:root{--luminate-ink:var(--ink);--luminate-primary:var(--indigo);--luminate-primary-text:var(--indigo-ink);--luminate-primary-dark:var(--indigo-ink);--luminate-correct:var(--mint-ink);--luminate-wrong:#b42318;--luminate-bg:var(--canvas);--luminate-card-bg:var(--surface);--luminate-border:var(--line)}*{box-sizing:border-box}html,:root{--safe-top:env(safe-area-inset-top,0px);--safe-top-chrome:max(env(safe-area-inset-top,0px), 12px);--safe-right:env(safe-area-inset-right,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--canvas:#faf8f5;--surface:#fff;--surface-sunken:#f3f0ea;--canvas-focus:#f5f2eb;--ink:#1e293b;--ink-muted:#4a5568;--indigo:#4f46e5;--mint:#059669;--amber:#d97706;--indigo-ink:#4338ca;--mint-ink:#047857;--amber-ink:#92400e;--line:#e4ded3;--line-strong:#cfc6b6;--tint-indigo:color-mix(in oklab, var(--indigo) 10%, var(--surface));--tint-mint:color-mix(in oklab, var(--mint) 12%, var(--surface));--tint-amber:color-mix(in oklab, var(--amber) 12%, var(--surface));--radius:16px;--radius-lg:20px;--radius-pill:999px;--shadow:0 4px 20px #0000000a;--shadow-lifted:0 8px 28px #00000012;--tap-target:48px;--answer-height:56px;--spring:cubic-bezier(.34, 1.32, .64, 1);--press:.98;--grad-indigo:linear-gradient(135deg, #6366f1 0%, var(--indigo-ink) 100%);--grad-mint:linear-gradient(135deg, #34d399 0%, var(--mint-ink) 100%);--grad-amber:linear-gradient(135deg, #fbbf24 0%, var(--amber-ink) 100%);--grad-canvas:linear-gradient(180deg, #faf8f5 0%, #f3eee6 100%);--shadow-card:0 1px 2px #11182a0a, 0 8px 24px #11182a12;--shadow-float:0 2px 6px #11182a0f, 0 16px 40px #11182a1a;--shadow-indigo:0 8px 24px #4f46e547;--shadow-mint:0 8px 24px #05966942;--radius-card:24px;--radius-hero:28px;--font-display:"Baloo 2", ui-rounded, "Nunito", "Segoe UI", system-ui, sans-serif}@media 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#2f6fed38}.option--correct{border-color:var(--luminate-correct);background:#1f9d5514}.option--wrong{border-color:var(--luminate-wrong);background:#d6454514}.option__id{color:var(--luminate-primary-text);font-weight:600}.option__mark{font-size:var(--step-1);animation:figure-pop .3s var(--spring,cubic-bezier(.34, 1.32, .64, 1)) both;margin-left:auto;font-weight:800;line-height:1}.option__mark--correct{color:var(--mint-ink,#047857)}.option__mark--wrong{color:var(--luminate-wrong,#b42318)}@media (prefers-reduced-motion:reduce){.option__mark{animation:none}}.matrix-grid{grid-template-columns:repeat(2,96px);gap:8px;margin-bottom:20px;display:grid}.matrix-cell{border:1px solid 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32px;display:flex}.stat-card{background:var(--luminate-card-bg);border-radius:var(--radius-card);text-align:center;box-shadow:var(--shadow-card);border:none;flex:1;padding:20px}.stat-card__value{font-family:var(--font-display);color:var(--luminate-primary-text);font-size:2.2rem;font-weight:800}.stat-card__label{font-size:var(--step--1);color:#6b7788;margin-top:4px}.dashboard-empty{background:var(--luminate-card-bg);border:1px solid var(--luminate-border);color:#4a5568;border-radius:12px;padding:24px}.misconception-list{flex-direction:column;gap:14px;margin:0;padding:0;list-style:none;display:flex}.misconception-row{background:var(--luminate-card-bg);border:1px solid var(--luminate-border);border-radius:10px;padding:14px 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1.2rem + 1vw, 1.9rem);--step-3:clamp(1.7rem, 1.4rem + 1.6vw, 2.4rem);--shell-max:68rem;--gutter:clamp(1rem, .6rem + 2vw, 2rem);--muted:var(--ink-muted);--brand:var(--indigo-ink);--brand-ink:#fff;--danger:#b42318;--success:var(--mint-ink);--warn:#92400e}html{-webkit-text-size-adjust:100%;font-size:100%}body{font-size:var(--step-0);color:var(--ink);background:var(--canvas)}.app-shell{min-height:100dvh;padding:calc(var(--safe-top-chrome) + .5rem) calc(var(--safe-right) + var(--gutter)) calc(var(--safe-bottom) + 1rem) calc(var(--safe-left) + var(--gutter));box-sizing:border-box;flex-direction:column;gap:0;display:flex}.brand-header+main{padding-top:10px}.app-shell>main{width:100%;max-width:var(--shell-max);flex:auto;margin-inline:auto;container:main/inline-size}.brand-header{width:100%;max-width:var(--shell-max);flex-wrap:wrap;align-items:baseline;gap:.5rem .75rem;margin-inline:auto;padding:.25rem 0 .75rem;display:flex}.brand-header__mark{min-height:var(--tap-target);align-items:center;text-decoration:none;display:inline-flex}.brand-header__mark img{width:auto;height:2rem}.brand-header__subtitle{color:var(--muted);font-size:var(--step--1);margin:0}h1{font-size:var(--step-3);line-height:1.2}h2{font-size:var(--step-2);line-height:1.25}h3{font-size:var(--step-1);line-height:1.3}button,.primary-button,.link-button,.danger-button,select,input[type=text],input[type=email],input[type=password],.option,.profile-card,.avatar-option,.plan-option{min-height:var(--tap-target);font-size:var(--step-0)}.link-button{min-width:var(--tap-target);padding-inline:.5rem}input,select,textarea{font-size:max(1rem, var(--step-0))}:where(a,button,input,select,textarea,[tabindex]):focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:var(--gutter);top:calc(var(--safe-top) + .5rem);z-index:10;background:var(--surface);border-radius:8px;padding:.75rem 1rem}.stat-row{grid-template-columns:1fr;gap:.75rem;display:grid}@container main (min-width:34rem){.stat-row{grid-template-columns:repeat(3,1fr)}.profile-grid{grid-template-columns:repeat(auto-fill,minmax(11rem,1fr))}}@container main (min-width:52rem){.dashboard-grid{grid-template-columns:minmax(18rem,22rem) minmax(0,1fr);align-items:start;gap:clamp(1rem,2vw,2rem);display:grid}.onboarding-form{max-width:34rem}}@media (horizontal-viewport-segments:2){.app-shell>main{max-width:none}.dashboard-grid{grid-template-columns:1fr env(viewport-segment-left 1 0,0px) 1fr;gap:0;display:grid}.dashboard-grid>*{padding-inline:var(--gutter)}}@media (vertical-viewport-segments:2){.app-shell>main{max-width:none}.question-card{break-inside:avoid}}@media (max-width:33.99rem){.session-actions,.question-actions{bottom:calc(var(--safe-bottom) + .25rem);background:linear-gradient(to top, var(--canvas) 70%, 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auto;display:grid;position:relative;overflow:hidden}.session-complete__badge{font-size:4rem;line-height:1}.session-complete__headline{font-size:var(--step-3);margin:0}.session-complete__note{color:var(--muted);font-size:var(--step-1);margin:0}.session-complete__cta{width:100%;max-width:20rem;margin-top:.5rem}.session-complete__parent{color:var(--muted);font-size:var(--step--1)}.streak-badge{background:color-mix(in oklab, var(--accent) 12%, transparent);color:var(--accent-ink,var(--ink));border-radius:999px;margin:0;padding:.35rem .85rem;font-weight:600}.confetti{pointer-events:none;position:absolute;inset:0;overflow:hidden}.confetti__piece{border-radius:2px;width:8px;height:14px;animation:2.8s linear forwards confetti-fall;position:absolute;top:-12px}@keyframes confetti-fall{to{opacity:0;transform:translateY(110%)rotate(540deg)}}@media (prefers-reduced-motion:reduce){.confetti{display:none}}@media (forced-colors:active){.confetti{display:none}}.parent-gate{min-height:60svh;padding:1.25rem 1rem calc(1.25rem + var(--safe-bottom));place-items:center;display:grid}.parent-gate__card{border:1px solid var(--line);background:var(--surface);text-align:center;border-radius:1rem;justify-items:center;gap:.75rem;width:100%;max-width:27.5rem;padding:1.75rem 1.25rem;display:grid}.parent-gate__title{font-size:var(--step-1);margin:0}.parent-gate__note{color:var(--muted);font-size:var(--step--1);margin:0}.parent-gate__form{gap:.75rem;width:100%;display:grid}.pin-field{font-size:var(--step--1);color:var(--muted);gap:.35rem;display:grid}.pin-input{font-size:var(--step-2);letter-spacing:.5em;text-align:center;border:1px solid var(--line);background:var(--bg);min-height:44px;color:var(--ink);border-radius:.6rem;padding:.6rem 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