.presentation_resource {
  margin-top: 38px;
}

.presentation_viewer {
  width: min(1060px, 100%);
  margin: 2px auto 0;
  overflow: hidden;
  border: 1px solid rgba(23, 32, 39, .22);
  background: #17232b;
  color: #f5f4f0;
  box-shadow: 0 22px 56px rgba(23, 32, 39, .15);
}

.presentation_viewer:focus-visible,
.presentation_viewer button:focus-visible {
  outline: 3px solid #a8d6e6;
  outline-offset: 3px;
}

.presentation_topbar,
.presentation_toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 22px;
}

.presentation_topbar {
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.13);
}

.presentation_eyebrow,
.presentation_count {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.presentation_count {
  color: #adc6cf;
}

.presentation_stage {
  position: relative;
  width: 100%;
  height: min(70vh, 730px);
  min-height: 250px;
  padding: clamp(12px, 3vw, 26px);
  display: grid;
  place-items: center;
  overflow: hidden;
  touch-action: pan-y;
  background: radial-gradient(circle at 50% 40%, #405461, #1c2b34 70%);
}

.presentation_stage canvas {
  display: none;
  max-width: 100%;
  max-height: 100%;
  background: #fff;
  box-shadow: 0 12px 34px rgba(0,0,0,.4);
}

.presentation_stage canvas.is_ready {
  display: block;
}

.presentation_message {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  color: #e4eaec;
  text-align: center;
  line-height: 1.5;
}

.presentation_message[hidden] {
  display: none;
}

.presentation_toolbar {
  justify-content: center;
  border-top: 1px solid rgba(255,255,255,.13);
}

.presentation_button,
.presentation_fullscreen {
  min-height: 42px;
  border: 1px solid rgba(255,255,255,.32);
  background: transparent;
  color: #fff;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease;
}

.presentation_button {
  width: 46px;
  font-size: 1.4rem;
  line-height: 1;
}

.presentation_fullscreen {
  margin-left: auto;
  padding: 0 18px;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.presentation_button:hover:not(:disabled),
.presentation_fullscreen:hover {
  border-color: #bed8e1;
  background: rgba(255,255,255,.13);
}

.presentation_button:disabled {
  opacity: .35;
  cursor: default;
}

.presentation_status {
  min-width: 106px;
  text-align: center;
  font-size: .83rem;
  font-weight: 700;
}

.presentation_thumbnails {
  display: flex;
  gap: 10px;
  min-height: 140px;
  overflow-x: auto;
  padding: 4px 22px 20px;
  scrollbar-color: #7797a4 #17232b;
}

.presentation_thumbnail {
  flex: 0 0 116px;
  padding: 5px;
  border: 2px solid transparent;
  background: #344a56;
  color: #fff;
  cursor: pointer;
}

.presentation_thumbnail[aria-current="true"] {
  border-color: #c1dfe7;
}

.presentation_thumbnail canvas {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #fff;
}

.presentation_thumbnail span {
  display: block;
  margin-top: 4px;
  font-size: .68rem;
  font-weight: 700;
}

.presentation_viewer:fullscreen {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  border: 0;
}

.presentation_viewer:fullscreen .presentation_stage {
  flex: 1;
  height: auto;
  min-height: 0;
}

@media (max-width: 650px) {
  .presentation_stage {
    height: auto;
    min-height: 0;
    aspect-ratio: 4 / 3;
    padding: 10px;
  }

  .presentation_toolbar {
    gap: 8px;
    padding: 12px;
  }

  .presentation_fullscreen {
    padding: 0 9px;
    font-size: .62rem;
  }

  .presentation_status {
    min-width: 86px;
    font-size: .74rem;
  }

  .presentation_thumbnail {
    flex-basis: 88px;
  }

  .presentation_thumbnails {
    min-height: 112px;
    padding: 4px 12px 14px;
  }

  .presentation_viewer:fullscreen .presentation_stage {
    height: auto;
    aspect-ratio: auto;
  }
}