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var(--color-line-strong,#b8c0ba);background:var(--color-paper,#fff);min-width:48px;min-height:48px;color:var(--color-ink-muted,#65707d);cursor:pointer;border-radius:10px;font-size:1.35rem;font-weight:750}.groups-module__OpWTKq__emptyPart.groups-module__OpWTKq__selected{border-color:var(--color-action,#14665c);background:var(--color-action-soft,#e8f4f1);color:var(--color-action,#14665c)}.groups-module__OpWTKq__missingRow{align-items:start}.groups-module__OpWTKq__editorRow.groups-module__OpWTKq__multiPartRow{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));place-items:start center;display:grid}.groups-module__OpWTKq__multiPartRow .groups-module__OpWTKq__joinMark{display:none}.groups-module__OpWTKq__traceWorkspace{gap:clamp(.75rem,3vw,1.25rem);display:grid}.groups-module__OpWTKq__expressionCard{font-variant-numeric:tabular-nums;justify-content:center;gap:.6em;font-size:clamp(2rem,9vw,3rem);font-weight:700;display:flex}.groups-module__OpWTKq__traceScene{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:clamp(.5rem,2vw,1rem);display:grid}.groups-module__OpWTKq__traceCounter{cursor:pointer;min-width:2.25rem;min-height:2.25rem;padding:0}.groups-module__OpWTKq__counted{outline:3px solid var(--color-action,#14665c);outline-offset:2px}.groups-module__OpWTKq__startAt,.groups-module__OpWTKq__startOver{border:1px solid var(--color-line-strong,#b8c0ba);background:var(--color-paper,#fff);min-height:44px;color:var(--color-ink,#20242a);cursor:pointer;border-radius:10px;padding:0 14px;font-weight:750}.groups-module__OpWTKq__startAt.groups-module__OpWTKq__selected{border-color:var(--color-action,#14665c);background:var(--color-action-soft,#e8f4f1);color:var(--color-action,#14665c)}.groups-module__OpWTKq__startOver{justify-self:center}
.equation-module__J_Z1la__layout{gap:clamp(1rem,4vw,1.75rem);width:min(100%,42rem);margin-inline:auto;display:grid}.equation-module__J_Z1la__story{border:1px solid var(--color-line);border-radius:var(--radius-panel,8px);background:var(--color-surface);grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:clamp(.65rem,3vw,1.5rem);padding:clamp(.9rem,3vw,1.25rem);display:grid}.equation-module__J_Z1la__objectStory{border:1px solid var(--color-line);border-radius:var(--radius-panel,8px);background:var(--color-surface);grid-template-columns:minmax(0,1fr) auto minmax(0,.8fr);align-items:center;gap:clamp(.65rem,3vw,1.5rem);padding:clamp(.9rem,3vw,1.25rem);display:grid}.equation-module__J_Z1la__awayArrow{color:var(--color-ink-muted);font-size:clamp(1.5rem,6vw,2rem)}.equation-module__J_Z1la__awayArea{border:2px dashed var(--color-line-strong);border-radius:var(--radius-control,8px);min-height:3.2rem;padding:.5rem}.equation-module__J_Z1la__counterGroup{align-content:center;justify-items:center;gap:.45rem;min-width:0;display:grid}.equation-module__J_Z1la__groupLabel{color:var(--color-ink-muted);font-size:.8rem;font-weight:700}.equation-module__J_Z1la__groupCount{font-variant-numeric:tabular-nums;font-size:1rem;font-weight:750}.equation-module__J_Z1la__counters{flex-wrap:wrap;place-content:center;gap:.35rem;min-height:2.8rem;display:flex}.equation-module__J_Z1la__counter{aspect-ratio:1;border:2px solid var(--color-action-strong);background:var(--color-action-soft);border-radius:50%;width:clamp(1.35rem,5vw,1.75rem)}.equation-module__J_Z1la__counterMuted{border-color:var(--color-line-strong);background:var(--color-paper)}.equation-module__J_Z1la__storyAction{color:var(--color-ink-muted);font-size:clamp(1.7rem,8vw,2.5rem);font-weight:650}.equation-module__J_Z1la__builder{outline:none;gap:.9rem;display:grid}.equation-module__J_Z1la__builder:focus-visible{border-radius:var(--radius-control,8px);outline:3px solid var(--color-review);outline-offset:4px}.equation-module__J_Z1la__equationDisplay,.equation-module__J_Z1la__givenEquation{overflow-wrap:anywhere;border:2px solid var(--color-line-strong);border-radius:var(--radius-panel,8px);background:var(--color-paper);min-height:5.4rem;color:var(--color-ink);font-variant-numeric:tabular-nums;letter-spacing:.04em;text-align:center;place-items:center;font-size:clamp(2rem,9vw,3.4rem);font-weight:750;line-height:1.15;display:grid}.equation-module__J_Z1la__equationEmpty{color:var(--color-ink-muted);letter-spacing:0;font-size:clamp(1rem,4vw,1.25rem);font-weight:650}.equation-module__J_Z1la__numberPad,.equation-module__J_Z1la__symbolPad{gap:.5rem;display:grid}.equation-module__J_Z1la__numberPad{grid-template-columns:repeat(6,minmax(0,1fr))}.equation-module__J_Z1la__symbolPad{grid-template-columns:repeat(5,minmax(0,1fr))}.equation-module__J_Z1la__numberPad button,.equation-module__J_Z1la__symbolPad button{border:1px solid var(--color-line-strong);border-radius:var(--radius-control,8px);background:var(--color-paper);min-height:3.25rem;color:var(--color-ink);cursor:pointer;justify-content:center;align-items:center;gap:.35rem;font-size:1.3rem;font-weight:750;display:flex}.equation-module__J_Z1la__symbolPad button:nth-child(-n+3){background:var(--color-action-soft);color:var(--color-action-strong);font-size:1.5rem}.equation-module__J_Z1la__numberPad button:hover:not(:disabled),.equation-module__J_Z1la__symbolPad button:hover:not(:disabled){border-color:var(--color-action)}.equation-module__J_Z1la__numberPad button:active:not(:disabled),.equation-module__J_Z1la__symbolPad button:active:not(:disabled){transform:translateY(1px)}.equation-module__J_Z1la__numberPad button:focus-visible,.equation-module__J_Z1la__symbolPad button:focus-visible{outline:3px solid var(--color-review);outline-offset:2px}.equation-module__J_Z1la__numberPad button:disabled,.equation-module__J_Z1la__symbolPad button:disabled{cursor:not-allowed;opacity:.55}.equation-module__J_Z1la__controlLabel{font-size:.78rem}@media (max-width:420px){.equation-module__J_Z1la__numberPad{grid-template-columns:repeat(4,minmax(0,1fr))}.equation-module__J_Z1la__symbolPad{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (prefers-reduced-motion:reduce){.equation-module__J_Z1la__numberPad button:active:not(:disabled),.equation-module__J_Z1la__symbolPad button:active:not(:disabled){transform:none}}
.calculation-module__v5WfWq__layout{gap:clamp(1rem,4vw,1.75rem);width:min(100%,34rem);margin-inline:auto;display:grid}.calculation-module__v5WfWq__expression{border:1px solid var(--color-line);border-radius:var(--radius-panel,8px);background:var(--color-surface);min-height:5.75rem;color:var(--color-ink);font-variant-numeric:tabular-nums;justify-content:center;align-items:center;gap:clamp(1rem,6vw,2rem);font-size:clamp(2.7rem,14vw,4.5rem);font-weight:750;line-height:1;display:flex}.calculation-module__v5WfWq__fluency .calculation-module__v5WfWq__expression{background:0 0;border-color:#0000;min-height:clamp(7rem,25vh,10rem)}.calculation-module__v5WfWq__counterModel{border:1px solid var(--color-line);border-radius:var(--radius-panel,8px);background:var(--color-paper);grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:.8rem;padding:.85rem;display:grid}.calculation-module__v5WfWq__counterModel>div{justify-items:center;gap:.45rem;display:grid}.calculation-module__v5WfWq__counterModel>div>span{color:var(--color-ink-muted);font-size:.8rem;font-weight:700}.calculation-module__v5WfWq__counterModel>strong{color:var(--color-ink-muted);font-size:1.8rem}.calculation-module__v5WfWq__counterGroup{flex-wrap:wrap;place-content:center;gap:.35rem;min-height:2.8rem;display:flex}.calculation-module__v5WfWq__counter{aspect-ratio:1;border:2px solid var(--color-action-strong);background:var(--color-action-soft);border-radius:50%;width:clamp(1.25rem,5vw,1.7rem)}.calculation-module__v5WfWq__counterMuted{border-color:var(--color-line-strong);background:var(--color-paper)}.calculation-module__v5WfWq__keypad{outline:none;gap:.85rem;display:grid}.calculation-module__v5WfWq__keypad:focus-visible{border-radius:var(--radius-control,8px);outline:3px solid var(--color-review);outline-offset:4px}.calculation-module__v5WfWq__numberDisplay{border:2px solid var(--color-line-strong);border-radius:var(--radius-panel,8px);background:var(--color-paper);min-height:4.8rem;color:var(--color-ink);font-variant-numeric:tabular-nums;place-items:center;font-size:clamp(2.3rem,11vw,3.5rem);font-weight:750;line-height:1;display:grid}.calculation-module__v5WfWq__numberEmpty{color:var(--color-ink-muted)}.calculation-module__v5WfWq__digitGrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem;display:grid}.calculation-module__v5WfWq__withTen>button:last-child{grid-column:1/-1}.calculation-module__v5WfWq__digitGrid button{border:1px solid var(--color-line-strong);border-radius:var(--radius-control,8px);background:var(--color-paper);min-height:3.35rem;color:var(--color-ink);cursor:pointer;justify-content:center;align-items:center;gap:.35rem;font-size:1.35rem;font-weight:750;display:flex}.calculation-module__v5WfWq__digitGrid button:hover:not(:disabled){border-color:var(--color-action);background:var(--color-action-soft)}.calculation-module__v5WfWq__digitGrid button:active:not(:disabled){transform:translateY(1px)}.calculation-module__v5WfWq__digitGrid button:focus-visible{outline:3px solid var(--color-review);outline-offset:2px}.calculation-module__v5WfWq__digitGrid button:disabled{cursor:not-allowed;opacity:.55}.calculation-module__v5WfWq__controlLabel{font-size:.78rem}@media (max-width:420px){.calculation-module__v5WfWq__layout{gap:.9rem}.calculation-module__v5WfWq__expression{min-height:4.8rem}.calculation-module__v5WfWq__digitGrid button{min-height:3rem}}@media (prefers-reduced-motion:reduce){.calculation-module__v5WfWq__digitGrid button:active:not(:disabled){transform:none}}