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button:disabled{opacity:.35;cursor:not-allowed}.nuclide-invariants{gap:var(--space-2);padding:var(--space-2);background:color-mix(in oklab, var(--color-surface) 60%, transparent);border-radius:var(--radius-sm);grid-template-columns:repeat(3,1fr);display:grid}.nuclide-invariant-item{text-align:center;flex-direction:column;align-items:center;display:flex}.nuclide-inv-key{color:var(--color-text-muted);font-size:.68rem}.nuclide-inv-val{font-size:var(--text-sm);font-weight:var(--weight-bold);color:var(--color-heading)}.nuclide-inv-val.is-cation{color:var(--color-primary)}.nuclide-inv-val.is-anion{color:var(--color-learning-amber)}.nuclide-verify-btn{min-height:var(--tap-target);padding:var(--space-2) var(--space-3);background:var(--color-primary-subtle);border:1px solid var(--color-primary);border-radius:var(--radius-md);color:var(--color-primary);font-weight:var(--weight-bold);font-size:var(--text-sm);cursor:pointer;transition:all .15s}.nuclide-verify-btn:hover{background:var(--color-primary);color:var(--color-on-primary,var(--color-bg))}.nuclide-didactic-footer{margin-top:var(--space-3);padding-top:var(--space-2);border-top:1px solid var(--glass-border);color:var(--color-text-muted);font-size:.75rem;line-height:1.5}.learning-book--integrated .reader-preferences{position:relative}.learning-book--integrated .reader-preferences summary{align-items:center;gap:var(--space-2);min-height:var(--tap-target);padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);font:inherit;font-size:var(--text-sm);cursor:pointer;list-style:none;display:inline-flex}.learning-book--integrated .reader-preferences summary::-webkit-details-marker{display:none}.learning-book--integrated .reader-preferences summary:after{content:"▾";color:var(--color-text-muted);font-size:.8em}.learning-book--integrated .reader-preferences summary:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:3px}.learning-book--integrated .reader-preferences[open] summary{border-color:var(--color-primary)}.learning-book--integrated .reader-preferences__panel{z-index:6;width:min(20rem,100vw - 2rem);overflow-block:auto;overscroll-behavior:contain;max-block-size:calc(100dvh - 8rem);margin-top:var(--space-2);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);color:var(--color-text);position:absolute;inset-inline-end:0}.learning-book--integrated .reader-preferences__group{margin:0 0 var(--space-4);border:0;padding:0}.learning-book--integrated .reader-preferences__group:last-of-type{margin-bottom:0}.learning-book--integrated .reader-preferences__group legend{margin-bottom:var(--space-2);color:var(--color-text-muted);font-size:var(--text-sm);font-weight:var(--weight-semibold);padding:0}.learning-book--integrated .reader-preferences__group label{align-items:center;gap:var(--space-2);min-height:var(--tap-target);font:inherit;cursor:pointer;display:flex}.learning-book--integrated .reader-preferences__group input{width:1.125rem;height:1.125rem;accent-color:var(--color-primary);margin:0}.learning-book--integrated .reader-preferences__group input:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:2px}.learning-book--integrated .reader-preferences__reset{min-height:var(--tap-target);padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font:inherit;font-size:var(--text-sm);cursor:pointer;background:0 0}.learning-book--integrated .reader-preferences__reset:hover{border-color:var(--color-primary)}.learning-book--integrated .reader-preferences__reset:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:3px}.learning-book--integrated .reader-preferences__status{margin:var(--space-3) 0 0;color:var(--color-text-muted);font-size:var(--text-sm)}.neuraslide-container{background:var(--color-bg);min-height:100dvh;color:var(--color-text);flex-direction:column;display:flex;position:relative;overflow-x:hidden}.neuraslide-header{padding:var(--space-4) var(--space-6);border-bottom:1px solid var(--glass-border);background:color-mix(in oklab, var(--color-surface) 75%, var(--color-bg));-webkit-backdrop-filter:blur(16px);z-index:10;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.neuraslide-header__meta{align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.neuraslide-badge{font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.08em;text-transform:uppercase;color:var(--color-primary);background:var(--glow-cyan-subtle);border:1px solid var(--color-primary);border-radius:var(--radius-full);padding:4px var(--space-3);box-shadow:0 0 12px -2px var(--border-cyan-subtle);align-items:center;display:inline-flex}.neuraslide-topic{font-size:var(--text-xs);font-weight:var(--weight-semibold);letter-spacing:.12em;color:var(--color-text-muted);text-transform:uppercase}.neuraslide-header__brand{align-items:center;gap:var(--space-3);display:flex}.neuraslide-logo{font-size:var(--text-base);font-weight:var(--weight-bold);letter-spacing:-.03em;color:var(--color-primary)}.neuraslide-slogan{letter-spacing:.1em;color:var(--color-primary);font-size:.65rem;font-weight:var(--weight-semibold)}.neuraslide-exit{border:1px solid var(--color-border);width:2rem;height:2rem;color:var(--color-text-muted);cursor:pointer;background:0 0;border-radius:50%;justify-content:center;align-items:center;font-size:.85rem;transition:all .15s;display:flex}.neuraslide-exit:hover{color:var(--color-heading);border-color:var(--color-primary);background:var(--glow-cyan-subtle)}.neuraslide-stage{gap:var(--space-8);width:100%;max-width:84rem;padding:var(--space-6) var(--space-6) calc(var(--space-10) + 4rem);flex:1;grid-template-columns:minmax(0,1.25fr) minmax(20rem,1fr);align-items:start;margin:0 auto;display:grid}.neuraslide-content{gap:var(--space-4);flex-direction:column;display:flex}.neuraslide-title{font-size:clamp(1.6rem,3.2vw,2.4rem);font-weight:var(--weight-bold);letter-spacing:-.035em;color:var(--color-primary);text-wrap:balance;margin:0;line-height:1.15}.neuraslide-subtitle{font-size:var(--text-base);font-weight:var(--weight-bold);color:var(--color-learning-amber);margin:0;line-height:1.4}.neuraslide-intro{font-size:var(--text-sm);color:var(--color-text-muted);margin:0;line-height:1.6}.neuraslide-cards-section{gap:var(--space-3);margin-top:var(--space-2);flex-direction:column;display:flex}.neuraslide-section-heading{font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.08em;text-transform:uppercase;color:var(--color-primary);margin:0}.neuraslide-cards-grid{gap:var(--space-3);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.neuraslide-card{gap:var(--space-1);padding:var(--space-3) var(--space-4);border:1px solid var(--glass-border);border-radius:var(--radius-md);background:var(--glass-surface);flex-direction:column;transition:transform .2s,border-color .2s;display:flex;box-shadow:0 4px 16px -4px #0006}.neuraslide-card:hover{border-color:var(--border-cyan-subtle);transform:translateY(-2px)}.neuraslide-card__top{justify-content:space-between;align-items:center;display:flex}.neuraslide-card__icon{font-size:1.1rem}.neuraslide-card__badge{font-size:.65rem;font-weight:var(--weight-bold);text-transform:uppercase;letter-spacing:.05em;color:var(--color-primary);background:var(--glow-cyan-subtle);padding:1px var(--space-2);border-radius:var(--radius-sm)}.neuraslide-card__title{margin:var(--space-1) 0 0;font-size:var(--text-sm);font-weight:var(--weight-bold);color:var(--color-primary)}.neuraslide-card__desc{color:var(--color-text-muted);margin:0;font-size:.8rem;line-height:1.45}.neuraslide-flow{gap:var(--space-2);padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:color-mix(in oklab, var(--color-surface-raised) 50%, var(--color-bg));flex-direction:column;display:flex}.neuraslide-flow__label{font-size:var(--text-xs);font-weight:var(--weight-bold);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;margin:0}.neuraslide-flow__steps{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.neuraslide-flow__item{align-items:center;gap:var(--space-2);display:inline-flex}.neuraslide-flow__step-name{font-size:.78rem;font-weight:var(--weight-semibold);color:var(--color-heading);background:var(--color-surface);padding:2px var(--space-2);border-radius:var(--radius-sm);border:1px solid var(--color-border)}.neuraslide-flow__arrow{color:var(--color-primary);font-size:.75rem}.neuraslide-interactive{gap:var(--space-4);top:calc(var(--space-6) + 4rem);flex-direction:column;display:flex;position:sticky}.neuraslide-visual{border-radius:var(--radius-lg);border:1px solid var(--glass-border);background:radial-gradient(circle at center, color-mix(in oklab, var(--color-primary) 10%, transparent), var(--color-surface));width:100%;padding:var(--space-4);justify-content:center;align-items:center;display:flex;box-shadow:0 8px 32px -8px #0009}.neuraslide-svg{width:100%;height:auto;max-height:22rem;display:block}.neuraslide-challenge-box{width:100%}.neuraslide-quiz-trigger{justify-content:center;align-items:center;gap:var(--space-2);width:100%;min-height:var(--tap-target);padding:var(--space-3) var(--space-4);border:1px solid var(--color-primary);border-radius:var(--radius-md);background:var(--glow-cyan-subtle);color:var(--color-primary);font-weight:var(--weight-bold);font-size:var(--text-sm);cursor:pointer;box-shadow:0 4px 16px -2px var(--border-cyan-subtle);transition:all .2s;display:flex}.neuraslide-quiz-trigger:hover{background:var(--glow-cyan-active);transform:translateY(-2px)}.neuraslide-quiz-active{gap:var(--space-3);padding:var(--space-4);border:1px solid var(--border-cyan-subtle);border-radius:var(--radius-md);background:var(--color-surface);flex-direction:column;animation:.25s ease-out slideFadeIn;display:flex;box-shadow:0 6px 24px -4px #00000080}@keyframes slideFadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.neuraslide-quiz__prompt{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-heading);margin:0;line-height:1.45}.neuraslide-quiz__choices{gap:var(--space-2);flex-direction:column;display:flex}.neuraslide-choice{text-align:left;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-raised);color:var(--color-text);cursor:pointer;font-size:.82rem;transition:all .15s;display:block}.neuraslide-choice:hover{border-color:var(--color-primary);color:var(--color-heading)}.neuraslide-choice--correct{border-color:var(--color-success);background:color-mix(in oklab, var(--color-success) 20%, var(--color-surface));color:var(--color-heading);font-weight:var(--weight-semibold)}.neuraslide-choice--incorrect{border-color:var(--color-error);background:color-mix(in oklab, var(--color-error) 20%, var(--color-surface));color:var(--color-heading)}.neuraslide-quiz__feedback{margin:var(--space-1) 0 0;font-size:.8rem;font-weight:var(--weight-medium);color:var(--color-primary);line-height:1.4}.neuraslide-footer{z-index:20;min-height:4rem;padding:var(--space-2) var(--space-6);background:color-mix(in oklab, var(--color-surface) 85%, var(--color-bg));-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--glass-border);justify-content:space-between;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0}.neuraslide-footer__left{align-items:center;gap:var(--space-4);display:flex}.neuraslide-footer__web{font-size:var(--text-xs);color:var(--color-text-muted);font-weight:var(--weight-medium)}.neuraslide-footer__dots{align-items:center;gap:6px;display:flex}.neuraslide-dot{background:var(--color-border);cursor:pointer;border:none;border-radius:50%;width:8px;height:8px;padding:0;transition:all .2s}.neuraslide-dot--active{background:var(--color-primary);width:22px;box-shadow:0 0 8px var(--color-primary);border-radius:4px}.neuraslide-footer__counter{font-size:var(--text-sm);color:var(--color-text-muted)}.neuraslide-footer__counter strong{color:var(--color-heading)}.neuraslide-footer__actions{align-items:center;gap:var(--space-3);display:flex}.neuraslide-btn{min-height:2.6rem;padding:0 var(--space-5);font-size:var(--text-sm);font-weight:var(--weight-bold);border-radius:var(--radius-full);cursor:pointer;justify-content:center;align-items:center;text-decoration:none;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex}.neuraslide-btn--prev{border:1px solid var(--color-border);color:var(--color-text-muted);background:0 0}.neuraslide-btn--prev:not(:disabled):hover{border-color:var(--color-text);color:var(--color-heading)}.neuraslide-btn--prev:disabled{opacity:.3;cursor:not-allowed}.neuraslide-btn--next{background:var(--color-primary);border:1px solid var(--color-primary);color:var(--color-bg);box-shadow:0 0 20px -2px var(--border-cyan-subtle)}.neuraslide-btn--next:hover{box-shadow:0 0 28px 0 var(--border-cyan-subtle);transform:translateY(-2px)}.neuraslide-btn--next:disabled{opacity:.5;cursor:default;transform:none}.neuraslide-container--embedded{border-radius:var(--radius-xl);min-height:auto;overflow:hidden}.neuraslide-container--embedded .neuraslide-header{padding:var(--space-3) var(--space-4);position:relative;top:auto}.neuraslide-container--embedded .neuraslide-header__brand{display:none}.neuraslide-container--embedded .neuraslide-stage{padding:var(--space-4) var(--space-4) var(--space-4)}.neuraslide-container--embedded .neuraslide-footer{z-index:2;border-radius:0 0 var(--radius-xl) var(--radius-xl);position:relative;bottom:auto;left:auto;right:auto}.neuraslide-container--fullscreen .neuraslide-footer{padding-bottom:max(var(--safe-area-bottom), var(--space-2));min-height:calc(4rem + var(--safe-area-bottom))}@media (width>=64rem){.neuraslide-container--fullscreen .neuraslide-footer{left:var(--rail-width,0px)}}@media (width<=64rem){.neuraslide-stage{gap:var(--space-6);padding:var(--space-4) var(--space-4) calc(var(--space-10) + 4rem);grid-template-columns:1fr}.neuraslide-interactive{position:static}.neuraslide-cards-grid{grid-template-columns:1fr}.neuraslide-footer__web{display:none}}@media (width<=48rem){.neuraslide-slogan{display:none}.neuraslide-header{padding:var(--space-3) var(--space-4)}.neuraslide-header__meta{gap:var(--space-2)}.neuraslide-badge{padding:2px var(--space-2);font-size:.65rem}.neuraslide-topic{font-size:.65rem}.neuraslide-title{font-size:clamp(1.35rem,5vw,1.75rem)}.neuraslide-subtitle{font-size:var(--text-sm)}.neuraslide-stage{padding:var(--space-3) var(--space-3) var(--space-4);gap:var(--space-4)}.neuraslide-card{padding:var(--space-3)}.neuraslide-footer{padding-inline:var(--space-3)}.neuraslide-btn{min-height:2.75rem;padding:0 var(--space-3);font-size:var(--text-xs)}.neuraslide-footer__dots{gap:4px}.neuraslide-dot{width:6px;height:6px}.neuraslide-dot--active{width:16px}.neuraslide-footer__counter{font-size:var(--text-xs)}}.biology-course-experience{gap:var(--space-6);flex-direction:column;display:flex}.biology-game-entry{gap:var(--space-4);border:1px solid var(--color-border);border-top:3px solid var(--color-primary);border-radius:var(--radius-lg);background:radial-gradient(ellipse at 90% 0%, var(--color-primary-subtle), transparent 55%), var(--color-surface);max-width:62rem;margin:clamp(1.5rem,4vw,3rem) auto;padding:clamp(1.25rem,3vw,2rem);display:grid}.biology-game-entry h2{color:var(--color-book-title);margin:0;font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.15}.biology-game-entry>p:not(.eyebrow){max-width:66ch;color:var(--color-text-muted);margin:0;line-height:1.65}.biology-game-entry .bio-cta{justify-self:start;text-decoration:none}.biology-game-entry__note{font-size:var(--text-sm)}.biology-experience-header{gap:var(--space-4);padding:var(--space-6);background:var(--glass-surface);border:1px solid var(--border-cyan-subtle);border-radius:var(--radius-xl);-webkit-backdrop-filter:blur(16px);box-shadow:0 8px 32px -8px var(--glow-cyan-subtle);flex-direction:column;display:flex}.biology-experience-badge{align-self:flex-start;align-items:center;gap:var(--space-2);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.1em;color:var(--color-primary);background:var(--glow-cyan-subtle);border:1px solid var(--color-primary);border-radius:var(--radius-full);padding:4px var(--space-3);text-transform:uppercase;display:inline-flex}.biology-experience-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:var(--weight-bold);color:var(--color-heading);letter-spacing:-.03em;margin:0;line-height:1.15}.biology-experience-subtitle{color:var(--color-text-muted);max-width:60ch;margin:0;line-height:1.6}.biology-experience-toggle{gap:var(--space-2);background:var(--color-bg);border-radius:var(--radius-full);border:1px solid var(--glass-border);flex-wrap:wrap;align-self:flex-start;padding:4px;display:flex}.experience-toggle-btn{font:inherit;font-size:var(--text-sm);font-weight:var(--weight-semibold);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);color:var(--color-text-muted);cursor:pointer;transition:all var(--duration-base);background:0 0;border:1px solid #0000}.experience-toggle-btn:hover{color:var(--color-text);background:var(--glow-cyan-subtle)}.experience-toggle-btn--active{background:var(--color-primary);color:var(--color-bg);border-color:var(--color-primary);font-weight:var(--weight-bold);box-shadow:0 0 16px var(--glow-cyan-subtle)}.lesson-visual-showcase{margin:var(--space-6) 0;padding:var(--space-6);background:var(--glass-surface);border:1px solid var(--border-cyan-subtle);border-radius:var(--radius-xl);-webkit-backdrop-filter:blur(16px);box-shadow:0 8px 32px -8px var(--glow-cyan-subtle);gap:var(--space-4);flex-direction:column;display:flex}.lesson-visual-showcase__header{justify-content:space-between;align-items:center;gap:var(--space-3);padding-bottom:var(--space-3);border-bottom:1px solid var(--glass-border);flex-wrap:wrap;display:flex}.lesson-visual-showcase__badge{font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.08em;color:var(--color-primary);background:var(--glow-cyan-subtle);border:1px solid var(--color-primary);border-radius:var(--radius-full);padding:4px var(--space-3);align-items:center;display:inline-flex}.lesson-visual-showcase__hint{font-size:var(--text-xs);color:var(--color-text-muted)}.lesson-visual-showcase__graphic{justify-content:center;align-items:center;min-height:280px;display:flex}.lesson-visual-showcase__tabs{align-items:center;gap:var(--space-2);display:flex}.showcase-tab{font:inherit;font-size:var(--text-xs);font-weight:var(--weight-bold);border-radius:var(--radius-full);background:color-mix(in oklab, var(--color-surface-raised) 70%, transparent);border:1px solid color-mix(in oklab, var(--color-border) 70%, transparent);color:var(--color-text-muted);cursor:pointer;transition:all var(--duration-fast);padding:.35rem .85rem}.showcase-tab:hover{color:var(--color-primary);border-color:var(--color-primary);background:color-mix(in oklab, var(--color-primary) 10%, var(--color-surface))}.showcase-tab.is-active{color:var(--color-heading);background:color-mix(in oklab, var(--color-primary) 20%, var(--color-surface));border-color:var(--color-primary);box-shadow:0 0 14px color-mix(in oklab, var(--color-primary) 35%, transparent)}.showcase-interactive-wrapper{margin-top:var(--space-2)}.neuraslide-quiz-note{margin:var(--space-3) 0 0;font-size:var(--text-xs);color:var(--color-text-muted);text-align:center}@media (prefers-reduced-motion:reduce){.neuraslide-container,.neuraslide-container *,.neuraslide-container :before,.neuraslide-container 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var(--space-4);color:var(--color-primary);letter-spacing:-.03em;font-size:clamp(1.9rem,4.2vw,3.4rem);line-height:1.04}.bio-map__intro h1:focus{outline:none}.bio-map__home{min-height:var(--tap-target);margin-bottom:var(--space-1);color:var(--color-text-muted);font-size:var(--text-sm);align-items:center;text-decoration:none;display:inline-flex}.bio-map__home:hover{color:var(--color-primary)}.bio-map__lead{max-width:58ch;color:var(--color-text-muted);font-size:var(--text-base);margin:0;line-height:1.65}.bio-map__start{justify-content:center;gap:var(--space-3);padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-md);background:color-mix(in oklab, var(--color-bg) 55%, 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strong{color:var(--color-text);font-size:var(--text-base);line-height:1.3}.bio-mission__goal{color:var(--color-text-muted);font-size:var(--text-sm);line-height:1.45}.bio-mission__state{padding:3px var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);font-size:var(--text-xs);font-weight:var(--weight-semibold);grid-area:state;place-self:end start}.bio-mission__button.is-next .bio-mission__state{border-color:var(--color-primary);background:var(--color-primary);color:var(--color-on-primary)}.bio-mission__button.is-done .bio-mission__state{border-color:color-mix(in oklab, var(--color-success) 65%, var(--color-border));color:var(--color-success)}.bio-map__note{max-width:70ch;margin-top:var(--space-6);color:var(--color-text-muted);font-size:var(--text-sm);line-height:1.6}.bio-cta{justify-content:center;align-items:center;gap:var(--space-2);border:1px solid var(--color-primary);border-radius:var(--radius-full);background:var(--color-primary);min-height:3.25rem;color:var(--color-on-primary);font-size:var(--text-base);font-weight:var(--weight-bold);cursor:pointer;transition:background var(--duration-fast) var(--ease-standard);padding:.85rem 1.5rem;line-height:1.2;display:inline-flex}.bio-cta:hover{background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.bio-cta__icon{font-size:.9em}.bio-map__start .bio-cta{width:100%;min-height:3.5rem;padding:var(--space-4);text-align:start;text-wrap:balance;border-radius:var(--radius-md);justify-content:flex-start}.bio-map__start .bio-cta__icon{flex:none}.bio-page{gap:clamp(1.25rem,3vw,2rem);display:grid}.bio-level__bar{z-index:20;align-items:center;gap:var(--space-3);padding:calc(var(--space-2) + var(--safe-area-top)) clamp(1rem, 4vw, 2.5rem) var(--space-2);border-bottom:1px solid var(--color-border);background:var(--color-bg);grid-template-columns:auto minmax(0,1fr) auto;grid-template-areas:"back where beats";margin-inline:calc(-1*clamp(1rem,4vw,2.5rem));display:grid;position:sticky;top:0}.bio-level__back{min-height:var(--tap-target);padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);font-size:var(--text-sm);cursor:pointer;background:0 0;grid-area:back}.bio-level__back:hover{border-color:var(--color-primary);color:var(--color-text)}.bio-level__where{color:var(--color-text-muted);font-size:var(--text-xs);letter-spacing:.06em;text-transform:uppercase;grid-area:where;margin:0}.bio-level__beats{justify-content:flex-end;gap:var(--space-1);flex-wrap:wrap;grid-area:beats;margin:0;padding:0;list-style:none;display:flex}.bio-level__beats li{align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);font-size:var(--text-xs);white-space:nowrap;display:inline-flex}.bio-level__beats li span{font-variant-numeric:tabular-nums}.bio-level__beats li[aria-current=step]{border-color:var(--color-primary);background:var(--color-primary-subtle);color:var(--color-text);font-weight:var(--weight-semibold)}.bio-page__grid{grid-template-columns:minmax(15rem,21rem) minmax(0,1fr);align-items:start;gap:clamp(1.25rem,3vw,2.5rem);display:grid}.bio-page__guide{gap:var(--space-4);display:grid}.bio-page__eyebrow{color:var(--color-primary);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.12em;text-transform:uppercase;margin:0}.bio-page__guide h1{color:var(--color-book-title);margin:0;font-size:clamp(1.6rem,3.2vw,2.4rem);line-height:1.08}.bio-page__tease{color:var(--color-text-muted);margin:0;line-height:1.6}.bio-page__notebook{padding:var(--space-3) var(--space-4);border:1px dashed 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h2{color:var(--color-text);margin:0;font-size:clamp(1.3rem,2.8vw,1.9rem);line-height:1.25}.bio-page__intro,.bio-page__hint{color:var(--color-text-muted);margin:0;line-height:1.55}.bio-page__choices{gap:var(--space-3);display:grid}.bio-page__choice{align-items:center;gap:var(--space-3);width:100%;min-height:3.5rem;padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);text-align:left;cursor:pointer;line-height:1.45;display:flex}.bio-page__choice:hover{border-color:var(--color-primary)}.bio-page__choice-icon{font-size:1.5rem;line-height:1}.bio-page__verdict{padding:var(--space-3) var(--space-4);border-left:3px solid 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var(--color-primary);border-radius:50%;place-items:center;width:2.5rem;height:2.5rem;margin-inline:.3rem;display:grid;position:relative}.bio-sugar-chain span+span:before{content:"";background:var(--color-primary);width:.75rem;height:2px;position:absolute;right:100%}.bio-sugar-chain.is-beta span{border-color:var(--color-learning-amber)}.bio-bilayer{text-align:center;padding-block:var(--space-4)}.bio-bilayer>p{padding-block:var(--space-3)}.bio-bilayer__row{justify-content:center;gap:clamp(.25rem,1cqi,1.5rem);display:flex}.bio-bilayer__row>span{justify-items:center;display:grid}.bio-bilayer__row i{border:2px solid var(--color-primary);background:var(--color-primary-subtle);border-radius:50%;width:1.6rem;height:1.6rem}.bio-bilayer__row b{color:var(--color-learning-amber);font-size:2.5rem;line-height:1}.bio-bilayer__row.is-inverted{transform:rotate(180deg)}.bio-vitamin-symbol{border:2px solid var(--color-primary);width:4.5rem;height:4.5rem;color:var(--color-primary);border-radius:50%;place-items:center;margin-inline:auto;font-size:2.5rem;display:grid}.bio-protein-diagram{width:100%}.bio-dna-pairs{width:min(100%,30rem);margin-inline:auto}.bio-dna-pairs__direction{justify-content:space-between;gap:var(--space-3);padding:var(--space-3) 0;display:flex}.bio-dna-pairs__pair{padding-inline:var(--space-4);border-inline:4px solid var(--color-primary);justify-content:space-between;align-items:center;display:flex}.bio-dna-pairs__pair strong{background:var(--color-primary-subtle);place-items:center;width:3rem;height:3rem;margin-block:.3rem;font-size:1.4rem;display:grid}.bio-dna-pairs__pair span{text-align:center;color:var(--color-learning-amber);flex:1;font-size:2rem}.bio-diagram--flow{gap:var(--space-4);margin:0;padding:0;list-style:none;display:grid}.bio-diagram--flow li{padding:var(--space-4);border:1px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-primary-subtle);line-height:1.6;position:relative}.bio-diagram--flow li+li:before{content:"↓";color:var(--color-primary);position:absolute;top:-1.5rem;left:50%}.bio-hydration{justify-content:space-around;align-items:center;gap:var(--space-2);padding-block:var(--space-4);display:flex}.bio-hydration b{border:2px solid var(--color-learning-amber);border-radius:50%;place-items:center;width:3.5rem;height:3.5rem;display:grid}.bio-water-properties{grid-column:1/-1}@container (width>=42rem){.bio-diagram--compare,.bio-water-legend{grid-template-columns:repeat(2,minmax(0,1fr))}.bio-diagram--flow{gap:var(--space-5);grid-template-columns:repeat(4,minmax(0,1fr))}.bio-diagram--flow li+li:before{content:"→";top:40%;left:-1.15rem}.bio-page--experience .bio-page__guide{grid-template-columns:minmax(0,1fr) auto;align-items:center}.bio-reading-route{grid-column:1/-1}}@container (width>=58rem){.bio-discovery__opening .bio-diagram__panel{padding:var(--space-5)}.bio-teach__section{gap:var(--space-6);grid-template-columns:minmax(13rem,.7fr) minmax(0,1.65fr)}.bio-teach__section h3{margin:0}.bio-teach__example,.bio-teach__glossary,.bio-teach>#bio-reading-tip{width:min(100%,76ch);margin-left:auto}}.bio-exam{margin-top:var(--space-4);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:color-mix(in oklab, var(--color-bg) 40%, transparent)}.bio-exam>summary{justify-content:space-between;align-items:center;gap:var(--space-3);min-height:var(--tap-target);cursor:pointer;font-weight:var(--weight-bold);display:flex}.bio-exam__items{gap:var(--space-5);margin:var(--space-4) 0 0;padding:0;list-style:none;display:grid}.bio-exam__item{gap:var(--space-2);display:grid}.bio-exam__stem{font-weight:var(--weight-medium);margin:0;line-height:1.55}.bio-exam__traps,.bio-exam .bio-page__outcome{margin-top:var(--space-4)}.bio-reason{gap:var(--space-3);display:grid}.bio-reason__change{padding:var(--space-3) var(--space-4);border:1px dashed var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);margin:0;line-height:1.55}.bio-reason__chain,.bio-reason__evidence,.bio-reason__criterion{gap:var(--space-2);display:grid}.bio-reason__evidence h3{margin:0;font-size:1.05rem}.bio-reason__label{color:var(--color-text-muted);font-size:.9rem}.bio-reason__write{width:100%;min-height:6rem;padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);font:inherit;resize:vertical;line-height:1.55}.bio-reason__write:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.bio-page__outcome{padding:var(--space-3) var(--space-4);border-left:3px solid var(--color-success);background:var(--color-success-subtle)}.bio-page__outcome span{color:var(--color-success);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.1em;text-transform:uppercase;display:block}.bio-page__outcome p{margin:var(--space-1) 0 0;color:var(--color-text);line-height:1.55}.bio-page__next{color:var(--color-text-muted);font-size:var(--text-sm);margin:0}.bio-page__actions{align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.bio-game{gap:var(--space-4);display:grid}.bio-game__hud{color:var(--color-text-muted);font-size:var(--text-sm);font-variant-numeric:tabular-nums;margin:0}.bio-game__hud strong{color:var(--color-primary)}.bio-game__prompt{color:var(--color-text);font-weight:var(--weight-semibold);margin:0;line-height:1.4}.bio-game__status{padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);border-left-width:3px;margin:0;line-height:1.55}.bio-game__status[data-tone=ok]{border-left-color:var(--color-success);background:var(--color-success-subtle)}.bio-game__status[data-tone=hint]{border-left-color:var(--color-learning-amber);background:var(--color-learning-amber-subtle)}.bio-game__actions{gap:var(--space-3);flex-wrap:wrap;display:flex}.bio-game__primary{min-height:var(--tap-target);padding:var(--space-2) var(--space-5);border:1px solid var(--color-primary);border-radius:var(--radius-full);background:var(--color-primary-subtle);color:var(--color-text);font-weight:var(--weight-semibold);cursor:pointer}.bio-game__primary:hover:not(:disabled){background:color-mix(in oklab, var(--color-primary) 22%, transparent)}.bio-game__primary:disabled{cursor:not-allowed;opacity:.55}.bio-game__quiet{min-height:var(--tap-target);padding:var(--space-2) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);cursor:pointer;background:0 0}.bio-game__quiet:hover{border-color:var(--color-text-muted);color:var(--color-text)}.bio-game__finish{gap:var(--space-3);justify-items:start;display:grid}.bio-detective__current{gap:var(--space-2);padding:var(--space-4);border:1px solid var(--border-cyan-subtle);border-radius:var(--radius-md);background:var(--color-primary-subtle);display:grid}.bio-detective__current .bio-game__prompt{color:var(--color-text-muted);font-size:var(--text-sm);font-weight:var(--weight-medium)}.bio-detective__question{color:var(--color-text);font-size:var(--text-lg);font-weight:var(--weight-semibold);margin:0;line-height:1.35}.bio-detective__cards{gap:var(--space-2);grid-template-columns:repeat(auto-fit,minmax(min(100%,13rem),1fr));display:grid}.bio-detective__card{min-height:var(--tap-target);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:inherit;text-align:left;cursor:pointer;gap:2px;display:grid}.bio-detective__card:hover:not(:disabled){border-color:var(--border-cyan-active)}.bio-detective__card.is-used{border-color:color-mix(in oklab, var(--color-success) 50%, var(--color-border));opacity:.72}.bio-detective__card:disabled{cursor:not-allowed}.bio-detective__card-icon{font-size:1.2rem}.bio-detective__card-name{color:var(--color-text);font-weight:var(--weight-semibold)}.bio-detective__card-scope{color:var(--color-text-muted);font-size:var(--text-xs);line-height:1.4}.bio-detective__progress{gap:var(--space-2);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.bio-detective__progress li{align-items:center;gap:var(--space-1);padding:2px var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);font-size:var(--text-xs);font-variant-numeric:tabular-nums;display:inline-flex}.bio-detective__progress li.is-done{border-color:color-mix(in oklab, var(--color-success) 65%, var(--color-border));color:var(--color-success)}.bio-detective__progress li[aria-current=step]{border-color:var(--color-primary);color:var(--color-text)}.bio-detective__progress-label{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.bio-living__card{justify-items:center;gap:var(--space-2);padding:var(--space-5);border:1px dashed var(--border-cyan-subtle);border-radius:var(--radius-lg);background:var(--color-primary-subtle);text-align:center;display:grid}.bio-living__icon{font-size:2.6rem;line-height:1}.bio-living__label{color:var(--color-text);font-size:var(--text-lg);font-weight:var(--weight-semibold);margin:0}.bio-living__bins{gap:var(--space-2);grid-template-columns:repeat(auto-fit,minmax(min(100%,11rem),1fr));display:grid}.bio-living__bin{gap:var(--space-1);min-height:var(--tap-target);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:inherit;text-align:left;cursor:pointer;display:grid}.bio-living__bin:hover:not(:disabled){border-color:var(--color-primary)}.bio-living__bin:disabled{cursor:not-allowed;opacity:.6}.bio-living__bin-label{color:var(--color-text);font-weight:var(--weight-semibold)}.bio-living__bin-hint{color:var(--color-text-muted);font-size:var(--text-xs);line-height:1.4}.bio-living__board{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(min(100%,14rem),1fr));display:grid}.bio-living__column{padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:color-mix(in oklab, var(--color-surface) 70%, transparent)}.bio-living__column h3{margin:0 0 var(--space-2);color:var(--color-heading);font-size:var(--text-sm)}.bio-living__column ul{gap:var(--space-2);margin:0;padding:0;list-style:none;display:grid}.bio-living__column li{padding:var(--space-2);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font-size:var(--text-sm);line-height:1.4}.bio-living__column li p{margin:var(--space-1) 0 0;color:var(--color-text-muted);font-size:var(--text-xs)}.bio-living__empty{color:var(--color-text-muted);font-size:var(--text-xs);margin:0}.bio-ladder__list{gap:var(--space-1);margin:var(--space-3) 0 0;padding:0;list-style:none;display:grid}.bio-ladder__rung{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);grid-template-columns:2rem 1.6rem minmax(0,1fr) auto;display:grid}.bio-ladder__position{color:var(--color-text-muted);font-size:var(--text-xs);font-variant-numeric:tabular-nums}.bio-ladder__label{color:var(--color-text);font-weight:var(--weight-medium)}.bio-ladder__moves{gap:var(--space-1);display:inline-flex}.bio-ladder__moves button{width:var(--tap-target);height:var(--tap-target);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-raised);color:var(--color-text);font-size:var(--text-base);cursor:pointer}.bio-ladder__moves button:hover:not(:disabled){border-color:var(--color-primary)}.bio-ladder__moves button:disabled{cursor:not-allowed;opacity:.4}.bio-pond__list{gap:var(--space-2);margin:var(--space-3) 0 0;padding:0;list-style:none;display:grid}.bio-pond__item{gap:var(--space-2);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);display:grid}.bio-pond__item.is-solved{border-left:3px solid var(--color-success)}.bio-pond__label{color:var(--color-text);line-height:1.4}.bio-pond__controls{align-items:end;gap:var(--space-2);flex-wrap:wrap;display:flex}.bio-pond__field{gap:var(--space-1);color:var(--color-text-muted);font-size:var(--text-xs);flex:12rem;display:grid}.bio-pond__field select{min-height:var(--tap-target);padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-raised);color:var(--color-text);font-size:var(--text-sm)}.bio-pond__reason{color:var(--color-text-muted);font-size:var(--text-sm);margin:0;line-height:1.5}.bio-fair{gap:var(--space-4);display:grid}.bio-fair__groups{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(min(100%,14rem),1fr));display:grid}.bio-fair__group{gap:var(--space-2);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);margin:0;display:grid}.bio-fair__group legend{padding-inline:var(--space-2);color:var(--color-heading);font-weight:var(--weight-semibold)}.bio-fair__field{gap:var(--space-1);color:var(--color-text-muted);font-size:var(--text-xs);display:grid}.bio-fair__field select{min-height:var(--tap-target);padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-raised);color:var(--color-text);font:inherit;font-size:var(--text-sm)}.bio-fair__diff{color:var(--color-text-muted);font-size:var(--text-sm);margin:0;line-height:1.5}.bio-fair__diff[data-tone=ok]{color:var(--color-success)}.bio-fair__diff[data-tone=hint]{color:var(--color-learning-amber)}.bio-fair__result{gap:var(--space-3);padding:var(--space-4);border:1px solid var(--border-cyan-subtle);border-left:3px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-primary-subtle);display:grid}.bio-fair__result p{margin:0;line-height:1.55}.bio-fair__answers{gap:var(--space-2);grid-template-columns:repeat(auto-fit,minmax(min(100%,8rem),1fr));display:grid}.bio-fair__answers button{min-height:var(--tap-target);padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font-size:var(--text-sm);cursor:pointer}.bio-fair__answers button:hover{border-color:var(--color-primary)}.bio-carbon{gap:var(--space-4);display:grid}.bio-carbon__skeleton{color:var(--color-heading);font-size:var(--text-lg);font-weight:var(--weight-semibold);letter-spacing:.2em;text-align:center;margin:0}.bio-carbon__chain{gap:var(--space-2);grid-template-columns:repeat(auto-fit,minmax(min(100%,9rem),1fr));display:grid}.bio-carbon__atom{justify-items:center;gap:var(--space-1);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);text-align:center;display:grid}.bio-carbon__symbol{border-radius:var(--radius-full);background:var(--color-primary-subtle);width:2.4rem;height:2.4rem;color:var(--color-primary);font-size:var(--text-lg);font-weight:var(--weight-bold);place-items:center;display:grid}.bio-carbon__label{color:var(--color-text-muted);font-size:var(--text-xs)}.bio-carbon__bonds{color:var(--color-text);font-size:var(--text-sm);font-weight:var(--weight-semibold)}.bio-carbon__dots{gap:3px;display:flex}.bio-carbon__dots i{border:1px solid var(--color-border);border-radius:var(--radius-full);width:8px;height:8px}.bio-carbon__dots i.is-filled{border-color:var(--color-primary);background:var(--color-primary)}.bio-carbon__h{color:var(--color-text-muted);font-size:var(--text-xs)}.bio-carbon__actions{gap:var(--space-1);display:flex}.bio-carbon__actions button{min-width:var(--tap-target);min-height:var(--tap-target);padding:0 var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-raised);color:var(--color-text);cursor:pointer}.bio-carbon__actions button:disabled{cursor:not-allowed;opacity:.45}.bio-carbon__formula{color:var(--color-heading);font-weight:var(--weight-semibold);text-align:center;margin:0}.bio-carbon__pans{gap:var(--space-2);grid-template-columns:repeat(auto-fit,minmax(min(100%,10rem),1fr));display:grid}.bio-carbon__pan{justify-items:center;gap:var(--space-1);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);display:grid}.bio-carbon__pan strong{color:var(--color-primary);font-size:var(--text-xl)}.bio-carbon__pan span{color:var(--color-text-muted);font-size:var(--text-sm)}.bio-carbon__pan-mass{font-weight:var(--weight-semibold);color:var(--color-text)!important}.bio-carbon__answers{gap:var(--space-2);grid-template-columns:repeat(auto-fit,minmax(min(100%,10rem),1fr));display:grid}.bio-carbon__answers button{min-height:var(--tap-target);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);cursor:pointer}.bio-carbon__answers button:hover{border-color:var(--color-primary)}.bio-water{gap:var(--space-4);display:grid}.bio-water__scene{gap:var(--space-4);grid-template-columns:minmax(0,1fr);align-items:center;display:grid}.bio-water__tray{gap:var(--space-2);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.bio-water__substance{min-height:var(--tap-target);padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);cursor:pointer;justify-items:center;gap:2px;display:grid}.bio-water__substance:hover:not(:disabled){border-color:var(--color-primary)}.bio-water__substance.is-used{cursor:default;opacity:.6}.bio-water__icon{font-size:1.4rem;line-height:1}.bio-water__check{color:var(--color-success);font-weight:var(--weight-bold)}.bio-water__log{gap:var(--space-1);color:var(--color-text-muted);font-size:var(--text-sm);margin:0;padding:0;list-style:none;display:grid}.bio-water__log li{padding-block:var(--space-1);border-bottom:1px solid var(--color-border)}.bio-water__final{gap:var(--space-3);padding:var(--space-4);border:1px solid var(--border-cyan-subtle);border-left:3px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-primary-subtle);display:grid}.bio-water__answers{gap:var(--space-2);display:grid}.bio-water__answers button{min-height:var(--tap-target);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);text-align:left;cursor:pointer}.bio-water__answers button:hover{border-color:var(--color-primary)}.bio-water__hint{color:var(--color-text-muted);font-size:var(--text-sm);margin:0}.bio-sugar{gap:var(--space-3);display:grid}.bio-sugar__bonds{gap:var(--space-2);flex-wrap:wrap;display:flex}.bio-sugar__bonds button{min-height:var(--tap-target);padding:var(--space-2) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-full);background:var(--color-surface);color:var(--color-text);cursor:pointer}.bio-sugar__bonds button[aria-pressed=true]{border-color:var(--color-primary);background:var(--color-primary-subtle)}.bio-sugar__chain{justify-content:center;align-items:center;gap:var(--space-2);min-height:5rem;padding:var(--space-3);border:1px dashed var(--border-cyan-subtle);border-radius:var(--radius-md);background:color-mix(in oklab, var(--color-surface) 70%, transparent);flex-wrap:wrap;display:flex}.bio-sugar__glucose{border:1px solid var(--color-primary);border-radius:var(--radius-full);background:var(--color-primary-subtle);width:2.4rem;height:2.4rem;color:var(--color-primary);font-weight:var(--weight-bold);place-items:center;display:grid}.bio-sugar__chain.is-cut .bio-sugar__glucose{border-color:var(--color-error);background:var(--color-error-subtle);color:var(--color-error)}.bio-sugar__chain.is-intact .bio-sugar__glucose{border-color:var(--color-success);background:var(--color-success-subtle);color:var(--color-success)}.bio-sugar__bond{color:var(--color-learning-amber);font-size:var(--text-lg);font-weight:var(--weight-bold)}.bio-sugar__empty{color:var(--color-text-muted);font-size:var(--text-sm)}.bio-sugar__log{gap:var(--space-1);color:var(--color-text-muted);font-size:var(--text-sm);margin:0;padding:0;list-style:none;display:grid}.bio-sugar__log li{padding-block:var(--space-1);border-bottom:1px solid var(--color-border)}.bio-sugar__log li[data-tested=true]{color:var(--color-text)}.bio-sugar__final{gap:var(--space-3);padding:var(--space-4);border:1px solid var(--border-cyan-subtle);border-left:3px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-primary-subtle);display:grid}.bio-sugar__answers{gap:var(--space-2);display:grid}.bio-sugar__answers button{min-height:var(--tap-target);padding:var(--space-3);border:1px solid 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var(--color-border);border-radius:var(--radius-lg)}.concept-list{gap:var(--space-2);margin:0;padding:0;list-style:none;display:grid}.concept-row{align-items:baseline;gap:var(--space-3);color:var(--color-text-muted);line-height:var(--leading-normal);overflow-wrap:anywhere;display:flex}.concept-row:before{content:"";background:var(--color-border);border-radius:var(--radius-full);flex-shrink:0;width:.375rem;height:.375rem;transform:translateY(-.125rem)}.target-label{margin:0 0 var(--space-2);color:var(--color-text-muted);font-size:var(--text-xs);font-weight:var(--weight-medium);letter-spacing:.08em;text-transform:uppercase}.target-title{max-width:none;margin:0 0 var(--space-2);font-size:var(--text-xl);letter-spacing:-.03em;line-height:var(--leading-snug)}.target-meta{color:var(--color-text-muted);line-height:var(--leading-normal);margin:0}.target-deadline{margin:var(--space-3) 0 0;color:var(--color-primary);font-size:var(--text-sm);font-weight:var(--weight-semibold)}.desk{gap:var(--space-3);padding:var(--space-6);background:radial-gradient(120% 90% at 100% 0%, var(--color-primary-subtle), transparent 58%), var(--color-surface);border:1px solid var(--color-border);border-radius:calc(var(--radius-lg) + var(--space-2));display:grid}.desk__countdown{color:var(--color-primary);font-size:var(--text-sm);font-weight:var(--weight-semibold);margin:0}.desk__line{max-width:36rem;color:var(--color-text);line-height:var(--leading-normal);margin:0}.desk-points{gap:var(--space-3);margin:0;padding:0;list-style:none;display:grid}.desk-points li{padding:var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);line-height:var(--leading-normal)}.player__context{margin:0 0 var(--space-1);color:var(--color-primary);font-size:var(--text-xs);font-weight:var(--weight-semibold);letter-spacing:.04em}.practice-hub{gap:var(--space-4);display:grid}.chip{padding:var(--space-1) var(--space-3);color:var(--color-text-muted);background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--weight-medium);align-items:center;display:inline-flex}.player__bar{z-index:1;align-items:center;gap:var(--space-2);padding:calc(var(--safe-area-top) + var(--space-2)) calc(var(--safe-area-right) + var(--space-4)) var(--space-2) calc(var(--safe-area-left) + var(--space-2));background:var(--color-bg);border-bottom:1px solid var(--color-border);display:flex;position:sticky;top:0}.player__exit{min-width:var(--tap-target);min-height:var(--tap-target);color:var(--color-text);border-radius:var(--radius-md);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.player__progress{flex:1}.player__main{align-content:start;gap:var(--space-5);display:grid}.stimulus__head{align-items:center;gap:var(--space-2) var(--space-3);margin-bottom:var(--space-3);flex-wrap:wrap;display:flex}.stimulus__title{max-width:none;font-size:var(--text-base);font-weight:var(--weight-semibold);letter-spacing:-.01em;line-height:var(--leading-snug);margin:0}.stimulus__text{max-width:34rem;margin:0 0 var(--space-3);line-height:var(--leading-normal)}.rich-text__math--display{max-width:100%;margin:var(--space-3) 0;display:block;overflow-x:auto}.player__visual{color:var(--color-primary);justify-content:center;display:flex}.player__visual svg{width:min(100%,16rem);height:auto}.player__visual-image{box-sizing:border-box;width:min(100%,32rem);max-width:100%;height:auto;padding:var(--space-3);background:var(--color-diagram-paper);border-radius:var(--radius-md);margin-inline:auto;display:block}.player__stem{font-size:var(--text-lg);font-weight:var(--weight-semibold);letter-spacing:-.02em;line-height:var(--leading-snug)}.player__stem p{max-width:none;margin:0 0 var(--space-2)}.player__stem p:last-child{margin-bottom:0}.player__stem .rich-blocks__table{font-size:var(--text-sm);font-weight:var(--weight-regular);letter-spacing:normal}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.player__alternatives{gap:var(--space-3);display:grid}.alt-card{justify-content:flex-start}.alt-card:disabled{cursor:default}.alt-card__letter{width:2.25rem;height:2.25rem;color:var(--color-primary);background:var(--color-primary-subtle);border:1px solid var(--color-border);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:var(--weight-bold);flex-shrink:0;place-items:center;display:grid}.selection-card[aria-checked=true] .alt-card__letter{color:var(--color-primary);border-color:var(--color-primary)}.alt-card__content{min-width:0;line-height:var(--leading-snug);overflow-wrap:anywhere;flex:1}.selection-card.alt-card--correct,.selection-card.alt-card--correct .alt-card__letter{color:var(--color-success);border-color:var(--color-success)}.selection-card.alt-card--correct{color:var(--color-text);background:var(--color-success-subtle)}.selection-card.alt-card--incorrect,.selection-card.alt-card--incorrect .alt-card__letter{color:var(--color-error);border-color:var(--color-error)}.selection-card.alt-card--incorrect{color:var(--color-text);background:var(--color-error-subtle)}.selection-card.alt-card--muted{opacity:.55}.alt-card__mark{flex-shrink:0;display:inline-flex}.alt-card__mark svg{width:1.05rem;height:1.05rem}.alt-card__mark--correct{color:var(--color-success)}.alt-card__mark--incorrect{color:var(--color-error)}.player__feedback:empty{display:none}.player__banner{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-weight:var(--weight-bold);border:1px solid;margin:0}.player__banner--correct{color:var(--color-success);background:var(--color-success-subtle);border-color:var(--color-success)}.player__banner--incorrect{color:var(--color-error);background:var(--color-error-subtle);border-color:var(--color-error)}.player__badge{padding:var(--space-2) var(--space-4);width:fit-content;color:var(--color-bg);background:var(--color-primary);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.06em;text-transform:uppercase;margin:0}.player__labels{gap:var(--space-2);flex-wrap:wrap;align-items:center;display:flex}.player__course{padding:var(--space-2) var(--space-4);color:var(--color-primary);background:color-mix(in oklab, var(--color-primary) 12%, var(--color-surface));border:1px solid color-mix(in oklab, var(--color-primary) 40%, var(--color-border));border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.04em;margin:0}.player__placement{color:var(--color-primary);font-size:var(--text-sm);font-weight:var(--weight-semibold);margin:0}.player__stem--fija{padding:var(--space-5);background:var(--color-surface);border:1px solid color-mix(in oklab, var(--color-primary) 35%, var(--color-border));border-radius:var(--radius-lg)}.player__answer{gap:var(--space-1);padding:var(--space-4);color:var(--color-bg);background:var(--color-primary);border-radius:var(--radius-lg);margin:0;display:grid}.player__answer-label{font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.08em;text-transform:uppercase}.player__answer-value{font-size:var(--text-base);font-weight:var(--weight-semibold);line-height:var(--leading-snug)}.player__lesson{gap:var(--space-3);display:grid}.player__explanation-title{max-width:none;font-size:var(--text-lg);font-weight:var(--weight-semibold);letter-spacing:-.02em;margin:0}.lesson{gap:var(--space-3);display:grid}.lesson__lead{color:var(--color-text-muted);line-height:var(--leading-normal)}.lesson-card{gap:var(--space-2);padding:var(--space-4);background:var(--color-surface);border:1px solid color-mix(in oklab, var(--color-primary) 28%, var(--color-border));border-radius:var(--radius-lg);display:grid}.lesson-card__eyebrow{align-items:center;gap:var(--space-2);color:var(--color-primary);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.08em;text-transform:uppercase;margin:0;display:flex}.lesson-card__step{width:1.5rem;height:1.5rem;color:var(--color-bg);background:var(--color-primary);border-radius:var(--radius-full);font-size:var(--text-xs);letter-spacing:0;justify-content:center;align-items:center;display:inline-flex}.lesson-card__title{color:var(--color-text);font-size:var(--text-base);font-weight:var(--weight-semibold);line-height:var(--leading-snug);margin:0}.tip-neura{align-items:flex-start;gap:var(--space-4);margin:var(--space-4) 0;padding:var(--space-5);border:2px solid var(--color-learning-amber);border-radius:var(--radius-lg);background:radial-gradient(ellipse at top left, color-mix(in oklab, var(--color-learning-amber) 16%, transparent), transparent 75%), var(--glass-surface);-webkit-backdrop-filter:blur(16px);box-shadow:0 0 32px -4px color-mix(in oklab, var(--color-learning-amber) 35%, transparent), 0 8px 24px #0006;display:flex}.tip-neura__icon{filter:drop-shadow(0 0 8px var(--color-learning-amber));flex-shrink:0;font-size:1.6rem}.tip-neura__text{font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text);margin:0}.tip-neura__label{margin-right:var(--space-2);border:1px solid var(--color-learning-amber);border-radius:var(--radius-sm);background:color-mix(in oklab, var(--color-learning-amber) 15%, transparent);color:var(--color-learning-amber);font-size:var(--text-sm);font-weight:var(--weight-bold);letter-spacing:.08em;text-transform:uppercase;padding:2px 8px;display:inline-block}.player__explanation{color:var(--color-text-muted);line-height:var(--leading-normal)}.explanation__label{margin:var(--space-4) 0 var(--space-1);color:var(--color-text);font-weight:var(--weight-semibold)}.explanation__label:first-child{margin-top:0}.explanation__text{margin:0 0 var(--space-2);color:var(--color-text-muted)}.explanation__text:last-child{margin-bottom:0}.rich-blocks__list{margin:0 0 var(--space-2);padding-left:var(--space-5)}.rich-blocks__list:last-child{margin-bottom:0}.rich-blocks__list li+li{margin-top:var(--space-1)}.rich-blocks__table{max-width:100%;margin:0 0 var(--space-2);overflow-x:auto}.rich-blocks__table:last-child{margin-bottom:0}.rich-blocks__table table{border-collapse:collapse;line-height:var(--leading-normal)}.rich-blocks__table th,.rich-blocks__table td{padding:var(--space-1) var(--space-3);border:1px solid var(--color-border);text-align:left;vertical-align:top}.rich-blocks__table th{font-weight:var(--weight-semibold);background:var(--color-surface)}.player__actions{padding:var(--space-3) calc(var(--safe-area-right) + var(--space-4)) calc(var(--safe-area-bottom) + var(--space-3)) calc(var(--safe-area-left) + var(--space-4));background:var(--color-bg);border-top:1px solid var(--color-border);display:grid;position:sticky;bottom:0}.player__actions .button{justify-self:center;width:100%;max-width:40rem}.empty-state__icon{margin-bottom:var(--space-3);color:var(--color-text-muted)}.empty-state--error .empty-state__icon{color:var(--color-error)}.empty-state__title{max-width:none;margin:0 0 var(--space-2);font-size:var(--text-xl);letter-spacing:-.03em;line-height:var(--leading-snug)}.empty-state__actions{gap:var(--space-3);margin-top:var(--space-5);display:grid}.results__headline{max-width:none;margin:0 0 var(--space-2);font-size:var(--text-lg);letter-spacing:-.02em;line-height:var(--leading-snug)}.results__count{font-size:var(--text-2xl);font-weight:var(--weight-semibold);letter-spacing:-.04em;line-height:var(--leading-tight)}.results__bar{margin-top:var(--space-4)}.results-list{gap:var(--space-3);margin:0;padding:0;list-style:none;display:grid}.results-row{gap:var(--space-3);padding:var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);display:flex}.results-row__mark{border-radius:var(--radius-full);flex-shrink:0;place-items:center;width:1.75rem;height:1.75rem;display:grid}.results-row__mark svg{width:1.05rem;height:1.05rem}.results-row__mark--correct{color:var(--color-success);background:var(--color-success-subtle)}.results-row__mark--incorrect{color:var(--color-error);background:var(--color-error-subtle)}.results-row__text{min-width:0}.results-row__stem{line-height:var(--leading-snug);-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;margin:0;display:-webkit-box;overflow:hidden}.results-row__answer{margin:var(--space-1) 0 0;color:var(--color-text-muted);font-size:var(--text-sm);line-height:var(--leading-snug);overflow-wrap:anywhere}.review,.profile{gap:var(--space-5);display:grid}.card-head{align-items:center;gap:var(--space-2) var(--space-3);margin-bottom:var(--space-2);flex-wrap:wrap;display:flex}.card-head__title{max-width:none;font-size:var(--text-lg);letter-spacing:-.02em;line-height:var(--leading-snug);margin:0}.app-info{color:var(--color-text-muted);font-size:var(--text-xs);margin:0}.player-done__actions{gap:var(--space-3);margin-top:var(--space-5);display:grid}:focus-visible{outline:3px solid var(--color-focus-ring);outline-offset:3px}.hero-stage{gap:var(--space-4);padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);display:grid}.hero-stage__kicker{color:var(--color-primary);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.08em;text-transform:uppercase;margin:0}.hero-stage__list{gap:var(--space-4);margin:0;padding:0;list-style:none;display:grid}.hero-stage__row{gap:var(--space-1);display:grid}.hero-stage__subject{color:var(--color-text-muted);font-size:var(--text-xs);font-weight:var(--weight-semibold);letter-spacing:.04em;text-transform:uppercase}.hero-stage__formula{min-height:1.6em;font-size:var(--text-lg);line-height:var(--leading-snug);display:block}.hero-stage__hold{background:var(--color-primary-subtle);border-radius:var(--radius-sm);width:70%;height:.85em;margin-top:.35em;display:block}.hero-stage__figure{width:min(100%,12rem);height:auto;color:var(--color-primary)}@media (width>=48rem){.app-shell{padding:1.75rem 3rem}.hero{padding-bottom:4rem}.how-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.bottom-nav{grid-template-columns:repeat(2,minmax(0,9rem));justify-content:center}.course-list{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=64rem){.hero{align-items:center;gap:var(--space-10);grid-template-columns:minmax(0,1.05fr) minmax(18rem,.85fr)}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.skip-link,.button,.step-progress__fill{transition:none}}.crumbs{align-items:center;gap:var(--space-2);flex-wrap:wrap;margin-block-end:var(--space-4);display:flex}.crumbs__crumb{color:var(--color-accent);font:inherit;cursor:pointer;background:0 0;border:0;padding:0;text-decoration:underline}.crumbs__crumb:after{content:" /";color:var(--color-text-muted)}.crumbs__current{color:var(--color-text-muted)}.pick-list{gap:var(--space-2);margin:0;padding:0;list-style:none;display:grid}.pick{text-align:start;width:100%;padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);font:inherit;cursor:pointer;flex-direction:column;gap:2px;display:flex}.pick__title{font-weight:var(--weight-semibold)}.pick__meta{color:var(--color-text-muted);font-size:var(--text-sm)}.topic-name{font-weight:var(--weight-semibold);margin-block-end:var(--space-2)}.concept-list{color:var(--color-text-muted);margin:0;padding-inline-start:var(--space-4)}.concept-list__item{justify-content:space-between;align-items:center;gap:var(--space-2);padding-block:2px;display:flex}.concept-list__practice{border:1px solid var(--color-border);border-radius:var(--radius-sm,6px);background:var(--color-surface);color:var(--color-accent);font:inherit;font-size:var(--text-sm);padding:2px var(--space-2);cursor:pointer}.learning-hub,.review{gap:var(--space-8);display:grid}.learning-hero{border:1px solid var(--color-border);background:radial-gradient(ellipse at top right, var(--color-primary-subtle), transparent 70%), var(--color-surface);border-radius:1.5rem;padding:clamp(1.5rem,5vw,3rem)}.learning-hero h2,.review-intro h2,.learning-complete h2{max-width:22ch;margin:var(--space-3) 0 var(--space-5);letter-spacing:-.035em;font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.15}.learning-hero>p,.review-intro>p{max-width:58ch;line-height:1.65}.learning-actions{gap:var(--space-3);margin-top:var(--space-6);flex-wrap:wrap;align-items:center;display:flex}.learning-grid{gap:var(--space-4);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.learning-card{gap:var(--space-4);padding:var(--space-6);border:1px solid var(--border-cyan-subtle);border-radius:var(--radius-lg);background:var(--glass-surface);-webkit-backdrop-filter:blur(12px);transition:border-color var(--duration-base), background var(--duration-base), transform var(--duration-base), box-shadow var(--duration-base);text-decoration:none;display:flex;box-shadow:0 4px 20px #00000040}.learning-card:hover{border-color:var(--color-primary);background:var(--color-surface-raised);box-shadow:0 0 24px var(--glow-cyan-subtle);transform:translateY(-2px)}.learning-card h3{margin:0 0 var(--space-3);font-size:var(--text-lg);color:var(--color-primary);line-height:1.35;font-weight:var(--weight-bold)}.learning-card p{color:var(--color-text-muted);line-height:1.65}.learning-card__number{color:var(--color-primary);background:var(--glow-cyan-subtle);font-size:var(--text-sm);font-weight:var(--weight-bold);font-variant-numeric:tabular-nums;border-radius:var(--radius-sm);border:1px solid var(--border-cyan-subtle);align-self:flex-start;padding:4px 8px}.learning-card__action{color:var(--color-primary);font-weight:var(--weight-semibold);margin-top:var(--space-5);display:block}.learning-card .learning-card__meta{font-size:var(--text-sm)}.target-strip{justify-content:space-between;align-items:center;gap:var(--space-5);padding:var(--space-5);border-left:3px solid var(--color-primary);display:flex}.target-strip h3,.target-strip p{margin:var(--space-2) 0}.top-bar__profile{width:2.25rem;min-width:2.25rem;height:2.25rem;min-height:2.25rem;color:var(--color-text-muted);border:1px solid var(--border-cyan-subtle);border-radius:var(--radius-full);background:color-mix(in oklab, var(--color-surface-raised) 70%, transparent);transition:all var(--duration-fast) var(--ease-standard);justify-content:center;align-items:center;margin-left:auto;display:inline-flex}.top-bar__profile:hover{color:var(--color-primary);border-color:var(--color-primary);background:var(--glow-cyan-subtle);box-shadow:0 0 12px -2px var(--border-cyan-subtle);transform:scale(1.05)}.learning-player{max-width:46rem;margin:0 auto}.learning-player__header{justify-content:space-between;align-items:center;gap:var(--space-4);margin-bottom:var(--space-4);display:flex}.learning-player__header a{color:var(--color-text-muted);font-size:var(--text-sm)}.learning-step{padding:var(--space-6) 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var(--space-4));padding-inline:var(--space-4);scroll-padding-inline:var(--space-4);display:flex;overflow-x:auto}.picker-chips::-webkit-scrollbar{display:none}.picker-segments::-webkit-scrollbar{display:none}.picker-chip{min-height:var(--tap-target);padding:0 var(--space-4);color:var(--color-text-muted);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-full);font:inherit;font-size:var(--text-sm);white-space:nowrap;cursor:pointer;flex:none}.picker-chip[aria-checked=true]{color:var(--color-primary);border-color:var(--color-primary);background:var(--color-primary-subtle);font-weight:var(--weight-semibold)}.picker-chip__count{margin-left:var(--space-1);padding:0 var(--space-2);background:var(--color-surface-raised);color:var(--color-text-muted);font-size:var(--text-xs);font-weight:var(--weight-semibold);font-variant-numeric:tabular-nums;border-radius:999px}.picker-segments .picker-chip{border-radius:var(--radius-sm)}.picker-chip:focus-visible,.career-card:focus-visible,.picker-continue:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:2px}.picker{align-content:start;gap:var(--space-4);display:grid}.picker-workspace{gap:var(--space-5);min-width:0;display:grid}.picker-workspace__list{align-content:start;gap:var(--space-4);min-width:0;display:grid}.picker-summary{align-content:start;gap:var(--space-4);min-width:0;padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);display:grid}.picker-summary>.eyebrow{color:var(--color-primary);font-weight:var(--weight-bold);margin:0}.picker-summary dl{gap:var(--space-3);margin:0;display:grid}.picker-summary dl>div{gap:var(--space-1);display:grid}.picker-summary dt,.picker-summary__current>span{color:var(--color-text-muted);font-size:var(--text-xs)}.picker-summary dd{font-weight:var(--weight-semibold);overflow-wrap:anywhere;margin:0}.picker-summary__current{gap:var(--space-1);padding:var(--space-3);border-radius:var(--radius-md);background:var(--color-primary-subtle);display:grid}.picker-summary__current small{color:var(--color-text-muted)}.picker-summary__actions{gap:var(--space-2);padding-top:var(--space-2);border-top:1px solid var(--color-border);display:grid}.picker-choice{align-items:center;gap:var(--space-1) var(--space-3);width:100%;min-height:4.25rem;padding:var(--space-4);color:var(--color-text);text-align:left;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);font:inherit;cursor:pointer;grid-template-columns:minmax(0,1fr) auto;display:grid}.picker-choice strong,.picker-choice>span:nth-child(2){grid-column:1}.picker-choice>span:nth-child(2){color:var(--color-text-muted);font-size:var(--text-sm)}.picker-choice>span:last-child{color:var(--color-primary);font-size:var(--text-xl);grid-area:1/2/span 2}.picker-choice:hover,.picker-choice--selected{border-color:var(--color-primary);background:var(--color-primary-subtle)}.picker-choice:focus-visible,.picker-summary a:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:3px}.picker-mobile-actions{z-index:5;gap:var(--space-2);padding:var(--space-3) calc(var(--safe-area-right) + var(--space-4)) calc(var(--safe-area-bottom) + var(--space-3)) calc(var(--safe-area-left) + var(--space-4));border-top:1px solid var(--color-border);background:color-mix(in srgb, var(--color-bg) 94%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);grid-template-columns:minmax(0,1fr) auto;display:grid;position:fixed;bottom:0;left:0;right:0}.picker-mobile-actions .button:first-child{min-width:0}.picker-mobile-actions .button:last-child{padding-inline:var(--space-3)}.picker--career{padding-bottom:calc(8rem + var(--safe-area-bottom))}.picker--career .picker-search__input{margin-bottom:var(--space-2)}.picker-continue{gap:var(--space-1);min-height:var(--tap-target);padding:var(--space-4) var(--space-5);color:var(--color-text);background:var(--color-primary-subtle);border:1px solid var(--color-primary);border-radius:var(--radius-lg);text-decoration:none;display:grid}.picker-continue__label{color:var(--color-primary);font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.06em;text-transform:uppercase}.picker-list{gap:var(--space-2);margin:0;padding:0;list-style:none;display:grid}.career-card{gap:var(--space-1);width:100%;min-height:var(--tap-target);padding:var(--space-3) var(--space-4);color:var(--color-text);text-align:left;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);font:inherit;cursor:pointer;display:grid}.career-card:hover:not(:disabled){border-color:var(--color-primary)}.career-card:disabled{cursor:not-allowed;opacity:.6}.career-card--selected,.career-card--single{border-color:var(--color-primary);background:var(--color-primary-subtle);box-shadow:0 0 0 1px var(--color-primary)}.career-card__name{font-weight:var(--weight-semibold);line-height:var(--leading-snug);overflow-wrap:anywhere}.career-card__meta,.career-card__note{color:var(--color-text-muted);font-size:var(--text-sm)}.career-card--single .career-card__note{color:var(--color-primary);font-weight:var(--weight-semibold)}.picker-more{padding:var(--space-4) 0;justify-items:center;display:grid}.goal-card__actions{justify-items:start;gap:var(--space-3);flex:none;display:grid}.goal-card__change{color:var(--color-text-muted);font-size:var(--text-sm);font-weight:var(--weight-medium);letter-spacing:-.01em;min-height:var(--tap-target);align-items:center;gap:var(--space-1);padding:0 var(--space-2);border-radius:var(--radius-sm);transition:color var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);text-decoration:none;display:inline-flex}.goal-card__change:hover{color:var(--color-primary);transform:translate(2px)}.goal-card__change:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.progress-summary{gap:var(--space-2);display:grid}.progress-summary h2{margin:0}.progress-summary__figures{color:var(--color-text-muted);margin:0}.progress-summary__figures strong{color:var(--color-text);font-variant-numeric:tabular-nums}a.route-suggestion{color:var(--color-text);text-decoration:none;display:grid}.results-row__lesson{min-height:var(--tap-target);color:var(--color-primary);font-size:var(--text-sm);text-underline-offset:.2em;align-items:center;display:inline-flex}@media (width<=40rem){.goal-card{flex-direction:column;align-items:stretch}.goal-card__actions{justify-items:stretch}.goal-card__actions .button{width:100%}}@media (width>=64rem){.picker-header{position:sticky}.picker-heading,.picker-steps,.picker-search{width:min(100%,80rem)}.shell__main.picker{width:min(100%,80rem);padding-inline:calc(var(--safe-area-left) + var(--space-7)) calc(var(--safe-area-right) + var(--space-7))}.picker-workspace{align-items:start;gap:var(--space-6);grid-template-columns:minmax(0,1fr) minmax(18rem,23rem)}.picker-summary{top:var(--space-5);position:sticky}.picker-mobile-actions{display:none}.picker--career{padding-bottom:calc(var(--space-8) + var(--safe-area-bottom))!important}.shell:has(>.bottom-nav)>.shell__main:not(.picker){width:min(100%,80rem)}.shell__main.player__main{width:min(100%,72rem)}}@media (width<=63.999rem){.picker-summary{order:-1}.picker-mobile-actions,.picker-summary__actions{display:none}.picker--career:has(.career-card--selected){padding-bottom:calc(8rem + var(--safe-area-bottom))}.picker-mobile-actions:has(button){display:grid}.picker-summary:has(.picker-summary__actions){order:0}}.install-sheet{align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);color:var(--color-text);background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:var(--radius-md);grid-template-columns:auto 1fr;display:grid}.install-sheet--home{right:calc(var(--safe-area-right) + var(--space-3));bottom:calc(var(--bottom-nav-height) + var(--safe-area-bottom) + var(--space-3));left:calc(var(--safe-area-left) + var(--space-3));z-index:3;max-width:30rem;margin:0 auto;position:fixed;box-shadow:0 .5rem 1.5rem #00000059}.shell:has(.install-sheet--home)>.shell__main{padding-bottom:calc(var(--bottom-nav-height) + var(--safe-area-bottom) + 10rem)}.install-sheet--results{width:min(calc(100% - var(--space-8)), 40rem);margin:0 auto calc(var(--safe-area-bottom) + var(--space-6))}.install-sheet__icon{border-radius:var(--radius-sm);width:2.5rem;height:2.5rem}.install-sheet__copy{gap:var(--space-1);min-width:0;display:grid}.install-sheet__copy p,.install-sheet__steps{color:var(--color-text-muted);font-size:var(--text-sm);margin:0}.install-sheet__steps{padding-left:1.25rem}.install-sheet__title{max-width:none;font-size:var(--text-base);margin:0}.install-sheet__share{vertical-align:middle;color:var(--color-primary);display:inline-flex}.install-sheet__share svg{width:1.1rem;height:1.1rem}.install-sheet__actions{justify-content:flex-end;gap:var(--space-2);flex-wrap:wrap;grid-column:1/-1;display:flex}@media (width>=64rem){.install-sheet--home{bottom:calc(var(--safe-area-bottom) + var(--space-4));left:calc(var(--rail-width,6rem) + var(--safe-area-left) + var(--space-4))}.shell:has(.install-sheet--home)>.shell__main{padding-bottom:calc(var(--safe-area-bottom) + 10rem)}}.update-notice{top:calc(var(--safe-area-top) + var(--space-3));right:calc(var(--safe-area-right) + var(--space-3));left:calc(var(--safe-area-left) + var(--space-3));z-index:15;justify-content:space-between;align-items:center;gap:var(--space-3);max-width:28rem;padding:var(--space-2) var(--space-2) var(--space-2) var(--space-4);color:var(--color-text);background:var(--color-surface-raised);border:1px solid var(--color-primary);border-radius:var(--radius-full);font-size:var(--text-sm);margin:0 auto;display:flex;position:fixed;box-shadow:0 .5rem 1.5rem #00000059}.update-notice__action{min-height:var(--tap-target);padding:0 var(--space-4);color:var(--color-on-primary);background:var(--color-primary);border-radius:var(--radius-full);font:inherit;font-weight:var(--weight-semibold);cursor:pointer;border:0}@media (width>=64rem){.update-notice{top:auto;right:calc(var(--safe-area-right) + var(--space-6));bottom:calc(var(--safe-area-bottom) + var(--space-6));margin:0;left:auto}}.update-notice>span{flex:1;min-width:0}.update-notice__close{width:var(--tap-target);height:var(--tap-target);color:var(--color-text-muted);border-radius:var(--radius-full);cursor:pointer;background:0 0;border:0;place-items:center;padding:0;display:inline-grid}.update-notice__close svg{width:1.1rem;height:1.1rem}.update-notice__action:focus-visible,.update-notice__close:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:2px}.content-figure{min-width:0;margin:0}.content-figure>img,.content-figure>canvas{object-fit:contain;border-radius:var(--radius-md);background:#fff;width:100%;max-height:none;display:block}.content-figure figcaption{margin-top:var(--space-2);justify-content:flex-end;display:flex}.figure-dialog{width:min(96vw,80rem);max-width:calc(100vw - var(--safe-area-left) - var(--safe-area-right) - 1rem);color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:0}.figure-dialog::backdrop{background:#000c}.figure-dialog__toolbar{align-items:center;gap:var(--space-3);padding:var(--space-3);flex-wrap:wrap;display:flex}.figure-dialog__toolbar>label{gap:var(--space-3);flex:1;align-items:center;min-width:0;display:flex}.figure-dialog__toolbar input{width:100%;min-width:0;min-height:var(--tap-target)}.figure-dialog__toolbar output{width:3.5rem}.figure-dialog__viewport{max-height:calc(85dvh - var(--safe-area-top) - var(--safe-area-bottom) - 6rem);background:#fff;overflow:auto}.figure-dialog__viewport img,.figure-dialog__viewport canvas{height:auto;display:block}.simulation-days{grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr));gap:1rem;display:grid}.simulation-controls{margin-block-end:1rem}.simulation-index{grid-template-columns:repeat(auto-fill,minmax(2.75rem,1fr));gap:.5rem;margin-block:1rem;display:grid}.simulation-index button{border:1px solid var(--color-border);min-height:2.75rem;color:inherit;background:0 0;border-radius:.5rem}.simulation-index button.is-answered{background:var(--color-primary);color:var(--color-on-primary)}.simulation-index button[aria-current=true]{outline:2px solid var(--color-primary);outline-offset:2px}.results-row__solution{margin-block:1rem}.results-row__solution summary{cursor:pointer;align-items:center;min-height:2.75rem;display:flex}#learning-explanation-title{scroll-margin-block-start:5.5rem}
/*$vite$:1*/