Button
Triggers an action. At most one primary per view.
Variant
Geometry never changes between variants, so a row of mixed variants aligns.
Size
State
A loading button keeps focus but ignores presses. A disabled one leaves the tab order.
Why
A loading button keeps its focus but refuses activation — Tab to Save, press Enter, the count must not move. `disabled` would drop it from the tab order mid-interaction.
activations: 0