diff --git a/src/main/java/workshop/Controller.java b/src/main/java/workshop/Controller.java
index 070b56f..470ad2b 100644
--- a/src/main/java/workshop/Controller.java
+++ b/src/main/java/workshop/Controller.java
@@ -3,10 +3,13 @@ package workshop;
 import javafx.fxml.FXML;
 import javafx.scene.control.Label;
 import javafx.scene.control.Button;
+import javafx.scene.control.Alert;
+import javafx.scene.layout.VBox;
 
 public class Controller {
     @FXML private Label titleLabel;
     @FXML private Button themeToggle;
+    @FXML private VBox root;
 
     private boolean isDark = true;
 
@@ -17,25 +20,48 @@ public class Controller {
     @FXML
     private void buyBasic() {
         // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+        showAlert("You entered payment gateway for BASIC plan.");
     }
 
     @FXML
     private void buyPro() {
         // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+        showAlert("You entered payment gateway for PRO plan");
     }
 
     @FXML
     private void buyEnterprise() {
         // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+        showAlert("You entered payment gateway for ENTERPRISE plan .");
     }
 
     @FXML
     private void toggleTheme() {
         // TODO: Toggle the isDark flag. If dark, switch to style.css and set button text to "Switch to Light Mode"
         // TODO: If light, switch to light.css and set button text to "Switch to Dark Mode"
-    }
+            if (isDark) {
+                themeToggle.getScene().getStylesheets().clear();
+                themeToggle.getScene().getStylesheets().add(
+                        getClass().getResource("/workshop/light.css").toExternalForm()
+                );
+                themeToggle.setText("Switch to Dark Mode");
+            } else {
+                themeToggle.getScene().getStylesheets().clear();
+                themeToggle.getScene().getStylesheets().add(
+                        getClass().getResource("/workshop/style.css").toExternalForm()
+                );
+                themeToggle.setText("Switch to Light Mode");
+            }
+            isDark = !isDark;
+        }
+
 
     private void showAlert(String message) {
         // TODO: Create a new Alert of type INFORMATION with the given message and display it
+        Alert alert = new Alert(Alert.AlertType.INFORMATION);
+        alert.setTitle("Payment");
+        alert.setHeaderText(null);
+        alert.setContentText(message);
+        alert.showAndWait();
     }
 }
diff --git a/src/main/java/workshop/Launcher.java b/src/main/java/workshop/Launcher.java
index 0f82aeb..a5041ea 100644
--- a/src/main/java/workshop/Launcher.java
+++ b/src/main/java/workshop/Launcher.java
@@ -5,5 +5,6 @@ import javafx.application.Application;
 public class Launcher {
     public static void main(String[] args) {
         // TODO: Launch the JavaFX application by calling Application.launch(Main.class)
+   Application.launch(Main.class, args);
     }
 }
diff --git a/src/main/java/workshop/Main.java b/src/main/java/workshop/Main.java
index d6cd3fd..5cef486 100644
--- a/src/main/java/workshop/Main.java
+++ b/src/main/java/workshop/Main.java
@@ -2,12 +2,27 @@ package workshop;
 
 import javafx.application.Application;
 import javafx.stage.Stage;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
 
 public class Main extends Application {
     @Override
     public void start(Stage stage) throws Exception {
         // TODO: Load the FXML file using FXMLLoader.load() and get the Parent root
+        Parent root = FXMLLoader.load(
+                getClass().getResource("/workshop/pricing.fxml")
+        );
+
         // TODO: Create a Scene with the root (width=750, height=450) and add the stylesheet "style.css"
+        Scene scene = new Scene(root, 750, 450);
+
+        scene.getStylesheets().add(
+                getClass().getResource("/workshop/style.css").toExternalForm()
+        );
         // TODO: Set the stage title to "Pricing Plans", set the scene, and call stage.show()
+        stage.setTitle("Pricing Plans");
+        stage.setScene(scene);
+        stage.show();
     }
 }