body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background: #0d0d0d;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    color: #fff;
}

.game-ui {
    text-align: center;
}

h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    text-shadow: 0 0 10px #ff00ff;
}

.controls {
    margin-bottom: 10px;
}

.controls button, .controls input {
    margin: 0 5px;
    padding: 8px 12px;
    border-radius: 5px;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.3s;
}

.controls button:hover {
    box-shadow: 0 0 10px #00ffff;
}

canvas {
    background: #111;
    display: block;
    border: 2px solid #ff00ff;
    border-radius: 10px;
}