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0;font-size:14px;line-height:20px;color:var(--text-muted)}.avatar{width:44px;height:44px;border-radius:var(--radius-full);background:var(--accent-soft);color:var(--accent-base);display:grid;place-items:center;font-weight:700;font-size:17px;flex-shrink:0}.avatar--sm{width:40px;height:40px;font-size:16px}.streak-card{background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:16px;display:flex;flex-direction:column;gap:14px}.streak-card--gold{background:var(--gold-soft);box-shadow:none}.streak-card--lost{background:var(--danger-soft)}.streak-card__head{display:flex;align-items:center;gap:8px}.streak-card__title{margin:0;font-size:16px;font-weight:700;color:var(--text-strong)}.streak-card--gold .streak-card__title{color:var(--gold-text);font-size:18px}.streak-card__spacer{flex:1}.freeze-pill{background:var(--ice-soft);color:var(--ice-text);border-radius:var(--radius-full);padding:6px 12px;font-size:13px;font-weight:700}.week-strip{display:flex;gap:8px;width:100%}.week-day{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;min-width:0}.week-day__dot{width:36px;height:36px;border-radius:var(--radius-full);display:grid;place-items:center;font-size:15px;font-weight:700}.week-day__dot--done{background:var(--accent-base);color:var(--text-on-accent)}.week-day__dot--frozen{background:var(--ice-soft);color:var(--ice-text);border:1.5px solid var(--ice-base)}.week-day__dot--missed{background:var(--surface-sunken);color:var(--text-muted)}.week-day__dot--today{background:var(--surface-raised);color:var(--accent-base);border:2px dashed var(--accent-base)}.week-day__dot--future{background:var(--surface-sunken);opacity:.5}.week-day__label{font-size:11px;line-height:15px;color:var(--text-muted)}.week-day__label--today{color:var(--accent-base);font-weight:700}.streak-card__foot{display:flex;align-items:center;gap:6px;font-size:12px;line-height:17px}.streak-card__foot span{color:var(--text-muted);flex:1}.streak-card__foot button{border:0;background:transparent;color:var(--accent-base);font-weight:600;font-size:12px;padding:0;cursor:pointer}.streak-meta{display:flex;align-items:center;gap:8px;color:var(--gold-text);font-size:12px}.hero-task{background:var(--accent-base);color:var(--text-on-accent);border-radius:28px;box-shadow:var(--shadow-hero);padding:18px;display:flex;flex-direction:column;gap:14px}.hero-task__top{display:flex;justify-content:space-between;gap:12px;align-items:center}.hero-task__eyebrow{margin:0;font-size:11px;letter-spacing:.8px;text-transform:uppercase;color:#ffffffb3;font-weight:700}.hero-task__title{margin:5px 0 0;font-size:18px;line-height:24px;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}.hero-task__cta{background:var(--surface-raised);color:var(--accent-base);border:0;border-radius:var(--radius-md);padding:15px 18px;font-size:16px;font-weight:600;cursor:pointer;width:100%}.section-label{margin:0;font-size:13px;font-weight:500;color:var(--text-muted)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.section-link{border:0;background:transparent;padding:0;font-size:13px;font-weight:600;color:var(--accent-base);cursor:pointer}.mode-cards{display:flex;gap:10px}.mode-card{flex:1;border-radius:20px;padding:14px;display:flex;flex-direction:column;gap:8px;border:1px solid var(--border-subtle);background:var(--surface-raised);cursor:pointer;text-align:left}.mode-card--active{border:2px solid var(--accent-base)}.mode-card--quick{background:var(--gold-soft)}.mode-card__icon{width:32px;height:32px;border-radius:var(--radius-sm);display:grid;place-items:center;font-weight:700;background:var(--accent-soft);color:var(--accent-base)}.mode-card--quick .mode-card__icon{background:var(--gold-base);color:var(--text-on-accent)}.mode-card__title{margin:0;font-size:15px;font-weight:600;color:var(--text-strong)}.mode-card__sub{margin:0;font-size:12px;color:var(--text-muted)}.mode-card--quick .mode-card__sub{color:var(--gold-text);font-weight:600}.tab-bar{flex:0 0 auto;background:var(--surface-raised);border-top:1px solid var(--border-subtle);display:flex;padding:10px 20px 22px;padding-bottom:max(22px,env(safe-area-inset-bottom))}.tab-bar__item{flex:1;border:0;background:transparent;display:flex;flex-direction:column;align-items:center;gap:5px;padding:6px 0;cursor:pointer;color:var(--text-muted)}.tab-bar__icon{width:32px;height:26px;border-radius:var(--radius-full);display:grid;place-items:center;font-size:14px;font-weight:700}.tab-bar__item--active{color:var(--accent-base)}.tab-bar__item--active .tab-bar__icon{background:var(--accent-soft)}.tab-bar__label{font-size:11px;font-weight:500}.tab-bar__item--active .tab-bar__label{font-weight:600}.progress-ring{position:relative;width:60px;height:60px;flex-shrink:0}.progress-ring svg{transform:rotate(-90deg)}.progress-ring__label{position:absolute;inset:0;display:grid;place-items:center;font-size:14px;font-weight:700;color:inherit}.progress-ring--sm{width:56px;height:56px}.progress-ring--sm .progress-ring__label{font-size:18px}.screen-title{margin:0;font-size:26px;line-height:36px;font-weight:700}.bento-row{display:flex;gap:12px}.bento-card{flex:1;background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:14px;display:flex;gap:12px;align-items:center}.bento-card--stack{flex-direction:column;align-items:flex-start;gap:4px}.bento-card__value{margin:0;font-size:20px;font-weight:700}.bento-card__label{margin:0;font-size:12px;color:var(--text-muted)}.week-chart{background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:16px 16px 14px;display:flex;flex-direction:column;gap:12px}.week-chart__head{display:flex;justify-content:space-between;align-items:center;gap:8px}.week-chart__head h3{margin:0;font-size:15px}.week-chart__head span{font-size:12px;font-weight:600;color:var(--accent-base)}.week-chart__bars{display:flex;gap:8px;height:88px;align-items:end}.week-chart__col{flex:1;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:end;gap:6px}.week-chart__bar-wrap{width:20px;height:64px;display:flex;flex-direction:column;justify-content:end}.week-chart__bar{width:20px;border-radius:var(--radius-full);overflow:hidden;display:flex;flex-direction:column;justify-content:end;min-height:5px;background:var(--surface-sunken)}.week-chart__good{background:var(--accent-base);width:100%}.week-chart__soft{background:var(--accent-soft);width:100%}.week-chart__day{font-size:11px;color:var(--text-muted)}.week-chart__day--today{color:var(--accent-base);font-weight:700}.referral-banner{background:var(--accent-soft);border-radius:var(--radius-lg);padding:14px 16px;display:flex;gap:12px;align-items:center}.referral-banner__text{flex:1;min-width:0}.referral-banner__text strong{display:block;font-size:14px;line-height:18px;margin-bottom:2px}.referral-banner__text span{font-size:12px;line-height:16px;color:var(--text-muted)}.referral-banner button{border:0;background:var(--accent-base);color:var(--text-on-accent);border-radius:var(--radius-full);padding:10px 14px;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap}.freeze-banner{background:var(--ice-soft);color:var(--ice-text);border-radius:var(--radius-lg);padding:14px 16px;font-size:14px;line-height:20px}.empty-today{background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:24px 18px;text-align:center;display:flex;flex-direction:column;gap:10px;align-items:center}.empty-today h2{margin:0;font-size:18px}.empty-today p{margin:0;color:var(--text-muted);font-size:14px}.btn-primary,.btn-secondary{border:0;border-radius:var(--radius-md);padding:14px 18px;font-size:15px;font-weight:600;cursor:pointer}.btn-primary{background:var(--accent-base);color:var(--text-on-accent)}.btn-secondary{background:var(--surface-sunken);color:var(--text-strong)}.btn-primary:disabled,.btn-secondary:disabled{opacity:.6;cursor:default}.sheet-backdrop{position:fixed;inset:0;background:#12141c73;display:flex;align-items:flex-end;z-index:40;padding:0}.sheet{width:100%;background:var(--surface-raised);border-radius:28px 28px 0 0;padding:12px 20px 28px;max-height:85dvh;overflow:auto}.sheet__handle{width:40px;height:4px;border-radius:var(--radius-full);background:var(--border-strong);margin:0 auto 16px}.sheet h3{margin:0 0 8px;font-size:20px}.sheet p{margin:0 0 12px;color:var(--text-muted);font-size:14px;line-height:20px}.sheet ul{margin:0 0 16px;padding-left:18px;color:var(--text-strong);font-size:14px;line-height:22px}.task-screen{display:flex;flex-direction:column;gap:14px;padding-bottom:24px}.task-progress{font-size:13px;color:var(--text-muted);font-weight:600;display:flex;flex-direction:column;gap:8px}.quiz-progress{display:flex;gap:4px}.quiz-progress__seg{flex:1;height:4px;border-radius:var(--radius-full);background:var(--surface-sunken);transition:background-color .14s ease}.quiz-progress__seg--current{background:var(--accent-base)}.quiz-progress__seg--ok{background:var(--success-base)}.quiz-progress__seg--bad{background:var(--danger-base)}.quiz-progress__seg--done{background:var(--border-strong)}.task-card{background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:18px;display:flex;flex-direction:column;gap:14px}.task-card h2{margin:0;font-size:18px;line-height:26px}.option-btn{width:100%;text-align:left;border:1px solid var(--border-subtle);background:var(--surface-base);border-radius:var(--radius-md);padding:14px;display:flex;gap:12px;align-items:flex-start;cursor:pointer;color:var(--text-strong);font-size:15px;transition:background-color .14s ease,border-color .14s ease}.option-btn:disabled{opacity:.6}.option-btn__letter{width:28px;height:28px;border-radius:var(--radius-full);background:var(--accent-soft);color:var(--accent-base);display:grid;place-items:center;font-weight:700;flex-shrink:0}.option-btn--pending{border-color:var(--accent-base);background:var(--accent-soft);opacity:1}.option-btn--correct{border-color:var(--success-base);background:var(--success-soft)}.option-btn--wrong{border-color:var(--danger-base);background:var(--danger-soft)}.feedback{border-radius:var(--radius-md);padding:12px 14px;font-size:14px;line-height:20px;background:var(--surface-sunken);border-left:3px solid var(--border-strong)}.feedback strong{font-size:15px}.feedback--ok{border-left-color:var(--success-base)}.feedback--ok strong{color:var(--success-base)}.feedback--bad{border-left-color:var(--danger-base)}.feedback--bad strong{color:var(--danger-base)}.feedback__body{margin-top:6px;color:var(--text-strong)}.feedback__takeaway{margin-top:10px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--gold-soft);color:var(--text-strong)}.feedback__takeaway-label{display:block;margin-bottom:2px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;color:var(--gold-text)}.quick-answer{background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:18px}.quick-answer__label{font-size:12px;color:var(--text-muted);margin-bottom:8px;font-weight:600}.quick-answer__text{font-size:16px;line-height:24px}.quick-steps-toggle{border:0;background:transparent;color:var(--accent-base);font-weight:600;padding:0;cursor:pointer;text-align:left}.quick-steps-list{display:flex;flex-direction:column;gap:10px;margin-top:10px}.quick-step-item{display:flex;gap:10px;align-items:flex-start}.quick-step-num{width:24px;height:24px;border-radius:var(--radius-full);background:var(--accent-soft);color:var(--accent-base);display:grid;place-items:center;font-size:12px;font-weight:700;flex-shrink:0}.completion-banner{background:var(--gold-soft);color:var(--gold-text);border-radius:var(--radius-lg);padding:16px;display:flex;flex-direction:column;gap:8px}.completion-banner h3{margin:0;font-size:18px;color:var(--gold-text)}.completion-banner p{margin:0;font-size:14px}.action-row{display:flex;flex-direction:column;gap:10px}.share-message{margin:0;font-size:13px;color:var(--text-muted)}.whats-new{position:fixed;inset:0;z-index:50;background:#12141c8c;display:flex;align-items:flex-end}.whats-new__panel{width:100%;background:var(--surface-raised);border-radius:28px 28px 0 0;padding:20px 20px 28px}.whats-new__cards{display:flex;flex-direction:column;gap:12px;margin:16px 0}.whats-new__card{background:var(--surface-sunken);border-radius:var(--radius-md);padding:14px}.whats-new__card strong{display:block;margin-bottom:4px;font-size:15px}.whats-new__card span{font-size:13px;color:var(--text-muted);line-height:18px}.segmented{display:flex;gap:4px;padding:4px;background:var(--surface-sunken);border-radius:var(--radius-full)}.segmented__item{flex:1;border:0;background:transparent;border-radius:var(--radius-full);padding:9px 12px;font-size:13px;font-weight:600;color:var(--text-muted);cursor:pointer;transition:background-color .14s ease,color .14s ease}.segmented__item--active{background:var(--surface-raised);color:var(--text-strong);box-shadow:var(--shadow-card)}.chips-row{display:flex;gap:8px;overflow-x:auto;padding-bottom:2px}.chip{border:0;background:var(--surface-sunken);color:var(--text-muted);border-radius:var(--radius-full);padding:8px 14px;font-size:13px;font-weight:600;white-space:nowrap;cursor:pointer;flex-shrink:0;transition:background-color .14s ease,color .14s ease}.chip--active{background:var(--accent-soft);color:var(--accent-base)}.top-participants{margin:0;font-size:13px;color:var(--text-muted);font-weight:600}.top-me{background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:16px;display:flex;flex-direction:column;gap:6px}.top-me__head{display:flex;align-items:center;justify-content:space-between;gap:12px}.top-me__rank{margin:0;font-size:20px;font-weight:700}.top-me__sub{margin:2px 0 0;font-size:14px;color:var(--text-muted)}.top-me__hint{margin:0;font-size:13px;color:var(--text-muted)}.top-me__prize{margin:0;font-size:13px;font-weight:600;color:var(--gold-text)}.top-list{background:var(--surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:8px;display:flex;flex-direction:column}.top-list--pinned{margin-top:-4px}.top-row{display:flex;align-items:center;gap:12px;padding:8px;border-radius:var(--radius-md)}.top-row--me{outline:1px solid var(--accent-base)}.top-row__rank{width:36px;height:36px;border-radius:var(--radius-full);background:var(--accent-soft);color:var(--accent-base);display:grid;place-items:center;font-size:13px;font-weight:700;flex-shrink:0}.top-row__rank--medal{background:var(--gold-soft);color:var(--gold-text)}.top-row__name{flex:1;min-width:0;font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.top-row__prize{font-size:12px;font-weight:700;color:var(--gold-text);background:var(--gold-soft);border-radius:var(--radius-full);padding:4px 8px;flex-shrink:0}.top-row__points{font-size:15px;font-weight:700;min-width:32px;text-align:right;flex-shrink:0}.katex-display{overflow-x:auto}