Generated CSS files from layouts are named after pages instead of layouts

[pippaine]

Astro Info

Astro                    v5.2.3
Node                     v22.11.0
System                   Linux (x64)
Package Manager          pnpm
Output                   static
Adapter                  none
Integrations             none

If this issue only occurs in one browser, which browser is a problem?

No response

Describe the Bug

Upon running pnpm run build && pnpm run preview and accessing http://localhost:4321/, two network requests are made:

• http://localhost:4321/_astro/index.jXlbHC1O.css containing index page styles
• http://localhost:4321/_astro/privacy-policy.DGMEhcaH.css containing Base.astro styles

The Base.astro styles are incorrectly labelled as "privacy-policy" in the filename.

What's the expected result?

The styles from Base.astro should be in a CSS file named appropriately for Base.astro.

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-6fswqclf

Participation

• I am willing to submit a pull request for this issue.