Time tracking dashboard with JavaScript to input & switch between data

What are you most proud of, and what would you do differently next time?

I spent a lot of time getting the layout to work well across viewport sizes without the use of any media queries (I did use container queries, though), thanks to the help of Every Layout. I think it worked out great, and makes me want to do more with these powerful, but more simplified layout algorithms.

What specific areas of your project would you like help with?

I'm not sure about my JavaScript approach. I chose to display all of the data, but then hide the elements that were not selected at the time. And then when selected, the JavaScript will show those selected data and hide the others. Would love to know if others have a better approach for doing this kind of thing.