:root {
  color-scheme: light dark;
  /* The drawer's centre once dragged. A docked drawer uses only the axis
     along its edge, so it starts in the middle of the bottom. */
  --drawer-x: 50%;
  --drawer-y: 50%;
  --drawer-gap: 8px;
  /* Clears the iPhone home indicator, which viewport-fit=cover leaves the
     page to avoid. */
  --drawer-bottom: env(safe-area-inset-bottom, 0px);
  --hosted-bg: #1d1d1d;
  --hosted-fg: #f4f4f4;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--hosted-bg);
  color: var(--hosted-fg);
  font:
    14px/1.5 -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
}

#rive-stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas[data-src] {
  display: block;
  width: 100%;
  height: 100%;
  /* The scene draws its own background; until it loads this stays flat. */
  outline: none;
}

#rive-status {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
  transition: opacity 200ms ease;
}

#rive-status[hidden] {
  display: none;
}

#rive-status .spinner {
  width: 28px;
  height: 28px;
  border: 2px solid rgba(244, 244, 244, 0.25);
  border-top-color: var(--hosted-fg);
  border-radius: 50%;
  animation: rive-spin 700ms linear infinite;
}

#rive-status .message {
  max-width: 32ch;
  text-align: center;
  opacity: 0.75;
}

#rive-status.error .spinner {
  display: none;
}

@keyframes rive-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  #rive-status .spinner {
    animation-duration: 2s;
  }
}

/* Docked to the bottom by default, or to the left or right edge, or floating,
   as dragging sets --drawer-x, --drawer-y and data-side. Hidden slides it off
   its edge, leaving the lip, and .peek brings it back over the lip. The bar is
   drawn by drawer.riv. Every position is a left and top plus a transform. */
#rive-drawer {
  position: fixed;
  top: calc(100% - var(--drawer-gap) - var(--drawer-bottom));
  left: var(--drawer-x);
  line-height: 0;
  /* Or a touch drag on the grip scrolls the page instead of moving the
     drawer. */
  touch-action: none;
  user-select: none;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.35));
  transform: translate(-50%, -100%);
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

#rive-drawer.offstage,
#rive-drawer.hidden:not(.peek) {
  transform: translate(-50%, calc(var(--drawer-gap) + var(--drawer-bottom)));
}

#rive-drawer[data-side='left'] {
  top: var(--drawer-y);
  left: var(--drawer-gap);
  transform: translate(0, -50%);
}

#rive-drawer[data-side='right'] {
  top: var(--drawer-y);
  left: calc(100% - var(--drawer-gap));
  transform: translate(-100%, -50%);
}

/* Where it was dropped, away from every edge. */
#rive-drawer[data-side='float'] {
  top: var(--drawer-y);
  transform: translate(-50%, -50%);
}

#rive-drawer[data-side='left'].offstage,
#rive-drawer[data-side='left'].hidden:not(.peek) {
  transform: translate(calc(-100% - var(--drawer-gap)), -50%);
}

#rive-drawer[data-side='right'].offstage,
#rive-drawer[data-side='right'].hidden:not(.peek) {
  transform: translate(var(--drawer-gap), -50%);
}

#rive-drawer.dragging {
  transition: none;
}

#rive-drawer canvas {
  display: block;
  cursor: pointer;
}

#rive-drawer.on-grip canvas {
  cursor: grab;
}

#rive-drawer.dragging canvas {
  cursor: grabbing;
}

/* Centred over the hovered button; hosted.js sets left from the drawer's
   tipX. */
#rive-drawer-tip {
  position: absolute;
  bottom: calc(100% + 8px);
  padding: 3px 8px;
  font-size: 12px;
  line-height: 18px;
  white-space: nowrap;
  color: var(--hosted-fg);
  border: 1px solid rgba(244, 244, 244, 0.1);
  border-radius: 5px;
  background: rgba(30, 30, 30, 0.92);
  opacity: 0;
  transform: translate(-50%, 4px);
  pointer-events: none;
  transition:
    opacity 120ms ease,
    transform 120ms ease;
}

#rive-drawer-tip.shown {
  opacity: 1;
  transform: translate(-50%, 0);
}

#rive-drawer.tips-below #rive-drawer-tip {
  top: calc(100% + 8px);
  bottom: auto;
}

/* What a hidden drawer leaves on its edge, where it was. The box is the tap
   target and the ::before the tab a visitor sees. Gone under a peek, where
   the bar itself is in its place. */
#rive-drawer-lip {
  position: fixed;
  bottom: var(--drawer-bottom);
  left: var(--drawer-x);
  display: none;
  width: 56px;
  height: 32px;
  cursor: pointer;
  transform: translateX(-50%);
}

#rive-drawer-lip::before {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 32px;
  height: 4px;
  border-radius: 2px;
  background: rgba(244, 244, 244, 0.5);
  /* Keeps it visible on a light scene too. */
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3);
  transform: translateX(-50%);
  transition: background-color 120ms ease;
}

#rive-drawer-lip:hover::before {
  background: rgba(244, 244, 244, 0.9);
}

#rive-drawer.hidden:not(.peek) ~ #rive-drawer-lip {
  display: block;
}

#rive-drawer[data-side='left'] ~ #rive-drawer-lip,
#rive-drawer[data-side='right'] ~ #rive-drawer-lip {
  top: var(--drawer-y);
  bottom: auto;
  width: 32px;
  height: 56px;
  transform: translateY(-50%);
}

#rive-drawer[data-side='left'] ~ #rive-drawer-lip {
  left: 0;
}

#rive-drawer[data-side='right'] ~ #rive-drawer-lip {
  right: 0;
  left: auto;
}

#rive-drawer[data-side='left'] ~ #rive-drawer-lip::before,
#rive-drawer[data-side='right'] ~ #rive-drawer-lip::before {
  top: 50%;
  bottom: auto;
  width: 4px;
  height: 32px;
  transform: translateY(-50%);
}

#rive-drawer[data-side='left'] ~ #rive-drawer-lip::before {
  left: 4px;
}

#rive-drawer[data-side='right'] ~ #rive-drawer-lip::before {
  right: 4px;
  left: auto;
}

@media (prefers-reduced-motion: reduce) {
  #rive-drawer,
  #rive-drawer-tip {
    transition: none;
  }
}