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solid var(--ds-color-border);border-radius:var(--ds-radius-sm);display:inline-grid;min-height:2.3rem;padding:var(--ds-space-7);white-space:normal;width:3.9rem}.calibration-tile--known{border-color:rgba(var(--ds-rgb-accent),.28)}.calibration-tile--maybe{background:var(--ds-color-warning-wash-muted);border-color:rgba(var(--ds-rgb-warning),.34)}.calibration-tile--unknown{background:var(--ds-color-danger-wash-muted);border-color:rgba(var(--ds-rgb-danger),.28)}.calibration-tile--current{border-color:var(--ds-color-ink-strong);box-shadow:inset 0 0 0 .05rem 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.section-title{margin-bottom:0}.unlock-preview__list{display:grid;gap:var(--ds-space-6);grid-template-columns:1fr 1fr}.unlock-preview__item{background:var(--ds-color-surface);border:var(--ds-border-width) solid var(--ds-color-border);border-radius:var(--ds-radius-sm);min-height:3.15rem;padding:var(--ds-space-7)}.unlock-preview__lemma{color:var(--ds-color-ink-strong);display:block;font-size:var(--ds-text-26);font-weight:var(--ds-weight-heavy);line-height:1.1}.unlock-preview__sense{color:var(--ds-color-text);display:block;font-size:var(--ds-text-20);line-height:1.28;margin:.2rem 0 .3rem;min-height:1.15rem}.calibration-nav{display:grid;gap:var(--ds-space-6);margin-top:var(--ds-space-6)}.anchor-runway{display:grid;gap:var(--ds-space-9);margin-bottom:var(--ds-space-11);padding:var(--ds-space-13)}.anchor-runway__list{display:flex;flex-wrap:wrap;gap:var(--ds-space-5)}.session-gate{align-items:center;display:grid;gap:var(--ds-space-11);grid-template-columns:minmax(0,1fr) 5.5rem;margin-bottom:var(--ds-space-11);padding:var(--ds-space-13)}.session-gate--ready{border-color:rgba(var(--ds-rgb-accent),.32)}.session-gate--thin{border-color:rgba(var(--ds-rgb-warning),.34)}.session-gate__title{color:var(--ds-color-ink-strong);display:block;font-size:var(--ds-text-30);font-weight:var(--ds-weight-label);line-height:1.16}.session-gate__text{color:var(--ds-color-text);display:block;font-size:var(--ds-text-23);line-height:1.42;margin-top:.2rem}.session-gate__actions{display:grid;gap:var(--ds-space-6)}.build-note,.build-panel{margin-bottom:var(--ds-space-11);padding:var(--ds-space-13)}.build-panel{background:linear-gradient(135deg,rgba(var(--ds-rgb-surface),.98),rgba(var(--ds-rgb-utility-mist),.9)),var(--ds-color-surface);border-color:rgba(var(--ds-rgb-utility),.28)}.build-panel--quiet{background:var(--ds-color-accent-wash);border-color:rgba(var(--ds-rgb-accent),.24)}.build-panel--progress{display:grid;gap:var(--ds-space-9)}.build-panel__header{align-items:flex-start;display:flex;gap:var(--ds-space-9);justify-content:space-between}.build-progress__percent{background:var(--ds-color-surface);border:var(--ds-border-width) solid rgba(var(--ds-rgb-accent),.28);border-radius:var(--ds-radius-sm);color:var(--ds-color-accent-ink);display:block;font-size:var(--ds-text-24);font-weight:var(--ds-weight-black);line-height:1;min-width:1.8rem;padding:.2rem .25rem;text-align:center}.build-progress__bar{background:var(--ds-color-meter-track);border:var(--ds-border-width) solid var(--ds-color-border-strong);border-radius:var(--ds-radius-pill);height:.3rem;overflow:hidden;width:100%}.build-progress__fill{background:linear-gradient(90deg,var(--ds-color-accent),var(--ds-color-text-blue));border-radius:inherit;height:100%;transition:width var(--ds-duration-standard) ease}.build-progress__steps{display:grid;gap:var(--ds-space-5);grid-template-columns:1fr}.build-progress__step{background:var(--ds-color-surface);border:var(--ds-border-width) solid var(--ds-color-border);border-radius:var(--ds-radius-sm);display:grid;gap:var(--ds-space-5);grid-template-columns:.85rem minmax(0,1fr);min-height:2.8rem;padding:var(--ds-space-7)}.build-progress__step--active{background:var(--ds-color-accent-wash-active);border-color:rgba(var(--ds-rgb-accent),.38)}.build-progress__step--done{background:var(--ds-color-utility-wash);border-color:rgba(var(--ds-rgb-utility),.34)}.build-progress__marker{align-items:center;background:var(--ds-color-text-blue);border-radius:var(--ds-radius-pill);color:var(--ds-color-surface);display:flex;font-size:var(--ds-text-18);font-weight:var(--ds-weight-black);height:.85rem;justify-content:center;line-height:1;width:.85rem}.build-progress__step--active .build-progress__marker,.build-progress__step--done .build-progress__marker{background:var(--ds-color-accent)}.build-progress__copy{min-width:0}.build-progress__title{color:var(--ds-color-ink-strong);display:block;font-size:var(--ds-text-21);font-weight:var(--ds-weight-heavy);line-height:1.18}.build-progress__hint,.build-progress__text{color:var(--ds-color-text-muted);display:block;font-size:var(--ds-text-18);line-height:1.32}.build-progress__text{margin-top:.15rem}.build-progress__hint{color:var(--ds-color-text)}.build-steps{display:grid;gap:var(--ds-space-5);grid-template-columns:1fr 1fr}.build-step{background:var(--ds-color-surface-muted);border-left:var(--ds-border-width-accent) solid var(--ds-color-text-blue);border-radius:var(--ds-radius-sm);color:var(--ds-color-ink-soft);display:block;font-size:var(--ds-text-21);font-weight:var(--ds-weight-strong);line-height:1.28;min-height:1.45rem;padding:.35rem .35rem .35rem .45rem}.build-note{background:var(--ds-color-warning-wash-quiet);border-color:rgba(var(--ds-rgb-warning),.26)}.boundary-aside{padding:var(--ds-space-12)}.boundary-group{margin-top:var(--ds-space-9)}.boundary-group__header{align-items:baseline;display:flex;gap:var(--ds-space-6);justify-content:space-between;margin-bottom:var(--ds-space-5)}.boundary-group__title{color:var(--ds-color-ink-strong);font-size:var(--ds-text-22);font-weight:var(--ds-weight-title)}.boundary-group__count{color:var(--ds-color-text-muted);font-size:var(--ds-text-20);font-weight:var(--ds-weight-bold)}.boundary-list{display:grid;gap:var(--ds-space-4);max-height:10.75rem;overflow:auto}.boundary-list__item{align-items:center;background:var(--ds-color-surface-muted);border:var(--ds-border-width) solid transparent;border-radius:var(--ds-radius-sm);display:grid;gap:var(--ds-space-6);grid-template-columns:minmax(0,1fr) auto;min-height:1.6rem;padding:.25rem .3rem}.boundary-list__item--current{background:var(--ds-color-accent-wash-soft);border-color:rgba(var(--ds-rgb-accent),.42)}.boundary-list__item--hover{background:var(--ds-color-surface-hover);border-color:var(--ds-color-border-hover)}.boundary-list__lemma{color:var(--ds-color-ink-strong);display:block;font-size:var(--ds-text-22);font-weight:var(--ds-weight-label);line-height:1.12}.boundary-list__meaning{color:var(--ds-color-text-muted);display:block;font-size:var(--ds-text-18);line-height:1.25;margin-top:.1rem}.boundary-list__empty{color:var(--ds-color-text-muted);display:block;font-size:var(--ds-text-20);line-height:1.3;padding:.3rem}.session-meter{display:grid;gap:var(--ds-space-5);margin-bottom:var(--ds-space-7);padding:.45rem 0}.session-meter--compact{padding-top:0}.session-meter--learning{margin-bottom:var(--ds-space-5);padding:0 0 .35rem}.session-meter__bar{background:var(--ds-color-meter-bg);border:var(--ds-border-width) solid var(--ds-color-border);border-radius:var(--ds-radius-pill);height:.3rem;overflow:hidden;width:100%}.session-meter__fill{border-radius:inherit;height:100%}.completion-card,.detail-card,.feedback-panel,.feedback-target,.learning-card,.learning-trail,.session-empty,.unlock-card{animation:card-enter var(--ds-duration-standard) var(--ds-ease-standard) both;margin-bottom:var(--ds-space-11);padding:var(--ds-space-15)}.learning-card__topline{align-items:center;display:flex;gap:var(--ds-space-6);justify-content:space-between;margin-bottom:.4rem}.practice-stage{display:grid;gap:var(--ds-space-9);min-height:9rem}.practice-stage__word{align-content:start;display:grid;gap:var(--ds-space-7);min-height:3.85rem}.audio-row{display:flex;flex-wrap:wrap;gap:var(--ds-space-5)}.audio-button{align-items:center;background:var(--ds-color-accent-wash);border:var(--ds-border-width) solid 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var(--ds-color-border);border-radius:var(--ds-radius-sm);color:var(--ds-color-ink-strong);cursor:pointer;font-size:var(--ds-text-23);font-weight:var(--ds-weight-emphasis);line-height:1.25;min-height:1.45rem;padding:.35rem .4rem}.review-option--hover{background:var(--ds-color-accent-wash);border-color:rgba(var(--ds-rgb-accent),.34)}.review-option--correct{background:var(--ds-color-accent-wash-soft);border-color:rgba(var(--ds-rgb-accent),.44);color:var(--ds-color-accent-ink)}.review-option--wrong{background:var(--ds-color-danger-wash-soft);border-color:rgba(var(--ds-rgb-danger),.38);color:var(--ds-color-danger-ink-soft)}.practice-feedback-slot{margin-top:var(--ds-space-8);min-height:1.8rem}.choice-feedback--inline{margin-top:0}.practice-feedback-placeholder{color:var(--ds-color-text-faint);display:block;font-size:var(--ds-text-22);line-height:1.35;padding:.35rem 0}.support-dock{display:grid;gap:var(--ds-space-6);margin-top:var(--ds-space-6);min-height:6.1rem}.support-tabs{display:grid;gap:var(--ds-space-4);grid-template-columns:repeat(3,minmax(0,1fr))}.support-tab{align-items:center;background:var(--ds-color-surface);border:var(--ds-border-width) solid var(--ds-color-border);border-radius:var(--ds-radius-sm);color:var(--ds-color-text);cursor:pointer;display:flex;font-size:var(--ds-text-21);font-weight:var(--ds-weight-label);justify-content:center;line-height:1.12;min-height:1.25rem;padding:.2rem .25rem;text-align:center}.support-tab--active{background:var(--ds-color-accent-wash-soft);border-color:rgba(var(--ds-rgb-accent),.36);color:var(--ds-color-accent-ink)}.support-panel{background:var(--ds-color-accent-wash);border:var(--ds-border-width) solid 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.section-title{margin-bottom:.05rem;width:100%}.unlock-result{margin-bottom:var(--ds-space-11);padding:var(--ds-space-13)}.unlock-result--passed{background:var(--ds-color-accent-wash);border-color:rgba(var(--ds-rgb-accent),.32)}.unlock-result--failed{background:var(--ds-color-warning-wash-quiet);border-color:rgba(var(--ds-rgb-warning),.34)}.detail-card,.detail-note{margin-bottom:var(--ds-space-11);padding:var(--ds-space-15)}.feedback-target{border-color:rgba(var(--ds-rgb-danger),.28)}.feedback-panel{margin-bottom:var(--ds-space-11);padding:var(--ds-space-13)}.feedback-grid{display:grid;gap:var(--ds-space-6);grid-template-columns:1fr}.share-card--artifact{background:linear-gradient(180deg,rgba(var(--ds-rgb-surface),.96),rgba(var(--ds-rgb-accent-wash-bright),.88)),var(--ds-color-surface)}.share-card__kicker{color:var(--ds-color-accent);display:block;font-size:var(--ds-text-22);font-weight:var(--ds-weight-heavy);margin-bottom:var(--ds-space-6)}.share-path{background:var(--ds-color-surface);border:var(--ds-border-width) 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.35rem}.trail__step{animation:trail-in var(--ds-duration-slow) var(--ds-ease-standard) both;animation-delay:calc(var(--i)*var(--ds-duration-stagger))}.trail__step--button{border-color:rgba(var(--ds-rgb-accent),.26);cursor:pointer;text-decoration:underline;text-decoration-color:rgba(var(--ds-rgb-accent),.28);text-underline-offset:.125rem}.trail__step--hover{background:var(--ds-color-accent-wash-muted);border-color:rgba(var(--ds-rgb-accent),.44)}.trail__target{background:var(--ds-color-accent-wash-soft);border-color:rgba(var(--ds-rgb-accent),.35);color:var(--ds-color-accent-ink)}.trail__arrow,.trail__plus{color:var(--ds-color-text-muted);font-size:var(--ds-text-21);font-weight:var(--ds-weight-bold)}.nav-list{display:grid;gap:var(--ds-space-6);grid-template-columns:1fr 1fr}.anchor-examples{display:grid;gap:var(--ds-space-4)}.anchor-examples__list{display:flex;flex-wrap:wrap;gap:var(--ds-space-4)}.anchor-chip{background:var(--ds-color-surface-muted);border:var(--ds-border-width) solid rgba(var(--ds-rgb-accent),.24);border-radius:var(--ds-radius-sm);color:var(--ds-color-ink-strong);cursor:pointer;font-size:var(--ds-text-20);font-weight:var(--ds-weight-label);line-height:1.1;min-height:.95rem;padding:.175rem .3rem}.anchor-chip--hover{background:var(--ds-color-accent-wash-muted);border-color:rgba(var(--ds-rgb-accent),.44)}.input,.textarea{background:var(--ds-color-surface);border:var(--ds-border-width) solid var(--ds-color-border);border-radius:var(--ds-radius-sm);color:var(--ds-color-ink-strong);font-size:var(--ds-text-26);min-height:1.9rem;padding:var(--ds-space-9);width:100%}.textarea{min-height:4rem}.review-row{margin-bottom:var(--ds-space-7);padding:var(--ds-space-10)}.review-row__word{color:var(--ds-color-ink-strong);display:block;font-size:var(--ds-text-30);font-weight:var(--ds-weight-label)}.share-card{background:linear-gradient(180deg,var(--ds-color-surface) 0,var(--ds-color-surface-lifted) 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var(--ds-color-border);border-radius:var(--ds-radius-circle);cursor:pointer;display:flex;height:1.1rem;justify-content:center;width:1.1rem}.settings-button__icon{display:block;font-size:var(--ds-text-22);line-height:1}.settings-sheet{align-items:flex-end;display:flex;inset:0;justify-content:center;position:fixed;z-index:40}.settings-sheet__scrim{background:rgba(var(--ds-rgb-ink-strong),.32);inset:0;position:absolute}.settings-sheet__card{animation:sheet-enter var(--ds-duration-fast) var(--ds-ease-standard) both;background:var(--ds-color-surface);border-radius:var(--ds-radius-sm) var(--ds-radius-sm) 0 0;box-shadow:var(--ds-shadow-sheet);max-width:var(--ds-size-sheet-max);padding:var(--ds-space-13);position:relative;width:100%;z-index:1}.settings-sheet__header{align-items:center;display:flex;gap:var(--ds-space-8);justify-content:space-between;margin-bottom:var(--ds-space-9)}.settings-sheet__title{color:var(--ds-color-ink-strong);display:block;font-size:var(--ds-text-28);font-weight:var(--ds-weight-title)}.settings-sheet__close{align-items:center;background:var(--ds-color-surface-muted);border-radius:var(--ds-radius-circle);color:var(--ds-color-text-muted);cursor:pointer;display:flex;height:.9rem;justify-content:center;width:.9rem}.language-choice--sheet{display:flex;width:100%}.language-choice--sheet .language-choice__option{flex:1 1 0;min-height:1.4rem}.build-note--home{margin-top:var(--ds-space-10)}@keyframes sheet-enter{from{opacity:0;transform:translateY(.75rem)}to{opacity:1;transform:translateY(0)}}@media (min-width:900px){.boundary-stage__lemma,.unlock-stage__lemma,.word-stage__lemma{font-size:var(--ds-display-118)}.resume-bridge__word{font-size:var(--ds-display-86)}.home-hero{margin-bottom:var(--ds-space-10);padding:var(--ds-space-6) 0 var(--ds-space-12)}.home-hero__slogan{font-size:var(--ds-display-68)}}@media (max-width:720px){.page{padding:.55rem .5rem .95rem}.page__header{margin-bottom:var(--ds-space-7)}.page__title{font-size:var(--ds-text-38)}.page__intro{font-size:var(--ds-text-21)}.boundary-step__label{font-size:var(--ds-text-18)}.word-stage{min-height:10.25rem;padding:.7rem 0 .55rem}.boundary-stage__lemma,.unlock-stage__lemma,.word-stage__lemma{font-size:var(--ds-display-86)}.boundary-stage__hint,.word-stage__hint{font-size:var(--ds-text-25)}.word-stage__example{font-size:var(--ds-text-21)}.trail--stage{padding-top:.4rem}.trail--stage .trail__label{font-size:var(--ds-text-17)}.trail--stage .trail__step,.trail--stage .trail__target{font-size:var(--ds-text-27)}.fixed-card-actions--decision .action{font-size:var(--ds-text-24);min-height:1.85rem}.boundary-result__lead,.post-answer__text{font-size:var(--ds-text-24)}.resume-bridge__word{font-size:var(--ds-display-68)}.resume-bridge__hint{font-size:var(--ds-text-22)}.secondary-actions{grid-template-columns:1fr}.home-hero{gap:var(--ds-space-8);margin-bottom:var(--ds-space-6);padding:var(--ds-space-2) 0 var(--ds-space-8)}.home-hero__actions{max-width:none}.home-hero__slogan{font-size:var(--ds-text-42)}.home-hero__emotion{font-size:var(--ds-text-24)}.home-hero__cta{font-size:var(--ds-text-28);min-height:2rem}.selling-cards__card{padding:var(--ds-space-10)}.selling-cards__title{font-size:var(--ds-text-28)}.selling-cards__text{font-size:var(--ds-text-26)}}