* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  background: #fff;
  color: #222;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 500;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

body {
  position: relative;
  width: 100vw;
  height: 100vh;
}

header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 32px;
  pointer-events: none;
}

#title {
  font-size: 18px;
  font-weight: 500;
}

#name {
  font-size: 18px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

main {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 100px;
  cursor: pointer;
}

#photo {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

main.hover-left {
  cursor: url('cursor-left.svg') 16 16, pointer;
}

main.hover-right {
  cursor: url('cursor-right.svg') 16 16, pointer;
}

#play-btn {
  position: absolute;
  bottom: 24px;
  left: 32px;
  z-index: 10;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: #999;
  width: 20px;
  height: 20px;
  transition: color 200ms ease;
}

#play-btn:hover {
  color: #333;
}

#play-btn svg {
  width: 100%;
  height: 100%;
  display: block;
}

#play-btn .icon-pause {
  display: none;
}

#play-btn.playing .icon-play {
  display: none;
}

#play-btn.playing .icon-pause {
  display: block;
}

footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  padding: 0 0 24px;
  text-align: center;
  pointer-events: none;
}

#coords {
  font-size: 11px;
  color: #aaa;
  text-decoration: none;
  transition: color 200ms ease;
  pointer-events: auto;
}

#coords:hover {
  color: #666;
  text-decoration: underline;
}

#coords:empty {
  display: none;
}

@media (max-width: 640px) {
  header {
    padding: 20px;
  }

  #title {
    font-size: 16px;
  }

  #name {
    font-size: 16px;
  }

  main {
    padding: 40px 16px;
  }

  main.hover-left,
  main.hover-right {
    cursor: pointer;
  }

  #play-btn {
    bottom: 20px;
    left: 20px;
  }
}