As I stated in another post, I'm brand new to Concrete5 and am trying to wrap my head around it.

I have received html and css for the template(s) for a site.

In what order should things happen?

Should I create the theme first? I've seen two different tutorials on creating a theme. What is the definitive method?

Should I go into Concrete before creating the theme and create pages for all the menu options so that the theme will see them?

There are submenus for the main menu. How do I tell Concrete that the submenu pages are submenu pages and go in a submenu?

How do I incorporate more than one css file? The main page has one version and the other pages have a different arrangement.

Thanks for your help. I feel like I'm banging my head against a wall.