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

body {
  background: #0a0a1a;
  color: #fff;
  font-family: 'Courier New', monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

.ad-banner {
  width: 100%;
  max-width: 728px;
  height: 90px;
  background: #111;
  border: 1px solid #333;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.ad-banner ins.adsbygoogle {
  display: block;
  width: 728px;
  height: 90px;
}

.ad-label {
  color: #555;
  font-size: 11px;
  position: absolute;
  pointer-events: none;
}

#game-container {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 0;
}

#gameCanvas {
  display: block;
  border: 2px solid #334;
  cursor: pointer;
  background: #050510;
}