body {
    background-color: #121212;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

#game-container {
    width: 100%;
    max-width: 400px;
    position: relative;
}

canvas {
    width: 100%;
    height: auto;
    display: block;
    background-color: #000;
    border: 1px solid #333;
}

.back-link {
    position: absolute;
    top: 20px;
    left: 20px;
    color: #bb86fc;
    text-decoration: none;
    font-size: 18px;
    z-index: 1;
}