chore(misc): migrate tailwind v3 to v4

[jaysoo]

Current Behavior

graph apps and nx-dev pin tailwindcss 3.4.4 with JS configs and v3 directives.

Expected Behavior

tailwindcss 4.1.11 via @tailwindcss/postcss. JS configs replaced with CSS-based @import 'tailwindcss', @plugin, @source, @custom-variant. astro-docs already on v4.

v3 utility renames applied across graph + nx-dev sources (per the Tailwind v4 upgrade guide) so visuals don't shift:

• shadow-sm -> shadow-xs, shadow -> shadow-sm
• drop-shadow-sm -> drop-shadow-xs, drop-shadow -> drop-shadow-sm
• rounded-sm -> rounded-xs, rounded -> rounded-sm
• blur-sm -> blur-xs, blur -> blur-sm
• backdrop-blur-sm -> backdrop-blur-xs, backdrop-blur -> backdrop-blur-sm

v3 default border-color (gray-200) preserved via @layer base compat shim per the upgrade guide's default border color note, since explicit border-color isn't always paired in existing markup.

AI Chat (not used publicly but still works):

Graph UI:

Graph (Storybook):

Related Issue(s)

NXC-4430

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☁️ Nx Cloud last updated this comment at 2026-05-08 19:46:02 UTC

[socket-security]

All alerts resolved. Learn more about Socket for GitHub.

This PR previously contained dependency changes with security issues that have been resolved, removed, or ignored.

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