body {
  font-family: sans-serif;
  background: linear-gradient(135deg, #f06, #4a90e2);
  margin: 0;
  padding: 20px;
  text-align: center;
  color: #fff;
}

h1 {
  margin-bottom: 10px;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(4, 80px);
  gap: 15px;
  justify-content: center;
  margin: 20px auto;
}

.card {
  background: #fff;
  color: #000;
  width: 80px;
  height: 80px;
  font-size: 2rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s;
}

.card.revealed {
  background: #ffe600;
}

#status {
  margin-top: 10px;
  font-size: 18px;
}