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-a {
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  width: clamp(260px, 84vw, 400px);
  min-height: clamp(172px, 48vw, 220px);
  border-radius: 16px;
  background: #17141a;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.hero-a__orb {
  position: absolute;
  width: 46%;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(28px);
  opacity: 0.85;
}

.hero-a__orb--1 {
  background: radial-gradient(#2f6df6 0%, #2f6df6 35%, transparent 68%);
  top: -10%;
  left: 4%;
  animation: driftA 2s steps(4, jump-none) infinite;
}

.hero-a__orb--2 {
  background: radial-gradient(#ffd23f 0%, #ffd23f 35%, transparent 68%);
  bottom: -14%;
  right: 0%;
  animation: driftB 2s steps(4, jump-none) infinite;
  animation-delay: -0.6s;
}

.hero-a__orb--3 {
  background: radial-gradient(#ff4d1f 0%, #ff4d1f 35%, transparent 68%);
  top: 26%;
  right: 26%;
  animation: driftC 2s steps(4, jump-none) infinite;
  animation-delay: -1.2s;
}

.hero-a::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  mix-blend-mode: overlay;
  background-image: radial-gradient(rgba(255, 255, 255, 0.6) 0.5px, transparent 0.5px), radial-gradient(rgba(23, 20, 26, 0.6) 0.5px, transparent 0.5px);
  background-size: 3px 3px, 5px 5px;
  background-position: 0 0, 1px 2px;
  border-radius: inherit;
}

.hero-a__eyebrow {
  position: relative;
  z-index: 1;
  margin: 0;
  color: #ffd23f;
  font: 700 clamp(10px, 2.4vw, 12px)/1 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-a__title {
  position: relative;
  z-index: 1;
  margin: 0;
  color: #ffffff;
  font: 700 clamp(16px, 4.2vw, 20px)/1.25 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.hero-a__cta {
  position: relative;
  z-index: 1;
  align-self: flex-start;
  border: 0;
  border-radius: 999px;
  background: #fff7e6;
  color: #17141a;
  padding: 8px 20px;
  font-weight: 700;
  font-size: clamp(11px, 2.6vw, 13px);
  line-height: 1;
}

@keyframes driftA {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  50% {
    transform: translate(22px, 16px) rotate(20deg);
  }
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
}
@keyframes driftB {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  50% {
    transform: translate(-24px, -14px) rotate(-18deg);
  }
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
}
@keyframes driftC {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  50% {
    transform: translate(18px, -20px) rotate(16deg);
  }
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero-a__orb {
    animation: none;
  }
}