Add scss

svelte.config.js

@@ -1,11 +1,13 @@
 import adapter from '@sveltejs/adapter-auto';
-import { vitePreprocess } from '@sveltejs/kit/vite';
+import preprocess from 'svelte-preprocess';
 
 /** @type {import('@sveltejs/kit').Config} */
 const config = {
-	// Consult https://kit.svelte.dev/docs/integrations#preprocessors
-	// for more information about preprocessors
-	preprocess: vitePreprocess(),
+	preprocess: preprocess({
+		scss: {
+			prependData: `@use './src/variables' as *;`
+		}
+	}),
 
 	kit: {
 		// adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.