from tkinter import *

root = Tk()
root.geometry("500x400")
root.resizable(0, 0)
root.config(bg="#103030")
root.title("Classificar pH")
titulo = Label(text="Classificar pH",
               font=("Arial", 28, "bold"),
               bg="#103030", fg="#49e3e3")
titulo.place(relx=0.25, rely=0.05)
texto_sub1 = Label(text="Valor do pH (0 a 14) :",
                   font=("Arial", 18, "bold"),
                   bg="#103030", fg="#49e3e3")
texto_sub1.place(relx=0.05, rely=0.3)
pH = StringVar()
pH_entrada = Entry(textvariable=pH,
                   font=("Arial", 12, "bold"),
                   bg="white", fg="blue", justify='center')
pH_entrada.place(relx=0.55, rely=0.31, relwidth=0.35)
def limpar():
    pH_entrada.delete(0, END)
    resultado_texto.config(text="", bg="#cfe2f3")

def app():
    try:
        valor_ph = float(pH.get())
        if valor_ph < 0 or valor_ph > 14:
            resultado_texto.config(text="Valor de pH inválido. Deve estar entre 0 a 14",
                                   bg="#FF00FF", fg="white")
        elif valor_ph < 7:
            resultado_texto.config(text="Ácido", bg="red", fg="white")
        elif valor_ph == 7:
            resultado_texto.config(text="Neutro", bg="yellow", fg="black")
        else:
            resultado_texto.config(text="Básico (ou Alcalino)", bg="green", fg="white")
    except ValueError:
        resultado_texto.config(text="Valor digitado inválido\nDigite 0 a 14",
                               bg="#FF00FF", fg="white")

but1 = Button(text="Classificar", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.1, rely=0.5, relwidth=0.25, relheight=0.1)

but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.4, rely=0.5, relwidth=0.25, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                  font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.7, rely=0.5, relwidth=0.25, relheight=0.1)

resultado_texto = Label(text="",
                        font=("Arial", 12, "bold"),
                        bg="#cfe2f3")
resultado_texto.place(relx=0.05, rely=0.7, relwidth=0.9, relheight=0.2)
root.mainloop()