Summary

Two layout defects that only appear once there is enough content to expose them.

Fixed

A stepper counts only the steps it actually renders. A conditionally rendered panel still reaches it as a child, so a hidden step was counted: Submit never appeared on the real last step, a dead Next took its place, and clicking it landed on a step with nothing in it. Each hidden step cost another click, and the per-step validation gate read past the end of its own array and stopped blocking (#120)
A step that disappears after the user has already passed it no longer strands the wizard. The index is kept within the steps that still exist, so Submit stays reachable, Previous moves rather than absorbing a click per vanished step, and hiding every step no longer leaves a dead Next behind (#120)
A data page keeps its paginator inside the height it was given. The table grew to its content instead of filling the pane, so a full page of rows pushed the paging controls past the bottom of the frame and clipped them, leaving no way to reach the next page. A short page fit and looked correct (#126)
A data page with a details component keeps its paginator in frame too. The split view sizes its panes from a stylesheet the package never imported, so the pane grew to content and clipped the paginator exactly as before, and the two panes stacked instead of siding. The stylesheet now ships with the component, so there is nothing for a consumer to import (#126)

A data page without a details component no longer renders a split view, and a data page now requires an ancestor with a real height — documented, with a minimum height so a page that does not provide one stays usable rather than collapsing (#126)