:root {
      --bg: #070912;
      --panel: #101522;
      --panel-2: #151c2d;
      --panel-3: #1b2436;
      --text: #e9eef8;
      --muted: #9aa8bd;
      --line: rgba(255,255,255,.12);
      --accent: #49fafe;
      --accent-2: #9d7cff;
      --ok: #44d07b;
      --warn: #ffc857;
      --error: #ff5d73;
      --shadow: 0 20px 60px rgba(0,0,0,.45);
      --radius: 16px;
      color-scheme: dark;
      font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    * { box-sizing: border-box; }

    html,
    body {
      min-height: 100%;
      margin: 0;
      background:
        radial-gradient(circle at 20% 10%, rgba(73,250,254,.12), transparent 28rem),
        radial-gradient(circle at 90% 0%, rgba(157,124,255,.16), transparent 24rem),
        linear-gradient(180deg, #070912 0%, #05070d 100%);
      color: var(--text);
    }

    button,
    input,
    select {
      font: inherit;
    }

    .app {
      min-height: 100vh;
      display: grid;
      grid-template-rows: auto 1fr auto;
      gap: 14px;
      padding: 14px;
    }

    .topbar,
    .bottombar {
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(21,28,45,.92), rgba(11,15,26,.92));
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      backdrop-filter: blur(18px);
    }

    .topbar {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 14px;
      padding: 14px 16px;
    }

    .brand h1 {
      margin: 0;
      font-size: clamp(1.1rem, 2.2vw, 1.65rem);
      letter-spacing: -.02em;
    }

    .brand p {
      margin: 4px 0 0;
      color: var(--muted);
      font-size: .94rem;
    }

    .toolbar {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: flex-end;
    }

    .btn {
      border: 1px solid rgba(255,255,255,.14);
      color: var(--text);
      background: linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
      border-radius: 999px;
      padding: 8px 12px;
      cursor: pointer;
      transition: transform .12s ease, border-color .12s ease, background .12s ease;
      white-space: nowrap;
    }

    .btn:hover { transform: translateY(-1px); border-color: rgba(73,250,254,.55); }
    .btn:active { transform: translateY(0); }
    .btn.primary { background: linear-gradient(180deg, rgba(73,250,254,.25), rgba(73,250,254,.08)); border-color: rgba(73,250,254,.45); }
    .btn.danger { background: linear-gradient(180deg, rgba(255,93,115,.2), rgba(255,93,115,.06)); }
    .btn[aria-pressed="true"] { border-color: rgba(73,250,254,.75); box-shadow: 0 0 0 3px rgba(73,250,254,.12) inset; }

    .main {
      display: grid;
      grid-template-columns: minmax(360px, .92fr) minmax(520px, 1.35fr);
      gap: 14px;
      min-height: 0;
    }

    .pane {
      min-width: 0;
      min-height: 0;
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(16,21,34,.96), rgba(8,11,18,.96));
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .pane-header {
      display: flex;
      gap: 8px;
      justify-content: space-between;
      align-items: center;
      padding: 10px 12px;
      border-bottom: 1px solid var(--line);
      background: rgba(255,255,255,.03);
    }

    .pane-header strong { letter-spacing: .01em; }

    .tabs {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }

    .tab {
      border: 1px solid rgba(255,255,255,.11);
      background: rgba(255,255,255,.04);
      color: var(--muted);
      border-radius: 999px;
      padding: 5px 9px;
      cursor: pointer;
      font-size: .82rem;
    }

    .tab[aria-selected="true"] {
      color: var(--text);
      border-color: rgba(73,250,254,.5);
      background: rgba(73,250,254,.11);
    }

    .xml-body {
      display: grid;
      grid-template-rows: minmax(0, 1fr) auto;
      min-height: 0;
      flex: 1;
    }

    pre.xml {
      margin: 0;
      padding: 16px;
      overflow: auto;
      line-height: 1.45;
      color: #d7e7ff;
      font-size: 12.5px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
      tab-size: 2;
      white-space: pre;
    }

    .notes {
      border-top: 1px solid var(--line);
      padding: 12px 14px;
      background: rgba(73,250,254,.04);
      color: var(--muted);
      font-size: .9rem;
    }

    .notes code {
      color: var(--accent);
      background: rgba(0,0,0,.2);
      border-radius: 6px;
      padding: 1px 5px;
    }

    .graph-wrap {
      position: relative;
      flex: 1;
      min-height: 0;
      display: grid;
    }

    fox-ve-node-graph {
      display: block;
      width: 100%;
      height: 100%;
      min-height: 560px;
      --node-color: #0d6efd;
    }

    .fox-ve-node-graph-root,
    .fox-ve-node-graph-viewport {
      position: relative;
      width: 100%;
      height: 100%;
      overflow: hidden;
      outline: none;
    }

    .fox-ve-node-graph-viewport {
      background-color: #0a0e18;
      background-image:
        linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px),
        linear-gradient(rgba(73,250,254,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(73,250,254,.08) 1px, transparent 1px);
      background-size:
        calc(var(--grid, 24px) * var(--zoom, 1)) calc(var(--grid, 24px) * var(--zoom, 1)),
        calc(var(--grid, 24px) * var(--zoom, 1)) calc(var(--grid, 24px) * var(--zoom, 1)),
        calc(var(--grid, 24px) * 4 * var(--zoom, 1)) calc(var(--grid, 24px) * 4 * var(--zoom, 1)),
        calc(var(--grid, 24px) * 4 * var(--zoom, 1)) calc(var(--grid, 24px) * 4 * var(--zoom, 1));
      background-position:
        var(--pan-x, 0px) var(--pan-y, 0px),
        var(--pan-x, 0px) var(--pan-y, 0px),
        var(--pan-x, 0px) var(--pan-y, 0px),
        var(--pan-x, 0px) var(--pan-y, 0px);
      cursor: crosshair;
    }

    .fox-ve-node-graph-viewport:focus {
      box-shadow: 0 0 0 3px rgba(73,250,254,.08) inset;
    }

    .fox-ve-node-graph-edges,
    .fox-ve-node-graph-nodes {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      transform-origin: 0 0;
    }

    .fox-ve-node-graph-edges { pointer-events: none; overflow: visible; }
    .fox-ve-node-graph-edge-group { pointer-events: auto; }
    .fox-ve-node-graph-edge-hit { fill: none; stroke: transparent; stroke-width: 18; cursor: pointer; }
    .fox-ve-node-graph-edge { fill: none; stroke: rgba(73,250,254,.78); stroke-width: 3; filter: drop-shadow(0 0 7px rgba(73,250,254,.32)); pointer-events: none; }
    .fox-ve-node-graph-edge-group:hover .fox-ve-node-graph-edge { stroke-width: 4; stroke: #fff; }
    .fox-ve-node-graph-ghost-edge { fill: none; stroke: rgba(255,200,87,.92); stroke-width: 3; stroke-dasharray: 8 8; filter: drop-shadow(0 0 8px rgba(255,200,87,.35)); pointer-events: none; }
    .fox-ve-node-graph-nodes { pointer-events: none; }

    .fox-ve-node-graph-empty {
      position: absolute;
      left: 18px;
      bottom: 18px;
      color: rgba(233,238,248,.65);
      font-size: .95rem;
      background: rgba(0,0,0,.25);
      border: 1px solid rgba(255,255,255,.1);
      border-radius: 999px;
      padding: 8px 12px;
      user-select: none;
      pointer-events: none;
    }

    .fox-ve-node-graph-root.is-panning .fox-ve-node-graph-viewport { cursor: grabbing; }
    .fox-ve-node-graph-root.is-connection-mode .fox-ve-node-graph-viewport { cursor: crosshair; }
    .fox-ve-node-graph-root.is-readonly .fox-ve-node-graph-viewport { cursor: not-allowed; }

    fox-ve-node-card {
      position: absolute;
      width: 208px;
      display: block;
      pointer-events: auto;
      user-select: none;
      color: var(--text);
      border-radius: 14px;
      border: 1px solid rgba(255,255,255,.13);
      background:
        linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03)),
        linear-gradient(180deg, #182033, #0f1421);
      box-shadow: 0 20px 34px rgba(0,0,0,.36), 0 0 0 1px rgba(0,0,0,.35) inset;
      overflow: hidden;
      transform: translateZ(0);
    }

    fox-ve-node-card[selected] {
      border-color: rgba(73,250,254,.8);
      box-shadow: 0 0 0 2px rgba(73,250,254,.16), 0 20px 38px rgba(0,0,0,.42), 0 0 32px rgba(73,250,254,.08);
    }

    fox-ve-node-card[status="warning"] { --node-status: var(--warn); }
    fox-ve-node-card[status="error"] { --node-status: var(--error); }
    fox-ve-node-card[status="disabled"] { opacity: .58; filter: saturate(.4); }
    fox-ve-node-card:not([status]), fox-ve-node-card[status="ok"] { --node-status: var(--ok); }

    .fox-ve-node-card-header {
      display: grid;
      grid-template-columns: auto minmax(0, 1fr) auto;
      align-items: center;
      gap: 9px;
      padding: 10px 10px 8px;
      background: linear-gradient(90deg, color-mix(in srgb, var(--node-color, #0d6efd) 22%, transparent), transparent 72%);
      border-bottom: 1px solid rgba(255,255,255,.08);
      cursor: grab;
    }

    .fox-ve-node-card-status {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--node-status, var(--ok));
      box-shadow: 0 0 12px color-mix(in srgb, var(--node-status, var(--ok)) 70%, transparent);
    }

    .fox-ve-node-card-title {
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      font-weight: 700;
      letter-spacing: .01em;
    }

    .fox-ve-node-card-expand {
      width: 26px;
      height: 26px;
      display: grid;
      place-items: center;
      border-radius: 8px;
      border: 1px solid rgba(255,255,255,.13);
      background: rgba(0,0,0,.16);
      color: var(--text);
      cursor: pointer;
    }

    .fox-ve-node-card-expand i {
      display: inline-block;
      transition: transform .16s ease;
      font-style: normal;
    }

    fox-ve-node-card[expanded] .fox-ve-node-card-expand i { transform: rotate(180deg); }

    .fox-ve-node-card-port-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      padding: 9px 8px;
    }

    .fox-ve-node-card-ports {
      display: grid;
      gap: 4px;
    }

    .fox-ve-node-card-port {
      min-width: 0;
      height: 23px;
      display: flex;
      align-items: center;
      gap: 6px;
      border: 0;
      border-radius: 8px;
      background: transparent;
      color: rgba(233,238,248,.82);
      cursor: crosshair;
      padding: 0 4px;
      font-size: 12px;
    }

    .fox-ve-node-card-port:hover {
      background: rgba(255,255,255,.06);
      color: #fff;
    }

    .fox-ve-node-card-outputs .fox-ve-node-card-port { justify-content: flex-end; text-align: right; }
    .fox-ve-node-card-port-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .fox-ve-node-card-port-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      flex: 0 0 auto;
      background: var(--node-color, #0d6efd);
      border: 2px solid rgba(255,255,255,.7);
      box-shadow: 0 0 12px color-mix(in srgb, var(--node-color, #0d6efd) 70%, transparent);
    }

    .fox-ve-node-card-details {
      padding: 8px 10px 10px;
      border-top: 1px solid rgba(255,255,255,.08);
      color: var(--muted);
      font-size: 12px;
      background: rgba(0,0,0,.12);
    }

    .status-strip {
      position: absolute;
      top: 12px;
      left: 12px;
      right: 12px;
      z-index: 3;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      pointer-events: none;
    }

    .pill {
      pointer-events: auto;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(5,7,13,.72);
      border-radius: 999px;
      padding: 6px 9px;
      color: rgba(233,238,248,.82);
      font-size: 12px;
      backdrop-filter: blur(12px);
    }

    .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

    .bottombar {
      display: grid;
      grid-template-columns: .95fr .9fr 1.15fr;
      min-height: 190px;
      overflow: hidden;
    }

    .log-panel,
    .test-panel,
    .probe-panel {
      min-width: 0;
      padding: 12px;
      overflow: auto;
    }

    .log-panel, .test-panel { border-right: 1px solid var(--line); }

    .section-title {
      margin: 0 0 8px;
      color: var(--muted);
      font-size: .85rem;
      text-transform: uppercase;
      letter-spacing: .08em;
    }

    .log-list,
    .test-list,
    .probe-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 6px;
      font-size: .86rem;
    }

    .log-list li,
    .test-list li,
    .probe-list li {
      border: 1px solid rgba(255,255,255,.1);
      background: rgba(255,255,255,.035);
      border-radius: 10px;
      padding: 7px 9px;
      color: rgba(233,238,248,.84);
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      overflow-wrap: anywhere;
    }

    .test-list li.pass, .probe-list li.pass { border-color: rgba(68,208,123,.32); background: rgba(68,208,123,.08); }
    .test-list li.fail, .probe-list li.fail { border-color: rgba(255,93,115,.38); background: rgba(255,93,115,.08); }
    .probe-list li.warn { border-color: rgba(255,200,87,.4); background: rgba(255,200,87,.08); }
    .probe-detail { display: block; margin-top: 4px; color: rgba(233,238,248,.68); font-size: .78rem; white-space: pre-wrap; }
    .app.inject-probe-bugs .fox-ve-node-card-expand { transform: translateY(7px); }

    @media (max-width: 980px) {
      .main { grid-template-columns: 1fr; }
      .bottombar { grid-template-columns: 1fr; }
      .log-panel, .test-panel { border-right: 0; border-bottom: 1px solid var(--line); }
      fox-ve-node-graph { min-height: 520px; }
      .topbar { grid-template-columns: 1fr; }
      .toolbar { justify-content: flex-start; }
    }