.screen[data-screen="play"] {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  overflow: hidden;
}

.screen[data-screen="play"].active {
  display: block;
}

#stage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.drop-action-btn {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #EC4899 0%, #A855F7 100%);
  color: #FFFFFF;
  border: none;
  border-radius: 999px;
  padding: 16px 40px;
  font-family: var(--font-display, inherit);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.05em;
  box-shadow: 0 0 25px rgba(236, 72, 153, 0.5), 0 10px 20px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  z-index: 10;
  touch-action: manipulation;
  transition: transform 0.1s ease, box-shadow 0.1s ease, filter 0.1s ease;
  user-select: none;
}

.drop-action-btn:hover {
  transform: translateX(-50%) scale(1.05);
  box-shadow: 0 0 35px rgba(236, 72, 153, 0.8), 0 14px 24px rgba(0, 0, 0, 0.5);
}

.drop-action-btn:active {
  transform: translateX(-50%) scale(0.96);
  filter: brightness(0.9);
}

.drop-action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: translateX(-50%) scale(1);
  box-shadow: none;
}

.drop-icon {
  font-size: 26px;
  line-height: 1;
}

.hint {
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  color: #94A3B8;
  white-space: nowrap;
  pointer-events: none;
  z-index: 5;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

@media (max-height: 600px) {
  .drop-action-btn {
    bottom: 12px;
    padding: 12px 28px;
    font-size: 18px;
  }
}