variants not working with prefix \ how to do dark mode with prefix

[alex-buena]

What version of Tailwind CSS are you using?

v4.1.13

What build tool (or framework if it abstracts the build tool) are you using?

"vite": "^7.1.7"

What version of Node.js are you using?

bun 1.2.22

What browser are you using?

Chrome

What operating system are you using?

macOS

Reproduction URL

https://play.tailwindcss.com/hdK4SMZs1n?file=css

Describe your issue

Tailwind does not prefix the variables in the @variant section. This i needed to do dark mode with variants like its described in the docs.
Is there another way to better handel darkmode?

I cam up with this - but this forces you to have everything basically three times in there.
https://play.tailwindcss.com/AMDMuSVO4x?file=css
This works but seems hacky:
https://play.tailwindcss.com/dGOuUYA7av?file=css

Maybe i completely miss understood / miss use something smth.
But i think it would be cool to be able too prefix all variables that are use. Even the ones in darkmode. I would argue that darkmode should be a requirement in todays time and age and we need a clean way