body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: #222;
    font-family: 'Arial', sans-serif;
    overflow: hidden;
    color: white;
}

#game-container {
    position: relative;
    width: 600px;
    height: 600px;
}

#game-canvas {
    background: #111;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 255, 100, 0.3);
}

#score-display {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 18px;
    color: #0f0;
    text-shadow: 0 0 5px rgba(0, 255, 0, 0.7);
}

#game-over {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
}

#game-over h2 {
    color: #f00;
    font-size: 36px;
    margin-bottom: 20px;
    text-shadow: 0 0 10px rgba(255, 0, 0, 0.7);
}

#final-score {
    color: #0f0;
    font-size: 24px;
    margin-bottom: 30px;
}

#restart-btn {
    padding: 10px 20px;
    background: #0a0;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s;
}

#restart-btn:hover {
    background: #0f0;
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.7);
}

.controls-info {
    position: absolute;
    bottom: 10px;
    left: 10px;
    font-size: 14px;
    color: #aaa;
}