nav.burger {
  position: fixed;
  width: 100%;
  background-color: #1A4474;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2;
}

header nav ul{
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 5%;
  margin-right: 2%;
  width: 50%;
  padding: 0px;
  padding-right: 1%;
  margin-bottom: 0px;
}

header nav ul li {
  list-style-type: none;
  height: fit-content;
  
}

header nav ul li:last-child {
  margin-right: 5%;
}

body h1 {
  text-align: center;
}

body section ul:first-child li{
  list-style-type: none;
}

body section ul {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 20%;
  right: 2%;
  gap: 5px;
  background-color: white;
  border-radius: 3px;
  width: max-content;
  padding-top: 1%;
  padding-bottom: 1%;
  padding-left: 1%;
  padding-right: 1%;
}

body section ul li {
  list-style-type: none;
}

body section ul li:first-child {
  padding-left: 5px;
}

body section ul li:nth-child(2) {
  padding-left: 5px;
}

body section ul li:nth-child(4) {
  padding-left: 5px;
}

body button {
  background-color: blue;
  color: white;
  border-radius: 3px;
  font-size: 2ch;
}

body section h1:first-child {
  background-color: #1A4474;
  color: white;
  margin-bottom: 20px;
}

body {
  background-color: #1A4474 !important;
}

.logo {
  margin-left: 2%;
  width: 30%;
}

.photo_environnement {
  width: 100%;
}

.slogan-container {
  position: absolute;
  top: 40%;
  left: 15%;
  width: 25%;
  background-color: black;
  opacity: 0.8;
  border-radius: 5px;
  padding: 2%;
}

.slogan {
  top: 35%;
  left: 15%;
  font-size: 250%;
  color: #62d050;
}

.button-1{
  background-color: white;
  color: black;
  border: 2px solid blueviolet;
  padding: 10px 4%;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  border-radius: 6px;
  cursor: pointer;
}
  
.button-1:hover, .button-1:active{
  background-color: blueviolet;
  color: white;
  transform: scale(1.05);
}

.button-2 {
  align-items: center;
  background-image: linear-gradient(144deg,#AF40FF, #5B42F3 50%,#00DDEB);
  border: 0;
  border-radius: 8px;
  box-shadow: rgba(151, 65, 252, 0.2) 0 15px 30px -5px;
  box-sizing: border-box;
  color: #FFFFFF;
  font-family: Phantomsans, sans-serif;
  font-size: 24px;
  line-height: 2em;
  height: 100%;
  max-height: 54px;
  max-width: 100%;
  padding: 3px;
  padding-left: 5%;
  padding-right: 105%;
  text-decoration: none;
  white-space: nowrap;
}

.button-2:active,
.button-2:hover {
  outline: 0;
  color:#EE6F01;
  transform: scale(1.1);
}

/* MENU "TAB" CONTENEUR" */
.tab-container {
  display: flex;
  width: 100%;
  height: 100%;
  background-color: #fdf7f0;
}

/* MENU "TAB"*/
body div {
flex-grow: 2;
text-align: center;
}

body h2 {
font-size: xx-large;
}

body div img {
padding-top: 50px;
width: 100%;
max-width: 620px;
height: 416px;
}

.tab {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  width: 25%;
  align-items: baseline;
  border-right: 1px solid gray;
}

.tab button {
  background-color: inherit;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
  font-size: 20px;
  width: 100%;
  text-align: initial;
  color: black;
}

.tab button:hover {
  color:#6E9CFA;
}

.tab button.active {
  font-weight: bold;
  color:#6E9CFA;
  border-left: 5px solid #6E9CFA;
  background-color: #fdf7f0;
  border-radius: 0px;
}

/* CONTENT */
.tabcontent {
  display: none;
  width: 75%;
  background-color: lightgray;
  font-size: large;
} 

.tabcontent p {
  margin-top: 20px;
}

.open-btn:link, .close-btn:link {
  display: none;
}

.open-btn-2, .close-btn-2 {
  display: none;
}

/* FOOTER */
footer {
  display: flex !important;
  background-color: #1A4474;
  bottom: 0;
  width: 100%;
  height: 5%;
}

footer p {
  font-size: 20px;
  font-family: Arial, Helvetica, sans-serif;
  margin-top: 8px;
  margin-left: 20px;
  color: white;
}

footer .button-2 {
  margin-left: 5%;
  margin-top: 8px;
  height: 30px;
  width: 196px;
  padding-right: 0px;
  padding-left: 0px;
  line-height: 0px;
}

@media screen and (max-width: 768px) {
  .logo{
    width: 95%;
  }
  
  nav > a:first-child {
    width: 20%;
    max-height: 100px;
    max-width: 110px;
  }

  nav.burger {
    height: 100px;
  }

  nav ul {
    display: flex;
    position: fixed;
    margin: 0;
    transform: translateY(-100%);
    background-color: #1A4474;
    width: 100%;
    height: 100px;
    transition: transform 0.2s;
    align-items: center;
    gap: 9%;
  }

  .open-btn:link, .close-btn:link {
    display: block;
    background-color: #1A4474;    
    text-decoration: none;
  }

  .close-btn, .open-btn {
    top: 20%;
    font-size: 40px;
    font-family: monospace;
    color: black;
    margin-right: 20px;
  }

  .open-btn:active, .open-btn:hover, .close-btn:active, .close-btn:hover{
    color: white;
  }

  nav.burger.visible ul {
    transform: translateY(0%);
    width: 100%;
    padding-right: 0px;
    margin-right: 0px;
  }

  header nav ul {
    gap: 0%;
    margin-right: 10%;
  }

  header nav ul li {
    padding: 0px;
    width: fit-content;
    font-size: x-small;
    margin: 4%;
  }

  .button-2 {
    font-size: 1em;
    width: 5%;
  }
  
  .slogan-container {
    top: 15%;
    left: 10% ;
    width: 50%;
  }

  .slogan {
    font-size: 2ch;
  }

  .sup{
    display: none;
  }
  
  .open-btn-2, .close-btn-2 {
    display: block;
  }

  div.tab.visible{
    transform:translateX(0%);
    position:absolute;
    height: 105%;
  }

  div.tab{
    display: flex;
    position: fixed;
    margin: 0;
    transform: translateX(-100%);
    width: 100%;
    transition: transform 0.2s;
    align-items: center;
    background-color: #fdf7f0;
    height: 100%;
  }

  .Map {
    max-width: max-content;
    max-height: 211px;
  }

  /* OPEN ET CLOSE BOUTON 2 */
  /* ATTENTION LE .close-btn-2 est également configurer avec .open-btn et .close-btn */
  .close-btn-2 {
    font-size: 35px;
    width: 100%;
    color: black;
  }

  .close-btn-2:active, .close-btn-2:hover {
    background-color: #fdf7f0;
    color: #EE6F01;
    padding-bottom: 1.5%;
  }

  .close-btn-2:link{
    text-decoration: none;
  }

  .open-btn-2 {
    display: block;
    position: absolute;
  }

  .open-btn-2 img{
    width: 64px;
    height: 64px;
    padding-top: 0px;
  }

  .open-btn-2:active, .open-btn-2:hover {
    filter: brightness(0) saturate(100%) invert(50%) sepia(100%) saturate(600%) hue-rotate(360deg) brightness(100%) contrast(100%);
  }

  /* FOOTER */
  footer p{
    font-size: smaller;
    margin-top: 4px;
  }

  footer .button-2{
    margin-top: 5px;
  }
}