#site-header {

  z-index: var(--z-header);
  --gap: 3ch;

  position: fixed;
  top: 0;
  left: 0;

  width: 100vw;
  height: var(--header-h);
  background-color: var(--color-bg);
  padding: 0 var(--padding-body);

 box-shadow: -1px 4px 10px 0px var(--color-bg);

  .site-header__inner{
    width: 100%;
    height: 100%;


    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: calc(var(--gap)*0.25);
  }


  a{
    text-decoration: none;
    &:hover{
      color: var(--grey-200);
    }
  }


  #site-title {
    position: relative;
    top: -3px;

    width: 140px;

    svg{
      width: 100px;
      @media #{$small}{
        width: 80px;
      }
    }
  }


   #nav-highlight, 
   #nav-investigation{
      flex-grow: 2;
      ul{
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
         gap: var(--gap); 
           list-style-type: none;
               
      }
    }
    #nav-highlight ul{
         font-weight: 500;
        text-transform: uppercase;
     
    }


    #nav-investigation{
        position: absolute;
        // transition: top var(--transition-scroll);
        top: 10%;
        left: 0;
        display: flex;
        opacity: 0;
        // transform: translateY(-10px);
        transition: top 0.3s ease;
        pointer-events: none;

        li{ 
          color: var(--color-txt-light); 
          transition: color 0.3s ease;
        }

        li.is-selected{
          color: var(--color-txt);
          &:hover{
            color: var(--color-txt);
              pointer-events: none;
              a:hover{
                color: var(--color-txt);
              }
          }
        }
    }  



    &.has-nav-investigation{
      #nav-highlight{
        display: none;
      }
      #nav-investigation{
        position: relative;
        opacity: 1;
      transform: translateY(0);
      top: 0px;
      pointer-events: auto;
      }
    }




  #theme-toggle{
    width: var(--h-block);
    height: var(--h-block);
    display: flex;
    align-items: center;
    justify-content: center;
    svg{
      width: 18px;
      position: relative;
      top: -2px;
    
    }
  }

  #lang-toggle{
    display: flex;
    gap: 0.75ch;
    padding-right: 1.5ch;
    a{
      font-size: var(--fs-small);
      font-weight: 500;
    }
    button:disabled{ color: var(--color-txt-light); }
  }

  #menu-toggle{
    cursor: pointer;
    svg{
      width: 30px;
      fill: var(--color-txt);
    }
    .close{ display: none; }
  
  }

  button{
    
    &:hover{
      svg{ fill: var(--grey-200)!important; }
    }
  }

}




@media #{$medium}{
  #nav-highlight{
    display: none;
  }
}