html, body { overscroll-behavior: none; touch-action: pan-x pan-y; }
body, #app  { background: #050818 !important; }
#game-root  { background: transparent !important; touch-action: none; }
#game-root canvas { width: 100% !important; height: 100% !important; display: block; }

#flash {
  position: absolute; inset: 0; z-index: 35;
  pointer-events: none; opacity: 0; transition: opacity 0.10s;
}

#countdown {
  position: absolute; inset: 0; z-index: 90;
  display: flex; align-items: center; justify-content: center;
  pointer-events: none; opacity: 0; transition: opacity 0.25s;
}
#countdown.show { opacity: 1; }
#countdown-num {
  font-family: 'Outfit', sans-serif; font-weight: 900; font-size: 96px;
  color: #00FFCC; text-shadow: 0 0 40px rgba(0,255,200,0.85);
  transition: transform 0.28s cubic-bezier(.34,1.56,.64,1), color 0.2s;
}