…@apply` (#10943)

* Don’t move `::ng-deep` pseudo element

* Update changelog

* Don’t move `::deep` pseudo element to end of selector when using `@apply`

* Update changelog

* Move pseudo-elements in two passes

* Rewrite pseudo-element relocation logic

* Update test

`::test` is an unknown pseudo element and therefore may be actionable _and_ nestable

* Add tests

* Simplify tests

* Simplify

* run tests on CI multiple times

This works around the timeouts/flakeyness of GitHub Actions

* Update formatting

* Add comment

* Mark webkit peusdo elements as terminal

* update comment

* only execute the `global-setup` once

* Simplify

NO SORT FN YAY

* Use typedefs

* Update changelog

* Update changelog

* update again

---------

Co-authored-by: Robin Malfait <malfait.robin@gmail.com>

…11002)

* fixed gradient stop for default transparent

* Inherit gradient stop positions when using variants

* Update tests

* Update changelog

---------

Co-authored-by: Jordan Pittman <jordan@cryptica.me>

…ks in the stable engine (#10988)

* replace `env.OXIDE` with global `__OXIDE__`

This will allow us to replace the `__OXIDE__` at build time, and fully
remove the branches from the final code so that there is not even any
reference to `@tailwindcss/oxide` on the stable engine.

* update changelog

* use `env.ENGINE` in integration tests

* drop oxide branching for the PostCSS plugin for now

This is currently a redirect to the same file, so doesn't hurt.

* Enable better dead-code elimination

* Update CLI tests

Fix indentation

* Fix indentation

---------

Co-authored-by: Jordan Pittman <jordan@cryptica.me>

…bitrary properties work (#11039)

* ensure that last `]` doesn't stop the match

Given this input:
```html
<div class="[width:_calc(theme(spacing[5])_+_theme(spacing[5]))]"></div>
```

Then we would expect the match to be this:
```
[width:_calc(theme(spacing[5])_+_theme(spacing[5]))]
```

However, with the `?`, then it would stop and result in:
```
[width:_calc(theme(spacing[5])_+_theme(spacing[5]
```

Which makes it incomplete because the `))]` are missing at the end.

* update changelog

* ensure we normalize the arbitrary modifiers

This applies the same rules as arbitrary values. The `_` can be used in
place of a space. If you _do_ want an underscore, you can escape it with
`\_` (`\\_` in JavaScript).

* update changelog

* bump `postcss-load-config` in the oxide engine

* bump `postcss-load-config` in the stable engine

* update changelog

* Switch to stable

* Update Node to v14

* Update to latest dependency versions

* Update test helper for new version of `rimraf`

Co-Authored-By: Jordan Pittman <jordan@cryptica.me>

* Downgrade `lightningcss` to `v1.18.0`

Co-Authored-By: Jordan Pittman <jordan@cryptica.me>

* Switch back to oxide

* Update Github actions from Node 12 to Node 14

* Update oxide dependencies

* Update stable dependencies

* Update `content-resolution` integration test dependencies

* Update `postcss-cli` integration test dependencies

* Update `rollup` integration test dependencies

* Update `rollup-sass` integration test dependencies

* Update `vite` integration test dependencies

* Update `webpack-5` integration test dependencies

* Update changelog

* Remove `color-name` dependency

* Replace `quick-lru` dependency with `@alloc/quick-lru`

* Replace `quick-lru` dependency with `@alloc/quick-lru` in stable

* Fix standalone CLI test

---------

Co-authored-by: Jonathan Reinink <jonathan@reinink.ca>
Co-authored-by: Jordan Pittman <jordan@cryptica.me>

This reverts commit 0e539a7.