Depth, default profile (PLAN §1.7)
Every pop is a non-interactive in-place crop inside an opaque cover or plate. Click-safe: dz ≤ 0.25 × s × 0.769 mm (s = shorter side of the smallest focusable under the crop): +10 needs s ≥ 52, +15 needs s ≥ 78.
Menus, alerts, sheets +10 (0 if destructive) · focused media tile +15 · Pause +10 · avatar +10 (over video: 0 until hole treatment G2 + off-axis hv).
Depths {0, +10, +15, +25}, ≤ 4 at rest. A modal open: only the modal pops (a focused source card keeps +15).
0 mm: window, rows, fields, both ornaments, /invites chrome, every control over media.
Crops at rest (modal open): People 0 (1) · Account 0–1 (1) · Invites 0 (1) · Photos 1 (1–2) · Viewer 0 (0) · Clip 0 (0) · Downloads 1 (1) · Store 0 (0).
Wearer profile (flag interactivePops, off): menus +30, sheets +30→+50, Pause +15.