Repository: ui
Issue: [bug]: Build Error With Tailwind CSS Prefix `The 'border-border' class does not exist.`
Labels: bug

### Describe the bug

When working with a Next.js project using Tailwind CSS with a Prefix such as `tw-`, the project got Build Error below. It seem like there was a [PR 770](https://github.com/shadcn-ui/ui/pull/770) trying to fix this issue, but I am getting this error on a project I am working on, as well as from a newly created project for testing.

I read [someone noted on the PR](https://github.com/shadcn-ui/ui/pull/770#pullrequestreview-1506748574) that classes applied in the CSS is missing the prefix, and [someone updated stating fix was added to latest commit](https://github.com/shadcn-ui/ui/pull/770#issuecomment-1614471624), but I am still encountering this issue.

```
Error evaluating Node.js code
CssSyntaxError: /Users/yk/Desktop/Project/Repository/YK/T/napp/app/globals.css:1:1: The `border-border` class does not exist. If `border-border` is a custom class, make sure it is defined within a `@layer` directive.
```

<img width="971" alt="image" src="https://github.com/user-attachments/assets/432d5f59-79af-4452-b5ae-ecbf19898a0c" />


### Affected component/components

All

### How to reproduce

1. Create a Next.js application using `npx create-next-app@latest`
2. Navigate to the new application directory, update the project with `npx shadcn@latest init -d`
3. Update `tailwind.config.ts` with `prefix: "tw-",` under `export default` configuration
4. Update `components.json` configuration with `"prefix": "tw-"`

> Note: I tried with updating `tailwind.config.ts` first then running `npx shadcn@latest init -d`, but same result.

### Codesandbox/StackBlitz link

https://stackblitz.com/edit/stackblitz-starters-g75bc5hq?file=tailwind.config.ts,components.json

### Logs

```bash
Error evaluating Node.js code
CssSyntaxError: /Users/yk/Desktop/Project/Repository/YK/T/napp/app/globals.css:1:1: The `border-border` class does not exist. If `border-border` is a custom class, make sure it is defined within a `@layer` directive.
    [at Input.error (turbopack://[project]/node_modules/postcss/lib/input.js:106:16)]
    [at AtRule.error (turbopack://[project]/node_modules/postcss/lib/node.js:145:32)]
    [at processApply (/Users/yk/Desktop/Project/Repository/YK/T/napp/node_modules/tailwindcss/lib/lib/expandApplyAtRules.js:380:29)]
    [at /Users/yk/Desktop/Project/Repository/YK/T/napp/node_modules/tailwindcss/lib/lib/expandApplyAtRules.js:551:9]
    [at /Users/yk/Desktop/Project/Repository/YK/T/napp/node_modules/tailwindcss/lib/processTailwindFeatures.js:55:50]
    [at async plugins (/Users/yk/Desktop/Project/Repository/YK/T/napp/node_modules/tailwindcss/lib/plugin.js:38:17)]
    [at async LazyResult.runAsync (turbopack://[project]/node_modules/postcss/lib/lazy-result.js:261:11)]
    [at async transform (turbopack://[project]/postcss.config.mjs/transform.ts:79:34)]
    [at async run (turbopack://[turbopack-node]/ipc/evaluate.ts:92:23)]
```


### System Info

```bash
System:
- macOS Sequoia 15.2 (24C101)
```


### Before submitting

- [X] I've made research efforts and searched the documentation
- [X] I've searched for existing issues