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main.py

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+import sys
+import os
+from PyQt6.QtWidgets import QApplication
+from src.gui.main_window import MainWindow
+from src.gui.styles import apply_styles
+
+def main():
+    # Check for root privileges
+    if os.geteuid() != 0:
+        print("This application requires root privileges to manage network interfaces.")
+        print("Please run with sudo.")
+        # In a real GUI app we might want to show a dialog before exiting, 
+        # but for now we'll just print to stdout.
+        # We can also attempt to restart with sudo, but that's complex for now.
+        sys.exit(1)
+
+    app = QApplication(sys.argv)
+    
+    # Apply premium styles
+    apply_styles(app)
+    
+    window = MainWindow()
+    window.show()
+    
+    sys.exit(app.exec())
+
+if __name__ == "__main__":
+    main()