SimpleApp

import tkinter as tk

class App(tk.Tk):
    def __init__(self):
        super().__init__()
        self.title("Prosty Tkinter")
        self.geometry("300x150")
        self.resizable(False, False)
        self.configure(bg="#f0f0f0")

        self._click_count = 0

        self.label = tk.Label(
            self,
            text="Witaj w Tkinter!",
            font=("Arial", 12),
            bg="#f0f0f0",
            fg="#333333",
        )
        self.label.pack(pady=15)

        self.button = tk.Button(
            self,
            text="Kliknij mnie",
            command=self._on_click,
            width=15,
            bg="#4a90d9",
            fg="white",
            activebackground="#357abd",
            relief="flat",
            cursor="hand2",
        )
        self.button.pack(pady=10)

    def _on_click(self) -> None:
        self._click_count += 1
        self.label.config(
            text=f"Kliknięto przycisk! ({self._click_count}×)"
        )


if __name__ == "__main__":
    app = App()
    app.mainloop()