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var(--surface-2));--ml2:color-mix(in srgb, var(--learned) 48%, var(--surface-2));--ml3:color-mix(in srgb, var(--learned) 70%, var(--surface-2));--ml4:var(--learned);--ml5:var(--mastered)}.mastery-badge{align-items:center;gap:10px;min-width:0;margin:8px 0;display:flex}.mb-ring{flex-shrink:0}.mb-track{fill:none;stroke:var(--surface-2);stroke-width:4px}.mb-fill{fill:none;stroke:var(--learned);stroke-width:4px;stroke-linecap:round;transition:stroke-dasharray .4s ease-out}.mastery-badge.is-mastered .mb-fill{stroke:var(--mastered)}.mb-text{flex-wrap:wrap;align-items:center;gap:2px 10px;min-width:0;display:flex}.mb-text 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0;padding:0;list-style:none;display:flex}@media (prefers-reduced-motion:reduce){.mb-fill{transition:none}}.carousel{min-width:0;margin-bottom:16px}.car-track{scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain;scroll-behavior:smooth;border-radius:var(--radius);display:flex;overflow-x:auto}.car-track::-webkit-scrollbar{display:none}.car-slide{box-sizing:border-box;scroll-snap-align:start;scroll-snap-stop:always;flex:0 0 100%;min-width:0}.car-slide>section{box-sizing:border-box;height:100%}.focus-slide-card{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--learned);border-radius:var(--radius);flex-direction:column;gap:2px;min-width:0;padding:14px 16px;display:flex;position:relative}.focus-slide-h{margin:0;font-size:1rem}.focus-slide-card .note{margin:4px 0}.focus-slide-card .lb-focus-list{margin:6px 0 0;padding:0;list-style:none}.focus-slide-card .lb-focus-list li{border-top:1px solid var(--border);flex-direction:column;gap:6px;min-width:0;padding:8px 0;display:flex}.focus-slide-card .lb-focus-list li:first-child{border-top:none;padding-top:0}.focus-slide-card .lb-focus-name{overflow-wrap:anywhere}.focus-slide-card .lb-practise,.focus-slide-card .carousel-continue{width:100%;min-height:44px}.continue-where{overflow-wrap:anywhere;margin:6px 0 0}.continue-title{overflow-wrap:anywhere;margin-top:0}.continue-slide .carousel-continue{margin-top:8px}.continue-slide .carousel-restart{min-height:44px;margin-top:6px}.continue-hint{margin:0}.continue-slide .guided-suggest{margin:6px 0 0}.continue-slide .guided-suggest button{align-items:center;min-height:44px;display:inline-flex}.guided-sr{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.practice-slide .practice-list{margin:6px 0 0;padding:0;list-style:none}.practice-slide .practice-list li{border-top:1px solid var(--border);align-items:center;gap:8px;min-width:0;padding:6px 0;display:flex}.practice-slide .practice-list li:first-child{border-top:none}.practice-text{overflow-wrap:anywhere;flex-direction:column;flex:auto;min-width:0;font-size:.92rem;display:flex}.practice-text small{color:var(--muted);font-size:.8rem}.practice-pct{color:var(--muted);font-variant-numeric:tabular-nums;flex:none;font-size:.85rem}.practice-go{flex:none;min-width:84px;min-height:44px;padding:4px 10px}.practice-all{min-height:44px;color:var(--learned);font:inherit;background:0 0;border:none;align-self:flex-start;margin-top:4px;padding:0 2px;text-decoration:underline}.car-nav{justify-content:center;align-items:center;gap:4px;margin-top:2px;display:flex}.car-arrow{width:44px;height:44px;color:var(--muted);background:0 0;border:none;padding:0;font-size:1.6rem;line-height:1}.car-dots{align-items:center;display:flex}.car-dot{background:0 0;border:none;justify-content:center;align-items:center;width:44px;height:44px;padding:0;display:flex}.car-dot 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2px;text-decoration:underline}.xp-card{min-height:96px;margin-bottom:16px;padding:12px 16px}.xp-loading{min-height:96px}.xp-row{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:2px 12px;display:flex}.xp-level{overflow-wrap:anywhere;font-size:1rem}.xp-detail{color:var(--muted);overflow-wrap:anywhere;font-size:.8rem;line-height:1.3}.xp-track{margin-top:6px}.xp-card{position:relative}.xp-track .goal-step-bar{background:var(--surface-2);height:10px;box-shadow:inset 0 0 0 1px var(--border);border-radius:5px;display:block}.xp-track .goal-step-bar span{background:var(--learned)}.xp-box{align-items:center;gap:14px;min-width:0;display:flex}.xp-ring{flex:0 0 72px;width:72px;height:72px;position:relative}.xp-ring svg{width:72px;height:72px;display:block}.xp-ring-track{fill:none;stroke:var(--surface-2);stroke-width:7px}.xp-ring-fill{fill:none;stroke:var(--learned);stroke-width:7px;stroke-linecap:round;transition:stroke-dashoffset .9s 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.practice-options{margin-top:0}.review-panel .practice-options button{min-height:44px}.review-panel .note{margin-bottom:0}.help{min-width:0}.help h2{margin-top:4px}.help p{font-size:1.05rem;line-height:1.45}.help-back{min-height:44px;margin-bottom:8px}.help-guide{min-width:0;margin-top:16px}.help-guide h3{overflow-wrap:anywhere;margin:0 0 4px;font-size:1.25rem}.help-guide h4{margin:14px 0 6px;font-size:1.05rem}.help-meta{color:var(--muted);margin:0 0 6px;font-size:.95rem!important}.help-video{aspect-ratio:9/16;background:#000;border-radius:12px;width:100%;max-width:360px;max-height:70vh;margin:12px auto;display:block}.help-steps{counter-reset:help-step;margin:0;padding-left:0;list-style:none}.help-steps li{counter-increment:help-step;border-top:1px solid var(--border);flex-direction:column;gap:2px;min-width:0;padding:8px 0 8px 44px;display:flex;position:relative}.help-steps 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.reading{color:var(--muted);font-size:.7rem}.st-tile.st-right{border-color:var(--good)}.st-tile.st-wrong{border-color:var(--again)}.st-tile:disabled{opacity:1}.st-tile{position:relative}.st-tile-mark{margin-top:2px;font-size:.8rem;font-weight:700;line-height:1}.st-tile.st-t-right{border-color:var(--good);background:color-mix(in srgb, var(--good) 22%, var(--surface));box-shadow:0 2px 0 var(--good)}.st-tile.st-t-misplaced{border-color:var(--started-edge);background:color-mix(in srgb, var(--started) 40%, var(--surface));box-shadow:0 2px 0 var(--started-edge)}.st-tile.st-t-absent{border-color:var(--again);background:color-mix(in srgb, var(--again) 22%, var(--surface));box-shadow:0 2px 0 var(--again)}.st-tile.st-t-right .st-tile-mark{color:var(--good)}.st-tile.st-t-misplaced .st-tile-mark{color:var(--text)}.st-tile.st-t-absent .st-tile-mark{color:var(--again)}.st-tile.st-t-right .reading,.st-tile.st-t-misplaced .reading,.st-tile.st-t-absent .reading,.st-tile.st-t-misplaced .reading span{color:var(--text)}.st-legend{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:4px 14px;font-size:.8rem;display:flex}.st-legend b{text-align:center;border:2px solid;border-radius:6px;min-width:1.3em;margin-right:4px;font-weight:700;display:inline-block}.st-legend .st-t-right{border-color:var(--good);color:var(--good);background:color-mix(in srgb, var(--good) 22%, var(--surface))}.st-legend .st-t-misplaced{border-color:var(--started-edge);color:var(--text);background:color-mix(in srgb, var(--started) 40%, var(--surface))}.st-legend .st-t-absent{border-color:var(--again);color:var(--again);background:color-mix(in srgb, var(--again) 22%, var(--surface))}.st-missing{text-align:center;color:var(--muted);margin:0;font-weight:600}.st-stimulus .st-picked .st-hanzi{font-size:1.4rem}.st-picked{color:var(--again);margin:0;font-weight:600}.st-ghost{background:var(--surface-2);box-shadow:none;color:#0000;border-style:dashed}.st-ghost .st-hanzi{visibility:hidden}.st-empty-hint{color:var(--muted);align-self:center;font-size:.9rem}.st-check{width:100%;min-height:52px}.st-near-miss{color:var(--hard);text-align:center;margin:0;font-weight:600}.st-pairs{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(var(--pair-rows,5), auto);gap:10px 12px;display:grid}.st-pair-col{grid-row:1 / span var(--pair-rows,5);grid-template-rows:subgrid;row-gap:10px;min-width:0;display:grid}.st-pair{border:2px solid var(--border);background:var(--surface);text-align:center;overflow-wrap:anywhere;border-radius:10px;justify-content:center;align-items:center;min-width:0;min-height:56px;padding:8px 10px;font-size:clamp(.875rem,3.8vw,1rem);line-height:1.25;display:flex}.st-pair .st-hanzi{font-size:1.5rem}.st-pair[aria-pressed=true]{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 10%, var(--surface))}.st-pair.st-right{border-color:var(--good);background:color-mix(in srgb, var(--good) 12%, var(--surface))}.st-pair.st-wrong{border-color:var(--again);background:color-mix(in srgb, var(--again) 12%, var(--surface))}.st-pair:disabled{opacity:1}.st-pair.st-right:disabled{opacity:.6}.st-mistakes{color:var(--muted);text-align:center;margin:0;font-size:.85rem}@media (prefers-reduced-motion:no-preference){.st-tile,.st-pair,.st-option{transition:border-color .12s,background-color .12s,transform 80ms}.st-tile:active:not(:disabled),.st-pair:active:not(:disabled){transform:scale(.97)}}.st-remind{flex-direction:column;align-items:stretch;gap:8px;display:flex}.st-remind-btn{min-height:44px}.st-remind-sub{color:var(--muted);font-size:.85em}.st-remind-cards{border:1px solid 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transparent)}.sl-status{text-align:center;min-height:1.4em;margin:0}.sl-record{width:100%;min-height:56px}.sl-recording{flex-direction:column;gap:10px;display:flex}.sl-recording .mic-level{background:var(--surface-2);border-radius:4px;height:8px;overflow:hidden}.sl-recording .mic-level span{background:var(--accent);height:100%;transition:width 60ms linear;display:block}.sl-review,.sl-self,.sl-recognize{flex-direction:column;gap:10px;display:flex}.sl-row{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.sl-row .sl-btn{flex:120px}.sl-btn,.sl-submit{min-height:48px}.sl-submit{width:100%}.sl-skip{align-self:center;min-height:44px;padding:0 16px}@media (prefers-reduced-motion:reduce){.sl-recording .mic-level span{transition:none}}.top-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.streak-chip{box-sizing:border-box;background:var(--surface-2);min-width:36px;min-height:36px;color:var(--muted);border-radius:999px;flex-shrink:0;align-items:center;gap:4px;margin-top:8px;padding:0 12px;font-weight:700;display:inline-flex}.streak-chip .flame{filter:grayscale();opacity:.6;font-size:1.05rem}.streak-chip.lit{background:color-mix(in srgb, #ff8a00 16%, var(--surface));color:var(--text)}.streak-chip.lit .flame{filter:none;opacity:1}.streak-chip:not(.none) .flame{filter:none;opacity:.9}.streak-chip .streak-days{font-variant-numeric:tabular-nums;font-size:1.05rem}