:root {
    --card-bg: var(--surface);
    --card-border: var(--border);
    --card-red: #d32f2f;
    --card-black: #212121;
    --bet-btn-bg: var(--primary);
    --bet-btn-hover: var(--primary-dark);
}

.card-game-container {
    background: var(--surface);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    margin: 2rem 0;
    color: var(--text);
}

.game-section {
    text-align: center;
}

.game-section h2 {
    color: var(--text);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.game-section h2 i {
    color: var(--primary);
}

.card-display {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
}

.card {
    background: var(--card-bg);
    width: 140px;
    height: 200px;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    position: relative;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card.red {
    color: var(--card-red);
}

.card.black {
    color: var(--card-black);
}

.card-suit {
    font-size: 3rem;
    margin-top: 0.5rem;
}

.betting-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin: 2rem 0;
}

.bet-amount {
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    background: var(--background);
    color: var(--text);
    font-size: 1rem;
    width: 200px;
    text-align: center;
}

.prediction-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.predict-higher, .predict-lower {
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    border: none;
    background: var(--bet-btn-bg);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.predict-higher:hover, .predict-lower:hover {
    background: var(--bet-btn-hover);
    transform: translateY(-2px);
}

.game-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .card-game-container {
        padding: 1.5rem;
        margin: 1rem 0;
    }

    .card {
        width: 120px;
        height: 170px;
    }

    .prediction-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
}

.result-message {
    font-size: 1.25rem;
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
}

@keyframes cardFlip {
    0% { transform: rotateY(0deg); }
    100% { transform: rotateY(180deg); }
}

.card.flipping {
    animation: cardFlip 0.6s ease-in-out;
}