/* M05 · 捏爆气球 */
.m05-stage {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  min-height: 100%;
  padding: var(--sp-4);
  border-radius: var(--radius-lg);
  background: var(--c-aqua-soft);
  background: color-mix(in srgb, var(--c-aqua) 15%, var(--surface-2));
  overflow: hidden;
}

.m05-tip,
.m05-message { text-align: center; color: var(--c-ink-500); }

.m05-hud {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-2);
  font-size: var(--fs-13);
  color: var(--c-ink-700);
}

.m05-score { color: var(--c-rose-700); font-family: var(--font-num); }

.m05-field {
  position: relative;
  min-height: 360px;
  flex: 1;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse at 50% 100%, color-mix(in srgb, var(--c-aqua) 26%, transparent), transparent 70%),
    linear-gradient(180deg, color-mix(in srgb, var(--c-white) 65%, transparent), transparent);
  touch-action: manipulation;
}

.m05-balloon {
  position: absolute;
  bottom: -70px;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 58px;
  height: 74px;
  font-family: var(--font-emoji);
  font-size: 48px;
  line-height: 1;
  filter: drop-shadow(0 5px 6px var(--c-line-soft));
  animation: m05-float var(--m05-duration, 4.6s) linear var(--m05-delay, 0s) both;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}

.m05-balloon:active { transform: scale(.9); }
.m05-balloon.is-pop { opacity: 0; transform: scale(1.45); }

@keyframes m05-float {
  from { transform: translate3d(0, 0, 0) rotate(-7deg); }
  50% { transform: translate3d(12px, -210px, 0) rotate(7deg); }
  to { transform: translate3d(-8px, -470px, 0) rotate(-5deg); }
}

@media (max-height: 700px) {
  .m05-field { min-height: 280px; }
}

@media (prefers-reduced-motion: reduce) {
  .m05-balloon { animation-duration: 8s; }
}