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);
}

.ctaneu {
  position: relative;
  box-sizing: border-box;
  width: clamp(240px, 84vw, 380px);
  padding: 24px 16px;
  border-radius: 16px;
  background: rgb(94%, 28.3843137255%, 11.4274509804%);
  box-shadow: 8px 8px 16px rgba(37.6%, 11.3537254902%, 4.5709803922%, 0.4), -8px -8px 16px rgba(97.6%, 71.3537254902%, 64.5709803922%, 0.5);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.ctaneu__glow {
  position: absolute;
  top: -20%;
  right: -16%;
  width: clamp(120px, 40vw, 180px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 109, 246, 0.35), rgba(47, 109, 246, 0) 70%);
  animation: breathe 2s ease-out infinite;
}

.ctaneu__title {
  position: relative;
  margin: 0;
  max-width: 260px;
  color: #17141a;
  font-weight: 700;
  font-size: clamp(15px, 3.6vw, 19px);
  line-height: 1.3;
}

.ctaneu__btn {
  position: relative;
  border: 0;
  border-radius: 999px;
  background: rgb(94%, 28.3843137255%, 11.4274509804%);
  color: #17141a;
  padding: 8px 20px;
  font-weight: 700;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1;
  box-shadow: 5px 5px 10px rgba(37.6%, 11.3537254902%, 4.5709803922%, 0.4), -5px -5px 10px rgba(97.6%, 71.3537254902%, 64.5709803922%, 0.5);
  animation: btnPulse 2s ease-out infinite;
}

.ctaneu__btn:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 2px;
}

@keyframes breathe {
  0%, 100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.25);
    opacity: 1;
  }
}
@keyframes btnPulse {
  0%, 55%, 100% {
    box-shadow: 5px 5px 10px rgba(37.6%, 11.3537254902%, 4.5709803922%, 0.4), -5px -5px 10px rgba(97.6%, 71.3537254902%, 64.5709803922%, 0.5);
    transform: scale(1);
  }
  75% {
    box-shadow: inset 3px 3px 6px rgba(37.6%, 11.3537254902%, 4.5709803922%, 0.4), inset -3px -3px 6px rgba(97.6%, 71.3537254902%, 64.5709803922%, 0.5);
    transform: scale(0.96);
  }
}
@media (prefers-reduced-motion: reduce) {
  .ctaneu__glow, .ctaneu__btn {
    animation: none !important;
    transform: none;
  }
}