body {
    background-color: #111;
    color: #eee;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    overflow: hidden;
}

#game-container {
    text-align: center;
}

canvas {
    background-color: #222;
    border: 2px solid #444;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    max-width: 100%;
    max-height: 80vh;
}

h1 {
    margin-bottom: 10px;
    font-weight: 300;
}