body {
    background: #222;
    color: #fff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background: #333;
    padding: 32px 40px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    margin-bottom: 16px;
    font-size: 2.2rem;
    letter-spacing: 2px;
}

#gameCanvas {
    background: #111;
    border: 2px solid #4caf50;
    border-radius: 8px;
    margin-bottom: 16px;
    display: block;
}

#score {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

#restartBtn {
    background: #4caf50;
    color: #fff;
    border: none;
    padding: 10px 24px;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}

#restartBtn:hover {
    background: #388e3c;
}