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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.cs-frame {
  position: relative;
  width: min(260px, 78vw);
  aspect-ratio: 8/5;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.cs-photo {
  position: absolute;
  inset: 0;
  background: radial-gradient(110px circle at 30% 70%, rgba(255, 255, 255, 0.5), transparent 58%), linear-gradient(135deg, #2f6df6, #fff7e6 130%);
}

.cs-panel {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  background: #17141a;
}

.cs-panel--l {
  left: 0;
  transform: translateX(0);
}

.cs-panel--r {
  left: 50%;
  transform: translateX(0);
}

.cs-panel {
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cs-focal:hover .cs-panel--l {
  transform: translateX(-100%);
}

.cs-focal:hover .cs-panel--r {
  transform: translateX(100%);
}

@keyframes cs-open-l {
  0%, 8% {
    transform: translateX(0);
  }
  45%, 60% {
    transform: translateX(-100%);
  }
  95%, 100% {
    transform: translateX(0);
  }
}
@keyframes cs-open-r {
  0%, 8% {
    transform: translateX(0);
  }
  45%, 60% {
    transform: translateX(100%);
  }
  95%, 100% {
    transform: translateX(0);
  }
}
.cs-frame.is-demo .cs-panel--l {
  animation: cs-open-l 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.cs-frame.is-demo .cs-panel--r {
  animation: cs-open-r 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .cs-focal:hover .cs-panel--l, .cs-frame.is-demo .cs-panel--l {
    animation: none !important;
    transition: none !important;
    transform: translateX(-100%) !important;
  }
  .cs-focal:hover .cs-panel--r, .cs-frame.is-demo .cs-panel--r {
    animation: none !important;
    transition: none !important;
    transform: translateX(100%) !important;
  }
}