What version of Tailwind CSS are you using? v4.1.17

What build tool (or framework if it abstracts the build tool) are you using? @tailwindcss/vite v4.1.17, Svelte 5.45.6, Vite 7.2.6

What version of Node.js are you using? v20.19.4

What browser are you using? Edge, Chrome

What operating system are you using? Windows

Reproduction URL https://github.com/[SLAN14/Test](https://github.com/SLAN14/Test)

Until TailwindCSS v3, carbon components svelte was seamlessly working with tailwind. But after I migrate to v4, the same code is not compatible anymore and either of the CSS are lost with every permutations.

The piece of code with issue:

	import './layout.css';
	import "carbon-components-svelte/css/white.css";

Post debugging a bit, I could finally narrow down the problem. The issue is when I apply the carbon styles, tailwind's directives are wiped out and to have persistent tailwind styles, I need to force important flag on tailwind config (which is not ideal).

A solution over here would be helpful. Thanks!