full change ui and small fixes

package.json

@@ -13,6 +13,7 @@
     "@tabler/icons-react": "^3.26.0",
     "@types/bcrypt": "^5.0.2",
     "@types/bcryptjs": "^2.4.6",
+    "@types/classnames": "^2.3.0",
     "@types/jsonwebtoken": "^9.0.7",
     "@types/lodash": "^4.17.13",
     "@types/styled-components": "^5.1.34",
@@ -20,6 +21,7 @@
     "axios": "^1.7.9",
     "bcrypt": "^5.1.1",
     "bcryptjs": "^2.4.3",
+    "classnames": "^2.5.1",
     "framer-motion": "^11.15.0",
     "jsonwebtoken": "^9.0.2",
     "lodash": "^4.17.21",
@@ -27,13 +29,15 @@
     "mongodb": "^6.12.0",
     "mongoose": "^8.9.2",
     "next": "15.1.2",
+    "next-themes": "^0.4.6",
     "nodemailer": "^6.9.16",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "react-hot-toast": "^2.4.1",
     "react-redux": "^9.2.0",
     "resend": "^4.0.1",
-    "styled-components": "^6.1.13"
+    "styled-components": "^6.1.13",
+    "tailwind": "^4.0.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",