Improve “User Target Roles” & “Feature Highlights” grids

**Estimate:** 2.5 hours

Description:

- Fix uneven alignments across grid blocks.
- Adjust background color sections for clarity and consistency.
- Improve padding/margins to give each grid item room to breathe.

Why this matters:

These sections communicate value and audience. Cleaner spacing and alignment improves scannability and makes the product appear more polished and trustworthy.