Template messed up!

I know this isn't the best way to start the day, but this morning my new website looks like this .
Yesterday it was ok when I stopped working on it, I really don't know what could have happened during the night. I disabled all the plugins, extensions and custom CSS but it still looks weird.
What could it be?

Thanks

Hi there, sorry I dont know where the problem is.
But our css ffiles are not loading!

Well, what you said was quite helpful.
I emptied the /media/template/ folder and now everything seems working fine.Is it something I should do occasionally? There were a lot of unused files in there.