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);
}

.stage {
  position: relative;
  overflow: hidden;
}

.blob {
  position: absolute;
  width: 52%;
  aspect-ratio: 1;
  left: 24%;
  top: 18%;
  background: #fff7e6;
}

.m1 {
  border-radius: 42% 58% 63% 37%/41% 44% 56% 59%;
  animation: morph1 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.m2 {
  border-radius: 63% 37% 41% 59%/55% 48% 52% 45%;
  opacity: 0;
  animation: morph2 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.m3 {
  border-radius: 35% 65% 55% 45%/60% 40% 60% 40%;
  opacity: 0;
  animation: morph3 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes morph1 {
  0% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
  28% {
    opacity: 1;
    transform: scale(1.05) rotate(4deg);
  }
  38% {
    opacity: 0;
    transform: scale(0.94) rotate(8deg);
  }
  92% {
    opacity: 0;
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}
@keyframes morph2 {
  0%, 30% {
    opacity: 0;
  }
  40% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
  68% {
    opacity: 1;
    transform: scale(1.05) rotate(-4deg);
  }
  78% {
    opacity: 0;
    transform: scale(0.94) rotate(-8deg);
  }
  100% {
    opacity: 0;
  }
}
@keyframes morph3 {
  0%, 70% {
    opacity: 0;
  }
  80% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
  96% {
    opacity: 1;
    transform: scale(1.05) rotate(4deg);
  }
  100% {
    opacity: 0;
  }
}
.hint {
  position: relative;
  margin: 0;
  padding: 10px 20px;
  border-radius: 999px;
  background: #fff7e6;
  color: #17141a;
  font: 700 clamp(14px, 4vw, 18px)/1.3 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

@media (prefers-reduced-motion: reduce) {
  .blob {
    animation: none;
  }
  .m1 {
    opacity: 1;
  }
  .m2, .m3 {
    opacity: 0;
  }
}