:root{--bg: #000;--bar: #111;--bar-border: #2a2a2a;--fg: #e8e8e8;--muted: #9a9a9a;--accent: #4ade80;--accent-fg: #052e16;--btn: #222;--btn-hover: #333;--danger: #f87171;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);font:14px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overscroll-behavior:none}body{display:flex;flex-direction:column;height:100dvh;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}.bar{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;padding:6px 10px;background:var(--bar);border-bottom:1px solid var(--bar-border);flex:none;user-select:none}.bar.status{border-bottom:0;border-top:1px solid var(--bar-border);color:var(--muted);font-size:13px}.group{display:flex;align-items:center;gap:6px}label{color:var(--muted)}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}button{background:var(--btn);color:var(--fg);border:1px solid var(--bar-border);border-radius:6px;padding:5px 10px;font:inherit;cursor:pointer;touch-action:manipulation}button:hover{background:var(--btn-hover)}button.primary{background:var(--accent);color:var(--accent-fg);border-color:transparent;font-weight:600;min-width:84px}button.primary:hover{filter:brightness(1.08)}button.active{outline:2px solid var(--accent)}select,input[type=range]{font:inherit;background:var(--btn);color:var(--fg);border:1px solid var(--bar-border);border-radius:6px;padding:4px 6px}input[type=range]{width:110px;padding:0;accent-color:var(--accent)}#stage{flex:1;min-height:0;position:relative;background:var(--bg)}#life{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:crosshair;image-rendering:pixelated}#life.pan{cursor:grab}.hint{margin-left:auto}dialog{background:var(--bar);color:var(--fg);border:1px solid var(--bar-border);border-radius:10px;padding:18px 20px;width:min(92vw,560px)}dialog::backdrop{background:#0009}dialog h2{margin:0 0 10px;font-size:18px}dialog h3{margin:14px 0 6px;font-size:15px}dialog p,dialog li{color:#ccc}dialog textarea{width:100%;font:13px/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#000;color:var(--fg);border:1px solid var(--bar-border);border-radius:6px;padding:8px;resize:vertical}dialog table{border-collapse:collapse}dialog td{padding:2px 10px 2px 0;vertical-align:top}kbd{font-family:ui-monospace,Menlo,Consolas,monospace;background:#000;border:1px solid #444;border-radius:4px;padding:0 5px}.actions{display:flex;gap:8px;justify-content:flex-end;margin-top:12px}.error{color:var(--danger)}@media(max-width:700px){.hint{display:none}input[type=range]{width:80px}.bar{gap:6px 10px}}