# Responsive Rules

Desktop:
- preserve left rail, center workspace, right rail
- allow the right rail to resize, collapse, and remember width

Tablet:
- left rail may compress but remains persistent
- right rail may collapse into a wider drawer

Mobile:
- one-column center content
- first-level navigation stays reachable at all times
- right rail becomes drawer or fullscreen sheet

Never:
- create a separate mobile information architecture
- hide approvals, incidents, or current activity behind more than one extra tap
