html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.li {
  display: flex;
  justify-content: center;
  width: 100%;
}

.li__card {
  width: min(100%, 340px);
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  overflow: hidden;
}

.li__layers {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: #17141a;
  padding: 8px 12px;
}

.li__row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.li__layer, .li__merge {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  flex: 0 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: transparent;
  color: #ffffff;
  border-radius: 999px;
  font-family: inherit;
  font-weight: 700;
  font-size: clamp(9px, 2.4vw, 10px);
  padding: 4px 8px;
  line-height: 1.3;
}

.li__layer[aria-pressed=true] {
  background: #2f6df6;
  border-color: #2f6df6;
}

.li__layer:focus-visible, .li__merge:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 2px;
}

.li__ico {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.li__slot {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  min-width: 0;
}

.li__range {
  width: 100%;
  height: 12px;
  margin: 0;
  cursor: pointer;
  accent-color: #2f6df6;
}

.li__range:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 2px;
}

.li__fake {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 4px;
  transform: translateY(-50%);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
}

.li__fakeFill {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #2f6df6;
  transform-origin: left center;
  transform: scaleX(0.34);
}

.li__fakeKnob {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  transform: translateX(34%);
}

.li__fakeKnob::after {
  content: "";
  position: absolute;
  left: -4px;
  top: -2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
}

.li__board {
  position: relative;
  background: #fff7e6;
  aspect-ratio: 300/88;
  touch-action: none;
}

.li__sketch, .li__ink, .li__ghost {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.li__sketch {
  opacity: 0.34;
}

.li__ghost {
  display: none;
  fill: none;
}

.li__guide {
  opacity: 0.34;
}

.li__guideCurve {
  stroke: rgba(23, 20, 26, 0.55);
  stroke-width: 5;
  stroke-linecap: round;
}

.li__guideRing {
  stroke: rgba(23, 20, 26, 0.55);
  stroke-width: 3;
  stroke-dasharray: 6 5;
}

.li__guideBase {
  stroke: rgba(23, 20, 26, 0.55);
  stroke-width: 3;
  stroke-dasharray: 6 5;
}

.li__trace {
  stroke: #17141a;
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100.5;
}

.li__finish {
  stroke: #17141a;
  stroke-width: 9;
  stroke-linecap: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100.5;
}

.li.is-demo .li__sketch, .li.is-demo .li__ink {
  visibility: hidden;
}

.li.is-demo .li__ghost {
  display: block;
}

.li.is-demo .li__range {
  visibility: hidden;
}

.li.is-demo .li__fake {
  display: block;
}

.li.is-demo .li__trace {
  animation-name: liTrace;
  animation-duration: 2s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

@keyframes liTrace {
  0%, 8% {
    stroke-dashoffset: 100.5;
  }
  44%, 72% {
    stroke-dashoffset: 0;
  }
  88%, 100% {
    stroke-dashoffset: 100.5;
  }
}
.li.is-demo .li__finish {
  animation-name: liFinish;
  animation-duration: 2s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

@keyframes liFinish {
  0%, 46% {
    stroke-dashoffset: 100.5;
  }
  50%, 66% {
    stroke-dashoffset: 0;
  }
  80%, 100% {
    stroke-dashoffset: 100.5;
  }
}
.li.is-demo .li__guide {
  animation-name: liFade;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

@keyframes liFade {
  0%, 54% {
    opacity: 0.34;
  }
  68%, 74% {
    opacity: 0;
  }
  88%, 100% {
    opacity: 0.34;
  }
}
.li.is-demo .li__fakeKnob {
  animation-name: liKnob;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

@keyframes liKnob {
  0%, 54% {
    transform: translateX(34%);
  }
  68%, 74% {
    transform: translateX(0);
  }
  88%, 100% {
    transform: translateX(34%);
  }
}
.li.is-demo .li__fakeFill {
  animation-name: liFill;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

@keyframes liFill {
  0%, 54% {
    transform: scaleX(0.34);
  }
  68%, 74% {
    transform: scaleX(0);
  }
  88%, 100% {
    transform: scaleX(0.34);
  }
}
@media (max-width: 340px) {
  .li__layers {
    padding: 4px 8px;
  }
  .li__row {
    gap: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .li.is-demo .li__trace,
  .li.is-demo .li__finish,
  .li.is-demo .li__guide,
  .li.is-demo .li__fakeKnob,
  .li.is-demo .li__fakeFill {
    animation: none !important;
  }
  .li.is-demo .li__trace,
  .li.is-demo .li__finish {
    stroke-dashoffset: 0 !important;
  }
  .li.is-demo .li__guide {
    opacity: 0 !important;
  }
  .li.is-demo .li__fakeKnob {
    transform: translateX(0) !important;
  }
  .li.is-demo .li__fakeFill {
    transform: scaleX(0) !important;
  }
}