:root{--bg: #fefefe;--grid-minor: #f5f2f4;--grid-major: #e4eaef;--wall-stroke: #0f2d4a;--path-line: #469fe8;--machine-fill: #a8e398;--forbid-fill: #fa7768;--forbid-fill-soft: #fcbdb7;--ground: #d1e39f;--wall-face: #e9ebeb;--wall-edge: #a8b0b3;--object-green: #669436;--object-green-hi: #86e54e;--object-red: #d51c17;--shadow: #4d4950}body{margin:0;background:var(--bg);overflow:hidden}#app-canvas{position:fixed;top:0;left:0;width:100vw;height:100vh;display:block}.grid{display:grid;grid-template-columns:repeat(12,1fr);grid-template-rows:repeat(8,1fr);gap:8px}