We need to make a theme very similar to this one here (w w w . visit sl ov en ia .i t <-- remove spaces)
As you can see the theme is responsive and comes with a left sidebar, main content in the middle, and a right sidebar.
If you resize it or you visit it from your smartphone the whole website will resize to match the screen size.
Please not that WE DON'T want an exact copy but this is to explain the main functions we are interested in.
Feel free to navigate the above mentioned site and let us know what timeframe you need to deliver the theme and requested price.
In particular pay attention to the header, the top menu, and the way the elements are resized when changing from desktop to smartphone size.
Please bid only if you pretty well understands Wordpress framework and theme functions.
Please let us know if you need more info.