sidebar too far left

My website is here:
https://trailsuppliesonline.com/

I like the space in between the search in the sidebar and the main content, but the rest of the sidebar seems too close. I want to give it some air in between the sidebar and the main content, without also moving the search bar too far over. I want just the content below the search bar to move over in line, more or less, with the search bar.

Is this possible? Can you help? Thanks!