:root{color-scheme:light;--paper: #f5f5f3;--panel: #ffffff;--ink: #16181c;--muted: #6b7078;--line: #e2e2de;--accent: #9c7318;--radius: 8px;--font: "Public Sans", system-ui, -apple-system, sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--paper);color:var(--ink);font-family:var(--font);overflow:hidden}body{display:grid;grid-template-rows:auto 1fr auto}.bar{display:flex;align-items:center;gap:14px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--line)}.brand{font-weight:600;letter-spacing:-.01em}.tag{color:var(--muted);font-size:13px}.lbl{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em}.spacer{flex:1}.seg{display:flex;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.seg button{border:0;background:transparent;padding:6px 12px;font:inherit;font-size:13px;color:var(--muted);cursor:pointer}.seg button.on{background:var(--ink);color:#fff}.chk{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);cursor:pointer}#undo,#redo{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:6px 12px;font:inherit;font-size:13px;cursor:pointer}#undo:hover,#redo:hover{border-color:var(--accent)}#undo:disabled,#redo:disabled{opacity:.4;cursor:default;border-color:var(--line)}#plan{display:block;width:100%;height:100%;touch-action:none;cursor:default}#plan[data-cursor=pan]{cursor:grab}#plan[data-cursor=panning]{cursor:grabbing}#plan[data-cursor=draw]{cursor:crosshair}#plan[data-cursor=move]{cursor:move}.workspace{display:grid;grid-template-columns:186px 1fr 252px;min-height:0}.stage{position:relative;min-width:0}.zoom{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:2px;padding:4px;background:#fffffff2;border:1px solid var(--line);border-radius:999px;box-shadow:0 2px 10px #161b221a}.zoom button{border:0;background:transparent;border-radius:999px;padding:5px 11px;font:inherit;font-size:14px;color:var(--ink);cursor:pointer;line-height:1}.zoom button:hover{background:#f0f0ec}.zoom output{font-size:12px;color:var(--muted);min-width:46px;text-align:center;font-variant-numeric:tabular-nums}.workspace.bare{grid-template-columns:186px 1fr}.workspace.bare .inspector{display:none}.namerow{display:flex;gap:6px;align-items:center}.namerow input{flex:1;min-width:0}.sizerow{display:grid;grid-template-columns:auto 1fr;gap:5px 6px;align-items:center}.sizerow input{width:100%;min-width:0}.dim{font-size:11px;color:var(--muted);width:12px}.sides{display:grid;grid-template-columns:repeat(3,1fr);gap:5px}.sides button{height:32px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);font:inherit;font-size:12px;font-weight:500;color:var(--ink);cursor:pointer}.sides button:hover{border-color:var(--accent)}.sides button.on{background:var(--ink);border-color:var(--ink);color:#fff}.sides button:disabled{opacity:.4;cursor:default;border-color:var(--line)}.help{margin-top:18px;border-top:1px solid var(--line);padding-top:10px}.help summary{cursor:pointer;font-size:12px;color:var(--muted);list-style:none}.help summary::-webkit-details-marker{display:none}.help summary:before{content:"ⓘ "}.help summary:hover{color:var(--ink)}.help p{font-size:12px;line-height:1.55;color:var(--muted);margin:8px 0 0}.help b{color:var(--ink);font-weight:600}.iconbtn{display:inline-flex;align-items:center;justify-content:center;gap:6px;flex:none;height:32px;min-width:32px;padding:0 8px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);color:var(--muted);font:inherit;font-size:14px;cursor:pointer}.iconbtn.wide{font-size:13px;height:30px}.iconbtn:hover{border-color:var(--accent);color:var(--ink)}.iconbtn.on{background:var(--ink);border-color:var(--ink);color:#fff}.iconbtn:not(.on) .shackle{transform:translate(2.2px) rotate(-14deg);transform-origin:8px 7px}.iconbtn.arrow{font-size:15px;color:var(--ink)}.iconbtn:disabled{opacity:.4;cursor:default;border-color:var(--line)}.anchorrow{display:flex;gap:10px;align-items:flex-start}.anchorrow .readonly{margin:0;flex:1}.anchor{display:grid;grid-template-columns:repeat(3,16px);grid-template-rows:repeat(3,16px);gap:2px;flex:none}.anchor button{border:1px solid var(--line);background:#fff;border-radius:3px;padding:0;cursor:pointer}.anchor button:hover{border-color:var(--accent)}.anchor button.on{background:var(--ink);border-color:var(--ink)}.switch{display:flex!important;align-items:flex-start;gap:7px;font-size:13px!important;color:var(--ink)!important;margin:8px 0!important;cursor:pointer;line-height:1.35}.switch input{margin:2px 0 0;flex:none;accent-color:var(--accent)}.choice{display:flex;align-items:center;justify-content:space-between;width:100%;gap:8px;margin-top:6px;padding:7px 10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);font:inherit;font-size:13px;color:var(--ink);cursor:pointer;text-align:left}.choice b{font-weight:500}.choice small{color:var(--muted);font-variant-numeric:tabular-nums}.choice:hover{border-color:var(--accent)}.choice.on{background:var(--ink);color:#fff;border-color:var(--ink)}.choice.on small{color:#ffffffb3}.inspector{background:var(--panel);border-left:1px solid var(--line);padding:14px 14px 24px;overflow-y:auto;font-size:13px}.inspector .empty{color:var(--muted);line-height:1.5;margin:4px 0}.inspector h2{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 10px;font-weight:600}.inspector label{display:block;font-size:11px;color:var(--muted);margin:12px 0 4px}.inspector input[type=text]{width:100%;font:inherit;font-size:14px;padding:7px 9px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink)}.inspector input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}.pair input{width:100%}.readonly{color:var(--muted);font-size:12px;margin:6px 0 0;line-height:1.6}.bigstat{font-size:26px;font-weight:600;letter-spacing:-.02em;margin:2px 0 0}.bigstat span{font-size:13px;font-weight:400;color:var(--muted)}.note{margin:10px 0 0;padding:8px 10px;background:#faf7f0;border:1px solid #eee3cc;border-radius:var(--radius);color:#6b5a33;font-size:12px;line-height:1.5}.danger{margin-top:16px;width:100%;border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:7px 12px;font:inherit;font-size:13px;cursor:pointer}.danger:hover{border-color:#c0392b;color:#c0392b}.rail{display:flex;flex-direction:column;gap:4px;padding:12px 10px;background:var(--panel);border-right:1px solid var(--line);overflow-y:auto}.rail button{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 10px;border:1px solid transparent;border-radius:var(--radius);background:transparent;font:inherit;font-size:13px;color:var(--ink);cursor:pointer;text-align:left}.rail button b{font-weight:500}.rail button small{color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.rail button.on small{color:#ffffffb3}.rail button:hover{background:#f4f4f1}.rail button.on{background:var(--ink);color:#fff}.rail button.on kbd{background:#ffffff2e;color:#fff;border-color:transparent}.rail kbd{font:500 10px var(--font);padding:1px 5px;border:1px solid var(--line);border-radius:4px;color:var(--muted);background:#fafaf8}.rail hr{width:100%;border:0;border-top:1px solid var(--line);margin:8px 0 4px}.railhead{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:2px 10px 4px}.rail select{font:inherit;font-size:13px;padding:6px 8px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);color:var(--ink)}.hint{margin:2px 0 6px;padding:0 10px;font-size:11px;line-height:1.45;color:var(--muted)}.hint kbd{font-size:10px}.status .live{color:var(--ink);font-weight:500;margin-right:12px}.status{padding:6px 16px;background:var(--panel);border-top:1px solid var(--line);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}