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

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

.cd {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  user-select: none;
  -webkit-user-select: none;
}

.cd__deck {
  position: relative;
  width: 188px;
  height: 100px;
  overflow: hidden;
  border-radius: 16px;
}

.cd__card {
  position: absolute;
  inset: 0;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: #fff7e6;
  border: 1px solid rgba(23, 20, 26, 0.08);
  border-radius: 16px;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1), opacity 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cd__card.is-back1 {
  transform: translateY(-6px) scale(0.94);
}

.cd__card.is-back2 {
  transform: translateY(-12px) scale(0.88);
}

.cd__card.is-top {
  cursor: grab;
  touch-action: none;
  z-index: 2;
}

.cd__card.is-top:active {
  cursor: grabbing;
}

.cd__stamp {
  position: absolute;
  top: 8px;
  padding: 0 8px;
  border-radius: 4px;
  font-size: 12px;
  line-height: 16px;
  font-weight: 800;
  letter-spacing: 0.06em;
  opacity: 0;
  border: 2px solid currentColor;
}

.cd__stamp--pass {
  left: 8px;
  color: #4cd4a6;
  transform: rotate(-9deg);
}

.cd__stamp--skip {
  right: 8px;
  color: #c2361a;
  transform: rotate(9deg);
}

.cd__avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: #fff;
  font-size: 16px;
  line-height: 40px;
  font-weight: 800;
}

.cd__who {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cd__who strong {
  font-size: 14px;
  line-height: 18px;
  font-weight: 800;
  color: #17141a;
}

.cd__who span {
  font-size: 11px;
  line-height: 14px;
  font-weight: 600;
  color: rgba(23, 20, 26, 0.72);
}

.cd__acts {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cd__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(23, 20, 26, 0.14);
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), background 220ms cubic-bezier(0.2, 0.8, 0.2, 1), color 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cd__btn:hover {
  transform: scale(1.08);
}

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

.cd__btn--pass {
  color: #4cd4a6;
}

.cd__btn--skip {
  color: #c2361a;
}

.cd__count {
  font-size: 12px;
  line-height: 14px;
  font-weight: 700;
  color: rgba(23, 20, 26, 0.72);
  font-variant-numeric: tabular-nums;
}

.cd.is-demo .cd__card.is-top {
  animation: cd-drag 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes cd-drag {
  0% {
    transform: translateX(0) rotate(0);
  }
  26% {
    transform: translateX(88px) rotate(9deg);
  }
  38% {
    transform: translateX(190px) rotate(20deg);
    opacity: 1;
  }
  44% {
    transform: translateX(230px) rotate(24deg);
    opacity: 0;
  }
  45%, 70% {
    transform: translateX(230px) rotate(24deg);
    opacity: 0;
  }
  71% {
    transform: translateX(0) rotate(0);
    opacity: 0;
  }
  86%, 100% {
    transform: translateX(0) rotate(0);
    opacity: 1;
  }
}
.cd.is-demo .cd__stamp--pass {
  animation: cd-stamp 2s steps(1, end) infinite;
}

@keyframes cd-stamp {
  0%, 9% {
    opacity: 0;
  }
  10%, 43% {
    opacity: 1;
  }
  44%, 100% {
    opacity: 0;
  }
}
.cd.is-demo .cd__card.is-back1 {
  animation: cd-rise 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes cd-rise {
  0%, 43% {
    transform: translateY(-6px) scale(0.94);
  }
  54%, 70% {
    transform: translateY(0) scale(1);
  }
  71% {
    transform: translateY(-6px) scale(0.94);
  }
  86%, 100% {
    transform: translateY(-6px) scale(0.94);
  }
}
@media (prefers-reduced-motion: reduce) {
  .cd.is-demo .cd__card.is-top,
  .cd.is-demo .cd__stamp--pass,
  .cd.is-demo .cd__card.is-back1 {
    animation: none !important;
  }
  .cd__card {
    transition: none;
  }
}