@source directive not working with pnpm

[adityaa72]

What version of Tailwind CSS are you using?

v4.0.1

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

Next.js v15.1.6

What version of Node.js are you using?

v20.0.0

What browser are you using?

Firefox

What operating system are you using?

macOS

Reproduction URL

Tailwind 4 with pnpm
Tailwind 4 with yarn

Describe your issue

@source directive not working for node_modules packages with pnpm and nextjs. The same code is working with nextjs and yarn, and nextjs and npm, also same package works with pnpm with vite with @tailwindcss/vite

@import "tailwindcss";
@import "@jamsr-ui/theme/styles.css";

/* This is not working */
@source "../node_modules/@jamsr-ui";

/* These are working */
/* @source "../node_modules/@jamsr-ui/text"; */
/* @source "../node_modules/@jamsr-ui/button"; */
/* @source "../node_modules/@jamsr-ui/utils"; */
/* @source "../node_modules"; */

Here @source "../node_modules/@jamsr-ui"; is not working but nested @source are working as like @source "../node_modules/@jamsr-ui/text";.
Even @source "../node_modules" is working

[coadinglife]

Yaa, how to fix??