Wizard and stepper
The sticky bar under a flow: Back on the left, the save state (saved, unsaved, saving, failed) in the middle, and the one primary on the right. Phone: full width, 48px buttons, tab bar hidden.
Lifted from the approved family page at build time; interact with it.
Pinned to the bottom of the step. Save state on the left; on the right one primary action, with Back and the quieter actions before it.
Primary action states
.wz-bar.wz-save.btn-primary.btn-secondary.btn-tertiaryposition:sticky--warning--success from families/wizard-stepper/#action-bar