body, html {
    margin : 0;
    padding : 0;
    overflow-x: hidden;
    background-color: #262626;
}


.conteneur_logo {
    display: flex;
    align-items: center;
    justify-content: center;
}


.logo {
    width: 250px; 
}

.conteneur_nav {
    position : sticky;
    position:relative;
    z-index:100 ;
    border-bottom: 0.5px solid white;
    border-top: 0.5px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top:  8px;
    padding-bottom:  8px;
}

.burger {
    background-color: #262626;
    border:none;
    cursor: pointer;
    display: none;
    flex-direction: column;
    cursor: pointer;
    position: relative;
    z-index: 20;
}

.burger .line {
    width: 25px;
    height: 3px;
    background: #ffffff;
    margin: 4px;
}

.nav-links.show {
    display: block; /* Show navigation links for mobile */
    padding-top: 50px;
}


.menu_nav {
    display: flex;
    align-items: center;
    justify-content: center;
}


.nav-links {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-links li {
    margin-right: 20px;
}

.nav-links a {
    text-decoration: none;
    color: #ffffffff;
}

a.a_header {
    font-family: "Lexend", sans-serif;
    font-weight: 300;
    font-size:18px;

}

a.a_header:hover {
    color: #2773DB ;
}

/* Index */

.h1-hero {
    color:white;
    font-family: "Lexend", sans-serif;
    font-weight: 300;
    font-size:36px;
}

.btn-hero {
   background-color: rgba(0, 0, 0, 0.7); 
   color:white ; 
   padding: 15px 30px; 
   text-decoration: none;
   border-radius: 5px;
    font-family: "Lexend", sans-serif;
    font-weight: 300;
    font-size:18px;

}

.btn-hero:hover {
    background-color: #2773DB;
    color: white;

}


.hero {
  height: 100vh; 
  background-image: url("/img/AlternPhoto_couverture.jpg");
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  margin-top: -207px;
}

.h2 {
font-family: "Lexend", sans-serif;
  font-size: 24px;
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: normal;
  color:  white;

}


.p {
    font-family: "Lexend", sans-serif;
  font-size: 18px;
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: normal;
  color:  white;

}

.presentation {
    display: flex;
    align-items: center;
    justify-content : space-between;
    gap: 50px;
    padding :60px; 
}

/* Footer */

footer {
  background-color:  #262626;
  padding: 15px 20px;
  font-size: 14px;
}

.footer-container {

  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto;
  flex-wrap: wrap; /* permet de passer à la ligne si besoin */
  gap: 10px; /* espace entre les éléments sur mobile */
}

.texte-footer {

  font-family: "Lexend", sans-serif;
  font-size: 16px;
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: normal;
  text-decoration: none;
  color:  white;

}

.footer-container a {
    
  font-family: "Lexend", sans-serif;
  font-size: 16px;
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: normal;
  text-decoration: none;
  color:  white;
}

.footer-container a:hover {
  color: #2773DB ;
}







@media screen and (max-width: 1024px) {
    .burger {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        align-items: center;
        background-color: #262626;
        width: 100%;
        position: absolute;
        top: 100px; /* Ajuste selon la hauteur de ton header */
        left: 0;
        z-index: 10;
    }

    .nav-links.show {
        display: flex;
    }

    .nav-links li {
        margin: 15px 0;
    }

    .h1-hero {
    
    font-size:24px; 
    }

.presentation {
    flex-direction: column;        
    gap: 20px;         
}


    .footer-container {
    flex-direction: column;
    text-align: center;
  }
}