Lock the app to the viewport on screens <=600px wide so the page itself
never scrolls: the topbar becomes a slim rail and the play area fills the
rest. Cards, trays, and type shrink so a shop round or a battle fits on
one screen; the shop and deck rows scroll sideways when a full six-pet
deck outgrows the width, keeping each tray's height fixed. Arrange is the
one screen allowed to scroll past the viewport, since a battle line can
run long.
Greyson Parrelli
de9bb480c2