#canvas {
    width: 100vw !important;
    height: 100vh !important;
    display: block;
    position: fixed;
    top: 0;
    left: 0;
}

#version {
    color: darkgray;
    position: fixed;
    bottom: 2px;
    left: 2px;
    z-index: 1000;
}

#gui-container {
  position: fixed;
  top: 2px;
  right: 2px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  z-index: 1000;
}

#about {
    bottom: 0;
    left: 0;
    margin: 2px;
    position: absolute;
}
/* Loading Screen */
#loading-screen {
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000000;
    opacity: 1;
    transition: 1s opacity;
}

#loading-screen.fade-out {
    opacity: 0;
}

#loader {
    display: block;
    position: relative;
    left: 50%;
    top: 50%;
    width: 150px;
    height: 150px;
    margin: -75px 0 0 -75px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #FFFFFF;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

#loader:before {
    content: "";
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #FFFFFF;
    -webkit-animation: spin 3s linear infinite;
    animation: spin 3s linear infinite;
}

#loader:after {
    content: "";
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #FFFFFF;
    -webkit-animation: spin 1.5s linear infinite;
    animation: spin 1.5s linear infinite;
}

@-webkit-keyframes spin {

    0%   {
        -webkit-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        transform: rotate(360deg);
    }

}

@keyframes spin {

    0%   {
        -webkit-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        transform: rotate(360deg);
    }

}

video {
    display: none;
}