[bug]: Components dont show the right way

[CharlesLightjarvis]

Describe the bug

i the team i tried to install react 19 tsx with taiwind v4 using canary and i follow all the steps in the documentation... but here is the result when i add a button

additionnaly got some warning in the index.css

with theme , custom-variant, and plugin

Affected component/components

all components

How to reproduce

i follow the shadcn guide

Codesandbox/StackBlitz link

No response

Logs

System Info

browsers

Before submitting

• I've made research efforts and searched the documentation
• I've searched for existing issues

[peavers]

Facing the same issue with a clean setup of React 19, tailwind v4.