Sticky in-page section index with scroll-spy and unsaved-edit markers
Sticky vertical index on xl+, wrapping chip row below. Sections hold unsaved edits via dirtyIds — the amber dot. j/k walks the index, Enter jumps.
Section content. Each card is tall enough to require scrolling — jump between them with the nav.
Section content. Each card is tall enough to require scrolling — jump between them with the nav.
Section content. Each card is tall enough to require scrolling — jump between them with the nav. This one is marked dirty (unsaved changes).
Section content. Each card is tall enough to require scrolling — jump between them with the nav.