The global mobile fullscreen modal rule (`.modal-lg`, `.modal:not(.confirm-dialog)`)
forced the embedded Planning shell to 100dvh, overflowing its bounded `.planning-view`
pane. `overflow:hidden` then clipped the footer action buttons and blocked scrolling.
Qualify the mobile embedded override as `.planning-view.open .planning-modal--embedded`
so it outranks the global rule, and re-pin `max-height:100%` so the inner flex scroll
chain works. Adds a CSS regression test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
c202053725