So what exactly is "professional dress"?
Same with "relaxed professional"...
I'm getting a little bit freaked out because I have no idea what to wear haha

for guys professional:

Must wear a blazer, shirt and tie, slacks or a suit.
Dress shoes are required.

mens relaxed prfessional attire:

Collared or golf/polo shirts and casual dress pants (khakis).

womens prfessional:

Dresses, blouses, skirts, pants, or pant suits

womens relaxed professional:

Professional attire or dress pants and blouses.