body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #eee;
  padding: 20px;
}
h1 { margin-bottom: 15px; }

.score-board {
  font-size: 18px;
  margin-bottom: 15px;
}
.player-score { font-weight: bold; }
.current-turn { color: green; }

.game-board {
  display: grid;
  grid-template-columns: repeat(4, 100px);
  gap: 12px;
  justify-content: center;
}
.card {
  width: 100px;
  height: 130px;
  background: #444;
  color: #fff;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  font-size: 65px;
}
.flipped {
  background: #222;
  cursor: default;
}

button {
  margin-top: 20px;
  padding: 8px 18px;
  font-size: 18px;
  background: #2d89ef;
  border: none;
  color: white;
  border-radius: 5px;
}