body {
  font-family: 'Arial', sans-serif;
  text-align: center;
  background: #f0f8f5;
  color: #333;
  background-image: url('A_digital_illustration_showcases_an_Islamic-themed.png');
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(4px);
  z-index: -1;
}
h1 {
  color: #2c786c;
}
#game-board {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: 30px auto;
}
.column {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.card {
  background-color: #e6fff2;
  border: 2px solid #2c786c;
  border-radius: 10px;
  padding: 15px;
  font-size: 14px;
  cursor: pointer;
  width: 200px;
  height: 100px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background 0.3s, transform 0.2s;
}
.card:hover {
  background-color: #d4f5e9;
  transform: scale(1.05);
}
.card.matched {
  background-color: #b2f2bb;
  border-color: #28a745;
  cursor: default;
}
.left .hadith-card {
  background-color: #fffbe6;
  border-color: #c9b458;
}
button {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #2c786c;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}