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

body {
    background: #0a0d14;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    font-family: 'Segoe UI', sans-serif;
}

#app {
    position: relative;
    box-shadow: 0 0 60px rgba(88, 166, 255, 0.15);
}

#gameCanvas {
    display: block;
    cursor: default;
    image-rendering: pixelated;
}