svelte.config.js

import preprocess from 'svelte-preprocess';
import adapter from '@sveltejs/adapter-static';

export default {
	kit: {
		adapter: adapter({
			pages: 'build',
			assets: 'build',
			fallback: 'index.html', // Use index.html as a fallback
			precompress: false,
			strict: true
		})
	},

	preprocess: [
		preprocess({
			postcss: true
		})
	]
};