@import url('https://fonts.googleapis.com/css?family=Raleway:200,300,400,600,700,800,900');


html {
background-color: #ffffff;
width: 100%;
height: 100%;
padding: 0;
margin: 0;
}

body {
background-color: #ffffff;
width: 100%;
height: 100%;
padding: 0;
margin: 0;
overflow-x: hidden;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* menu ordinateur */

#mainHeader {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 80px;
      background-color: #f3f3f3;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 30px;
      transition: box-shadow 0.5s ease;
      z-index: 999;
    }

    #mainHeader.scrolled {
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    
    }

    .logo img {
    padding-left: 90px;
    padding-top: 5px;
    margin: 0;
    height: 65px;
    display: block;
    }

    nav ul {
    padding-right: 70px;
    list-style: none;
    display: flex;
    gap: 60px;
    }

    nav ul li a { 
    position: relative;
    font-family: 'Raleway';
    font-size: 1.1rem;
    font-weight: 400;
    text-decoration: none;
    color: #333;
    transition: color 0.3s;
    }

    /* Menu déroulant */

    .menu-deroulant {
  position: relative;
}

.sous-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: -30px;
  background-color: #fafafa;
  padding: 10px 5px 15px 5px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  display: none;
  min-width: 160px;
  z-index: 1000;
}

.menu-deroulant:hover .sous-menu {
  display: block;
}

.sous-menu li {
  padding: 0;
  text-align: left;
  padding: 0 15px;
}

.sous-menu li a {
  display: block;
  padding: 8px 0;
  color: #333;
  text-decoration: none;
  position: relative;
  transition: color 0.3s;
  font-size: 1rem;
}

/* Effet point gris sur les liens du sous-menu */
.sous-menu li a::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #666666;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.sous-menu li a:hover::before {
  opacity: 1;
  transform: translateX(-50%) translateY(3px);
}


    /* Fin Menu déroulant */


.menu a, .menuouvert {
font-family: 'Raleway';
font-size: 1.1em;
text-decoration: none;
color: #000028;
font-weight: 400;
}

.menuouvert li {

left: 50%;
bottom: -7px;
transform: translateX(-50%);
 width: 6px;
height: 6px;
border-radius: 50%;
background: #666666;
opacity: 1;
}

nav ul li {
  position: relative; /* Permet au ::before de se positionner par rapport au <li> */
}

nav ul li a::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -7px;
  transform: translateX(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #666666;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

nav ul li a:hover::before {
  opacity: 1;
  transform: translateX(-50%) translateY(3px);
}

#entet .logo-responsive {
  display: none;
}

#responsive {
  display: none;
}


section {
 padding: 0;
}

#entet {
background: #f3f3f3;
height: 600px;
position: relative;  
}

#spher p {
position: relative;
display: inline-block;
margin-top: 120px;
margin-left: 60%;
z-index: 1;
}


.sphere {
width: 450px;
height: auto; 
}

.titre1 {
position: absolute;
font-family: Raleway;
font-size: 5.4rem;
font-weight: 700;
text-transform: uppercase;
color: #000028;
margin-top: -340px;
margin-left: 11%;
float: left;
z-index: 1;
}

.eau {
color: #000028;#ffffff;
}

 /* Partie conteneur1*/


 


#conteneur1 {
     
      margin: 150px 0px 0px 0px;
      display: flex;
      justify-content: center;
      align-items: center;
      backgrund-color: ;#fafafa;#f3f3f3;#ffffff;
      font-family: Arial, sans-serif;
    }

    .container {
      display: flex;
      flex-direction: row;
      width: 1200px;
      height: 500px;
      border-radius: 50px;
      overflow: hidden;
      background-color: #f3f3f3;
    }

    .left {
      width: 55%;
      /*background-image: url('https://via.placeholder.com/400x400');*/
      background-size: cover;
      background-position: center;
    }

    .right {
      width: 45%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 20px 110px;
      text-align: start;
      background-color: #f3f3f3;
    }

    .right h1 {
      font-size: 3em;
      color: #000028;
      font-family: Raleway, Arial, sans-serif;
      font-weight: 900;
    }

    .right p {
    font-size: 1.2em;
    padding-top: 25px;
    color: #000028;
    font-family: Raleway, Arial, sans-serif;
    font-weight: 600;
    }

    .right a.button {
      display: inline-block;
      margin-top: 50px;
      padding: 10px 24px;
      background-color: #000028;
      color: #f3f3f3;
      text-decoration: none;
      border-radius: 20px;
      font-weight: bold;
      transition: background-color 0.5s ease;
      text-align: center;
      width: fit-content;
    }

    .right a.button:hover {
      background: #2c5483;
      color: #f1f1f1;#000028;
      border-radius: 20px;
    }


#conteneur2 {
    display: inline-block;
    margin-top: 250px;
    margin-bottom: 220px;
}
   

    .prog {
        font-family: Raleway;
        font-size: 2.8em;
        font-weight: 700;
        float:left;
        margin-left: 10%; 
        padding-bottom: 1px;
    }

/* footer */

footer {
      font-family: 'Raleway';
      font-size: 1.1rem;
      font-weight: 400;
      background: #f3f3f3;
      padding: 2rem 1rem;
      text-align: center;
    }

    .footer-columns {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 250px;3rem;
      margin-bottom: 1.5rem;
    }

    .footer-column {
      display: flex;
      flex-direction: column;
      align-items: start;
      min-width: 140px;
      padding-top: 40px;
      padding-bottom: 60px;
    }

    .footer-column a {
      position: relative;
      color: #000028;#333;
      text-decoration: none;
      margin: 0.5rem 0;
      font-size: 1em;
      transition: color 0.3s ease;
    }

    .footer-column a::after {
      content: "";
      position: absolute;
      bottom: -8px;
      left: 50%;
      transform: translateX(-50%);
      width: 7px;
      height: 7px;
      background: #666;
      border-radius: 50%;
      opacity: 0;
      transition: opacity 0.7s ease, transform 0.5s ease;
    }

    .footer-column a:hover::after {
      opacity: 1;
    }

    .footer-colum {
      padding-top: 40px;
    }

    .social-icons {
      display: flex;
      gap: 18px;
      justify-content: center;
      margin-top: 0.5rem;
    }

    .social-icons a img {
      width: 30px;
      height: 30px;
      transition: transform 0.3s ease;
    }

    .social-icons a:hover img {
      transform: scale(1.25);
    }

    .copyright {
      font-size: 0.875rem;
      color: #565656;
    }

    /* ====================Responsive Design (max-width: 768px) ====================== */
    @media (max-width: 980px) {

  #mainHeader {
   display: none;
  }


  #responsive, #entet .logo-responsive {
  display: block;
  }

  
/* fin menu ordinateur */

/* Logo responsive dans #entet */
.logo-responsive {
  position: absolute;
  top: 20px;
  left: 20px;
  height: 60px;
  z-index: 2;
}

.logo-responsive img {
  height: 60px;
}


/* Bouton hamburger */
.menu-toggle {
  position: fixed;
  top: 20px;
  right: 20px;/*20px*/
  z-index: 1001;
  cursor: pointer;
  font-size: 60px;/*24px*/
}

/* Zone de menu latéral */
.side-menu {
  position: fixed;
  top: 0;
  right: -50%;
  width: 50%;
  max-width: 400px;300px;
  height: 100%;
  background: #f3f3f3;
  box-shadow: -2px 0 10px rgba(0,0,0,0.2);
  transition: right 0.4s ease;
  padding: 60px 20px;
  box-sizing: border-box;
  z-index: 1000;
}

.side-menu {
  width: 100%;
  max-width: 400px;
}


/* Menu ouvert */
.side-menu.open {
  right: 0;
}

/* Liens principaux */
.side-menu ul {
  flex-direction: column;
  margin-top: 70px;
  list-style: none;
  padding: 0;
}

.side-menu ul li {
  margin: 10px 0;
}

.side-menu ul li a {
  text-decoration: none;
  color: #333;
  font-size: 2rem;
  font-weight: 600;
}

/* Sous-menu */
.side-menu .submenu {
  margin-top: 30px;
  
  padding-left: 25px;
}


.side-menu .submenu li {
  margin-bottom: -15px ;
}

.side-menu .submenu li a {
  font-size: 1.75rem;
  font-weight: 500;
}

/* Icône croix */
.menu-toggle.open:before {
  content: '✖';
}

/* Icône hamburger par défaut */
.menu-toggle:before {
  content: '☰';
}

#container1 {
  margin-top: 250px;
}

.container {
      width: 1200px;
      height: 370px;
      margin: 0 25px;
}

.left {
  width: 50%;
}

.right {
  width: 50%;
  padding: 10px 50px;
}

.right p {
    font-size: 1.5em;
    padding-top: 10px;
}

.right a.button {
      font-size: 1.4em;
      margin-top: 20px;
      padding: 10px 24px;
    }

#conteneur2 {
    margin-top: 200px;
    margin-bottom: 140px;
}

 /* footer */

.footer-columns {
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.footer-column {
  padding-top: 20px;
  padding-bottom: 20px;
  align-items: center;
  width: 100%;
}

.footer-column a {
  font-size: 1.85rem;
}
.social-icons {
  gap: 50px;
     
}

.social-icons a img {
  width: 70px;
  height: 70px;
  transition: transform 0.3s ease;
}

.copyright {
font-size: 1.2rem;
}

}