Root cause: sentinel element with `absolute top-0` inside PatientBanner was
positioned at viewport top, always triggering the IntersectionObserver's
-100px rootMargin threshold — banner was permanently stuck in condensed state.
Fix: Restructured PMRInterface layout from document-scroll to flex container
with explicit scroll container (`overflow-y-auto` on main). Lifted scroll
condensation logic to PMRInterface, passing `isCondensed` prop down to
PatientBanner. Replaced IntersectionObserver with scroll event listener on
the main element for reliable scroll position detection.
Key changes:
- PMRInterface: flex h-screen overflow-hidden layout (sidebar + content column)
- PatientBanner: accepts isCondensed prop, removed sticky/sentinel/hook
- ClinicalSidebar: h-full instead of h-screen sticky (parent handles sizing)
- useScrollCondensation: scroll event on container element via callback ref
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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