---

import tkinter as tk
from tkinter import messagebox

def plus():
    count.set(count.get() + 1)

def minus():
    if count.get() == 0:
        messagebox.showinfo("Подсказка", "Счётчик не может быть меньше нуля")
    else:
        count.set(count.get() - 1)

def reset():
    count.set(0)

root = tk.Tk()
root.title("Счётчик")
root.geometry("300x200")

count = tk.IntVar(value=0)

label = tk.Label(root, textvariable=count, font=("Arial", 30))
label.pack(pady=20)

tk.Button(root, text="+1", command=plus, width=6).pack(side="left", padx=20)
tk.Button(root, text="-1", command=minus, width=6).pack(side="left", padx=20)
tk.Button(root, text="Сброс", command=reset, width=6).pack(side="left", padx=20)

root.mainloop()