Suggestion: Upgrade Tailwind to v4

[crimsonjay0]

What problem do you want to solve?

The project is using an older Tailwind version and is missing v4 improvements and compatibility with its current ecosystem.

What do you think is the correct solution?

Upgrade Tailwind and related tooling to v4.

Participation

• I am willing to submit a pull request for this change.

AI acknowledgment

• I did not use AI to generate this issue report.
• (If the above is not checked) I have reviewed the AI-generated content before submitting.

Additional comments

No response