body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: #111;
    font-family: 'Press Start 2P', cursive;
    overflow: hidden;
}

canvas {
    border: 3px solid #0ff;
    background: #070721;
    box-shadow: 0 0 20px #0ff;
}

#game-over {
    display: none;
    position: absolute;
    color: #0ff;
    font-size: 24px;
    text-align: center;
    text-shadow: 0 0 10px #0ff;
    background: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 10px;
    border: 2px solid #0ff;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 10px #0ff; }
    50% { box-shadow: 0 0 20px #0ff, 0 0 30px #f0f; }
    100% { box-shadow: 0 0 10px #0ff; }
}

.score {
    position: absolute;
    top: 20px;
    color: #0ff;
    text-shadow: 0 0 10px #0ff;
}

#current-score { left: 20px; }
#high-score { right: 20px; }