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var(--divider);border-radius:var(--radius);cursor:pointer;display:flex;flex-direction:column;gap:3px;min-height:44px;padding:10px 16px}.examples__item:hover{border-color:var(--accent)}.examples__expression{font-family:var(--font-body);font-size:17px;font-variant-numeric:tabular-nums lining-nums}.examples__note{color:var(--faint);font-size:11px}.screen--stage{display:flex;flex-direction:column;min-height:100vh}.stagebar{align-items:center;border-bottom:1px solid var(--divider);display:flex;flex:none;gap:12px;padding:10px 20px}.stagebar__brand{font-family:var(--font-heading);font-size:18px;font-weight:600}.stagebar__step{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums lining-nums;margin-left:auto}.tag{border:1px solid var(--accent);border-radius:999px;color:var(--accent-deep);font-size:11px;padding:2px 10px}.progress{background:color-mix(in srgb,var(--text) 10%,transparent);flex:none;height:3px}.progress__bar{background:var(--accent);height:100%;transition:width .35s 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14%,transparent);color:var(--accent-deep)}.board{--available-w: calc(100vw - var(--side-space, 30rem));--available-h: calc(100vh - var(--stack-space, 21rem));--cell: max( 22px, min( 76px, calc(var(--available-w) / var(--cols)), calc(var(--available-h) / var(--rows)) ) );background-image:repeating-linear-gradient(90deg,transparent 0 calc(var(--cell) - 1px),color-mix(in srgb,var(--text) 10%,transparent) calc(var(--cell) - 1px) var(--cell));display:grid;grid-template-columns:repeat(var(--cols),var(--cell))}.board__slot{align-items:center;display:flex;justify-content:center;position:relative}.board__slot--main{height:var(--cell)}.board__slot--label{align-items:flex-end;height:calc(var(--cell) * .4)}.board__cell{font-variant-numeric:tabular-nums lining-nums;line-height:1}.board__cell--digit{font-size:calc(var(--cell) * .58)}.board__cell--sign{color:var(--accent-deep);font-family:var(--font-heading);font-size:calc(var(--cell) * 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