/* ===========================================
   GCOVR Custom Theme - Boost Brand
   =========================================== */

@charset "utf-8";

:root {
  /* ===========================================
     Brand Colors (from Boost website mockup)
     =========================================== */
  --brand-gold: #C9A227;
  --brand-gold-hover: #B8922A;
  --brand-gold-light: #F5EBBC;
  --brand-teal: #1F7788;
  --brand-teal-light: #A7F7E8;

  /* ===========================================
     Dark Theme (default)
     =========================================== */

  /* Backgrounds */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-hover: #30363d;
  --bg-active: rgba(88, 166, 255, 0.15);

  /* Text */
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;

  /* Borders */
  --border-color: #30363d;
  --border-muted: #21262d;

  /* Accent colors */
  --accent-brand: var(--brand-gold);
  --accent-link: var(--brand-teal-light);
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-yellow: #d29922;
  --accent-red: #f85149;
  --accent-purple: #a371f7;

  /* Coverage colors */
  --coverage-high: #3fb950;
  --coverage-high-bg: rgba(63, 185, 80, 0.15);
  --coverage-medium: #d29922;
  --coverage-medium-bg: rgba(210, 153, 34, 0.15);
  --coverage-low: #f85149;
  --coverage-low-bg: rgba(248, 81, 73, 0.15);
  --coverage-unknown: #6e7681;

  /* Buttons */
  --btn-primary-bg: var(--brand-gold);
  --btn-primary-text: #0d1117;
  --btn-primary-hover: var(--brand-gold-hover);
  --btn-secondary-bg: var(--bg-tertiary);
  --btn-secondary-text: var(--text-primary);
  --btn-secondary-hover: var(--bg-hover);

  /* Tags/Pills */
  --tag-bg: var(--bg-tertiary);
  --tag-text: var(--text-secondary);

  /* Code */
  --code-bg: var(--bg-secondary);
  --code-keyword: var(--brand-teal-light);
  --code-string: #a5d6ff;

  /* ===========================================
     Layout
     =========================================== */
  --sidebar-width: 320px;
  --sidebar-collapsed-width: 64px;
  --header-height: 56px;

  /* ===========================================
     Typography
     =========================================== */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', Consolas, 'Liberation Mono', Menlo, monospace;

  /* Font sizes - base scale (can be adjusted via JS) */
  --font-size-base: 16px;
  --font-size-xs: calc(var(--font-size-base) * 0.75);
  --font-size-sm: calc(var(--font-size-base) * 0.867);
  --font-size-md: var(--font-size-base);
  --font-size-lg: calc(var(--font-size-base) * 1.067);
  --font-size-xl: calc(var(--font-size-base) * 1.2);
  --font-size-code: calc(var(--font-size-base) * 0.9375);

  /* ===========================================
     Radius
     =========================================== */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-pill: 20px;

  /* ===========================================
     Transitions
     =========================================== */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* ===========================================
   Light Mode
   =========================================== */
:root[data-theme="light"] {
  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fa;
  --bg-tertiary: #eaeef2;
  --bg-hover: #e5e9ed;
  --bg-active: rgba(88, 166, 255, 0.15);

  /* Text */
  --text-primary: #1f2328;
  --text-secondary: #656d76;
  --text-muted: #8c959f;

  /* Borders */
  --border-color: #d0d7de;
  --border-muted: #eaeef2;

  /* Accent colors */
  --accent-brand: #9A7B1A;
  --accent-link: var(--brand-teal);
  --accent-blue: #0969da;
  --accent-green: #1a7f37;
  --accent-yellow: #9a6700;
  --accent-red: #cf222e;
  --accent-purple: #8250df;

  /* Coverage colors */
  --coverage-high: #1a7f37;
  --coverage-high-bg: rgba(26, 127, 55, 0.15);
  --coverage-medium: #9a6700;
  --coverage-medium-bg: rgba(154, 103, 0, 0.15);
  --coverage-low: #cf222e;
  --coverage-low-bg: rgba(207, 34, 46, 0.15);

  /* Buttons */
  --btn-primary-bg: var(--accent-brand);
  --btn-primary-text: #ffffff;
  --btn-primary-hover: #7A6115;
  --btn-secondary-bg: var(--bg-tertiary);
  --btn-secondary-text: var(--text-primary);
  --btn-secondary-hover: var(--bg-hover);

  /* Tags/Pills */
  --tag-bg: var(--bg-tertiary);
  --tag-text: var(--text-secondary);

  /* Code */
  --code-bg: var(--bg-secondary);
  --code-keyword: var(--brand-teal);
  --code-string: #0550ae;
}

/* Suppress transitions and hide content on initial load to prevent flash */
html.no-transitions,
html.no-transitions *,
html.no-transitions *::before,
html.no-transitions *::after {
  transition: none !important;
}

html.no-transitions body {
  opacity: 0;
}

/* Smooth theme transitions */
body, .sidebar, .main-content, .main-header, .main-footer,
.sidebar-header, .sidebar-nav,
.summary-card, .file-list-container, .source-container,
.tree-item-header, .coverage-badge, .tree-coverage,
.btn, .nav-link, input {
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

/* Coverage class colors */
.coverage-high { color: var(--coverage-high) !important; }
.coverage-medium { color: var(--coverage-medium) !important; }
.coverage-low, .coverage-none { color: var(--coverage-low) !important; }
.coverage-unknown { color: var(--coverage-unknown) !important; }

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
  opacity: 1;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #79c0ff;
  text-decoration: underline;
}

/* ===========================================
   App Layout
   =========================================== */

.app-container {
  display: flex;
  min-height: 100vh;
}

/* ===========================================
   Sidebar
   =========================================== */

.sidebar {
  position: fixed;
  left: 12px;
  top: 12px;
  bottom: 12px;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow: visible;
  transition: width var(--transition-normal);
}

/* Collapsed state */
.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
  overflow: visible;
}

/* Expand on hover when collapsed - only for content area, not header */
.sidebar.collapsed.hover-expand {
  width: var(--sidebar-width);
}

/* Sidebar Resize Handle */
.sidebar-resize-handle {
  position: absolute;
  top: 0;
  left: 100%;
  width: 29px;
  height: 100%;
  cursor: col-resize;
  z-index: 101;
}

.sidebar-resize-handle::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 5px;
  height: 100%;
  border-radius: 2.5px;
  background: var(--bg-tertiary);
  transform: translateX(-50%);
  transition: background var(--transition-fast);
}

.sidebar-resize-handle:hover::after {
  background: var(--border-color);
}

.sidebar.collapsed .sidebar-resize-handle {
  display: none;
}

body.sidebar-resizing {
  user-select: none;
  cursor: col-resize;
}

body.sidebar-resizing .sidebar,
body.sidebar-resizing .main-content {
  transition: none;
}

/* Sidebar Header */
.sidebar-header {
  display: flex;
  flex-direction: column;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  gap: 4px;
  flex-shrink: 0;
}

.sidebar-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  min-width: 0;
  flex: 0 1 auto;
}

.sidebar-logo:hover {
  text-decoration: none;
}

.sidebar-logo:hover .boost-logo {
  transform: scale(1.05);
}

.sidebar-logo .boost-wordmark {
  height: 28px;
  width: auto;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
  color: var(--text-primary);
}

/* Light mode: dark text for wordmark */
:root[data-theme="light"] .sidebar-logo .boost-wordmark {
  color: #050816;
}

.sidebar-title-group {
  display: flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-library {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-subtitle {
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sidebar.collapsed .sidebar-title-group {
  display: none;
}

.sidebar.collapsed.hover-expand .sidebar-title-group {
  display: flex;
}

/* Hide logo when collapsed, center toggle (show on hover) */
.sidebar.collapsed .sidebar-logo {
  display: none;
}

.sidebar.collapsed.hover-expand .sidebar-logo {
  display: flex;
}

.sidebar.collapsed:not(.hover-expand) .sidebar-header {
  padding: 10px;
  align-items: center;
}

.sidebar.collapsed:not(.hover-expand) .sidebar-header-row {
  justify-content: center;
  width: 100%;
}

.sidebar.collapsed .sidebar-logo {
  display: none;
}

.sidebar.collapsed.hover-expand .sidebar-header-row {
  justify-content: space-between;
}

.sidebar.collapsed.hover-expand .sidebar-logo {
  display: flex;
}


/* Sidebar Toggle Button */
.sidebar-toggle {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
}

.sidebar-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.sidebar-toggle svg {
  width: 14px;
  height: 14px;
}

.sidebar-toggle .icon-expand { display: none; }
.sidebar-toggle .icon-collapse { display: block; }

.sidebar.collapsed .sidebar-toggle .icon-expand { display: block; }
.sidebar.collapsed .sidebar-toggle .icon-collapse { display: none; }

/* Sidebar Search */
.sidebar-search {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  position: relative;
}

.sidebar-search input {
  width: 100%;
  padding: 8px 28px 8px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-clear {
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  display: none;
}

.search-clear:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.sidebar-search.has-query .search-clear {
  display: block;
}

.sidebar-search input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

.sidebar-search input::placeholder {
  color: var(--text-muted);
}

.search-highlight {
  background: var(--accent-yellow, #e3b341);
  color: var(--bg-primary);
  border-radius: 2px;
  padding: 0 1px;
}

.search-no-results {
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Hide elements when collapsed (show on hover) */
.sidebar.collapsed .sidebar-search,
.sidebar.collapsed .tree-controls,
.sidebar.collapsed .sidebar-nav {
  opacity: 0;
  pointer-events: none;
}

.sidebar.collapsed.hover-expand .sidebar-search,
.sidebar.collapsed.hover-expand .tree-controls,
.sidebar.collapsed.hover-expand .sidebar-nav {
  opacity: 1;
  pointer-events: auto;
}

/* Theme Toggle (in header) */
.theme-toggle {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

/* Theme icons - visibility managed by JS */
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: none; }

/* Theme Selector Dropdown */

/* Tree Controls */
.tree-controls {
  display: flex;
  gap: 8px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-color);
}

.tree-control-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tree-control-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.tree-control-btn svg {
  width: 12px;
  height: 12px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  padding: 8px 0;
  scrollbar-gutter: stable;
}


.coverage-summary-mini {
  display: flex;
  align-items: center;
  gap: 8px;
}

.coverage-badge {
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.coverage-badge.coverage-high {
  background: var(--coverage-high-bg);
}

.coverage-badge.coverage-medium {
  background: var(--coverage-medium-bg);
}

.coverage-badge.coverage-low {
  background: var(--coverage-low-bg);
}

.coverage-label {
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
}

/* Tree View */
.tree-loading {
  padding: 16px;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.tree-item {
  user-select: none;
}

.tree-item-header {
  display: flex;
  align-items: center;
  padding: 2px 12px 2px 8px;
  cursor: pointer;
  transition: background var(--transition-fast);
  gap: 4px;
  /* Extend background full width */
  margin-left: -200px;
  padding-left: 208px;
  margin-right: -12px;
  padding-right: 24px;
}

.tree-item-header:hover {
  background: var(--bg-hover);
}

.tree-item-header.active,
.tree-item.active > .tree-item-header {
  background: var(--bg-active);
}

.tree-item.active > .tree-item-header .tree-label {
  color: var(--accent-blue);
  font-weight: 500;
}

/* Folder toggle button (+/-) - minimal style */
.tree-folder-toggle {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  font-weight: 400;
  font-family: var(--font-mono);
  flex-shrink: 0;
  cursor: pointer;
  transition: color var(--transition-fast);
  text-decoration: none;
  line-height: 1;
  margin-right: 2px;
  padding: 0;
}

.tree-folder-toggle:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* Spacer for files (no toggle) */
.tree-spacer {
  width: 20px;
  flex-shrink: 0;
}

/* Legacy toggle classes */
.tree-toggle {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  font-weight: 600;
  font-family: var(--font-mono);
  flex-shrink: 0;
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
  line-height: 1;
  text-decoration: none;
}

.tree-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--accent-blue);
  text-decoration: none;
}

.tree-toggle .toggle-icon {
  display: block;
  color: var(--text-primary);
  font-size: var(--font-size-md);
  line-height: 1;
}

.tree-toggle-spacer {
  width: 18px;
  flex-shrink: 0;
}

.tree-item.no-children .tree-toggle {
  visibility: hidden;
}

.tree-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.tree-icon-folder {
  color: var(--accent-blue);
}

.tree-icon-file {
  color: var(--text-muted);
}

/* Legacy classes */
.tree-icon.folder {
  color: var(--accent-blue);
}

.tree-icon.file {
  color: var(--text-secondary);
}

.tree-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-md);
  color: var(--text-primary);
}

.tree-label a {
  color: var(--text-primary);
}

.tree-coverage {
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.tree-coverage.coverage-high {
  background: var(--coverage-high-bg);
}

.tree-coverage.coverage-medium {
  background: var(--coverage-medium-bg);
}

.tree-coverage.coverage-low {
  background: var(--coverage-low-bg);
}

.tree-children {
  display: none;
  margin-left: 20px;
  position: relative;
}

.tree-item.expanded > .tree-children {
  display: block;
}

/* .tree-children-inner reserved for animation support */


/* ===========================================
   Main Content
   =========================================== */

.main-content {
  flex: 1;
  margin-left: calc(var(--sidebar-width) + 41px);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
}

.sidebar.collapsed ~ .main-content {
  margin-left: calc(var(--sidebar-collapsed-width) + 41px);
}

.main-header {
  position: sticky;
  top: 12px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 12px 12px 0 0;
  padding: 12px 10px 12px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  height: var(--header-height);
}


.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  white-space: nowrap;
}

.breadcrumb a,
.breadcrumb span {
  display: inline;
  white-space: nowrap;
}

.breadcrumb a {
  color: var(--accent-blue);
}

.breadcrumb a:hover {
  color: var(--accent-blue);
}

.breadcrumb .separator {
  color: var(--text-muted);
  padding: 0 6px;
}

.breadcrumb .current {
  color: var(--text-primary);
  visibility: hidden;
}

.breadcrumb .current.ready {
  visibility: visible;
}

.breadcrumb-home {
  font-weight: 600;
  color: var(--accent-brand);
}

.breadcrumb-home:hover {
  color: var(--accent-brand);
  opacity: 0.8;
  text-decoration: none;
}

.breadcrumb-title {
  font-weight: 600;
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  margin-right: 8px;
}

.breadcrumb-label {
  font-weight: 400;
  font-size: var(--font-size-md);
  color: var(--text-secondary);
}

.header-actions {
  margin-left: auto;
}

.content-wrapper {
  flex: 1;
  padding: 24px;
  padding-right: 12px;
  padding-left: 0;
  width: 100%;
  margin-left: 0;
}

.main-footer {
  padding: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  border-top: 1px solid var(--border-color);
}

.main-footer a {
  color: var(--text-muted);
}

/* ===========================================
   Summary Cards
   =========================================== */

.summary-section {
  margin-bottom: 24px;
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.summary-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.summary-card-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-tertiary);
}

.summary-card-header h3 {
  margin: 0;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-card-body {
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.coverage-ring {
  position: relative;
  width: 72px;
  height: 72px;
  flex-shrink: 0;
}

.coverage-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.coverage-ring .ring-bg {
  fill: none;
  stroke: var(--bg-tertiary);
  stroke-width: 3;
}

.coverage-ring .ring-fill {
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
  stroke-linecap: round;
  transition: stroke-dasharray var(--transition-normal);
}

.coverage-ring.coverage-high .ring-fill { stroke: var(--coverage-high); }
.coverage-ring.coverage-medium .ring-fill { stroke: var(--coverage-medium); }
.coverage-ring.coverage-low .ring-fill { stroke: var(--coverage-low); }

.coverage-ring .ring-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-md);
  font-weight: 600;
}

.summary-stats {
  flex: 1;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: var(--font-size-sm);
}

.stat-row .stat-label {
  color: var(--text-secondary);
}

.stat-row .stat-value {
  font-weight: 500;
  color: var(--text-primary);
}

.coverage-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.legend-item {
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.legend-item.coverage-high {
  background: var(--coverage-high-bg);
  color: var(--coverage-high);
}

.legend-item.coverage-medium {
  background: var(--coverage-medium-bg);
  color: var(--coverage-medium);
}

.legend-item.coverage-low {
  background: var(--coverage-low-bg);
  color: var(--coverage-low);
}

/* ===========================================
   File List
   =========================================== */

.file-list-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.file-list-header {
  display: grid;
  grid-template-columns: minmax(200px, 2fr) minmax(150px, 1fr) 100px 100px 100px;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.file-list-header > div {
  display: flex;
  align-items: center;
  gap: 4px;
}

.file-list-header .sortable {
  cursor: pointer;
  user-select: none;
}

.file-list-header .sortable:hover {
  color: var(--text-primary);
}

.file-list-header .sorted-ascending::after {
  content: ' ↑';
}

.file-list-header .sorted-descending::after {
  content: ' ↓';
}

.file-row {
  display: grid;
  grid-template-columns: minmax(200px, 2fr) minmax(150px, 1fr) 100px 100px 100px;
  gap: 8px;
  padding: 4px 16px;
  border-bottom: 1px solid var(--border-muted);
  align-items: center;
  transition: background var(--transition-fast);
}

.file-row:last-child {
  border-bottom: none;
}

.file-row:hover {
  background: var(--bg-hover);
}

/* Adjust grid when columns are hidden */
.no-functions.no-branches .file-list-header,
.no-functions.no-branches .file-row {
  grid-template-columns: minmax(200px, 2fr) minmax(150px, 1fr) 100px;
}

.no-functions:not(.no-branches) .file-list-header,
.no-functions:not(.no-branches) .file-row {
  grid-template-columns: minmax(200px, 2fr) minmax(150px, 1fr) 100px 100px;
}

.no-branches:not(.no-functions) .file-list-header,
.no-branches:not(.no-functions) .file-row {
  grid-template-columns: minmax(200px, 2fr) minmax(150px, 1fr) 100px 100px;
}

.file-row:nth-child(even) {
  background: rgba(56, 139, 253, 0.03);
}

.file-row:nth-child(even):hover {
  background: var(--bg-hover);
}

.col-name {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.file-icon {
  flex-shrink: 0;
  color: var(--text-muted);
}

.file-icon svg {
  display: block;
}

.file-row.directory .file-icon {
  color: var(--accent-blue);
}

.col-name a {
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.col-name .no-link {
  color: var(--text-secondary);
}

.col-coverage {
  display: flex;
  align-items: center;
  gap: 12px;
}

.coverage-bar-container {
  flex: 1;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.coverage-bar {
  height: 100%;
  border-radius: 3px;
  transition: width var(--transition-normal);
}

.coverage-bar.coverage-high { background: var(--coverage-high); }
.coverage-bar.coverage-medium { background: var(--coverage-medium); }
.coverage-bar.coverage-low { background: var(--coverage-low); }

.coverage-percent {
  font-weight: 600;
  font-size: var(--font-size-sm);
  min-width: 48px;
  text-align: right;
}

.col-lines, .col-functions, .col-branches {
  text-align: right;
  font-size: var(--font-size-sm);
}

.file-list-header .col-lines,
.file-list-header .col-functions,
.file-list-header .col-branches {
  justify-content: flex-end;
}

.stat-value {
  font-weight: 500;
}

.stat-separator {
  color: var(--text-muted);
  margin: 0 2px;
}

.stat-total {
  color: var(--text-secondary);
}

/* ===========================================
   Source Code View
   =========================================== */

.source-summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
}

.source-info h2 {
  margin: 0 0 8px 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.source-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.source-stats .stat {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.source-stats .stat strong {
  margin-right: 4px;
}

.source-controls {
  display: flex;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn.btn-sm {
  padding: 4px 10px;
  font-size: var(--font-size-xs);
}

.btn-count {
  font-weight: 600;
}

.btn-toggle {
  text-decoration: line-through;
  opacity: 0.6;
}

.btn-toggle.show_coveredLine,
.btn-toggle.show_uncoveredLine,
.btn-toggle.show_partialCoveredLine,
.btn-toggle.show_excludedLine {
  text-decoration: none;
  opacity: 1;
}

.color-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.color-dot.covered { background: var(--coverage-high); }
.color-dot.uncovered { background: var(--coverage-low); }

.source-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.source-header {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 8px;
}

.source-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.source-line-filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.source-column-filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.col-toggle {
  text-decoration: line-through;
  opacity: 0.6;
}

.col-toggle.show-col {
  text-decoration: none;
  opacity: 1;
}

.source-nav-links {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.source-header .btn.btn-sm {
  padding: 2px 6px;
  gap: 4px;
}

.source-header .nav-link {
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  gap: 2px;
}

.source-table-container {
  overflow-x: auto;
}

.source-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: var(--font-size-code);
  line-height: 1.2;
}

.source-table thead {
  position: sticky;
  top: 0;
  z-index: 10;
}

.source-table th {
  padding: 8px 12px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.source-table th.col-lineno,
.source-table th.col-count,
.source-table th.col-branch {
  text-align: right;
}

.source-table td {
  padding: 4px 12px;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-muted);
}

.source-table .col-lineno {
  background: var(--bg-tertiary);
  border-right: 1px solid var(--border-color);
  text-align: right;
  user-select: none;
  white-space: nowrap;
  width: 1%;
  padding: 4px 6px;
}

.source-table .col-lineno a {
  color: var(--text-muted);
  text-decoration: none;
  display: block;
  padding: 0;
  scroll-margin-top: calc(var(--header-height) + 48px);
}

.source-table .col-lineno a:hover {
  color: var(--accent-blue);
}

.source-table .col-lineno a:focus {
  outline: none;
}

/* Highlight the entire row when its line anchor is the URL target */
.source-line:has(.col-lineno a:target) td {
  background: var(--bg-hover);
}

.source-line.coveredLine:has(.col-lineno a:target) td {
  background: var(--coverage-high-bg);
  box-shadow: inset 0 0 0 1px rgba(63, 185, 80, 0.25);
}

.source-line.uncoveredLine:has(.col-lineno a:target) td {
  background: var(--coverage-low-bg);
  box-shadow: inset 0 0 0 1px rgba(248, 81, 73, 0.25);
}

.source-line.partialCoveredLine:has(.col-lineno a:target) td {
  background: var(--coverage-medium-bg);
  box-shadow: inset 0 0 0 1px rgba(210, 153, 34, 0.25);
}

.source-table .col-branch,
.source-table .col-condition,
.source-table .col-decision,
.source-table .col-call {
  background: var(--bg-tertiary);
  border-right: 1px solid var(--border-color);
  text-align: center;
  width: 1%;
  padding: 2px 3px;
}

.source-table .col-count {
  text-align: right;
  white-space: nowrap;
  width: 1%;
  color: var(--text-muted);
  padding: 4px 6px;
}

.source-table .col-source {
  white-space: pre;
  padding-left: 16px;
}

/* Line coverage highlighting */
.source-line.coveredLine.show_coveredLine td.col-source,
.source-line.coveredLine.show_coveredLine td.col-count {
  background: var(--coverage-high-bg);
}

.source-line.uncoveredLine.show_uncoveredLine td.col-source,
.source-line.uncoveredLine.show_uncoveredLine td.col-count {
  background: var(--coverage-low-bg);
}

.source-line.partialCoveredLine.show_partialCoveredLine td.col-source,
.source-line.partialCoveredLine.show_partialCoveredLine td.col-count {
  background: var(--coverage-medium-bg);
}

.source-line.excludedLine.show_excludedLine td.col-source,
.source-line.excludedLine.show_excludedLine td.col-count {
  background: rgba(110, 118, 129, 0.15);
}

/* TLA Navigation Column */
.source-table .col-tla {
  width: 1%;
  text-align: center;
  white-space: nowrap;
  padding: 4px 4px;
  background: var(--bg-tertiary);
  border-right: 1px solid var(--border-color);
}

.source-table th.col-tla {
  text-align: center;
}

.tla-link {
  display: inline-block;
  font-weight: 700;
  font-size: var(--font-size-xs);
  line-height: 1;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
}

.tla-link:hover {
  text-decoration: none;
  filter: brightness(1.2);
}

.tla-hit {
  background: var(--coverage-high-bg);
  color: var(--coverage-high);
}

.tla-mis {
  background: var(--coverage-low-bg);
  color: var(--coverage-low);
}

.tla-par {
  background: var(--coverage-medium-bg);
  color: var(--coverage-medium);
}

/* Column visibility toggle hide rules */
.source-table.hide-col-branch .col-branch { display: none; }
.source-table.hide-col-tla .col-tla { display: none; }
.source-table.hide-col-count .col-count { display: none; }

.hit-miss {
  color: var(--coverage-low);
  font-weight: bold;
}

.hit-excluded {
  color: var(--text-muted);
}

/* Branch/condition popup */
.branch-details, .condition-details, .decision-details, .call-details {
  position: relative;
}

.branch-summary, .condition-summary, .decision-summary, .call-summary {
  cursor: pointer;
  padding: 1px 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  display: inline-flex;
  align-items: center;
  gap: 1px;
  white-space: nowrap;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.branch-summary:hover, .condition-summary:hover, .decision-summary:hover, .call-summary:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.branch-details[open] > .branch-summary,
.condition-details[open] > .condition-summary,
.decision-details[open] > .decision-summary,
.call-details[open] > .call-summary {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
}

.branch-popup, .condition-popup, .decision-popup, .call-popup {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 100;
  min-width: 250px;
  max-width: min(500px, 60vw);
  max-height: min(300px, 50vh);
  overflow-y: auto;
  overflow-wrap: break-word;
  word-break: break-word;
  overscroll-behavior: contain;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  font-size: var(--font-size-xs);
  line-height: 1.6;
  text-align: left;
}

.branch-popup.is-overflowing, .condition-popup.is-overflowing,
.decision-popup.is-overflowing, .call-popup.is-overflowing {
  resize: vertical;
}

.function-name {
  font-weight: 600;
  color: var(--accent-blue);
  margin-bottom: 4px;
  padding-top: 8px;
  border-top: 1px solid var(--border-muted);
}

.function-name:first-child {
  padding-top: 0;
  border-top: none;
}

.branch-taken, .branch-not-taken, .branch-excluded,
.condition-covered, .condition-not-covered, .condition-excluded,
.decision-taken, .decision-not-taken, .decision-uncheckable,
.call-invoked, .call-not-invoked, .call-excluded {
  padding: 2px 0;
}

.branch-taken, .condition-covered, .decision-taken, .call-invoked {
  color: var(--coverage-high);
}

.branch-not-taken, .condition-not-covered, .decision-not-taken, .call-not-invoked {
  color: var(--coverage-low);
}

.branch-excluded, .condition-excluded, .decision-uncheckable, .call-excluded {
  color: var(--text-muted);
}

/* ===========================================
   Navigation
   =========================================== */

.nav-links {
  display: flex;
  gap: 12px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.nav-link svg {
  flex-shrink: 0;
}

/* ===========================================
   Functions Page
   =========================================== */

.summary-inline {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}

.summary-inline .summary-stat {
  display: flex;
  align-items: center;
  gap: 8px;
}

.summary-inline .stat-label {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.summary-inline .stat-value {
  font-weight: 600;
  font-size: var(--font-size-md);
}

.summary-inline .stat-detail {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
}

.functions-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.functions-header {
  display: grid;
  grid-template-columns: 2fr 120px 80px 80px;
  gap: 16px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.function-row {
  display: grid;
  grid-template-columns: 2fr 120px 80px 80px;
  gap: 16px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-muted);
  align-items: center;
  transition: background var(--transition-fast);
}

.function-row:hover {
  background: var(--bg-hover);
}

.function-row .col-function a {
  display: block;
}

.function-name {
  font-weight: 500;
  display: block;
}

.function-location {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.function-row .excluded {
  color: var(--text-muted);
  font-style: italic;
}

.function-row .not-called {
  color: var(--coverage-low);
}

.function-row .called {
  color: var(--coverage-high);
  font-weight: 500;
}

/* ===========================================
   Mobile Menu Button & Backdrop
   =========================================== */

/* Mobile menu button - hidden on desktop */
.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
  margin-right: 12px;
}

.mobile-menu-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.mobile-menu-btn svg {
  width: 18px;
  height: 18px;
}

/* Sidebar backdrop for mobile */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

/* ===========================================
   Responsive
   =========================================== */

@media (max-width: 1024px) {
  /* Mobile sidebar - hidden off-screen by default */
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
    left: 0;
    top: 0;
    bottom: 0;
    border-radius: 0;
    transition: transform var(--transition-normal);
  }

  /* Show sidebar when mobile-open */
  .sidebar.mobile-open {
    transform: translateX(0);
  }

  /* Main content takes full width */
  .main-content {
    margin-left: 0 !important;
  }

  .main-header {
    margin: 0;
    border-radius: 0;
    top: 0;
  }

  /* Show hamburger menu button */
  .mobile-menu-btn {
    display: flex;
  }

  /* Hide sidebar toggle (pin) button and resize handle */
  .sidebar-toggle {
    display: none;
  }

  .sidebar-resize-handle {
    display: none;
  }

  /* Show backdrop when sidebar open */
  .sidebar.mobile-open ~ .sidebar-backdrop {
    opacity: 1;
    visibility: visible;
  }

  .content-wrapper {
    padding: 16px;
  }

  .file-list-header,
  .file-row {
    grid-template-columns: 1fr 120px 80px;
  }

  .col-functions,
  .col-branches {
    display: none;
  }
}

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

  .file-list-header,
  .file-row {
    grid-template-columns: 1fr 100px;
  }

  .col-lines,
  .col-functions,
  .col-branches {
    display: none !important;
  }

  .source-header {
    flex-direction: column;
    align-items: flex-start;
  }
}


/* ===========================================
   Syntax Highlighting (Dark Theme)
   =========================================== */

/* Dark theme syntax highlighting */
.c { color: #8b949e; font-style: italic; } /* Comment */
.k { color: #ff7b72; font-weight: bold; } /* Keyword */
.o { color: #79c0ff; } /* Operator */
.cm { color: #8b949e; font-style: italic; } /* Comment.Multiline */
.cp { color: #d29922; } /* Comment.Preproc */
.c1 { color: #8b949e; font-style: italic; } /* Comment.Single */
.cs { color: #8b949e; font-weight: bold; } /* Comment.Special */
.gd { color: #f85149; } /* Generic.Deleted */
.gi { color: #3fb950; } /* Generic.Inserted */
.kc { color: #79c0ff; } /* Keyword.Constant */
.kd { color: #ff7b72; } /* Keyword.Declaration */
.kn { color: #ff7b72; } /* Keyword.Namespace */
.kt { color: #ffa657; } /* Keyword.Type */
.m { color: #a5d6ff; } /* Literal.Number */
.s { color: #a5d6ff; } /* Literal.String */
.na { color: #79c0ff; } /* Name.Attribute */
.nb { color: #ffa657; } /* Name.Builtin */
.nc { color: #ffa657; font-weight: bold; } /* Name.Class */
.nf { color: #d2a8ff; } /* Name.Function */
.nn { color: #ffa657; } /* Name.Namespace */
.nt { color: #7ee787; } /* Name.Tag */
.nv { color: #79c0ff; } /* Name.Variable */
.ow { color: #ff7b72; font-weight: bold; } /* Operator.Word */
.s1 { color: #a5d6ff; } /* Literal.String.Single */
.s2 { color: #a5d6ff; } /* Literal.String.Double */

/* Light theme syntax highlighting */
:root[data-theme="light"] .c { color: #6e7781; }
:root[data-theme="light"] .k { color: #cf222e; }
:root[data-theme="light"] .o { color: #0550ae; }
:root[data-theme="light"] .cm { color: #6e7781; }
:root[data-theme="light"] .cp { color: #9a6700; }
:root[data-theme="light"] .c1 { color: #6e7781; }
:root[data-theme="light"] .cs { color: #6e7781; }
:root[data-theme="light"] .gd { color: #cf222e; }
:root[data-theme="light"] .gi { color: #1a7f37; }
:root[data-theme="light"] .kc { color: #0550ae; }
:root[data-theme="light"] .kd { color: #cf222e; }
:root[data-theme="light"] .kn { color: #cf222e; }
:root[data-theme="light"] .kt { color: #953800; }
:root[data-theme="light"] .m { color: #0550ae; }
:root[data-theme="light"] .s { color: #0a3069; }
:root[data-theme="light"] .na { color: #0550ae; }
:root[data-theme="light"] .nb { color: #953800; }
:root[data-theme="light"] .nc { color: #953800; }
:root[data-theme="light"] .nf { color: #8250df; }
:root[data-theme="light"] .nn { color: #953800; }
:root[data-theme="light"] .nt { color: #1a7f37; }
:root[data-theme="light"] .nv { color: #0550ae; }
:root[data-theme="light"] .ow { color: #cf222e; }
:root[data-theme="light"] .s1 { color: #0a3069; }
:root[data-theme="light"] .s2 { color: #0a3069; }

/* ===========================================
   Scrollbar
   =========================================== */

::-webkit-scrollbar {
  width: 12px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Button toggle classes for gcovr compatibility */
.button_toggle_coveredLine,
.button_toggle_uncoveredLine,
.button_toggle_partialCoveredLine,
.button_toggle_excludedLine {
  text-decoration: line-through;
  opacity: 0.6;
}

.button_toggle_coveredLine.show_coveredLine,
.button_toggle_uncoveredLine.show_uncoveredLine,
.button_toggle_partialCoveredLine.show_partialCoveredLine,
.button_toggle_excludedLine.show_excludedLine {
  text-decoration: none;
  opacity: 1;
}

/* Source line filter color tints */
.source-line-filters .button_toggle_coveredLine {
  border: 1px solid rgba(63, 185, 80, 0.4);
  border-left: 3px solid rgba(63, 185, 80, 0.5);
  background: var(--coverage-high-bg);
}

.source-line-filters .button_toggle_uncoveredLine {
  border: 1px solid rgba(248, 81, 73, 0.4);
  border-left: 3px solid rgba(248, 81, 73, 0.5);
  background: var(--coverage-low-bg);
}

.source-line-filters .button_toggle_partialCoveredLine {
  border: 1px solid rgba(210, 153, 34, 0.4);
  border-left: 3px solid rgba(210, 153, 34, 0.5);
  background: var(--coverage-medium-bg);
}

.source-line-filters .button_toggle_excludedLine {
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--border-color);
  background: var(--bg-hover);
}

/* ===========================================
   Header Separator
   =========================================== */

.header-separator {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  flex-shrink: 0;
  margin: 0 4px;
}

/* ===========================================
   View Toggle (Nested / Flat)
   =========================================== */

.view-toggle {
  display: inline-flex;
  height: 30px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
}

.view-btn {
  padding: 0 14px;
  height: 100%;
  background: var(--bg-tertiary);
  border: none;
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.view-btn:first-child {
  border-right: 1px solid var(--border-color);
}

.view-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.view-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
}

/* Flat mode: hide sidebar, full-width main content */
.app-container.flat-mode .sidebar,
.early-flat-mode .sidebar {
  display: none;
}

.app-container.flat-mode .sidebar-backdrop,
.early-flat-mode .sidebar-backdrop {
  display: none;
}

.app-container.flat-mode .main-content,
.early-flat-mode .main-content {
  margin-left: 12px !important;
}