Wise Numbers Scale Up Down Interaction

This interaction showcases a highly responsive currency input field in the Wise app. As the user types digits, the font size dynamically shrinks to prevent text wrapping and maintain a single-line layout. Conversely, when digits are deleted, the font size smoothly scales up to maximize readability. Additionally, switching active input fields triggers a fluid transition where the active field expands and turns bright green, while the inactive field shrinks and dims to a muted grey, accompanied by staggered slide-ins of supporting transaction details.