/* The app shell now lives in the SDK as EwAppShell (src/Ew.Ui.Components/EwAppShell.razor
   + .razor.css). The portal consumes it from Layout/MainLayout.razor, so the former
   .app-shell / .app-main / .app-header / .app-content rules that lived here have been
   removed -- they would be dead CSS. Portal-specific sidebar brand/nav styling lives in
   portal-custom.css. This file is intentionally left as a pointer; the <link> in
   index.html is harmless and kept to avoid churn in static-asset ordering. */