:root{--bg:#14161a;--panel:#1c1f25;--panel2:#242830;--line:#2f343d;--ink:#e7e9ee;--muted:#8b93a1;--accent:#6fb2ff;--warn:#f2c318;--ok:#7bd88f;
  --pt:#f2c318;--circ:#5fd1ff;--rect:#ff6fd8;--poly:#8ff26f;}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:var(--ink);font:13px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
body{display:grid;grid-template-columns:360px 1fr;grid-template-rows:42px 1fr 26px;grid-template-areas:"top top" "side main" "foot foot";height:100vh}
#topbar{grid-area:top;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 12px;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{font-weight:600;letter-spacing:.02em}.brand .muted{margin-left:8px;font-weight:400;color:var(--muted)}
.dirty{color:var(--warn);margin-left:6px}
.tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.seg button{border-radius:0;padding:3px 8px;border-right-width:0}.seg button:last-child{border-right-width:1px}
button{background:var(--panel2);color:var(--ink);border:1px solid var(--line);padding:4px 9px;border-radius:4px;cursor:pointer;font:inherit}
button:hover{border-color:var(--accent)}button.primary{background:#2a4a75;border-color:#3a6aa8}button.active{background:#2b3a52;border-color:var(--accent)}
.chk{display:flex;align-items:center;gap:5px;color:var(--muted);white-space:nowrap}.chk.big{color:var(--ink);font-weight:600;margin:6px 0}
input[type=range]{width:110px;accent-color:var(--accent)}
#sidebar{grid-area:side;display:flex;flex-direction:column;background:var(--panel);border-right:1px solid var(--line);min-height:0}
.tabs{display:flex;border-bottom:1px solid var(--line)}.tabs button{flex:1;border:0;border-radius:0;background:transparent;padding:9px 2px;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tabs button.active{color:var(--ink);box-shadow:inset 0 -2px var(--accent)}
.tab{display:none;overflow:auto;padding:10px;min-height:0;flex:1}.tab.active{display:flex;flex-direction:column;gap:8px}
.row{display:flex;gap:6px;align-items:center}.row input[type=search],.row input[type=text],.row input:not([type]){flex:1}
input[type=search],input[type=text],input:not([type]),select,textarea{background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:5px 7px;font:inherit}
textarea{width:100%;flex:1;min-height:300px;font:12px/1.4 ui-monospace,Menlo,Consolas,monospace;resize:none}
.hint{color:var(--muted);font-size:12px;margin:0}
.group{border:1px solid var(--line);border-radius:6px;background:var(--panel2)}
.group>summary{cursor:pointer;padding:6px 9px;font-weight:600;list-style:none;display:flex;justify-content:space-between}
.group>summary small{color:var(--muted);font-weight:400}
.mod{display:grid;grid-template-columns:1fr 62px 24px;gap:6px;align-items:center;padding:3px 9px}
.mod label{display:flex;flex-direction:column;gap:2px;min-width:0}.mod label span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mod input[type=range]{width:100%}.mod input[type=number]{width:62px;padding:2px 4px;font:12px ui-monospace,monospace;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:3px}
.mod .rst{border:0;background:transparent;color:var(--muted);padding:0}.mod.changed label span{color:var(--warn)}
.field{display:grid;grid-template-columns:70px 1fr 56px;gap:6px;align-items:center}.field output{font:12px ui-monospace,monospace;color:var(--muted)}
#conn-list .ci{display:grid;grid-template-columns:14px 1fr auto;gap:8px;align-items:center;padding:4px 6px;border-radius:4px;cursor:pointer}
#conn-list .ci:hover{background:var(--panel2)}#conn-list .ci.sel{background:#2b3a52}
.kind{width:10px;height:10px;border-radius:2px;display:inline-block}.kind.point{background:var(--pt);border-radius:50%}.kind.circle{background:var(--circ);border-radius:50%}.kind.rectangle{background:var(--rect)}.kind.polygon{background:var(--poly);transform:skewX(-12deg)}
#conn-list .ci .comp{color:var(--muted);font-size:11px;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#conn-list .ci.off .name{text-decoration:line-through;color:var(--muted)}
.detail{border-top:1px solid var(--line);padding-top:8px;display:flex;flex-direction:column;gap:6px}
.detail h3{margin:0;font-size:13px}.detail .grid{display:grid;grid-template-columns:auto 1fr 1fr 1fr;gap:4px 6px;align-items:center}
.detail .grid span{color:var(--muted)}.detail input[type=number]{width:100%;font:12px ui-monospace,monospace;padding:3px 5px}
.detail textarea{min-height:60px}
.comp{padding:6px 8px;border-bottom:1px solid var(--line)}.comp b{font-family:ui-monospace,monospace;font-size:12px}.comp .a{color:var(--muted);font-size:11px}
#viewport{grid-area:main;position:relative;min-width:0;min-height:0}#c{width:100%;height:100%;display:block}
#hud{position:absolute;left:10px;top:10px;color:var(--muted);font:12px ui-monospace,monospace;pointer-events:none;white-space:pre}
#status{grid-area:foot;display:flex;gap:18px;align-items:center;padding:0 12px;background:var(--panel);border-top:1px solid var(--line);color:var(--muted);font:12px ui-monospace,monospace;overflow:hidden;white-space:nowrap}
#msg{margin-left:auto;color:var(--ink)}
@media (max-width:900px){body{grid-template-columns:1fr;grid-template-rows:auto 1fr 1fr 26px;grid-template-areas:"top" "main" "side" "foot"}#sidebar{border-right:0;border-top:1px solid var(--line)}}