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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.hero {
  position: relative;
  width: clamp(260px, 84vw, 400px);
}

.hero__card {
  box-sizing: border-box;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 16px;
  border: 3px solid #17141a;
  border-radius: 0;
  background: #fff7e6;
  box-shadow: 8px 8px 0 #17141a;
}

.hero__badge {
  box-sizing: border-box;
  position: absolute;
  top: -12px;
  right: -12px;
  z-index: 2;
  border: 3px solid #17141a;
  border-radius: 0;
  background: #ff4d1f;
  color: #17141a;
  padding: 4px 12px;
  font-weight: 800;
  font-size: clamp(10px, 2.4vw, 12px);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  animation: badgeSnap 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.hero__eyebrow {
  margin: 0;
  color: #17141a;
  opacity: 0.6;
  font-weight: 800;
  font-size: clamp(10px, 2.4vw, 11px);
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero__title {
  position: relative;
  margin: 0;
  color: #17141a;
  font-weight: 900;
  font-size: clamp(22px, 6vw, 30px);
  line-height: 1.1;
}

.hero__title::before {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
  color: #ffd23f;
  animation: ghostShift 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.hero__desc {
  margin: 0;
  color: rgba(23, 20, 26, 0.72);
  font-weight: 600;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1.4;
}

.hero__cta {
  box-sizing: border-box;
  margin-top: 4px;
  border: 3px solid #17141a;
  border-radius: 999px;
  background: #17141a;
  color: #fff7e6;
  padding: 8px 24px;
  font-weight: 800;
  font-size: clamp(12px, 2.8vw, 14px);
  box-shadow: 4px 4px 0 #ffd23f;
}

@keyframes ghostShift {
  0%, 100% {
    transform: translate(4px, 4px);
  }
  50% {
    transform: translate(-4px, -4px);
  }
}
@keyframes badgeSnap {
  0%, 55%, 100% {
    transform: rotate(-10deg);
  }
  78% {
    transform: rotate(4deg);
  }
  88% {
    transform: rotate(0deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero__title::before, .hero__badge {
    animation: none !important;
    transform: none;
  }
}