body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(to bottom, #87CEEB, #98FB98);
    font-family: Arial, sans-serif;
}

#gameContainer {
    position: relative;
    text-align: center;
}

#gameCanvas {
    border: 3px solid #333;
    border-radius: 10px;
    background: linear-gradient(to bottom, #87CEEB 0%, #87CEEB 70%, #90EE90 70%, #90EE90 100%);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

#score {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

#gameOver {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
}

#gameOver h2 {
    margin-top: 0;
    color: #ff6b6b;
}

#gameOver button {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 15px;
}

#gameOver button:hover {
    background: #45a049;
}

#instructions {
    margin-top: 15px;
    color: #333;
    font-size: 14px;
}

.hidden {
    display: none;
}