This PR migrates the JS config for Tailwind into a CSS config. As such,
all variables have been defined as CSS variables and they're using the
specialized Tailwind syntax for generating utility classes.
Beside the migration, these changes were also added:
- Added `tailwind.config.css` to few packages to make the Tailwind
Intellisense work.
- Migrated away from Radix style color classes to our defined classes,
the values will remain the same.
- Most of the CSS is generated by scripts, they'll be removed in next
PRs.
* Removed redundant `border-light` classes from several components since
it was undefined.
* Removed redundant `text-strong` classes from several components since
it was undefined.
How to test:
- Open all apps, compare the UI (mainly colors) to builds from #45417
and try to find a difference.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Style**
* Harmonized color variable usages and updated UI color references
(affects palettes, charts, gradients, hero illustrations, and
scrollbars).
* Tweaked border, tab, and selection visuals across components.
* **New Features**
* Added a suite of theme animations and refined typography presets used
by site prose and docs.
* **Refactor**
* Overhauled Tailwind/theme configuration and color token generation for
more consistent theming.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
This PR migrates all tailwind configs in the apps to be CSS configs.
They import a shared CSS Tailwind config from the `config` package
(which in turns imports the old JS config).
The shared JS config will be migrated to CSS in a followup PR.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Chores**
* Centralized Tailwind into a config-driven entrypoint and updated the
app build flow to use the new build step; many apps now import unified
global styles.
* **Style**
* Migrated global styles to a Tailwind v4-style setup, added
project-wide content scanning, consolidated theme imports, standardized
theme tokens (including new --container-site max-width), and added a
small prose utility to remove paragraph margins.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Ivan Vasilov