/* Smartphones (portrait and landscape) ----------- */
@media only screen and (max-width: 767px) {
  header {
    flex-direction: column;
  }

  header > img {
    width: 20%;
  }

  nav {
    flex-direction: column;
    align-items: center;
  }

  nav a {
    font-size: 16px;
  }

  #sect-pri {
    flex-direction: column;
    text-align: center;
  }

  #sect-pri > div {
    max-width: 100%;
  }

  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 20px;
  }

  #sect-pri > img {
    width: 150px;
  }

  figure,
  picture {
    width: 100%;
    max-width: 300px;
  }

  figure > img,
  picture > img {
    max-width: 100%;
  }

  figure > figcaption,
  picture > p {
    font-size: 18px;
  }

  #linksExternos button {
    width: 150px;
    height: 150px;
  }

  #linksExternos button img {
    width: 100px;
  }

  #linksExternos button span {
    font-size: 16px;
  }

  footer {
    flex-direction: column;
  }

  #contato {
    border-left: none;
  }

  form input,
  form textarea {
    width: 100%;
  }
}

/* Tablets and larger smartphones ----------- */
@media only screen and (min-width: 768px) and (max-width: 1024px) {
  header > img {
    width: 15%;
  }

  #sect-pri {
    flex-direction: column;
    text-align: center;
  }

  #sect-pri > div {
    max-width: 100%;
  }

  h1 {
    font-size: 56px;
  }

  h2 {
    font-size: 22px;
  }

  #sect-pri > img {
    width: 175px;
  }

  figure,
  picture {
    width: 100%;
    max-width: 400px;
  }

  figure > img,
  picture > img {
    max-width: 100%;
  }

  figure > figcaption,
  picture > p {
    font-size: 20px;
  }

  #linksExternos button {
    width: 170px;
    height: 170px;
  }

  #linksExternos button img {
    width: 110px;
  }

  #linksExternos button span {
    font-size: 18px;
  }

  footer {
    flex-direction: column;
  }

  #contato {
    border-left: none;
  }

  form input,
  form textarea {
    width: 100%;
  }
}

/* Desktops and laptops ----------- */
@media only screen and (min-width: 1025px) {
  header {
    padding: 24px;
  }

  header > img {
    width: 10%;
  }

  nav a {
    font-size: 18px;
  }

  #sect-pri {
    flex-direction: row;
  }

  #sect-pri > div {
    max-width: 500px;
  }

  h1 {
    font-size: 64px;
  }

  h2 {
    font-size: 24px;
  }

  #sect-pri > img {
    width: 192px;
  }

  figure,
  picture {
    width: 100%;
    max-width: 500px;
  }

  figure > img,
  picture > img {
    max-width: 400px;
  }

  figure > figcaption,
  picture > p {
    font-size: 24px;
  }

  #linksExternos button {
    width: 192px;
    height: 192px;
  }

  #linksExternos button img {
    width: 128px;
  }

  #linksExternos button span {
    font-size: 18px;
  }

  footer {
    flex-direction: row;
  }

  form input,
  form textarea {
    width: 200px;
  }
}