body {
  font-family: 'Poppins', sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #ff4d4d, #4d79ff);
  color: #fff;
}
.hidden { display: none; }
button {
  padding: 10px 20px;
  margin: 10px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}
#rollCard { background-color: #ff4d4d; color:#fff; }
#newGame { background-color: #4d79ff; color:#fff; }
#cardDisplay {
  font-size: 20px;
  margin-top: 20px;
  padding: 15px;
  border-radius: 10px;
  min-height: 60px;
}