A few things that have been sitting on the to-do list.
What happened
Dark mode. There's now a toggle in the header with three states: follow your device, always light, always dark. It remembers your choice across visits. The button cycles through them with a sun, a moon, and a little monitor icon.
Before this, the site only followed your device's preference — no way to override it.
Error pages. If something breaks, you get a real "something went wrong" page now with a try-again button. And if you type a URL that doesn't exist, you get a proper 404 page instead of a blank white screen. Both have links back to the home page.
Meta tags. Added a couple of hints for the browser about what color scheme the site supports — small thing, smoother experience.
Why
All three were polish items. The site worked without them, but these are the small details that make it feel intentional rather than unfinished.