#game-canvas{background:#10151b;border:5px solid var(--surface-elevated);display:block;height:min(65vh,600px);margin:1rem auto;max-width:90vw;width:auto}.mobile-controls{display:flex;flex-wrap:wrap;gap:.45rem;justify-content:center;margin:auto;max-width:440px}.mobile-controls button{background:var(--surface-elevated);border:1px solid var(--border);border-radius:9px;color:var(--text);font-weight:900;min-height:48px;min-width:48px;padding:.5rem .8rem}