Critcle CSS on Magento 2

Hi,

I need 1 css file which has all critcle I can replace the "style-m.css" + "style.css" on Magento 2

The Magento 2 file compiled if 500KB way to big and slowing down Google SEO VITALS

Then I can move "style-m.css" "style.css" below the fold for SEO vitals

https://www.flooringhut.co.uk

I have tried some tools for a bit and tricky to get the extact code

Thanks