I built a custom WordPress site for some artists. I'm making one page that is entirely different from the rest of the site. Actually, that and a single.php page. It's for a specific new book, and the only reason it's on the same install is that it shares the blog posts. The rest is all specific.
These pages don't need any css or js from the rest of the site - in fact, that is getting in my way. I'm having to overqualified everything and I worry that spill over is going to break the main site.
They have their own header-books.php and footer-books.php
How can I get them to have their own functions.php so that I can pull in css and js that is totally separate from the main site?
(ps - it's way too late for multi site or any big ideas)