The legacy .jb-* compat layer in core/buttons.css restated .jb-yellow as #f99d4d -> #f7631d, and because the public bundle loads after main.min.css that value overrode the reference-accurate #f59f54 -> #ff6922 gradient, so the check-in bookmark (and every other .jb-yellow surface) painted the wrong orange. Correct the gradient and rebuild the public bundle.
Also drop the dead is-done class and the attribute-less span wrapper from the signed card badge, which the reference theme does not have. The header dropdown variant keeps its class, locked by the navigation contract.
Set --text-base to 0.875rem to match the reference bootstrap body
metrics; em-based reference components (.img-badge, em utilities) now
render at reference scale site-wide. Compensate .btn-lg with
--text-md (18px, bootstrap btn-lg) to keep the size hierarchy. Simplify
the user-card badge rule to the line-height pin only.
Center FA icons in toggle-radius/btn chips, restore menu-item title flex baseline, and match CTA/logo vertical alignment so top bar text and icons no longer drift.