body {
    margin: 0;
    background: linear-gradient(135deg, #020617, #0f172a, #020617);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    font-family: 'Segoe UI', Arial, sans-serif;
}
canvas {
    border: 2px solid rgba(56, 189, 248, 0.2);
    border-radius: 12px;
    box-shadow: 0 0 60px rgba(56, 189, 248, 0.15), 0 0 100px rgba(56, 189, 248, 0.05);
}