/**********************************************************************
                     header of the website  
 ********************************************************************/


 header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 2.5rem;
  }
  
  /* header item all  */
  
  header li, header a, header .btn {
    text-transform: uppercase;
    text-decoration: none;
    color: rgba(0, 0, 0, 0.56);
    font-weight: bolder;
    font-family: 'Roboto', sans-serif;
  }
  
  /* header logo  */
  
  header .logo {
    width: 25%;
    cursor: pointer;
 
  }
  
  /* header img logo  */
  header img{
      width: 13rem;
      margin-left: 2rem;
      transform: translateY(-1rem);
  }
  
  /* header nav   */
  
  header .nav {
    margin-right: auto;
    width: 40%;
    transform: translateY(.2rem);
  }
  
  /* nav ul  */
  header .nav ul {
    display: flex;
  }
  
  /* nav li  */
  
  header .nav ul li {
    list-style-type: none;
    margin-left:4.5rem ;  
  }
  
  /* nav a  */
  header .nav ul li a {
    font-size: 2.2rem;
   
  }
  
  /* actice nav  */
  
  header .nav ul li a.active-nav {
    border-bottom: .1rem solid;
  }
  
  /* icon of the header  */
  
  header .icon {
   display: flex;
   width: 25%;
  }
  
  /* icon i  */
  
  header .icon i {
    display: block;
    font-size: 2.5rem;
    margin-left: 2rem;
    padding: .4rem;
    color: rgba(0, 0, 0, 0.56);
    transform: translateY(.1rem);
  
  }
  
  
   /* header button */
  header .btn{
    border: none;
    background: transparent;
  }

  header .btn a{
    display: inline-block !important;
    background: #025467 !important;
    color: #f3f3f3;
    font-size: 1.7rem;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: .3rem;
    transform: translateY(-.4rem);
  }
  
 header .btn a:hover {
    background: #1e5483;
  } 
  
.menu-burger{
 display: none;
}
.menu-logo{
  display: none;
}


@media only screen and (max-width: 960px) {

   .btn-burger{
     cursor: pointer;
     width: 6rem;
     height: 4rem;
     padding: 1rem;
     margin: 0 5rem;
     position: relative;
     z-index: 3;
   }
  .menu-burger{
    display: block;
    width: 4rem;
    height: .4rem;
    background: #eb4a34;
    border-radius: .2rem;
    position:absolute;
    top:1.6rem;
  }
  .menu-burger::after,
  .menu-burger::before{
    content: "";
    position: absolute;
    width: 4rem;
    height: .4rem;
    background: #e84a34;
    border-radius: .2rem;
    transition: all .5s ease-in-out;
    
  }
  .menu-burger::after{
    transform: translateY(-1rem);
  }
  .menu-burger::before{
    transform: translateY(1rem);
  }
 
  .open .menu-burger {
    background: transparent;
  }

  .open .menu-burger::after{
      transform: rotate(45deg);
  }
  .open .menu-burger::before{
      transform: rotate(-45deg);
  }

  header{
    position: relative;
  }
  header .logo img{
    width: 20rem;
    margin: 4rem;
  }
  header .nav {
   display: none;
   position: fixed;
  }
  header .icon {
    display: none;
    position: absolute;
    left: 2.5rem;
    top:40rem;
    z-index: 4;
  }
  header .icon i{
    display: inline-block;
  }
 
  header .btn{
    display: none;
    position: absolute;
    left: 4rem;
    top:33rem;
    z-index: 4;
  }
  .fixed-position{
    position: fixed !important;
  }
  header .nav {
    display: none;
    position: fixed;
    top: -.3rem;
    left: 0;
    width: 100vw !important;
    height: 100vh;
    /* This give the height 100% of the screen or, '100% of View Height' */
    background-image:linear-gradient(90deg,hsl(0, 0%, 100%)50% ,rgba(0, 0, 0, 0.349) 50%) ;
    border: 1px solid #004D40;
    border-left: none;
    border-bottom: none;
    z-index: 2;
    /* This set the layer level of the element, it has precendence over initial level of 1 */
  }
  header .nav ul{
    flex-direction: column;
    position: absolute;
    top: 18rem;
  }
  header .nav ul li {
    margin-bottom: 2rem;
    
  }

  .menu-logo {
    display: none;
    position: fixed;
    z-index: 3;
  }

  .open-menu{
    display: block !important;
  }
}

@media only screen and (max-width: 500px){
  .container {
    width: 100vw !important;
    margin: 0 !important;
  }
  header .logo img{
    width: 15rem;
    margin: 2rem;
  }
  .btn-burger{
    margin: 0 1rem;
  }
  header .icon{
    margin-left: 2rem;
  }
  header .icon i{
    font-size: 2rem;
    margin-left: 0rem;
  }
}