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

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #222;
    font-family: Arial, sans-serif;
}

.game-container {
    position: relative;
}

canvas {
    display: block;
    background-color: #000;
    border: 2px solid #444;
}

.controls {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    color: white;
    font-size: 18px;
}

.score, .lives {
    padding: 5px 10px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
}