all requierd methods implemented

src/main/java/workshop/Controller.java

@@ -1,6 +1,7 @@
 package workshop;
 
 import javafx.fxml.FXML;
+import javafx.scene.control.Alert;
 import javafx.scene.control.Label;
 import javafx.scene.control.Button;
 
@@ -17,25 +18,43 @@ public class Controller {
     @FXML
     private void buyBasic() {
         // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+        showAlert("Basic Plan Selected.");
     }
 
     @FXML
     private void buyPro() {
         // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+        showAlert("Pro Plan Selected.");
     }
 
     @FXML
     private void buyEnterprise() {
         // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+        showAlert("Enterprise Plan Selected.");
     }
 
     @FXML
     private void toggleTheme() {
         // TODO: Toggle the isDark flag. If dark, switch to style.css and set button text to "Switch to Light Mode"
+
+        isDark = !isDark;
+
+        themeToggle.getScene().getStylesheets().clear();
+        if (isDark) {
+            themeToggle.getScene().getStylesheets().add(getClass().getResource("light.css").toExternalForm());
+            themeToggle.setText("Switch to Dark Mode");
+        }
         // TODO: If light, switch to light.css and set button text to "Switch to Dark Mode"
+        else {
+            themeToggle.getScene().getStylesheets().add(getClass().getResource("style.css").toExternalForm());
+            themeToggle.setText("Switch to Light Mode");
+        }
     }
 
     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.setHeaderText(message);
+        alert.show();
     }
 }

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);
     }
 }

src/main/java/workshop/Main.java

@@ -1,13 +1,24 @@
 package workshop;
 
 import javafx.application.Application;
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.scene.layout.VBox;
 import javafx.stage.Stage;
 
 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
+        FXMLLoader fxmlLoader = new FXMLLoader (getClass().getResource("pricing.fxml"));
         // TODO: Create a Scene with the root (width=750, height=450) and add the stylesheet "style.css"
+        Scene scene = new Scene(fxmlLoader.load(), 750, 450);
+        scene.getStylesheets().add(getClass().getResource("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();
     }
 }

src/main/resources/workshop/pricing.fxml

@@ -7,7 +7,7 @@
 <?import javafx.scene.layout.VBox?>
 
 <VBox spacing="20" alignment="CENTER" xmlns:fx="http://javafx.com/fxml" fx:controller="workshop.Controller">
-    <padding><Insets top="30" right="30" left="30" bottom="20"/></padding>
+    <padding><Insets top="30" right="30" left="30" bottom="30"/></padding>
 
     <HBox spacing="10" alignment="CENTER">
         <Label fx:id="titleLabel" text="Choose Your Plan" styleClass="title" />