*,
*:before,
*:after {
  box-sizing: border-box;
}

* {
  font-family: 'Lato', sans-serif;
}

a {
  color: #1772d0;
}

header {
  margin: 4em 0px 2em 0px;
}

body {
  max-width: 850px;
  margin: 0px auto;
}

body.wide {
  max-width: 86%;
}

h2 {
  font-weight: 400;
  margin-bottom: 0.3em;
}

h1 .title-main  {
  font-weight: 700;
  text-align: center;
  display: flex;
  justify-content: center;
  gap: 0.3em;
  /*margin-bottom: 0.2em;*/
}

h1 .title-main > img {
  display: block;
  height: 1.3em;
}
h1 .title-main > span {
  display: block;
  line-height: 1.3em;
}

h1 .title-small  {
  font-size: 0.8em;
  display: block;
  text-align: center;
  font-weight: 500;
}

header .conference {
  text-align: center;
  font-size: 1.4em;
  margin: -0.8em auto 1.5em auto;
  font-style: italic;
  color: #666;
}

figure {
  margin: 1rem 0px 2rem 0px;
}

.justify {
  text-align: justify;
}

.authors {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8em;
}

.authors > * {
  /*padding: 0px 1em;*/
  flex: 0 1 20ch;
  flex-basis: 17ch;
  margin: 0em 0px 0.8em 0px;
  max-width: 17ch;
}

.authors .author-name {
  font-weight: 700;
  font-size: 1.1em;
  display: block;
  text-align: center;
  margin-bottom: 0.2em;
}

.authors .author-name a {
  text-decoration: none;
  color: black;
}

.authors .author-name a:hover {
  color: #1772d0;
  transition: color 0.2s ease-in-out;
  text-decoration: underline;
}

.authors .author-affiliation {
  display: block;
  text-align: center;
}

.links {
  margin-top: 0.75em;
  margin-bottom: 1.75em;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1em;
}

.button .ti {
  margin-right: 0.3em;
}
.button {
  border-radius: 290486px;
  padding-left: calc(1em + .25em);
  padding-right: calc(1em + .25em);
  font-size: 1em;
  background-color: rgb(59 130 246);
  font-weight: 600;
  border-color: transparent;
  color: #fff;
  margin-top: 5px;
  margin-bottom: 5px;

  border-width: 1px;
  cursor: pointer;
  justify-content: center;
  padding-bottom: calc(.5em - 1px);
  padding-top: calc(.5em - 1px);
  text-align: center;
  white-space: nowrap;

  -moz-appearance: none;
  -webkit-appearance: none;
  align-items: center;
  border: 1px solid transparent;
  box-shadow: none;
  display: inline-flex;
  height: 2.5em;
  line-height: 1.5;
  position: relative;
  vertical-align: top;
  transition: background-color 0.2s ease-in-out;
}
a.button {
  text-decoration: none;
}
.button:hover {
  /* background-color: #1772d0; */
  /* use gray color for hover */
  background-color: #193769;
}


.video, .video-wrapper {
  position: relative;
  width: 100%;
}
.video-wrapper .video-label {
  width: 100%;
  position: absolute;
  top: 0px;
  display: flex;
  justify-content: space-between;
}
.video-wrapper .video-label > * {
  size: 1.5em;
  background-color: rgba(0, 0, 0, 0.4);
  font-weight: 700;
  height: 2.5em;
  padding: 0.5em;
  color: white;
}
.video-wrapper .video-label-with-fps > * {
  height: 3.5em;
}

.video-wrapper .video-label > *:last-child {
  text-align: right;
}

.video-fps {
  font-size: 0.8em;
  font-weight: 300;
  margin-top: 0.2em;
}

.video video,
.video iframe,
.video canvas {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
}

video.video-compare {
  opacity: 0;
  width: 100%;
}
canvas.video-compare {
  width: 100%;
  cursor: col-resize;
}

.abstract p {
  text-align: justify;
}

.references div {
  text-align: justify;
  font-size: 0.9em;
}

.citation {
  color: black;
}

pre {
  -webkit-overflow-scrolling: touch;
  overflow-x: auto;
  padding: 1.25em 1em;
  white-space: pre;
  word-wrap: normal;

  background-color: #f5f5f5;
  color: #4a4a4a;
  font-size: .875em;
  -moz-osx-font-smoothing: auto;
  -webkit-font-smoothing: auto;
  font-family: monospace;
  margin: 0.4em 0;
  display: block;
}

pre code {
  background-color: transparent;
  font-size: 1em;
  padding: 0;
  word-break: normal;
  font-weight: 400;
  -moz-osx-font-smoothing: auto;
  -webkit-font-smoothing: auto;
  font-family: monospace;
  word-wrap: break-word;
  white-space: break-spaces;
}

section {
  margin: 2em 0;
}

.slider {
  -webkit-appearance: none;
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background-color: #d3d3d3;
  outline: none;
  opacity: 0.7;
  -webkit-transition: .2s;
  transition: opacity .2s;
}


.slider:hover {
  opacity: 1;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: rgb(59 130 246);
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: rgb(59 130 246);
  cursor: pointer;
}

.slider-image {
  width:20%;
  position: relative;
  --active-weight: 0%;
  --current-color: color-mix(in srgb, rgb(59 130 246) var(--active-weight), #d3d3d3);
}

.slider-image::before {
  content: " ";
  position: relative;
  left: 50%;
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 10px solid var(--current-color);
  display: block;
  transform: translateX(-50%);
}

.slider-image > img {
  width: 100%;
  padding: 4px;
  border: 2px solid var(--current-color);
}

@media (max-width: 1016px) {
  .authors {
    margin: 0px auto;
    max-width: 70ch;
  }
  .authors > * {
    flex-basis: 18ch;
    max-width: 22ch;
  }
}

@media (max-width:1120px) {
  html {
    padding: 0px 80px;
  }
}

@media (max-width: 768px) {
  .github-corner {
    display: none;
  }

  html {
    padding: 0px 40px;
  }

  body {
    font-size: 14px;
  }

  .authors > * {
    flex: 1 1 0px;
    flex-basis: 17ch;
  }
}

@media (max-width: 400px) {
  html {
    padding: 0px 20px;
  }
  body {
    font-size: 12px;
  }
}