:root {
  --bg: #ededed;
  --panel: #f9f9f9;
  --panel-2: #ffffff;
  --border: #ededed;
  --border-strong: #d9dcdc;
  --text: #444854;
  --muted: #6d7881;
  --muted-2: #97a0a8;
  --blue: #0d31f5;
  --blue-soft: #e6eaff;
  --blue-light: #dcf2ff;
  --yellow: #fbff06;
  --purple: #d8d2ed;
  --shadow: 0 1px 2px rgba(27, 30, 36, 0.06), 0 4px 16px rgba(27, 30, 36, 0.04);
  --radius: 6px;
  --header-h: 56px;
  --tree-w: 304px;
  --sidebar-w: 320px;
}

html.theme-light {
  --bg: #ededed;
  --panel: #f9f9f9;
  --panel-2: #ffffff;
  --border: #ededed;
  --border-strong: #d9dcdc;
  --text: #444854;
  --muted: #6d7881;
  --muted-2: #97a0a8;
  --blue: #0d31f5;
  --blue-soft: #e6eaff;
  --blue-light: #dcf2ff;
  --yellow: #fbff06;
  --purple: #d8d2ed;
  --shadow: 0 1px 2px rgba(27, 30, 36, 0.06), 0 4px 16px rgba(27, 30, 36, 0.04);
}

html.theme-dark {
  --bg: #121418;
  --panel: #1a1d24;
  --panel-2: #222630;
  --border: #262b35;
  --border-strong: #333a48;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --muted-2: #64748b;
  --blue: #3b82f6;
  --blue-soft: #1e293b;
  --blue-light: #1e3a5f;
  --yellow: #fbff06;
  --purple: #4c326b;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
}

html.theme-high-contrast {
  --bg: #000000;
  --panel: #0a0a0a;
  --panel-2: #141414;
  --border: #444444;
  --border-strong: #ffffff;
  --text: #ffffff;
  --muted: #e5e5e5;
  --muted-2: #d4d4d4;
  --blue: #38bdf8;
  --blue-soft: #082f49;
  --blue-light: #0284c7;
  --yellow: #ffff00;
  --purple: #d8b4fe;
  --shadow: 0 0 0 2px #ffffff;
}
html.theme-high-contrast .icon-btn:focus-visible,
html.theme-high-contrast button:focus-visible,
html.theme-high-contrast a:focus-visible,
html.theme-high-contrast input:focus-visible,
html.theme-high-contrast select:focus-visible {
  outline: 3px solid #ffff00 !important;
  outline-offset: 2px !important;
}

/* v3: High Contrast as a color-vision choice (cv-high-contrast) uses the
   same tokens as the high-contrast theme, so the settings option works
   whether it is chosen as a theme or as a color-vision remap. */
html.cv-high-contrast {
  --bg: #000000;
  --panel: #0a0a0a;
  --panel-2: #141414;
  --border: #444444;
  --border-strong: #ffffff;
  --text: #ffffff;
  --muted: #e5e5e5;
  --muted-2: #d4d4d4;
  --blue: #38bdf8;
  --blue-soft: #082f49;
  --blue-light: #0284c7;
  --yellow: #ffff00;
  --purple: #d8b4fe;
  --shadow: 0 0 0 2px #ffffff;
}
html.cv-high-contrast .icon-btn:focus-visible,
html.cv-high-contrast button:focus-visible,
html.cv-high-contrast a:focus-visible,
html.cv-high-contrast input:focus-visible,
html.cv-high-contrast select:focus-visible {
  outline: 3px solid #ffff00 !important;
  outline-offset: 2px !important;
}

/* Color-Vision Assistance Remappings (themes.md Section 2.4 & WCAG 2.2 AA) */
html.cv-protanopia [data-wid] path[stroke="#ef4444"],
html.cv-protanopia [data-wid] path[stroke="#f87171"],
html.cv-protanopia [data-wid] path[stroke="#dc2626"],
html.cv-protanopia [data-wid] path[stroke="#b91c1c"],
html.cv-protanopia [data-wid] line[stroke="#ef4444"],
html.cv-protanopia [data-wid] line[stroke="#dc2626"] {
  stroke: #0284c7 !important; /* Vivid Cyan/Blue (Separated from Red) */
}

html.cv-deuteranopia [data-wid] path[stroke="#22c55e"],
html.cv-deuteranopia [data-wid] path[stroke="#16a34a"],
html.cv-deuteranopia [data-wid] path[stroke="#10b981"],
html.cv-deuteranopia [data-wid] path[stroke="#059669"],
html.cv-deuteranopia [data-wid] line[stroke="#22c55e"],
html.cv-deuteranopia [data-wid] line[stroke="#16a34a"] {
  stroke: #9333ea !important; /* Vivid Violet (Separated from Green) */
}

html.cv-tritanopia [data-wid] path[stroke="#3b82f6"],
html.cv-tritanopia [data-wid] path[stroke="#2563eb"],
html.cv-tritanopia [data-wid] line[stroke="#3b82f6"] {
  stroke: #e11d48 !important; /* Rose Red (Separated from Blue) */
}

html.cv-achromatopsia [data-wid] {
  filter: grayscale(100%) contrast(140%) !important;
}
html.cv-achromatopsia [data-wid]:nth-of-type(3n) path {
  stroke-dasharray: 4, 3 !important;
}
html.cv-achromatopsia [data-wid]:nth-of-type(3n+1) path {
  stroke-dasharray: 8, 4 !important;
}

/* Diagram Canvas Background Settings (themes.md Section 2.5) */
html.diag-bg-dark .zoom-scroll { background-color: #121418 !important; }
html.diag-bg-white .zoom-scroll { background-color: #ffffff !important; }
html.diag-bg-contrast .zoom-scroll { background-color: #000000 !important; }
html.diag-bg-blueprint .zoom-scroll {
  background-color: #0a192f !important;
  background-image: linear-gradient(rgba(56, 189, 248, 0.08) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(56, 189, 248, 0.08) 1px, transparent 1px) !important;
  background-size: 20px 20px !important;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  margin: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 Roboto, "Noto Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; color: inherit; }

.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

svg { display: block; }

.icon-btn {
  width: 34px;
  height: 34px;
  padding: 8px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  transition: background-color 120ms ease, color 120ms ease;
}
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn:hover { background: var(--border); color: var(--text); }
.icon-btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 1px; }
.icon-btn:disabled { opacity: 0.35; cursor: default; background: transparent; }
.icon-btn.active { background: var(--blue-soft); color: var(--blue); }
.icon-btn.small { width: 30px; height: 30px; padding: 7px; }

.app-header {
  height: var(--header-h);
  flex: 0 0 var(--header-h);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border-strong);
  position: relative;
  z-index: 30;
}

.menu-btn { display: none; }

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #1b1e24;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.brand-text { min-width: 0; }
.brand-title { font-size: 14px; font-weight: 700; line-height: 1.2; white-space: nowrap; }
.brand-sub { font-size: 11.5px; color: var(--muted); line-height: 1.35; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.vehicle-picker-wrap {
  display: flex;
  align-items: center;
  margin-left: 6px;
}
.vehicle-select {
  height: 32px;
  max-width: 260px;
  padding: 0 28px 0 10px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background-color: var(--panel-2);
  color: var(--text);
  font-size: 12.5px;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236D7881' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 14px;
}
.vehicle-select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 2px var(--blue-soft);
}

.header-search {
  margin-left: auto;
  position: relative;
  width: min(360px, 38vw);
}
.header-search .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  width: 16px;
  height: 16px;
  transform: translateY(-50%);
  color: var(--muted-2);
  pointer-events: none;
}
.header-search input {
  width: 100%;
  height: 34px;
  padding: 0 12px 0 34px;
  border: 1px solid var(--border-strong);
  border-radius: 17px;
  background: var(--panel-2);
  color: var(--text);
  outline: none;
}
.header-search input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }

.app-shell { flex: 1; display: flex; min-height: 0; }

.tree-panel {
  width: var(--tree-w);
  flex: 0 0 var(--tree-w);
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--panel);
  border-right: 1px solid var(--border-strong);
  position: relative;
  z-index: 20;
}
.tree-panel-header {
  height: 42px;
  flex: 0 0 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.tree-panel-header .count {
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
  font-weight: 600;
  color: var(--muted-2);
  background: var(--border);
  border-radius: 10px;
  padding: 2px 8px;
}
.tree-scroll { flex: 1; overflow: auto; padding: 6px 8px 12px; }
.tree-footer {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted-2);
  background: var(--panel);
}

.tree-category { margin-bottom: 2px; }
.tree-category-btn {
  width: 100%;
  border: 0;
  background: transparent;
  border-radius: 5px;
  padding: 7px 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font-weight: 600;
  font-size: 12.5px;
}
.tree-category-btn:hover { background: var(--border); }
.tree-category-btn .chev { width: 14px; height: 14px; color: var(--muted-2); flex: 0 0 auto; transition: transform 120ms ease; }
.tree-category.collapsed .tree-category-btn .chev { transform: rotate(-90deg); }
.tree-category.collapsed .tree-circuits { display: none; }
.tree-category-btn .badge {
  margin-left: auto;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--muted-2);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 0 6px;
  line-height: 16px;
}
.tree-circuits { padding: 1px 0 4px 0; }
.tree-circuit {
  width: 100%;
  border: 0;
  background: transparent;
  border-left: 3px solid transparent;
  border-radius: 0 5px 5px 0;
  padding: 6px 8px 6px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
  cursor: pointer;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.3;
}
.tree-circuit:hover { background: var(--border); color: var(--text); }
.tree-circuit.active {
  background: var(--blue-soft);
  border-left-color: var(--blue);
  color: var(--blue);
  font-weight: 600;
}
.tree-circuit-name { flex: 1; min-width: 0; }
.tree-doc-count { font-size: 10.5px; color: var(--muted-2); flex: 0 0 auto; }
.tree-circuit.active .tree-doc-count { color: var(--blue); }
.tree-empty { padding: 24px 12px; text-align: center; color: var(--muted-2); font-size: 12.5px; }

.viewer-panel {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  color: var(--muted);
}
.empty-icon { width: 64px; height: 64px; color: var(--muted-2); margin-bottom: 18px; }
.empty-state h1 { margin: 0 0 8px; font-size: 20px; color: var(--text); }
.empty-state p { margin: 0; max-width: 460px; font-size: 13.5px; }
.empty-state .hint { margin-top: 14px; font-size: 12px; color: var(--muted-2); }

.viewer { flex: 1; display: flex; flex-direction: column; min-height: 0; }

.viewer-header {
  height: 58px;
  flex: 0 0 58px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 10px 0 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border-strong);
}
.viewer-heading { flex: 1; min-width: 0; }
.viewer-kicker {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted-2);
  line-height: 1.2;
  margin-bottom: 2px;
}
.viewer-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.toolbar { display: flex; align-items: center; gap: 1px; flex: 0 0 auto; }
.zoom-group { display: flex; align-items: center; gap: 5px; padding: 0 5px; }
.zoom-slider {
  width: 118px;
  height: 16px;
  accent-color: var(--blue);
  cursor: pointer;
}
#bookmark.bookmarked { color: var(--blue); }
#bookmark.bookmarked svg path { fill: currentColor; }
#bookmark.partial { color: var(--blue); }

.viewer-body { flex: 1; display: flex; min-height: 0; }

.diagrams-container {
  flex: 1;
  min-width: 0;
  position: relative;
  overflow: auto;
  background: var(--bg);
  cursor: grab;
}
.diagrams-container.dragging { cursor: grabbing; }
.diagrams-container.dragging * { cursor: grabbing !important; }

.zoom-scroll {
  min-width: 100%;
  min-height: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}
.zoom-layer {
  display: inline-flex;
  align-items: flex-start;
  width: 100%;
  margin: 0 auto;
  transform-origin: 0 0;
  flex: 0 0 auto;
}
.zoom-layer.loading { opacity: 0.55; }

.diagram-block {
  flex: 1 1 0;
  min-width: 0;
  padding: 15px 5px;
}
.diagram-block:first-child { padding-left: 25px; }
.diagram-block:last-child { padding-right: 25px; }
.diagram-block[hidden] { display: none; }
.diagram-number {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
  margin: 0;
}
.print-caption { display: none; }

.svg-container { position: relative; margin-top: 15px; }
.svg-spacer { display: block; width: 100%; visibility: hidden; }
.svg-host { position: absolute; inset: 0; }
.svg-host svg.diagram-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

/* The diagram colors and highlight behavior mirror the Direct-Hit viewer. */
.diagram-svg #diagrambackground { fill: #ffffff !important; }
.diagram-svg path, .diagram-svg line { cursor: pointer; }
.diagram-svg path[isolate]:not([highlighted]),
.diagram-svg line[isolate]:not([highlighted]) { 
  stroke: #ededed !important; 
  opacity: 0.22 !important;
}
.diagram-svg [data-wid-clon] { 
  stroke: transparent !important; 
  stroke-width: 10px !important;
  stroke-linecap: round !important;
  stroke-linejoin: round !important;
  fill: none !important;
  pointer-events: stroke !important;
  cursor: pointer !important;
}
.diagram-svg [data-wid-clon][hover] { 
  stroke: #0d31f5 !important; 
  stroke-opacity: 0.85 !important;
}
.diagram-svg [data-wid-clon][highlighted] { 
  stroke: #fbff06 !important; 
  stroke-opacity: 0.95 !important;
  filter: drop-shadow(0 0 3px rgba(251, 255, 6, 0.9)) !important;
}
.diagram-svg [data-wid-clon][highlighted][hover] { 
  stroke: #0d31f5 !important; 
  stroke-opacity: 0.95 !important;
  filter: drop-shadow(0 0 4px rgba(13, 49, 245, 0.9)) !important;
}
.diagram-svg path[data-componentid] {
  fill: #dcf2ff !important;
  cursor: pointer;
}
.diagram-svg path[data-componentid]:hover {
  stroke: #fbff06;
  stroke-width: 10;
}
.diagram-svg path[data-componentid][highlighted] {
  stroke: #fbff06;
  stroke-width: 10;
  fill: #d8d2ed !important;
  filter: drop-shadow(0 0 3px rgba(251, 255, 6, 0.8));
}

.loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(237, 237, 237, 0.72);
  color: var(--muted);
  font-size: 12.5px;
  z-index: 5;
  backdrop-filter: blur(1px);
}
.loading-overlay[hidden] { display: none; }
.spinner {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid var(--border-strong);
  border-top-color: var(--blue);
  animation: spin 800ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.diagram-sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--panel);
  border-left: 1px solid var(--border-strong);
}
.diagram-sidebar[hidden] { display: none; }
.sidebar-header {
  height: 58px;
  flex: 0 0 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 10px 0 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-scroll { flex: 1; overflow: auto; }

.check-row {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 16px;
  cursor: pointer;
  user-select: none;
}
.check-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--blue);
  cursor: pointer;
}
.check-row.select-all {
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.check-row.select-all span { flex: 1; }

.bookmark-btn {
  border: 0;
  background: transparent;
  padding: 4px;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  color: var(--muted-2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.bookmark-btn svg { width: 16px; height: 16px; }
.bookmark-btn:hover { background: var(--border); color: var(--text); }
.bookmark-btn.bookmarked { color: var(--blue); }
.bookmark-btn.bookmarked svg path { fill: currentColor; }

.diagram-row { border-bottom: 1px solid var(--border); }
.diagram-row-main {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px 10px 16px;
}
.diagram-row-main input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--blue);
  cursor: pointer;
  flex: 0 0 auto;
}
.diagram-row-label {
  flex: 1;
  min-width: 0;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.diagram-row-toggle {
  border: 0;
  background: transparent;
  padding: 3px;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  color: var(--muted-2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.diagram-row-toggle svg { width: 14px; height: 14px; transition: transform 120ms ease; }
.diagram-row-toggle:hover { background: var(--border); color: var(--text); }
.diagram-row.open .diagram-row-toggle svg { transform: rotate(90deg); }
.diagram-desc {
  display: none;
  padding: 0 18px 12px 40px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
  text-transform: lowercase;
}
.diagram-desc::first-letter { text-transform: uppercase; }
.diagram-row.open .diagram-desc { display: block; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: #1b1e24;
  color: #fff;
  border-radius: 6px;
  padding: 9px 16px;
  font-size: 12.5px;
  box-shadow: var(--shadow);
  z-index: 100;
  max-width: min(520px, 90vw);
  text-align: center;
}
.toast[hidden] { display: none; }

/* Scrollbars */
.tree-scroll, .sidebar-scroll, .diagrams-container { scrollbar-width: thin; scrollbar-color: #c3c8c8 transparent; }
.tree-scroll::-webkit-scrollbar, .sidebar-scroll::-webkit-scrollbar, .diagrams-container::-webkit-scrollbar { width: 10px; height: 10px; }
.tree-scroll::-webkit-scrollbar-thumb, .sidebar-scroll::-webkit-scrollbar-thumb, .diagrams-container::-webkit-scrollbar-thumb {
  background: #c3c8c8;
  border-radius: 6px;
  border: 2px solid transparent;
  background-clip: content-box;
}

@media (max-width: 900px) {
  .menu-btn { display: inline-flex; }
  .tree-panel {
    position: absolute;
    top: var(--header-h);
    bottom: 0;
    left: 0;
    width: min(320px, 86vw);
    transform: translateX(-102%);
    transition: transform 180ms ease;
    box-shadow: var(--shadow);
  }
  .tree-panel.open { transform: translateX(0); }
  .brand-sub { display: none; }
  .header-search { width: min(260px, 42vw); }
  .viewer-kicker { display: none; }
  .zoom-slider { width: 80px; }
  .diagram-sidebar { width: 280px; flex-basis: 280px; }
}

@media (max-width: 640px) {
  .brand-title { font-size: 12.5px; }
  .header-search { width: 44vw; }
  .viewer-header { padding-left: 10px; }
  .viewer-title { font-size: 13.5px; }
  .zoom-group { padding: 0; }
  .zoom-slider { width: 62px; }
  .diagram-sidebar { position: absolute; right: 0; top: 0; bottom: 0; width: min(300px, 88vw); z-index: 15; box-shadow: var(--shadow); }
  .viewer-body { position: relative; }
}

@media print {
  @page { margin: 12mm; }
  html, body { height: auto; overflow: visible; background: #fff; }
  .app-header, .tree-panel, .viewer-header, .diagram-sidebar, .loading-overlay, .toast, .empty-state { display: none !important; }
  .app-shell, .viewer-panel, .viewer, .viewer-body, .diagrams-container, .zoom-scroll, .zoom-layer {
    display: block !important;
    position: static !important;
    width: 100% !important;
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
    background: #fff !important;
    transform: none !important;
  }
  .diagram-block {
    display: block !important;
    width: 100% !important;
    padding: 0 0 10mm !important;
    break-after: page;
    page-break-after: always;
  }
  .diagram-block[hidden] { display: none !important; }
  .diagram-block[data-print-last] { break-after: auto !important; page-break-after: auto !important; }
  .diagram-number { display: none !important; }
  .print-caption { display: block !important; font-size: 11px; color: #444854; margin: 0 0 6px; }
  .svg-container { margin: 0 !important; }
  .svg-spacer { display: none !important; }
  .svg-host { position: static !important; }
  .svg-host svg.diagram-svg { position: static !important; width: 100% !important; height: auto !important; }
  .diagram-svg #diagrambackground { fill: #fff !important; }
  .diagram-svg path[data-componentid] { fill: #dcf2ff !important; }
}

/* ==========================================================================
   START PAGE GALLERY
   ========================================================================== */
.start-page {
  position: fixed;
  inset: 0;
  background: var(--panel);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
  overflow-y: auto;
}
.start-page-header {
  text-align: center;
  margin-bottom: 2rem;
}
.start-page-brand {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #1b1e24;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.start-page-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 .5rem;
}
.start-page-header p {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0;
}
.vehicle-grid {
  display: grid;
  gap: 1.25rem;
  width: 100%;
  max-width: 1080px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.vehicle-card {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 1.5rem;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
}
.vehicle-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--blue);
}
.vehicle-card .vehicle-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: .3rem;
}
.vehicle-card .vehicle-desc {
  font-size: .88rem;
  color: var(--muted);
  line-height: 1.45;
  margin-bottom: 1rem;
}
.vehicle-card .vehicle-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: .8rem;
  color: var(--muted-2);
}
.vehicle-card .vehicle-badge {
  background: var(--blue-soft);
  color: var(--blue);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
}

/* ==========================================================================
   BRAND & HEADER BUTTONS
   ========================================================================== */
.brand-mark-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}
.brand-mark-btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.brand-sub-btn {
  background: none;
  border: none;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  text-align: left;
  color: inherit;
}
.brand-sub-btn:hover .brand-sub {
  color: var(--text);
  text-decoration: underline;
}
.info-inline-icon {
  width: 13px;
  height: 13px;
  color: var(--muted);
  flex-shrink: 0;
}
.app-top-nav {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-left: 12px;
}
.top-nav-tab {
  height: 32px;
  padding: 0 12px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: all 120ms ease;
  user-select: none;
}
.top-nav-tab:hover {
  background: var(--border);
  color: var(--text);
}
.top-nav-tab.active {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 600;
  border-color: rgba(59, 130, 246, 0.25);
}
.top-nav-tab:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}

.active-remap-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(234, 179, 8, 0.15);
  border: 1px solid rgba(234, 179, 8, 0.35);
  font-size: 11.5px;
  color: #eab308;
  font-weight: 600;
  margin-left: 8px;
}
.remap-restore-btn {
  border: none;
  background: rgba(234, 179, 8, 0.25);
  color: #fef08a;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 10.5px;
  font-weight: 600;
  cursor: pointer;
}
.remap-restore-btn:hover {
  background: rgba(234, 179, 8, 0.45);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================================================
   HEADER SEARCH ENHANCEMENTS & POPUP
   ========================================================================== */
.search-clear-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  padding: 2px;
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}
.search-clear-btn:hover {
  background: var(--border-strong);
  color: var(--text);
}
.search-results-popup {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  max-height: 440px;
  overflow-y: auto;
  z-index: 100;
  padding: 6px 0;
}
.search-group-title {
  padding: 8px 14px 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-2);
}
.search-item {
  padding: 8px 14px;
  cursor: pointer;
  transition: background 100ms ease;
  border-left: 3px solid transparent;
}
.search-item:hover, .search-item.selected {
  background: var(--blue-soft);
  border-left-color: var(--blue);
}
.search-item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}
.search-item-kicker {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.25;
}
.search-item-sub {
  font-size: 11.5px;
  color: var(--muted-2);
  margin-top: 2px;
}
.search-item-badge {
  display: inline-block;
  padding: 1px 5px;
  font-size: 10.5px;
  border-radius: 3px;
  background: var(--border);
  color: var(--muted);
  margin-left: 6px;
}
.search-empty-msg {
  padding: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

/* ==========================================================================
   TREE PANEL FILTERS
   ========================================================================== */
.tree-title-group {
  display: flex;
  align-items: center;
  gap: 6px;
}
.filter-btn.active {
  background: var(--yellow) !important;
  color: #1b1e24 !important;
}

/* ==========================================================================
   TOOLBAR GROUPS
   ========================================================================== */
.viewport-group, .tools-group {
  display: flex;
  align-items: center;
  gap: 2px;
}
.export-dropdown-wrap {
  position: relative;
}
.export-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  min-width: 230px;
  z-index: 50;
  padding: 4px 0;
}
.export-menu-item {
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: none;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text);
  text-align: left;
}
.export-menu-item svg {
  width: 16px;
  height: 16px;
  color: var(--muted);
  flex-shrink: 0;
}
.export-menu-item:hover {
  background: var(--blue-soft);
  color: var(--blue);
}
.export-menu-item:hover svg {
  color: var(--blue);
}

/* ==========================================================================
   DOCKABLE ACTIVE TRACE STATUS BAR
   ========================================================================== */
.active-trace-bar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
  z-index: 40;
  max-width: min(840px, 92%);
  backdrop-filter: blur(8px);
  transition: opacity 160ms ease, transform 160ms ease;
}
.trace-bar-summary {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}
.trace-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 8px var(--yellow);
  flex-shrink: 0;
}
.trace-chips-scroll {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  max-width: 440px;
  padding: 2px 0;
  scrollbar-width: thin;
}
.trace-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  font-size: 11.5px;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}
.trace-chip:hover {
  border-color: var(--blue);
}
.trace-chip-remove {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--muted);
  font-size: 13px;
  line-height: 1;
}
.trace-chip-remove:hover {
  color: var(--text);
}
.trace-bar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.trace-action-btn {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11.5px;
  font-weight: 600;
  border: 1px solid var(--border-strong);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}
.trace-action-btn:hover {
  background: var(--border);
}
.trace-action-btn.secondary {
  border: none;
  background: none;
  color: var(--muted);
}
.trace-action-btn.secondary:hover {
  color: var(--text);
}

/* ==========================================================================
   FLOATING INSPECTOR HUD TOOLTIP
   ========================================================================== */
.element-tooltip {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  background: rgba(23, 27, 34, 0.94);
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.4;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(6px);
  max-width: 320px;
  transition: opacity 100ms ease;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.tooltip-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 3px;
}
.tooltip-badge {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 1px 5px;
  border-radius: 3px;
  background: #3b82f6;
  color: #fff;
}
.tooltip-badge.wire {
  background: #10b981;
}
.tooltip-title {
  font-size: 12.5px;
  font-weight: 700;
  color: #fff;
}
.tooltip-body {
  font-size: 11.5px;
  color: #cbd5e1;
}
.tooltip-footer {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 10.5px;
  color: #94a3b8;
}

/* ==========================================================================
   MODALS (SHORTCUTS & VEHICLE INFO)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal-dialog {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  width: 100%;
  max-width: 580px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  max-height: 85vh;
  overflow: hidden;
}
.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}
.modal-body {
  padding: 18px;
  overflow-y: auto;
  font-size: 13.5px;
}
.modal-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border-strong);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.btn {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border-strong);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}
.btn.primary {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}
.btn.primary:hover {
  filter: brightness(1.1);
}
.shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 20px;
}
.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 4px 0;
  border-bottom: 1px dashed var(--border);
}
kbd {
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 11.5px;
  font-family: monospace;
  font-weight: 600;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}
.vehicle-spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.vehicle-spec-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
}
.vehicle-spec-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}
.vehicle-spec-val {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}

/* ==========================================================================
   SVG SEARCH TEXT HIGHLIGHTS & DARK THEME OVERRIDES
   ========================================================================== */
.cwd-search-highlight {
  fill: #fbff06;
  fill-opacity: 0.65;
  stroke: #eab308;
  stroke-width: 0.5px;
  rx: 2px;
  pointer-events: none;
}

html.theme-dark .diagram-svg #diagrambackground {
  fill: #181b20 !important;
}
html.theme-dark .diagram-svg [stroke="#000000"],
html.theme-dark .diagram-svg [stroke="black"] {
  stroke: #cbd5e1;
}
html.theme-dark .diagram-svg text {
  fill: #cbd5e1;
}
html.theme-dark .diagram-svg path[isolate]:not([highlighted]),
html.theme-dark .diagram-svg line[isolate]:not([highlighted]) {
  stroke: #262b35 !important;
  opacity: var(--isolate-opacity, 0.22) !important;
}
html.theme-dark .diagram-svg path[data-componentid] {
  fill: #1e293b !important;
}
html.theme-dark .diagram-svg path[data-componentid][hover] {
  stroke: #fbff06 !important;
}
html.theme-dark .diagram-svg path[data-componentid][highlighted] {
  fill: #3b2d54 !important;
  stroke: #fbff06 !important;
}
html.theme-dark .search-clear-btn {
  color: #94a3b8;
}

/* ==========================================================================
   START PAGE GALLERY ENHANCEMENTS (UX-001)
   ========================================================================== */
.start-page-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto 0.5rem auto;
  flex-wrap: wrap;
}
.start-sort-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}
.continue-card {
  max-width: 820px;
  margin: 0 auto 1.5rem auto;
  padding: 1rem 1.4rem;
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.12), rgba(16, 185, 129, 0.12));
  border: 1px solid rgba(2, 132, 199, 0.35);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease;
}
.continue-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--blue);
}
.continue-info { text-align: left; }
.continue-kicker { font-size: 0.75rem; text-transform: uppercase; font-weight: 700; color: #0284c7; letter-spacing: 0.04em; }
.continue-title { font-size: 1.05rem; font-weight: 700; color: var(--text); margin: 2px 0; }
.continue-sub { font-size: 0.82rem; color: var(--muted); }
.continue-btn {
  padding: 8px 16px;
  border-radius: 6px;
  background: var(--blue);
  color: #fff;
  font-weight: 600;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.recent-vehicles-wrap {
  max-width: 820px;
  margin: 0 auto 1rem auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.recent-title { font-size: 0.82rem; font-weight: 600; color: var(--muted); }
.recent-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.recent-chip {
  padding: 4px 10px;
  border-radius: 14px;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  font-size: 0.8rem;
  color: var(--text);
  cursor: pointer;
  transition: background 120ms ease;
}
.recent-chip:hover { background: var(--blue-soft); border-color: var(--blue); color: var(--blue); }

.vehicle-card-thumb {
  width: 100%;
  height: 120px;
  background: var(--panel);
  border-radius: 6px;
  margin-bottom: 0.8rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  position: relative;
}
.vehicle-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: transform 160ms ease, opacity 160ms ease;
}
.vehicle-card:hover .vehicle-card-thumb img {
  transform: scale(1.04);
  opacity: 1;
}

/* ==========================================================================
   TREE RESIZER & BREADCRUMBS (UX-003, UX-004)
   ========================================================================== */
.tree-resizer {
  width: 5px;
  cursor: col-resize;
  background: transparent;
  flex: 0 0 5px;
  position: relative;
  z-index: 20;
  transition: background-color 150ms ease;
}
.tree-resizer:hover, .tree-resizer.resizing {
  background: var(--blue);
}

.viewer-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 3px;
  flex-wrap: wrap;
}
.viewer-breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  cursor: pointer;
}
.viewer-breadcrumbs a:hover {
  color: var(--blue);
  text-decoration: underline;
}
.viewer-breadcrumbs .sep {
  opacity: 0.5;
}
.viewer-breadcrumbs .current {
  color: var(--text);
  font-weight: 600;
}

/* ==========================================================================
   SPLIT VIEW LAYOUT (UX-005)
   ========================================================================== */
.split-view-active {
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
  height: 100%;
}
.split-pane {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.split-pane-header {
  height: 36px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 600;
}

/* ==========================================================================
   SPLIT VIEW LAYOUT v3 (UX-005) — real two-pane view
   The v2 .split-view-active class was applied to the diagrams container,
   whose children are the zoom scroll, overlay and trace bar — so it never
   laid two diagrams out side by side. v3 applies .v3-split-active to the
   container and lays the main zoom scroll (Pane A) and the dynamically
   created Pane B side by side, each with its own scroll container.
   ========================================================================== */
.diagrams-container.v3-split-active {
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  overflow: hidden;
}
.v3-split-active .zoom-scroll { overflow: auto; min-width: 0; min-height: 0; }
.v3-split-active .loading-overlay,
.v3-split-active .active-trace-bar { grid-column: 1 / -1; }
.v3-split-pane {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.v3-split-pane-header {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 600;
  flex-wrap: wrap;
}
.v3-split-select { max-width: 180px; }
.v3-split-pane-note {
  padding: 6px 10px;
  font-size: 0.78rem;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  min-height: 1.2em;
}
.v3-split-pane-scroll { flex: 1; overflow: auto; min-height: 0; }
.v3-split-pane-layer { display: flex; align-items: flex-start; width: 100%; }
.v3-split-pane-layer .diagram-block { flex: 1 1 0; min-width: 0; }

/* v3: cross-diagram trace results modal */
.v3-cross-trace-modal {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0, 0, 0, 0.5);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 10vh; overflow: auto;
}
.v3-cross-trace-box {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 8px;
  max-width: 640px; width: 92%; padding: 16px;
}
.v3-cross-trace-header { display: flex; justify-content: space-between; align-items: center; }
.v3-cross-trace-box ul { padding-left: 18px; }
.v3-cross-trace-box li { margin: 6px 0; }
.v3-cross-trace-note { color: var(--muted); font-size: 0.82rem; }

/* ==========================================================================
   COMPONENT DETAIL PANEL (UX-007, UX-018)
   ========================================================================== */
.component-detail-panel {
  position: fixed;
  top: var(--header-h);
  right: 0;
  bottom: 0;
  width: 380px;
  background: var(--panel-2);
  border-left: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  z-index: 45;
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform 200ms ease;
}
.component-detail-panel[hidden] {
  display: none !important;
}
.component-detail-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.component-detail-title {
  margin: 4px 0 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.component-detail-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
}
.component-detail-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
}
.detail-section {
  margin-bottom: 1.2rem;
}
.detail-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}
.detail-val {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.45;
}
.pinout-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  margin-top: 6px;
}
.pinout-table th {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 5px 8px;
  text-align: left;
  font-weight: 600;
  color: var(--muted);
}
.pinout-table td {
  border: 1px solid var(--border);
  padding: 5px 8px;
  color: var(--text);
}

/* ==========================================================================
   SETTINGS MODAL & TABS (UX-041 - UX-049)
   ========================================================================== */
.settings-dialog {
  display: flex;
  flex-direction: column;
  max-height: 85vh;
}
.settings-layout {
  display: flex;
  flex: 1;
  min-height: 420px;
  border-top: 1px solid var(--border);
  overflow: hidden;
}
.settings-nav {
  width: 180px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 8px 0;
}
.settings-nav-btn {
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.86rem;
  text-align: left;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}
.settings-nav-btn:hover { background: var(--border); color: var(--text); }
.settings-nav-btn.active {
  background: var(--panel-2);
  color: var(--blue);
  border-left: 3px solid var(--blue);
}
.settings-content {
  flex: 1;
  padding: 20px 24px;
  overflow-y: auto;
}
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.setting-info { max-width: 65%; }
.setting-title { font-weight: 600; font-size: 0.92rem; color: var(--text); margin-bottom: 2px; }
.setting-desc { font-size: 0.8rem; color: var(--muted); }
.setting-control select, .setting-control input[type="text"], .setting-control input[type="number"] {
  height: 34px;
  padding: 0 10px;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
  background: var(--panel-2);
  color: var(--text);
}

/* ==========================================================================
   FUSES, RELAYS & GROUNDS LOCATOR (UX-013)
   ========================================================================== */
.filter-chip {
  padding: 4px 12px;
  border-radius: 14px;
  border: 1px solid var(--border-strong);
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}
.filter-chip.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.fuses-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.fuses-table th {
  background: var(--panel);
  position: sticky;
  top: 0;
  padding: 8px 12px;
  text-align: left;
  border-bottom: 2px solid var(--border-strong);
  font-weight: 700;
  color: var(--muted);
}
.fuses-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.fuses-table tr:hover td {
  background: var(--blue-soft);
}
.fuses-jump-btn {
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  font-size: 0.78rem;
  color: var(--blue);
  cursor: pointer;
  font-weight: 600;
}
.fuses-jump-btn:hover {
  background: var(--blue);
  color: #fff;
}



/* v3.4 — settings-driven appearance (all values come from dh-settings-v2). */
:root {
  --highlight: #ffea00;
  --hover-highlight: #0d31f5;
  --isolate-opacity: 0.15;
  --ui-font: 14px;
  --diagram-font: 12px;
}
.diagram-svg path[highlighted], .diagram-svg line[highlighted], .diagram-svg [data-wid][highlighted]:not([data-wid-clon]) {
  stroke: var(--highlight, #ffea00) !important;
  stroke-width: 3.5px !important;
  stroke-linecap: round !important;
  stroke-linejoin: round !important;
  filter: drop-shadow(0 0 5px rgba(255, 234, 0, 1)) !important;
  opacity: 1 !important;
}
.diagram-svg path[hover], .diagram-svg line[hover], .diagram-svg path[data-wid]:hover:not([data-wid-clon]), .diagram-svg line[data-wid]:hover:not([data-wid-clon]) {
  stroke: var(--hover-highlight, #0d31f5) !important;
  stroke-width: 3px !important;
}
.diagram-svg [isolate]:not([highlighted]) {
  opacity: var(--isolate-opacity, 0.15) !important;
}
html.reduced-motion *, html.reduced-motion *::before, html.reduced-motion *::after {
  transition: none !important;
  animation: none !important;
}
.settings-dialog, #diagram-sidebar, .start-page {
  font-size: var(--ui-font);
}
body.print-bw .diagram-svg {
  filter: grayscale(1);
}
body.print-no-hf .top-nav, body.print-no-hf .viewer-header {
  display: none !important;
}

html.theme-dark .diagram-svg path[data-wid][highlighted],
html.theme-dark .diagram-svg line[data-wid][highlighted],
html.theme-dark .diagram-svg [data-wid][highlighted]:not([data-wid-clon]) {
  stroke: var(--highlight, #ffff00) !important;
  stroke-width: 3.5px !important;
  filter: drop-shadow(0 0 6px rgba(255, 255, 0, 1)) !important;
  opacity: 1 !important;
}

html.theme-dark .diagram-svg [data-wid-clon][highlighted] {
  stroke: var(--highlight, #ffff00) !important;
  stroke-opacity: 0.95 !important;
  filter: drop-shadow(0 0 5px rgba(255, 255, 0, 0.9)) !important;
}