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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.ob {
  display: grid;
  gap: 12px;
  justify-items: center;
}

.ob__caption {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  color: #17141a;
}

.ob__scene {
  position: relative;
  width: 200px;
  height: 140px;
  display: grid;
  place-items: center;
}

.ob__panel {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 200px;
  height: 140px;
  --fill-p: 0;
  border-radius: 16px;
  background: radial-gradient(circle, rgba(10, 79, 232, calc(var(--fill-p) * 0.62)) 0%, rgba(10, 79, 232, calc(var(--fill-p) * 0.28)) 55%, transparent 90%);
  pointer-events: none;
}

.ob__btn {
  position: relative;
  z-index: 1;
  border: 0;
  background: #ffffff;
  border-radius: 999px;
  padding: 16px;
  cursor: pointer;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  transform-origin: center;
}

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

.ob__outline {
  fill: none;
  stroke: #0a4fe8;
  stroke-width: 1.6;
  stroke-linejoin: round;
}

.ob__fill {
  fill: #0a4fe8;
}

.ob__status {
  margin: 0;
  font-size: 11px;
  color: #17141a;
  font-weight: 600;
}

@media (max-width: 340px) {
  .ob__scene {
    width: 150px;
    height: 96px;
  }
  .ob__panel {
    width: 130px;
    height: 78px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ob__btn {
    transition: none;
  }
}