/* ==========================================================================
   noKodr & PWR Documentation Site - Design System & Custom Stylesheet
   ========================================================================== */

:root {
  /* Color Palette - Dark Theme (Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --bg-elevated: #1e293b;
  --bg-glass: rgba(17, 24, 39, 0.75);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.18);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-primary: #6366f1;
  --accent-secondary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  --accent-glow: rgba(99, 102, 241, 0.25);
  
  --card-bg: rgba(30, 41, 59, 0.5);
  --card-border: rgba(255, 255, 255, 0.07);
  --card-hover-border: rgba(99, 102, 241, 0.4);

  --link-color: #38bdf8;
  --link-hover-color: #7dd3fc;
  --link-underline-color: rgba(56, 189, 248, 0.5);
  --link-underline-hover: #38bdf8;
  --link-bg-hover: rgba(56, 189, 248, 0.12);

  --code-bg: #0d1117;
  --code-border: #30363d;
  
  --sidebar-width: 320px;
  --toc-width: 240px;
  --header-height: 56px;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(0, 0, 0, 0.16);
  
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  
  --accent-primary: #3b82f6;
  --accent-secondary: #0284c7;
  --accent-gradient: linear-gradient(135deg, #2563eb 0%, #0284c7 100%);
  --accent-glow: rgba(37, 99, 235, 0.12);
  
  --card-bg: #ffffff;
  --card-border: rgba(0, 0, 0, 0.08);
  --card-hover-border: rgba(37, 99, 235, 0.35);

  --link-color: #0284c7;
  --link-hover-color: #0369a1;
  --link-underline-color: rgba(2, 132, 199, 0.45);
  --link-underline-hover: #0284c7;
  --link-bg-hover: rgba(2, 132, 199, 0.08);

  --code-bg: #f8fafc;
  --code-border: #e2e8f0;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Links & Buttons */
a {
  color: inherit;
  text-decoration: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

/* ==========================================================================
   Header & Navbar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.mobile-toggle {
  display: none;
  color: var(--text-secondary);
  padding: 0.25rem;
  border-radius: var(--radius-sm);
}
.mobile-toggle:hover {
  color: var(--text-primary);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  transition: opacity var(--transition-fast);
}

.brand-logo:hover {
  opacity: 0.88;
}

.header-divider {
  width: 1px;
  height: 22px;
  background: var(--border-color);
  margin: 0 0.15rem;
}

.header-home-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none !important;
  flex-shrink: 0;
}

.header-home-btn:hover {
  color: var(--accent-primary) !important;
  border-color: var(--border-color-hover);
  background: var(--bg-card);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.header-home-btn:active {
  transform: translateY(0);
}

.brand-logo-img {
  height: 36px !important;
  max-height: 36px !important;
  width: auto !important;
  object-fit: contain !important;
  display: block;
}

[data-theme="dark"] .brand-logo-img.logo-dark {
  display: block !important;
}
[data-theme="dark"] .brand-logo-img.logo-light {
  display: none !important;
}

[data-theme="light"] .brand-logo-img.logo-dark {
  display: none !important;
}
[data-theme="light"] .brand-logo-img.logo-light {
  display: block !important;
}

.product-logo-img {
  object-fit: contain;
  vertical-align: middle;
}

.switcher-icon-img {
  width: 22px;
  height: 22px;
  border-radius: 4px;
}

.dropdown-item-icon-img {
  width: 26px;
  height: 26px;
  border-radius: 4px;
}

.product-card-icon-img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
}

.search-result-icon-img {
  width: 18px;
  height: 18px;
  vertical-align: middle;
  margin-right: 4px;
  border-radius: 3px;
}

/* ==========================================================================
   Custom Product Switcher Component
   ========================================================================== */
.product-switcher-container {
  position: relative;
  display: inline-block;
}

.product-switcher-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.product-switcher-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--border-color-hover);
}

.switcher-icon {
  font-size: 1rem;
}

.switcher-chevron {
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.product-switcher-btn[aria-expanded="true"] .switcher-chevron {
  transform: rotate(180deg);
}

.product-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color-hover);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  padding: 0.5rem;
  display: none;
  z-index: 200;
  animation: fadeIn 0.15s ease;
}

.product-dropdown-menu.show {
  display: block;
}

.dropdown-header {
  padding: 0.4rem 0.75rem 0.6rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.4rem;
}

.dropdown-list {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  max-height: 380px;
  overflow-y: auto;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.dropdown-item:hover, .dropdown-item.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.dropdown-item.active {
  border-left: 3px solid var(--accent-primary);
}

.dropdown-item-icon {
  font-size: 1.15rem;
}

.dropdown-item-details {
  display: flex;
  flex-direction: column;
}

.dropdown-item-title {
  font-weight: 600;
  font-size: 0.88rem;
}

.dropdown-item-badge {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Header Right (Search, Hub Link, Theme Toggle)
   ========================================================================== */
.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.9rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.search-trigger:hover {
  border-color: var(--border-color-hover);
  color: var(--text-secondary);
}

.search-kbd {
  font-size: 0.72rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
  color: var(--text-muted);
}

.header-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.header-link:hover {
  color: var(--text-primary);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

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

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

/* ==========================================================================
   App Layout
   ========================================================================== */
.app-layout {
  display: flex;
  flex: 1;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  align-items: stretch;
  height: calc(100vh - var(--header-height));
  min-height: 0;
  overflow: hidden;
}

/* Wrapper holds sidebar + resize handle & collapse tab */
.sidebar-wrap {
  display: flex;
  align-items: stretch;
  flex-shrink: 0;
  height: 100%;
  position: relative;
  transition: width 0.22s ease;
}

.sidebar-wrap.hidden {
  display: none !important;
}

/* ==========================================================================
   Left Sidebar Navigation
   ========================================================================== */
.sidebar {
  width: var(--sidebar-width);
  min-width: 180px;
  max-width: 650px;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0.45rem 1rem 1.5rem 1rem;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  transition: width 0.22s ease, min-width 0.22s ease, opacity 0.2s ease;
  flex-shrink: 0;
}

.sidebar.hidden {
  display: none !important;
}

/* Collapsed: width 0, contents hidden, no border */
.sidebar.collapsed {
  width: 0 !important;
  min-width: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
  border-right: none;
  opacity: 0;
}

/* Collapse toggle tab */
.sidebar-collapse-btn {
  position: relative;
  z-index: 35;
  width: 16px;
  height: 38px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 0 6px 6px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  padding: 0;
  outline: none;
}

.sidebar-collapse-btn:hover {
  background: var(--accent-glow);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* Flip chevron when collapsed */
.sidebar-wrap.collapsed .sidebar-collapse-btn .collapse-icon {
  transform: rotate(180deg);
}

.sidebar-wrap.collapsed .sidebar-collapse-btn {
  border-left: none;
}

/* ── Sidebar search bar ─────────────────────────────────────── */
.sidebar-search-wrap {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
  padding: 0.45rem 0.6rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.sidebar-search-wrap:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.sidebar-search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 0.82rem;
  color: var(--text-primary);
  font-family: inherit;
  min-width: 0;
}

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

.sidebar-search-clear {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  border-radius: 50%;
  transition: color var(--transition-fast), background var(--transition-fast);
}

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

.sidebar-search-clear.hidden {
  display: none;
}

/* Search result highlight */
.nav-search-match .nav-root-link,
.nav-search-match .nav-sub-link {
  font-weight: 600;
}

.nav-no-results {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 0.5rem 0.5rem;
  text-align: center;
}

.sidebar-header {
  padding-bottom: 0.35rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-product-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-secondary);
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.sidebar-product-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
  overflow-y: auto;
  padding-right: 0.15rem;
}

/* ── Root items (always visible) ─────────────────────────────── */
.nav-root-group,
.nav-root-leaf {
  display: flex;
  flex-direction: column;
}

/* Row containing optional chevron + link */
.nav-root-row,
.nav-sub-row {
  display: flex;
  align-items: center;
  gap: 0;
}

/* Standalone chevron button (no text) */
.nav-chevron-btn,
.nav-sub-toggle {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-chevron-btn:hover,
.nav-sub-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* Chevron icon */
.nav-chevron {
  flex-shrink: 0;
  transition: transform 0.18s ease;
}

.nav-root-group.open > .nav-root-row .nav-chevron,
.nav-sub-group.open > .nav-sub-row .nav-chevron {
  transform: rotate(90deg);
  color: var(--accent-primary);
}

/* Root link (the actual page link in root row) */
.nav-root-link {
  flex: 1;
  padding: 0.38rem 0.4rem 0.38rem 0.2rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.nav-root-link:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.nav-root-link.active {
  color: var(--accent-primary);
  font-weight: 600;
  background: var(--accent-glow);
}

/* Leaf row (no chevron) */
.nav-root-leaf {
  flex-direction: row;
  align-items: center;
  padding-left: 6px;
  gap: 0.4rem;
}

/* Bullet dot for leaf items */
.nav-leaf-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
  opacity: 0.5;
}

/* Collapsible children block */
.nav-root-children {
  display: none;
  flex-direction: column;
  padding-left: 0.5rem;
  border-left: 2px solid var(--border-color);
  margin-left: 1.15rem;
  margin-bottom: 0.2rem;
}

.nav-root-group.open > .nav-root-children {
  display: flex;
}

/* ── Sub-items (depth >= 1) ──────────────────────────────────── */
.nav-sub-group {
  display: flex;
  flex-direction: column;
}

.nav-sub-leaf {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-left: calc(var(--indent, 0px) + 2px);
}

.nav-sub-link {
  flex: 1;
  padding: 0.32rem 0.4rem 0.32rem 0.2rem;
  font-size: 0.855rem;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.nav-sub-link:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.nav-sub-link.active {
  color: var(--accent-primary);
  font-weight: 600;
  background: var(--accent-glow);
  border-left: 2px solid var(--accent-primary);
  margin-left: -2px;
  padding-left: calc(0.2rem + 2px);
}

.nav-sub-label {
  flex: 1;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.3rem 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-sub-children {
  display: none;
  flex-direction: column;
  border-left: 2px solid var(--border-color);
  margin-left: calc(var(--indent, 0px) + 1.15rem);
  padding-left: 0.4rem;
  margin-bottom: 0.1rem;
}

.nav-sub-group.open > .nav-sub-children {
  display: flex;
}

.nav-sub-row {
  padding-left: var(--indent, 0px);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

.sidebar-footer-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.sidebar-footer-link:hover {
  color: var(--text-secondary);
}

/* ==========================================================================
   Main Content Area
   ========================================================================== */
.main-content {
  flex: 1;
  min-width: 0;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0.5rem 1.5rem 2.5rem;
  scroll-behavior: smooth;
}

/* ==========================================================================
   View 1: Product Hub / Landing View
   ========================================================================== */
.hub-view {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}

.hub-hero {
  text-align: center;
  padding: 0.75rem 0 1.75rem;
}

.hero-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color-hover);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-secondary);
  margin-bottom: 0.6rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
  line-height: 1.25;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto;
}

.hub-product-selector-wrap {
  display: none !important;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  width: 100%;
}

.product-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-hover-border);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.product-card:hover::before {
  opacity: 1;
}

.product-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.product-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
}

.product-card-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  color: var(--accent-secondary);
}

.product-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.product-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex: 1;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.explore-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.explore-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   View 2: Markdown Reader View & Typography
   ========================================================================== */
.doc-view {
  max-width: 860px;
  margin: 0 auto;
}

.doc-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.doc-breadcrumbs a:hover {
  color: var(--text-primary);
}

.markdown-body {
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.75;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  scroll-margin-top: calc(var(--header-height) + 1.25rem);
}

.markdown-body h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.markdown-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.markdown-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 1.8rem;
  margin-bottom: 0.75rem;
}

.markdown-body p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

.markdown-body ul, .markdown-body ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.markdown-body li {
  margin-bottom: 0.4rem;
}

/* Hyperlinks & Clickable Text in Documentation */
.markdown-body a[href]:not(.callout-reference a),
.markdown-body a.doc-link:not(.callout-reference a) {
  color: var(--link-color) !important;
  font-weight: 500;
  text-decoration: none !important;
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
  padding: 0.05rem 0.2rem;
  margin: -0.05rem -0.2rem;
  display: inline;
}

.markdown-body a[href]:not(.callout-reference a):hover,
.markdown-body a.doc-link:not(.callout-reference a):hover {
  color: var(--link-hover-color) !important;
  text-decoration: none !important;
  background-color: var(--link-bg-hover) !important;
}

.markdown-body a[href]:not(.callout-reference a) code {
  color: var(--link-color);
  text-decoration: none !important;
}

.markdown-body a[href]:not(.callout-reference a):hover code {
  color: var(--link-hover-color);
  text-decoration: none !important;
}

.markdown-body a:has(> img) {
  text-decoration: none !important;
  background-color: transparent !important;
  padding: 0 !important;
  margin: 0 !important;
}

.markdown-body h1 a,
.markdown-body h2 a,
.markdown-body h3 a,
.markdown-body h4 a {
  font-size: inherit;
  font-weight: inherit;
}

.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 2.5rem 0;
}

.markdown-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  margin: 1.5rem auto;
  display: block;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.markdown-body img:hover {
  border-color: var(--border-color-hover);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

/* Inline Link Favicons, Badges, Emojis, and Table Icons */
.markdown-body a img,
.markdown-body a > img,
.markdown-body li img,
.markdown-body img.inline-doc-icon,
.markdown-body table img,
.markdown-body img[src*="favicon"],
.markdown-body img[src*="htfavicon"],
.markdown-body img[src*="atl-paas"],
.markdown-body img[src*="emoji"],
.markdown-body img[src*="reactions"] {
  display: inline-block !important;
  width: 16px !important;
  height: 16px !important;
  max-width: 16px !important;
  max-height: 16px !important;
  min-width: 16px !important;
  min-height: 16px !important;
  margin: 0 6px 0 2px !important;
  vertical-align: -2px !important;
  border: none !important;
  box-shadow: none !important;
  border-radius: 3px !important;
  object-fit: contain !important;
  cursor: pointer !important;
}

.markdown-body a img:hover {
  transform: scale(1.15);
  box-shadow: none !important;
}

/* Image Figures & Center-Aligned Captions */
.markdown-body figure,
.markdown-body .image-figure,
.markdown-body .image-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 2rem auto;
  padding: 0;
  text-align: center;
  width: 100%;
  max-width: 100%;
}

.markdown-body figure img,
.markdown-body .image-figure img,
.markdown-body .image-container img {
  margin: 0 auto;
  display: block;
}

.markdown-body figcaption,
.markdown-body .image-caption,
.markdown-body .img-caption,
.markdown-body .caption,
.markdown-body p.image-caption,
.markdown-body caption {
  text-align: center !important;
  margin-top: 0.75rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.5;
  letter-spacing: 0.01em;
  display: block;
  width: 100%;
}

.markdown-body figcaption strong,
.markdown-body .image-caption strong,
.markdown-body figcaption b,
.markdown-body .image-caption b {
  color: var(--text-primary);
  font-weight: 600;
}

/* Confluence-style Embedded Video Player Cards */
.confluence-video-card {
  margin: 1.75rem auto 2.25rem;
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  max-width: 860px;
  width: 100%;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.confluence-video-card:hover {
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.5), 0 0 24px rgba(99, 102, 241, 0.12);
}

.confluence-video-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  gap: 1rem;
}

.confluence-video-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  flex: 1;
}

.confluence-video-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.confluence-video-icon.youtube {
  background: #ff0000;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(255, 0, 0, 0.35);
}

.confluence-video-icon.vimeo {
  background: #1ab7ea;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(26, 183, 234, 0.35);
}

.confluence-video-icon.loom {
  background: #625df5;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(98, 93, 245, 0.35);
}

.confluence-video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.confluence-video-ext-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary) !important;
  text-decoration: none !important;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.confluence-video-ext-btn:hover {
  color: #ffffff !important;
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  box-shadow: 0 2px 12px var(--accent-glow);
  transform: translateY(-1px);
}

.confluence-video-player-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000000;
  overflow: hidden;
}

.confluence-video-player-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* Light Theme Styling for Video Cards */
[data-theme="light"] .confluence-video-card {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.09);
  box-shadow: 0 8px 24px -6px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .confluence-video-card:hover {
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 12px 30px -6px rgba(0, 0, 0, 0.12), 0 0 20px rgba(99, 102, 241, 0.1);
}

[data-theme="light"] .confluence-video-header {
  background: #f8fafc;
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
}

[data-theme="light"] .confluence-video-ext-btn {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  color: #475569 !important;
}

[data-theme="light"] .confluence-video-ext-btn:hover {
  color: #ffffff !important;
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* Callout Badges / Alerts */
.markdown-body blockquote {
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border-left: 4px solid var(--accent-primary);
}

.markdown-body blockquote p {
  margin-bottom: 0;
}

/* Callout: Reference */
.markdown-body blockquote.callout-reference {
  background: rgba(99, 102, 241, 0.08);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.4rem;
  margin: 1.75rem 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .markdown-body blockquote.callout-reference {
  background: rgba(59, 130, 246, 0.06);
  border-left: 4px solid var(--accent-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.markdown-body blockquote.callout-reference .callout-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent-primary);
  margin-bottom: 0.85rem;
  letter-spacing: -0.01em;
}

.markdown-body blockquote.callout-reference .callout-header svg {
  color: var(--accent-primary);
  flex-shrink: 0;
}

.markdown-body blockquote.callout-reference ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.markdown-body blockquote.callout-reference li {
  margin: 0;
}

.markdown-body blockquote.callout-reference li a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
  text-decoration: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.markdown-body blockquote.callout-reference li a::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-secondary);
  flex-shrink: 0;
}

.markdown-body blockquote.callout-reference li a:hover {
  border-color: var(--accent-primary);
  background: var(--bg-elevated);
  color: var(--accent-primary);
  transform: translateX(4px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

/* Code Blocks & Syntax Highlighting */
.markdown-body pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.markdown-body code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  color: var(--accent-secondary);
}

.code-block-wrapper {
  position: relative;
  margin: 1.5rem 0;
}

.copy-code-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.copy-code-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

/* Tables */
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.92rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.markdown-body th, .markdown-body td {
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--border-color);
  text-align: left;
  vertical-align: top;
}

.markdown-body th {
  background: var(--bg-tertiary);
  font-weight: 700;
  color: var(--text-primary);
  text-align: left;
}

.markdown-body tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

.markdown-body td h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 0.85rem;
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}

.markdown-body td h4:first-child {
  margin-top: 0;
}

.markdown-body td ul,
.markdown-body td ol {
  margin: 0.3rem 0 0.65rem 1.25rem;
  padding-left: 0.2rem;
  color: var(--text-secondary);
}

.markdown-body td li {
  margin-bottom: 0.45rem;
  line-height: 1.55;
}

.markdown-body td li:last-child {
  margin-bottom: 0;
}

.markdown-body td li strong,
.markdown-body td li b {
  color: var(--text-primary);
  font-weight: 600;
}


/* Doc Footer Navigation */
.doc-navigation-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.nav-btn {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 48%;
  transition: all var(--transition-fast);
}

.nav-btn:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.nav-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.nav-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.next-btn {
  text-align: right;
  margin-left: auto;
}

/* ==========================================================================
   Right Table of Contents (TOC)
   ========================================================================== */
.toc-wrap {
  display: flex;
  align-items: stretch;
  flex-shrink: 0;
  height: 100%;
  position: relative;
  transition: width 0.22s ease;
}

.toc-wrap.hidden {
  display: none !important;
}

.toc-sidebar {
  width: var(--toc-width);
  min-width: 170px;
  max-width: 450px;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0.45rem 1.25rem 1.5rem 1rem;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  transition: width 0.22s ease, min-width 0.22s ease, opacity 0.2s ease;
  display: flex;
  flex-direction: column;
}

.toc-sidebar.hidden {
  display: none !important;
}

/* TOC collapsed state */
.toc-sidebar.collapsed {
  width: 0 !important;
  min-width: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
  border-left: none;
  opacity: 0;
}

.toc-container {
  width: 100%;
}

/* TOC Collapse Button */
.toc-collapse-btn {
  position: relative;
  z-index: 35;
  width: 16px;
  height: 38px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px 0 0 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  padding: 0;
  outline: none;
}

.toc-collapse-btn:hover {
  background: var(--accent-glow);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* When TOC is collapsed, flip chevron icon so it points left to open */
.toc-wrap.collapsed .toc-collapse-btn .toc-collapse-icon {
  transform: rotate(180deg);
}

.toc-wrap.collapsed .toc-collapse-btn {
  border-right: none;
}

/* ==========================================================================
   Resize Handles
   ========================================================================== */
.resize-handle {
  width: 18px;
  margin-left: -9px;
  margin-right: -9px;
  cursor: col-resize;
  background: transparent;
  flex-shrink: 0;
  height: 100%;
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 1.25rem;
  z-index: 30;
  touch-action: none;
}

.resize-handle::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: var(--border-color);
  transition: background 0.15s ease, width 0.15s ease;
}

.resize-handle:hover::after,
.resize-handle.dragging::after {
  background: var(--accent-primary);
  width: 3px;
}


.toc-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-color);
}

.toc-title-left {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.83rem;
  border-left: 1px solid var(--border-color);
}

.toc-item-link {
  display: block;
  padding: 0.25rem 0.5rem 0.25rem 0.75rem;
  color: var(--text-muted);
  border-left: 2px solid transparent;
  margin-left: -1px;
  line-height: 1.35;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: all var(--transition-fast);
  white-space: normal;
  word-break: break-word;
}

.toc-item-link:hover {
  color: var(--text-primary);
  background: var(--card-bg);
}

.toc-item-link.active {
  color: var(--accent-primary);
  border-left-color: var(--accent-primary);
  background: var(--accent-glow);
  font-weight: 600;
}

/* ==========================================================================
   Search Modal (Cmd + K)
   ========================================================================== */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 8vh;
}

.search-modal-backdrop.show {
  display: flex;
  animation: backdropIn 0.18s ease;
}

@keyframes backdropIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.search-modal-card {
  width: 92%;
  max-width: 680px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color-hover);
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255,255,255,0.04);
  overflow: hidden;
  animation: modalIn 0.2s cubic-bezier(0.34, 1.3, 0.64, 1);
}

.search-modal-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.search-modal-input-wrap svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-modal-input-wrap input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 1rem;
  color: var(--text-primary);
  font-family: inherit;
  letter-spacing: -0.01em;
}

.search-modal-input-wrap input::placeholder {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.search-modal-close {
  font-size: 0.72rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 0.22rem 0.55rem;
  border-radius: 5px;
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
  white-space: nowrap;
}
.search-modal-close:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

/* Results container */
.search-results-container {
  max-height: 500px;
  overflow-y: auto;
  padding: 0.5rem 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* Results header */
.search-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.8rem 0.3rem;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.search-results-header strong {
  color: var(--text-secondary);
}

/* Section grouping */
.search-section {
  padding: 0.25rem 0;
}
.search-related-section {
  border-top: 1px solid var(--border-color);
  padding: 0.4rem 0 0.25rem;
  margin-top: 0.3rem;
}

.search-section-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.3rem 0.9rem 0.4rem;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.search-clear-recents {
  background: none;
  border: none;
  font-size: 0.68rem;
  color: var(--accent-primary);
  cursor: pointer;
  font-family: inherit;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  transition: opacity 0.15s;
}
.search-clear-recents:hover { opacity: 0.7; }

/* Result items */
.search-result-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.12s, transform 0.1s;
  position: relative;
  text-align: left;
  border: none;
  width: 100%;
  box-sizing: border-box;
}

.search-result-item:hover,
.search-result-item.search-result-focused {
  background: var(--bg-tertiary);
}

.search-result-item.search-result-focused {
  outline: 2px solid var(--accent-primary);
  outline-offset: -2px;
}

.search-result-related {
  opacity: 0.82;
}
.search-result-related:hover,
.search-result-related.search-result-focused {
  opacity: 1;
}

/* Recent item */
.search-recent-item {
  flex-direction: row;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
}
.search-recent-item svg {
  flex-shrink: 0;
  color: var(--text-muted);
}

/* Meta row (product + section) */
.search-result-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.search-result-product-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 10%, transparent);
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
}

.search-result-section {
  font-size: 0.68rem;
  color: var(--text-muted);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
}

.search-result-snippet {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 0.1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-result-badge {
  display: inline-block;
  font-size: 0.63rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent-secondary);
  background: color-mix(in srgb, var(--accent-secondary) 10%, transparent);
  padding: 0.1rem 0.45rem;
  border-radius: 20px;
  margin-top: 0.15rem;
  width: fit-content;
}

/* Search highlight */
mark.search-highlight {
  background: color-mix(in srgb, var(--accent-primary) 22%, transparent);
  color: var(--accent-primary);
  border-radius: 2px;
  padding: 0 1px;
  font-weight: 700;
}

/* Placeholder and empty states */
.search-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--text-muted);
  gap: 0.5rem;
}
.search-placeholder svg {
  opacity: 0.4;
  margin-bottom: 0.3rem;
}
.search-placeholder p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin: 0;
}
.search-placeholder span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.search-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem 1.5rem;
  gap: 0.4rem;
  color: var(--text-muted);
}
.search-empty svg {
  opacity: 0.35;
  margin-bottom: 0.2rem;
}
.search-empty p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}
.search-empty span {
  font-size: 0.78rem;
}

/* ==========================================================================
   Voice Search Button & Status Bar
   ========================================================================== */
.search-voice-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
  outline: none;
}

.search-voice-btn:hover {
  background: color-mix(in srgb, var(--accent-primary) 12%, var(--bg-tertiary));
  color: var(--accent-primary);
}

/* Active / listening state */
.search-voice-btn.voice-active {
  background: color-mix(in srgb, #ef4444 14%, var(--bg-tertiary));
  color: #ef4444;
  box-shadow: 0 0 0 2px color-mix(in srgb, #ef4444 30%, transparent);
}

/* Ripple pulse ring when listening */
.voice-ripple {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
}
.search-voice-btn.voice-active .voice-ripple {
  animation: voicePulse 1.4s ease-out infinite;
  background: radial-gradient(circle, rgba(239,68,68,0.35) 0%, transparent 70%);
}

@keyframes voicePulse {
  0%   { transform: scale(1);    opacity: 0.7; }
  70%  { transform: scale(2.1);  opacity: 0; }
  100% { transform: scale(2.1);  opacity: 0; }
}

/* Status bar below the input */
.search-voice-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1.4rem;
  font-size: 0.78rem;
  color: #ef4444;
  background: color-mix(in srgb, #ef4444 8%, var(--bg-secondary));
  border-bottom: 1px solid color-mix(in srgb, #ef4444 20%, transparent);
  animation: fadeIn 0.2s ease;
}

.search-voice-status.voice-status-error {
  color: #f97316;
  background: color-mix(in srgb, #f97316 8%, var(--bg-secondary));
  border-bottom-color: color-mix(in srgb, #f97316 20%, transparent);
}
.search-voice-status.voice-status-error .voice-status-dot {
  background: #f97316;
  animation: none;
}

/* Animated dot */
.voice-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ef4444;
  flex-shrink: 0;
  animation: voiceDot 1.2s ease-in-out infinite;
}

@keyframes voiceDot {
  0%, 100% { transform: scale(1);   opacity: 1; }
  50%       { transform: scale(1.5); opacity: 0.5; }
}

/* ==========================================================================
   Utilities & Animations
   ========================================================================== */
.hidden {
  display: none !important;
}

.doc-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 0;
  gap: 1rem;
  color: var(--text-muted);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

/* Responsive Media Queries */
@media (max-width: 1100px) {
  .toc-wrap,
  .resize-handle-right {
    display: none !important;
  }
}

@media (max-width: 868px) {
  .mobile-toggle {
    display: block;
  }

  .sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    z-index: 150;
    transform: translateX(-100%);
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.4);
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .main-content {
    padding: 1.5rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .search-text {
    display: none;
  }

  .search-kbd {
    display: none;
  }
}