* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    background-color: #87CEEB;
}

#game-container {
    width: 100%;
    height: 100%;
    position: relative;
}

#gameCanvas {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    touch-action: none;
}

#score {
    position: fixed;
    top: 20px;
    left: 20px;
    font-size: 24px;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    z-index: 1;
    font-family: Arial, sans-serif;
}