html, body {
  height: 100vh;
  margin: 0;
}

body {
  background-color: black;
  background-image: url('../media/textures/splash.jpg');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  font: 1rem/1.4 -apple-system, BlinkMacSystemFont,
    Segoe UI, Roboto, Oxygen,
    Ubuntu, Cantarell, Fira Sans,
    Droid Sans, Helvetica Neue, sans-serif;
  color: #DEDEDE;
}

body.ar {
  background-color: transparent;
}

a {
  color: #9999DE;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1 {
  text-align: center;
}

article {
  margin: 0;
}

article.hidden {
  display: none;
}

#landingPage {
  margin: 0;
  height: 100vh;
}

/*
 * Dinosaur selection menu
 */

#dinosaurSelection .button-bar {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(0.0, 0.0, 0.0, 0.7);
}

#closeSelection {
  margin: 1em;
  float: right;
  text-indent: -9999px;
  width: 32px;
  height: 32px;
  background-image: url('../media/textures/close-icon.svg');
  background-color: transparent;
  border: 0;
}

#arScale {
  margin: 1em;
  float: right;
}

#dinosaurSelection #arScale {
  display: none;
}

#dinosaurSelection.ar #arScale {
  display: inline;
}

#dinosaurSelection {
  position: absolute;
  z-index: 9999;
  left: 0;
  top: 0;
  padding: 0;
  margin: 0;
  width: 100%;
  transform: translateX(0);
  background-color: black;
  transition: all 0.5s;
  font-size: 0.9em;
}

#dinosaurSelection.hidden {
  display: block;
  transform: translateX(-100%);
}

#dinosaurSelection .menu {
  margin: auto;
  max-width: 968px;
  margin-top: 48px;
}

#dinosaurSelection li {
  min-height: 128px;
}

#dinosaurSelection li:before {
  display: block;
  float: left;
  width: 128px;
  height: 128px;
  content: '';
  background-image: url('../media/textures/button-atlas.png');
  background-repeat: no-repeat;
  background-size: 400%;
}

li[data-dinosaur="ankylosaurus"]:before {
  background-position: 0 0;
}

li[data-dinosaur="brachiosaurus"]:before {
  background-position: -128px 0;
}

li[data-dinosaur="dilophosaurus"]:before {
  background-position: 0px -384px;
}

li[data-dinosaur="raptor"]:before {
  background-position: -384px -128px;
}

li[data-dinosaur="triceratops"]:before {
  background-position: -128px -128px;
}

li[data-dinosaur="parasaurolophus"]:before {
  background-position: -384px 0;
}

li[data-dinosaur="pachycephalosaurus"]:before {
  background-position: -256px 0;
}

li[data-dinosaur="spinosaurus"]:before {
  background-position: -128px -384px;
}

li[data-dinosaur="stegosaurus"]:before {
  background-position: 0 -128px;
}

li[data-dinosaur="trex"]:before {
  background-position: -256px -128px;
}

/*
 *
 */

#canvasContainer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

#canvasContainer .button-bar {
  display: block;
  position: fixed;
  z-index: 10;
  height: 64px;
  top: 0;
  left: 0;
  width: 100%;
  background-image: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.5) 80%, rgba(0,0,0,0) 100%);
}

#canvasContainer .button-bar>button {
  margin: 1em;
  background-color: transparent;
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  text-indent: -9999px;
  width: 32px;
  height: 32px;
  border: 0;
  cursor: pointer;
}

#canvasContainer .button-bar>button.hidden {
  display: none;
}

.ar #canvasContainer canvas {
  display: none;
}

#showSelection {
  background-image: url('../media/textures/back-icon.svg');
}

#showDinosaurVR {
  float: right;
  background-image: url('../media/textures/vr-icon.svg');
}

#showDinosaurAR {
  float: right;
  background-image: url('../media/textures/ar-icon.svg');
}

body.ar #showDinosaurVR {
  display: none;
}

body.ar #showDinosaurAR {
  background-image: url('../media/textures/ar-exit-icon.svg');
}

body.vr #showDinosaurVR {
  background-image: url('../media/textures/vr-exit-icon.svg');
}

body.vr #showDinosaurAR {
  display: none
}

/*
 *
 */

.dg.main {
  position: absolute;
  z-index: 100;
  top: 1em;
  right: 1em;
}

header {
  display: block;
  min-height: 50%;
  padding: 0 1em 0 1em;
}

header h1 {
  margin: 0;
  background-image: url('../media/textures/title.png');
  min-width: 100%;
  max-width: 968px;
  height: 200px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  overflow: hidden;
  text-indent:-99999em;
}

header section {
  position: relative;
  background-color: rgba(0.3, 0.3, 0.3, 0.7);
  margin: auto;
  max-width: 786px;
  padding: 1em;
  border-radius: 5px;
}

header h2 {
  margin-top: 0.5em;
  text-align: center;
}

main {
  padding: 1em;
  margin: 1em auto;
  background-color: rgba(0.3, 0.3, 0.3, 0.7);
  border-radius: 5px;
  max-width: 786px;
  max-height: 1000px;
  overflow: hidden;
  transition: all 1s;
}

main.loading {
  background-color: transparent;
  max-height: 80px;
}

main>.lds-ellipsis {
  display: none;
}

main.loading>.lds-ellipsis {
  display: block;
  margin: auto;
}

#canvasContainer>.lds-ellipsis {
  display: none;
}

#canvasContainer.loading>.lds-ellipsis {
  display: block;
  margin: auto;
  margin-top: 25%;
}

.loading .main-menu {
  margin: 0;
  height: 0px;
}

.main-menu {
  margin: auto;
  max-width: 786px;
  transition: all 1s;
}

ul.menu {
  list-style: none;
  padding: 0;
}

ul.menu>li {
  font-size: 1.8em;
  padding: 0.5em;
  min-height: 3em;
  transition: color 0.5s;
}

ul.menu>li>p {
  font-size: 0.6em;
}

ul.menu>li:hover {
  cursor: pointer;
  color: rgb(80,168,252);
}

ul.menu>li:not(:last-child) {
  border-bottom: 1px solid grey;
}

ul.menu>li:before {
  margin-right: 0.5em;
  width: 3em;
}

ul.menu>li.disabled {
  color: rgb(90,90,90);
}

ul.menu>li.disabled:hover {
  color: rgb(80,80,120);
}

#view2DButton:before {
  content: url('../media/textures/browser-icon.svg');
}

#viewVRButton:before {
  content: url('../media/textures/vr-icon.svg');
}

#viewVRButton.disabled:before {
  content: url('../media/textures/vr-error-icon.svg');
}

#viewARButton:before {
  content: url('../media/textures/ar-icon.svg');
}

#viewARButton.disabled:before {
  content: url('../media/textures/ar-error-icon.svg');
}

footer {
  font-size: 0.8em;
  border-top: 1px solid grey;
  padding: 1em;
  margin: 0;
  height: 10em;
}

canvas {
  position: absolute;
  z-index: 0;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  touch-action: none;
}

#showSelection {
  position: absolute;
  z-index: 1;
}

.webxr-experience {
  width: 50%;
  float: left;
}

.webxr-experience::before {
  float: left;
  padding-right: 0.5em;
  content: url('../media/textures/webxr-32.png');
}

.source-link {
  display: block;
  margin-bottom: 0.75em;
}

.credits {
  text-align: right;
  float: right;
  width: 50%;
}

.credits ul {
  list-style: none;
  padding: 0;
  margin-top: 0;
}

.credits li {
  display: inline;
}

.credits li:not(:last-child)::after {
  padding-left: 0.25em;
  content: '·';
}

.screenshot-list {
  display: block;
  position: absolute;
  z-index: 10000;
  top: 10px;
  left: 10px;

}
.screenshot {
  float: left;
  height: 64px;
}

footer h3 {
  margin-top: 7em;
  text-align: center;
}

#mainLoader {
  display: block;
  margin: 2em auto;
}

/* Loading spinner from https://loading.io/css/ */

.lds-ellipsis {
  display: inline-block;
  position: relative;
  width: 80px;
  height: 80px;
}
.lds-ellipsis div {
  position: absolute;
  top: 33px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #fff;
  animation-timing-function: cubic-bezier(0, 1, 1, 0);
}
.lds-ellipsis div:nth-child(1) {
  left: 8px;
  animation: lds-ellipsis1 0.6s infinite;
}
.lds-ellipsis div:nth-child(2) {
  left: 8px;
  animation: lds-ellipsis2 0.6s infinite;
}
.lds-ellipsis div:nth-child(3) {
  left: 32px;
  animation: lds-ellipsis2 0.6s infinite;
}
.lds-ellipsis div:nth-child(4) {
  left: 56px;
  animation: lds-ellipsis3 0.6s infinite;
}
@keyframes lds-ellipsis1 {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes lds-ellipsis3 {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(0);
  }
}
@keyframes lds-ellipsis2 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(24px, 0);
  }
}