Ouch! Not good ;-{
This sounds like the logic board its self has an issue. Either the backlight power which lights up the screen or the graphics services of the M1 SoC.
When you try to turn it on do you see any light glow from the screen (try this is a dark room) Sometimes you can see the screen with change in color slightly grey to black. If you don't then the backlight power logic is a likely suspect.
See if placing a lit flashlight ageists the screen as an angle if you see the faint outline of the desktop icons, if not, then the graphics has a problem.
In either case your system might be covered under warranty. I would visit an Apple Store to see what they say.