body {
    margin: 0;
    background: #111;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    font-family: 'Segoe UI', Arial, sans-serif;
}

canvas {
    border: 4px solid #fff;
    border-radius: 12px;
    background-color: #70c5ce;
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
    cursor: pointer;
}
h1 {
    color: #fff;
    text-align: center;
    margin-bottom: 20px;
}
button {
    background-color: #ffcc00;
    border: none;
    padding: 10px 20px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
button:hover {
    background-color: #ffaa00;
}
button:active {
    background-color: #ff8800;
}
.score {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}