Oikos

Fixed

• Dashboard blank-screen on scroll — new lead identified after the previous glass/gradient theories were ruled out by an iOS prefers-reduced-transparency: reduce test (bug persisted even with reduced transparency, so backdrop-filter and color-mix gradients are not the cause). Remaining differentiator: only the dashboard renders a .fab-backdrop element — a position: fixed; inset: 0 full-viewport overlay that was always in the DOM (initial opacity: 0) so the FAB speed-dial open/close could cross-fade. iOS Safari and iOS PWA repeatedly composite fixed-positioned full-viewport elements per scroll frame, which is a known trigger for the blank-screen symptom in this exact scenario. Other module pages don't have this overlay and didn't reproduce the bug. Switched .fab-backdrop from opacity: 0 + always-on position: fixed; inset: 0 to display: none when inactive; only laid out when the FAB speed-dial is open. The opacity cross-fade is lost (was barely perceptible) but the dashboard scroll path no longer carries a permanent full-viewport fixed layer.