Zend certified PHP/Magento developer

Where can I restructure the html for the magento 2 product view page?

I am trying to theme my product view page but I cannot find the correct file to override in order to pull in all of the data where I want it.

in my /app/design/frontend/theme/Magento_Catalog/templates/product/view I can see a lot of different template files for some of the items being brought in, like Add to cart and details.

What I am looking for is a file where those are being pulled in from, so that If I wanted to I could wrap details.phtml and addtocart.phtml into two divs side by side.