.zalando-sans-expanded-lien {
  font-family: "Zalando Sans Expanded", sans-serif;
  font-optical-sizing: auto;
  font-weight: 200;
  font-style: normal;
}

.zalando-sans-expanded-text {
  font-family: "Zalando Sans Expanded", sans-serif;
  font-optical-sizing: auto;
  font-weight: 425;
  font-style: normal;
}

.zalando-sans-expanded-titre {
  font-family: "Zalando Sans Expanded", sans-serif;
  font-optical-sizing: auto;
  font-weight: 600;
  font-style: normal;
}

body{
    background-color: #444444;
    color: #FDFBFB;
    height: 100%;
    margin: 0;
}

.icon{
    max-height: 70px;
    max-width: 70px;
}

.nav{
    display: flex;
    justify-content: center;
    background-color: #313131;
}

.nav-a{
  color: #FDFBFB;
  text-decoration: none;
  padding: 10px;
  font-size: 20px;
  display: inline-block;
  position: relative;
  margin-right: 20px;
}

.nav-a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 2px;
  background: #FDFBFB;
  transition: width 0.3s ease;
}

.nav-a:hover::after {
  width: 100%;
}

h1{
    font-size: 60px;
    text-align: center;
}

.description{
    text-align: center;
    font-size: 35px;
}

.page-principal {
  display: flex;
  justify-content: space-between;
  align-items: stretch; 
  gap: 40px;
  margin: 30px auto;
  max-width: 1200px;
  flex-wrap: wrap;
}

.page-principal section {
  display: flex;
  flex-direction: column; 
  align-items: center;
  flex: 1;
  min-width: 300px;
  max-width: 380px;
  text-align: center;
  box-sizing: border-box;
}

.footer-class{
    text-align: center;
    bottom: 0;
    width: 100%;
}

.img-css{ 
    border-radius: 15px;
}

.img-pages {
  border-radius: 15px;
  border: solid #FDFBFB 2px;
  width: 100%;
  height: auto;
  object-fit: cover;
  margin-bottom: 20px;
}

.img-projet {
  max-width: 380px;
}

.contenu {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

@media (max-width: 900px) {
  .page-principal {
    flex-direction: column;
    align-items: center;
  }

  .page-principal section {
    max-width: 90%;
    margin-bottom: 30px;
  }

  .img-pages,
  .img-projet {
    max-width: 90%;
  }
}