html, body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    height: 100%;
    font-family: 'Comic Sans MS', cursive;
    background: black;
}

canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
}

.menu {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
}

    .menu h1 {
        color: white;
        margin-bottom: 30px;
    }

    .menu button {
        display: block;
        margin: 10px auto;
        padding: 12px 24px;
        font-size: 18px;
        border: none;
        border-radius: 10px;
        background: #663399;
        color: white;
        cursor: pointer;
        transition: background 0.3s;
    }

        .menu button:hover {
            background: #8855cc;
        }