body {
  background: #22223b;
  font-family: Arial, sans-serif;
  color: #f2e9e4;
  text-align: center;
}
h1 {
  margin-top: 32px;
  color: #9599b2;
}
#pong {
  background: #232946;
  display: block;
  margin: 28px auto 12px auto;
  border-radius: 10px;
  box-shadow: 0 2px 12px #bbb;
}
#score {
  font-size: 1.2em;
  margin-bottom: 10px;
  color: #f6c90e;
}
#restart-btn {
  background: #4a4e69;
  color: #fff;
  font-size: 1em;
  border: none;
  border-radius: 8px;
  padding: 7px 25px;
  cursor: pointer;
  transition: background 0.2s;
  margin-bottom: 20px;
}
#restart-btn:hover {
  background: #232946;
}