Dashboard
Click an item on the left and the content on the right changes.
Navigation
Sidebar
Navigation fixed to one side, so every main destination is always in view.
When to use it
- Back-office and tool products with many destinations
- People switch between areas often
When not to
- Only three or four destinations: a top bar is enough
- On narrow screens it eats the content width, so it usually becomes a drawer or bottom tabs
What to tell an AI tool
Put a fixed vertical navigation bar on the left that lists every main page, with the current page clearly marked.