body {
  margin: 0;
  display: grid;
  grid-template-areas:
    "header header"
    "menu main"
    "footer footer";
}

header {
  display: flex;
  justify-content: space-between;
  margin-top: 2em;
  margin-left: 3em;
  margin-right: 3em;
  grid-area: header;
}

header a {
  color: black;
}

#header-glider {
  display: flex;
}

#header-glider img {
  margin-top: 20px;
  margin-left: 10px;
}

header h2 {
  margin-top: 0;
}

#lang {
  margin-top: 20px;
  display: grid;
  grid-auto-flow: column;
  grid-column-gap: 1em;
  grid-template-rows: fit-content(100%);
}

#lang a {
  font-weight: bold;
  font-size: 150%;
}

#lang #choose {
  color: #4970E1;
}

#lang a:hover {
  color: #FA4DBA;
}

#header-links {
  margin: 2em 0 2em 3em;
  display: flex;
  flex-direction: column;
  grid-area: menu;
}

#header-links a {
  color: black;
  padding: 1em;
}

#header-links a:hover {
  color: white;
  background-color: black;
}

#main {
  margin: 2em 3em 5em 1em;
  grid-area: main;
}

footer {
  background-color: #304B99;
  padding: 1em;
  padding-bottom: 0;
  grid-area: footer;
}

#buttons {
    margin-top: 1em;
}

#fsf {
  text-align: right;
}

/* boutons avant la liste des 88x31. bien alignés au centre de la div */
.pred-buttons {
  margin-top: auto;
  margin-bottom: auto;
}

#footer-main {
  display: grid;
  grid-template-columns: 25% 50% 10% 15%;
}

#footer-text p {
  justify-self: center;
  margin: 0;
  color: white;
  text-align: center;
}

#footer-text a, #footer-text span {
  color: white;
}

#footer-contact {
  padding-top: 1em;
  font-size: 12px;
}

#footer-link-email {
  color: black;
  text-decoration: underline dotted;
}

#buttons {
  text-align: center;
}

#buttons div {
  margin-bottom: 1em;
}

@media only screen and (max-width: 641px) {
  body {
    grid-template-areas:
      "header header"
      "main main"
      "menu menu"
      "footer footer";
  }

  #header-links {
    position: sticky;
    bottom: 0;
    margin-left: 0;
    margin-top: 0;
    flex-direction: row;
    background-color: white;
    border-top: solid black;
    flex-wrap: wrap;
  }

  header {
    display: flex;
    flex-direction: column;
  }

  #lang {
    justify-items: center;
  }

  #main {
    margin: 2em 1em 2em 1em;
  }

  #footer-main {
    display: flex;
    flex-direction: column;
  }

  .pred-buttons {
    align-self: center;
  }
}