:root{--ink:#0E1116;--panel:#141A22;--panel-2:#19212B;--line:#242E3A;--text:#DCE3EC;--muted:#7C8899;--up:#35D6C6;--down:#FFB020;--sel:#FF7A5C;--stage:#0A0D11;--label-bg:#F7FAFF;--label-fg:#131922;--shadow:0 18px 40px -24px rgba(0,0,0,.9)}[data-theme=light]{--ink:#EEF1F5;--panel:#FFFFFF;--panel-2:#F4F6FA;--line:#DBE1EA;--text:#161C24;--muted:#68758A;--up:#0F9C8E;--down:#B4700A;--sel:#D8452A;--stage:#FBFCFE;--label-bg:#FFFFFF;--label-fg:#131922;--shadow:0 14px 30px -22px rgba(20,30,50,.45)}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--ink);color:var(--text);font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,Liberation Mono,monospace;font-size:13px;line-height:1.5;display:flex;flex-direction:column;overflow:hidden}button,input,textarea,select{font:inherit;color:inherit}button{background:none;border:none;cursor:pointer}:focus-visible{outline:2px solid var(--down);outline-offset:2px}.bar{display:flex;align-items:center;gap:18px;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--panel);flex:0 0 auto;flex-wrap:wrap}.brand{display:flex;align-items:baseline;gap:10px}.brand h1{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,sans-serif;font-size:16px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.brand .sub{color:var(--muted);font-size:11px;letter-spacing:.14em;text-transform:uppercase}.stats{display:flex;gap:14px;color:var(--muted);font-size:11px;letter-spacing:.08em;text-transform:uppercase}.stats b{color:var(--text);font-weight:600}.bar .spacer{flex:1}.tools{display:flex;align-items:center;gap:6px}.btn{border:1px solid var(--line);background:var(--panel-2);padding:6px 10px;border-radius:6px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);transition:color .15s,border-color .15s,background .15s}.btn:hover:not(:disabled){color:var(--text);border-color:var(--muted)}.btn:disabled{opacity:.35;cursor:default}.btn.on{color:var(--ink);background:var(--down);border-color:var(--down)}.zoomctl{display:flex;align-items:center;border:1px solid var(--line);border-radius:6px;overflow:hidden}.zoomctl button{padding:6px 10px;color:var(--muted);background:var(--panel-2)}.zoomctl button:hover{color:var(--text)}.zoomctl .lvl{min-width:56px;text-align:center;font-size:11px;color:var(--text);padding:6px 4px;background:var(--panel-2);border-left:1px solid var(--line);border-right:1px solid var(--line)}.shell{flex:1;display:flex;min-height:0}.pane{background:var(--panel);display:flex;flex-direction:column;min-height:0}.pane-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-bottom:1px solid var(--line);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}#editorPane{width:380px;border-right:1px solid var(--line);flex:0 0 auto}#editorPane.hidden,#inspector.hidden{display:none}#src{flex:1;width:100%;resize:none;border:none;background:var(--stage);padding:12px;font-size:12px;line-height:1.65;tab-size:2;white-space:pre;overflow:auto;color:var(--text)}#src:focus{outline:none}.pane-foot{padding:10px 12px;border-top:1px solid var(--line);display:flex;gap:8px;align-items:center}select.ex{flex:1;background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:6px 8px;font-size:11px;color:var(--muted)}.err{display:none;padding:10px 12px;border-top:1px solid var(--line);background:#ff7a5c14;color:var(--sel);font-size:11.5px;white-space:pre-wrap}.err.show{display:block}.err #errMsg{margin-bottom:8px}.err .btn{border-color:var(--sel);color:var(--sel)}.err .btn:hover:not(:disabled){background:var(--sel);color:var(--ink)}.pane-foot.ask{border-top:1px solid var(--line);border-bottom:0}.pane-foot.ask input{flex:1;min-width:0;background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:6px 8px;font-size:12px}.pane-foot.ask input:focus{outline:none;border-color:var(--down)}.gutter{width:4px;cursor:col-resize;background:var(--line);flex:0 0 auto}.gutter:hover{background:var(--down)}.stage{position:relative;flex:1;min-width:0;background:var(--stage);overflow:hidden}#canvas{position:absolute;inset:0;cursor:grab;touch-action:none}#canvas.panning{cursor:grabbing}#scene{position:absolute;top:0;left:0;transform-origin:0 0;will-change:transform}#scene svg{display:block;max-width:none!important;height:auto}.hud{position:absolute;left:14px;bottom:14px;display:flex;gap:10px;align-items:center;color:var(--muted);font-size:11px;letter-spacing:.06em;pointer-events:none;background:var(--stage);border:1px solid var(--line);border-radius:6px;padding:5px 10px}.hud kbd{border:1px solid var(--line);border-radius:4px;padding:1px 5px;background:var(--panel);color:var(--text);font-size:10px}.legend{position:absolute;right:14px;top:14px;display:flex;gap:14px;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:var(--stage);border:1px solid var(--line);border-radius:6px;padding:5px 10px;pointer-events:none}.legend i{display:inline-block;width:14px;height:2px;vertical-align:middle;margin-right:6px}.spin{position:absolute;inset:0;display:none;place-items:center;background:#0a0d11b8;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}.spin.show{display:grid}.toast{position:absolute;left:50%;transform:translate(-50%);bottom:56px;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:8px 14px;font-size:11.5px;color:var(--text);box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .2s}.toast.show{opacity:1}.dirsel{background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:6px 8px;font-size:11px;color:var(--muted);letter-spacing:.06em}.dirsel:focus{outline:none;border-color:var(--down)}.advice,.focusbar{position:absolute;left:50%;transform:translate(-50%);top:14px;display:none;align-items:center;gap:10px;max-width:min(680px,90%);background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--down);border-radius:6px;padding:9px 12px;font-size:11.5px;box-shadow:var(--shadow);z-index:12}.focusbar{border-left-color:var(--sel)}.advice.show,.focusbar.show{display:flex}.advice.show+.focusbar.show{top:66px}.advice .msg,.focusbar .msg{color:var(--muted);flex:1;min-width:0}.advice .msg b,.focusbar .msg b{color:var(--text);font-weight:600}.advice .btn,.focusbar .btn{padding:4px 8px;white-space:nowrap}.advice .x{color:var(--muted);padding:0 2px;font-size:14px;line-height:1}#inline{position:absolute;display:none;z-index:30;resize:none;overflow:hidden;background:var(--panel);color:var(--text);border:2px solid var(--sel);border-radius:6px;padding:6px 8px;text-align:center;font-size:12px;line-height:1.35;box-shadow:var(--shadow)}#inline.show{display:block}#inspector{width:320px;border-left:1px solid var(--line);flex:0 0 auto}.seg{display:flex;padding:10px 12px;gap:6px;border-bottom:1px solid var(--line)}.seg button{flex:1;border:1px solid var(--line);border-radius:6px;padding:5px 4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:var(--panel-2)}.seg button.on{background:var(--down);color:var(--ink);border-color:var(--down)}#find{width:100%;border:none;border-bottom:1px solid var(--line);background:transparent;padding:10px 12px;font-size:12px}#find:focus{outline:none;border-bottom-color:var(--down)}.scroll{flex:1;overflow:auto;min-height:0}.sel-head{padding:14px 12px 12px;border-bottom:1px solid var(--line)}.sel-head .id{color:var(--muted);font-size:11px;word-break:break-all}.sel-head .grp{color:var(--down);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;margin-top:6px}.field{margin-bottom:12px;position:relative}.field label{display:block;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:5px}.field textarea,.field input,.field select{width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:7px 8px;font-size:12.5px;resize:vertical}.field textarea:focus,.field input:focus,.field select:focus{outline:none;border-color:var(--down)}.swatches{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.sw{width:22px;height:22px;border-radius:5px;border:1px solid rgba(255,255,255,.18);position:relative;padding:0}.sw.on{box-shadow:0 0 0 2px var(--panel),0 0 0 4px var(--text)}.sw.clear{background:repeating-linear-gradient(45deg,var(--panel-2),var(--panel-2) 4px,var(--line) 4px,var(--line) 8px)}.sw input{position:absolute;inset:0;opacity:0;width:100%;height:100%;cursor:pointer}.group{padding:12px}.group h3{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;display:flex;align-items:center;gap:8px;font-weight:500}.group h3 .n{margin-left:auto;color:var(--text)}.group h3:before{content:"";width:10px;height:2px;background:var(--muted)}.group.up h3:before{background:var(--up)}.group.down h3:before{background:var(--down)}.group.edit{border-bottom:1px solid var(--line)}.chip{display:block;width:100%;text-align:left;padding:6px 8px;margin-bottom:3px;border-radius:5px;border:1px solid transparent;background:var(--panel-2);font-size:11.5px;color:var(--text)}.chip:hover{border-color:var(--muted)}.chip .via{color:var(--muted);font-size:10px;display:block}.empty{color:var(--muted);font-size:11px;padding:2px 0}.hint{padding:16px 12px;color:var(--muted);font-size:11.5px;line-height:1.7}.hint b{color:var(--text);font-weight:600}#scene .edgeLabel foreignObject{overflow:visible}#scene .edgeLabel .labelBkg,#scene .edgeLabel .label-container{background:transparent!important}#scene .edgeLabel foreignObject span,#scene .edgeLabel foreignObject p{background:var(--label-bg);color:var(--label-fg)!important;padding:2px 7px;border-radius:5px;font-weight:600;box-shadow:0 1px 3px #00000059;white-space:nowrap}#scene.tracing .node{opacity:.14;transition:opacity .18s ease}#scene.tracing .cluster{opacity:.35;transition:opacity .18s ease}#scene.tracing .node.n-on{opacity:1}#scene.tracing .edgePaths path{opacity:.08;transition:opacity .18s ease}#scene.tracing .edgeLabels>g{opacity:.08;transition:opacity .18s ease}#scene.tracing .edgePaths path.e-on{opacity:1}#scene.tracing .edgeLabels>g.e-on{opacity:1}#scene .node.n-sel>*:first-child{filter:drop-shadow(0 0 10px var(--sel))}#scene .node.n-sel rect,#scene .node.n-sel polygon,#scene .node.n-sel circle,#scene .node.n-sel path{stroke:var(--sel)!important;stroke-width:3px!important}#scene .node.n-up rect,#scene .node.n-up polygon,#scene .node.n-up circle,#scene .node.n-up path{stroke:var(--up)!important;stroke-width:2.5px!important}#scene .node.n-down rect,#scene .node.n-down polygon,#scene .node.n-down circle,#scene .node.n-down path{stroke:var(--down)!important;stroke-width:2.5px!important}#scene .edgePaths path.e-up{stroke:var(--up)!important;stroke-width:2.5px!important}#scene .edgePaths path.e-down{stroke:var(--down)!important;stroke-width:2.5px!important}#scene .edgePaths path.e-on{stroke-dasharray:9 6;animation:flow .7s linear infinite}@keyframes flow{to{stroke-dashoffset:-15}}#scene .node{cursor:pointer}#scene .edgeLabels>g{cursor:text}@media (prefers-reduced-motion:reduce){#scene .edgePaths path.e-on{animation:none;stroke-dasharray:none}#scene *{transition:none!important}}@media print{.bar,#editorPane,#inspector,.gutter,.hud,.legend,#inline{display:none!important}body{background:#fff}.stage{overflow:visible}}@media (max-width:900px){#editorPane{position:absolute;z-index:20;top:0;bottom:0;left:0;box-shadow:var(--shadow)}#inspector{position:absolute;z-index:20;top:0;bottom:0;right:0;box-shadow:var(--shadow)}.gutter{display:none}}.settings{border-top:1px solid var(--line);background:var(--panel);flex:0 0 auto}.settings>summary{padding:8px 12px;cursor:pointer;color:var(--muted);font-size:11px;letter-spacing:.08em;text-transform:uppercase;list-style:none;display:flex;gap:6px;align-items:baseline}.settings>summary::-webkit-details-marker{display:none}.settings>summary:before{content:"▸";display:inline-block;transition:transform .15s}.settings[open]>summary:before{transform:rotate(90deg)}.settings>summary b{color:var(--text);font-weight:600;text-transform:none;letter-spacing:0}.settings-body{padding:0 12px 12px;display:flex;flex-direction:column;gap:8px}.settings-body input[type=password],.settings-body input:not([type]){width:100%;padding:7px 9px;background:var(--panel-2);border:1px solid var(--line);border-radius:6px}.settings-row{display:flex;gap:8px;align-items:center}.settings-row input{flex:1}.settings-row label{color:var(--muted);font-size:11px;white-space:nowrap}.settings-row.tight{justify-content:space-between}.settings-row.tight label{display:flex;gap:6px;align-items:center;cursor:pointer}.settings-row select{padding:6px 8px;background:var(--panel-2);border:1px solid var(--line);border-radius:6px}.model-count{color:var(--muted);font-size:11px}.model-list{max-height:220px;overflow-y:auto;display:flex;flex-direction:column;gap:2px}.model-row{display:flex;flex-direction:column;gap:1px;padding:6px 8px;border:1px solid transparent;border-radius:6px;text-align:left;width:100%}.model-row:hover{background:var(--panel-2)}.model-row.on{border-color:var(--up);background:var(--panel-2)}.model-id{color:var(--text);font-size:12px}.model-meta{color:var(--muted);font-size:10px}.sources{display:none;padding:8px 12px;border-top:1px solid var(--line);gap:6px;flex-wrap:wrap;align-items:baseline}.sources.show{display:flex}.sources-label{color:var(--muted);font-size:10px;letter-spacing:.08em;text-transform:uppercase}.sources a{color:var(--up);font-size:11px;text-decoration:none;max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border-bottom:1px solid transparent}.sources a:hover{border-bottom-color:var(--up)}.ai-hint{display:none;padding:8px 12px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;line-height:1.6}.ai-hint.show{display:block}.ai-hint a{color:var(--up);text-decoration:none;border-bottom:1px solid transparent}.ai-hint a:hover{border-bottom-color:var(--up)}button:disabled,input:disabled{opacity:.45;cursor:not-allowed}