Add landing page with shadcn/ui and dark mode

package.json

@@ -9,9 +9,15 @@
     "lint": "eslint"
   },
   "dependencies": {
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "lucide-react": "^0.575.0",
     "next": "16.1.6",
+    "next-themes": "^0.4.6",
+    "radix-ui": "^1.4.3",
     "react": "19.2.3",
-    "react-dom": "19.2.3"
+    "react-dom": "19.2.3",
+    "tailwind-merge": "^3.5.0"
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
@@ -20,7 +26,9 @@
     "@types/react-dom": "^19",
     "eslint": "^9",
     "eslint-config-next": "16.1.6",
+    "shadcn": "^3.8.5",
     "tailwindcss": "^4",
+    "tw-animate-css": "^1.4.0",
     "typescript": "^5"
   },
   "ignoreScripts": [