#game-area {
    margin-bottom: 20px;
}
#cards-display {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
    min-height: 120px;
}
.card {
    width: 60px;
    height: 90px;
    background-color: white;
    border-radius: 5px;
    color: black;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    animation: popIn 0.3s ease-out;
}
@keyframes popIn {
    0% { transform: scale(0); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}
#score-display {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 20px;
}