:root{--cs-gray-0:#f0f0f0;--cs-gray-25:#b8b8b8;--cs-gray-50:gray;--cs-gray-75:#494949;--cs-ink:#111}html,body{background:var(--cs-gray-0);overscroll-behavior:none;margin:0;overflow:hidden}#app{position:relative}.game-root{background:var(--cs-gray-0);image-rendering:pixelated;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;position:fixed;inset:0;overflow:hidden}.game-layer{touch-action:none;position:absolute;inset:0}.atom,.particle{will-change:transform;pointer-events:none;position:absolute;top:0;left:0}.atom svg{display:block}.particle{background:var(--cs-ink)}.game-thumb{bottom:max(16px, env(safe-area-inset-bottom));background:var(--cs-ink);pointer-events:none;grid-template-rows:repeat(3,1fr);grid-template-columns:repeat(3,1fr);gap:1px;padding:2px;display:grid;position:fixed;left:50%;transform:translate(-50%)}.thumb-cell{background:var(--cs-gray-50)}