:not(:defined) > * {
  display: none;
}
html, body {
  overflow: hidden;
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}
body {
  background-color: black;
  font-family: Roboto Regular, Helvetica Neue, sans-serif;
  font-weight: normal;
  color: #D7B38F;
}

model-viewer {
  position: absolute;
  left: 0px;
  right: 0px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  height: 75%;
  background-color: #000000;
}

.progress-bar {
  display: block;
  width: 33%;
  height: 10%;
  max-height: 2%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
  border-radius: 25px;
  box-shadow: 0px 3px 10px 3px rgba(255,255, 255, 0.5), 0px 0px 5px 1px rgba(255,255, 255, 0.6);
  border: 1px solid rgba(0, 0, 0, 0.9);
  background-color: rgba(255,255, 2550.5);
}

.progress-bar.hide {
  visibility: hidden;
  transition: visibility 0.3s;
}

.update-bar {
  background-color: rgba(0, 0, 0, 0.9);
  width: 0%;
  height: 100%;
  border-radius: 25px;
  float: left;
  transition: width 0.3s;
}

header h1 {
  text-align: center;
  margin: 1em auto;
  color: #D7B38F;
  text-shadow: #000000 2px 0 10px;
  font-family: Arual, sans-serif;
}

#model-title {
  position: absolute;
  bottom: 1em;
  padding: 0 1em;
  white-space: nowrap;
  font-size: 0.8em;
}

#ar-button {
  background-color: #000000;
  position: absolute;
  white-space: nowrap;
  bottom: 5em;
  left: 50%;
  transform: translateX(-50%);
  padding: 0 1em;
  font-size: 1em;
  color:#D7B38F;
  height: 2em;
  line-height: 2em;
  border-radius: 1em;
  border: 1px solid #D7B38F;
}

#ar-button:active {
  background-color: #E8EAED;
}

#ar-button:focus {
  outline: none;
}

#ar-button:focus-visible {
  outline: 1px solid #4285f4;
}

@keyframes circle {
  from { transform: translateX(-50%) rotate(0deg) translateX(50px) rotate(0deg); }
  to   { transform: translateX(-50%) rotate(360deg) translateX(50px) rotate(-360deg); }
}

@keyframes elongate {
  from { transform: translateX(100px); }
  to   { transform: translateX(-100px); }
}

model-viewer > #ar-prompt {
  position: absolute;
  left: 50%;
  bottom: 60px;
  animation: elongate 2s infinite ease-in-out alternate;
  display: none;
}

model-viewer[ar-status="session-started"] > #ar-prompt {
  display: block;
}

model-viewer > #ar-prompt > img {
  animation: circle 4s linear infinite;
}