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.ring__fill{stroke:var(--sys, var(--oxblood))}.ring__center{grid-area:1 / 1;font-family:var(--font-display);font-size:1.1rem;font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--ink)}.ring__label{max-width:12ch;font-size:10px;font-weight:600;letter-spacing:.11em;line-height:1.4;text-align:center;text-transform:uppercase;color:var(--ink-3)}.meter{display:flex;flex-direction:column;gap:8px}.meter__head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:var(--text-xs);font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}.meter__value{color:var(--ink-2)}.meter__track{height:4px;border-radius:var(--radius-pill);background:color-mix(in srgb,var(--ink) 10%,transparent);overflow:hidden}.meter__fill{display:block;height:100%;border-radius:inherit;background:var(--oxblood);transition:width .9s var(--ease)}.meter--gold .meter__fill{background:var(--gold)}.meter--sys .meter__fill{background:var(--sys, var(--oxblood))}.skeleton{display:block;border-radius:var(--radius-sm);background:linear-gradient(100deg,color-mix(in srgb,var(--paper-3) 70%,transparent) 18%,color-mix(in srgb,var(--paper-2) 92%,transparent),color-mix(in srgb,var(--paper-3) 70%,transparent) 58%);background-size:240% 100%;animation:skeleton-sweep 1.7s linear infinite}.skeleton--circle{border-radius:50%}@keyframes skeleton-sweep{0%{background-position:175% 0}to{background-position:-65% 0}}@media(prefers-reduced-motion:reduce){.skeleton{animation:none;opacity:.65}.live__dot:after,.scroll-top,.shell-mobile,.stage .skeleton{animation:none;transition:none}}.empty{display:flex;flex-direction:column;align-items:flex-start;gap:12px;padding:clamp(28px,4.5vw,48px);border:1px dashed var(--line-strong);border-radius:var(--radius-lg);background:color-mix(in srgb,var(--white) 26%,transparent)}.empty--sm{gap:8px;padding:24px}.empty__icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:2px;border:1px solid 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color-mix(in srgb,var(--sys) 30%,transparent);border-radius:50%;background:color-mix(in srgb,var(--sys) 8%,transparent);color:var(--sys);transition:transform var(--dur) var(--ease),background var(--dur) var(--ease)}.system-card:hover .system-card__icon{transform:rotate(-7deg) scale(1.05);background:color-mix(in srgb,var(--sys) 15%,transparent)}.system-card__title{font-family:var(--font-display);font-size:clamp(1.2rem,1.7vw,1.45rem);font-weight:500;letter-spacing:-.02em}.system-card__tagline{max-width:33ch;font-size:var(--text-sm);line-height:1.55;color:var(--ink-2)}.system-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}.system-card__count{font-size:10px;font-weight:600;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-3)}.system-card__cta{display:inline-flex;align-items:center;gap:5px;font-size:10px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);transition:color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease)}.system-card:hover .system-card__cta{color:var(--oxblood);transform:translate(2px)}.organ-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(228px,1fr));gap:14px}.organ-card{position:relative;display:flex;flex-direction:column;gap:7px;padding:22px 22px 26px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--white) 32%,transparent);color:var(--ink);text-decoration:none;transition:transform var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease)}.organ-card:after{content:"";position:absolute;right:0;bottom:0;left:0;height:2px;background:var(--sys, var(--gold));transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}.organ-card:hover{border-color:var(--line-strong);background:color-mix(in srgb,var(--sys) 4%,var(--paper));color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.organ-card:hover:after{transform:scaleX(1)}.organ-card__head{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:18px}.organ-card__index{font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--ink-3)}.organ-card__latin{overflow:hidden;font-family:var(--font-display);font-size:var(--text-sm);font-style:italic;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-3)}.organ-card__system{display:inline-flex;align-items:center;gap:5px;font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:color-mix(in srgb,var(--sys, 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44%,var(--stage) 82%);box-shadow:var(--shadow-stage);color:var(--paper)}.stage:after{content:"";position:absolute;inset:10px;z-index:2;border:1px solid rgba(244,238,227,.08);border-radius:calc(var(--radius-xl) - 8px);pointer-events:none}.stage--hero{min-height:clamp(520px,66vh,660px)}.stage--system{min-height:clamp(440px,56vh,600px)}.stage--organ{min-height:clamp(420px,54vh,560px)}.stage--explore{min-height:100%;border-radius:0;box-shadow:none}.stage__aura{position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(46% 40% at 50% 36%,color-mix(in srgb,var(--gold) 15%,transparent),transparent 72%)}.stage__grid{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.42;background-image:linear-gradient(to right,var(--line-light) 1px,transparent 1px),linear-gradient(to bottom,var(--line-light) 1px,transparent 1px);background-size:76px 76px;-webkit-mask-image:radial-gradient(62% 58% at 50% 44%,#000 18%,transparent 76%);mask-image:radial-gradient(62% 58% at 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55%}.stage__loading-lines{display:flex;flex-direction:column;align-items:center;gap:8px}.stage__loading-label{font-size:9px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:color-mix(in srgb,var(--paper) 48%,transparent)}.stage__error{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:32px;text-align:center}.stage__error-title{font-family:var(--font-display);font-size:1.35rem;color:var(--paper)}.stage__error-copy{max-width:44ch;font-size:var(--text-sm);line-height:1.6;color:color-mix(in srgb,var(--paper) 68%,transparent)}.shell-header{position:sticky;top:0;z-index:var(--z-header);border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--paper) 84%,transparent);backdrop-filter:blur(16px) saturate(1.15);transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}.shell-header.is-scrolled{background:color-mix(in srgb,var(--paper) 93%,transparent);box-shadow:0 12px 32px 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var(--ease)}.shell-nav__link:after{content:"";position:absolute;right:0;bottom:5px;left:0;height:1px;background:var(--oxblood);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}.shell-nav__link:hover{color:var(--ink)}.shell-nav__link:hover:after,.shell-nav__link.is-active:after{transform:scaleX(1)}.shell-nav__link.is-active{color:var(--ink)}.shell-actions{display:flex;align-items:center;gap:8px}.shell-search{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 10px 0 12px;border:1px solid var(--line);border-radius:var(--radius-pill);background:color-mix(in srgb,var(--white) 44%,transparent);font-size:var(--text-xs);font-weight:550;letter-spacing:.02em;color:var(--ink-3);transition:border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease)}.shell-search:hover{border-color:var(--line-strong);background:var(--white);color:var(--ink)}.shell-search kbd{padding:2px 5px;border:1px solid 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.brand{margin-bottom:18px}.shell-footer__mission{max-width:40ch;font-family:var(--font-display);font-size:clamp(1.08rem,1.6vw,1.3rem);line-height:1.45;letter-spacing:-.012em;color:var(--ink-2)}.shell-footer__note{margin-top:16px;font-size:10px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}.shell-footer__nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5)}.shell-footer__col{display:flex;flex-direction:column;gap:10px;align-items:flex-start}.shell-footer__col .caps{margin-bottom:4px;color:var(--ink-3)}.shell-footer__col a{display:inline-flex;align-items:center;gap:6px;font-size:var(--text-sm);color:var(--ink-2);text-decoration:none}.shell-footer__col a:hover{color:var(--oxblood)}.shell-footer__legal{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);flex-wrap:wrap;padding-block:20px;border-top:1px solid 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var(--line);border-radius:50%;color:var(--oxblood);background:color-mix(in srgb,var(--white) 40%,transparent)}.search-result__text{min-width:0;flex:1}.search-result__title{display:block;font-family:var(--font-display);font-size:1.05rem;font-weight:550;letter-spacing:-.012em;line-height:1.25}.search-result__meta{display:block;margin-top:2px;font-size:10.5px;letter-spacing:.045em;text-transform:uppercase;color:var(--ink-2)}.search-result__snippet{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:4px;font-size:var(--text-xs);line-height:1.5;color:var(--ink-3)}.search-highlight{color:var(--ink);background:color-mix(in srgb,var(--gold) 30%,transparent);border-radius:2px;padding:0 1px}.search-result__arrow{flex-shrink:0;align-self:center;color:var(--ink-4);opacity:0;transform:translate(-3px);transition:opacity var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease)}.search-result:hover .search-result__arrow,.search-result:focus-visible .search-result__arrow{opacity:1;transform:none}.search-dialog__empty,.search-dialog__start{padding:20px 14px 12px}.search-dialog__empty-title{font-family:var(--font-display);font-size:1.35rem;font-weight:500;margin-bottom:6px}.search-dialog__start-title{font-family:var(--font-display);font-size:1.35rem;font-weight:500}.search-dialog__start>.small{margin-top:4px}.search-dialog__suggestions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.search-suggestion{padding:7px 13px;border:1px solid var(--line);border-radius:var(--radius-pill);font-size:var(--text-xs);font-weight:550;color:var(--ink-2);background:color-mix(in srgb,var(--white) 38%,transparent);transition:border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease)}.search-suggestion:hover{border-color:var(--oxblood);color:var(--oxblood)}.search-dialog__shortcuts{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}.search-dialog__shortcut{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border-radius:var(--radius-sm);font-size:var(--text-xs);color:var(--ink-3);text-decoration:none}.search-dialog__shortcut:hover{background:color-mix(in srgb,var(--ink) 5%,transparent);color:var(--ink)}.search-dialog__footer{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:11px 20px;border-top:1px solid var(--line);background:color-mix(in srgb,var(--paper-2) 70%,transparent);font-size:10.5px;color:var(--ink-3)}.search-dialog__footer span{display:inline-flex;align-items:center;gap:4px}.search-dialog__footer kbd{font-family:var(--font-mono);font-size:10px;padding:1px 5px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink-3)}@media(max-width:1080px){.lesson-reader__body{grid-template-columns:minmax(0,1fr) 272px;gap:40px}}@media(max-width:960px){.lesson-reader__body{grid-template-columns:1fr}.lesson-reader__rail{position:static;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));align-items:start}.learn-hero,.quiz-hub__hero{grid-template-columns:1fr;align-items:start}.continue-card{max-width:520px}.progress-dash__stats{grid-template-columns:1fr;gap:20px}}@media(max-width:720px){.lesson-step{padding:24px 20px}.lesson-step__prose{font-size:1.0625rem}.lesson-step__title{font-size:clamp(1.6rem,7vw,2rem)}.step-progress__stop{width:27px;height:27px}.lesson-nav{flex-direction:column-reverse;align-items:stretch}.lesson-nav .btn{width:100%}.lesson-nav__hint{text-align:center}.lesson-finish__next{margin-left:0;width:100%;justify-content:flex-start}.learn-hero__stats{flex-wrap:wrap;gap:20px 32px}.learn-lesson-card{padding:22px}.quiz-play__top{flex-direction:column;align-items:stretch;gap:10px}.quiz-play__progress{gap:10px}.quiz-play__leave{align-self:flex-end}.question-card{padding:22px 18px}.quiz-option{padding:13px 14px;gap:11px}.quiz-option__text{font-size:var(--text-base)}.question-card__actions{flex-direction:column;align-items:stretch}.question-card__actions .btn{width:100%}.question-card__hint{text-align:center}.result-summary__header{grid-template-columns:1fr;justify-items:center;text-align:center;padding:26px 20px}.result-summary__intro .eyebrow{justify-content:center}.result-summary__actions{flex-direction:column;align-items:stretch}.result-summary__actions .btn{width:100%}.result-review__item{padding:18px 16px}.result-review__answers>div{flex-direction:column;gap:2px}.result-review__answers dt{min-width:0}.glossary-explorer__tools{padding:18px 16px}.glossary-group{grid-template-columns:1fr;gap:4px}.glossary-group__heading{position:static;font-size:1.5rem;padding-bottom:4px;border-bottom:1px solid var(--line)}.glossary-explorer__alphabet{gap:1px}.glossary-letter-button{min-width:24px;height:28px}.final-exam-card{flex-direction:column;align-items:stretch}.final-exam-card__cta{width:100%}.learn-quiz-cta{flex-direction:column;align-items:flex-start}.learn-quiz-cta__actions .btn,.learn-quiz-cta__actions{width:100%}.search-overlay{padding:0;align-items:stretch}.search-dialog{width:100%;min-height:100dvh;border-radius:0;border:0;display:flex;flex-direction:column}.search-dialog__body{flex:1;max-height:none}.search-dialog__footer{padding-bottom:max(11px,env(safe-area-inset-bottom))}.search-result__snippet{-webkit-line-clamp:2}}@media(max-width:430px){.lesson-reader__rail{grid-template-columns:1fr}.progress-stat__value{font-size:1.65rem}.quiz-options{gap:8px}.quiz-option__letter{width:27px;height:27px}.search-dialog__group-title{padding-inline:10px}}@media(prefers-reduced-motion:reduce){.lesson-step,.question-card,.result-summary,.quiz-feedback,.search-overlay,.search-dialog{animation:none}}