/* The controls keep the canvas separate from touch and keyboard input. */
.assembly-art {
  row-gap: 14px;
}

@media (min-width: 761px) {
  .assembly-art {
    top: 8%;
    height: 76%;
  }
}

.assembly-caption {
  margin-inline: 12%;
}

.assembly-caption > #assembly-title {
  display: flex;
  align-items: flex-end;
  min-height: 2.7em;
  margin: 0 0 6px;
  font-size: clamp(14px, 1.3vw, 18px);
  line-height: 1.35;
}

.assembly-help {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.assembly-transport {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.assembly-play {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--button-radius, 12px);
  background: var(--accent);
  color: var(--bg);
  cursor: pointer;
  transition: background-color .2s ease;
}

.assembly-play:hover {
  background: #a7ebe5;
}

.assembly-play svg {
  display: none;
}

.assembly-play[data-state="play"] [data-icon="play"],
.assembly-play[data-state="pause"] [data-icon="pause"],
.assembly-play[data-state="replay"] [data-icon="replay"] {
  display: block;
}

.assembly-progress {
  --assembly-track: linear-gradient(90deg, var(--accent) var(--assembly-progress-fill, 0%), #526268 0);
  display: block;
  width: 100%;
  height: 44px;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

.assembly-progress::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: var(--assembly-track);
}

.assembly-progress::-moz-range-track {
  height: 4px;
  border-radius: 2px;
  background: var(--assembly-track);
}

.assembly-progress::-webkit-slider-thumb {
  width: 16px;
  height: 16px;
  margin-top: -6px;
  appearance: none;
  border: 2px solid var(--bg);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.assembly-progress::-moz-range-thumb {
  box-sizing: border-box;
  width: 16px;
  height: 16px;
  border: 2px solid var(--bg);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.assembly-steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 4px 0 0;
}

.assembly-steps button {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-width: 0;
  min-height: 44px;
  padding: 7px clamp(5px, .6vw, 12px);
  border: 1px solid #47565c;
  border-radius: var(--button-radius, 12px);
  background: #2d363a;
  color: #e4ecec;
  font-family: inherit;
  font-size: clamp(12px, 1.05vw, 15px);
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

.assembly-steps button[aria-pressed="true"]::before {
  content: none;
}

.assembly-steps button:hover {
  border-color: #83b5b4;
  background: #344548;
}

.assembly-steps button[aria-pressed="true"] {
  border-color: var(--accent);
  background: #304b4b;
  color: #edf9f8;
}

.assembly-play:focus-visible,
.assembly-progress:focus-visible,
.assembly-steps button:focus-visible {
  outline: 2px solid #e2f4f3;
  outline-offset: 3px;
}

.assembly-fallback {
  display: none;
  grid-row: 1;
  justify-self: center;
  width: min(100%, 400px);
  height: 100%;
  color: #a7ebe5;
}

.art-fallback .assembly-fallback,
body:not(.js) .assembly-fallback {
  display: block;
}

.art-fallback.assembly-art::before,
body:not(.js) .assembly-art::before {
  content: none;
}

.art-fallback .assembly-transport,
.art-fallback .assembly-steps,
body:not(.js) .assembly-art canvas,
body:not(.js) .assembly-transport,
body:not(.js) .assembly-steps {
  display: none;
}

@media (max-width: 480px), (min-width: 761px) and (max-width: 980px) {
  .assembly-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 760px) {
  .assembly-art {
    row-gap: 10px;
  }

  .assembly-caption {
    margin-inline: 8%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .assembly-play,
  .assembly-steps button {
    transition: none;
  }
}