Suggestion: @style directive similar to scoped CSS files
In Blazor we have the ability to create scoped CSS files by ending the file in .razor.css.
For example a component named MyComponent.razor can have a isolated CSS file MyComponent.razor.css.
More details here.
This feature fits nicely when one creates components with a code-behind file (e.g. MyComponent.razor.cs).
But it feels odd when using the @code directive, so everything is grouped in a single file.
Therefore, I suggest a complementary @style directive which in essence behaves in the same way the isolated CSS files do. Meaning the code within should be bundled the same way and also respect DisableScopedCssBundling and ScopedCssEnabled project settings.
I have not looked into the inner workings of Razor and do not know how the compilation and bundling works in detail. However a naive solution could be to just emit the CSS in the @style directive as scoped files and then just use the existing bundling logic.