:root{--c-bg: #0c1514;--c-gold: #c9a75a;--r-lg: 14px}html,body{margin:0;padding:0;background:var(--c-bg);height:100%}#app{display:flex;align-items:center;justify-content:center;min-height:100vh;overflow:hidden}#app canvas{border:1px solid var(--c-gold);border-radius:var(--r-lg);max-width:100vw;max-height:100vh;display:block;touch-action:none}@media(max-width:760px){#app canvas{border:none;border-radius:0}}