main {
  margin-top: 5em;
}
footer {
  margin-top: 2em;
}

.carres {
  display: grid;
  grid-template-rows: 1fr;
  grid-template-columns: 1fr;
  gap: 2em;
}

.carres-one {
  display: grid;
  grid-template-rows: 1fr;
  grid-template-columns: 1fr;
}

img {
  max-width: 100%;
}

.title2 {
  font-size: 1.5rem;
}

.title1 {
  font-size: 2rem;
}

.nav-second ul {
  padding-left: 0;
  margin-top: 2em;
  margin-bottom: 2em;

  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1em;
}
.nav-second li {
  list-style-type: none;
}
.nav-second a {
  color: #3c403d;
  text-decoration: none;
}
.nav-second a.active {
  border-bottom: 4px solid #6b7456;
}

.cite-jcs {
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cite-jcs cite {
  font-style: normal;
  font-weight: bold;
}

.cite-jcs::before {
  content: "\275D";
  font-size: 1.5rem;
  color: #6b7456;
}

@media (min-width: 875px) {
  main {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
  }

  .carres {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    grid-template-rows: 1fr 1fr;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 0;
  }

  .carres-one {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    grid-template-rows: 1fr;
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  div.pad {
    padding: 1em;
  }
  .nav-second a {
    font-size: 1.5rem;
  }
}