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);
}

.st-wrap {
  position: relative;
  display: grid;
  place-items: center;
  padding: 24px;
}

.st-title {
  margin: 0;
  color: #17141a;
  font: 800 30px/1 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.st-star {
  position: absolute;
  color: #2f6df6;
  font-size: 18px;
  line-height: 1;
  opacity: 0;
  transform: scale(0.2);
  pointer-events: none;
}

.st-star--1 {
  top: -14px;
  left: -18px;
  color: #ff4d1f;
}

.st-star--2 {
  top: -20px;
  right: -14px;
}

.st-star--3 {
  bottom: -16px;
  left: 40%;
  color: #ff4d1f;
}

@keyframes st-twinkle {
  0%, 100% {
    opacity: 0;
    transform: scale(0.2) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: scale(1) rotate(70deg);
  }
}
.st-wrap.is-demo .st-star {
  animation: st-twinkle 1.3s ease-out infinite;
}

.st-star--2 {
  animation-delay: 260ms;
}

.st-star--3 {
  animation-delay: 480ms;
}

@media (prefers-reduced-motion: reduce) {
  .st-wrap.is-demo .st-star {
    animation: none !important;
    opacity: 0 !important;
  }
}