Mobile-Friendly CSS

This is a shorter update, but an important one — I’ve tweaked the site’s HTML, CSS and JavaScript to make the site much more mobile-friendly. Ideally, it should scale itself better to any phone screen size (including displaying an alternate site logo for narrow screens).

It’s not completely ideal, and I feel like I could fix it up a bit better in the future with some more tweaks, but it’s a huge improvement over how it looked before. If you have any issues with it, please let me know in the comments, and I’ll see what I can do. :3