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

body {
  background: #0a0a1a;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
  font-family: 'Arial Black', Arial, sans-serif;
  touch-action: none;
}

#game-wrapper {
  position: relative;
  width: min(100vw, 900px);
  aspect-ratio: 16/9;
}

#gameCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  border-radius: 8px;
  box-shadow: 0 0 40px rgba(100, 200, 255, 0.3);
}

#overlay {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0,0,0,0.75);
  border-radius: 8px;
}

#overlay.hidden { display: none; }

#overlay-content {
  text-align: center;
  color: white;
}

/* Ad placeholder styling (rendered on canvas directly) */