#game-container {
    width: 100%;
    min-height: 600px;
    background: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

canvas {
    display: block;
    max-width: 100%;
    height: auto !important;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}