Bugs

The shared stacked-layout contract (packages/lumina/styles/layouts/split.css) assumes media-first source order: top is plain DOM order, bottom flips visually via a generic column-reverse. But hero, feature, and step emit content-first DOM (text before media — the right reading order for their classic media-beneath-text presentation). Result: both stacked labels lie — the default top rendered media at the bottom, and an explicit bottom hoisted it to the top. Found in SPEC-101 review (PR #432); pre-existing.