*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #000008;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  font-family: monospace;
}

#game-wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 800px;
  height: 600px;
  transform-origin: center center;
  /* transform: translate(-50%, -50%) scale(...) applied by JS on resize */
}

canvas {
  display: block;
  border: 1px solid #1a237e;
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.15);
}

/* ── Touch controls ─────────────────────────────────── */

#touch-controls {
  display: none; /* shown only on touch screens via media query below */
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 130px;
  pointer-events: none; /* let canvas receive taps except where buttons sit */
}

@media (pointer: coarse) {
  #touch-controls {
    display: block;
  }
}

#dpad {
  position: absolute;
  left: 20px;
  bottom: 18px;
  display: flex;
  gap: 12px;
  pointer-events: auto;
}

#btn-fire {
  position: absolute;
  right: 20px;
  bottom: 18px;
  pointer-events: auto;
}

#dpad button {
  width: 80px;
  height: 80px;
  font-size: 30px;
}

#btn-fire {
  width: 90px;
  height: 90px;
  font-size: 15px;
  font-weight: bold;
  color: #ff6d00;
  border-color: rgba(255, 109, 0, 0.55);
  box-shadow: 0 0 18px rgba(255, 109, 0, 0.25);
}

#dpad button,
#btn-fire {
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  background: rgba(0, 0, 20, 0.6);
  color: #ffffff;
  font-family: monospace;
  cursor: pointer;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.08s;
}

#dpad button:active,
#btn-fire:active {
  background: rgba(255, 255, 255, 0.18);
}