Tailwind classes not compiling in prod

[absowoot]

Environment

• Elixir version (elixir -v): 1.17.3
• Phoenix version (mix deps): 1.7.11
• Phoenix LiveView version (mix deps): ~> 1.0
• Beacon version (mix deps): 0.3
• Operating system: Mac OS
• Browsers on which you attempted to reproduce this bug (the more the merrier): Chrome, Safari

Actual behavior

Beacon config includes tailwind_css and tailwind_config to pull in app.css and beacon.tailwind.config.bundle.js exactly as shown in the guides.

In production environment, app-based live_component's CSS is not compiled (ie it's missing in the stylesheet) when viewing a page created in Beacon. For example, my live component includes the class px-3 but it is not being defined in the page's stylesheet.

In dev environment, classes are defined as expected.