Mobile audit at 390px viewport showed every scene with topbar
expanded to ~1333px because of fixed-width brand-lock + tabs +
topbar-actions in a grid-template-columns auto auto 1fr auto.
- Topbar collapses to single column with scrollable tab row
- Tabs become horizontally scrollable; smaller font/padding
- Hide topbar-mid (context chips) and user-email/topbar-age (the
user knows who they are)
- Approvals split collapses at 700px instead of 900px
- Compact scene padding (16/12) on mobile
shad
93de195b0a