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);
}

.sk-wrap {
  position: relative;
  width: min(240px, 82vw);
  display: grid;
  place-items: center;
}

.sk-btn {
  position: relative;
  z-index: 1;
  border: 0;
  border-radius: 12px;
  padding: 12px 24px;
  background: #17141a;
  color: #fff7e6;
  font: 700 14px/1 -apple-system, "Segoe UI", sans-serif;
  cursor: pointer;
  transition: transform 220ms ease-out;
}

.sk-wrap:hover .sk-btn {
  transform: scale(1.03);
}

.sk-star {
  position: absolute;
  color: #ffd23f;
  font-size: 16px;
  line-height: 1;
  opacity: 0;
  transform: scale(0.3);
  pointer-events: none;
}

.sk-star--1 {
  top: -6px;
  left: 6%;
}

.sk-star--2 {
  top: -14px;
  right: 10%;
}

.sk-star--3 {
  bottom: -10px;
  left: 16%;
}

.sk-star--4 {
  bottom: -4px;
  right: 4%;
}

@keyframes sk-twinkle {
  0%, 100% {
    opacity: 0;
    transform: scale(0.3) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: scale(1) rotate(90deg);
  }
}
.sk-wrap:hover .sk-star,
.sk-wrap.is-demo .sk-star {
  animation: sk-twinkle 1.1s ease-out infinite;
}

.sk-star--2 {
  animation-delay: 160ms;
}

.sk-star--3 {
  animation-delay: 320ms;
}

.sk-star--4 {
  animation-delay: 480ms;
}

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