.google-blue { background-color: #4285F4; }
.google-red { background-color: #EA4335; }
.google-yellow { background-color: #FBBC05; }
.google-green { background-color: #34A853; }

.game-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

#memory-game .card {
    transition: all 0.3s ease;
    transform-style: preserve-3d;
}

#memory-game .card.flipped {
    transform: rotateY(180deg);
}

#memory-game .card.matched {
    opacity: 0.5;
}