/* ============================================
   CoreIntel National AI OS - Design System
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Brand Colors */
  --ci-navy: #1E2761;
  --ci-navy-dark: #141a42;
  --ci-navy-light: #2a3578;
  --ci-ice-blue: #CADCFC;
  --ci-ice-blue-light: #e8f4fc;
  --ci-gold: #D4AF37;
  --ci-gold-dark: #b8962e;
  --ci-white: #ffffff;
  --ci-gray-100: #f8fafc;
  --ci-gray-200: #e2e8f0;
  --ci-gray-300: #cbd5e1;
  --ci-gray-400: #94a3b8;
  --ci-gray-500: #64748b;
  --ci-gray-600: #475569;
  --ci-gray-700: #334155;
  --ci-gray-800: #1e293b;

  /* Typography Scale */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1.125rem; /* 18px */
  --font-size-lg: 1.5rem;     /* 24px */
  --font-size-xl: 2rem;       /* 32px */
  --font-size-2xl: 2.75rem;   /* 44px */
  --font-size-3xl: 3.5rem;    /* 56px */

  /* Spacing Scale (8px base) */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.5rem;   /* 24px */
  --space-6: 2rem;     /* 32px */
  --space-8: 3rem;     /* 48px */
  --space-10: 4rem;    /* 64px */
  --space-12: 5rem;    /* 80px */
  --space-16: 8rem;    /* 128px */

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Dark Theme Colors */
  --dark-bg-primary: #0f172a;
  --dark-bg-secondary: #1e293b;
  --dark-bg-tertiary: #020617;
  --dark-bg-card: rgba(30, 41, 59, 0.8);
  --dark-text-primary: #f8fafc;
  --dark-text-secondary: #e2e8f0;
  --dark-text-muted: #94a3b8;
  --dark-border: rgba(99, 102, 241, 0.2);
  --dark-border-hover: rgba(99, 102, 241, 0.4);
  --dark-accent: #6366f1;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--ci-gray-800);
  background-color: var(--ci-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--ci-navy);
}

h1 {
  font-size: var(--font-size-2xl);
}

h2 {
  font-size: var(--font-size-xl);
}

h3 {
  font-size: var(--font-size-lg);
}

h4 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--space-4);
}

.text-gold {
  color: var(--ci-gold);
}

.text-navy {
  color: var(--ci-navy);
}

.text-center {
  text-align: center;
}

.text-sm {
  font-size: var(--font-size-sm);
}

.text-lg {
  font-size: var(--font-size-lg);
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container-narrow {
  max-width: 800px;
}

.container-wide {
  max-width: 1400px;
}

.section {
  padding: var(--space-12) 0;
}

.section-sm {
  padding: var(--space-8) 0;
}

.section-lg {
  padding: var(--space-16) 0;
}

.section-navy {
  background-color: var(--ci-navy);
  color: var(--ci-white);
}

.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-navy h4 {
  color: var(--ci-white);
}

.section-ice {
  background-color: var(--ci-ice-blue-light);
}

.section-gray {
  background-color: var(--ci-gray-100);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

/* ============================================
   Navigation
   ============================================ */
.ci-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-5) var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.ci-nav--transparent {
  background: transparent;
}

.ci-nav--solid {
  background: rgba(30, 39, 97, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg);
}

/* Dark theme navigation (for index page with 3D hero) */
.ci-nav--dark {
  background: rgba(10, 15, 26, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(99, 102, 241, 0.2);
}

.ci-nav--dark .ci-nav-logo {
  color: var(--ci-white);
}

.ci-nav--dark .ci-nav-links a {
  color: rgba(255, 255, 255, 0.8);
}

.ci-nav--dark .ci-nav-links a:hover {
  color: var(--ci-gold);
}

.ci-nav--dark .ci-nav-toggle {
  color: var(--ci-white);
}

/* Enhanced scroll transition for dark nav */
.ci-nav--dark.ci-nav--scrolled {
  background: rgba(10, 15, 26, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), 0 0 1px rgba(99, 102, 241, 0.3);
}

.ci-nav--solid .ci-nav-logo,
.ci-nav--solid .ci-nav-links a,
.ci-nav--solid .ci-nav-toggle {
  color: var(--ci-white);
}

.ci-nav-logo {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ci-navy);
  letter-spacing: -0.02em;
}

.ci-nav-logo span {
  color: var(--ci-gold);
}

.ci-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.ci-nav-links a {
  color: var(--ci-gray-700);
  font-size: var(--font-size-base);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.ci-nav-links a:hover {
  color: var(--ci-gold);
}

.ci-nav-cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-6);
  background: var(--ci-gold);
  color: var(--ci-navy) !important;
  font-weight: 600;
  font-size: var(--font-size-base);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.ci-nav-cta:hover {
  background: var(--ci-gold-dark);
  transform: translateY(-1px);
}

.ci-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--ci-navy);
  padding: var(--space-2);
  min-width: 48px;
  min-height: 48px;
}

/* Mobile Navigation */
@media (max-width: 900px) {
  .ci-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .ci-nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--ci-navy);
    flex-direction: column;
    padding: var(--space-16) var(--space-6);
    gap: var(--space-4);
    transition: right var(--transition-base);
    box-shadow: var(--shadow-xl);
  }

  .ci-nav-links.open {
    right: 0;
  }

  .ci-nav-links a {
    color: var(--ci-white);
    font-size: var(--font-size-base);
    padding: var(--space-4) 0;
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

  .ci-nav-cta {
    margin-top: var(--space-4);
    width: 100%;
    justify-content: center;
    padding: var(--space-4);
  }

  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    z-index: 999;
  }

  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
}

.btn-primary {
  background: var(--ci-gold);
  color: var(--ci-navy);
  border-color: var(--ci-gold);
}

.btn-primary:hover {
  background: var(--ci-gold-dark);
  border-color: var(--ci-gold-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--ci-navy);
  border-color: var(--ci-navy);
}

.btn-secondary:hover {
  background: var(--ci-navy);
  color: var(--ci-white);
}

.btn-white {
  background: var(--ci-white);
  color: var(--ci-navy);
  border-color: var(--ci-white);
}

.btn-white:hover {
  background: var(--ci-ice-blue);
  border-color: var(--ci-ice-blue);
}

.btn-outline-white {
  background: transparent;
  color: var(--ci-white);
  border-color: var(--ci-white);
}

.btn-outline-white:hover {
  background: var(--ci-white);
  color: var(--ci-navy);
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--ci-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ci-ice-blue-light);
  border-radius: var(--radius-md);
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

.card-text {
  color: var(--ci-gray-600);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--ci-gold);
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-top: var(--space-4);
}

.card-link:hover {
  color: var(--ci-gold-dark);
}

/* Sector Card Variant */
.sector-card {
  position: relative;
  overflow: hidden;
  border-left: 4px solid var(--sector-color, var(--ci-gold));
  background: var(--ci-white);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.sector-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sector-color, var(--ci-gold)), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.sector-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--sector-color, var(--ci-gold));
}

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

.sector-card .card-icon {
  background: linear-gradient(135deg, var(--ci-navy) 0%, var(--ci-navy-light) 100%);
  color: var(--ci-white);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.sector-card:hover .card-icon {
  background: linear-gradient(135deg, var(--sector-color, var(--ci-gold)) 0%, var(--ci-navy) 100%);
  transform: scale(1.05);
}

/* Sector-specific accent colors */
.sector-card[data-sector="central"] { --sector-color: #6366f1; }
.sector-card[data-sector="finance"] { --sector-color: #3aa1ff; }
.sector-card[data-sector="healthcare"] { --sector-color: #ff6b6b; }
.sector-card[data-sector="energy"] { --sector-color: #ffd93d; }
.sector-card[data-sector="industrial"] { --sector-color: #ff8c42; }
.sector-card[data-sector="transport"] { --sector-color: #6bcb77; }
.sector-card[data-sector="government"] { --sector-color: #9d4edd; }
.sector-card[data-sector="tech"] { --sector-color: #00d9ff; }

/* ============================================
   Hero Section (for pages without 3D)
   ============================================ */
.page-hero {
  background: linear-gradient(135deg, var(--ci-navy) 0%, var(--ci-navy-dark) 100%);
  color: var(--ci-white);
  padding: var(--space-16) 0 var(--space-12);
  margin-top: 90px;
}

.page-hero h1 {
  color: var(--ci-white);
  margin-bottom: var(--space-4);
}

.page-hero p {
  color: var(--ci-ice-blue);
  font-size: var(--font-size-lg);
  max-width: 600px;
}

.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--ci-gray-400);
  margin-bottom: var(--space-6);
}

.page-hero .breadcrumb a {
  color: var(--ci-ice-blue);
}

.page-hero .breadcrumb a:hover {
  color: var(--ci-gold);
}

/* ============================================
   Feature List
   ============================================ */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.feature-item {
  display: flex;
  gap: var(--space-4);
}

.feature-item-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: var(--ci-gold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ci-navy);
  font-size: 0.75rem;
}

.feature-item-content h4 {
  margin-bottom: var(--space-1);
}

.feature-item-content p {
  color: var(--ci-gray-600);
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

/* ============================================
   Stats Bar
   ============================================ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding: var(--space-8) 0;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--ci-gold);
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--ci-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   Timeline / Roadmap
   ============================================ */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--ci-ice-blue);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) + 4px);
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--ci-gold);
  border-radius: var(--radius-full);
  border: 3px solid var(--ci-white);
  box-shadow: var(--shadow-sm);
}

.timeline-phase {
  font-size: var(--font-size-sm);
  color: var(--ci-gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.timeline-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

.timeline-desc {
  color: var(--ci-gray-600);
  font-size: var(--font-size-sm);
}

/* ============================================
   Architecture Layers
   ============================================ */
.architecture-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.architecture-layer {
  display: flex;
  align-items: stretch;
  background: var(--ci-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}

.architecture-layer:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-lg);
}

.architecture-layer-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  background: var(--ci-navy);
  color: var(--ci-white);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.architecture-layer-content {
  flex: 1;
  padding: var(--space-4) var(--space-5);
}

.architecture-layer-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.architecture-layer-desc {
  font-size: var(--font-size-sm);
  color: var(--ci-gray-600);
  margin: 0;
}

.architecture-layer.active {
  border: 2px solid var(--ci-gold);
}

.architecture-layer.active .architecture-layer-number {
  background: var(--ci-gold);
  color: var(--ci-navy);
}

/* ============================================
   Pricing / Package Cards
   ============================================ */
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 900px) {
  .package-grid {
    grid-template-columns: 1fr;
  }
}

.package-card {
  background: var(--ci-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.package-card.featured {
  border: 2px solid var(--ci-gold);
}

.package-card.featured::before {
  content: 'Recommended';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ci-gold);
  color: var(--ci-navy);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
}

.package-name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.package-duration {
  font-size: var(--font-size-sm);
  color: var(--ci-gold);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.package-desc {
  font-size: var(--font-size-sm);
  color: var(--ci-gray-600);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--ci-gray-200);
}

.package-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.package-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
}

.package-feature::before {
  content: '✓';
  color: var(--ci-gold);
  font-weight: 700;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--ci-navy);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  border: 2px solid var(--ci-gray-200);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--ci-white);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--ci-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--ci-gray-500);
  margin-top: var(--space-1);
}

/* ============================================
   Footer
   ============================================ */
.ci-footer {
  background: var(--ci-navy-dark);
  color: var(--ci-white);
  padding: var(--space-12) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.footer-logo span {
  color: var(--ci-gold);
}

.footer-desc {
  font-size: var(--font-size-sm);
  color: var(--ci-gray-400);
  line-height: 1.7;
}

.footer-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  color: var(--ci-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--ci-gray-400);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--ci-gold);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--ci-gray-500);
}

@media (max-width: 600px) {
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* ============================================
   Credibility Bar
   ============================================ */
.credibility-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-6) 0;
  flex-wrap: wrap;
}

.credibility-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--ci-gray-600);
}

.credibility-item-icon {
  width: 40px;
  height: 40px;
  background: var(--ci-ice-blue-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--ci-navy) 0%, var(--ci-navy-dark) 100%);
  color: var(--ci-white);
  text-align: center;
  padding: var(--space-12) 0;
}

.cta-section h2 {
  color: var(--ci-white);
  margin-bottom: var(--space-4);
}

.cta-section p {
  color: var(--ci-ice-blue);
  max-width: 600px;
  margin: 0 auto var(--space-6);
}

.cta-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   Responsive Helpers
   ============================================ */
.hide-mobile {
  display: block;
}

.show-mobile {
  display: none;
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }

  .show-mobile {
    display: block;
  }

  h1 {
    font-size: 1.75rem;
    line-height: 1.2;
  }

  h2 {
    font-size: 1.5rem;
    line-height: 1.25;
  }

  h3 {
    font-size: 1.15rem;
  }

  .section {
    padding: var(--space-8) 0;
  }

  .container {
    padding: 0 var(--space-4);
  }

  /* Mobile navigation */
  .ci-nav {
    padding: var(--space-3) var(--space-4);
  }

  .ci-nav-logo {
    font-size: 1.4rem;
  }

  /* Page hero mobile */
  .page-hero {
    margin-top: 60px;
    padding: var(--space-6) 0;
  }

  .page-hero h1 {
    font-size: 1.6rem;
  }

  .page-hero p {
    font-size: 1rem;
  }

  .breadcrumb {
    font-size: 0.8rem;
    margin-bottom: var(--space-3);
  }

  /* Cards mobile */
  .card, .feature-card, .layer-card, .sector-card {
    padding: var(--space-5);
  }

  /* Buttons mobile */
  .btn {
    padding: var(--space-3) var(--space-5);
    font-size: 0.9rem;
  }

  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: 0.95rem;
  }

  /* Text utilities mobile */
  .text-lg {
    font-size: 1rem;
  }

  /* Footer mobile */
  .ci-footer {
    padding: var(--space-8) 0 var(--space-4);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: center;
  }

  .footer-brand {
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }

  /* Scroll margin mobile */
  [id] {
    scroll-margin-top: 80px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  .page-hero h1 {
    font-size: 1.4rem;
  }

  .section {
    padding: var(--space-6) 0;
  }
}

/* ============================================
   Scroll Margin for Anchors
   ============================================ */
[id] {
  scroll-margin-top: 110px;
}

/* ============================================
   Landing Page Hero (Index specific)
   ============================================ */
.landing-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: none;
}

.landing-hero > * {
  pointer-events: auto;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: var(--space-8);
  max-width: 800px;
  margin: 0 auto;
  margin-top: 80px;
}

.hero-badge {
  display: inline-block;
  background: rgba(212, 175, 55, 0.15);
  color: var(--ci-gold);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--ci-navy);
  margin-bottom: var(--space-4);
  line-height: 1.1;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: var(--font-size-2xl);
  }
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--ci-gray-600);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Content that scrolls over 3D */
.content-overlay {
  position: relative;
  z-index: 20;
  background: var(--ci-white);
}

/* Smooth transition from 3D to content */
.content-overlay::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to bottom, transparent, var(--ci-white));
  pointer-events: none;
}

/* ============================================
   Dark Theme Hero Panel (Index Page)
   ============================================ */
.hero-panel-dark {
  background: rgba(10, 15, 26, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  color: var(--ci-white);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 0 60px rgba(99, 102, 241, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.hero-panel-dark h1 {
  color: var(--ci-white);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-panel-dark p {
  color: rgba(202, 220, 252, 0.9);
}

.hero-panel-dark .hero-badge {
  background: rgba(212, 175, 55, 0.2);
  border-color: rgba(212, 175, 55, 0.4);
}

/* Dark Section Variant */
.section-dark {
  background: linear-gradient(180deg, #0a0f1a 0%, #141a2e 100%);
  color: var(--ci-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--ci-white);
}

.section-dark p {
  color: rgba(202, 220, 252, 0.8);
}

/* Dark Card Variant - PROPER CONTRAST */
.card-dark,
body.dark-theme .card {
  background: rgba(30, 41, 59, 0.9) !important;
  border: 1px solid rgba(99, 102, 241, 0.3);
  backdrop-filter: blur(8px);
  color: var(--dark-text-secondary) !important;
}

.card-dark:hover,
body.dark-theme .card:hover {
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), 0 0 20px rgba(99, 102, 241, 0.15);
}

.card-dark .card-title,
body.dark-theme .card .card-title,
body.dark-theme .card h3,
body.dark-theme .card h4 {
  color: var(--dark-text-primary) !important;
}

.card-dark .card-text,
body.dark-theme .card .card-text,
body.dark-theme .card p {
  color: var(--dark-text-secondary) !important;
}

.card-dark .card-icon,
body.dark-theme .card .card-icon {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3) 0%, rgba(30, 39, 97, 0.5) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--dark-text-primary);
}

/* ============================================
   Blockchain Tooltip Styles
   ============================================ */
.blockchain-tooltip {
  position: fixed;
  padding: 12px 16px;
  background: rgba(10, 15, 26, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(99, 102, 241, 0.4);
  border-radius: var(--radius-md);
  color: var(--ci-white);
  font-size: var(--font-size-sm);
  pointer-events: none;
  z-index: 999;
  opacity: 0;
  transition: opacity 0.2s ease;
  max-width: 280px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.blockchain-tooltip.visible {
  opacity: 1;
}

.blockchain-tooltip h4 {
  color: var(--ci-gold);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 4px;
}

.blockchain-tooltip p {
  margin: 0;
  color: rgba(202, 220, 252, 0.9);
  font-size: 13px;
  line-height: 1.5;
}

/* ============================================
   Glow Effects
   ============================================ */
.glow-gold {
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
}

.glow-purple {
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.text-glow {
  text-shadow: 0 0 20px currentColor;
}

/* ============================================
   COMPREHENSIVE DARK THEME
   For consistent styling across all pages
   ============================================ */

/* Dark theme body - LIGHT TEXT ON DARK BACKGROUND */
body.dark-theme {
  background: var(--dark-bg-primary);
  color: var(--dark-text-secondary) !important;
}

body.dark-theme h1,
body.dark-theme h2,
body.dark-theme h3,
body.dark-theme h4,
body.dark-theme h5,
body.dark-theme h6 {
  color: var(--dark-text-primary) !important;
}

body.dark-theme p {
  color: var(--dark-text-secondary) !important;
}

body.dark-theme a {
  color: var(--dark-text-secondary);
}

body.dark-theme a:hover {
  color: var(--ci-gold);
}

/* Nav links must be visible on dark background */
body.dark-theme .ci-nav a,
body.dark-theme nav a {
  color: var(--dark-text-primary) !important;
}

body.dark-theme .ci-nav a:hover,
body.dark-theme nav a:hover {
  color: var(--ci-gold) !important;
}

/* Tags / Pills / Badges */
.tag,
.pill,
.badge-sm,
.phase-tag {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

/* Dark footer - consistent across all pages */
.ci-footer {
  background: var(--dark-bg-tertiary) !important;
  border-top: 1px solid var(--dark-border);
  color: var(--dark-text-muted);
}

.ci-footer a {
  color: var(--dark-text-secondary);
}

.ci-footer a:hover {
  color: var(--ci-gold);
}

.ci-footer h4,
.ci-footer .footer-title {
  color: var(--dark-text-primary);
}

.ci-footer .footer-logo {
  color: var(--dark-text-primary);
}

.ci-footer .footer-desc {
  color: var(--dark-text-muted);
}

/* Dark architecture layer styling */
.architecture-layer {
  background: var(--dark-bg-card);
  border: 1px solid var(--dark-border);
  color: var(--dark-text-secondary);
}

.architecture-layer.active {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--dark-border-hover);
}

.architecture-layer-title {
  color: var(--dark-text-primary) !important;
}

.architecture-layer-desc {
  color: var(--dark-text-muted) !important;
}

.architecture-layer-number {
  color: var(--ci-gold);
}

/* Credibility bar dark theme */
.credibility-bar {
  background: transparent;
}

.credibility-item {
  color: var(--dark-text-secondary);
}

.credibility-item strong {
  color: var(--dark-text-primary);
}

.credibility-item-icon {
  color: var(--ci-gold);
}

/* CTA section dark theme */
.cta-section {
  background: linear-gradient(135deg, #1e2761, var(--dark-bg-primary)) !important;
}

/* CTA buttons - ensure visibility on dark gradient */
.cta-section .btn-white {
  background: #ffffff !important;
  color: #1e2761 !important;
  border-color: #ffffff !important;
  font-weight: 600;
}

.cta-section .btn-white:hover {
  background: #f1f5f9 !important;
  border-color: #f1f5f9 !important;
  color: #1e2761 !important;
}

.cta-section .btn-outline-white {
  background: transparent !important;
  color: #ffffff !important;
  border: 2px solid #ffffff !important;
}

.cta-section .btn-outline-white:hover {
  background: #ffffff !important;
  color: #1e2761 !important;
}

/* Form inputs dark theme */
.form-control,
.form-input,
input[type="text"],
input[type="email"],
textarea,
select {
  background: var(--dark-bg-secondary);
  border: 1px solid var(--dark-border);
  color: var(--dark-text-secondary);
}

.form-control:focus,
.form-input:focus,
input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
  border-color: var(--dark-accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

::placeholder {
  color: var(--dark-text-muted);
}

/* Tables dark theme */
table {
  background: var(--dark-bg-card);
  border: 1px solid var(--dark-border);
}

th {
  background: var(--dark-bg-secondary);
  color: var(--dark-text-primary);
  border-bottom: 1px solid var(--dark-border);
}

td {
  border-bottom: 1px solid var(--dark-border);
  color: var(--dark-text-secondary);
}

tr:hover {
  background: rgba(99, 102, 241, 0.05);
}

/* Lists dark theme */
ul li::marker {
  color: var(--ci-gold);
}

/* Blockquote dark theme */
blockquote {
  border-left: 4px solid var(--ci-gold);
  background: var(--dark-bg-card);
  padding: var(--space-4);
  color: var(--dark-text-secondary);
}

/* Dividers dark theme */
hr {
  border: none;
  border-top: 1px solid var(--dark-border);
}

/* Flagship Demos Grid */
.ci-demos-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .ci-demos-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.ci-demo-card {
  position: relative;
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.ci-demo-card-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.ci-demo-card:hover {
  transform: translateY(-4px);
  border-color: #D4AF37;
}

.ci-demo-media {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: rgb(15, 23, 42);
}

.ci-demo-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ci-demo-card h3 {
  color: #D4AF37;
  font-size: 20px;
  margin: 20px 24px 8px;
}

.ci-demo-card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 24px 16px;
}

.ci-demo-cta {
  display: inline-block;
  position: relative;
  z-index: 2;
  color: #D4AF37;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  margin: 0 24px 24px;
  transition: color 0.2s;
}

.ci-demo-cta:hover {
  color: #fff;
}

/* ============================================
   Demos Page Styles
   ============================================ */

/* Demo Nav Anchors */
.demos-nav {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.demos-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #e2e8f0;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.demos-nav-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.demos-nav-btn .nav-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* Featured Demo (Atlas) */
.demo-featured {
  padding: var(--space-12) 0 var(--space-10);
}

.demo-featured-embed {
  width: 100%;
  border: 1px solid rgba(0, 217, 255, 0.25);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: rgb(10, 15, 26);
  box-shadow: 0 0 40px rgba(0, 217, 255, 0.08), 0 8px 32px rgba(0, 0, 0, 0.4);
}

.demo-featured-embed iframe {
  width: 100%;
  height: 650px;
  border: none;
  display: block;
}

.demo-detail-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  margin-top: var(--space-6);
  padding: var(--space-5) var(--space-6);
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}

.demo-detail-bar-text h3 {
  color: #f8fafc;
  font-size: var(--font-size-lg);
  margin: 0 0 4px;
}

.demo-detail-bar-text p {
  color: var(--dark-text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Stat Pills */
.demo-stats {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.demo-stat {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.demo-stat--atlas {
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid rgba(0, 217, 255, 0.3);
  color: #67e8f9;
}

.demo-stat--sentinel {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}

.demo-stat--ops {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
}

.demo-stat--compliance {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

/* Video Toggle (collapsible walkthrough) */
.demo-video-toggle {
  margin-top: var(--space-5);
}

.demo-video-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  background: none;
  border: none;
  color: var(--dark-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s;
}

.demo-video-toggle-btn:hover {
  color: #f8fafc;
}

.demo-video-toggle-btn svg {
  transition: transform 0.3s ease;
}

.demo-video-toggle-btn.active svg {
  transform: rotate(180deg);
}

.demo-video-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, margin 0.4s ease;
  margin-top: 0;
}

.demo-video-content.open {
  max-height: 800px;
  margin-top: var(--space-5);
}

.demo-video-content video {
  width: 100%;
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

/* Standard Demo Sections */
.demo-section {
  padding: var(--space-12) 0;
  border-top: 1px solid rgba(99, 102, 241, 0.1);
}

.demo-section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.demo-section--reverse .demo-section-inner {
  direction: rtl;
}

.demo-section--reverse .demo-section-inner > * {
  direction: ltr;
}

/* Demo Media Column */
.demo-media {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.demo-media video {
  width: 100%;
  display: block;
}

.demo-media--sentinel {
  border: 1px solid rgba(245, 158, 11, 0.25);
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.06);
}

.demo-media--ops {
  border: 1px solid rgba(99, 102, 241, 0.25);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.06);
}

.demo-media--compliance {
  border: 1px solid rgba(16, 185, 129, 0.25);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.06);
}

/* Demo Info Column */
.demo-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.demo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  width: fit-content;
}

.demo-badge--sentinel {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fbbf24;
}

.demo-badge--ops {
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.35);
  color: #a5b4fc;
}

.demo-badge--compliance {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
}

.demo-info h3 {
  color: #f8fafc;
  font-size: var(--font-size-xl);
  margin: 0;
  line-height: 1.2;
}

.demo-info p {
  color: var(--dark-text-muted);
  line-height: 1.7;
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Capability Pills */
.demo-capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.demo-capability {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
}

.demo-capability--sentinel {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: #fcd34d;
}

.demo-capability--ops {
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: #c7d2fe;
}

.demo-capability--compliance {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: #6ee7b7;
}

/* Data Sources */
.demo-sources {
  font-size: 11px;
  color: var(--dark-text-muted);
  letter-spacing: 0.3px;
  opacity: 0.7;
}

/* Module Grid (Ops Center) */
.demo-modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.demo-module {
  padding: 10px 12px;
  background: rgba(99, 102, 241, 0.06);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  color: #e2e8f0;
  text-align: center;
}

/* Mode Cards */
.demo-modes {
  display: flex;
  gap: var(--space-3);
}

.demo-mode {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
}

.demo-mode-label {
  font-size: 13px;
  font-weight: 600;
  color: #a5b4fc;
  margin-bottom: 2px;
}

.demo-mode-desc {
  font-size: 11px;
  color: var(--dark-text-muted);
  margin: 0;
}

/* Demo Actions */
.demo-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Convergence Section */
.demo-convergence {
  padding: var(--space-12) 0;
  text-align: center;
}

.demo-convergence h2 {
  color: #f8fafc;
  margin-bottom: var(--space-3);
}

.demo-convergence > .container > p {
  color: var(--dark-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

.demo-convergence-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  position: relative;
}

.demo-convergence-card {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.demo-convergence-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.demo-convergence-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  font-size: 22px;
}

.demo-convergence-card-icon--atlas {
  background: rgba(0, 217, 255, 0.12);
  border: 1px solid rgba(0, 217, 255, 0.25);
}

.demo-convergence-card-icon--sentinel {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.demo-convergence-card-icon--ops {
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.demo-convergence-card-icon--compliance {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.demo-convergence-card h4 {
  color: #f8fafc;
  font-size: var(--font-size-base);
  margin-bottom: var(--space-2);
}

.demo-convergence-card p {
  color: var(--dark-text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  margin: 0;
}

/* Connector lines between convergence cards */
.demo-convergence-cards::before,
.demo-convergence-cards::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(33.33% - var(--space-5));
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 217, 255, 0.3), rgba(99, 102, 241, 0.3));
  z-index: 0;
}

.demo-convergence-cards::before {
  left: calc(16.66% + var(--space-5) / 2);
}

.demo-convergence-cards::after {
  right: calc(16.66% + var(--space-5) / 2);
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.3), rgba(99, 102, 241, 0.3));
}

/* Responsive */
@media (max-width: 900px) {
  .demo-section-inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .demo-section--reverse .demo-section-inner {
    direction: ltr;
  }
  .demo-featured-embed iframe {
    height: 450px;
  }
  .demo-detail-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }
  .demo-convergence-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
  .demo-convergence-cards::before,
  .demo-convergence-cards::after {
    display: none;
  }
  .demo-modules {
    grid-template-columns: repeat(2, 1fr);
  }
  .demo-modes {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .demos-nav {
    flex-direction: column;
  }
  .demo-featured-embed iframe {
    height: 300px;
  }
  .demo-modules {
    grid-template-columns: 1fr 1fr;
  }
}