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.rounding-place{color:#333}}.pattern-list{counter-reset:problem;flex-direction:column;gap:0;display:flex}.pattern-row{counter-increment:problem;border-bottom:1px solid var(--color-border-light);align-items:center;gap:12px;padding:10px 0;display:flex;position:relative}.tool-panel:has(.answer-key) .pattern-row{padding-left:28px}.tool-panel:has(.answer-key) .pattern-row:before{content:counter(problem);font-variant-numeric:tabular-nums;color:var(--color-text-muted);font-size:10px;font-weight:600;line-height:1;position:absolute;top:2px;left:0}.pattern-seq{flex-wrap:wrap;align-items:center;gap:2px;display:flex}.pattern-cell{align-items:center;gap:0;display:inline-flex}.pattern-val{font-family:var(--font-figure);font-variant-numeric:tabular-nums;text-align:center;min-width:1.5em;font-size:16px;font-weight:500}.pattern-comma{font-family:var(--font-figure);color:var(--color-text);margin-right:8px;font-size:16px}.ws-instructions{color:var(--color-text-muted);margin-top:6px;font-size:13px;font-style:italic}@media print{.pattern-row{break-inside:avoid;page-break-inside:avoid;border-bottom-color:#ddd;height:49px;padding-top:0;padding-bottom:0}.tool-panel:has(.answer-key) .pattern-row:before{color:#555}.pattern-comma,.ws-instructions{color:#333}}.colarith-notebook .colarith-op.divide-mark{width:calc(2 * var(--nb-sq));font-size:calc(var(--nb-sq) * .7);white-space:nowrap}.colarith-notebook .coldiv-item{align-items:flex-start}.coldiv-problem{grid-template-columns:repeat(var(--cd-cols), var(--nb-sq));grid-template-rows:repeat(var(--cd-rows), var(--nb-sq));--colarith-cell-size:var(--nb-sq);font-family:var(--font-figure);font-size:calc(var(--nb-sq) * .77);font-variant-numeric:tabular-nums;letter-spacing:0;font-weight:600;line-height:1;display:grid;position:relative}.coldiv-quotient{grid-auto-flow:column;grid-auto-columns:var(--nb-sq);display:grid}.coldiv-rule{background:var(--color-text);-webkit-print-color-adjust:exact;print-color-adjust:exact;position:absolute}.coldiv-rule-v{left:calc(var(--cd-vx) * var(--nb-sq) - 1px);top:calc(var(--cd-vy0) * var(--nb-sq));width:2px;height:calc((var(--cd-vy1) - var(--cd-vy0)) * var(--nb-sq))}.coldiv-rule-h{left:calc(var(--cd-hx0) * var(--nb-sq));top:calc(var(--cd-hy) * var(--nb-sq) - 1px);width:calc((var(--cd-hx1) - var(--cd-hx0)) * var(--nb-sq));height:2px}@media print{.coldiv-rule{background:#333}}.tables-sheet{width:max-content}.tables-grid{flex-wrap:wrap;justify-content:center;gap:14px;width:902px;display:flex}.tables-box{box-sizing:border-box;flex:0 0 calc((100% - (var(--tables-cols,5) - 1) * 14px) / var(--tables-cols,5));border:1px solid var(--color-border-dark);font-family:var(--font-figure);font-variant-numeric:tabular-nums;font-size:var(--tables-font,15px);line-height:var(--tables-line,24px);color:var(--color-text);white-space:nowrap;border-radius:10px;grid-template-columns:repeat(5,auto);place-content:start center;column-gap:.32em;padding:8px 12px;font-weight:600;display:grid}.tables-fact{display:contents}.tables-left,.tables-right{text-align:right}.tables-result{text-align:left}.tables-sign{text-align:center;color:var(--color-text-muted);font-weight:500}.tables-blank{vertical-align:-.2em;border-bottom:1.5px solid var(--color-primary);background:linear-gradient(to top, var(--color-primary-faint), transparent);width:2em;height:1em;display:inline-block}.tables-key .tables-grid{width:100%}.tables-key .tables-answer{text-underline-offset:.15em;font-weight:800;text-decoration:underline;text-decoration-thickness:1.5px}@media print{.tables-sheet,.tables-sheet .tables-grid{width:100%}.tables-box{color:#111;border-color:#555}.tables-sign{color:#333}.tables-blank{background:0 0;border-bottom-color:#333}}.colarith-notebook .frac-row{height:calc(2 * var(--nb-sq));align-items:stretch;display:flex}.colarith-notebook .frac{grid-template-columns:repeat(var(--frac-w), var(--nb-sq));grid-template-rows:repeat(2, var(--nb-sq));display:grid;position:relative}.colarith-notebook .frac:after{content:"";left:3px;right:3px;top:calc(var(--nb-sq) - 1px);background:var(--color-text);-webkit-print-color-adjust:exact;print-color-adjust:exact;height:2px;position:absolute}.colarith-notebook .frac-slot{width:calc(var(--frac-slot) * var(--nb-sq));justify-content:flex-end;display:flex}.colarith-notebook .frac-mixed{align-items:stretch;display:flex}.colarith-notebook .frac-tall{width:var(--nb-sq);height:calc(2 * var(--nb-sq));justify-content:center;align-items:center;display:inline-flex}.colarith-notebook .frac-sign{font-size:calc(var(--nb-sq) * .9);color:var(--color-text)}.colarith-notebook .frac-box{width:max(var(--nb-sq) - 10px, var(--nb-sq) * .58);height:max(var(--nb-sq) - 10px, var(--nb-sq) * .58);border:1.5px solid var(--color-primary);background:var(--color-primary-faint);border-radius:2px;display:inline-block}@media print{.colarith-notebook .frac:after{background:#333}.colarith-notebook .frac-sign{color:#111}.colarith-notebook .frac-box{background:0 0;border-color:#555}}.colarith-notebook .decimals-marked{position:relative}.colarith-notebook .decimals-mark{transform:translate(-50%, var(--decimals-mark-drop,.12em));color:var(--color-text);pointer-events:none;font-weight:700;line-height:1;position:absolute;bottom:0;left:0}@media print{.colarith-notebook .decimals-mark{color:#111}}.colarith-notebook .factors-label{width:calc(4 * var(--nb-sq));font-size:calc(var(--nb-sq) * .62);letter-spacing:.02em;white-space:nowrap;justify-content:flex-end;padding-right:4px;font-weight:700}@media print{.colarith-notebook .factors-label{color:#111}}.colarith-notebook .roots-exp{font-size:calc(var(--nb-sq) * .5);padding-top:calc(var(--nb-sq) * .08);justify-content:flex-start;align-items:flex-start;font-weight:700;line-height:1}.colarith-notebook .roots-radical{padding:0;display:block}.roots-mark{width:100%;height:100%;display:block}.colarith-notebook .roots-radicand{height:var(--nb-sq);border-top:2px solid var(--color-text);align-items:center;display:inline-flex}@media print{.colarith-notebook .roots-radicand{border-top-color:#111}}.colarith-notebook .solvex-var{font-style:italic;font-weight:700}.colarith-notebook .solvex-work{width:100%;height:calc(var(--solvex-rows) * var(--nb-sq))}