document.getElementById('pot').textContent = potencia.toFixed(2);
document.getElementById('diario').textContent = diario.toFixed(3);
document.getElementById('mensal').textContent = mensal.toFixed(2);
document.getElementById('custo').textContent = custo.toFixed(2);
document.getElementById('result').style.display = 'block';
}
function limpar() {
document.getElementById('potencia').value = '';
document.getElementById('horas').value = '';
document.getElementById('dias').value = '30';
document.getElementById('tarifa').value = '1.00';
document.getElementById('result').style.display = 'none';
}