* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #0a0a1a;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

canvas {
    border-radius: 16px;
    box-shadow:
        0 0 40px rgba(99, 102, 241, 0.3),
        0 0 80px rgba(99, 102, 241, 0.1),
        0 20px 60px rgba(0, 0, 0, 0.5);
    cursor: pointer;
}