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);
}

.anchor {
  position: relative;
  display: inline-block;
}

.trigger {
  border: 0;
  border-radius: 12px;
  padding: clamp(9px, 3vmin, 12px) clamp(16px, 5.4vmin, 22px);
  font-weight: 600;
  font-size: clamp(12px, 3.6vmin, 15px);
  line-height: 1;
  font-family: inherit;
  color: #ffd23f;
  background: #17141a;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.confirm {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%) translateY(6px) scale(0.92);
  opacity: 0;
  pointer-events: none;
  width: clamp(140px, 46vmin, 190px);
  padding: clamp(10px, 3.4vmin, 14px);
  border-radius: 16px;
  background: #ffffff;
  color: #17141a;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  transition: opacity 220ms cubic-bezier(0.2, 1.4, 0.4, 1), transform 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
  margin: 0;
  border: 0;
}
.confirm p {
  margin: 0 0 10px;
  font-size: clamp(10px, 3.2vmin, 12px);
}

.confirm:popover-open {
  position: fixed;
  inset: auto;
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}

.confirm__row {
  display: flex;
  gap: clamp(6px, 2vmin, 8px);
}

.confirm__yes, .confirm__no {
  flex: 1;
  border: 0;
  border-radius: 12px;
  padding: clamp(6px, 2.2vmin, 8px) 0;
  font-weight: 600;
  font-size: clamp(10px, 3vmin, 12px);
  line-height: 1;
  font-family: inherit;
  cursor: pointer;
}

.confirm__yes {
  background: #c2361a;
  color: #ffffff;
}

.confirm__no {
  background: #ffe0d8;
  color: #c2361a;
}

.anchor.is-demo .confirm {
  animation: confirm-loop 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

@keyframes confirm-loop {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(6px) scale(0.92);
  }
  15% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
  70% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
  85% {
    opacity: 0;
    transform: translateX(-50%) translateY(6px) scale(0.92);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(6px) scale(0.92);
  }
}
@media (prefers-reduced-motion: reduce) {
  .anchor.is-demo .confirm {
    animation: none;
  }
  .confirm {
    transition-duration: 1ms;
  }
}