balance-rise var(--lab-dur-base,.3s) var(--lab-ease) both;color:var(--lab-good-ink)}@keyframes books-balance-slide-in{0%{opacity:0;transform:translate(28px)}to{opacity:1;transform:none}}@keyframes books-balance-slide-in-left{0%{opacity:0;transform:translate(-28px)}to{opacity:1;transform:none}}@keyframes books-balance-pop{0%{opacity:0;transform:scale(.6)}70%{opacity:1;transform:scale(1.12)}to{opacity:1;transform:none}}@keyframes books-balance-draw{to{stroke-dashoffset:0}}@keyframes books-balance-rise{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}@keyframes books-balance-shake{25%{transform:translate(-3px)}75%{transform:translate(3px)}}@media (max-width:30rem){.books-balance-pair{grid-template-columns:minmax(0,1fr)}}.books-detective-board{gap:var(--lab-sp-12);align-items:start;display:grid}@media (min-width:56rem){.books-detective-board{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr)}}.books-detective-journal{gap:var(--lab-sp-8);font-weight:var(--lab-w-regular);display:grid}.books-detective-journal ol{gap:var(--lab-sp-4);margin:0;padding:0;list-style:none;display:grid}.books-detective-row{gap:var(--lab-sp-2) var(--lab-sp-8);width:100%;padding:var(--lab-sp-6) var(--lab-sp-10);border:1px solid var(--lab-border);border-radius:var(--lab-r-sm);background:var(--lab-surface);color:inherit;font:inherit;font-size:var(--lab-t-sm);text-align:left;cursor:pointer;grid-template-columns:3.5rem minmax(0,1fr) auto;align-items:baseline;display:grid}.books-detective-row:hover{border-color:var(--lab-border-strong)}.books-detective-row:focus-visible{outline:2px solid var(--lab-accent);outline-offset:2px}.books-detective-row[aria-pressed=true]{border-color:var(--lab-accent);box-shadow:inset 3px 0 0 var(--lab-accent)}.books-detective-row[data-status=flag]{box-shadow:inset 3px 0 0 var(--lab-warn)}.books-detective-row[data-status=done]{box-shadow:inset 3px 0 0 var(--lab-good)}.books-detective-date{color:var(--lab-muted);font-size:var(--lab-t-eyebrow)}.books-detective-amount{font-variant-numeric:tabular-nums;font-weight:var(--lab-w-semibold)}.books-detective-badge{padding:0 var(--lab-sp-6);border-radius:var(--lab-r-pill);background:var(--lab-sunken);font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;grid-column:2/-1;justify-self:start}.books-detective-row[data-status=done] .books-detective-badge{color:var(--lab-good)}.books-detective-row[data-status=flag] .books-detective-badge{color:var(--lab-warn-fg,var(--lab-warn))}.books-detective-missing{justify-self:start}.books-detective-desk{gap:var(--lab-sp-10);padding:var(--lab-sp-12);border:1px solid var(--lab-border);border-radius:var(--lab-r-md);background:var(--lab-sunken);font-weight:var(--lab-w-regular);display:grid}.books-detective-desk h4{font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold);margin:0}.books-detective-desk h4:focus-visible{outline:2px solid var(--lab-accent);outline-offset:2px}.books-detective-desk.is-empty{color:var(--lab-muted)}.books-detective-compare{gap:var(--lab-sp-12);display:grid}@media (min-width:40rem){.books-detective-compare{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}.books-detective-compare>div{gap:var(--lab-sp-6);align-content:start;min-width:0;display:grid}.books-detective-label{font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;color:var(--lab-muted)}.books-detective-lines,.books-detective-tb table,.books-detective-summary{border-collapse:collapse;width:100%;font-size:var(--lab-t-sm);font-variant-numeric:tabular-nums}.books-detective-lines th,.books-detective-lines td,.books-detective-tb th,.books-detective-tb td,.books-detective-summary th,.books-detective-summary td{padding:var(--lab-sp-4) var(--lab-sp-6);border-bottom:1px solid var(--lab-border);text-align:left;vertical-align:top}.books-detective-lines td+td,.books-detective-lines th+th,.books-detective-tb td+td,.books-detective-tb th+th{text-align:right}.books-detective-lines th,.books-detective-tb thead th,.books-detective-summary thead th{font-size:var(--lab-t-micro);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;color:var(--lab-muted)}.books-detective-lines tr.is-credit td:first-child{padding-left:var(--lab-sp-20)}.books-detective-none,.books-detective-note{font-size:var(--lab-t-sm);color:var(--lab-muted);margin:0}.books-detective-prompt{font-weight:var(--lab-w-semibold);margin:0}.books-detective-actions,.books-detective-chips{gap:var(--lab-sp-6);flex-wrap:wrap;display:flex}.books-detective-kinds,.books-detective-fix{gap:var(--lab-sp-8);display:grid}.books-detective-family{gap:var(--lab-sp-6);padding:var(--lab-sp-8) var(--lab-sp-10);border:1px solid var(--lab-border);border-radius:var(--lab-r-sm);margin:0;display:grid}.books-detective-family legend{padding:0 var(--lab-sp-4);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold)}.books-detective-tried{opacity:.55;text-decoration:line-through}.books-detective-closed{gap:var(--lab-sp-6);font-size:var(--lab-t-sm);display:grid}.books-detective-closed p{margin:0}.books-detective-tray{gap:var(--lab-sp-4);margin:0;padding:0;list-style:none;display:grid}.books-detective-tray-doc{white-space:normal;text-align:left;justify-content:flex-start;width:100%;height:auto}.books-detective-nine{padding:var(--lab-sp-8) var(--lab-sp-12);border-radius:var(--lab-r-sm);background:var(--lab-warn);margin:0}@supports (color:color-mix(in lab, red, red)){.books-detective-nine{background:color-mix(in oklab, var(--lab-warn) 12%, var(--lab-surface))}}.books-detective-nine{font-size:var(--lab-t-sm);font-weight:var(--lab-w-regular)}.books-detective-tb{font-weight:var(--lab-w-regular)}.books-detective-tb summary{cursor:pointer;font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold)}.books-detective-tb tfoot th,.books-detective-tb tfoot td{font-weight:var(--lab-w-bold);border-bottom:3px double var(--lab-border-strong)}.books-detective-tb .books-detective-suspense th,.books-detective-tb .books-detective-suspense td{font-weight:var(--lab-w-regular);color:var(--lab-muted);border-bottom:0}.books-detective-finale{gap:var(--lab-sp-10);padding:0 var(--lab-sp-12) var(--lab-sp-12);display:grid;position:relative}.books-detective-stars{align-items:center;gap:var(--lab-sp-6);font-size:var(--lab-t-sm);display:flex}.books-detective-stars span[aria-hidden]{font-size:var(--lab-t-display);line-height:var(--lab-lh-tight);color:var(--lab-border-strong)}.books-detective-stars .is-on{color:var(--lab-warn)}.books-detective-summary caption{text-align:left;font-weight:var(--lab-w-semibold);padding-bottom:var(--lab-sp-4)}@media (max-width:36rem){.books-detective-summary thead{display:none}.books-detective-summary tr{padding:var(--lab-sp-6) 0;border-bottom:1px solid 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.lab-field-row{margin-block-start:var(--lab-sp-6)}.lab-exam-input{font-variant-numeric:tabular-nums;max-width:16rem}.lab-exam-unit{font-size:var(--lab-t-sm);color:var(--lab-muted)}.lab-exam-note,.lab-exam-verdict{font-size:var(--lab-t-sm);line-height:var(--lab-lh-ui);margin:0}.lab-exam-note{color:var(--lab-muted)}.lab-exam-verdict[data-tone=good]{color:var(--lab-good);font-weight:var(--lab-w-semibold)}.lab-exam-scheme{border:1px solid var(--lab-border);border-radius:var(--lab-r-sm);background:var(--lab-sunken);padding:var(--lab-sp-10);font-size:var(--lab-t-sm);margin-block-start:var(--lab-sp-6)}.lab-exam-scheme>summary{cursor:pointer;color:var(--lab-muted);font-size:var(--lab-t-eyebrow);text-transform:uppercase;letter-spacing:var(--lab-ls-caps)}.lab-exam-scheme[open]>summary{margin-block-end:var(--lab-sp-10)}.lab-exam-scheme ul{gap:var(--lab-sp-6);flex-direction:column;margin:0;padding-inline-start:var(--lab-sp-14);display:flex}.lab-exam-scheme li{line-height:var(--lab-lh-ui)}.lab-exam-question .lab-activity-workspace{padding:var(--lab-sp-16) var(--lab-sp-16) var(--lab-sp-14)}.lab-exam-question .lab-activity-description{max-width:70ch;color:var(--lab-fg);font-size:var(--lab-t-body);line-height:var(--lab-lh-prose)}.lab-exam-parts{gap:0}.lab-exam-part{gap:var(--lab-sp-10);padding-block:var(--lab-sp-16);border-inline-start:0;border-block-start:1px solid var(--lab-hairline);padding-inline-start:0}.lab-exam-part:first-child{border-block-start:0;padding-block-start:0}.lab-exam-part-head{align-items:baseline;gap:var(--lab-sp-8);grid-template-columns:2.75rem minmax(0,1fr) auto;display:grid}.lab-exam-label{font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums}.lab-exam-question .lab-exam-prompt{max-width:70ch}.lab-exam-part-head .lab-exam-marks{color:var(--lab-fg);font-size:var(--lab-t-body)}.lab-exam-part-body{justify-items:start;gap:var(--lab-sp-10);min-width:0;padding-inline-start:calc(2.75rem + var(--lab-sp-8));display:grid}.lab-exam-part-body>.lab-field-row{align-items:center;gap:var(--lab-sp-8);flex-wrap:wrap;margin:0;display:flex}.lab-exam-command{font-size:var(--lab-t-sm)}.lab-exam-command strong{font-weight:var(--lab-w-semibold);letter-spacing:0;text-transform:none}.lab-exam-reveal{color:var(--lab-accent);text-underline-offset:3px;text-decoration:underline}.lab-exam-verdict[data-tone=good]{color:var(--lab-good-ink)}.lab-exam-verdict[data-tone=warn]{color:var(--lab-warn-ink)}.lab-exam-verdict[data-tone=bad]{color:var(--lab-danger-ink)}.lab-exam-scheme{width:100%;max-width:40rem;padding:var(--lab-sp-10) 0 0;border:0;border-block-start:1px dashed var(--lab-border-strong);background:0 0;border-radius:0;margin:0}.lab-exam-scheme-title{margin:0 0 var(--lab-sp-8);color:var(--lab-fg);font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold)}.lab-exam-scheme ul{gap:var(--lab-sp-4);padding:0;list-style:none}.lab-exam-scheme li{gap:var(--lab-sp-12);font-size:var(--lab-t-sm);grid-template-columns:minmax(0,1fr) auto;display:grid}.lab-exam-scheme li .lab-exam-marks{color:var(--lab-fg)}@container lab-activity (max-width:30rem){.lab-exam-part-head{grid-template-columns:2.25rem minmax(0,1fr) auto}.lab-exam-part-body{padding-inline-start:0}}.lab-exam-note{justify-items:start;gap:var(--lab-sp-8);display:grid}.lab-exam-part-body .lab-exam-reveal{min-height:0;padding-inline:var(--lab-sp-2)}.lab-proof-claim{gap:var(--lab-sp-6);border-block-end:1px solid var(--lab-border);flex-direction:column;padding-block-end:var(--lab-sp-14);display:flex}.lab-proof-working{padding:var(--lab-sp-14) 0 0;gap:var(--lab-sp-10);flex-direction:column;margin:0;list-style:none;display:flex}.lab-proof-working li{align-items:baseline;gap:var(--lab-sp-10);opacity:.6;flex-wrap:wrap;display:flex}.lab-proof-working li[data-latest=true]{opacity:1}.lab-proof-move{font-size:var(--lab-t-eyebrow);color:var(--lab-muted)}.lab-proof-qed{margin:var(--lab-sp-14) 0 0;color:var(--lab-fg)}.lab-proof-choice{gap:var(--lab-sp-10);flex-direction:column;width:100%;display:flex}.lab-proof-menu{align-items:stretch;gap:var(--lab-sp-10);flex-direction:column;display:flex}.lab-proof-menu .lab-chip{text-align:start;white-space:normal;height:auto;padding-block:var(--lab-sp-10);justify-content:flex-start}.lab-practice-steps{gap:var(--lab-sp-6);flex-wrap:wrap;display:flex}.lab-practice-step{border:1.5px solid var(--lab-border);block-size:2rem;inline-size:2rem;color:var(--lab-fg);font-size:var(--lab-t-sm);font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums;cursor:pointer;background:0 0;border-radius:999px;padding:0}.lab-practice-step[aria-current=step]{border-color:var(--lab-fg)}.lab-practice-step[data-outcome=solved],.lab-practice-step[data-outcome=solved-with-hint]{background:var(--lab-good)}@supports (color:color-mix(in lab, red, red)){.lab-practice-step[data-outcome=solved],.lab-practice-step[data-outcome=solved-with-hint]{background:color-mix(in oklab, var(--lab-good) 18%, transparent)}}.lab-practice-step[data-outcome=solved],.lab-practice-step[data-outcome=solved-with-hint]{border-color:var(--lab-good)}.lab-practice-step[data-outcome=shown]{background:var(--lab-warn)}@supports (color:color-mix(in lab, red, red)){.lab-practice-step[data-outcome=shown]{background:color-mix(in oklab, var(--lab-warn) 16%, transparent)}}.lab-practice-step[data-outcome=shown]{border-color:var(--lab-warn)}.lab-practice-problem{gap:var(--lab-sp-10);border-inline-start:2px solid var(--lab-border);flex-direction:column;padding-inline-start:var(--lab-sp-14);display:flex}.lab-practice-head{align-items:baseline;gap:var(--lab-sp-10);font-size:var(--lab-t-body);display:flex}.lab-practice-level{font-size:var(--lab-t-eyebrow);letter-spacing:var(--lab-ls-caps);text-transform:uppercase;color:var(--lab-muted)}.lab-practice-level[data-level=stretch]{color:var(--lab-warn-fg)}.lab-practice-stem{line-height:var(--lab-lh-prose);margin:0}.lab-practice-hint{padding:var(--lab-sp-10);border-radius:var(--lab-r-sm);background:var(--lab-sunken);font-size:var(--lab-t-sm);margin:0}.lab-practice-working{padding:var(--lab-sp-10) var(--lab-sp-14);border-radius:var(--lab-r-sm);background:var(--lab-sunken);gap:var(--lab-sp-6);flex-direction:column;margin:0;list-style:inside decimal;display:flex}.lab-practice-working li{align-items:baseline;gap:var(--lab-sp-6) var(--lab-sp-10);flex-wrap:wrap;display:flex}.lab-practice-note{color:var(--lab-muted);font-size:var(--lab-t-sm)}.lab-practice-next{justify-content:flex-end;display:flex}.lab-practice-choices{gap:var(--lab-sp-6);flex-wrap:wrap;display:flex}.lab-practice-choices [data-state=correct]{border-color:var(--lab-good);background:var(--lab-good)}@supports (color:color-mix(in lab, red, red)){.lab-practice-choices [data-state=correct]{background:color-mix(in oklab, var(--lab-good) 14%, transparent)}}.lab-practice-choices [data-state=wrong]{border-color:var(--lab-danger);opacity:.75;text-decoration:line-through}.lang-lab{max-width:min(100%,46rem);margin-inline:auto;position:relative}.lang-sentence,.lang-listen-play,.lang-dictation-foot,.lang-bank,.lang-line{justify-content:center}.lang-cloze,.lang-errsentence,.lang-why{text-align:center}.lang-match{margin-inline:auto}.lang-lab .lab-misconception{width:fit-content;margin-inline:auto;display:flex}.lang-hint{font-size:var(--lab-t-sm);color:var(--lab-muted);margin:0 0 var(--lab-sp-10)}.lang-prompt{font-size:var(--lab-t-lg);font-weight:var(--lab-w-medium);margin:0 0 var(--lab-sp-12);color:var(--lab-fg)}.lang-tile{padding:var(--lab-sp-8) var(--lab-sp-14);border-radius:var(--lab-r-md);background:var(--pos,var(--lang-pos-other));color:var(--lab-accent-fg);font-weight:var(--lab-w-semibold);font-size:var(--lab-t-body);line-height:var(--lab-lh-title);cursor:pointer;box-shadow:var(--lab-elevation-control);transition:transform var(--lab-dur-fast), filter var(--lab-dur-fast), box-shadow var(--lab-dur-fast);border:0;flex-direction:column;align-items:center;gap:1px;display:inline-flex}@media (hover:hover) and (pointer:fine){.lang-tile:hover:not(:disabled){filter:brightness(1.08);box-shadow:var(--lab-elevation-raised);transform:translateY(-1px)}}.lang-tile:active:not(:disabled){box-shadow:var(--lab-elevation-pressed);transform:translateY(1px)}.lang-tile[data-sel=true]{box-shadow:0 0 0 2px var(--pos), var(--lab-elevation-control)}@supports (color:color-mix(in lab, red, red)){.lang-tile[data-sel=true]{box-shadow:0 0 0 2px color-mix(in oklab, var(--pos) 48%, transparent), var(--lab-elevation-control)}}.lang-tile[data-dim=true]{opacity:.4}.lang-tile-text{font-size:var(--lab-t-body)}.lang-tile-gloss{font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-medium);opacity:.82}.lang-line{gap:var(--lab-sp-8);min-height:56px;padding:var(--lab-sp-12);border-radius:var(--lab-r-lg);border:2px dashed var(--lab-border-strong);background:var(--lab-sunken);transition:border-color var(--lab-dur-fast), background var(--lab-dur-fast);flex-wrap:wrap;align-items:center;display:flex}.lang-line[data-state=ok]{border-style:solid;border-color:var(--lab-good);background:var(--lab-good-soft)}.lang-line[data-state=no]{border-color:var(--lab-danger)}.lang-line-empty{font-size:var(--lab-t-sm);color:var(--lab-muted)}.lang-bank{gap:var(--lab-sp-8);margin-top:var(--lab-sp-12);flex-wrap:wrap;display:flex}.lang-speak{border-radius:var(--lab-r-pill);background:currentColor;border:0;justify-content:center;align-items:center;width:26px;height:26px;margin-inline-start:2px;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.lang-speak{background:color-mix(in oklab, currentColor 12%, transparent)}}.lang-speak{color:inherit;font-size:var(--lab-t-sm);cursor:pointer;transition:background var(--lab-dur-fast)}@media (hover:hover) and (pointer:fine){.lang-speak:hover{background:var(--lab-accent)}@supports (color:color-mix(in lab, red, red)){.lang-speak:hover{background:color-mix(in oklab, var(--lab-accent) 22%, transparent)}}}.lang-match{gap:var(--lab-sp-10) var(--lab-sp-24);grid-template-columns:1fr 1fr;max-width:520px;display:grid}.lang-col{gap:var(--lab-sp-8);flex-direction:column;display:flex}.lang-match-row{align-items:center;display:flex;position:relative}.lang-match-row .lang-match-cell{flex:1;padding-inline-end:40px}.lang-match-row .lang-speak{margin:0;position:absolute;inset-block-start:50%;inset-inline-end:var(--lab-sp-8);transform:translateY(-50%)}.lang-cell-sub{font-size:var(--lab-t-eyebrow);color:var(--lab-muted);font-weight:var(--lab-w-regular)}.lang-cell-icon{font-size:36px;line-height:var(--lab-lh-tight)}.lang-icon-image{object-fit:contain}.lang-icon-svg{display:inline-flex}@keyframes lang-shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}.language-activity .lab-activity-status{justify-content:flex-start}.language-activity .lab-activity-workspace{padding:clamp(.75rem,2.2vw,1.25rem)}.language-activity .lab-activity-canvas{align-content:start}.language-activity-support{padding:0 var(--lab-sp-16) var(--lab-sp-14)}.language-activity-support>.lab-challenge{margin:0}.language-activity .lab-activity-transport{flex-wrap:wrap;justify-content:center;min-height:4rem;display:flex}.language-activity .lab-activity-transport .lab-btn,.language-activity .lang-audio-action{border-radius:var(--lab-r-md)}.lang-audio-action{justify-content:center;align-items:center;gap:var(--lab-sp-8);min-height:var(--lab-target);padding-inline:var(--lab-sp-16);display:inline-flex}.lang-listen-play{margin:0 0 var(--lab-sp-16);justify-content:center;display:flex}.lang-listen-play .lang-audio-action{min-width:8.5rem}.lang-listening-choices .lab-choices{justify-content:center}.lang-listening-choices[data-layout=picture] .lab-choice{min-width:5rem;min-height:4.5rem}@container lab-activity (max-width:42.5rem){.language-activity .lab-activity-workspace{padding:var(--lab-sp-12)}.language-activity-support{padding-inline:var(--lab-sp-12)}.language-activity .lang-match{gap:var(--lab-sp-8)}.language-activity .lang-match-cell{padding-inline:var(--lab-sp-14)}}.lang-sentence{align-items:center;gap:var(--lab-sp-8);font-size:var(--lab-t-title);font-weight:var(--lab-w-medium);color:var(--lab-fg);margin:var(--lab-sp-6) 0 var(--lab-sp-16);flex-wrap:wrap;display:flex}.lang-cloze{font-size:var(--lab-t-lg);line-height:2.4;font-weight:var(--lab-w-medium);color:var(--lab-fg);margin:var(--lab-sp-6) 0 var(--lab-sp-16)}.lang-cloze .lang-speak{vertical-align:middle}.lang-dictation-foot{justify-content:flex-end;align-items:center;gap:var(--lab-sp-12);margin-top:var(--lab-sp-12);flex-wrap:wrap;display:flex}.lang-dictation-card{border:1px solid var(--lab-border);border-radius:var(--lab-r-lg);background:var(--lab-surface);width:min(100%,32rem);box-shadow:none;margin-inline:auto;overflow:hidden}.lang-dictation-toolbar{align-items:center;gap:var(--lab-sp-12);padding:var(--lab-sp-12);border-bottom:1px solid var(--lab-border);background:var(--lab-sunken);display:flex}.lang-dictation-toolbar>span{color:var(--lab-muted);font-size:var(--lab-t-sm)}.lang-dictation-toolbar .lang-audio-action{min-height:var(--lab-target);border:1px solid var(--lab-accent-edge);background:var(--lab-surface);color:var(--lab-accent);box-shadow:none;flex:none}.lang-dictation-answer{gap:var(--lab-sp-6);padding:var(--lab-sp-16) var(--lab-sp-16) 0;display:grid}.lang-dictation-answer>label{color:var(--lab-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);letter-spacing:var(--lab-ls-caps);text-transform:uppercase}.lang-dictation-input-row{gap:var(--lab-sp-8);grid-template-columns:minmax(0,1fr) auto;display:grid}.lang-dictation-input-row .lab-input{width:100%;min-height:var(--lab-target)}.lang-dictation-input-row .lab-btn{border-radius:var(--lab-r-md);min-width:5.5rem}.lang-dictation-card .lang-dictation-foot{padding:0 var(--lab-sp-16) var(--lab-sp-16)}@container lab-activity (max-width:32rem){.lang-dictation-toolbar>span{display:none}.lang-dictation-toolbar .lang-audio-action{width:100%}.lang-dictation-input-row{grid-template-columns:1fr}.lang-dictation-input-row .lab-btn{width:100%}}.lang-reveal{font-size:var(--lab-t-lg);font-weight:var(--lab-w-bold);letter-spacing:var(--lab-ls-caps);color:var(--lab-fg);font-variant-numeric:tabular-nums}.lang-errsentence{font-size:var(--lab-t-title);line-height:2;font-weight:var(--lab-w-medium);color:var(--lab-fg);margin:var(--lab-sp-6) 0 var(--lab-sp-12)}.lang-word{color:inherit;font:inherit;padding:2px var(--lab-sp-2);border-radius:var(--lab-r-sm);cursor:pointer;transition:background var(--lab-dur-fast), color var(--lab-dur-fast), transform var(--lab-dur-fast);background:0 0;border:0}@media (hover:hover) and (pointer:fine){.lang-word:hover:not(:disabled){background:var(--lab-accent-soft)}}.lang-word[data-state=no]{color:var(--lab-danger);background:var(--lab-danger-soft);animation:.42s lang-shake}.lang-word:disabled{cursor:default}.lang-fix{padding:2px var(--lab-sp-8);border-radius:var(--lab-r-sm);font-weight:var(--lab-w-bold);color:var(--lab-good);background:var(--lab-good-soft)}.lang-reading{gap:var(--lab-sp-12);display:grid}.lang-passage{padding:var(--lab-sp-16) var(--lab-sp-16);border-radius:var(--lab-r-lg);background:var(--lab-sunken);font-size:var(--lab-t-body);line-height:var(--lab-lh-prose);color:var(--lab-fg);max-width:68ch}.lang-passage p{margin:0 0 var(--lab-sp-10)}.lang-passage p:last-child{margin-bottom:0}.lang-gloss{gap:var(--lab-sp-6) var(--lab-sp-16);font-size:var(--lab-t-sm);color:var(--lab-muted);flex-wrap:wrap;display:flex}.lang-gloss-row b{color:var(--lab-fg);font-weight:var(--lab-w-semibold)}.lang-blank{min-width:52px;padding:2px var(--lab-sp-12);border-radius:var(--lab-r-sm);border:2px dashed var(--lab-border-strong);background:var(--lab-sunken);font-weight:var(--lab-w-bold);justify-content:center;align-items:center;display:inline-flex}.lang-blank[data-state=ok]{border-style:solid;border-color:var(--lab-good);color:var(--lab-good);background:var(--lab-good-soft)}.lang-blank[data-state=no]{border-style:solid;border-color:var(--lab-danger);color:var(--lab-danger)}.lang-noun,.lang-subject{font-weight:var(--lab-w-semibold)}.lang-subject[data-ok=true]{color:var(--lang-pos-pronoun)}.lang-link{color:var(--lab-good);font-weight:var(--lab-w-bold)}.lang-why{font-size:var(--lab-t-body);font-weight:var(--lab-w-medium);margin:var(--lab-sp-12) 0 0}.lang-why[data-state=ok]{color:var(--lab-good)}.lang-why[data-state=no]{color:var(--lab-muted)}.lang-from{gap:var(--lab-sp-8);opacity:.85;flex-wrap:wrap;align-items:center;display:flex}.lang-from .lang-tile{filter:saturate(.7);cursor:default}.lang-arrow{font-size:var(--lab-t-title);font-weight:var(--lab-w-bold);color:var(--lab-muted);margin:var(--lab-sp-4) 0;text-align:center;width:100%}.lang-scene{padding:var(--lab-sp-4) 0 var(--lab-sp-10);justify-content:center;display:flex}.lang-prepscene{border-radius:var(--lab-r-md);border:1px solid var(--lab-border);background:currentColor;width:240px;height:172px;position:relative;overflow:hidden}@supports (color:color-mix(in lab, red, red)){.lang-prepscene{background:color-mix(in oklab, currentColor 3%, transparent)}}.lang-preplandmark{left:var(--landmark-x,50%);font-size:62px;line-height:var(--lab-lh-tight);position:absolute;top:56%;transform:translate(-50%,-50%)}.lang-prepfig{font-size:38px;line-height:var(--lab-lh-tight);filter:drop-shadow(0 1px 1.5px);position:absolute}@supports (color:color-mix(in lab, red, red)){.lang-prepfig{filter:drop-shadow(0 1px 1.5px color-mix(in oklab, currentColor 30%, transparent))}}.lang-backdrop{position:absolute;inset:0;overflow:hidden}.lang-backdrop[data-kind=sky]{background:radial-gradient(circle at 78% 18%, var(--stage-warn) 0 8%, transparent 9%), linear-gradient(180deg, var(--stage-accent), var(--stage-bg))}@supports (color:color-mix(in lab, red, red)){.lang-backdrop[data-kind=sky]{background:radial-gradient(circle at 78% 18%, color-mix(in oklab, var(--stage-warn) 38%, transparent) 0 8%, transparent 9%), linear-gradient(180deg, color-mix(in oklab, var(--stage-accent) 24%, var(--stage-bg)), var(--stage-bg))}}.lang-backdrop[data-kind=water]{border-radius:var(--lab-r-lg) var(--lab-r-lg) 0 0 / var(--lab-r-md) var(--lab-r-md) 0 0;background:repeating-linear-gradient(170deg, transparent 0 .8rem, #ffffff38 .85rem .95rem), linear-gradient(180deg, var(--stage-accent), var(--stage-accent));top:48%}@supports (color:lab(0% 0 0)){.lang-backdrop[data-kind=water]{background:repeating-linear-gradient(170deg, transparent 0 .8rem, lab(100% -.0000298023 .0000119209/.22) .85rem .95rem), linear-gradient(180deg, var(--stage-accent), var(--stage-accent))}}@supports (color:color-mix(in lab, red, red)){.lang-backdrop[data-kind=water]{background:repeating-linear-gradient(170deg, transparent 0 .8rem, lab(100% -.0000298023 .0000119209/.22) .85rem .95rem), linear-gradient(180deg, color-mix(in oklab, var(--stage-accent) 65%, #7fc8ff), color-mix(in oklab, var(--stage-accent) 80%, #174f92))}}.lang-backdrop[data-kind=ground]{background:radial-gradient(ellipse at 20% 0, var(--stage-good) 0 28%, transparent 30%), linear-gradient(180deg, var(--stage-good), var(--stage-good));top:68%}@supports (color:color-mix(in lab, red, red)){.lang-backdrop[data-kind=ground]{background:radial-gradient(ellipse at 20% 0, color-mix(in oklab, var(--stage-good) 40%, transparent) 0 28%, transparent 30%), linear-gradient(180deg, color-mix(in oklab, var(--stage-good) 58%, #9bd178), color-mix(in oklab, var(--stage-good) 75%, #4d7b36))}}.lang-backdrop[data-kind=room]{background:linear-gradient(90deg, transparent 49.5%, var(--stage-grid) 50%, transparent 50.5%), linear-gradient(180deg, var(--stage-warn) 0 62%, var(--stage-warn) 62%)}@supports (color:color-mix(in lab, red, red)){.lang-backdrop[data-kind=room]{background:linear-gradient(90deg, transparent 49.5%, color-mix(in oklab, var(--stage-grid) 65%, transparent) 50%, transparent 50.5%), linear-gradient(180deg, color-mix(in oklab, var(--stage-warn) 8%, var(--stage-bg)) 0 62%, color-mix(in oklab, var(--stage-warn) 22%, var(--stage-bg)) 62%)}}.lang-backdrop-sun{width:1.5rem;height:1.5rem;color:var(--stage-warn);position:absolute;inset-block-start:var(--lab-sp-10);inset-inline-end:var(--lab-sp-14)}.lang-feedback{margin-top:var(--lab-sp-12)}.lang-match[data-layout=picture]{grid-template-columns:repeat(auto-fill,minmax(6.5rem,1fr))}.lang-typegrid{gap:var(--lab-sp-12);grid-template-columns:repeat(auto-fill,minmax(180px,1fr));display:grid}.lang-typecard{border:1px solid var(--lab-border);border-radius:var(--lab-r-md);padding:var(--lab-sp-6) var(--lab-sp-8) var(--lab-sp-10);background:var(--lab-surface);min-width:0}.lang-typecard svg{width:100%;max-width:100%;height:auto}.lang-typename{font-weight:var(--lab-w-semibold);font-size:var(--lab-t-body);margin:var(--lab-sp-4) 0 0;color:var(--lab-fg)}.lang-typecap{font-size:var(--lab-t-eyebrow);color:var(--lab-muted);margin:1px 0 0}.lang-match-cell[data-state=sel]{border-color:var(--lab-accent);background:var(--lab-accent-soft);box-shadow:var(--lab-elevation-selected)}.lang-match-cell[data-state=ok]{border-color:var(--lab-good);background:var(--lab-good-soft);color:var(--lab-good-ink);cursor:default}.lang-match-cell[data-state=no]{border-color:var(--lab-danger);background:var(--lab-danger-soft);color:var(--lab-danger-ink);animation:.42s lang-shake}.lang-match-cell:disabled{cursor:default}.lang-match-cell{padding:var(--lab-sp-14)}@layer components{.lab-three-scene{border-radius:var(--lab-radius,.75rem);border:1px solid var(--stage-grid);width:100%;min-height:clamp(18rem,48vw,26rem);position:relative;overflow:hidden}@supports (color:color-mix(in lab, red, red)){.lab-three-scene{border:1px solid color-mix(in oklab, var(--stage-grid) 78%, transparent)}}.lab-three-scene{background:radial-gradient(ellipse 120% 100% at 50% 0%, var(--stage-fg) 0%, var(--stage-bg) 72%)}@supports (color:color-mix(in lab, red, red)){.lab-three-scene{background:radial-gradient(ellipse 120% 100% at 50% 0%, color-mix(in oklab, var(--stage-fg) 5%, var(--stage-bg)) 0%, var(--stage-bg) 72%)}}.lab-three-scene[data-mode=fallback]{min-height:0;box-shadow:none;background:0 0;border:0}.lab-three-canvas{height:clamp(18rem,48vw,26rem);min-height:inherit;position:relative}.lab-three-canvas canvas{touch-action:pan-y;cursor:grab;max-width:100%;display:block;width:100%!important;height:100%!important}.lab-three-canvas canvas:active{cursor:grabbing}.lab-meiosis-scene{min-height:inherit;align-content:center;justify-items:center;margin:0;padding:clamp(.75rem,2vw,1.25rem);display:grid}.lab-meiosis-scene svg{width:min(100%,42rem);height:auto;max-height:25rem;display:block}.lab-meiosis-scene figcaption{gap:var(--lab-sp-4);text-align:center;max-width:42rem;display:grid}.lab-meiosis-scene figcaption span{color:var(--stage-muted-fg);font-size:var(--lab-t-sm)}.lab-meiosis-product{fill:var(--stage-fg);font:700 16px system-ui,sans-serif}.lab-three-depth{pointer-events:none;background:radial-gradient(ellipse at 50% 78%, var(--stage-foreground), transparent 34%);position:absolute;inset:0}@supports (color:color-mix(in lab, red, red)){.lab-three-depth{background:radial-gradient(ellipse at 50% 78%, color-mix(in oklab, var(--stage-foreground) 11%, transparent), transparent 34%)}}.lab-three-depth{-webkit-mask-image:linear-gradient(#0000 35%,#000 100%);mask-image:linear-gradient(#0000 35%,#000 100%)}.lab-three-legend{gap:var(--lab-sp-6);color:var(--stage-muted);font-size:var(--lab-t-eyebrow);pointer-events:none;flex-wrap:wrap;display:flex;position:absolute;inset-block-start:var(--lab-sp-12);inset-inline-start:var(--lab-sp-12)}.lab-three-legend span{align-items:center;gap:var(--lab-sp-4);padding:var(--lab-sp-4) var(--lab-sp-8);border:1px solid var(--stage-grid);border-radius:var(--lab-r-pill);color:var(--stage-foreground);background:var(--stage-bg);display:inline-flex}@supports (color:color-mix(in lab, red, red)){.lab-three-legend span{background:color-mix(in oklab, var(--stage-bg) 88%, transparent)}}.lab-three-legend span{box-shadow:0 .25rem .8rem var(--stage-foreground)}@supports (color:color-mix(in lab, red, red)){.lab-three-legend span{box-shadow:0 .25rem .8rem color-mix(in oklab, var(--stage-foreground) 8%, transparent)}}.lab-three-legend span{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.lab-three-legend i{background:var(--stage-accent);border-radius:50%;width:.55rem;height:.55rem}.lab-three-legend i[data-tone=outer]{background:var(--stage-accent-2)}.lab-three-legend i[data-tone=pair]{border:1px solid var(--stage-accent-2);background:0 0}.lab-three-legend i[data-tone=nucleus]{background:var(--stage-warn)}.lab-three-legend i[data-tone=neutral]{background:var(--stage-muted)}.lab-three-hint{align-items:center;gap:var(--lab-sp-6);padding:var(--lab-sp-6) var(--lab-sp-10);border:1px solid var(--stage-grid);display:inline-flex;position:absolute;inset-block-end:var(--lab-sp-12);inset-inline-end:var(--lab-sp-12)}@supports (color:color-mix(in lab, red, red)){.lab-three-hint{border:1px solid color-mix(in oklab, var(--stage-grid) 75%, transparent)}}.lab-three-hint{border-radius:var(--lab-r-pill);color:var(--stage-muted);background:var(--stage-bg)}@supports (color:color-mix(in lab, red, red)){.lab-three-hint{background:color-mix(in oklab, var(--stage-bg) 88%, transparent)}}.lab-three-hint{box-shadow:0 .4rem 1.2rem var(--stage-foreground)}@supports (color:color-mix(in lab, red, red)){.lab-three-hint{box-shadow:0 .4rem 1.2rem color-mix(in oklab, var(--stage-foreground) 9%, transparent)}}.lab-three-hint{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);pointer-events:none}.lab-three-hint-icon{color:var(--stage-accent);font-size:var(--lab-t-body)}.lab-three-tools,.lab-three-inspector{z-index:var(--lab-z-raised);border:1px solid var(--stage-grid);position:absolute}@supports (color:color-mix(in lab, red, red)){.lab-three-tools,.lab-three-inspector{border:1px solid color-mix(in oklab, var(--stage-grid) 78%, transparent)}}.lab-three-tools,.lab-three-inspector{border-radius:calc(var(--lab-radius,.75rem) - .15rem);color:var(--stage-foreground);background:var(--stage-bg)}@supports (color:color-mix(in lab, red, red)){.lab-three-tools,.lab-three-inspector{background:color-mix(in oklab, var(--stage-bg) 91%, transparent)}}.lab-three-tools,.lab-three-inspector{box-shadow:0 1rem 2.4rem -1.4rem var(--stage-foreground)}@supports (color:color-mix(in lab, red, red)){.lab-three-tools,.lab-three-inspector{box-shadow:0 1rem 2.4rem -1.4rem color-mix(in oklab, var(--stage-foreground) 30%, transparent)}}.lab-three-tools,.lab-three-inspector{-webkit-backdrop-filter:blur(14px)saturate(1.15);backdrop-filter:blur(14px)saturate(1.15)}.lab-three-tools{gap:var(--lab-sp-4);max-width:min(13rem,34%);padding:var(--lab-sp-6);flex-direction:column;display:flex;inset-block-start:48px;inset-inline-start:var(--lab-sp-12)}.lab-three-tools button{min-height:2.35rem;padding:var(--lab-sp-8) var(--lab-sp-10);border-radius:var(--lab-r-sm);color:var(--stage-muted);font:inherit;font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-semibold);text-align:start;cursor:pointer;background:0 0;border:0}.lab-three-tools button:hover{color:var(--stage-foreground);background:var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.lab-three-tools button:hover{background:color-mix(in oklab, var(--stage-accent) 9%, transparent)}}.lab-three-tools button[aria-pressed=true]{color:var(--stage-accent);background:var(--stage-accent)}@supports (color:color-mix(in lab, red, red)){.lab-three-tools button[aria-pressed=true]{background:color-mix(in oklab, var(--stage-accent) 13%, transparent)}}.lab-three-tools button:focus-visible{outline:2px solid var(--stage-accent);outline-offset:1px}.lab-three-inspector{width:min(17rem,32%);padding:var(--lab-sp-14);inset-block-start:var(--lab-sp-12);inset-inline-end:var(--lab-sp-12)}.lab-three-inspector h3{font-size:var(--lab-t-body);line-height:var(--lab-lh-title);margin:0}.lab-three-inspector p{margin:var(--lab-sp-6) 0 0;color:var(--stage-muted);font-size:var(--lab-t-eyebrow);line-height:var(--lab-lh-ui)}.lab-three-inspector dl{gap:var(--lab-sp-6);margin:var(--lab-sp-12) 0 0;font-size:var(--lab-t-eyebrow);display:grid}.lab-three-inspector dl>div{justify-content:space-between;gap:var(--lab-sp-12);border-block-start:1px solid var(--stage-grid);padding-block-start:var(--lab-sp-6);display:flex}@supports (color:color-mix(in lab, red, red)){.lab-three-inspector dl>div{border-block-start:1px solid color-mix(in oklab, var(--stage-grid) 70%, transparent)}}.lab-three-inspector dt{color:var(--stage-muted)}.lab-three-inspector dd{font-weight:var(--lab-w-semibold);text-align:end;margin:0}@media (max-width:640px){.lab-three-scene{min-height:clamp(15rem,72vw,20rem)}.lab-three-canvas{height:clamp(15rem,72vw,20rem)}.lab-three-legend{gap:var(--lab-sp-4);inset-block-start:var(--lab-sp-8);inset-inline:.5rem}.lab-three-legend span{padding:var(--lab-sp-4) var(--lab-sp-6);font-size:var(--lab-t-micro)}.lab-three-hint{max-width:12rem;inset-block-end:var(--lab-sp-8);inset-inline-end:var(--lab-sp-8)}.lab-three-tools{max-width:42%;inset-block-start:44px;inset-inline-start:var(--lab-sp-8)}.lab-three-inspector{width:auto;padding:var(--lab-sp-10);inset-block:auto 48px;inset-inline:.5rem}.lab-three-inspector dl{display:none}}.lab-activity[data-focus] .lab-three-scene,.lab-activity[data-focus] .lab-three-canvas{height:clamp(28rem,62dvh,48rem);min-height:clamp(28rem,62dvh,48rem)}:root{--stage-primary:var(--stage-accent,var(--primary));--stage-info:var(--stage-accent,var(--primary));--stage-info-soft:var(--stage-accent,var(--primary))}@supports (color:color-mix(in lab, red, red)){:root{--stage-info-soft:color-mix(in oklab, var(--stage-accent,var(--primary)) 12%, var(--stage-bg,var(--card)))}}:root{--stage-success:var(--stage-good,var(--success));--stage-success-soft:var(--stage-good,var(--success))}@supports (color:color-mix(in lab, red, red)){:root{--stage-success-soft:color-mix(in oklab, var(--stage-good,var(--success)) 12%, var(--stage-bg,var(--card)))}}:root{--stage-warn-soft:var(--stage-warn,var(--warning))}@supports (color:color-mix(in lab, red, red)){:root{--stage-warn-soft:color-mix(in oklab, var(--stage-warn,var(--warning)) 12%, var(--stage-bg,var(--card)))}}:root{--stage-border:var(--stage-grid,var(--border));--stage-border-strong:var(--stage-axis,var(--foreground));--stage-muted-fg:var(--stage-muted,var(--muted-foreground))}.modern-linked-scene{background:var(--stage-bg);display:grid;overflow:hidden}.modern-linked-scene--linked{grid-template-columns:minmax(0,1fr)}.modern-linked-scene>section{min-width:0;padding:clamp(.25rem,1vw,.75rem)}.modern-linked-scene--linked>section+section{border-block-start:1px solid var(--stage-grid)}.modern-linked-scene svg{max-height:34rem;display:block}.modern-scene-label{fill:var(--stage-fg);font-size:var(--lab-t-sm);font-weight:var(--lab-w-bold);letter-spacing:0}.modern-clock-ledger{fill:var(--stage-fg);font-size:var(--lab-t-body);font-weight:var(--lab-w-bold);font-variant-numeric:tabular-nums}.modern-scene-note{fill:var(--stage-muted);font-size:var(--lab-t-eyebrow);font-weight:var(--lab-w-medium)}.modern-scene-measure{fill:var(--stage-fg);font-size:var(--lab-t-body);font-weight:var(--lab-w-semibold);font-variant-numeric:tabular-nums}.modern-experiment-transport{justify-content:flex-end;align-items:center;gap:var(--lab-sp-8);flex-wrap:wrap;width:100%;display:flex}.modern-experiment-transport .lab-transport-state{min-width:0;margin-inline:auto}.modern-experiment-transport>:is(input[type=range],.lab-slider,[data-slot=slider]){width:100%;accent-color:var(--stage-primary);flex:1 0 100%}.modern-fission-workspace{gap:var(--lab-sp-10);display:grid}.modern-fission-workspace>svg{border-radius:var(--lab-r-md);background:var(--stage-bg);width:100%;min-height:18rem;display:block}.modern-fission-ledger{border:1px solid var(--stage-border);border-radius:var(--lab-r-md);background:var(--stage-border);grid-template-columns:repeat(6,minmax(0,1fr));gap:1px;display:grid;overflow:hidden}.modern-fission-ledger>div{gap:var(--lab-sp-4);padding:var(--lab-sp-8) var(--lab-sp-10);background:var(--stage-bg);display:grid}.modern-fission-ledger span{color:var(--stage-muted-fg);font-size:var(--lab-t-eyebrow)}.modern-fission-ledger strong{font-size:var(--lab-t-sm);font-variant-numeric:tabular-nums}@media (max-width:640px){.modern-experiment-transport{justify-content:center}.modern-experiment-transport>*{min-width:0}.modern-experiment-transport>:is(input[type=range],.lab-slider,[data-slot=slider]){flex:1 0 100%}.modern-fission-ledger{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1120px){.modern-linked-scene--linked{grid-template-columns:repeat(2,minmax(0,1fr))}.modern-linked-scene--linked>section+section{border-block-start:0;border-inline-start:1px solid var(--stage-grid)}}}