/**
 * CertiSigma Info Page Styles
 * Finance-centric, minimal, elegant
 * Mobile-first responsive design
 */

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   CSS VARIABLES
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

:root {
  /* Primary - Trust Blue */
  --info-primary: #3b82f6;
  --info-primary-dark: #2563eb;
  --info-primary-light: #60a5fa;
  --info-primary-glow: rgba(59, 130, 246, 0.15);
  
  /* Accents */
  --info-success: #10b981;
  --info-warning: #f59e0b;
  --info-error: #ef4444;
  
  /* Neutrals - Dark mode default */
  --info-bg: #0a0f1a;
  --info-surface: #111827;
  --info-surface-elevated: #1f2937;
  --info-surface-hover: #374151;
  --info-border: #1f2937;
  --info-border-subtle: rgba(255, 255, 255, 0.06);
  
  /* Text - Dark mode default */
  --info-text: #f9fafb;
  --info-text-secondary: #d1d5db;
  --info-text-muted: #9ca3af;
  --info-text-dim: #6b7280;
  
  /* Spacing */
  --info-spacing-xs: 0.25rem;
  --info-spacing-sm: 0.5rem;
  --info-spacing-md: 1rem;
  --info-spacing-lg: 1.5rem;
  --info-spacing-xl: 2rem;
  --info-spacing-2xl: 3rem;
  
  /* Typography */
  --info-font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Transitions */
  --info-transition-fast: 150ms ease;
  --info-transition-normal: 250ms ease;
  --info-transition-slow: 350ms ease;
  
  /* Borders */
  --info-radius-sm: 4px;
  --info-radius-md: 8px;
  --info-radius-lg: 12px;
}

/* Light mode overrides */
@media (prefers-color-scheme: light) {
  :root {
    --info-bg: #f8fafc;
    --info-surface: #ffffff;
    --info-surface-elevated: #f1f5f9;
    --info-surface-hover: #e2e8f0;
    --info-border: #e2e8f0;
    --info-border-subtle: rgba(0, 0, 0, 0.06);
    
    --info-text: #0f172a;
    --info-text-secondary: #334155;
    --info-text-muted: #64748b;
    --info-text-dim: #94a3b8;
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   BASE LAYOUT
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-page {
  background: var(--info-bg);
  min-height: 100vh;
  color: var(--info-text-secondary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  scroll-padding-top: 130px; /* Header 60px + TOC 52px + padding */
}

html {
  scroll-padding-top: 130px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   LAYOUT: Sidebar + Main Content
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-layout {
  display: flex;
  padding-top: 60px; /* Header height */
}

/* Sidebar */
.info-sidebar {
  flex-shrink: 0;
}

/* Main content area */
.info-main {
  flex: 1;
  min-width: 0;
}

.info-container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--info-spacing-lg);
  padding-bottom: var(--info-spacing-2xl);
}

/* Mobile: Sidebar fixed below header */
@media (max-width: 1023px) {
  .info-layout {
    flex-direction: column;
    padding-top: 44px; /* Space for fixed TOC bar */
  }
  
  .info-sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    z-index: 50;
    background: var(--info-bg);
    padding: 0 16px;
    border-bottom: 1px solid var(--info-border);
  }
  
  .info-toc {
    margin: 0;
    background: transparent !important;
    border: none !important;
  }
  
  .info-toc-header {
    padding: 0px 0 !important;
    background: transparent !important;
    padding-top: 3px !important;
  }
}

/* Desktop: Sidebar fixed left */
@media (min-width: 1024px) {
  .info-layout {
    flex-direction: row;
  }
  
  .info-sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    width: 260px;
    height: calc(100vh - 60px);
    padding: var(--info-spacing-lg);
    padding-top: var(--info-spacing-xl);
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid var(--info-border);
    background: var(--info-bg);
    box-sizing: border-box;
  }
  
  .info-sidebar .info-search {
    width: 100%;
    max-width: 100%;
  }
  
  .info-sidebar .info-search-input {
    width: 100%;
    box-sizing: border-box;
  }
  
  .info-main {
    margin-left: 260px;
  }
  
  .info-container {
    max-width: 900px;
    padding: var(--info-spacing-xl);
    padding-top: var(--info-spacing-lg);
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   HEADER - Unified with main app
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--info-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--info-border);
  padding: 10px var(--info-spacing-lg);
}

.info-header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand - Logo + Title */
.info-header-brand {
  /* Same as .app-brand - aligned LEFT */
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 2vw, 0.75rem);
  text-decoration: none;
  color: var(--info-text);
  flex: 0 1 auto;
  min-width: 0;
  justify-content: flex-start;
  cursor: pointer;
  transition: opacity 0.2s ease;
  user-select: none;
}

.info-header-brand:hover {
  opacity: 0.8;
}

.info-header-logo {
  /* Same as .app-logo - 48px height */
  height: 48px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
  filter: brightness(1.1);
}

.info-header-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--info-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Small screens - match app header sizing */
@media (max-width: 380px) {
  .info-header-brand {
    gap: 0.375rem;
  }
  
  .info-header-logo {
    height: 24px;
  }
  
  .info-header-title {
    font-size: 0.938rem;
  }
}

/* Actions container */
.info-header-actions {
  display: flex;
  align-items: center;
  gap: var(--info-spacing-sm);
}

/* Language Dropdown */
.info-lang-dropdown {
  position: relative;
}

.info-lang-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 10px;
  background: var(--info-surface-elevated);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  color: var(--info-text);
  cursor: pointer;
  transition: var(--info-transition-fast);
  min-width: 44px;
  height: 36px;
}

.info-lang-flag-btn {
  font-size: 18px;
  line-height: 1;
}

.info-lang-trigger:hover {
  border-color: var(--info-primary);
}

.info-lang-chevron {
  transition: transform var(--info-transition-fast);
}

.info-lang-dropdown.open .info-lang-chevron {
  transform: rotate(180deg);
}

.info-lang-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 160px;
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--info-transition-fast);
  z-index: 200;
}

.info-lang-dropdown.open .info-lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.info-lang-option {
  display: flex;
  align-items: center;
  gap: var(--info-spacing-sm);
  width: 100%;
  padding: 10px 14px;
  background: transparent;
  border: none;
  color: var(--info-text-secondary);
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  transition: var(--info-transition-fast);
}

.info-lang-option:first-child {
  border-radius: var(--info-radius-md) var(--info-radius-md) 0 0;
}

.info-lang-option:last-child {
  border-radius: 0 0 var(--info-radius-md) var(--info-radius-md);
}

.info-lang-option:hover:not(:disabled) {
  background: var(--info-surface-elevated);
  color: var(--info-text);
}

.info-lang-option.active {
  background: var(--info-primary-glow);
  color: var(--info-primary);
  font-weight: 600;
}

.info-lang-option:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.info-lang-flag {
  font-size: 1.1rem;
}

.info-lang-soon {
  margin-left: auto;
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--info-text-dim);
  background: var(--info-surface-elevated);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Back/Home button */
.info-hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--info-surface-elevated);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  color: var(--info-text-secondary);
  cursor: pointer;
  transition: var(--info-transition-fast);
}

.info-hamburger:hover {
  background: var(--info-surface-hover);
  color: var(--info-text);
  border-color: var(--info-primary);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   TABLE OF CONTENTS (TOC) - Mobile: compact sticky bar
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-toc {
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  overflow: hidden;
}

/* Mobile: no border/background - parent sidebar handles it */
@media (max-width: 1023px) {
  .info-toc {
    background: transparent;
    border: none;
    border-radius: 0;
  }
}

/* Desktop: no border, transparent, always open */
@media (min-width: 1024px) {
  .info-toc {
    background: transparent;
    border: none;
    border-radius: 0;
  }
  
  .info-toc-header {
    display: none !important;
  }
  
  .info-toc-content {
    max-height: none !important;
  }
}

.info-toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  min-height: 40px;
  cursor: pointer;
  user-select: none;
  background: transparent;
  transition: var(--info-transition-fast);
  gap: 10px;
}

.info-toc-header:hover {
  background: var(--info-surface-elevated);
}

.info-toc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.info-toc-title svg {
  width: 18px;
  height: 18px;
  color: var(--info-primary);
  flex-shrink: 0;
}

.info-toc-current {
  font-size: 1rem;
  font-weight: 500;
  color: var(--info-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.4;
}

.info-toc-chevron {
  width: 18px;
  height: 18px;
  color: var(--info-text-muted);
  transition: transform var(--info-transition-normal);
  flex-shrink: 0;
}

.info-toc.open .info-toc-chevron {
  transform: rotate(180deg);
}

/* Hide mobile-only elements on desktop (always visible TOC) */
@media (min-width: 1024px) {
  .info-toc-current {
    display: none;
  }
  
  .info-toc-chevron {
    display: none;
  }
  
  .info-hamburger {
    display: none !important;
  }
}

.info-toc-chevron {
  width: 20px;
  height: 20px;
  color: var(--info-text-muted);
  transition: transform var(--info-transition-normal);
}

.info-toc.open .info-toc-chevron {
  transform: rotate(180deg);
}

.info-toc-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--info-transition-normal);
}

.info-toc.open .info-toc-content {
  max-height: 500px;
}

.info-toc-list {
  list-style: none;
  padding: var(--info-spacing-sm) 0;
  margin: 0;
}

.info-toc-item {
  margin: 0;
}

.info-toc-link {
  display: flex;
  align-items: center;
  gap: var(--info-spacing-sm);
  padding: var(--info-spacing-sm) var(--info-spacing-lg);
  color: var(--info-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--info-transition-fast);
  border-left: 2px solid transparent;
}

.info-toc-link:hover {
  color: var(--info-text);
  background: var(--info-surface-hover);
}

.info-toc-link.active {
  color: var(--info-primary);
  border-left-color: var(--info-primary);
  background: var(--info-primary-glow);
  font-weight: 500;
}

.info-toc-number {
  font-family: var(--info-font-mono);
  font-size: 0.75rem;
  color: var(--info-text-dim);
  min-width: 1.5rem;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SECTIONS
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-section {
  margin-bottom: var(--info-spacing-2xl);
  scroll-margin-top: 100px;
}

.info-section-header {
  display: flex;
  align-items: center;
  gap: var(--info-spacing-md);
  margin-bottom: var(--info-spacing-lg);
  padding-bottom: var(--info-spacing-md);
  border-bottom: 2px solid var(--info-primary);
}

.info-section-number {
  font-family: var(--info-font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--info-primary);
  background: var(--info-primary-glow);
  padding: var(--info-spacing-xs) var(--info-spacing-sm);
  border-radius: var(--info-radius-sm);
}

.info-section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--info-text);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin: 0;
}

.info-section-intro {
  font-size: 1rem;
  color: var(--info-text-secondary);
  margin-bottom: var(--info-spacing-xl);
  line-height: 1.8;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ACCORDION (Subsections)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-accordion {
  margin-bottom: var(--info-spacing-md);
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-lg);
  overflow: hidden;
  transition: var(--info-transition-fast);
}

.info-accordion:hover {
  border-color: var(--info-border-subtle);
}

.info-accordion.open {
  border-color: var(--info-primary);
  box-shadow: 0 0 0 1px var(--info-primary-glow);
}

.info-accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--info-spacing-md) var(--info-spacing-lg);
  cursor: pointer;
  user-select: none;
  transition: var(--info-transition-fast);
}

.info-accordion-header:hover {
  background: var(--info-surface-elevated);
}

.info-accordion-title-wrap {
  display: flex;
  align-items: center;
  gap: var(--info-spacing-sm);
}

.info-accordion-number {
  font-family: var(--info-font-mono);
  font-size: 0.75rem;
  color: var(--info-text-dim);
}

.info-accordion-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--info-text);
  margin: 0;
}

.info-accordion-chevron {
  width: 20px;
  height: 20px;
  color: var(--info-text-muted);
  transition: transform var(--info-transition-normal);
  flex-shrink: 0;
}

.info-accordion.open .info-accordion-chevron {
  transform: rotate(180deg);
  color: var(--info-primary);
}

.info-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--info-transition-slow);
}

.info-accordion.open .info-accordion-content {
  max-height: 10000px; /* Large enough for any content */
}

.info-accordion-body {
  padding: 0 var(--info-spacing-lg) var(--info-spacing-lg);
  border-top: 1px solid var(--info-border);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   CONTENT ELEMENTS
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-content p {
  margin: 0 0 var(--info-spacing-md);
  color: var(--info-text-secondary);
}

.info-content p:last-child {
  margin-bottom: 0;
}

/* Lists */
.info-list {
  list-style: none;
  padding: 0;
  margin: var(--info-spacing-md) 0;
}

.info-list li {
  position: relative;
  padding-left: var(--info-spacing-lg);
  margin-bottom: var(--info-spacing-sm);
  color: var(--info-text-secondary);
}

.info-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--info-primary);
  border-radius: 50%;
}

/* Highlight boxes */
.info-highlight {
  background: var(--info-surface-elevated);
  border: 1px solid var(--info-border);
  border-left: 3px solid var(--info-primary);
  border-radius: var(--info-radius-md);
  padding: var(--info-spacing-md) var(--info-spacing-lg);
  margin: var(--info-spacing-lg) 0;
}

.info-highlight-title {
  font-weight: 600;
  color: var(--info-text);
  margin-bottom: var(--info-spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--info-spacing-sm);
}

.info-highlight-title svg {
  width: 18px;
  height: 18px;
  color: var(--info-primary);
}

.info-highlight-content {
  color: var(--info-text-secondary);
  line-height: 1.7;
}

.info-highlight-content p {
  margin: 0 0 0.5rem 0;
}

.info-highlight-content p:last-child {
  margin-bottom: 0;
}

.info-highlight-list {
  margin: 0.75rem 0 0 0;
  padding-left: 1.25rem;
  list-style: disc;
}

.info-highlight-list li {
  margin-bottom: 0.35rem;
  color: var(--info-text-secondary);
}

.info-highlight-list li:last-child {
  margin-bottom: 0;
}

/* Comparison boxes */
.info-comparison {
  display: grid;
  gap: var(--info-spacing-md);
  margin: var(--info-spacing-lg) 0;
}

@media (min-width: 600px) {
  .info-comparison {
    grid-template-columns: 1fr 1fr;
  }
}

.info-comparison-item {
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  padding: var(--info-spacing-md);
}

.info-comparison-item:first-child {
  border-left: 3px solid var(--info-error);
}

.info-comparison-item:last-child {
  border-left: 3px solid var(--info-success);
}

.info-comparison-title {
  font-weight: 600;
  color: var(--info-text);
  margin-bottom: var(--info-spacing-sm);
  font-size: 0.9rem;
}

.info-comparison-content {
  color: var(--info-text-muted);
  font-size: 0.9rem;
}

/* Use cases */
.info-use-cases {
  display: grid;
  gap: var(--info-spacing-md);
  margin: var(--info-spacing-lg) 0;
}

.info-use-case {
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  padding: var(--info-spacing-md);
  transition: var(--info-transition-fast);
}

.info-use-case:hover {
  border-color: var(--info-primary);
  background: var(--info-surface-elevated);
}

.info-use-case-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--info-spacing-sm);
  margin-bottom: var(--info-spacing-sm);
}

.info-use-case-title {
  font-weight: 600;
  color: var(--info-text);
  font-size: 0.95rem;
}

.info-use-case-tags {
  display: flex;
  gap: var(--info-spacing-xs);
  flex-wrap: wrap;
}

.info-use-case-tag {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 6px;
  background: var(--info-primary-glow);
  color: var(--info-primary);
  border-radius: var(--info-radius-sm);
}

.info-use-case-desc {
  color: var(--info-text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* FAQ - Clean, minimal styling with subtle left indicator */
.info-faq {
  margin: var(--info-spacing-sm) 0 0 0;
  position: relative;
}

/* Single blue line indicator for sub-FAQ hierarchy */
.info-faq::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--info-primary);
  opacity: 0.5;
}

/* FAQ Item - card with subtle border */
.info-faq-item {
  padding: var(--info-spacing-sm) var(--info-spacing-md);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  margin-bottom: var(--info-spacing-sm); /* More space between FAQ items */
  transition: border-color var(--info-transition-fast);
}

.info-faq-item:last-child {
  margin-bottom: 0;
}

.info-faq-item:hover {
  border-color: var(--info-primary);
}

.info-faq-item.open {
  border-color: var(--info-primary);
}

/* FAQ Header (clickable) - flex layout */
.info-faq-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  width: 100%;
}

.info-faq-header:hover .info-faq-q {
  opacity: 0.7;
}


/* FAQ Number - small, top left */
.info-faq-num {
  color: var(--info-text-dim);
  font-size: 0.65rem;
  font-weight: 500;
  font-family: var(--info-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* FAQ Question text - takes remaining space */
.info-faq-q {
  flex: 1;
  font-weight: 500;
  color: var(--info-text);
  font-size: 1rem;
  line-height: 1.5;
  transition: opacity var(--info-transition-fast);
}

/* Actions: copy link + chevron - right side */
.info-faq-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  margin-left: auto;
}

/* Copy link button for FAQ */
.info-copy-link-faq {
  opacity: 0;
  padding: 4px;
  background: transparent;
  border: none;
  color: var(--info-text-muted);
  cursor: pointer;
  border-radius: 4px;
  transition: all var(--info-transition-fast);
}

.info-faq-header:hover .info-copy-link-faq {
  opacity: 1;
}

.info-copy-link-faq:hover {
  color: var(--info-primary);
}

/* Chevron icon */
.info-faq-chevron {
  color: var(--info-text-muted);
  transition: transform var(--info-transition-normal);
  flex-shrink: 0;
}

.info-faq-item.open .info-faq-chevron {
  transform: rotate(180deg);
}

/* FAQ Answer (collapsed by default) - NO indent */
.info-faq-answer {
  display: none;
  color: var(--info-text-secondary);
  padding-top: var(--info-spacing-sm);
  font-size: 0.95rem;
  line-height: 1.7;
}

.info-faq-item.open .info-faq-answer {
  display: block;
}

.info-faq-answer p {
  margin: 0 0 0.75rem 0;
}

.info-faq-answer p:last-child {
  margin-bottom: 0;
}

/* Lists inside FAQ answers */
.info-faq-list {
  margin: 0.5rem 0;
  padding-left: 1.25rem;
  list-style: disc;
}

.info-faq-list li {
  margin-bottom: 0.25rem;
}

/* Highlight for deep-linked FAQ */
.info-faq-item.highlight-target {
  background: var(--info-primary-glow);
  margin: 0 calc(-1 * var(--info-spacing-sm));
  padding: var(--info-spacing-sm);
  border-radius: var(--info-radius-sm);
}

/* Mobile */
@media (max-width: 640px) {
  .info-faq-num {
    font-size: 0.7rem;
    margin-top: -6px;
    margin-bottom: -6px;
  }
  
  .info-faq-header {
    row-gap: 0;
  }
  
  .info-faq-q {
    font-size: 0.95rem;
    flex-basis: 100%; /* Question on its own line on mobile */
    order: 2; /* After number and actions */
    margin-top: 2px;
  }
  
  .info-faq-actions {
    order: 1; /* Actions next to number on first line */
    margin-top: -6px;
    margin-bottom: -6px;
  }
  
  .info-copy-link-faq {
    opacity: 1;
  }
  
  .info-faq-answer {
    padding-left: 0;
    font-size: 0.9rem;
  }
  
  /* Tighter sub-FAQ card on mobile - reduce internal padding */
  .info-faq-item {
    padding: 6px 10px;
    margin-bottom: 10px;
  }
  
  /* Accordion body: expand to edges */
  .info-accordion-body {
    margin-left: -5px;
    margin-right: -5px;
  }
}

/* Desktop: FAQ items with more spacing */
@media (min-width: 1024px) {
  .info-faq-item {
    margin-bottom: 12px; /* More breathing room between FAQ items on desktop */
  }
  
  .info-faq-header {
    flex-wrap: nowrap; /* Keep all on one line on desktop */
  }
}

/* Provider cards */
.info-provider {
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-lg);
  padding: var(--info-spacing-lg);
  margin: var(--info-spacing-md) 0;
}

.info-provider-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--info-spacing-sm);
}

.info-provider-name {
  font-weight: 700;
  color: var(--info-text);
  font-size: 1.1rem;
}

.info-provider-location {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: var(--info-spacing-xs) var(--info-spacing-sm);
  background: var(--info-success);
  color: white;
  border-radius: var(--info-radius-sm);
}

.info-provider-role {
  font-size: 0.875rem;
  color: var(--info-primary);
  font-weight: 500;
  margin-bottom: var(--info-spacing-sm);
}

.info-provider-desc {
  color: var(--info-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Legal text */
.info-legal {
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  padding: var(--info-spacing-lg);
  margin: var(--info-spacing-lg) 0;
}

.info-legal-title {
  font-weight: 700;
  color: var(--info-text);
  margin-bottom: var(--info-spacing-md);
  font-size: 1.1rem;
}

.info-legal-content {
  color: var(--info-text-muted);
  font-size: 0.9rem;
}

/* Contact */
.info-contact {
  background: var(--info-primary-glow);
  border: 1px solid var(--info-primary);
  border-radius: var(--info-radius-md);
  padding: var(--info-spacing-lg);
  margin: var(--info-spacing-lg) 0;
  text-align: center;
}

.info-contact-content {
  color: var(--info-text-secondary);
  white-space: pre-line;
}

.info-contact a {
  color: var(--info-primary);
  text-decoration: none;
  font-weight: 500;
}

.info-contact a:hover {
  text-decoration: underline;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   COPY LINK BUTTON (Mobile-First)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-copy-link {
  /* Reset button styles */
  background: transparent;
  border: none;
  cursor: pointer;
  
  /* Mobile-first: always visible, good tap target */
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 10px;
  
  /* Styling */
  color: var(--info-text-dim);
  opacity: 0.6;
  border-radius: var(--info-radius-sm);
  transition: var(--info-transition-fast);
}

.info-copy-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Hover state (desktop only) */
@media (hover: hover) {
  .info-copy-link {
    opacity: 0.4;
  }
  
  .info-copy-link:hover {
    opacity: 1;
    color: var(--info-primary);
    background: var(--info-primary-glow);
  }
}

/* Active/tap state */
.info-copy-link:active {
  transform: scale(0.95);
  opacity: 1;
}

/* Copied feedback state */
.info-copy-link.copied {
  color: var(--info-success);
  opacity: 1;
}

.info-copy-link.copied svg {
  animation: copyPulse 0.3s ease;
}

@keyframes copyPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* Subsection variant - slightly smaller */
.info-copy-link-sub {
  min-width: 40px;
  min-height: 40px;
  padding: 8px;
}

.info-copy-link-sub svg {
  width: 16px;
  height: 16px;
}

/* Accordion actions container */
.info-accordion-actions {
  display: flex;
  align-items: center;
  gap: var(--info-spacing-xs);
}

/* Footer bar - mirrors header style for closing accordion */
.info-accordion-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--info-spacing-sm) var(--info-spacing-md);
  margin-top: var(--info-spacing-md);
  
  /* Match header border style */
  border-top: 1px solid var(--info-border);
  
  cursor: pointer;
  transition: var(--info-transition-fast);
}

.info-accordion-footer:hover {
  background: var(--info-surface-elevated);
}

.info-accordion-footer .info-accordion-chevron-up {
  width: 20px;
  height: 20px;
  color: var(--info-text-muted);
  transition: var(--info-transition-fast);
}

.info-accordion-footer:hover .info-accordion-chevron-up {
  color: var(--info-primary);
  transform: translateY(-2px);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   HIGHLIGHT ANIMATION (Deep link target)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@keyframes highlightPulse {
  0% {
    box-shadow: 0 0 0 0 var(--info-primary-glow);
    background: transparent;
  }
  30% {
    box-shadow: 0 0 0 4px var(--info-primary-glow), 0 0 20px var(--info-primary-glow);
    background: var(--info-primary-glow);
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
    background: transparent;
  }
}

.highlight-target {
  animation: highlightPulse 2s ease-out forwards;
  border-color: var(--info-primary) !important;
}

/* Section highlight */
.info-section.highlight-target {
  border-radius: var(--info-radius-lg);
}

/* Accordion highlight */
.info-accordion.highlight-target {
  border-color: var(--info-primary) !important;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   FOOTER
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-footer {
  text-align: center;
  padding: var(--info-spacing-xl) 0;
  border-top: 1px solid var(--info-border);
  margin-top: var(--info-spacing-2xl);
}

.info-footer-text {
  color: var(--info-text-dim);
  font-size: 0.875rem;
}

.info-footer a {
  color: var(--info-primary);
  text-decoration: none;
}

.info-footer a:hover {
  text-decoration: underline;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ANIMATIONS
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.info-section {
  animation: fadeIn 0.4s ease forwards;
}

.info-section:nth-child(1) { animation-delay: 0.1s; }
.info-section:nth-child(2) { animation-delay: 0.15s; }
.info-section:nth-child(3) { animation-delay: 0.2s; }
.info-section:nth-child(4) { animation-delay: 0.25s; }
.info-section:nth-child(5) { animation-delay: 0.3s; }
.info-section:nth-child(6) { animation-delay: 0.35s; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   RESPONSIVE
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@media (max-width: 640px) {
  .info-container {
    padding: var(--info-spacing-md);
    padding-top: 70px;
  }
  
  .info-section-title {
    font-size: 1.25rem;
  }
  
  .info-toc {
    position: relative;
    top: 0;
  }
  
  .info-back-btn span {
    display: none;
  }
}

/* Desktop (>= 1024px): TOC sidebar styles */
@media (min-width: 1024px) {
  /* TOC always visible on desktop sidebar */
  .info-toc .info-toc-content {
    max-height: none;
  }
  
  /* Show "Info & Docs" title on desktop */
  .info-toc::before {
    content: 'Info & Docs';
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--info-text-muted);
    padding: 0 16px 12px;
    border-bottom: 1px solid var(--info-border);
    margin-bottom: 8px;
  }
  
  .info-toc-list {
    padding: 0;
  }
  
  .info-toc-link {
    padding: 10px 16px;
    font-size: 0.875rem;
    border-left: 3px solid transparent;
  }
  
  .info-toc-link:hover {
    background: var(--info-surface);
  }
  
  .info-toc-link.active {
    border-left-color: var(--info-primary);
    background: var(--info-primary-glow);
  }
  
  .info-use-cases {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Larger text on desktop */
  .info-section-intro {
    font-size: 1.1rem;
  }
  
  .info-faq-q {
    font-size: 1.05rem;
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   COPY TO CLIPBOARD TOAST
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.info-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--info-surface-elevated);
  border: 1px solid var(--info-primary);
  color: var(--info-text);
  padding: var(--info-spacing-sm) var(--info-spacing-lg);
  border-radius: var(--info-radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0;
  transition: all var(--info-transition-normal);
  z-index: 1000;
}

.info-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   BACK TO TOP BUTTON
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  
  /* Hidden by default */
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  
  /* Styling */
  background: var(--info-surface-elevated);
  border: 1px solid var(--info-border);
  border-radius: 50%;
  color: var(--info-text-muted);
  cursor: pointer;
  
  /* Center icon */
  display: flex;
  align-items: center;
  justify-content: center;
  
  /* Effects */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all var(--info-transition-normal);
  z-index: 90;
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

.back-to-top:hover {
  background: var(--info-primary);
  border-color: var(--info-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.3);
}

.back-to-top:active {
  transform: translateY(0);
}

/* Visible state */
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Mobile adjustments - use safe-area for iOS notch/home bar */
@media (max-width: 640px) {
  .back-to-top {
    bottom: calc(24px + env(safe-area-inset-bottom, 0px));
    right: 16px;
    width: 44px;
    height: 44px;
  }
  
  .back-to-top svg {
    width: 18px;
    height: 18px;
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SEARCH - Forensic-grade fuzzy search
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* Search Container */
.info-search {
  position: relative;
  margin-bottom: var(--info-spacing-md);
  width: 100%;
  box-sizing: border-box;
}

/* Search Input */
.info-search-input {
  width: 100%;
  padding: 10px 12px 10px 38px;
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  color: var(--info-text);
  font-size: 16px; /* Prevent iOS zoom on focus */
  outline: none;
  transition: all var(--info-transition-fast);
}

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

.info-search-input:focus {
  border-color: var(--info-primary);
  box-shadow: 0 0 0 3px var(--info-primary-glow);
}

/* Search Icon */
.info-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--info-text-muted);
  pointer-events: none;
}

.info-search-input:focus + .info-search-icon {
  color: var(--info-primary);
}

/* Clear Button */
.info-search-clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  padding: 0;
  background: var(--info-surface-hover);
  border: none;
  border-radius: 50%;
  color: var(--info-text-muted);
  cursor: pointer;
  opacity: 0;
  transition: all var(--info-transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-search.has-value .info-search-clear {
  opacity: 1;
}

.info-search-clear:hover {
  background: var(--info-primary);
  color: white;
}

/* Search Results Dropdown */
.info-search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  max-height: min(400px, 60vh);
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--info-transition-fast);
}

.info-search-results.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Result Item */
.info-search-result {
  display: block;
  padding: 12px 16px;
  border-bottom: 1px solid var(--info-border-subtle);
  cursor: pointer;
  transition: background var(--info-transition-fast);
  text-decoration: none;
  color: inherit;
}

.info-search-result:last-child {
  border-bottom: none;
}

.info-search-result:hover,
.info-search-result.selected {
  background: var(--info-primary-glow);
}

.info-search-result-type {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border-radius: 3px;
  margin-bottom: 4px;
}

.info-search-result-type.section {
  background: var(--info-primary);
  color: white;
}

.info-search-result-type.subsection {
  background: rgba(59, 130, 246, 0.2);
  color: var(--info-primary);
}

.info-search-result-type.faq {
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
}

.info-search-result-title {
  font-weight: 500;
  color: var(--info-text);
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.info-search-result-context {
  font-size: 0.8rem;
  color: var(--info-text-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Highlight matched text */
.info-search-highlight {
  background: rgba(59, 130, 246, 0.3);
  color: var(--info-text);
  padding: 0 2px;
  border-radius: 2px;
}

/* No results */
.info-search-no-results {
  padding: 24px 16px;
  text-align: center;
  color: var(--info-text-muted);
  font-size: 0.875rem;
}

.info-search-no-results svg {
  width: 32px;
  height: 32px;
  margin-bottom: 8px;
  opacity: 0.5;
}

/* Keyboard hint */
.info-search-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--info-surface-elevated);
  border-top: 1px solid var(--info-border);
  font-size: 0.7rem;
  color: var(--info-text-muted);
}

.info-search-hint kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 18px;
  padding: 0 4px;
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: 3px;
  font-family: var(--info-font-mono);
  font-size: 0.65rem;
}

/* Mobile Search Button (header) */
.info-search-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: var(--info-surface-elevated);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  color: var(--info-text-muted);
  cursor: pointer;
  transition: all var(--info-transition-fast);
}

.info-search-btn:hover {
  background: var(--info-surface-hover);
  color: var(--info-text);
  border-color: var(--info-primary);
}

/* Mobile Search Overlay */
.info-search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--info-bg);
  z-index: 2000;
  padding: 12px;
  padding-top: calc(12px + env(safe-area-inset-top, 0px));
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  padding-left: calc(12px + env(safe-area-inset-left, 0px));
  padding-right: calc(12px + env(safe-area-inset-right, 0px));
  flex-direction: column;
  overflow: hidden;
  box-sizing: border-box;
  width: 100%;
}

.info-search-overlay.open {
  display: flex;
}

.info-search-overlay-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-shrink: 0;
  width: 100%;
  box-sizing: border-box;
}

.info-search-overlay .info-search {
  flex: 1;
  margin-bottom: 0;
}

.info-search-overlay .info-search {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.info-search-overlay .info-search-input {
  padding-right: 44px; /* Space for clear button */
  width: 100%;
  box-sizing: border-box;
}

.info-search-overlay .info-search-clear {
  right: 12px;
}

.info-search-overlay-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--info-surface-elevated);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  color: var(--info-text-muted);
  cursor: pointer;
  flex-shrink: 0;
}

.info-search-overlay-close:hover {
  background: var(--info-surface-hover);
  color: var(--info-text);
}

.info-search-overlay-results {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: var(--info-radius-md);
  -webkit-overflow-scrolling: touch;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

/* Tap outside to close - invisible backdrop */
.info-search-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
}

/* Mobile: show search button, hide sidebar search */
@media (max-width: 1023px) {
  .info-search-btn {
    display: flex;
  }
  
  .info-sidebar .info-search {
    display: none;
  }
  
  /* Ensure results don't overflow on mobile */
  .info-search-overlay-results .info-search-result {
    word-wrap: break-word;
    overflow-wrap: break-word;
  }
  
  .info-search-overlay-results .info-search-result-title {
    font-size: 0.95rem;
  }
  
  .info-search-overlay-results .info-search-result-context {
    font-size: 0.85rem;
  }
  
  /* Hide keyboard hints on mobile */
  .info-search-overlay-results .info-search-hint {
    display: none;
  }
}

/* Desktop: hide mobile search elements */
@media (min-width: 1024px) {
  .info-search-btn {
    display: none;
  }
  
  .info-search-overlay {
    display: none !important;
  }
}