bug: daisyui always emits variables to `@layer base`

[Freymaurer]

Reproduction URL (Required)

https://play.tailwindcss.com/z19vEIqURl?file=css

What version of daisyUI are you using?

v5.0.40

Which browsers are you seeing the problem on?

All browsers

Describe your issue

I am working on a component library using tailwind 4 and daisyui 5. This created issues with the produced css if it is referenced in a project using tailwind 3, with the following error: @layer base is used but no matching @tailwind base directive is present.

As the library is intented to work just from the css file without any tailwind requirements i looked for a workaorund and found the following solution: tailwindlabs/tailwindcss#18123 (reply in thread)

I renamed all layers but still had @layer base in the generated css. This was due to daisyui using the layer to add variables. The referenced tailwind play link reproduces this issue.

Maybe it is possible to add a config option for this case?

Thanks in advance, let me know if i can somehow help to speed up the fix for this, as it is currently a major blocker.

[github-actions]

Thank you @Freymaurer for reporting issues. It helps daisyUI a lot 💚
I'll be working on issues one by one. I will help with this one as soon as a I find a solution.
In the meantime providing more details and reproduction links would be helpful.

[saadeghi]

I understand.
Unfortunately, it's not possible yet to use another layer name due to Tailwind CSS plugin API.
Tailwind CSS provides APIs like addBase, addComponents, addUtilities
addBase always adds styles to Tailwind's predefined @layer base and addComponents, addUtilities always add styles to Tailwind's predefined @layer utilities.

If Tailwind provides more access regarding this behavior, we may be able to provide an option as well.