how do I make my pop up warning better (look at my site first)

[cult_status18]

I have a confession to make I used a Google AI overview to make my waring I didn't want to do it that way but it happened so it is what it is Luckly its sucks so that means I actually need to work to improve it currently its just a pop up that uses Java and Im not familiar with java at all rn so I'm going to need a bit of help to make its better really I just need it to pause my site until the buttons clicked and I need it to be able to allow my autoplay audio to play on its own regardless of the browser and permissions, in other words, I need my audio to be attached to my warning so that when someone presses the button it plays the audio when it comes to the design of it it's not a problem I happen to be somewhat talented when it comes to that so I just need to know how to implement the textures that I want to use I know I sound like I'm not worth the time but java is really intimidating and I just to fix this waring to be better please help

also here's a link I guess https://cult-master-status.neocities.org/