Without padding, max-w-md (448px) modals touch the viewport edges
on a 375px screen. p-4 on the overlay clamps them inside the safe
area. Covers all routes that use the shared <Modal> component
(discover track-confirm, quarantine typed-DELETE, users
password-reset, etc.).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>