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);
}

.sheen {
  position: relative;
  margin: 0;
  font-weight: 800;
  font-size: clamp(26px, 8vw, 42px);
  line-height: 1.2;
  font-family: inherit;
  text-align: center;
}

.sheen__base, .sheen__light {
  display: block;
  grid-area: 1/1;
}

.sheen {
  display: grid;
}

.sheen__base {
  color: #17141a;
}

.sheen__light {
  background: linear-gradient(100deg, transparent 42%, rgba(255, 255, 255, 0.95) 50%, transparent 58%);
  background-size: 260% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: sweep 2s ease-out infinite;
}

@keyframes sweep {
  0% {
    background-position: 140% 50%;
  }
  60% {
    background-position: -40% 50%;
  }
  100% {
    background-position: -40% 50%;
  }
}
@media (prefers-reduced-motion: reduce) {
  .sheen__light {
    animation: none;
    background-position: 50% 50%;
  }
}