First of all, how can you steal this idea from my head? (joking) I had a similar idea but nothing fully developed.
About the game: I don't know if this is cannon but I love the idea of the beta site. Especially with regard to the game. A small detail that holds everything together so well.
About the criticism:
The worst thing in my opinion is the readability. The background is great but maybe adding a black or blue text background with 05 - 15 % transparency could improve the readability a lot. Especially the blue of the stars and the font are very similar. I had highlighted the text to make it easier to read. (but I am also dyslexic)
Secondly: The second page is actually very filled. The marging on the left and right is ok, but there is not much space at the top and bottom. Likewise, the patting in the Scenario List is almost not there. Maybe reducing the number columns, the header and maybe reordering the designation table from 3 rows and 2 (4) columns to 2 rows and 3 (6) columns could create more space.
Lastly: I don't understand what the planet designation is supposed to do and mean exactly (but this can be a purely me problem).But that's complaining at a high level. As has already been mentioned, the prompts are fun and capture the theme very well. So it's a good game.