Optimize CSS and JS for Website

I need a skilled developer to remove all unused CSS and JS from my entire website (https://adventureandaman.com/) and give me only used css file.

Requirements:
- Remove unused CSS and JS, no libraries need preservation.
- Test:
- Responsive design
- Form functionality
- Interactive elements


Ideal Skills:
- Proficiency in web development
- Experience with CSS and JS optimization
- Strong testing skills for responsive and interactive elements