:root {
  --mf-primary: #0284c7;
  --mf-primary-hover: #0369a1;
  --mf-bg-card: #ffffff;
  --mf-border: #e2e8f0;
  --mf-text-main: #0f172a;
  --mf-text-muted: #64748b;
  --mf-pill-bg: #f1f5f9;
  --mf-pill-hover: #e2e8f0;
  --mf-result-bg: #f8fafc;
}

.mf-tool-container {
  max-width: 900px;
  margin: 0 auto 3rem auto;
  font-family: inherit;
  color: var(--mf-text-main);
}

.mf-mode-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.mf-mode-btn {
  flex: 1;
  background: var(--mf-pill-bg);
  border: 1px solid var(--mf-border);
  color: var(--mf-text-muted);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}

.mf-mode-btn.mf-active {
  background: var(--mf-primary);
  color: #ffffff;
  border-color: var(--mf-primary);
}

.mf-editor-card {
  background: var(--mf-bg-card);
  border: 1px solid var(--mf-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.mf-presets-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--mf-border);
}

.mf-presets-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--mf-text-muted);
}

.mf-pill-btn {
  background: var(--mf-pill-bg);
  border: 1px solid var(--mf-border);
  color: var(--mf-text-main);
  border-radius: 9999px;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.mf-pill-btn:hover {
  background: var(--mf-pill-hover);
  border-color: var(--mf-primary);
}

.mf-field {
  margin-bottom: 1rem;
}

.mf-field-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.mf-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--mf-text-main);
}

.mf-hint {
  font-size: 0.75rem;
  color: var(--mf-text-muted);
}

.mf-req {
  color: #dc2626;
}

.mf-field textarea,
.mf-field select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--mf-border);
  border-radius: 8px;
  background: var(--mf-bg-card);
  color: var(--mf-text-main);
  font-size: 0.95rem;
  box-sizing: border-box;
  font-family: inherit;
}

.mf-field textarea {
  font-family: Consolas, Monaco, monospace;
  font-size: 0.88rem;
  line-height: 1.5;
}

.mf-field textarea:focus,
.mf-field select:focus {
  outline: none;
  border-color: var(--mf-primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.mf-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 768px) {
  .mf-grid-4 {
    grid-template-columns: 1fr 1fr;
  }
}

.mf-node-group {
  cursor: pointer;
}

.mf-node-group:hover rect {
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
}

.mf-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.mf-primary-btn {
  flex: 2;
  background: var(--mf-primary);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease;
  min-width: 160px;
}

.mf-primary-btn:hover {
  background: var(--mf-primary-hover);
}

.mf-secondary-btn {
  background: var(--mf-pill-bg);
  color: var(--mf-text-main);
  border: 1px solid var(--mf-border);
  border-radius: 8px;
  padding: 0.85rem 1.15rem;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}

.mf-results-card {
  background: var(--mf-result-bg);
  border: 1px solid var(--mf-border);
  border-radius: 12px;
  padding: 1.75rem;
}

.mf-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.mf-sub-title {
  font-size: 1rem;
  font-weight: 800;
  margin: 0;
  color: var(--mf-text-main);
}

.mf-node-count {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--mf-primary);
}

.mf-canvas-wrap {
  background: var(--mf-bg-card);
  border: 1px solid var(--mf-border);
  border-radius: 10px;
  padding: 1rem;
  overflow-x: auto;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 380px;
  margin-bottom: 1.5rem;
}

#diagramSvg {
  max-width: 100%;
  height: auto;
}

.mf-tip-box {
  background: var(--mf-bg-card);
  border: 1px solid var(--mf-border);
  border-radius: 8px;
  padding: 1.25rem;
}

.mf-tip-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin: 0 0 0.25rem 0;
  color: var(--mf-primary);
}

.mf-tip-box p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--mf-text-muted);
  line-height: 1.5;
}

.mf-ad {
  overflow: hidden;
  min-height: 280px;
  margin: 32px 0;
  text-align: center;
}

.mf-node-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding: 8px 12px;
  background: var(--mf-bg-card, #f8fafc);
  border: 1px solid var(--mf-border, #e2e8f0);
  border-radius: 6px;
  margin-bottom: 8px;
}

.mf-tb-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--mf-text-muted, #64748b);
  text-transform: uppercase;
  margin-right: 4px;
}

.mf-tb-btn {
  padding: 5px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--mf-surface, #ffffff);
  border: 1px solid var(--mf-border, #cbd5e1);
  border-radius: 4px;
  color: var(--mf-text-main, #0f172a);
  cursor: pointer;
  transition: all 0.15s ease;
}

.mf-tb-btn:hover {
  background: var(--mf-primary-hover, #e0f2fe);
  border-color: var(--mf-primary, #0284c7);
  color: var(--mf-primary, #0284c7);
}

.mf-tb-btn.mf-tb-primary {
  background: var(--mf-primary, #0284c7);
  border-color: var(--mf-primary, #0284c7);
  color: #ffffff;
}

.mf-tb-btn.mf-tb-primary:hover {
  background: #0369a1;
}

.mf-tb-btn.mf-tb-danger:hover {
  background: #fee2e2;
  border-color: #ef4444;
  color: #dc2626;
}

.mf-quick-add-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.mf-quick-input {
  flex: 1;
  padding: 7px 12px;
  font-size: 0.85rem;
  border: 1px solid var(--mf-border, #cbd5e1);
  border-radius: 4px;
  background: var(--mf-surface, #ffffff);
  color: var(--mf-text-main, #0f172a);
}

.mf-btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--mf-border, #cbd5e1);
  border-radius: 4px;
  background: var(--mf-surface, #ffffff);
  color: var(--mf-text-main, #0f172a);
  cursor: pointer;
  white-space: nowrap;
}

.mf-btn-sm:hover {
  background: var(--mf-bg-card, #f1f5f9);
}

.mf-btn-sm.mf-btn-primary {
  background: var(--mf-primary, #0284c7);
  border-color: var(--mf-primary, #0284c7);
  color: #ffffff;
}

.mf-btn-sm.mf-btn-primary:hover {
  background: #0369a1;
}

.mf-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 12px;
}

@media (max-width: 768px) {
  .mf-grid-4 {
    grid-template-columns: 1fr 1fr;
  }
  .mf-quick-add-row {
    flex-direction: column;
  }
}

/* Canvas Toolbar & Zoom Controls */
.mf-canvas-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.mf-zoom-group {
  display: inline-flex;
  align-items: center;
  background: var(--mf-bg-card);
  border: 1px solid var(--mf-border);
  border-radius: 8px;
  padding: 2px;
  gap: 2px;
}

.mf-zoom-btn {
  background: transparent;
  border: none;
  color: var(--mf-text-main);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  min-width: 32px;
}

.mf-zoom-btn:hover {
  background: var(--mf-pill-hover, #e2e8f0);
}

.mf-zoom-level {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 8px;
  color: var(--mf-text-muted);
  min-width: 48px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.mf-drag-hint {
  font-size: 0.78rem;
  color: var(--mf-text-muted);
  font-weight: 500;
}

.mf-canvas-wrap {
  cursor: grab;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.mf-canvas-wrap.mf-dragging {
  cursor: grabbing;
}
/* tf:dark-palette — generated by migrate_chrome.py */
/* Neutrals inherit the shared chrome tokens so all tools share one
   ground; brand hues are kept and lightened, never inverted. */
[data-theme="dark"] {
  --mf-primary: #81bcda;
  --mf-primary-hover: #69aed4;
  --mf-bg-card: var(--tf-surface);
  --mf-border: var(--tf-surface);
  --mf-text-main: var(--tf-ink);
  --mf-text-muted: var(--tf-ink-faint);
  --mf-pill-bg: var(--tf-surface);
  --mf-pill-hover: var(--tf-surface);
  --mf-result-bg: var(--tf-surface);
}