feat: Migrate to Tailwind CSS v4

package.json

@@ -12,13 +12,14 @@
     "colorthief": "^2.4.0",
     "tinycolor2": "^1.6.0",
     "vue": "^3.3.4",
-    "vue-router": "^4.2.5"
+    "vue-router": "^5.0.2"
   },
   "devDependencies": {
-    "@vitejs/plugin-vue": "^4.2.3",
+    "@tailwindcss/vite": "^4.1.18",
+    "@vitejs/plugin-vue": "^6.0.4",
     "autoprefixer": "^10.4.16",
     "postcss": "^8.4.31",
-    "tailwindcss": "^3.3.3",
-    "vite": "^4.4.5"
+    "tailwindcss": "^4.1.18",
+    "vite": "^7.3.1"
   }
 }

postcss.config.js

@@ -1,6 +0,0 @@
-export default {
-  plugins: {
-    tailwindcss: {},
-    autoprefixer: {},
-  },
-}

src/style.css

@@ -1,3 +1 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
+@import "tailwindcss";

tailwind.config.js

@@ -1,12 +0,0 @@
-/** @type {import('tailwindcss').Config} */
-export default {
-  content: [
-    "./index.html",
-    "./src/**/*.{vue,js,ts,jsx,tsx}",
-  ],
-  theme: {
-    extend: {},
-  },
-  plugins: [],
-}
-

vite.config.js

@@ -1,9 +1,13 @@
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
+import tailwindcss from '@tailwindcss/vite'
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [vue()],
+  plugins: [
+    vue(),
+    tailwindcss(),
+  ],
   server: {
     watch: {
       usePolling: true,