.card-stats {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.card-message {
    min-height: 24px;
    margin-bottom: 12px;
    font-size: 0.88rem;
    color: var(--red);
}

.memory-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

@media (max-width: 600px) {
    .memory-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.card {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--paper-2);
    border: 1.5px solid var(--card-border);
    border-radius: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    font-weight: 700;
    color: var(--ink-faint);
    cursor: pointer;
    transition: transform 0.15s, background 0.15s, color 0.15s;
}

.card.flipped {
    background: var(--accent);
    color: #fff;
    transform: scale(1.03);
}

.card.matched {
    background: var(--green);
    color: #fff;
    cursor: default;
}