*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#e8eaf6;font-family:Arial,sans-serif}#root{display:flex;flex-direction:column;align-items:center}h1{margin:1rem 0 .5rem;font-size:1.8rem;color:#303f9f}.game-hud{font-size:1.1rem;color:#303f9f;margin-bottom:.5rem}.game-hud span{font-weight:700}canvas{border:3px solid #303F9F;background:#c5cae9;cursor:crosshair}