:root {
  color-scheme: light dark;
  font-family: "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  background: transparent;
}

* {
  box-sizing: border-box;
  user-select: none;
  -webkit-user-select: none;
}

html,
body {
  width: 192px;
  height: 288px;
  margin: 0;
  overflow: hidden;
  background: transparent;
}

body {
  cursor: grab;
}

body.dragging {
  cursor: grabbing;
}

#pet {
  position: relative;
  width: 192px;
  height: 288px;
  opacity: 0;
  transition: opacity 120ms ease;
}

#pet.visible {
  opacity: var(--pet-opacity, 1);
}

#sprite {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 192px;
  height: 208px;
  background-image: var(--pet-sprite-url);
  background-repeat: no-repeat;
  background-size: var(--pet-sheet-width) var(--pet-sheet-height);
  background-position-y: calc(var(--pet-row) * -208px);
  image-rendering: pixelated;
  filter: drop-shadow(0 8px 9px rgb(0 0 0 / 0.2));
  animation: pet-frames var(--pet-duration) steps(var(--pet-frames)) infinite;
}

#bubble {
  position: absolute;
  top: 11px;
  right: 8px;
  z-index: 2;
  max-width: 172px;
  min-height: 32px;
  padding: 7px 10px;
  border: 1px solid rgb(120 120 130 / 0.24);
  border-radius: 7px;
  background: rgb(255 255 255 / 0.94);
  color: #18181b;
  font-size: 12px;
  line-height: 1.35;
  opacity: 0;
  transform: translateY(3px);
  transition:
    opacity 140ms ease,
    transform 140ms ease;
  box-shadow: 0 5px 16px rgb(0 0 0 / 0.14);
}

#bubble.visible {
  opacity: 1;
  transform: translateY(0);
}

#bubble::after {
  position: absolute;
  right: 23px;
  bottom: -6px;
  width: 10px;
  height: 10px;
  border-right: 1px solid rgb(120 120 130 / 0.24);
  border-bottom: 1px solid rgb(120 120 130 / 0.24);
  background: inherit;
  content: "";
  transform: rotate(45deg);
}

@media (prefers-color-scheme: dark) {
  #bubble {
    border-color: rgb(255 255 255 / 0.14);
    background: rgb(24 24 27 / 0.94);
    color: #fafafa;
  }

  #bubble::after {
    border-color: rgb(255 255 255 / 0.14);
  }
}

@keyframes pet-frames {
  from {
    background-position-x: 0;
  }

  to {
    background-position-x: calc(var(--pet-frames) * -192px);
  }
}