first site, and add navbar

package.json

@@ -28,7 +28,10 @@
     "@angular/forms": "^20.3.0",
     "@angular/platform-browser": "^20.3.0",
     "@angular/router": "^20.3.0",
+    "@tailwindcss/postcss": "^4.1.17",
+    "postcss": "^8.5.6",
     "rxjs": "~7.8.0",
+    "tailwindcss": "^4.1.17",
     "tslib": "^2.3.0",
     "zone.js": "~0.15.0"
   },
@@ -45,4 +48,4 @@
     "karma-jasmine-html-reporter": "~2.1.0",
     "typescript": "~5.9.2"
   }
-}
+}