.tetris-main {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    justify-content: center;
    align-items: stretch;
    width: 100%;
}

@media (max-width: 768px) {
    .tetris-main {
        flex-direction: column;
        align-items: center;
    }
}

#tetris-canvas {
    background-color: rgba(15, 23, 42, 0.9);
    border: 2px solid var(--card-border);
    border-radius: 8px;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8);
    image-rendering: pixelated;
}

.tetris-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 2rem;
    min-width: 250px;
    justify-content: flex-start;
}

.control-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

kbd {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 0.2rem 0.6rem;
    font-family: monospace;
    color: var(--text-primary);
    min-width: 40px;
    text-align: center;
    display: inline-block;
}

.start-btn {
    background: rgba(59, 130, 246, 0.2) !important;
    border-color: var(--accent) !important;
    color: var(--text-primary) !important;
    font-size: 1.2rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.start-btn:hover {
    background: var(--accent) !important;
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.4) !important;
}