Alura Fone

* {
  box-sizing: border-box;
/*   margin: 0;
  padding: 0; */
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;

  background-color: #191919;
  min-height: 100vh;
}

input {
  border: none;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  font-family: inherit;
}

h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  color: #fff;
}

.teclado {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px; 

  background-color: #cccccc;
  border-radius: 30px;

  padding: 10px;
}

input[type=button] {
  border-radius: 20px;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  height: 80px;
  width: 80px;
}

input[type=tel] {
  background-color: #cccccc;
  border-radius: 10px;
  font-family: monospace;
  font-size: 22px;
  height: 40px;
  margin-bottom: 24px;
  padding: 10px;
  text-align: center;
  width: 280px;
}

.ativa {
  background-color: yellow;
}

const listaDeTeclas = document.querySelectorAll ('input[type=button]');
const inputTel = document.querySelector('input[type=tel]');

for( let indice=0; indice < listaDeTeclas.length; indice++){
  const tecla = listaDeTeclas[indice];
  
  tecla.onclick = function() {
    inputTel.value = inputTel.value + tecla.value;
  }
}

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