body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #000;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#game-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#game-ui {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 10;
    color: white;
    pointer-events: none;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

#speedometer {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 5px;
}

#instructions {
    font-size: 14px;
    opacity: 0.8;
}

canvas {
    display: block;
}