body {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #111;
  color: #fff;
  font-family: Arial, sans-serif;
  height: 100vh;
  margin: 0;
}

canvas#pongCanvas {
  background: #222;
  display: block;
  border: 4px solid #fff;
  border-radius: 15px;
  margin-top: 20px;
  box-shadow: 0 0 15px #fff;
}

/* Overlay für Siegeranzeige über dem Canvas-Rahmen */
#overlay {
  position: absolute;
  top: 175px;                /* genau über Canvas */
  left: 965px;
  transform: translateX(-50%);
  width: 630px;
  height: 425px;
  background: rgba(0,0,0,0.8);
  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  color: #fff;
  font-size: 40px;
  text-align: center;
  border-radius: 15px;
  box-shadow: 0 0 20px #fff;
  z-index: 100;
}

#overlay button {
  margin-top: 20px;
  font-size: 24px;
  padding: 10px 30px;
  cursor: pointer;
}

#startBtn, #restartBtn {
  margin-top: 10px;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
}

#infoBox {
  margin-top: 10px;
  padding: 5px 10px;
  background: #333;
  border: 1px solid #fff;
}

#mobileControls button {
  padding: 15px 30px;
  font-size: 24px;
  margin: 0 20px;
  position: relative;
  top: 30px;
  cursor: pointer;
  border-radius: 10px;
  background: #444;
  color: #fff;
  border: 2px solid #fff;
  box-shadow: 0 0 5px #fff;
}

#mobileControls button:active {
  background: #666;
}