ive made the project with create next app so ive the config

what does you configs look like? Tailwind config, postcss config?

this is the tailwind config

import type { Config } from 'tailwindcss'

const config: Config = {
  content: [
    './src/pages/**/*.{js,ts,jsx,tsx,mdx}',
    './src/components/**/*.{js,ts,jsx,tsx,mdx}',
    './src/app/**/*.{js,ts,jsx,tsx,mdx}',
  ],
  theme: {
    extend: {
      backgroundImage: {
        'gradient-radial': 'radial-gradient(var(--tw-gradient-stops))',
        'gradient-conic':
          'conic-gradient(from 180deg at 50% 50%, var(--tw-gradient-stops))',
      },
    },
  },
  plugins: [],
}
export default config

and postcss is htis

(didnt edit anything - justz the generated ones)

hmm those look ok. does your pages and components live in src? What does your app directory structure look like?

yeah, everything in app. paths look correct. How strange

indeed, i already ussed tailwind in some of my other projects and it worked there before

yeah... what happens if you try to use a provided default class instead of an aributary one. Like bg-gray-200 or soemthing?

nothing - still white background