:not(:defined) > * {
  display: none;
}

html {
  height: 100%;
}

body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

model-viewer {
  width: 100%;
  height: 90%;
  background-color: #ffffff;
}


.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(0, 0, 0, 0.5), 0px 0px 5px 1px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.9);
  background-color: rgba(0, 0, 0, 0.5);
}

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

.update-bar {
  background-color: rgba(255, 255, 255, 0.9);
  width: 0%;
  height: 100%;
  border-radius: 25px;
  float: left;
  transition: width 0.3s;
}

.ar-prompt {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 24px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: none;
}

model-viewer[ar-status="not-presenting"] .ar-prompt {
    display: block;
}