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

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

.row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2f6df6, #17141a);
}

.name {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 20px;
  font-weight: 700;
  color: #17141a;
}

.check {
  transform-origin: center;
  color: #2f6df6;
}

.stage.is-demo .check {
  animation: pop 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

@keyframes pop {
  0%, 50% {
    transform: scale(1);
  }
  62% {
    transform: scale(1.28);
  }
  74% {
    transform: scale(0.94);
  }
  86%, 100% {
    transform: scale(1);
  }
}
@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .check {
    animation: none;
  }
}