Fancy concept! I managed to beat NPC twice :-)
Result is revealed in steps, like you have two wins and two losses and that last one moment before revelation... Enjoyed that :D
I really loved how synthwaveish the music was, along with all those neon colors of UI. It feels ambient and stylish. Very pleasant to eyes, well done!
As for controls, first I was trying to click the element, but it came to me I had to drag it to a slot. Would be nice to have a shortcut - if you click on element, it fills empty slot left to right.
To sum up, this is awesome. Keep up!