:root {
      /* ── Base ──────────────────────────────────────────── */
      --c-bg:             #0a0a0f;
      --c-label-bg-rgb:   8,8,20;         /* RGB triple for rgba() in canvas */

      /* ── Status ────────────────────────────────────────── */
      --c-ok:             #22c55e;
      --c-error:          #ef4444;
      --c-rose:           #f43f5e;
      --c-amber:          #f59e0b;

      /* ── Accent ────────────────────────────────────────── */
      --c-cyan:           #22d3ee;
      --c-sparkline:      #60c8ff;
      --c-sparkline-rgb:  96,200,255;     /* RGB triple */
      --c-p50:            #fbbf24;
      --c-p50-rgb:        251,191,36;     /* RGB triple */
      --c-p95:            #fb923c;

      /* ── Neutral text / UI ─────────────────────────────── */
      --c-muted:          #334155;        /* slate-700 */
      --c-dim:            #475569;        /* slate-600 */
      --c-neutral:        #64748b;        /* slate-500 */
      --c-subtle:         #94a3b8;        /* slate-400 */
      --c-subtle-rgb:     148,163,184;    /* RGB triple */
      --c-on-fill:        #fff;           /* text on coloured fill */

      /* ── Canvas static rgba values ─────────────────────── */
      --c-node-bg-0:      rgba(30,30,50,0.95);
      --c-node-bg-1:      rgba(10,10,20,0.98);
      --c-colguide-stroke: rgba(255,255,255,0.04);
      --c-colguide-fill:   rgba(255,255,255,0.12);
      --c-dot-active:      rgba(96,200,255,0.85);
      --c-dot-inactive:    rgba(255,255,255,0.18);
      --c-sel-ring:        rgba(255,255,255,0.90);

      /* ── Minimap ────────────────────────────────────────── */
      --c-minimap-bg:     rgba(8,8,20,0.88);
      --c-minimap-border: rgba(255,255,255,0.08);
      --c-minimap-edge:   rgba(148,163,184,0.18);
      --c-minimap-vp:     rgba(255,255,255,0.55);

      /* ── Target node palette ────────────────────────────── */
      --p0-fill:  #3b82f6; --p0-text:  #93c5fd;  /* blue    */
      --p1-fill:  #8b5cf6; --p1-text:  #c4b5fd;  /* violet  */
      --p2-fill:  #10b981; --p2-text:  #6ee7b7;  /* emerald */
      --p3-fill:  #f59e0b; --p3-text:  #fcd34d;  /* amber   */
      --p4-fill:  #ec4899; --p4-text:  #f9a8d4;  /* pink    */
      --p5-fill:  #14b8a6; --p5-text:  #5eead4;  /* teal    */
      --p6-fill:  #f43f5e; --p6-text:  #fda4af;  /* rose    */
      --p7-fill:  #6366f1; --p7-text:  #a5b4fc;  /* indigo  */
      --p8-fill:  #0ea5e9; --p8-text:  #7dd3fc;  /* sky     */
      --p9-fill:  #a855f7; --p9-text:  #d8b4fe;  /* purple  */
      --p10-fill: #84cc16; --p10-text: #bef264;  /* lime    */
      --p11-fill: #f97316; --p11-text: #fdba74;  /* orange  */
      --pf-fill:  #64748b; --pf-text:  #94a3b8;  /* fallback */
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html, body { width: 100%; height: 100%; overflow: hidden; background: var(--c-bg); }

    body {
      font-family: 'Inter', system-ui, sans-serif;
      color: #e2e8f0;
    }

    #app {
      position: relative;
      width: 100vw;
      height: 100vh;
    }

    #bg-canvas, #main-canvas {
      display: block;
      position: absolute;
      inset: 0;
    }

    /* ── Minimap ── */
    #minimap {
      position: absolute;
      inset: auto;
      bottom: 20px;
      right: 20px;
      width: 180px;
      height: 120px;
      border-radius: 8px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.6);
      pointer-events: none;
      z-index: 20;
      transition: opacity 0.3s;
    }
    #zoom-hint {
      position: absolute;
      bottom: 148px;
      right: 20px;
      font-size: 9px;
      font-family: 'JetBrains Mono', monospace;
      color: rgba(255,255,255,0.18);
      pointer-events: none;
      z-index: 20;
      text-align: right;
      line-height: 1.6;
    }

    /* ── Header ── */
    #header {
      position: absolute;
      top: 0; left: 0; right: 0;
      min-height: 56px;
      height: auto;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      padding: 0 24px;
      gap: 16px;
      background: rgba(10, 10, 20, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255,255,255,0.06);
      z-index: 10;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-btn {
      background: none;
      border: none;
      padding: 0;
      cursor: pointer;
      border-radius: 8px;
      transition: opacity 0.15s;
    }

    .logo-btn:hover { opacity: 0.75; }

    .logo-mark {
      width: 28px; height: 28px;
      background: linear-gradient(135deg, #6366f1, #8b5cf6);
      border-radius: 8px;
      display: flex; align-items: center; justify-content: center;
      font-size: 14px; font-weight: 700;
      color: white;
      box-shadow: 0 0 16px rgba(99, 102, 241, 0.5);
    }

    .logo-text {
      font-size: 15px;
      font-weight: 600;
      letter-spacing: -0.02em;
      color: #f1f5f9;
    }

    .logo-sub {
      font-size: 12px;
      color: #64748b;
      font-weight: 400;
    }

    .header-spacer { flex: 1; }

    /* ── Header metrics ── */
    #header-metrics {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-right: 6px;
    }
    .hdr-metric {
      display: flex;
      align-items: baseline;
      gap: 4px;
    }
    .hdr-metric-value {
      font-size: 13px;
      font-weight: 600;
      font-family: 'JetBrains Mono', monospace;
      color: #94a3b8;
      min-width: 2.8ch;
      text-align: right;
    }
    .hdr-metric-label {
      font-size: 10px;
      color: #334155;
      font-family: 'Inter', system-ui, sans-serif;
      letter-spacing: 0.04em;
    }
    #span-flash {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: #6366f1;
      box-shadow: 0 0 0 #6366f1;
      opacity: 0;
      transition: opacity 60ms linear, box-shadow 60ms linear;
      flex-shrink: 0;
      margin-right: 2px;
    }
    #span-flash.flash {
      opacity: 1;
      box-shadow: 0 0 8px #818cf8;
    }

    .status-dot {
      width: 7px; height: 7px;
      border-radius: 50%;
      background: #22c55e;
      box-shadow: 0 0 8px #22c55e;
      animation: pulse-dot 2s ease-in-out infinite;
    }

    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.7; transform: scale(1.3); }
    }

    .status-label {
      font-size: 12px;
      color: #64748b;
      font-family: 'JetBrains Mono', monospace;
    }

    /* ── Sidebar ── */

    #tooltip {
      position: absolute;
      pointer-events: none;
      background: rgba(15, 15, 30, 0.96);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 10px;
      padding: 12px 16px;
      font-size: 12px;
      color: #e2e8f0;
      min-width: 200px;
      max-width: 300px;
      z-index: 20;
      backdrop-filter: blur(20px);
      box-shadow: 0 8px 32px rgba(0,0,0,0.5);
      opacity: 0;
      transition: opacity 0.15s;
    }

    .tooltip-title {
      font-weight: 600;
      font-size: 13px;
      margin-bottom: 8px;
      color: #f1f5f9;
    }

    .tooltip-row {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 4px;
      color: #64748b;
    }

    .tooltip-row span:last-child {
      color: #94a3b8;
      font-family: 'JetBrains Mono', monospace;
      font-size: 11px;
    }

    .tooltip-tag {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 10px;
      font-weight: 600;
      margin-top: 8px;
    }

    /* ── Legend ── */
    #legend {
      position: absolute;
      bottom: 20px;
      left: 20px;
      z-index: 10;
      display: flex;
      flex-direction: column;
      gap: 6px;
      background: rgba(10,10,20,0.8);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255,255,255,0.06);
      border-radius: 10px;
      padding: 12px 16px;
      pointer-events: none;
    }

    .legend-title {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #475569;
      margin-bottom: 4px;
    }

    .legend-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 11px;
      color: #64748b;
    }

    .legend-dot {
      width: 10px; height: 10px;
      border-radius: 50%;
    }

    /* ── Help overlay ── */
    /* Old empty-hint inside app — kept for spans/traces empty states */
    #empty-hint {
      position: absolute;
      inset: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      z-index: 10;
      pointer-events: none;
      gap: 16px;
    }

    /* ── Waiting banner (shown when ws param bypassed welcome but no data yet) */
    #waiting-banner {
      position: fixed;
      bottom: 24px;
      left: 50%;
      transform: translateX(-50%);
      background: rgba(20, 30, 55, 0.92);
      border: 1px solid var(--c-border, #2a3a5c);
      border-radius: 8px;
      padding: 10px 18px;
      font-size: 13px;
      color: var(--c-text-dim, #8899bb);
      z-index: 100;
      white-space: nowrap;
    }
    #waiting-banner code {
      color: var(--c-accent, #7eb3ff);
      font-family: monospace;
    }

    /* ── Welcome screen (shown before any data) ────────────────────────────── */
    #welcome-screen {
      position: fixed;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #080e1c;
      z-index: 200;
      transition: opacity 0.4s;
    }

    #welcome-screen.hidden {
      opacity: 0;
      pointer-events: none;
    }

    #welcome-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 20px;
      max-width: 560px;
      width: 100%;
      padding: 40px 24px;
      text-align: center;
    }

    .welcome-desc {
      font-size: 13px;
      color: #475569;
      line-height: 1.6;
      margin: 0;
    }

    .welcome-section {
      width: 100%;
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(255,255,255,0.07);
      border-radius: 10px;
      padding: 18px 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }

    .welcome-section-title {
      font-size: 12px;
      font-weight: 600;
      color: #94a3b8;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .welcome-step {
      font-size: 13px;
      color: #64748b;
    }

    .welcome-divider {
      font-size: 11px;
      color: #334155;
      text-transform: uppercase;
      letter-spacing: 0.1em;
    }

    #welcome-screen #demo-mode-btn {
      padding: 10px 24px;
      background: rgba(100,200,255,0.12);
      border: 1px solid rgba(100,200,255,0.35);
      color: #64c8ff;
      border-radius: 6px;
      cursor: pointer;
      font-family: inherit;
      font-size: 13px;
      font-weight: 500;
      transition: background 0.15s, border-color 0.15s;
    }

    #welcome-screen #demo-mode-btn:hover {
      background: rgba(100,200,255,0.2);
      border-color: rgba(100,200,255,0.6);
    }

    #welcome-screen #demo-mode-btn.demo-active {
      background: rgba(200,100,100,0.15);
      border-color: rgba(200,100,100,0.45);
      color: #ff9999;
    }

    .demo-scenario-options {
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .demo-scenario-option {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 8px 12px;
      border: 1px solid rgba(255,255,255,0.07);
      border-radius: 7px;
      cursor: pointer;
      transition: background 0.12s, border-color 0.12s;
    }

    .demo-scenario-option:has(input:checked) {
      background: rgba(100,200,255,0.07);
      border-color: rgba(100,200,255,0.3);
    }

    .demo-scenario-option input[type="radio"] {
      margin-top: 2px;
      accent-color: #64c8ff;
      flex-shrink: 0;
    }

    .demo-scenario-label {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .demo-scenario-name {
      font-size: 13px;
      font-weight: 500;
      color: #cbd5e1;
    }

    .demo-scenario-desc {
      font-size: 11px;
      color: #475569;
    }

    #welcome-screen #history-mode-btn {
      padding: 10px 24px;
      background: rgba(100,200,255,0.12);
      border: 1px solid rgba(100,200,255,0.35);
      color: #64c8ff;
      border-radius: 6px;
      cursor: pointer;
      font-family: inherit;
      font-size: 13px;
      font-weight: 500;
      transition: background 0.15s, border-color 0.15s;
    }

    #welcome-screen #history-mode-btn:hover {
      background: rgba(100,200,255,0.2);
      border-color: rgba(100,200,255,0.6);
    }

    #welcome-screen #demo-mode-hint {
      font-size: 12px;
      color: #475569;
    }

    #welcome-screen #demo-mode-hint a {
      color: #64c8ff;
      text-decoration: none;
    }

    .ws-bridge-ok-badge {
      font-size: 12px;
      font-weight: 600;
      color: #4ade80;
      background: rgba(74,222,128,0.10);
      border: 1px solid rgba(74,222,128,0.30);
      border-radius: 6px;
      padding: 6px 14px;
      text-align: center;
      width: 100%;
      box-sizing: border-box;
    }
    #ws-bridge-ok {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    #live-connect-btn {
      width: 100%;
      padding: 9px 0;
      background: rgba(74,222,128,0.15);
      border: 1px solid rgba(74,222,128,0.40);
      border-radius: 6px;
      color: #4ade80;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.15s;
    }
    #live-connect-btn:hover { background: rgba(74,222,128,0.25); }
    #live-connect-btn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
      background: rgba(74,222,128,0.15);
    }
    #live-connect-btn:disabled:hover { background: rgba(74,222,128,0.15); }

    #welcome-status {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-top: 8px;
    }

    #app.no-data #bg-canvas,
    #app.no-data #main-canvas { display: none; }

    #app.no-data #header,
    #app.no-data #spans-view,
    #app.no-data #traces-view,
    #app.no-data #stats-view,
    #app.no-data #legend,
    #app.no-data #minimap,
    #app.no-data #zoom-hint { display: none !important; }

    .hint-icon {
      width: 64px; height: 64px;
      border-radius: 16px;
      background: rgba(99,102,241,0.15);
      border: 1px solid rgba(99,102,241,0.3);
      display: flex; align-items: center; justify-content: center;
      font-size: 28px;
    }

    .hint-title {
      font-size: 18px;
      font-weight: 600;
      color: #f1f5f9;
    }

    .hint-sub {
      font-size: 13px;
      color: #475569;
      text-align: center;
      max-width: 320px;
    }

    .hint-code {
      font-family: 'JetBrains Mono', monospace;
      font-size: 12px;
      padding: 8px 16px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 6px;
      color: #94a3b8;
      word-break: break-all;
      overflow-wrap: break-word;
    }

    /* scrollbar */
    ::-webkit-scrollbar { width: 4px; }
    ::-webkit-scrollbar-track { background: transparent; }
    ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

    /* ── Tab bar (right side of header) ── */
    #tab-bar {
      margin-left: auto;
      display: flex;
      gap: 3px;
      align-items: center;
    }

    .tab-btn {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 6px;
      border: 1px solid transparent;
      background: transparent;
      color: #475569;
      font-family: 'Inter', system-ui, sans-serif;
      font-size: 12px;
      font-weight: 500;
      cursor: pointer;
      transition: background 0.15s, color 0.15s, border-color 0.15s;
      position: relative;
    }

    .tab-btn:hover {
      background: rgba(255,255,255,0.05);
      color: #94a3b8;
    }

    .tab-btn.tab-active {
      background: rgba(99, 102, 241, 0.15);
      border-color: rgba(99, 102, 241, 0.3);
      color: #a5b4fc;
    }

    .tab-badge {
      display: none;
      align-items: center;
      justify-content: center;
      min-width: 16px;
      height: 16px;
      padding: 0 4px;
      border-radius: 8px;
      background: #6366f1;
      color: white;
      font-size: 9px;
      font-weight: 700;
      font-family: 'JetBrains Mono', monospace;
      line-height: 1;
    }

    /* Diagram-only elements hidden on other tabs or when no data */
    #app.spans-active      #minimap,
    #app.traces-active     #minimap,
    #app.statistics-active #minimap,
    #app.metrics-active    #minimap,
    #app.logs-active       #minimap,
    #app.spans-active      #zoom-hint,
    #app.traces-active     #zoom-hint,
    #app.statistics-active #zoom-hint,
    #app.metrics-active    #zoom-hint,
    #app.logs-active       #zoom-hint,
    #app.spans-active      #bg-canvas,
    #app.traces-active     #bg-canvas,
    #app.statistics-active #bg-canvas,
    #app.metrics-active    #bg-canvas,
    #app.logs-active       #bg-canvas,
    #app.spans-active      #main-canvas,
    #app.traces-active     #main-canvas,
    #app.statistics-active #main-canvas,
    #app.metrics-active    #main-canvas,
    #app.logs-active       #main-canvas { display: none !important; }

    #app.no-data #bg-canvas,
    #app.no-data #main-canvas,
    #app.no-data #minimap,
    #app.no-data #zoom-hint { display: none !important; }

    /* ── Traces view ── */
    #traces-view {
      display: none;
      position: absolute;
      top: 56px; left: 0; right: 0; bottom: 0;
      background: #0a0a0f;
      z-index: 5;
      flex-direction: row;
      overflow: hidden;
    }
    #app.traces-active #traces-view { display: flex; }
    #app.traces-active #legend,
    #app.traces-active #tooltip,
    #app.traces-active #node-detail,
    #app.traces-active #empty-hint { display: none; }

    #trc-list-panel {
      width: 220px;
      flex-shrink: 0;
      border-right: 1px solid rgba(255,255,255,0.06);
      background: rgba(10,10,20,0.95);
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    #trc-list-header {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px 6px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: #475569;
      flex-shrink: 0;
      flex-wrap: wrap;
    }
    #trc-list-actions {
      display: flex;
      gap: 4px;
      margin-left: auto;
    }
    .trc-list-action-btn {
      padding: 2px 8px;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 4px;
      background: transparent;
      color: #64748b;
      font-size: 10px;
      cursor: pointer;
      font-family: 'Inter', system-ui, sans-serif;
      transition: background 0.12s, color 0.12s;
      text-transform: none;
      letter-spacing: 0;
      font-weight: 400;
    }
    .trc-list-action-btn:hover:not(:disabled) { background: rgba(255,255,255,0.06); color: #94a3b8; }
    .trc-list-action-btn:disabled { opacity: 0.35; cursor: default; }
    #trc-import-preview {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      padding: 8px 14px;
      background: rgba(34,211,238,0.06);
      border-bottom: 1px solid rgba(34,211,238,0.18);
      font-size: 11px;
      color: #94a3b8;
      flex-shrink: 0;
    }
    #trc-import-preview strong { color: #22d3ee; }
    #trc-import-preview em { color: #cbd5e1; font-style: normal; }
    #trc-import-range { display: block; color: #64748b; font-size: 10px; margin-top: 2px; font-family: 'JetBrains Mono', monospace; }
    #trc-import-preview-info { flex: 1; min-width: 0; }
    #trc-import-preview-btns { display: flex; gap: 4px; flex-shrink: 0; }
    .trc-import-confirm {
      padding: 3px 10px;
      border: 1px solid rgba(34,211,238,0.4);
      border-radius: 4px;
      background: rgba(34,211,238,0.1);
      color: #22d3ee;
      font-size: 11px;
      cursor: pointer;
      font-family: 'Inter', system-ui, sans-serif;
    }
    .trc-import-confirm:hover { background: rgba(34,211,238,0.18); }
    .trc-import-cancel {
      padding: 3px 7px;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 4px;
      background: transparent;
      color: #64748b;
      font-size: 11px;
      cursor: pointer;
      font-family: 'Inter', system-ui, sans-serif;
    }
    .trc-import-cancel:hover { background: rgba(255,255,255,0.06); color: #94a3b8; }
    #trc-list-count {
      font-size: 10px;
      background: rgba(99,102,241,0.15);
      color: #6366f1;
      border-radius: 9px;
      padding: 0 6px;
      font-family: 'JetBrains Mono', monospace;
      font-weight: 700;
    }
    #trc-list-frozen {
      font-size: 9px;
      font-family: 'JetBrains Mono', monospace;
      font-weight: 600;
      color: #f59e0b;
      letter-spacing: 0.04em;
      margin-left: auto;
      margin-right: 0;
      opacity: 0.85;
    }
    .trc-list-frozen {
      outline: 1px solid rgba(245,158,11,0.15);
      outline-offset: -1px;
    }
    #trc-list-items {
      flex: 1;
      overflow-y: auto;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
    }
    @keyframes trc-flash-in {
      0%   { background: rgba(99,102,241,0.18); box-shadow: inset 2px 0 0 #6366f1; }
      100% { background: transparent; box-shadow: none; }
    }
    .trc-item {
      padding: 10px 14px 9px;
      border-bottom: 1px solid rgba(255,255,255,0.04);
      cursor: pointer;
      transition: background 0.12s;
    }
    .trc-item-new { animation: trc-flash-in 0.8s ease-out; }
    .trc-item:hover { background: rgba(255,255,255,0.05); }
    .trc-item.trc-selected {
      background: rgba(99,102,241,0.12);
      border-left: 2px solid #6366f1;
      padding-left: 12px;
    }
    #trc-pinned {
      flex-shrink: 0;
      border-bottom: 2px solid rgba(99,102,241,0.30);
      background: rgba(99,102,241,0.06);
    }
    #trc-pinned-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 4px 10px 2px;
    }
    #trc-pinned-label {
      font-size: 9px;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: #6366f1;
      opacity: 0.7;
    }
    #trc-pinned-close {
      background: none;
      border: none;
      color: #475569;
      font-size: 11px;
      line-height: 1;
      padding: 0 2px;
      cursor: pointer;
    }
    #trc-pinned-close:hover { color: #94a3b8; }
    .trc-item-id {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #6366f1;
      margin-bottom: 2px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .trc-item-root {
      font-size: 11px;
      color: #94a3b8;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      margin-bottom: 2px;
    }
    .trc-item-meta {
      display: flex;
      gap: 8px;
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
    }
    .trc-item-dur { color: #22d3ee; }
    .trc-item-cnt { color: #475569; }
    .trc-inst-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      margin-left: auto;
      flex-shrink: 0;
      align-self: center;
      opacity: 0.85;
    }

    #trc-right {
      flex: 1;
      display: flex;
      flex-direction: column;
      overflow: hidden;
      min-width: 0;
    }
    .trc-panel-header {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 7px 16px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
      flex-shrink: 0;
      background: rgba(10,10,20,0.92);
    }
    .trc-panel-label {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: #475569;
    }
    #trc-flame-title {
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #64748b;
      flex: 1;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    #trc-export {
      display: none;
      padding: 3px 10px;
      border: 1px solid rgba(99,102,241,0.28);
      border-radius: 5px;
      background: rgba(99,102,241,0.08);
      color: #818cf8;
      font-size: 11px;
      cursor: pointer;
      transition: background 0.15s, border-color 0.15s;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #trc-export.trc-export-vis { display: inline-block; }
    #trc-export:hover { background: rgba(99,102,241,0.18); border-color: rgba(99,102,241,0.5); }
    #trc-freeze {
      margin-left: 6px;
      padding: 3px 10px;
      border: 1px solid rgba(248,180,0,0.28);
      border-radius: 5px;
      background: rgba(248,180,0,0.06);
      color: #fbbf24;
      font-size: 11px;
      cursor: pointer;
      transition: background 0.15s, border-color 0.15s;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #trc-freeze:hover { background: rgba(248,180,0,0.14); border-color: rgba(248,180,0,0.5); }
    #trc-freeze.trc-freeze-active {
      border-color: rgba(34,211,238,0.5);
      background: rgba(34,211,238,0.08);
      color: #22d3ee;
    }
    #trc-freeze.trc-freeze-active:hover { background: rgba(34,211,238,0.14); }
    #trc-flame-frozen-badge {
      position: absolute;
      bottom: 8px;
      right: 12px;
      font-size: 11px;
      color: #22d3ee;
      opacity: 0.7;
      pointer-events: none;
      letter-spacing: 0.04em;
    }
    #trc-flame-wrap {
      flex: 0 0 55%;
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    /* inner tab bar (Flamegraph / Spans) */
    #trc-detail-tabs {
      display: flex;
      align-items: center;
      gap: 0;
      padding: 0 12px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
      background: rgba(10,10,20,0.92);
      flex-shrink: 0;
    }
    .trc-dtab {
      padding: 6px 14px;
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: #475569;
      background: none;
      border: none;
      border-bottom: 2px solid transparent;
      cursor: pointer;
      transition: color 0.13s, border-color 0.13s;
      font-family: 'Inter', system-ui, sans-serif;
    }
    .trc-dtab:hover { color: #94a3b8; }
    .trc-dtab.trc-dtab-active { color: #818cf8; border-bottom-color: #6366f1; }
    #trc-detail-title {
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #64748b;
      flex: 1;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      padding-left: 8px;
    }
    .trc-correlated-toggle {
      display: flex;
      align-items: center;
      gap: 5px;
      font-size: 11px;
      font-weight: 500;
      color: #818cf8;
      cursor: pointer;
      padding: 0 10px;
      white-space: nowrap;
      flex-shrink: 0;
    }
    .trc-correlated-toggle input { accent-color: #6366f1; cursor: pointer; }
    /* Spans list inside flamegraph panel */
    /* ── Demo banner ──────────────────────────────────────────────────────── */
    #demo-banner {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 3px 10px;
      background: rgba(100,200,255,0.10);
      border: 1px solid rgba(100,200,255,0.30);
      border-radius: 4px;
      color: #64c8ff;
      font-size: 11px;
      font-weight: 500;
      white-space: nowrap;
    }
    #demo-banner.hidden { display: none; }
    #demo-banner button {
      background: none;
      border: 1px solid rgba(100,200,255,0.35);
      color: #64c8ff;
      border-radius: 3px;
      padding: 1px 7px;
      cursor: pointer;
      font-family: inherit;
      font-size: 11px;
      transition: background 0.15s;
    }
    #demo-banner button:hover {
      background: rgba(100,200,255,0.15);
    }

    /* ── Span hide-rules dialog ──────────────────────────────────────────── */
    #hide-rules-btn {
      background: rgba(99,102,241,0.10);
      border: 1px solid rgba(99,102,241,0.22);
      border-radius: 6px;
      color: #818cf8;
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.04em;
      cursor: pointer;
      padding: 4px 10px;
      font-family: 'Inter', system-ui, sans-serif;
      display: flex;
      align-items: center;
      gap: 5px;
      white-space: nowrap;
      margin-right: 8px;
    }
    #hide-rules-btn:hover { background: rgba(99,102,241,0.22); border-color: rgba(99,102,241,0.4); }

    /* ── History toggle ── */
    #history-toggle {
      display: flex;
      align-items: center;
      gap: 5px;
      font-size: 11px;
      font-weight: 600;
      color: var(--c-amber);
      letter-spacing: 0.04em;
      cursor: pointer;
      user-select: none;
      white-space: nowrap;
    }
    #history-toggle input[type=checkbox] {
      accent-color: var(--c-amber);
      cursor: pointer;
    }

    /* ── History controls bar ── */
    #history-controls {
      width: 100%;
      padding: 6px 0 8px;
      border-top: 1px solid rgba(245,158,11,0.15);
      display: flex;
      flex-direction: column;
      gap: 5px;
    }
    .hc-row {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
    }
    .hc-summary-row { min-height: 22px; }
    .hc-playback-row { min-height: 22px; }
    .hc-label {
      font-size: 10px;
      color: var(--c-neutral);
      letter-spacing: 0.06em;
      font-weight: 600;
      text-transform: uppercase;
    }
    /* Range summary text */
    .hc-range-summary {
      font-size: 11px;
      color: var(--c-amber);
      font-family: 'JetBrains Mono', monospace;
      white-space: nowrap;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .hc-range-sep {
      color: rgba(245,158,11,0.45);
      font-size: 10px;
    }
    .hc-range-empty {
      color: var(--c-neutral);
      font-style: italic;
    }
    /* Filter chips */
    .hc-chip {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      background: rgba(245,158,11,0.10);
      border: 1px solid rgba(245,158,11,0.25);
      border-radius: 10px;
      color: var(--c-amber);
      padding: 1px 6px 1px 7px;
      white-space: nowrap;
    }
    .hc-chip-remove {
      background: none;
      border: none;
      color: rgba(245,158,11,0.5);
      font-size: 11px;
      cursor: pointer;
      padding: 0;
      line-height: 1;
    }
    .hc-chip-remove:hover { color: var(--c-amber); }
    /* Spacer */
    .hc-spacer { flex: 1; }
    /* Loading dot */
    .hc-loading-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--c-amber);
      opacity: 0.7;
      animation: hc-pulse 1s ease-in-out infinite;
    }
    @keyframes hc-pulse {
      0%,100% { opacity: 0.3; transform: scale(0.8); }
      50%      { opacity: 0.9; transform: scale(1.2); }
    }
    /* Configure button */
    .hc-configure-btn {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      background: rgba(245,158,11,0.10);
      border: 1px solid rgba(245,158,11,0.25);
      border-radius: 5px;
      color: var(--c-amber);
      font-size: 11px;
      font-weight: 600;
      cursor: pointer;
      padding: 3px 9px;
      font-family: 'Inter', system-ui, sans-serif;
      white-space: nowrap;
    }
    .hc-configure-btn:hover { background: rgba(245,158,11,0.20); }
    .hc-configure-btn-sm { padding: 3px 5px; }
    /* Quick load button (shown before traces are loaded) */
    .hc-load-btn {
      background: rgba(245,158,11,0.10);
      border: 1px solid rgba(245,158,11,0.25);
      border-radius: 5px;
      color: var(--c-amber);
      font-size: 11px;
      font-weight: 600;
      cursor: pointer;
      padding: 3px 10px;
      font-family: 'Inter', system-ui, sans-serif;
      white-space: nowrap;
    }
    .hc-load-btn:hover:not(:disabled) { background: rgba(245,158,11,0.22); }
    .hc-load-btn:disabled { cursor: not-allowed; color: #334155; background: transparent; border-color: rgba(255,255,255,0.04); }
    /* Badges */
    .hc-badge {
      font-size: 10px;
      background: rgba(245,158,11,0.15);
      border: 1px solid rgba(245,158,11,0.3);
      border-radius: 10px;
      color: var(--c-amber);
      padding: 2px 7px;
      font-weight: 600;
      white-space: nowrap;
    }
    .hc-ctrl-btn {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.10);
      border-radius: 5px;
      color: #94a3b8;
      font-size: 12px;
      cursor: pointer;
      padding: 3px 8px;
      line-height: 1;
    }
    .hc-ctrl-btn:hover:not(:disabled) { background: rgba(255,255,255,0.10); color: #e2e8f0; }
    .hc-ctrl-btn:disabled,
    .hc-scrubber:disabled {
      cursor: not-allowed !important;
      pointer-events: auto;
      color: #2d3748 !important;
      background: transparent !important;
      border-color: rgba(255,255,255,0.05) !important;
      box-shadow: none !important;
    }
    .hc-play-btn {
      background: rgba(245,158,11,0.12);
      border-color: rgba(245,158,11,0.3);
      color: var(--c-amber);
      font-size: 13px;
      padding: 2px 9px;
    }
    .hc-play-btn:hover:not(:disabled) { background: rgba(245,158,11,0.22); }
    .hc-play-btn:disabled {
      cursor: not-allowed !important;
      pointer-events: auto;
      color: #2d3748 !important;
      background: transparent !important;
      border-color: rgba(255,255,255,0.05) !important;
    }
    .hc-load-btn:disabled {
      cursor: not-allowed !important;
      color: #2d3748 !important;
      background: transparent !important;
      border-color: rgba(255,255,255,0.05) !important;
    }
    .hc-scrubber {
      flex: 1;
      min-width: 100px;
      max-width: 400px;
      accent-color: var(--c-amber);
      cursor: pointer;
    }
    .hc-cursor-time {
      font-size: 10px;
      color: var(--c-subtle);
      font-family: 'JetBrains Mono', monospace;
      white-space: nowrap;
      min-width: 11ch;
    }
    /* Speed slider */
    .hc-speed-slider {
      width: 80px;
      accent-color: var(--c-amber);
      cursor: pointer;
    }
    .hc-speed-val {
      font-size: 10px;
      color: var(--c-amber);
      font-family: 'JetBrains Mono', monospace;
      min-width: 4ch;
      text-align: right;
    }

    /* ── History config dialog ─────────────────────────────── */
    #hist-dialog-overlay {
      display: flex;
      position: fixed;
      inset: 0;
      z-index: 200;
      background: rgba(0,0,0,0.55);
      align-items: center;
      justify-content: center;
      pointer-events: auto;
    }
    #hist-dialog {
      pointer-events: auto;
      background: #0f172a;
      border: 1px solid rgba(245,158,11,0.22);
      border-radius: 10px;
      box-shadow: 0 12px 40px rgba(0,0,0,0.7), 0 0 0 1px rgba(245,158,11,0.06);
      width: 480px;
      max-width: 95vw;
      max-height: 80vh;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    #hist-dialog-header {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      padding: 10px 14px 9px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      background: rgba(245,158,11,0.04);
    }
    #hist-dialog-title {
      font-size: 13px;
      font-weight: 700;
      color: #e2e8f0;
      font-family: 'Inter', system-ui, sans-serif;
      letter-spacing: -0.01em;
    }
    #hist-dialog-subtitle {
      font-size: 10px;
      color: #475569;
      margin-top: 1px;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #hist-dialog-close {
      background: none;
      border: none;
      color: #475569;
      font-size: 16px;
      cursor: pointer;
      line-height: 1;
      padding: 2px 5px;
      margin-top: -2px;
    }
    #hist-dialog-close:hover { color: #94a3b8; }
    #hist-dialog-body {
      flex: 1;
      overflow-y: auto;
      padding: 0 14px 4px;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
    }
    .hist-section {
      padding: 8px 0 6px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .hist-section:last-child { border-bottom: none; }
    .hist-section-label {
      font-size: 9px;
      font-weight: 700;
      letter-spacing: 0.10em;
      text-transform: uppercase;
      color: var(--c-neutral);
      margin-bottom: 7px;
    }
    .hist-range-row {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      flex-wrap: wrap;
    }
    .hist-field {
      display: flex;
      flex-direction: column;
      gap: 4px;
      min-width: 0;
    }
    .hist-field-wide { flex: 1; }
    .hist-field-label {
      font-size: 9px;
      font-weight: 600;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: #475569;
      font-family: 'Inter', system-ui, sans-serif;
    }
    .hist-datetime, .hist-input {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.10);
      border-radius: 6px;
      color: #e2e8f0;
      font-size: 12px;
      padding: 5px 8px;
      font-family: 'JetBrains Mono', monospace;
      outline: none;
      box-sizing: border-box;
    }
    .hist-datetime { color-scheme: dark; cursor: pointer; }
    .hist-datetime:focus, .hist-input:focus {
      border-color: rgba(245,158,11,0.45);
      background: rgba(245,158,11,0.04);
    }
    .hist-input::placeholder { color: #334155; }
    .hist-input[type="number"] { width: 130px; }
    /* Presets */
    .hist-presets {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-top: 7px;
      flex-wrap: wrap;
    }
    .hist-presets-label {
      font-size: 9px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.07em;
      color: #334155;
      margin-right: 2px;
    }
    .hist-preset-btn {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.09);
      border-radius: 14px;
      color: #64748b;
      font-size: 10px;
      font-weight: 600;
      cursor: pointer;
      padding: 3px 10px;
      font-family: 'Inter', system-ui, sans-serif;
      transition: background 0.12s, color 0.12s;
    }
    .hist-preset-btn:hover {
      background: rgba(245,158,11,0.12);
      border-color: rgba(245,158,11,0.28);
      color: var(--c-amber);
    }
    /* DB hint */
    .hist-db-hint {
      font-size: 10px;
      color: #334155;
      font-family: 'JetBrains Mono', monospace;
      margin-top: 5px;
    }
    /* Filters grid */
    .hist-filters-grid {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      flex-wrap: wrap;
    }
    /* Dialog footer */
    #hist-dialog-footer {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 8px;
      padding: 8px 14px;
      border-top: 1px solid rgba(255,255,255,0.06);
      background: rgba(8,14,28,0.5);
    }
    #hist-dialog-cancel {
      background: none;
      border: 1px solid rgba(255,255,255,0.10);
      border-radius: 6px;
      color: #475569;
      font-size: 12px;
      cursor: pointer;
      padding: 5px 14px;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #hist-dialog-cancel:hover { color: #94a3b8; border-color: rgba(255,255,255,0.20); }
    #hist-dialog-load {
      background: rgba(245,158,11,0.15);
      border: 1px solid rgba(245,158,11,0.35);
      border-radius: 6px;
      color: var(--c-amber);
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      padding: 5px 18px;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #hist-dialog-load:hover:not(:disabled) { background: rgba(245,158,11,0.28); }
    #hist-dialog-load:disabled {
      cursor: not-allowed !important;
      color: #2d3748 !important;
      background: transparent !important;
      border-color: rgba(255,255,255,0.05) !important;
    }

    /* ── Demo config dialog ──────────────────────────────────────────────── */
    #dcfg-overlay {
      display: flex;
      position: fixed;
      inset: 0;
      z-index: 200;
      background: rgba(0,0,0,0.55);
      align-items: center;
      justify-content: center;
    }
    #dcfg-dialog {
      background: #0f172a;
      border: 1px solid rgba(100,200,255,0.22);
      border-radius: 10px;
      box-shadow: 0 12px 40px rgba(0,0,0,0.7), 0 0 0 1px rgba(100,200,255,0.06);
      width: 400px;
      max-width: 95vw;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    #dcfg-header {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      padding: 10px 14px 9px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      background: rgba(100,200,255,0.04);
    }
    #dcfg-title {
      font-size: 13px;
      font-weight: 700;
      color: #e2e8f0;
      letter-spacing: -0.01em;
    }
    #dcfg-subtitle {
      font-size: 10px;
      color: #475569;
      margin-top: 1px;
    }
    #dcfg-close {
      background: none;
      border: none;
      color: #475569;
      font-size: 16px;
      cursor: pointer;
      line-height: 1;
      padding: 2px 5px;
      margin-top: -2px;
    }
    #dcfg-close:hover { color: #94a3b8; }
    #dcfg-body {
      padding: 8px 14px 4px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .dcfg-row { display: flex; flex-direction: column; gap: 4px; }
    .dcfg-row-head {
      display: flex;
      align-items: baseline;
      gap: 6px;
    }
    .dcfg-label {
      font-size: 11px;
      font-weight: 600;
      color: #cbd5e1;
    }
    .dcfg-sub {
      font-size: 9px;
      color: #475569;
      flex: 1;
    }
    .dcfg-val {
      font-size: 11px;
      font-weight: 700;
      color: #64c8ff;
      font-family: 'JetBrains Mono', monospace;
      margin-left: auto;
    }
    .dcfg-slider {
      -webkit-appearance: none;
      appearance: none;
      width: 100%;
      height: 4px;
      border-radius: 2px;
      background: rgba(100,200,255,0.18);
      outline: none;
      cursor: pointer;
    }
    .dcfg-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: #64c8ff;
      box-shadow: 0 0 6px rgba(100,200,255,0.5);
      cursor: pointer;
    }
    .dcfg-slider::-moz-range-thumb {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: #64c8ff;
      border: none;
      cursor: pointer;
    }
    .dcfg-range-labels {
      display: flex;
      justify-content: space-between;
      font-size: 9px;
      color: #334155;
      font-family: 'JetBrains Mono', monospace;
    }
    #dcfg-footer {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 8px;
      padding: 10px 14px;
      border-top: 1px solid rgba(255,255,255,0.06);
      background: rgba(8,14,28,0.5);
    }
    #dcfg-reset {
      background: none;
      border: 1px solid rgba(255,255,255,0.10);
      border-radius: 6px;
      color: #475569;
      font-size: 11px;
      cursor: pointer;
      padding: 5px 12px;
      margin-right: auto;
    }
    #dcfg-reset:hover { color: #94a3b8; border-color: rgba(255,255,255,0.20); }
    #dcfg-close-btn {
      background: rgba(100,200,255,0.12);
      border: 1px solid rgba(100,200,255,0.30);
      border-radius: 6px;
      color: #64c8ff;
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      padding: 5px 18px;
    }
    #dcfg-close-btn:hover { background: rgba(100,200,255,0.22); }

    #hide-dialog-overlay {
      display: flex;
      position: fixed;
      inset: 0;
      z-index: 200;
      background: rgba(0,0,0,0.55);
      align-items: center;
      justify-content: center;
    }
    #hide-dialog {
      background: #0f172a;
      border: 1px solid rgba(99,102,241,0.25);
      border-radius: 10px;
      box-shadow: 0 24px 64px rgba(0,0,0,0.7);
      width: 480px;
      max-width: 94vw;
      max-height: 80vh;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    #hide-dialog-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 16px 12px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    #hide-dialog-title {
      font-size: 13px;
      font-weight: 600;
      color: #e2e8f0;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #hide-dialog-subtitle {
      font-size: 10px;
      color: #475569;
      margin-top: 2px;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #hide-dialog-close {
      background: none;
      border: none;
      color: #475569;
      font-size: 16px;
      cursor: pointer;
      line-height: 1;
      padding: 2px 5px;
    }
    #hide-dialog-close:hover { color: #94a3b8; }
    #hide-dialog-instance {
      padding: 10px 16px 8px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      flex-shrink: 0;
    }
    .hide-dialog-section-title {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #475569;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hide-inst-show-all {
      font-size: 9px;
      font-weight: 500;
      text-transform: none;
      letter-spacing: 0;
      color: #6366f1;
      background: none;
      border: none;
      padding: 0;
      cursor: pointer;
      line-height: 1;
    }
    .hide-inst-show-all:hover { color: #a5b4fc; }
    #hide-inst-list {
      display: flex;
      flex-wrap: wrap;
      gap: 4px 10px;
    }
    .hide-inst-row {
      display: flex;
      align-items: center;
      gap: 5px;
      cursor: pointer;
    }
    .hide-inst-row input[type="checkbox"] { accent-color: #6366f1; cursor: pointer; }
    .hide-inst-label {
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #94a3b8;
    }
    .hide-inst-row:has(input:not(:checked)) .hide-inst-label { color: #475569; }
    #hide-dialog-rules {
      flex: 1;
      overflow-y: auto;
      padding: 8px 12px;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
    }
    .hide-dialog-empty {
      font-size: 11px;
      color: #334155;
      font-family: 'JetBrains Mono', monospace;
      padding: 14px 4px 6px;
      text-align: center;
    }
    .hide-rule-header {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 2px 8px 4px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      margin-bottom: 4px;
    }
    .hide-rule-header-cell {
      font-size: 9px;
      font-family: 'JetBrains Mono', monospace;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #334155;
    }
    .hide-rule-header-cell:first-child  { flex: 2; min-width: 0; }
    .hide-rule-header-cell:nth-child(2) { flex: 1; min-width: 0; }
    .hide-rule-header-cell:last-child   { width: 22px; flex-shrink: 0; }
    .hide-rule-row {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 5px 8px;
      border-radius: 5px;
      margin-bottom: 3px;
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(255,255,255,0.05);
    }
    .hide-rule-row:hover { background: rgba(255,255,255,0.055); }
    .hide-rule-label {
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #94a3b8;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      min-width: 0;
    }
    .hide-rule-label:first-child  { flex: 2; }
    .hide-rule-label:nth-child(2) { flex: 1; }
    .hide-rule-remove {
      background: none;
      border: none;
      color: #475569;
      font-size: 15px;
      cursor: pointer;
      line-height: 1;
      padding: 0 3px;
    }
    .hide-rule-remove:hover { color: #f87171; }
    #hide-dialog-add {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 10px 12px;
      border-top: 1px solid rgba(255,255,255,0.06);
      background: rgba(8,14,28,0.5);
    }
    #hide-rule-target, #hide-rule-name {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 4px;
      color: #94a3b8;
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      padding: 4px 8px;
      outline: none;
    }
    #hide-rule-target { flex: 2; min-width: 0; }
    #hide-rule-name  { flex: 1; min-width: 0; }
    #hide-rule-target:focus, #hide-rule-name:focus { border-color: rgba(99,102,241,0.4); }
    #hide-rule-target::placeholder, #hide-rule-name::placeholder { color: #334155; }
    #hide-rule-add {
      background: rgba(99,102,241,0.12);
      border: 1px solid rgba(99,102,241,0.22);
      border-radius: 4px;
      color: #818cf8;
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      padding: 4px 12px;
      white-space: nowrap;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #hide-rule-add:hover { background: rgba(99,102,241,0.24); }
    #hide-dialog-footer {
      display: flex;
      justify-content: flex-end;
      padding: 8px 12px;
      border-top: 1px solid rgba(255,255,255,0.04);
    }
    #hide-rules-reset {
      background: none;
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 4px;
      color: #475569;
      font-size: 11px;
      cursor: pointer;
      padding: 3px 10px;
      font-family: 'Inter', system-ui, sans-serif;
    }
    #hide-rules-reset:hover { color: #94a3b8; border-color: rgba(255,255,255,0.18); }
    #hide-dialog-help {
      font-size: 10px;
      color: #334155;
      padding: 0 12px 10px;
      font-family: 'Inter', system-ui, sans-serif;
      line-height: 1.5;
    }
    #hide-dialog-help code {
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
    }
    #trc-spans-area {
      display: none;
      flex: 1;
      overflow: auto;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
      background: rgba(8,14,28,0.6);
    }
    #trc-spans-area.trc-panel-active { display: block; }
    #trc-spans-toolbar {
      display: none;
      padding: 5px 10px;
      border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    .trc-show-hidden-label {
      display: flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
      font-size: 10px;
      color: var(--c-dim);
      font-family: 'JetBrains Mono', monospace;
      user-select: none;
    }
    .trc-show-hidden-label:hover { color: var(--c-subtle); }
    .trc-show-hidden-label input[type="checkbox"] { accent-color: #6366f1; cursor: pointer; }
    .trc-show-hidden-label input[type="checkbox"]:disabled { opacity: 0.35; cursor: default; }
    .trc-sp-hidden td { opacity: 0.35; font-style: italic; }
    .trc-log-row td { padding-top: 1px; padding-bottom: 2px; background: rgba(255,255,255,0.015); border-bottom: none; }
    .trc-log-body { font-size: 10px; color: #94a3b8; white-space: pre-wrap; word-break: break-all; }
    .trc-log-sev {
      display: inline-block;
      font-size: 9px;
      font-weight: 700;
      padding: 0 4px;
      border-radius: 3px;
      margin-right: 6px;
      letter-spacing: 0.04em;
      vertical-align: middle;
    }
    .trc-log-sev-info  { background: rgba(34,211,238,0.12); color: #22d3ee; }
    .trc-log-sev-warn  { background: rgba(251,191,36,0.12); color: #fbbf24; }
    .trc-log-sev-error { background: rgba(248,113,113,0.15); color: #f87171; }
    #trc-flame-area.trc-panel-active { display: block; overflow-x: auto; overflow-y: hidden; position: relative; }
    #trc-flame-area { display: none; }
    #trc-spans-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
    }
    #trc-spans-table thead th {
      position: sticky;
      top: 0;
      background: rgba(10,10,20,0.97);
      padding: 6px 10px;
      text-align: left;
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: #475569;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      z-index: 1;
    }
    #trc-spans-table td {
      padding: 5px 10px;
      border-bottom: 1px solid rgba(255,255,255,0.03);
      color: #94a3b8;
      white-space: nowrap;
      vertical-align: top;
      max-width: 300px;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    #trc-spans-table tr:hover td { background: rgba(255,255,255,0.02); }
    .trc-sp-name { color: #e2e8f0; }
    .trc-sp-target { color: #6366f1; font-size: 10px; }
    .trc-sp-dur { color: #22d3ee; text-align: right; }
    .trc-sp-err { color: #f43f5e; }
    .trc-sp-ok  { color: #22c55e; }
    #trc-spans-no-trace {
      padding: 24px;
      font-size: 12px;
      color: #1e293b;
      font-family: 'JetBrains Mono', monospace;
    }
    #trc-no-trace {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      color: #1e293b;
      font-family: 'JetBrains Mono', monospace;
      pointer-events: none;
    }
    #trc-canvas { display: block; cursor: crosshair; min-width: 100%; }

    /* ── Flamegraph hover tooltip ───────────────────────────────────────── */
    #fg-tip {
      position: fixed;
      z-index: 9999;
      pointer-events: none;
      background: rgba(10, 16, 32, 0.97);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 6px;
      padding: 8px 10px;
      min-width: 180px;
      max-width: 320px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.5);
      font-family: 'Inter', system-ui, sans-serif;
    }
    .fg-tip-name {
      font-size: 11px;
      font-weight: 600;
      color: #e2e8f0;
      margin-bottom: 7px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .fg-tip-row {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 12px;
      margin-bottom: 3px;
    }
    .fg-tip-label {
      font-size: 9px;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: #475569;
      flex-shrink: 0;
    }
    .fg-tip-mono {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #94a3b8;
      text-align: right;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    #trc-mermaid-wrap {
      flex: 1;
      display: flex;
      flex-direction: column;
      overflow: hidden;
      position: relative;
    }
    #trc-mermaid-hint {
      font-size: 10px;
      color: #475569;
      font-family: 'JetBrains Mono', monospace;
    }
    #trc-mermaid {
      flex: 1;
      overflow: hidden;
      position: relative;
      cursor: grab;
      user-select: none;
      contain: layout style paint;
    }
    #trc-mermaid.dragging { cursor: grabbing; }
    #trc-mermaid-inner {
      position: absolute;
      top: 0;
      left: 0;
      transform-origin: 0 0;
      padding: 12px 16px;
    }
    #trc-mermaid-inner svg { display: block; }
    #trc-mermaid-empty {
      color: #1e293b;
      font-family: 'JetBrains Mono', monospace;
      font-size: 12px;
      padding: 20px;
    }
    #trc-mermaid-inner .node.trc-hl-active rect,
    #trc-mermaid-inner .node.trc-hl-active path,
    #trc-mermaid-inner .node.trc-hl-active circle {
      stroke: #6366f1 !important;
      stroke-width: 2.5px !important;
      filter: drop-shadow(0 0 6px rgba(99,102,241,0.6));
    }
    #trc-mermaid-inner .node.trc-hl-dim { opacity: 0.25; }

    /* pan/zoom minimap */
    #trc-mm {
      position: absolute;
      right: 12px;
      bottom: 12px;
      width: 140px;
      height: 90px;
      border: 1px solid rgba(255,255,255,0.10);
      border-radius: 6px;
      background: rgba(8,14,28,0.85);
      backdrop-filter: blur(6px);
      cursor: crosshair;
      display: none;
      overflow: hidden;
    }
    #trc-mm-canvas {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      border-radius: 5px;
      opacity: 0.72;
    }
    #trc-mm-viewport {
      position: absolute;
      border: 1.5px solid rgba(99,102,241,0.85);
      background: rgba(99,102,241,0.10);
      box-sizing: border-box;
      z-index: 1;
      pointer-events: none;
    }
    /* zoom controls */
    #trc-zoom-btns {
      position: absolute;
      right: 12px;
      top: 8px;
      display: flex;
      flex-direction: column;
      gap: 2px;
      z-index: 2;
    }
    .trc-zoom-btn {
      width: 22px; height: 20px;
      background: rgba(10,10,20,0.85);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 4px;
      color: #64748b;
      font-size: 13px;
      line-height: 1;
      cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: color 0.12s, background 0.12s;
    }
    .trc-zoom-btn:hover { color: #e2e8f0; background: rgba(99,102,241,0.15); }
    #trc-mermaid svg { display: block; }
    #trc-mermaid .trc-mermaid-empty {
      font-size: 12px;
      color: #1e293b;
      font-family: 'JetBrains Mono', monospace;
      margin-top: 20px;
    }

    /* ── Spans view panel ── */
    #spans-view {
      display: none;
      position: absolute;
      top: 56px; left: 0; right: 0; bottom: 0;
      background: #0a0a0f;
      z-index: 5;
      flex-direction: column;
    }

    #app.spans-active #spans-view { display: flex; }

    /* Hide diagram-only chrome when spans tab is active */
    #app.spans-active #legend,
    #app.spans-active #tooltip,
    #app.spans-active #node-detail,
    #app.spans-active #empty-hint { display: none; }

    /* ── Node detail panel ── */
    #node-detail {
      position: absolute;
      top: 92px;
      left: 0;
      bottom: 0;
      width: 0;
      overflow: hidden;
      background: rgba(8, 8, 20, 0.97);
      backdrop-filter: blur(18px);
      border-right: 1px solid rgba(255,255,255,0.07);
      z-index: 15;
      display: flex;
      flex-direction: column;
      transition: width 0.22s cubic-bezier(0.4,0,0.2,1);
    }
    #node-detail.nd-open { width: 420px; }
    #node-detail-inner {
      width: 420px;
      display: flex;
      flex-direction: column;
      flex: 1;
      min-height: 0;
      padding: 0;
    }
    #nd-header {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 14px 18px 12px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      flex-shrink: 0;
    }
    #nd-dot {
      width: 10px; height: 10px;
      border-radius: 50%;
      flex-shrink: 0;
    }
    #nd-title {
      font-size: 13px;
      font-weight: 600;
      color: #e2e8f0;
      font-family: 'JetBrains Mono', monospace;
      flex: 1;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    #nd-breadcrumb {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      padding: 6px 18px 8px;
      flex-shrink: 0;
      border-bottom: 1px solid rgba(255,255,255,0.04);
      display: flex;
      align-items: center;
      flex-wrap: nowrap;
      gap: 0;
      white-space: nowrap;
      overflow-x: auto;
      overflow-y: hidden;
      scrollbar-width: none;
    }
    #nd-breadcrumb::-webkit-scrollbar { display: none; }
    .nd-bc-node {
      color: #475569;
      cursor: pointer;
      padding: 1px 4px;
      border-radius: 3px;
      white-space: nowrap;
      flex-shrink: 0;
    }
    .nd-bc-node:hover { color: #94a3b8; background: rgba(255,255,255,0.05); }
    .nd-bc-current {
      font-weight: 600;
      padding: 1px 5px;
      border-radius: 3px;
      white-space: nowrap;
      flex-shrink: 0;
    }
    .nd-bc-sep {
      color: #1e293b;
      padding: 0 1px;
      user-select: none;
      flex-shrink: 0;
    }
    #nd-close {
      background: none;
      border: none;
      color: #475569;
      font-size: 16px;
      cursor: pointer;
      padding: 2px 6px;
      border-radius: 4px;
      flex-shrink: 0;
      line-height: 1;
    }
    #nd-close:hover { color: #94a3b8; background: rgba(255,255,255,0.05); }
    #nd-count {
      font-size: 9px;
      color: #334155;
      font-family: 'JetBrains Mono', monospace;
      padding: 6px 18px;
      flex-shrink: 0;
    }
    #nd-stats {
      display: flex;
      gap: 6px;
      padding: 10px 16px 8px;
      flex-shrink: 0;
      border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    .nd-stat-card {
      flex: 1;
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(255,255,255,0.06);
      border-radius: 6px;
      padding: 6px 4px;
      text-align: center;
    }
    .nd-stat-label {
      font-size: 8px;
      color: #475569;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      font-family: 'JetBrains Mono', monospace;
    }
    .nd-stat-value {
      font-size: 12px;
      font-weight: 600;
      color: #e2e8f0;
      margin-top: 2px;
      font-family: 'JetBrains Mono', monospace;
    }
    #nd-sparkline {
      flex-shrink: 0;
      border-top: 1px solid rgba(255,255,255,0.04);
      border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    #nd-viz-toolbar {
      display: flex;
      gap: 2px;
      padding: 5px 16px 0;
    }
    #nd-viz-tabs {
      display: flex;
      gap: 2px;
    }
    #nd-viz-area {
      padding: 2px 16px 5px;
    }
    #nd-viz-area canvas { display: block; position: static; }
    .nd-viz-tab {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
      background: none;
      border: 1px solid #1e293b;
      border-radius: 4px 4px 0 0;
      padding: 2px 10px;
      cursor: pointer;
      transition: color 0.15s, border-color 0.15s, background 0.15s;
    }
    .nd-viz-tab:hover { color: #94a3b8; border-color: #334155; }
    .nd-viz-tab.active {
      color: #60c8ff;
      border-color: #334155;
      background: rgba(96,200,255,0.06);
      border-bottom-color: transparent;
    }
    #spk-tip {
      position: fixed;
      pointer-events: none;
      background: #0f172a;
      border: 1px solid #334155;
      border-radius: 4px;
      padding: 2px 7px;
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #60c8ff;
      opacity: 0;
      transition: opacity 0.1s;
      z-index: 9999;
      white-space: nowrap;
    }
    #nd-table-wrap {
      flex: 1;
      min-height: 0;
      overflow-y: auto;
      overflow-x: hidden;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
    }
    #nd-table {
      width: 100%;
      border-collapse: collapse;
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
    }
    #nd-table thead th {
      position: sticky;
      top: 0;
      background: rgba(8,8,20,0.98);
      color: #334155;
      font-size: 9px;
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      padding: 6px 12px;
      text-align: left;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    #nd-table tbody tr {
      border-bottom: 1px solid rgba(255,255,255,0.03);
      transition: background 0.1s;
    }
    #nd-table tbody tr:hover { background: rgba(255,255,255,0.03); }
    #nd-table td {
      padding: 5px 12px;
      color: #64748b;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 180px;
    }
    #nd-table td.nd-time { color: #334155; font-size: 9px; }
    #nd-table td.nd-dur  { color: #22d3ee; text-align: right; }
    #nd-table td.nd-trace { color: #475569; }

    /* ── Filter bar ── */
    #spans-filter-bar {
      flex-shrink: 0;
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 7px 20px;
      background: rgba(10, 10, 20, 0.97);
      border-bottom: 1px solid rgba(255,255,255,0.06);
      flex-wrap: wrap;
    }

    .filter-group {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .filter-group label {
      font-size: 11px;
      color: #475569;
      white-space: nowrap;
      font-family: 'JetBrains Mono', monospace;
    }

    .filter-input {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 5px;
      padding: 3px 8px;
      font-size: 11px;
      color: #e2e8f0;
      font-family: 'JetBrains Mono', monospace;
      outline: none;
      width: 150px;
      transition: border-color 0.15s;
    }
    .filter-input:focus { border-color: rgba(99,102,241,0.5); }
    .filter-input::placeholder { color: #334155; }
    .filter-input-short { width: 62px; }

    .filter-unit { font-size: 10px; color: #334155; font-family: 'JetBrains Mono', monospace; }

    #spv-clear-btn {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.10);
      border-radius: 5px;
      padding: 3px 10px;
      font-size: 11px;
      color: #94a3b8;
      font-family: 'JetBrains Mono', monospace;
      cursor: pointer;
      transition: background 0.15s, color 0.15s, border-color 0.15s;
      white-space: nowrap;
    }
    #spv-clear-btn:hover {
      background: rgba(239,68,68,0.12);
      border-color: rgba(239,68,68,0.35);
      color: #fca5a5;
    }

    /* ── MultiSelect widget ── */
    .ms-wrap {
      position: relative;
      display: inline-flex;
    }

    .ms-btn {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 3px 9px 3px 8px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 5px;
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
      cursor: pointer;
      white-space: nowrap;
      transition: border-color 0.15s, color 0.15s;
      min-width: 80px;
    }
    .ms-btn:hover { border-color: rgba(255,255,255,0.15); color: #94a3b8; }
    .ms-btn.ms-active { border-color: rgba(99,102,241,0.5); color: #a5b4fc; background: rgba(99,102,241,0.1); }
    .ms-btn::after { content: ' ▾'; opacity: 0.5; font-size: 9px; }

    .ms-dropdown {
      position: absolute;
      top: calc(100% + 4px);
      left: 0;
      min-width: 180px;
      max-height: 240px;
      overflow-y: auto;
      background: rgba(14, 14, 28, 0.98);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 7px;
      box-shadow: 0 8px 24px rgba(0,0,0,0.6);
      z-index: 50;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
    }

    .ms-search {
      display: block;
      width: 100%;
      padding: 7px 10px;
      background: transparent;
      border: none;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #e2e8f0;
      outline: none;
    }
    .ms-search::placeholder { color: #334155; }

    .ms-item {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 5px 10px;
      cursor: pointer;
      border-radius: 0;
      transition: background 0.1s;
    }
    .ms-item:hover { background: rgba(255,255,255,0.05); }
    .ms-item input[type=checkbox] { accent-color: #6366f1; flex-shrink: 0; cursor: pointer; }
    .ms-item-text {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #94a3b8;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      max-width: 240px;
    }
    .ms-list {
      max-height: 200px;
      overflow-y: auto;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
    }
    .ms-empty {
      padding: 10px;
      font-size: 11px;
      color: #334155;
      font-family: 'JetBrains Mono', monospace;
      text-align: center;
    }

    #f-clear {
      padding: 3px 10px;
      border-radius: 5px;
      border: 1px solid rgba(255,255,255,0.08);
      background: rgba(255,255,255,0.04);
      color: #64748b;
      font-size: 11px;
      cursor: pointer;
      transition: background 0.15s, color 0.15s;
    }
    #f-clear:hover { background: rgba(255,255,255,0.08); color: #94a3b8; }

    #f-match {
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #6366f1;
      display: none;
    }

    /* ── Spans body (table + detail side by side) ── */
    #spans-body {
      flex: 1;
      display: flex;
      overflow: hidden;
    }

    #spans-wrap {
      flex: 1;
      overflow-y: auto;
      overflow-x: auto;
      position: relative;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.1) transparent;
    }

    #spans-footer {
      flex-shrink: 0;
      height: 32px;
      display: flex;
      align-items: center;
      padding: 0 20px;
      gap: 16px;
      border-top: 1px solid rgba(255,255,255,0.06);
      background: rgba(10, 10, 20, 0.95);
      font-size: 11px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
    }

    #spans-empty {
      position: absolute;
      inset: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 12px;
      pointer-events: none;
      z-index: 1;
    }

    /* ── Span detail drawer ── */
    #span-detail {
      width: 0;
      overflow: hidden;
      background: rgba(8, 8, 18, 0.99);
      border-left: 1px solid rgba(255,255,255,0.07);
      flex-shrink: 0;
      transition: width 0.18s ease;
      display: flex;
      flex-direction: column;
    }
    #span-detail.dp-open { width: 340px; }

    .dp-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px 10px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      gap: 8px;
      flex-shrink: 0;
    }
    .dp-name {
      font-size: 13px;
      font-weight: 600;
      color: #f1f5f9;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .dp-close {
      flex-shrink: 0;
      background: transparent;
      border: none;
      color: #475569;
      cursor: pointer;
      font-size: 14px;
      padding: 2px 5px;
      border-radius: 4px;
    }
    .dp-close:hover { background: rgba(255,255,255,0.06); color: #94a3b8; }

    .dp-body {
      flex: 1;
      overflow-y: auto;
      padding: 10px 0;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.08) transparent;
    }
    .dp-section {
      padding: 0 16px 10px;
      border-bottom: 1px solid rgba(255,255,255,0.04);
      margin-bottom: 10px;
    }
    .dp-section:last-child { border-bottom: none; margin-bottom: 0; }
    .dp-section-title {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #334155;
      margin-bottom: 7px;
    }
    .dp-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 5px; }
    .dp-label { font-size: 11px; color: #475569; min-width: 68px; flex-shrink: 0; }
    .dp-mono { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: #94a3b8; word-break: break-all; }
    .dp-small { font-size: 10px; color: #64748b; }

    .dp-attrs { width: 100%; border-collapse: collapse; }
    .da-key {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #64748b;
      padding: 2px 8px 2px 0;
      vertical-align: top;
      width: 35%;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .da-val {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #94a3b8;
      padding: 2px 0;
      word-break: break-all;
    }

    /* ── Spans table ── */
    #spans-table {
      width: 100%;
      min-width: 640px;
      border-collapse: collapse;
      table-layout: fixed;
    }

    #spans-table thead {
      position: sticky;
      top: 0;
      z-index: 2;
    }

    #spans-table thead th {
      padding: 8px 12px;
      text-align: left;
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: #475569;
      background: rgba(10, 10, 20, 0.98);
      border-bottom: 1px solid rgba(255,255,255,0.08);
      white-space: nowrap;
      user-select: none;
    }

    /* Column widths */
    .c-time   { width: 108px; }
    .c-trace  { width: 80px; }
    .c-name   { /* flex */ }
    .c-target { width: 180px; }
    .c-instance { width: 130px; color: #64748b; }
    .c-dur    { width: 80px; text-align: right !important; }

    /* Row */
    .span-row { cursor: pointer; transition: background 0.08s; }
    .span-row:hover td { background: rgba(255,255,255,0.025); }
    .span-row.row-selected td { background: rgba(99,102,241,0.1) !important; }

    .span-row td {
      padding: 5px 12px;
      font-size: 12px;
      color: #94a3b8;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      border-bottom: 1px solid rgba(255,255,255,0.03);
    }

    /* New-row flash animation */
    @keyframes row-flash {
      from { background: rgba(99, 102, 241, 0.18); }
      to   { background: transparent; }
    }

    .span-row.nr td { animation: row-flash 0.6s ease-out forwards; }

    .mono { font-family: 'JetBrains Mono', monospace; }
    .c-time.mono { color: #475569; font-size: 11px; }

    .trace-chip {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      font-weight: 500;
      letter-spacing: 0.04em;
    }

    .cat-dot {
      display: inline-block;
      width: 6px; height: 6px;
      border-radius: 50%;
      margin-right: 6px;
      vertical-align: middle;
      margin-top: -1px;
      flex-shrink: 0;
    }

    .tgt-text {
      font-family: 'JetBrains Mono', monospace;
      font-size: 11px;
      color: #64748b;
    }

    /* Duration colouring */
    .dur-md  { color: #f59e0b !important; }
    .dur-sl  { color: #f97316 !important; }
    .dur-vsl { color: #ef4444 !important; }

    /* Status badge (used in detail panel) */
    .st-badge {
      display: inline-block;
      padding: 1px 6px;
      border-radius: 3px;
      font-size: 9px;
      font-weight: 600;
      letter-spacing: 0.04em;
      font-family: 'JetBrains Mono', monospace;
      text-transform: uppercase;
    }
    .st-ok  { background: rgba(16, 185, 129, 0.15); color: #10b981; }
    .st-err { background: rgba(239,  68,  68, 0.15); color: #ef4444; }
    /* ── Statistics view ── */
    #stats-view {
      display: none;
      position: absolute;
      top: 56px; left: 0; right: 0; bottom: 0;
      background: #0a0a0f;
      z-index: 5;
      overflow-y: auto;
      overflow-x: hidden;
      padding: 24px 28px 36px;
    }
    #app.statistics-active #stats-view { display: block; }
    #app.statistics-active #legend,
    #app.statistics-active #tooltip,
    #app.statistics-active #node-detail,
    #app.statistics-active #empty-hint { display: none; }

    #stats-empty {
      display: flex;
      align-items: center;
      justify-content: center;
      height: 200px;
      color: #475569;
      font-size: 13px;
    }

    /* Toolbar */
    #stats-toolbar {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 18px;
    }
    #stats-snapshot-label {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #334155;
    }
    .stats-pause-btn,
    .stats-resume-btn {
      padding: 3px 10px;
      border-radius: 5px;
      border: 1px solid rgba(255,255,255,0.08);
      background: rgba(255,255,255,0.04);
      color: #64748b;
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      cursor: pointer;
      transition: background 0.12s, color 0.12s;
    }
    .stats-pause-btn:hover  { background: rgba(255,255,255,0.08); color: #94a3b8; }
    .stats-resume-btn {
      background: rgba(99,102,241,0.12);
      border-color: rgba(99,102,241,0.3);
      color: #a5b4fc;
    }
    .stats-resume-btn:hover { background: rgba(99,102,241,0.22); color: #c7d2fe; }
    .stats-last-refresh {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #334155;
    }
    .stats-countdown {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
      min-width: 36px;
    }
    .stats-freq-btn {
      padding: 2px 8px;
      border-radius: 5px;
      border: 1px solid rgba(255,255,255,0.07);
      background: transparent;
      color: #475569;
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      cursor: pointer;
      transition: background 0.12s, color 0.12s;
    }
    .stats-freq-btn:hover { background: rgba(255,255,255,0.05); color: #94a3b8; }
    .stats-freq-editor {
      display: flex;
      align-items: center;
      gap: 5px;
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
    }
    .stats-freq-input {
      width: 44px;
      padding: 1px 5px;
      border-radius: 4px;
      border: 1px solid rgba(99,102,241,0.4);
      background: rgba(99,102,241,0.08);
      color: #a5b4fc;
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      text-align: center;
      outline: none;
    }
    .stats-freq-preset {
      padding: 1px 6px;
      border-radius: 4px;
      border: 1px solid rgba(255,255,255,0.07);
      background: rgba(255,255,255,0.04);
      color: #64748b;
      font-size: 9px;
      font-family: 'JetBrains Mono', monospace;
      cursor: pointer;
      transition: background 0.1s, color 0.1s;
    }
    .stats-freq-preset:hover { background: rgba(99,102,241,0.15); color: #a5b4fc; border-color: rgba(99,102,241,0.3); }
    .stats-freq-ok {
      padding: 1px 6px;
      border-radius: 4px;
      border: 1px solid rgba(99,102,241,0.4);
      background: rgba(99,102,241,0.12);
      color: #a5b4fc;
      font-size: 10px;
      cursor: pointer;
    }
    .stats-freq-ok:hover { background: rgba(99,102,241,0.25); }
    .stats-pending-pill {
      padding: 2px 8px;
      border-radius: 10px;
      background: rgba(251,146,60,0.15);
      border: 1px solid rgba(251,146,60,0.3);
      color: #fb923c;
      font-size: 9px;
      font-weight: 700;
      font-family: 'JetBrains Mono', monospace;
    }

    /* Summary cards */
    #stats-cards {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
      gap: 12px;
      margin-bottom: 24px;
    }
    .stat-card {
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(255,255,255,0.07);
      border-radius: 8px;
      padding: 14px 16px;
    }
    .stat-card-label {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #475569;
      margin-bottom: 6px;
    }
    .stat-card-value {
      font-size: 20px;
      font-weight: 700;
      font-family: 'JetBrains Mono', monospace;
      color: #e2e8f0;
      line-height: 1.2;
    }
    .stat-card-sub {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
      margin-top: 4px;
    }

    /* Scatter plot tooltip */
    .sc-tip {
      position: fixed;
      z-index: 9999;
      pointer-events: none;
      background: #0f172a;
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 6px;
      padding: 8px 10px;
      font-family: 'JetBrains Mono', monospace;
      font-size: 11px;
      color: #cbd5e1;
      min-width: 160px;
      box-shadow: 0 4px 16px rgba(0,0,0,0.55);
    }
    .sc-tip-name {
      font-weight: 600;
      color: #e2e8f0;
      margin-bottom: 5px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 220px;
    }
    .sc-tip-row {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      line-height: 1.6;
    }
    .sc-tip-label { color: #475569; }
    .sc-tip-val   { color: #94a3b8; }

    /* Sections */
    .stats-section {
      margin-bottom: 20px;
      background: rgba(255,255,255,0.02);
      border: 1px solid rgba(255,255,255,0.06);
      border-radius: 8px;
      overflow: hidden;
    }
    .stats-section-header {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 9px 16px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
      background: rgba(255,255,255,0.015);
    }
    .stats-section-title {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #64748b;
    }
    .stats-section-hint {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #334155;
    }

    /* Percentile label/value */
    .pbar-label {
      font-size: 9px;
      font-family: 'JetBrains Mono', monospace;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: #334155;
    }
    .pbar-value {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
    }

    /* Lower layout — operations table only (outliers moved to full-width below) */
    #stats-lower {
      display: block;
      margin-bottom: 20px;
    }

    /* Outliers panel */
    #stats-outliers {
      min-width: 0;
      margin-top: 0;
    }

    /* Outlier row interactions */
    .stats-outlier-row {
      cursor: pointer;
      transition: background 0.1s;
    }
    .stats-outlier-row:hover td { background: rgba(255,255,255,0.05) !important; }
    .stats-outlier-open td      { background: rgba(99,102,241,0.07) !important; }

    .stats-expand-cell { width: 24px; text-align: center !important; }
    .stats-expand-icon {
      display: inline-block;
      font-size: 8px;
      color: #334155;
      transition: transform 0.15s;
    }
    .stats-expand-icon.open { transform: rotate(90deg); color: #6366f1; }

    /* Slowest span inline cell */
    .stats-slowspan {
      display: flex;
      align-items: baseline;
      gap: 6px;
    }
    .stats-slowspan-name {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #94a3b8;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      max-width: 180px;
    }
    .stats-slowspan-dur {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #fb923c;
      flex-shrink: 0;
    }

    /* Service chips */
    .stats-services { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
    .stats-svc-chip {
      font-family: 'JetBrains Mono', monospace;
      font-size: 9px;
      padding: 1px 5px;
      border-radius: 3px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.07);
      white-space: nowrap;
    }
    .stats-svc-more {
      font-size: 9px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
    }

    /* Error / ok badges */
    .stats-err-badge {
      display: inline-block;
      padding: 1px 6px;
      border-radius: 3px;
      background: rgba(239,68,68,0.12);
      color: #f87171;
      font-size: 9px;
      font-weight: 600;
      font-family: 'JetBrains Mono', monospace;
      white-space: nowrap;
    }
    .stats-ok-badge {
      display: inline-block;
      padding: 1px 6px;
      border-radius: 3px;
      background: rgba(16,185,129,0.1);
      color: #34d399;
      font-size: 9px;
      font-weight: 600;
      font-family: 'JetBrains Mono', monospace;
    }

    /* Expanded span-detail sub-table */
    .stats-detail-row td { padding: 0 !important; border-bottom: none !important; }
    .stats-detail-wrap {
      background: rgba(0,0,0,0.25);
      border-top: 1px solid rgba(255,255,255,0.06);
      border-bottom: 2px solid rgba(99,102,241,0.25);
      padding: 0;
    }
    .stats-detail-table { width: 100%; }
    .stats-detail-table th {
      background: rgba(0,0,0,0.35) !important;
      padding: 5px 10px 5px 14px;
    }
    .stats-detail-table td { padding: 4px 10px 4px 14px; }
    .stats-detail-table tbody tr:hover td { background: rgba(255,255,255,0.02); }

    /* Inline duration % bar */
    .stats-pct-bar-wrap {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      width: 80px;
      vertical-align: middle;
    }
    .stats-pct-bar {
      display: inline-block;
      height: 5px;
      background: rgba(34,211,238,0.45);
      border-radius: 2px;
      min-width: 1px;
    }
    .stats-pct-label {
      font-size: 9px;
      color: #475569;
      min-width: 26px;
    }

    /* Tables */
    .stats-table-wrap {
      overflow-x: auto;
      overflow-y: auto;
      max-height: 360px;
    }
    .stats-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 11px;
    }
    .stats-table th {
      padding: 6px 10px;
      font-size: 9px;
      font-weight: 600;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: #475569;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      position: sticky;
      top: 0;
      background: rgba(10,10,20,0.97);
      text-align: left;
      white-space: nowrap;
    }
    .stats-table td {
      padding: 5px 10px;
      border-bottom: 1px solid rgba(255,255,255,0.03);
      color: #94a3b8;
      white-space: nowrap;
      max-width: 220px;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .stats-table tbody tr:hover td { background: rgba(255,255,255,0.03); }

    .stats-op-name {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #cbd5e1;
    }
    .stats-op-target {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
    }
    .stats-num {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      text-align: right !important;
    }

    /* ─────────────────────────────────────────────────────────────────────────
       uPlot base styles (vendored — avoids a separate CSS import)
       ──────────────────────────────────────────────────────────────────────── */
    .u-wrap            { display: inline-block; position: relative; }
    .u-over, .u-under  { position: absolute; }
    .u-under           { overflow: hidden; }
    .uplot canvas      { display: block; position: relative; width: 100%; height: 100%; }
    .u-axis            { position: absolute; }
    .u-select          { background: rgba(0,0,255,0.07); position: absolute; pointer-events: none; }
    .u-cursor-x,
    .u-cursor-y        { position: absolute; left: 0; top: 0; pointer-events: none;
                         will-change: transform; z-index: 100; }
    .u-hz .u-cursor-x,
    .u-vt .u-cursor-y  { height: 100%; border-right: 1px dashed rgba(255,255,255,0.3); }
    .u-hz .u-cursor-y,
    .u-vt .u-cursor-x  { width: 100%;  border-bottom: 1px dashed rgba(255,255,255,0.3); }
    .u-cursor-pt       { position: absolute; top: 0; left: 0; border-radius: 50%; border: 0 solid;
                         pointer-events: none; will-change: transform; z-index: 100;
                         transform: translate(-50%, -50%); }
    .u-legend          { display: none; }

    /* ─────────────────────────────────────────────────────────────────────────
       Metrics view
       ──────────────────────────────────────────────────────────────────────── */
    #metrics-view {
      display: none;
      position: absolute;
      top: 56px; left: 0; right: 0; bottom: 0;
      background: var(--c-bg);
      z-index: 5;
      overflow: hidden;
      flex-direction: row;
    }
    .mc-main {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    .mc-tabs {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 8px 12px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      flex-shrink: 0;
    }
    .mc-tab-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 5px;
      background: rgba(255,255,255,0.03);
      color: #64748b;
      font-size: 11px;
      cursor: pointer;
      transition: background 0.1s, color 0.1s, border-color 0.1s;
    }
    .mc-tab-btn:hover { background: rgba(255,255,255,0.08); color: #94a3b8; }
    .mc-tab-btn.mc-tab-active {
      background: rgba(34,211,238,0.1);
      border-color: rgba(34,211,238,0.35);
      color: #22d3ee;
    }
    .mc-tab-badge {
      font-family: 'JetBrains Mono', monospace;
      font-size: 10px;
      color: #22d3ee;
    }
    .mc-dashboard-layout {
      flex: 1;
      min-height: 0;
      display: flex;
      overflow: hidden;
    }
    .mc-raw {
      flex: 1;
      min-height: 0;
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    .mc-raw-toolbar {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      flex-shrink: 0;
    }
    .mc-raw-filter {
      flex: 1;
      max-width: 340px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 4px;
      color: #e2e8f0;
      font-size: 12px;
      padding: 4px 8px;
      outline: none;
    }
    .mc-raw-filter::placeholder { color: #475569; }
    .mc-raw-filter:focus { border-color: rgba(34,211,238,0.45); }
    .mc-raw-count {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
      margin-left: auto;
      white-space: nowrap;
    }
    .mc-action-btn.mc-raw-paused {
      color: #22d3ee;
      border-color: rgba(34,211,238,0.3);
      background: rgba(34,211,238,0.08);
    }
    .mc-raw-body {
      flex: 1;
      overflow: auto;
      min-height: 0;
      font-family: 'JetBrains Mono', monospace;
      font-size: 11px;
    }
    .mc-raw-empty {
      padding: 40px 24px;
      color: #334155;
      font-size: 12px;
      text-align: center;
      line-height: 1.7;
      font-family: 'Inter', system-ui, sans-serif;
    }
    .mc-raw-table {
      width: 100%;
      border-collapse: collapse;
      table-layout: fixed;
    }
    .mc-raw-table thead th {
      position: sticky;
      top: 0;
      z-index: 1;
      text-align: left;
      font-size: 10px;
      color: #64748b;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      background: rgba(10,10,20,0.95);
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding: 7px 8px;
      white-space: nowrap;
    }
    .mc-raw-table tbody td {
      border-bottom: 1px solid rgba(255,255,255,0.03);
      padding: 4px 8px;
      vertical-align: top;
      line-height: 1.45;
      color: #cbd5e1;
      word-break: break-word;
    }
    .mc-raw-table tbody tr:hover { background: rgba(255,255,255,0.03); }
    .mc-raw-service { width: 150px; color: #818cf8 !important; }
    .mc-raw-metric { width: 180px; color: #94a3b8 !important; }
    .mc-raw-kind { width: 86px; color: #22d3ee !important; text-transform: uppercase; font-size: 10px; }
    .mc-raw-value { color: #e2e8f0 !important; }
    .mc-raw-unit { width: 72px; color: #64748b !important; }
    .mc-raw-attrs { color: #64748b !important; }
    #app.metrics-active #metrics-view   { display: flex; }
    #app.metrics-active #legend,
    #app.metrics-active #tooltip,
    #app.metrics-active #node-detail,
    #app.metrics-active #empty-hint     { display: none; }

    /* ─────────────────────────────────────────────────────────────────────────
       Logs view
       ──────────────────────────────────────────────────────────────────────── */
    #logs-view {
      display: none;
      position: absolute;
      top: 56px; left: 0; right: 0; bottom: 0;
      background: var(--c-bg);
      z-index: 5;
      flex-direction: column;
      overflow: hidden;
    }
    #app.logs-active #logs-view         { display: flex; }
    #app.logs-active #legend,
    #app.logs-active #tooltip,
    #app.logs-active #node-detail,
    #app.logs-active #empty-hint        { display: none; }

    #logs-toolbar {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      flex-shrink: 0;
    }
    #logs-filter {
      flex: 1;
      max-width: 280px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 4px;
      color: #e2e8f0;
      font-size: 12px;
      padding: 4px 8px;
      outline: none;
    }
    #logs-filter::placeholder { color: #475569; }
    #logs-filter:focus { border-color: rgba(99,102,241,0.5); }

    #logs-sev-btns { display: flex; gap: 3px; }
    .logs-sev-btn {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 3px;
      color: #64748b;
      font-size: 10px;
      font-weight: 600;
      padding: 3px 7px;
      cursor: pointer;
      font-family: 'JetBrains Mono', monospace;
      letter-spacing: 0.04em;
      transition: background 0.1s, color 0.1s;
    }
    .logs-sev-btn:hover { background: rgba(255,255,255,0.08); color: #94a3b8; }
    .logs-sev-active.logs-sev-all   { color: #e2e8f0; background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }
    .logs-sev-active.logs-sev-debug { color: #94a3b8; background: rgba(148,163,184,0.15); border-color: rgba(148,163,184,0.3); }
    .logs-sev-active.logs-sev-info  { color: #22d3ee; background: rgba(34,211,238,0.12); border-color: rgba(34,211,238,0.3); }
    .logs-sev-active.logs-sev-warn  { color: #f59e0b; background: rgba(245,158,11,0.12); border-color: rgba(245,158,11,0.3); }
    .logs-sev-active.logs-sev-error { color: #f87171; background: rgba(248,113,113,0.12); border-color: rgba(248,113,113,0.3); }

    #logs-count {
      font-size: 10px;
      font-family: 'JetBrains Mono', monospace;
      color: #475569;
      margin-left: auto;
      flex-shrink: 0;
    }
    #logs-pause-btn, #logs-clear-btn {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 4px;
      color: #64748b;
      font-size: 11px;
      padding: 4px 10px;
      cursor: pointer;
      white-space: nowrap;
      transition: background 0.1s, color 0.1s;
    }
    #logs-pause-btn:hover, #logs-clear-btn:hover { background: rgba(255,255,255,0.09); color: #94a3b8; }
    #logs-pause-btn.logs-paused { color: #22d3ee; border-color: rgba(34,211,238,0.3); background: rgba(34,211,238,0.08); }

    #logs-body {
      flex: 1;
      overflow-y: auto;
      overflow-x: hidden;
      font-family: 'JetBrains Mono', monospace;
      font-size: 11px;
    }
    #logs-empty {
      padding: 40px 24px;
      color: #334155;
      font-size: 12px;
      text-align: center;
      line-height: 1.7;
      font-family: 'Inter', system-ui, sans-serif;
    }
    .log-row {
      display: flex;
      align-items: baseline;
      gap: 8px;
      padding: 3px 12px;
      border-bottom: 1px solid rgba(255,255,255,0.03);
      line-height: 1.5;
    }
    .log-row:hover { background: rgba(255,255,255,0.03); }
    .log-row-error { background: rgba(248,113,113,0.04); }
    .log-row-error:hover { background: rgba(248,113,113,0.07); }
    .log-row-warn  { background: rgba(245,158,11,0.03); }
    .log-row-warn:hover  { background: rgba(245,158,11,0.06); }
    .log-ts  { color: #334155; flex-shrink: 0; font-size: 10px; }
    .log-sev { font-size: 10px; font-weight: 700; width: 36px; flex-shrink: 0; text-align: center; border-radius: 2px; padding: 0 2px; }
    .log-sev-debug { color: #64748b; }
    .log-sev-info  { color: #22d3ee; }
    .log-sev-warn  { color: #f59e0b; }
    .log-sev-error { color: #f87171; }
    .log-svc  { color: #6366f1; flex-shrink: 0; font-size: 10px; max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .log-body { color: #cbd5e1; flex: 1; white-space: pre-wrap; word-break: break-word; }
    .log-trace-id { color: #475569; font-size: 9px; flex-shrink: 0; }

    /* Sidebar */
    .mc-sidebar {
      width: 264px;
      min-width: 200px;
      border-right: 1px solid rgba(255,255,255,0.06);
      overflow-y: auto;
      overflow-x: hidden;
      flex-shrink: 0;
      padding: 12px 0 24px;
    }
    .mc-sidebar-hdr {
      padding: 0 14px 10px;
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #475569;
    }
    .mc-sidebar-empty {
      padding: 12px 14px;
      font-size: 11px;
      color: #334155;
      line-height: 1.6;
    }
    .mc-metric-group { margin-bottom: 4px; }
    .mc-metric-name {
      padding: 5px 14px 3px;
      font-size: 11px;
      font-weight: 600;
      color: #94a3b8;
      font-family: 'JetBrains Mono', monospace;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .mc-series-row {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 3px 14px 3px 18px;
      transition: background 0.15s;
    }
    .mc-series-row:hover { background: rgba(255,255,255,0.03); }
    .mc-series-info {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      gap: 1px;
    }
    .mc-series-svc   { font-size: 10px; color: #64748b; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .mc-series-attrs { font-size: 9px;  color: #475569; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .mc-series-unit  { font-size: 9px;  color: #334155; font-family: 'JetBrains Mono', monospace; }
    /* Fixed-width action zone so all rows align */
    .mc-add-btn, .mc-series-used {
      flex-shrink: 0;
      width: 88px;
    }
    .mc-add-btn {
      padding: 3px 0;
      text-align: center;
      border-radius: 4px;
      border: 1px solid rgba(34,211,238,0.3);
      background: rgba(34,211,238,0.06);
      color: #22d3ee;
      font-size: 10px;
      cursor: pointer;
      white-space: nowrap;
      transition: background 0.15s, border-color 0.15s;
    }
    .mc-add-btn:hover { background: rgba(34,211,238,0.14); border-color: rgba(34,211,238,0.6); }

    .mc-series-used { display: flex; align-items: center; gap: 4px; justify-content: flex-end; }
    .mc-goto-btn { flex: 1; text-align: center; padding: 3px 0; border-color: rgba(99,179,113,0.4); background: rgba(99,179,113,0.07); color: #6ee7b7; }
    .mc-goto-btn:hover { background: rgba(99,179,113,0.16); border-color: rgba(99,179,113,0.7); }
    .mc-remove-from-sidebar {
      flex-shrink: 0; width: 18px; height: 18px; font-size: 9px;
      border-radius: 3px; border: 1px solid rgba(255,255,255,0.12);
      background: transparent; color: #64748b; cursor: pointer; line-height: 1;
    }
    .mc-remove-from-sidebar:hover { color: #f87171; border-color: rgba(248,113,113,0.5); }

    @keyframes mc-panel-flash {
      0%   { box-shadow: 0 0 0 2px rgba(34,211,238,0.7); }
      100% { box-shadow: 0 0 0 2px rgba(34,211,238,0); }
    }
    .mc-panel-highlight { animation: mc-panel-flash 1.2s ease-out forwards; }

    /* Dashboard */
    .mc-dashboard {
      flex: 1;
      min-width: 0;
      overflow-y: auto;
      padding: 0 20px 36px;
      display: flex;
      flex-direction: column;
    }
    .mc-dash-toolbar {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255,255,255,0.05);
      margin-bottom: 16px;
      flex-shrink: 0;
    }
    .mc-window-label {
      font-size: 11px;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .mc-window-select {
      background: #1e293b;
      border: 1px solid #334155;
      border-radius: 4px;
      color: #94a3b8;
      font-size: 12px;
      padding: 2px 6px;
      cursor: pointer;
      outline: none;
    }
    .mc-window-select:focus { border-color: #22d3ee; }
    .mc-dash-spacer { flex: 1; }
    .mc-fingerprint {
      font-size: 10px;
      color: #334155;
      font-family: 'JetBrains Mono', monospace;
      max-width: 240px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .mc-action-btn {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 4px;
      color: #64748b;
      font-size: 11px;
      padding: 3px 10px;
      cursor: pointer;
      transition: background 0.1s, color 0.1s;
    }
    .mc-action-btn:hover { background: rgba(255,255,255,0.09); color: #94a3b8; }
    .mc-import-banner {
      background: rgba(34,211,238,0.08);
      border: 1px solid rgba(34,211,238,0.2);
      border-radius: 4px;
      color: #22d3ee;
      font-size: 11px;
      padding: 6px 12px;
      margin-bottom: 10px;
      flex-shrink: 0;
    }
    .mc-dash-empty {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      height: 60%;
      gap: 10px;
    }
    .mc-dash-empty-title { font-size: 14px; color: #334155; }
    .mc-dash-empty-sub   { font-size: 11px; color: #1e293b; text-align: center; line-height: 1.7; }
    .mc-dash-empty-sub strong { color: #334155; }

    .mc-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
      gap: 16px;
    }
    .mc-panel {
      background: rgba(255,255,255,0.02);
      border: 1px solid rgba(255,255,255,0.07);
      border-radius: 8px;
      overflow: hidden;
      min-width: 0;
      display: flex;
      flex-direction: column;
    }
    .mc-panel-hdr {
      display: flex;
      align-items: center;
      padding: 9px 10px 8px 14px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
      gap: 8px;
    }
    .mc-panel-title {
      flex: 1;
      font-size: 11px;
      font-weight: 600;
      color: #94a3b8;
      font-family: 'JetBrains Mono', monospace;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .mc-legend {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      padding: 7px 12px 6px;
      border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    .mc-legend-item {
      display: flex;
      align-items: center;
      gap: 5px;
      font-size: 10px;
      color: #64748b;
    }
    .mc-legend-dot  { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
    .mc-legend-lbl  { white-space: nowrap; max-width: 200px; overflow: hidden; text-overflow: ellipsis; }
    .mc-legend-rm   { font-size: 9px !important; padding: 0 2px !important; opacity: 0; transition: opacity 0.15s; }
    .mc-legend-item:hover .mc-legend-rm { opacity: 1; }
    .mc-legend-rm:hover { color: #f87171 !important; background: rgba(248,113,113,0.1) !important; }

    .mc-chart-wrap { padding: 4px 0 0 0; overflow: hidden; min-width: 0; }
    .mc-chart-wrap .u-wrap { display: block !important; width: 100% !important; }

    .mc-icon-btn {
      border: none;
      background: none;
      color: #475569;
      cursor: pointer;
      font-size: 11px;
      padding: 2px 4px;
      border-radius: 3px;
      line-height: 1;
      transition: color 0.15s, background 0.15s;
    }
    .mc-icon-btn:hover { color: #94a3b8; background: rgba(255,255,255,0.06); }
    .mc-remove-panel-btn:hover { color: #f87171 !important; background: rgba(248,113,113,0.1) !important; }

    .mc-popover {
      position: fixed;
      z-index: 200;
      background: #1e293b;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 6px;
      box-shadow: 0 8px 24px rgba(0,0,0,0.6);
      min-width: 170px;
      overflow: hidden;
      padding: 4px 0;
    }
    .mc-popover-item {
      display: block;
      width: 100%;
      text-align: left;
      padding: 7px 14px;
      border: none;
      background: none;
      color: #94a3b8;
      font-size: 12px;
      cursor: pointer;
      transition: background 0.12s, color 0.12s;
    }
    .mc-popover-item:hover { background: rgba(255,255,255,0.07); color: #e2e8f0; }