#header{
  display: grid;
  position: fixed;
  z-index: 2;
  top: 0; left: 0; right: 0;
  border-bottom: 2px solid black;
  background-color: rgba(255, 255, 255, 0);
  transition: backdrop-filter 0.7s linear, background-color 0.7s linear;
  user-select: none;
  box-shadow: 0 1px 2px #00000088;
}
.headerScrollDownPage, #navigation_panel{
  backdrop-filter: blur(5px);
  /*background-color: rgba(255, 255, 255, 0.5);*/
}
#logo_astdov{
  grid-column: 1;
  max-width: 3em;
  max-height: 3em;
  align-self: center;
  transition: background-color 0.25s linear;
  filter: drop-shadow(0 1px 2px #00000088);
}
@media (hover: hover){
  #logo_astdov:hover{
    background-color: rgba(32, 32, 32, 0.3);
  }
  #header_nav-buttons button:hover, #navigation_panel div a:hover{
    background-color: rgba(32, 32, 32, 0.3);
    transition: background-color 0.25s linear;
  }
}
#logo_astdov:active{
  transition: background-color 0s linear;
  background-color: rgba(32, 32, 32, 0.5);
}
#header_nav-buttons{
  justify-self: right;
  grid-column: 2;
}
#header_nav-buttons button{
  height: 100%;
}
#header_nav-buttons button, #navigation_panel div a{
  background-color: rgba(32, 32, 32, 0);
  color: black;
  transition: background-color 0.25s linear;
  border: none;
  filter: drop-shadow(0 1px 2px #00000088);
}

#header_nav-buttons button:active, #navigation_panel div a:active{
  transition: background-color 0s linear;
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
}
#navigation_panel{
  border-right: 2px solid black;
  box-shadow: 1px 0 2px #00000088;
  z-index: 1;
  position: fixed;
  left: 0;
  top: _header_height;
  bottom: 0;
  transform: translate(-100%, 0);
  display: none;
  transition: transform 0.5s ease-in-out;
}
#navigation_panel div, #navigation_panel div a{
  padding-top: 1vh;
  padding-bottom: 1vh;
}
#navigation_panel div a{
  user-select: none;
  text-decoration: none;
  padding-left: 3vh;
  padding-right: 3vh;
}
@media(prefers-color-scheme: dark){
  #header{
    background-color: rgba(0, 0, 0, 0);
  }
  #header, #navigation_panel{
    border-color: #55FE55;
  }
  /*.headerScrollDownPage, #navigation_panel{
    background-color: rgba(0, 0, 0, 0.5);
  }*/
  @media (hover: hover){
    #logo_astdov:hover{
      background-color: rgba(85, 254, 85, 0.3);
      color: black
    }
    #header_nav-buttons button:hover, #navigation_panel div a:hover{
      background-color: rgba(141, 141, 141, 0.3);
    }
  }
  #logo_astdov:active{
    transition: background-color 0s linear;
    background-color: rgba(80, 249, 80, 0.5);
  }
  #header_nav-buttons button, #navigation_panel div a{
    color: #55FE55;
  }
  
  #header_nav-buttons button:active, #navigation_panel div a:active{
    transition: background-color 0s linear;
    background-color: rgba(136, 136, 136, 0.5);
    color: rgb(80, 249, 80);
  }
}
@media (max-aspect-ratio: 0.9){
  #navigation_panel{
    width: 100%;
  }
  #navigation_panel div a, #navigation_panel div{
    width: 100%;
  }
}