I need a Blank but arranged theme

I am still a beginner … I needed a very basic theme to start with … I tried some of the themes like BLANK and others … but that’s not exactly what I want …
I want it blank but at the same time I need it arranged where I can see clearly the header, the footer, the sidebar, … etc (not piled up upon each other)…

I need it also to be easy to trace in terms of what PHP files I need to modify to achieve whatever I need…

If you understand what I mean, do you know such a theme???