The goal of this change was to speed up my CSS pipeline. Previously
builds would take up to 30s because it had to rebuild the CSS for every
page (I inlined the CSS).
This updates the pipeline to remain somewhat the same, but offloads the
busywork of computing my theme CSS (my design system in other words),
and is replaced by a mostly static file (`css/global/lilypad.css`),
which I can update as my design system changes.
I also offloaded several of my utility classes as I know I will want to
use them in other sites I design, so it made sense to move them as well.
The new pipeline makes use of 11ty's bundle feature (newly included in
11ty v3), which allows me to bundle all my CSS together into one file.
Since I know my core styles like `lilypad.css` will always remain the
same, I decided to keep that inline. I use the `transforms` feature for
bundling to run a PostCSS transform on the bundled output, which
resolves any imports and minifies the final output.
In order to cut down my build times even further, I removed my XML
minifier - it was taking upwards of 3 seconds to minify XML to probably
a small benefit to end users.
