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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.tag {
  position: relative;
  width: min(140px, 46vw);
  aspect-ratio: 4/3;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  overflow: hidden;
  display: grid;
  place-items: center;
  outline: none;
  cursor: pointer;
}

.tag__ribbon {
  position: absolute;
  top: 14px;
  right: -34px;
  width: 120px;
  padding: 4px 0;
  text-align: center;
  transform: rotate(35deg);
  background: repeating-linear-gradient(115deg, #dcb9d1 0 10%, #b9d9dc 10% 20%, #c8dcb9 20% 30%, #dcdab9 30% 40%);
  background-size: 220% 220%;
  background-position: 0 0;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #17141a;
  font-family: inherit;
  box-shadow: 0 2px 6px rgba(23, 20, 26, 0.25);
  transition: transform 300ms ease-out, background-position 300ms ease-out;
}

.tag__price {
  font-weight: 700;
  font-size: 15px;
  color: #17141a;
  font-family: inherit;
}

.tag:hover .tag__ribbon,
.tag:focus-visible .tag__ribbon {
  transform: rotate(30deg) translateY(-2px);
  background-position: 100% 40%;
}

.tag.is-demo .tag__ribbon {
  animation: ribbon-sway 2s ease-out infinite;
}

@keyframes ribbon-sway {
  0%, 15% {
    transform: rotate(35deg) translateY(0);
    background-position: 0 0;
  }
  40% {
    transform: rotate(28deg) translateY(-3px);
    background-position: 100% 40%;
  }
  65% {
    transform: rotate(38deg) translateY(2px);
    background-position: 0 100%;
  }
  90%, 100% {
    transform: rotate(35deg) translateY(0);
    background-position: 0 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .tag__ribbon {
    transition: none;
  }
  .tag.is-demo .tag__ribbon {
    animation: none;
  }
}