Standalone, OnPush. Label/hint/error slots, required marker, aria-describedby
wiring, role=alert on error. Colors via existing tenant CSS vars with fallbacks.
Standalone, OnPush. Backdrop click and Escape close, focus trap with
return-focus on close, role=dialog/aria-modal. Sizes sm/md/lg. Colors/
radius/shadow/spacing via existing tenant CSS vars with fallbacks.
Standalone, OnPush, content-projection container. Padding none/sm/md/lg,
bordered and interactive variants. Colors/radius/shadow/spacing consumed
via existing tenant CSS vars with fallbacks.
ControlValueAccessor-based, standalone, OnPush. Sizes sm/md/lg, states default/error/success.
Colors/radius/spacing/transitions consumed via existing tenant CSS vars (--border-color,
--primary-color, --error-color, --success-color, etc) with fallbacks - compatible with
bootstrap JSON theming and Project Editor live preview.
