from tkinter import *

root = Tk()
root.geometry("400x500")
root.resizable(0, 0)
root.title("Cálculo de combustível")
root.config(bg="#d9ead3")
def app():
    p = preco.get()
    d = distancia.get()
    l_cem = l_aos_cem.get()
    consumo = (d*l_cem)/100
    a = consumo*p
    aarr = round(a,2)
    resultado_consumo.set(consumo), resultado_preco.set(aarr)

def limpar():
    distancia_entrada.delete(0, END)
    preco_entrada.delete(0, END)
    l_aos_cem_entrada.delete(0, END)
titulo = Label(text="Cálculo de Combustível",
               font=("Arial", "18", "bold"),bg="#d9ead3",fg="#bf9000")
titulo.place(relx=0.18, rely=0.05)
texto_sub1  = Label(text="Insira a distância:",
                    font=("Arial", "13", "bold"),bg="#d9ead3",fg="#bf9000")
texto_sub1.place(relx=0.2, rely=0.2)
texto_sub2 = Label(text="Insira o consumo médio\n do veículo (l/100):",
                    font=("Arial", "13", "bold"),bg="#d9ead3",fg="#bf9000")
texto_sub2.place(relx=0.05, rely=0.3)

texto_sub3 = Label(text="Insira o preço da\n gasolina ou diesel:",
                    font=("Arial", "13", "bold"),bg="#d9ead3",fg="#bf9000")
texto_sub3.place(relx=0.15, rely=0.45)
distancia = DoubleVar()
distancia_entrada = Entry(textvariable=distancia,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
distancia_entrada.place(relx=0.6, rely=0.2, relwidth=0.25)

l_aos_cem = DoubleVar()
l_aos_cem_entrada = Entry(textvariable=l_aos_cem,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
l_aos_cem_entrada.place(relx=0.6, rely=0.3, relwidth=0.25)
preco = DoubleVar()
preco_entrada = Entry(textvariable=preco,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
preco_entrada.place(relx=0.6, rely=0.45, relwidth=0.25)
but1 = Button(text="Calculadora", bd=2, bg='#107db2', fg='white',
              font=('verdana', 10, 'bold'), command=app)
but1.place(relx=0.05, rely=0.6, relwidth=0.25, relheight=0.1)
but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 10, 'bold'), command=limpar)
but_limpar.place(relx=0.35, rely=0.6, relwidth=0.25, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 10, 'bold'), command=root.destroy)
but_sair.place(relx=0.65, rely=0.6, relwidth=0.25, relheight=0.1)

texto1 = Label(text="Consumo de combustível Preço:",
                           font=("Arial", 10, "bold"), bg="#d9ead3")
texto1.place(relx=0.05, rely=0.75)

texto2 = Label(text="Consumo(ℓ): ",
                           font=("Arial", 10, "bold"), bg="#d9ead3")
texto2.place(relx=0.35, rely=0.85)
resultado_preco = StringVar()
resultado_preco_texto = Label(textvariable=resultado_preco,
                           font=("Arial", 12, "bold"), bg="#d9ead3")
resultado_preco_texto.place(relx=0.65, rely=0.75, relwidth=0.3,relheight=0.08)

resultado_consumo = StringVar()
resultado_consumo_texto = Label(textvariable=resultado_consumo,
                           font=("Arial", 12, "bold"), bg="#d9ead3")
resultado_consumo_texto.place(relx=0.65, rely=0.85, relwidth=0.3,relheight=0.08)
root.mainloop()