:root {
  --bg: #cfcfcf;
  --rail-left: 5vw;
  --rail-right: 7.5vw;
}

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

html,
body {
  height: 100%;
}

body {
  font-family: "Slabo 13px", Georgia, serif;
  font-size: 8pt;
  line-height: 1em;
  background: var(--bg);
  color: #000;
  overflow: hidden;
}

#stage {
  position: fixed;
  inset: 0;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

#track {
  display: flex;
  width: 400%;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.77, 0, 0.18, 1);
  will-change: transform;
}

.panel {
  position: relative;
  width: 25%;
  height: 100%;
  overflow: hidden;
}

.panel-scroll {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  outline: none;
}

.panel-scroll::-webkit-scrollbar {
  display: none;
}

.content {
  position: relative;
  margin-left: var(--rail-left);
  margin-right: var(--rail-right);
  padding: 1rem 0;
}

.artwork {
  display: block;
  width: 100%;
  aspect-ratio: 1920 / 8000;
  -webkit-user-drag: none;
}

.rail {
  position: fixed;
  top: 0;
  bottom: 0;
  z-index: 50;
  --rail-bg: var(--bg);
  --rail-fg: #000;
  background: var(--rail-bg);
  color: var(--rail-fg);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.rail:hover {
  --rail-bg: #000;
  --rail-fg: var(--bg);
}

.rail.disabled {
  pointer-events: none;
  cursor: default;
}

.rail-left {
  left: 0;
  width: var(--rail-left);
}

.rail-right {
  right: 0;
  width: var(--rail-right);
}

.column {
  position: absolute;
  top: 0;
  height: 100%;
  overflow: hidden;
  line-height: 1em;
  font-feature-settings: "tnum";
  white-space: nowrap;
}

.rail-left .column {
  right: 0.5rem;
  text-align: right;
}

.rail-right .column {
  left: 0.5rem;
  text-align: left;
}

.column span {
  display: block;
  height: 1em;
}

.column::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6rem;
  background: linear-gradient(rgba(0, 0, 0, 0), var(--rail-bg));
}

#copy {
  position: absolute;
  top: 1rem;
  left: 0.5rem;
  right: 1rem;
  z-index: 2;
  background: var(--rail-bg);
  color: var(--rail-fg);
  padding: 0.5rem;
  text-align: right;
  transition: opacity 0.25s ease, background 0.15s ease, color 0.15s ease;
}

#copy.fading {
  opacity: 0;
}

.rail-sound {
  position: fixed;
  left: 0.25rem;
  bottom: 1rem;
  z-index: 60;
  font: inherit;
  font-size: 8pt;
  line-height: 1em;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: #000;
  padding: 0.25rem 0.5rem;
}

.rail-sound:hover {
  background: #000;
  color: var(--bg);
}

.suitcase {
  position: absolute;
  left: 50%;
  top: 20vh;
  transform: translateX(-50%);
  width: clamp(220px, 26vw, 420px);
  aspect-ratio: 582 / 343;
  z-index: 4;
  -webkit-user-drag: none;
}

#suitcase-closed {
  opacity: 1;
  pointer-events: auto;
  cursor: pointer;
  transition: opacity 0.45s ease;
}

#suitcase-open {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

#final-stage {
  position: absolute;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  width: 60%;
  aspect-ratio: 3300 / 5100;
  z-index: 2;
  pointer-events: none;
}

#w4-camera {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  display: none;
}

#w4-camera.live {
  display: block;
}

#w4-final-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s ease;
  -webkit-user-drag: none;
}

#w4-final-poster.visible {
  opacity: 1;
}

#w4-canvas-host {
  position: absolute;
  inset: 0;
  z-index: 3;
}

#w4-canvas-host canvas {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
}