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0;border:none;flex-direction:column;flex:1;justify-content:center;align-items:center;min-width:0;height:100%;font-family:inherit;font-size:11px;font-weight:500;transition:color .2s;display:flex}.nav-item svg{margin-bottom:4px;transition:transform .2s}.nav-item.active{color:var(--button-color)}.nav-item.active svg{fill:currentColor;transform:scale(1.1)}.settings-unsaved-badge{right:max(16px,50vw - 234px);bottom:calc(70px + 12px + env(safe-area-inset-bottom,0px));z-index:110;border-radius:var(--radius-pill);color:#b45309;-webkit-backdrop-filter:blur(12px);text-align:center;pointer-events:none;background:#fffbebe0;border:1px solid #f59e0b61;max-width:calc(min(100vw,500px) - 32px);padding:10px 14px;font-size:.8rem;font-weight:700;line-height:1.3;animation:.2s ease-out unsavedBadgeIn;position:fixed;box-shadow:0 8px 24px #78350f2e}body.dark-theme .settings-unsaved-badge{color:#fcd34d;background:#45270be6;border-color:#fbbf246b;box-shadow:0 8px 24px #00000059}@keyframes unsavedBadgeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.garden-header-img{object-fit:contain;z-index:1;width:100%;height:180px;margin-bottom:-20px}.calendar-grid{grid-template-columns:repeat(7,1fr);gap:6px;margin-top:15px;display:grid}.cal-day{aspect-ratio:1;background:#ebedf0;border-radius:4px}.cal-day.level-1{background:#9be9a8}.cal-day.level-2{background:#40c463}.cal-day.level-3{background:#30a14e}.cal-day.level-4{background:#216e39}body.dark-theme .cal-day{background:#2d333b}body.dark-theme .cal-day.level-1{background:#0e4429}body.dark-theme .cal-day.level-2{background:#006d32}body.dark-theme .cal-day.level-3{background:#26a641}body.dark-theme .cal-day.level-4{background:#39d353}.tip-box{color:#0b5c9c;background:#e6f3ff;border-radius:12px;align-items:flex-start;gap:12px;margin-top:15px;padding:16px;font-size:14px;display:flex}body.dark-theme .tip-box{color:#6bb0e8;background:#0b5c9c33}h3{margin-bottom:10px;font-weight:600}.loading-spinner{border:3px solid var(--border-color,#e5e7eb);border-top-color:var(--accent-color,#3b82f6);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.exercise-card{transition:opacity .2s,transform .1s}.exercise-card:active:not(.done){transform:scale(.98)}.exercise-card.done{opacity:.6}.exercise-badge{text-transform:uppercase;letter-spacing:.3px;white-space:nowrap;border-radius:8px;align-items:center;gap:4px;padding:3px 8px;font-size:.65rem;font-weight:700;display:inline-flex}.exercise-original-phrase{color:var(--text-secondary);margin-top:6px;font-size:.95rem;font-style:italic;line-height:1.5;text-decoration:line-through}.exercise-question{color:var(--text-primary);font-size:1.05rem;font-weight:600;line-height:1.5}.mc-option{border:2px solid var(--border-color);background:var(--card-bg);width:100%;color:var(--text-primary);text-align:left;cursor:pointer;border-radius:12px;padding:14px 16px;font-size:.95rem;font-weight:500;transition:border-color .2s,background .2s}.mc-option:active:not(:disabled){transform:scale(.98)}.mc-option.selected{border-color:var(--button-color);background:var(--bg-blue)}.mc-option.correct{background:var(--bg-green);color:#065f46;border-color:#10b981}.mc-option.incorrect{background:var(--bg-pink);color:#991b1b;border-color:#ef4444}.fib-input{border:2px solid var(--border-color);background:var(--bg-input);width:100%;color:var(--text-primary);border-radius:12px;outline:none;padding:12px 14px;font-size:.95rem;transition:border-color .2s}.fib-input:focus{border-color:var(--button-color)}.fib-input.correct{background:var(--bg-green);border-color:#10b981}.fib-input.incorrect{background:var(--bg-pink);border-color:#ef4444}.wo-word-bank{flex-wrap:wrap;gap:8px;display:flex}.wo-word{border:1.5px solid var(--border-color);background:var(--card-bg);color:var(--text-primary);cursor:pointer;border-radius:10px;padding:10px 16px;font-size:.9rem;font-weight:500;transition:opacity .2s,transform .1s}.wo-word:active:not(:disabled){transform:scale(.95)}.wo-word.used{opacity:.25;cursor:default}.wo-answer-line{border:2px dashed var(--border-color);border-radius:14px;flex-wrap:wrap;align-items:center;gap:6px;min-height:54px;padding:10px;display:flex}.wo-placed-word{background:var(--button-color);color:var(--button-text-color);cursor:pointer;border:none;border-radius:10px;padding:8px 14px;font-size:.85rem;font-weight:600;transition:transform .1s}.wo-placed-word:active:not(:disabled){transform:scale(.95)}.exercise-result{border-radius:14px;margin-top:16px;padding:16px}.exercise-result.correct{background:var(--bg-green);color:#065f46}.exercise-result.incorrect{background:var(--bg-pink);color:#991b1b}body.dark-theme .exercise-result.correct{color:#6ee7b7}body.dark-theme .exercise-result.incorrect{color:#fca5a5}body.dark-theme .mc-option.correct{color:#6ee7b7}body.dark-theme .mc-option.incorrect{color:#fca5a5}.exercise-explanation{opacity:.9;font-size:.85rem;line-height:1.5}.session-progress{background:var(--border-color);border-radius:2px;height:4px;margin:4px 20px 0}.session-progress-fill{background:var(--button-color);border-radius:2px;height:100%;transition:width .3s}.session-counter{color:var(--hint-color);text-align:center;margin-top:12px;margin-bottom:4px;font-size:13px}.session-result-screen{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:60vh;padding:40px 20px;display:flex}.session-result-emoji{margin-bottom:16px;font-size:56px}.session-result-title{color:var(--text-primary);margin-bottom:8px;font-size:22px;font-weight:700}.session-result-score{color:var(--text-secondary);margin-bottom:32px;font-size:18px}.exercise-stats{flex-direction:column;gap:20px;padding:16px 16px 32px;display:flex}.stats-header{text-align:center;flex-direction:column;align-items:center;gap:6px;padding:12px 0 4px;display:flex}.stats-header-emoji{font-size:48px;line-height:1}.stats-header-title{color:var(--text-primary);margin:0;font-size:1.25rem;font-weight:700}.stats-header-subtitle{color:var(--text-secondary);margin:0;font-size:.875rem}.stats-next-review{color:var(--text-secondary);margin-top:6px;font-size:.8rem}.progress-tabs{background:var(--bg-gray);border-radius:14px;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin:14px 16px 2px;padding:4px;display:grid}.progress-tab{color:var(--text-secondary);cursor:pointer;background:0 0;border:0;border-radius:11px;justify-content:center;align-items:center;gap:7px;padding:10px 8px;font-size:.86rem;font-weight:650;display:flex}.progress-tab.active{background:var(--card-bg);color:var(--text-primary);box-shadow:0 1px 4px #00000014}.review-hero{border-radius:var(--radius-lg);padding:var(--space-5);background:linear-gradient(135deg,#10b98124,#3b82f61a);border:1px solid #10b9813d;flex-direction:column;gap:14px;display:flex}.review-hero__eyebrow{color:#059669;letter-spacing:.06em;text-transform:uppercase;font-size:.72rem;font-weight:800}.review-hero__row{align-items:center;gap:12px;display:flex}.review-hero__icon{background:#10b98129;border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.45rem;display:flex}.review-hero__title{color:var(--text-primary);font-size:1.08rem;font-weight:750}.review-hero__meta{color:var(--text-secondary);margin-top:3px;font-size:.82rem}.session-result-note{background:var(--card-bg);width:100%;max-width:300px;color:var(--text-secondary);text-align:left;border:1px solid var(--border-color);border-radius:12px;align-items:center;gap:10px;margin:0 auto 12px;padding:12px 14px;font-size:.9rem;display:flex}.session-result-note--recovered{color:#047857;background:#10b9811a;border-color:#10b98133}.session-result-actions{flex-direction:column;gap:10px;width:100%;max-width:300px;display:flex}.exercise-retry-actions{flex-direction:column;gap:10px;display:flex}.stats-cards{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.stats-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:14px;flex-direction:column;align-items:center;gap:4px;padding:14px 10px;display:flex}.stats-card-value{color:var(--text-primary);font-size:1.5rem;font-weight:700;line-height:1}.stats-card-label{color:var(--text-secondary);text-align:center;font-size:.7rem;line-height:1.3}.stats-section,.error-type-list{flex-direction:column;gap:10px;display:flex}.stats-section-title{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:.75rem;font-weight:600}.error-type-row{align-items:center;gap:8px;display:flex}.error-type-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;flex-shrink:0;min-width:90px;font-size:.8rem;overflow:hidden}.error-type-bar-wrap{background:var(--border-color);border-radius:3px;flex:1;height:6px;overflow:hidden}.error-type-bar-fill{background:linear-gradient(90deg,#ef4444,#f87171);border-radius:3px;height:100%;transition:width .4s}.error-type-count{color:var(--text-secondary);text-align:right;flex-shrink:0;min-width:24px;font-size:.75rem}.correction-list{flex-direction:column;gap:8px;display:flex}.correction-item{background:var(--card-bg);border:1px solid var(--border-color);border-radius:10px;flex-direction:column;gap:4px;padding:10px 12px;display:flex}.correction-wrong{color:#ef4444;opacity:.85;font-size:.8rem;text-decoration:line-through}.correction-right{color:#10b981;font-size:.85rem;font-weight:500}.pipeline-card{background:var(--card-bg);padding:var(--space-5);border-radius:var(--radius-lg);box-shadow:0 1px 3px #0000000d}.pipeline-head{color:var(--text-primary);justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.pipeline-head__title{align-items:center;gap:10px;font-size:1rem;display:flex}.pipeline-info-btn{border-radius:var(--radius-pill);cursor:pointer;color:#8b5cf6;background:#8b5cf61a;border:1px solid #8b5cf640;padding:4px 12px;font-size:.8rem;font-weight:600;line-height:1.4}.pipeline-stack{border-radius:var(--radius-sm);background:var(--bg-gray);height:16px;margin-bottom:20px;display:flex;overflow:hidden}.pipeline-stack>div{transition:width .5s}.pipeline-stages{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.pipeline-stage{flex-direction:column;align-items:center;font-size:.85rem;display:flex}.pipeline-stage__emoji{margin-bottom:6px;font-size:1.6rem}.pipeline-stage__count{color:var(--text-primary);font-size:1.1rem;font-weight:700}.pipeline-stage__label{color:var(--text-secondary);text-align:center;margin-top:2px;line-height:1.2}.err-bar{margin-bottom:14px}.err-bar__head{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.err-bar__name{color:var(--text-primary);align-items:center;gap:8px;font-size:.95rem;font-weight:500;display:flex}.err-bar__count{color:var(--text-secondary);border-radius:var(--radius-md);background:#9ca3af26;padding:3px 10px;font-size:.9rem;font-weight:600}.err-bar__track{background:#9ca3af33;border-radius:6px;width:100%;height:10px;overflow:hidden}.err-bar__fill{background-image:linear-gradient(90deg,#f87171,#ef4444);border-radius:6px;height:100%;transition:width .5s ease-out}.fix-card{background:var(--card-bg);padding:var(--space-4);border:1px solid #9ca3af33;border-radius:14px;margin-bottom:14px;box-shadow:0 2px 4px #00000005}.fix-card__badge{text-transform:uppercase;color:var(--text-secondary);border-radius:var(--radius-md);letter-spacing:.05em;background:#9ca3af1a;align-self:flex-end;padding:4px 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var(--border-color);background:#fff;border-radius:50%;flex-shrink:0;width:20px;height:20px}.plan-card.selected .plan-card__radio{border:6px solid #3b82f6}.pay-btn{color:#fff;cursor:pointer;border:none;border-radius:14px;justify-content:center;align-items:center;gap:10px;width:100%;padding:16px;font-size:1.05rem;font-weight:600;display:flex}.pay-btn:disabled{opacity:.7;cursor:default}.pay-btn--card{background:linear-gradient(135deg,#3b82f6,#60a5fa);box-shadow:0 6px 15px #3b82f64d}.pay-btn--stars{background:linear-gradient(135deg,#f59e0b,#fbbf24);box-shadow:0 6px 15px #f59e0b4d}.promo-banner{border-radius:var(--radius-lg);color:#fff;background:linear-gradient(135deg,#ec4899,#f472b6);align-items:center;gap:15px;margin-bottom:20px;padding:16px 20px;display:flex;box-shadow:0 4px 15px #ec48994d}.promo-banner h4{margin:0;font-size:1.1rem}.promo-banner p{opacity:.9;margin:5px 0 0;font-size:.9rem}.profile-avatar-lg{border:3px solid 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15px;font-size:.85rem}.info-row{justify-content:space-between;display:flex}.info-row__label{color:var(--text-secondary);font-weight:500}.info-row__value{color:var(--text-primary);font-weight:600}.modal-overlay{z-index:1000;background:#00000080;display:flex;position:fixed;inset:0}.modal-overlay--center{justify-content:center;align-items:center;padding:24px}.modal-overlay--sheet{align-items:flex-end}.modal-close{background:var(--bg-gray);cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.ach-hero-icon{background:#fff3;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.ach-icon{border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:46px;height:46px;font-size:1.5rem;display:flex}.ach-badge{border-radius:var(--radius-sm);flex-shrink:0;padding:2px 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