candle-graph 0.5.0

/* candle-graph visualizer — offline, publication-ready graph explorer */

:root {
  --bg: #f4f6f8;
  --fg: #0f172a;
  --muted: #64748b;
  --pane: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --focus: #2563eb;
  --hazard: #dc2626;
  --success: #047857;
  --warning: #b45309;
  --info: #0369a1;
  --canvas: #eef2f7;
  --canvas-grid: #d8dee9;
  --handle: #e2e8f0;
  --handle-hover: #2563eb;
  --shadow: 0 1px 2px rgb(15 23 42 / 6%), 0 4px 16px rgb(15 23 42 / 4%);
  --shadow-lg: 0 8px 32px rgb(15 23 42 / 10%);

  --op: #2563eb;
  --op-bg: #eff6ff;
  --param: #059669;
  --param-bg: #ecfdf5;
  --tensor: #64748b;
  --tensor-bg: #f1f5f9;
  --module: #7c3aed;
  --module-bg: #f5f3ff;
  --stage: #d97706;
  --stage-bg: #fffbeb;
  --edge: #94a3b8;
  --edge-in: #64748b;
  --edge-out: #2563eb;
  --edge-composition: #7c3aed;
  --edge-pipeline: #d97706;
  --edge-severed: #dc2626;
  --layer-band: rgb(37 99 235 / 4%);

  --Trainable: #059669;
  --Frozen: #64748b;
  --Differentiable: #2563eb;
  --Severed: #dc2626;
  --LayoutDependent: #d97706;
  --Unknown: #7c3aed;

  --Error: #dc2626;
  --Warning: #d97706;
  --Information: #64748b;

  --sidebar-w: 300px;
  --inspector-w: 320px;
  --header-h: 48px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  --radius: 8px;
  --radius-sm: 5px;
}
[data-theme="dark"] {
  --bg: #0b0f14;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --pane: #121820;
  --border: #243041;
  --border-strong: #334155;
  --accent: #60a5fa;
  --accent-soft: rgb(96 165 250 / 12%);
  --focus: #60a5fa;
  --hazard: #f87171;
  --success: #6ee7b7;
  --warning: #fbbf24;
  --info: #7dd3fc;
  --canvas: #0e1319;
  --canvas-grid: #1a2332;
  --handle: #1e293b;
  --handle-hover: #60a5fa;
  --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 4px 16px rgb(0 0 0 / 20%);
  --shadow-lg: 0 8px 32px rgb(0 0 0 / 35%);

  --op: #60a5fa;
  --op-bg: rgb(96 165 250 / 10%);
  --param: #34d399;
  --param-bg: rgb(52 211 153 / 10%);
  --tensor: #94a3b8;
  --tensor-bg: rgb(148 163 184 / 8%);
  --module: #a78bfa;
  --module-bg: rgb(167 139 250 / 10%);
  --stage: #fbbf24;
  --stage-bg: rgb(251 191 36 / 10%);
  --edge: #475569;
  --edge-in: #64748b;
  --edge-out: #60a5fa;
  --edge-composition: #a78bfa;
  --edge-pipeline: #fbbf24;
  --edge-severed: #f87171;
  --layer-band: rgb(96 165 250 / 6%);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font: 14px/1.5 var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--pane);
  padding: 0.5rem 1rem;
  z-index: 100;
  border-radius: var(--radius-sm);
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

/* ── Header ── */
.top {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: var(--header-h);
  padding: 0 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--pane);
  box-shadow: var(--shadow);
  position: relative;
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 650;
  font-size: 15px;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--module));
  flex-shrink: 0;
}
.cov {
  flex: 1;
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.top-actions {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}
.btn {
  border: 1px solid var(--border-strong);
  background: var(--pane);
  color: var(--fg);
  padding: 0.35rem 0.7rem;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:hover { opacity: 0.92; color: #fff; background: var(--accent); }
.btn.icon {
  padding: 0.35rem;
  line-height: 0;
  min-width: 32px;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn.icon svg { width: 16px; height: 16px; }

/* ── Layout ── */
.layout {
  display: flex;
  height: calc(100% - var(--header-h));
  min-height: 420px;
}
.pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--pane);
  overflow: hidden;
}
.pane-sidebar { width: var(--sidebar-w); flex-shrink: 0; border-right: 1px solid var(--border); }
.pane-canvas { flex: 1; min-width: 240px; position: relative; }
.pane-inspector { width: var(--inspector-w); flex-shrink: 0; border-left: 1px solid var(--border); }
[hidden] { display: none !important; }

.resize-handle {
  width: 6px;
  flex-shrink: 0;
  cursor: col-resize;
  background: var(--handle);
  transition: background 0.15s;
  position: relative;
  z-index: 2;
}
.resize-handle:hover,
.resize-handle.active { background: var(--handle-hover); }

.pane-h {
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.pane-h.sub {
  font-size: 10px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.trace-navigation {
  display: flex;
  flex: 1;
  min-height: 0;
  flex-direction: column;
}
.trace-navigation .pane-h.sub { margin-top: 0; }

/* ── Tabs ── */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.tab {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 0.35rem 0.65rem;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--fg); background: var(--pane); border-color: var(--border); }
.tab:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
.tab[aria-selected="true"] {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

/* ── Evidence and data views ── */
.view-panel {
  flex: 1;
  min-height: 0;
  padding: 1rem;
  background: var(--bg);
  outline: none;
}
.view-heading,
.evidence-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 auto 1rem;
  max-width: 1120px;
}
.view-heading h1,
.evidence-header h1 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
}
.view-heading > p,
.evidence-header p,
.view-summary {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 12px;
}
.eyebrow {
  margin: 0 0 0.2rem !important;
  color: var(--accent) !important;
  font-size: 10px !important;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.health-summary {
  display: grid;
  gap: 0.35rem;
  width: min(100%, 320px);
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--pane);
}
.health-copy { color: var(--muted); font-size: 12px; }
.status-badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 0.3rem;
  padding: 0.12rem 0.45rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--pane);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.status-valid,
.status-trusted,
.status-available,
.status-captured,
.status-complete { color: var(--success); border-color: color-mix(in srgb, var(--success) 38%, var(--border)); }
.status-warning,
.status-partial,
.status-untrusted { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 42%, var(--border)); }
.status-invalid { color: var(--hazard); border-color: color-mix(in srgb, var(--hazard) 42%, var(--border)); }
.evidence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.75rem;
  max-width: 1120px;
  margin: 0 auto;
}
.evidence-card,
.data-section {
  min-width: 0;
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--pane);
}
.evidence-card-wide { grid-column: 1 / -1; }
.evidence-card h2,
.data-section h2,
.gpu-empty h2 {
  margin: 0 0 0.65rem;
  font-size: 13px;
  line-height: 1.35;
}
.key-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.55rem 0.75rem;
  margin: 0;
}
.key-values > div { min-width: 0; }
.key-values dt {
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.key-values dd {
  margin: 0.15rem 0 0;
  overflow-wrap: anywhere;
  font: 11px/1.45 var(--font-mono);
}
.notice-list {
  display: grid;
  gap: 0.45rem;
  margin: 0.65rem 0 0;
  padding: 0;
  list-style: none;
}
.notice {
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--info);
  border-radius: var(--radius-sm);
  background: var(--bg);
}
.notice-warning,
.notice-partial,
.notice-untrusted { border-left-color: var(--warning); }
.notice-invalid,
.notice-error { border-left-color: var(--hazard); }
.notice-missing,
.notice-absent { border-left-color: var(--muted); }
.notice-title { display: flex; align-items: center; gap: 0.5rem; font-size: 12px; }
.notice p { margin: 0.35rem 0 0; color: var(--muted); font-size: 12px; }
.section-empty,
.table-note {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 12px;
}
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--pane);
}
.data-table,
.timeline-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 12px;
}
.data-table th,
.data-table td,
.timeline-table th,
.timeline-table td {
  padding: 0.5rem 0.65rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
.data-table th,
.timeline-table th {
  color: var(--muted);
  background: var(--bg);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.data-table td,
.timeline-table td { font-family: var(--font-mono); overflow-wrap: anywhere; }
.data-table tbody tr:last-child td,
.timeline-table tbody tr:last-child td { border-bottom: 0; }
.data-section {
  max-width: 1120px;
  margin: 0 auto 0.75rem;
}
.content-empty,
.gpu-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 220px;
  max-width: 760px;
  margin: 1rem auto;
  padding: 1.25rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--pane);
  color: var(--muted);
  text-align: left;
}
.content-empty { display: grid; gap: 0.25rem; text-align: center; }
.content-empty strong { color: var(--fg); font-size: 14px; }
.content-empty p,
.gpu-empty p { margin: 0.25rem 0 0; }
.gpu-empty-mark {
  display: grid;
  width: 64px;
  height: 64px;
  flex: 0 0 64px;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--muted);
  font: 700 11px/1 var(--font-mono);
  letter-spacing: 0.08em;
}
.gpu-empty h2 { margin-bottom: 0.25rem; color: var(--fg); }
.gpu-view > .source-list,
.gpu-sources { max-width: 1120px; margin: 0 auto 0.75rem; }
.source-list { padding: 0.75rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--pane); }
.view-summary { max-width: 1120px; margin: 0 auto 0.75rem; }
.table-row-action {
  border: 0;
  background: transparent;
  color: var(--accent);
  padding: 0.2rem;
  font: inherit;
  font-weight: 650;
  text-align: left;
  cursor: pointer;
}
.table-row-action:hover { text-decoration: underline; text-underline-offset: 0.2em; }
.table-row-action:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
.span-cost-table tbody tr.sel { background: var(--accent-soft); }

/* ── Sidebar ── */
.search-box {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.search-box input {
  width: 100%;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 13px;
}
.search-box input:focus { outline: 2px solid var(--focus); outline-offset: -1px; border-color: var(--focus); }
.search-box input::placeholder { color: var(--muted); }

.scroll-area {
  overflow: auto;
  flex: 1;
  min-height: 80px;
  padding: 0.35rem 0.5rem 0.75rem;
}

#module-tree { outline: none; }
#module-tree:focus { box-shadow: inset 0 0 0 2px var(--focus); }

.tree-item, .param-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.45rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: background 0.12s;
}
.tree-item:hover, .tree-item[aria-selected="true"],
.param-item:hover, .param-item[aria-selected="true"] {
  background: var(--accent-soft);
}
.tw {
  border: 0;
  background: transparent;
  color: var(--muted);
  width: 1.1rem;
  cursor: pointer;
  flex-shrink: 0;
  font-size: 11px;
  padding: 0;
  line-height: 1;
}
.tn {
  color: var(--muted);
  font-size: 11px;
  margin-left: auto;
  white-space: nowrap;
}
.param-item { color: var(--muted); }
.param-item .pk { color: var(--fg); font-family: var(--font-mono); font-size: 12px; }

.finding {
  padding: 0.55rem 0.5rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  font-size: 13px;
  transition: background 0.12s;
}
.finding:hover, .finding.sel { background: var(--accent-soft); }
.finding .sev {
  display: inline-block;
  font-weight: 600;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: var(--bg);
}
.finding.Error .sev { color: var(--Error); background: rgb(220 38 38 / 10%); }
.finding.Warning .sev { color: var(--Warning); background: rgb(217 119 6 / 10%); }
.finding.Information .sev { color: var(--Information); }
.finding .msg { margin-top: 0.3rem; line-height: 1.45; color: var(--fg); }
.finding .goto { font-size: 11px; color: var(--accent); margin-top: 0.25rem; font-weight: 500; }

.diag {
  max-height: 120px;
  overflow: auto;
  border-top: 1px solid var(--border);
  padding: 0.55rem 0.75rem;
  font-size: 12px;
  color: var(--hazard);
  flex-shrink: 0;
  background: rgb(220 38 38 / 4%);
}
.diag:empty { display: none; }

/* ── Canvas area ── */
.pane-h.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  text-transform: none;
  font-size: 14px;
  color: var(--fg);
  letter-spacing: 0;
  font-weight: 600;
}
.graph-stats { font-size: 12px; color: var(--muted); font-weight: 400; }

.graph-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.graph-toolbar[hidden] { display: none; }
.graph-toolbar select {
  flex: 1;
  min-width: 160px;
  max-width: 100%;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--pane);
  color: var(--fg);
  font: inherit;
  font-size: 13px;
}
.toolbar-check {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
.toolbar-check input { accent-color: var(--accent); }

.graph-banner {
  padding: 0.45rem 0.85rem;
  background: color-mix(in srgb, var(--LayoutDependent) 10%, var(--pane));
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.graph-banner[hidden] { display: none; }

.canvas-wrap {
  position: relative;
  flex: 1;
  min-height: 280px;
  background-color: var(--canvas);
  background-image: radial-gradient(circle, var(--canvas-grid) 1px, transparent 1px);
  background-size: 20px 20px;
  overflow: hidden;
}

#graph-canvas {
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: grab;
  display: block;
}
#graph-canvas:active { cursor: grabbing; }
#graph-canvas:focus { outline: none; }
#graph-canvas:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }

.empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  z-index: 1;
  pointer-events: none;
}
.empty[hidden] { display: none; }
.empty strong { color: var(--fg); font-size: 15px; display: block; margin-bottom: 0.35rem; }

/* Floating canvas controls */
.canvas-controls {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 5;
  background: var(--pane);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  box-shadow: var(--shadow-lg);
}
.canvas-controls .btn.icon { border-color: transparent; background: transparent; }
.canvas-controls .btn.icon:hover { background: var(--accent-soft); }
.zoom-label {
  text-align: center;
  font-size: 10px;
  color: var(--muted);
  padding: 2px 4px 4px;
  font-variant-numeric: tabular-nums;
  user-select: none;
}

.canvas-hint {
  position: absolute;
  left: 12px;
  top: 12px;
  margin: 0;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--pane) 88%, transparent);
  font-size: 11px;
  color: var(--muted);
  pointer-events: none;
  user-select: none;
  z-index: 4;
}
.canvas-hint kbd {
  display: inline-block;
  min-width: 1.1em;
  padding: 0 0.35em;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: var(--bg);
  font: 600 10px/1.6 var(--font-mono);
  color: var(--fg);
  text-align: center;
}

/* Floating legend */
.legend-float {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 5;
  background: var(--pane);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.45rem 0.65rem;
  box-shadow: var(--shadow-lg);
  max-width: min(420px, calc(100% - 80px));
}
.legend-toggle {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.legend-toggle:hover { color: var(--fg); }
.legend-body {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  margin-top: 0.4rem;
  font-size: 11px;
}
.legend-float.collapsed .legend-body { display: none; }

.lg::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 0.35rem;
  border-radius: 2px;
  background: var(--c, var(--muted));
  vertical-align: middle;
}
.lg.kind-op::before { border-radius: 3px; background: var(--op); }
.lg.kind-param::before { border-radius: 3px; width: 8px; height: 8px; background: var(--param); }
.lg.kind-tensor::before { border-radius: 3px; width: 8px; height: 8px; background: var(--tensor); }
.lg.kind-module::before { border-radius: 3px; background: var(--module); height: 8px; }
.lg.Trainable { --c: var(--Trainable); }
.lg.Frozen { --c: var(--Frozen); }
.lg.Differentiable { --c: var(--Differentiable); }
.lg.Severed { --c: var(--Severed); }
.lg.LayoutDependent { --c: var(--LayoutDependent); }
.lg.Unknown { --c: var(--Unknown); }

/* Hover tooltip */
.graph-tooltip {
  position: absolute;
  z-index: 20;
  pointer-events: none;
  background: var(--pane);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.65rem;
  font-size: 12px;
  line-height: 1.4;
  max-width: 320px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: opacity 0.12s;
}
.graph-tooltip.visible { opacity: 1; }
.graph-tooltip .tt-title { font-weight: 600; color: var(--fg); word-break: break-word; }
.graph-tooltip .tt-meta { color: var(--muted); font-size: 11px; margin-top: 0.15rem; font-family: var(--font-mono); }

/* ── Inspector ── */
#inspector {
  margin: 0;
  padding: 0.65rem 0.9rem;
  overflow: auto;
  flex: 1;
  font-size: 13px;
}
#inspector > div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.2rem 0.6rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}
#inspector dt { color: var(--muted); font-weight: 500; font-size: 12px; }
#inspector dd { margin: 0; word-break: break-word; font-family: var(--font-mono); font-size: 12px; }
#inspector .section-title {
  grid-column: 1 / -1;
  font-weight: 650;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding-top: 0.55rem;
  border-bottom: none;
}
#inspector.is-empty dd[data-field="label"] {
  color: var(--muted);
  font-family: var(--font-sans);
  font-style: italic;
}

/* ── SVG graph ── */
.layer-band { fill: var(--layer-band); stroke: none; pointer-events: none; }

.node { cursor: pointer; }
.node:focus-visible { outline: none; }
.node:focus-visible .node-card {
  stroke: var(--focus) !important;
  stroke-width: 3;
  filter: drop-shadow(0 0 2px color-mix(in srgb, var(--focus) 45%, transparent));
}
.node.dim { opacity: 0.12; }
.node.sel .node-card { stroke: var(--focus); stroke-width: 2.5; filter: drop-shadow(0 0 0 2px color-mix(in srgb, var(--focus) 25%, transparent)); }
.node.highlight .node-card { filter: drop-shadow(0 2px 8px color-mix(in srgb, var(--focus) 40%, transparent)); }

.node-card {
  fill: var(--pane);
  stroke-width: 1.5;
  transition: filter 0.12s;
}
.node.operation .node-card { fill: var(--op-bg); }
.node.parameter .node-card { fill: var(--param-bg); }
.node.tensor .node-card { fill: var(--tensor-bg); }
.node.component .node-card, .node.module .node-card { fill: var(--module-bg); }
.node.stage .node-card { fill: var(--stage-bg); }

.node-body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1.35;
  color: var(--fg);
  pointer-events: none;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-sizing: border-box;
}
.node.tensor .node-body,
.node.parameter .node-body {
  padding: 10px 14px 11px;
  text-align: center;
  align-items: center;
}
.node.operation .node-body,
.node.component .node-body,
.node.module .node-body,
.node.stage .node-body {
  text-align: left;
  align-items: stretch;
}
.node-body .nb-head {
  margin-bottom: 3px;
}
.node-body .nb-kind {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: 999px;
  background: color-mix(in srgb, currentColor 12%, transparent);
  line-height: 1.4;
}
.node-body .nb-title {
  font-weight: 600;
  font-size: 12px;
  line-height: 1.35;
  padding: 0;
  word-break: break-word;
  hyphens: auto;
  max-width: 100%;
}
.node-body .nb-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  padding: 4px 0 0;
  word-break: break-word;
  max-width: 100%;
}
.node.tensor .node-card,
.node.parameter .node-card {
  stroke-width: 1.75;
}
.node.operation .nb-kind { color: var(--op); }
.node.parameter .nb-kind { color: var(--param); }
.node.tensor .nb-kind { color: var(--tensor); }
.node.component .nb-kind, .node.module .nb-kind { color: var(--module); }
.node.stage .nb-kind { color: var(--stage); }

.edge-group { pointer-events: none; }
.edge-hit { pointer-events: stroke; cursor: pointer; }

.edge {
  fill: none;
  pointer-events: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: opacity 0.12s, stroke-width 0.12s;
}
.edge-default { stroke: var(--edge); }
.edge-in { stroke: var(--edge-in); }
.edge-out { stroke: var(--edge-out); }
.edge-composition { stroke: var(--edge-composition); }
.edge-pipeline { stroke: var(--edge-pipeline); }
.edge-severed { stroke: var(--edge-severed); }
.edge-call, .edge-timed { stroke: #0d9488; stroke-width: 2.5; }
.edge-label {
  font-size: 10px;
  font-weight: 600;
  fill: #0d9488;
  pointer-events: none;
}

.edge-group.dim .edge { opacity: 0.05; }
.edge-group.highlight .edge { opacity: 1 !important; stroke-width: 2.5 !important; }
.edge-group.sel .edge {
  stroke: var(--focus) !important;
  opacity: 1 !important;
  stroke-width: 2.5 !important;
}

/* ── Export / print ── */
[data-export="true"] .top,
[data-export="true"] .pane-sidebar,
[data-export="true"] .pane-inspector,
[data-export="true"] .resize-handle,
[data-export="true"] .legend-float,
[data-export="true"] .canvas-controls,
[data-export="true"] .canvas-hint,
[data-export="true"] .graph-toolbar,
[data-export="true"] .graph-banner { display: none !important; }
[data-export="true"] .layout { height: 100%; }
[data-export="true"] .pane-canvas { border: none; }
[data-export="true"] .canvas-wrap { background: #fff; background-image: none; }

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1100px) {
  .evidence-grid { grid-template-columns: minmax(0, 1fr); }
  .evidence-card-wide { grid-column: auto; }
}

@media (max-width: 900px) {
  .layout { flex-direction: column; height: auto; }
  .pane-sidebar, .pane-inspector { width: 100% !important; max-height: 38vh; }
  .resize-handle { display: none; }
  .pane-canvas { min-height: 420px; }
  .legend-float { max-width: calc(100% - 24px); }
  .view-panel { min-height: 420px; }
  .tabs { flex-wrap: nowrap; overflow-x: auto; }
  .tab { flex: 0 0 auto; min-height: 40px; }
  .trace-navigation { min-height: 220px; }
}

@media (max-width: 600px) {
  .top { height: auto; min-height: var(--header-h); flex-wrap: wrap; gap: 0.4rem; padding: 0.45rem 0.55rem; }
  .cov { order: 3; flex-basis: 100%; }
  .top-actions { margin-left: auto; }
  .tabs { flex-wrap: wrap; overflow-x: visible; }
  .view-panel { padding: 0.75rem; }
  .view-heading,
  .evidence-header { flex-direction: column; }
  .health-summary { width: 100%; }
  .evidence-card,
  .data-section { padding: 0.7rem; }
  .key-values { grid-template-columns: minmax(0, 1fr); }
  .gpu-empty { align-items: flex-start; flex-direction: column; }
  .pane-canvas { min-height: 480px; }
  .canvas-controls { right: 8px; bottom: 8px; }
  .legend-float { left: 8px; bottom: 8px; }
}

@media print {
  .top, .pane-sidebar, .pane-inspector, .resize-handle,
  .graph-toolbar, .graph-banner, .legend-float, .canvas-controls { display: none !important; }
  .layout { height: auto; }
  .canvas-wrap { min-height: 500px; background: #fff; background-image: none; }
}