Level 3 Page
Reached through a nested third-level menu entry.
Third level reached
The sidebar opened both parent groups automatically to get you here, and it will do the same on a fresh page load — the active item is resolved from the URL, not hardcoded per page.
A word of warning
Three levels is usually one too many.
If a page needs three clicks to reach, it is often better promoted into the parent group or
surfaced through the command palette instead. The nesting exists because some products genuinely need it, not
because it is a good default.