Walk the World Purchase Steps Interaction

Upon tapping 'Purchase' in the confirmation dialog, the modal shrinks and fades out alongside the background dimming overlay. Simultaneously, the step counter at the bottom of the screen performs a rapid rolling ticker animation, counting down from 26,219 to 1,219 to reflect the 25,000 step deduction. The yellow counter pill itself undergoes a subtle springy scale-down and bounce. In the main view, the purchase options slide up and fade out, making way for the newly unlocked city walk cards which slide up into place with a staggered, springy animation.