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

body {
  font-family: poppins, sans-serif;
  color:white;
  background-color: black;
  text-align: center;
  align-items: center;
  font color: black;
  height:100%;
  width: 100%;

}

header {
background-color: white;
}

header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1em;
  width: 100%;
}

header nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}

header nav ul li {
  margin-right: 1em;
}

header nav ul li a {
  color: green;
  text-decoration: none;
  font-size: 1.6em;
}

header nav ul li a:hover {
  color: white;
}

.text{
  margin-left: 2em;
  font-size: 1em;

}

.textprojets{
  margin-top: -9%;
  float: center;
  width: 38%;
  text-align: left ;
margin-left: 10%;
  font-size: 1em;


}


.blocimages{
display:flex;
overflow-x:scroll;
width:100%;

justify-content:space-between color: black;
}


.blocimages img {
  width: 30%
}

.blocimagesphotos{
display:flex;
overflow-x:scroll;
width:100%;

justify-content:space-between color: black;
}

.blocimagesphotos img {
  width: 20%

}

.blocimagesprojets{
  float:right;
width:50%;
align-items: right;
justify-content:space-between color: black;
margin-top: -9%;
}


.blocsprojets{
  margin-top: 10%;
  float: center;
  display: flex;
}

.projetsimages img{
  float: left;
  width: 39%;
margin-left: 10%;
}




.blocimagesprojets img {
  width: 40%
}


::-webkit-scrollbar {
  width: 0.2em;
  background-color: transparent;
}

::-webkit-scrollbar-thumb {
  background-color:green;

}



.image{
  height: 80%;
  width: 80%;
  background-color:blue;
}

.img1{
  display:flex;
  overflow-x:scroll;
  width:100%;
  justify-content:space-between; }



  .imageseules img{
    width: 30%;
    display: center;
  }

  .imageseules1 {
    margin-left: 1%;
    flex-wrap: wrap;
    display: flex;
      }

  .imageseules1 img{
    width: 20%;
    display: center;
    width : 300px;

  }

  .imageseules2 {
  margin-left:10% ;
  overflow-x:scroll;
    display: flex;
      float: center;
      width: 100%;

      }


  .imageseules2 img {
    display: flex;
    width: 40%;

      }

.logo img{
float: center;
width: 3%;
  }

  .logocontact img{
    margin-top: 15%;
  float: center;
  width: 3%;
    }

.fleche img{
  margin-left: 1;
  display: left;
  width: 1%
}


  .text{
    width: 90%;
    text-align: center;
  }

#hero {
  background-size: cover;
  background-position: center;
  height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
}

#hero h1 {
  font-size: 4em;
  margin-bottom: 0.5em;
  color: white;
}


}
#hero p {
  font-size: 1.5em;
  margin-bottom: 2em;
  align-items: center; }

  @keyframes background-animation {
    from { background-position: 0% 0%; }
    to { background-position: 100% 100%; }
 }


    .return-button {
  background-color: blue;
  padding: 10px 15px;
  border: none;
  cursor: pointer;
  margin-left: auto;
}

.return-button:hover {
  background-color: darkblue;
}


#popup-overlay {
  display: none;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.7);
}

#popup-box {
  display: none;
  position: fixed;
  top: 50%;
 }


.footer {
  background-color: white;
  color: #333;
  padding: 2em;
  width: 100%;
  display: flex;
  justify-content: center;
  }


}

.footer-container {
  display: flex;
  background-color: white;
}

.footer-item {
  width: 100%;
  background-color: black;
  margin: 0 37.5% 0 37.5;

  text-align: center;
  color: white;
}

.footer-item h3 {


}


form {
  width: 40%;
  margin: 0 auto;
  text-align: left;
  padding: 10px;
font: poppins;

}

label {
  font-size: 1.2em;
  font-weight: bold;
  margin-bottom: 1px;
  display: block;
}

input[type="text"], input[type="email"], textarea {
  width: 100%;
  padding: 12px 20px;
  margin: 8px 0;
  box-sizing: border-box;
  border-radius: 4px;
}

input[type="submit"] {
  width: 100%;
  background-color: #4CAF50;
  color: white;
  padding: 14px 20px;
  margin: 8px 0;
  border: none;
  border-radius: 1px;
  cursor: pointer;
}

input[type="submit"]:hover {
  background-color: #45a049;
}


.footer{
  background-color: white;
}