I moved my new blog from the server root

and I really shouldn’t have, should I? ??

I installed it in the root directory, didn’t realise it would take precedence over what was already there and come up as the index page etc. so I deleted all the wp stuff and created a directory called blog and reinstalled it all in there. Now it kind of appears but rather obviously paths are wrong – the appearance is wrong, I suppose css isn’t being applied – so I’m wondering how I can fix this so it all looks ok. I only did this yesterday, new blog, no posts or anything like that to worry about. I’m guessing it should be quite simple. Old path is https://www.domain.com/ and new path is https://www.domain.com/blog/

Any help appreciated, thanks!

BB