Update postcss-custom-media and postcss-nesting

[chaance]

This updates both postcss-custom-media and postcss-nesting plugins. Updating postcss-custom-media does not affect the build output, while postcss-nesting uses an updated spec for nesting and yields slightly different results:

/* root theme selector structure changed */
- :root:where(:has(.radix-themes[data-is-root-theme='true']:where(.light, .light-theme)))
+ :root:where(:has([data-is-root-theme='true']:is(.radix-themes:where(.light, .light-theme))))

/* pseudo-element selectors changed */
- :where(.rt-CheckboxCardsRoot.rt-variant-surface) .rt-CheckboxCardsItem::before
+ :is(:where(.rt-CheckboxCardsRoot.rt-variant-surface) .rt-CheckboxCardsItem)::before

- .rt-ProgressRoot:where(.rt-variant-soft) :where(.rt-ProgressIndicator)::after
+ :is(.rt-ProgressRoot:where(.rt-variant-soft) :where(.rt-ProgressIndicator))::after

These changes do not appear to impact the actual styling in my testing.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
themes-playground	Ready	Preview, Comment	Feb 3, 2026 1:33am