:root{color-scheme:dark;font-family:Arial,sans-serif;background:#090b12}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;overflow:hidden;background:radial-gradient(circle at 68% 0%,#2b1820,#090b12 67%)}#app{width:100vw;height:100vh;display:flex;align-items:flex-start;justify-content:center}canvas{max-width:100%;max-height:100%;border:1px solid #37415e;box-shadow:0 28px 100px #000b}