I ain’t slept in two days so off to bed now, but to quickly reply at a glance.
The locaiton of your css is here:
https://www.scoremoreclients.com/blog/wp-content/themes/default/style.css
I think you may have made the error when doing your install. Can you actually login in yet> If you can go to options I think, and there should be an option to change both the actual path of the install (in case it’s wrong), and the desired domain. Change one or the other and that should fix at least the problem with the links.
Then go to index.php file and find the part where it refers to link rel blah blah and change that so it removes the period and refers to domain.com/blog/whatever
Sorry if the instructions aren’t concise, and I’m sure there’s a more global way to do it, I’m just totally shattered. Perhaps hold fire someone intelligent to reply before you start playing wit things. As longas you get into your admin panel at the very least, it’s a start.
EDIT: you replied so fast to your own post, well you can bak up your files and posts and then delete everything and reinstall WP – if you had problems and still went through with it, then it may have messed something up, in which case I would consider a fresh install. It would save you trouble in the long run I expect, and perhaps avoid problems with other elements you decide to put in there.
EDIT2: I noticed you don’t have any posts at all so, I think it might be best to install and install properly than to fix an intermittent problem with the paths. Still hold fire for soemone else to reply, alwasy good to have a second opinion (even if my own dr thinks he’s God)