body {
  margin: 0;
  font-family: sans-serif;
  background: #111;
  color: white;
}

section,
.spacer {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
}

#three-container {
  position: relative;
  width: 100%;
  height: 100vh;
  background: #000;
}

canvas#webgl {
  width: 100%;
  height: 100%;
  display: block;
}

#youtube-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
}

#youtube-frame {
  position: absolute;
  z-index: 3;
  /* pointer-events: auto; */
  pointer-events: none;
}

#loading-screen {
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  width: 150px;
  height: 150px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: #546e7a;
  animation: spin 2s linear infinite;
  z-index: 5;
}

#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: #546e7a;
    -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: #ef6c00;
    -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: #546e7a;
    -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);
    }
}