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);
}

.scene {
  display: grid;
  justify-items: center;
  gap: 12px;
}

.scene__check {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.scene__frame {
  position: relative;
  width: min(320px, 90vw);
  height: clamp(96px, 50vh, 172px);
  border-radius: 16px;
  overflow: hidden;
}

.scene__inner {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transition: opacity 220ms linear calc(1s / 2);
}

.scene__inner--a {
  background: linear-gradient(140deg, #2f6df6 0%, #fff7e6 100%);
  opacity: 1;
}

.scene__inner--b {
  background: linear-gradient(140deg, #ff4d1f 0%, #ffd23f 100%);
  opacity: 0;
}

.scene__name {
  margin: 0;
  font-weight: 800;
  font-size: clamp(18px, 5.2vw, 24px);
  font-family: inherit;
  color: #17141a;
}

.scene__wipes {
  position: absolute;
  inset: 0;
}

.scene__wipe {
  position: absolute;
  top: -20%;
  bottom: -20%;
  left: -45%;
  width: 190%;
  background: #ffffff;
  transform: skewX(-14deg) translateX(-115%);
}

.scene__wipe--2 {
  background: rgba(255, 210, 63, 0.92);
}

.scene__btn {
  padding: 8px 20px;
  border-radius: 12px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  font-weight: 700;
  font-size: 13px;
  font-family: inherit;
  color: #ffffff;
  cursor: pointer;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.scene__btn:active {
  transform: scale(0.94);
}

.scene__wipe {
  transition: transform 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.scene__wipe--2 {
  transition-delay: 100ms;
}

#scene-swap:checked ~ .scene__frame .scene__wipe {
  transform: skewX(-14deg) translateX(115%);
}

#scene-swap:checked ~ .scene__frame .scene__inner--a {
  opacity: 0;
}

#scene-swap:checked ~ .scene__frame .scene__inner--b {
  opacity: 1;
}

.scene.is-demo .scene__wipe--1 {
  animation: wipe-loop-1 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.scene.is-demo .scene__wipe--2 {
  animation: wipe-loop-2 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.scene.is-demo .scene__inner--a {
  animation: inner-a 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.scene.is-demo .scene__inner--b {
  animation: inner-b 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes wipe-loop-1 {
  0%, 8% {
    transform: skewX(-14deg) translateX(-115%);
  }
  34% {
    transform: skewX(-14deg) translateX(115%);
  }
  52%, 58% {
    transform: skewX(-14deg) translateX(115%);
  }
  84%, 100% {
    transform: skewX(-14deg) translateX(-115%);
  }
}
@keyframes wipe-loop-2 {
  0%, 14% {
    transform: skewX(-14deg) translateX(-115%);
  }
  40%, 60% {
    transform: skewX(-14deg) translateX(115%);
  }
  86%, 100% {
    transform: skewX(-14deg) translateX(-115%);
  }
}
@keyframes inner-a {
  0%, 20% {
    opacity: 1;
  }
  26%, 70% {
    opacity: 0;
  }
  76%, 100% {
    opacity: 1;
  }
}
@keyframes inner-b {
  0%, 20% {
    opacity: 0;
  }
  26%, 70% {
    opacity: 1;
  }
  76%, 100% {
    opacity: 0;
  }
}
@media (max-width: 360px) {
  .scene__frame {
    height: 96px;
  }
  .scene__name {
    font-size: 15px;
  }
  .scene__btn {
    padding: 4px 16px;
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .scene__inner, .scene__btn {
    transition: none;
  }
  .scene.is-demo .scene__wipe,
  .scene.is-demo .scene__inner {
    animation: none;
  }
  .scene.is-demo .scene__wipe {
    transform: skewX(-14deg) translateX(-115%);
  }
}