/* ============================================
   AITher — AsistentesIA Landing Page
   Design System & Styles
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors — Dark Premium Palette */
  --color-bg-primary: #0a0a1a;
  --color-bg-secondary: #0f0f2e;
  --color-bg-card: rgba(255, 255, 255, 0.04);
  --color-bg-card-hover: rgba(255, 255, 255, 0.07);
  --color-bg-glass: rgba(255, 255, 255, 0.06);
  --color-border-glass: rgba(255, 255, 255, 0.1);
  --color-border-glass-hover: rgba(255, 255, 255, 0.2);

  --color-text-primary: #f0f0f5;
  --color-text-secondary: #a0a0c0;
  --color-text-muted: #6b6b8d;

  --color-accent-cyan: #00d4ff;
  --color-accent-violet: #8b5cf6;
  --color-accent-pink: #ec4899;
  --color-accent-emerald: #10b981;
  --color-accent-amber: #f59e0b;

  --gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #1a0a3e 40%, #0a1a3e 70%, #0a0a1a 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-violet));
  --gradient-accent-warm: linear-gradient(135deg, var(--color-accent-violet), var(--color-accent-pink));
  --gradient-glow-cyan: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
  --gradient-glow-violet: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.15) 0%, transparent 70%);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 40px rgba(0, 212, 255, 0.2);
  --shadow-glow-violet: 0 0 40px rgba(139, 92, 246, 0.2);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: var(--text-6xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

/* --- Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

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

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

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent-cyan);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section-tag svg {
  width: 16px;
  height: 16px;
}

.section-title {
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  line-height: 1.8;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .section-subtitle {
  margin: 0 auto;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-base), border-color var(--transition-base),
              backdrop-filter var(--transition-base);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--color-border-glass);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  margin: 5px 0;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero-bg-effects {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 12s ease-in-out infinite;
}

.hero-orb--cyan {
  width: 500px;
  height: 500px;
  background: rgba(0, 212, 255, 0.15);
  top: 10%;
  right: -10%;
  animation-delay: 0s;
}

.hero-orb--violet {
  width: 600px;
  height: 600px;
  background: rgba(139, 92, 246, 0.12);
  bottom: -15%;
  left: -15%;
  animation-delay: -4s;
}

.hero-orb--pink {
  width: 350px;
  height: 350px;
  background: rgba(236, 72, 153, 0.1);
  top: 50%;
  left: 40%;
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: var(--space-3xl) var(--space-xl);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent-cyan);
  margin-bottom: var(--space-2xl);
  animation: fadeInDown 0.8s ease forwards;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent-emerald);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-size: clamp(var(--text-4xl), 6vw, var(--text-7xl));
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero-subtitle {
  font-size: clamp(var(--text-base), 2vw, var(--text-xl));
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 700px;
  margin: 0 auto var(--space-2xl);
  animation: fadeInUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  animation: fadeInUp 0.8s ease 0.6s forwards;
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
}

.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-glass);
}

.btn-outline:hover {
  background: var(--color-bg-glass);
  border-color: var(--color-border-glass-hover);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  margin-top: var(--space-4xl);
  animation: fadeInUp 0.8s ease 0.8s forwards;
  opacity: 0;
}

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

.hero-stat-value {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ============================================
   DUAL SYSTEM SECTION (Resumen Ejecutivo)
   ============================================ */
.dual-system {
  padding: var(--space-5xl) 0;
  position: relative;
}

.dual-system::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: var(--gradient-glow-violet);
  pointer-events: none;
}

.dual-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  position: relative;
}

.dual-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  overflow: hidden;
}

.dual-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.dual-card--ventas::before {
  background: var(--gradient-accent);
}

.dual-card--ejecutivo::before {
  background: var(--gradient-accent-warm);
}

.dual-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-glass-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.dual-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
}

.dual-card--ventas .dual-card-icon {
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.dual-card--ejecutivo .dual-card-icon {
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.dual-card h3 {
  margin-bottom: var(--space-md);
  font-size: var(--text-2xl);
}

.dual-card p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.dual-card-features {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.dual-card-feature {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.dual-card-feature .check-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  flex-shrink: 0;
}

.dual-card--ventas .check-icon {
  background: rgba(0, 212, 255, 0.15);
  color: var(--color-accent-cyan);
}

.dual-card--ejecutivo .check-icon {
  background: rgba(139, 92, 246, 0.15);
  color: var(--color-accent-violet);
}

/* ============================================
   ARCHITECTURE SECTION
   ============================================ */
.architecture {
  padding: var(--space-5xl) 0;
  position: relative;
}

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
  margin-top: var(--space-2xl);
}

.arch-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
  min-width: 180px;
}

.arch-node:hover {
  border-color: var(--color-border-glass-hover);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.arch-node-icon {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-sm);
}

.arch-node-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-base);
}

.arch-node-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.arch-arrow {
  font-size: var(--text-2xl);
  color: var(--color-accent-cyan);
  animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {
  0%, 100% { opacity: 0.5; transform: translateX(0); }
  50% { opacity: 1; transform: translateX(5px); }
}

.arch-branch {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.arch-node--highlight-cyan {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: var(--shadow-glow-cyan);
}

.arch-node--highlight-violet {
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: var(--shadow-glow-violet);
}

/* ============================================
   COMPONENTS SECTION
   ============================================ */
.components {
  padding: var(--space-5xl) 0;
  position: relative;
}

.components::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: var(--gradient-glow-cyan);
  pointer-events: none;
}

.components-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.component-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  overflow: hidden;
}

.component-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.02) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.component-card:hover {
  border-color: var(--color-border-glass-hover);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.component-card:hover::after {
  opacity: 1;
}

.component-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  margin-bottom: var(--space-lg);
}

.component-icon--cyan {
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
}
.component-icon--violet {
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
}
.component-icon--pink {
  background: rgba(236, 72, 153, 0.1);
  border: 1px solid rgba(236, 72, 153, 0.2);
}
.component-icon--emerald {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.component-icon--amber {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.component-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.component-card .component-tech {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  font-style: italic;
}

.component-card p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.8;
}

.component-benefit {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-glass);
}

.component-benefit-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-cyan);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.component-benefit p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   GALLERY / SCREENSHOTS SECTION
   ============================================ */
.gallery {
  padding: var(--space-5xl) 0;
  position: relative;
  overflow: hidden;
}

.gallery-carousel {
  position: relative;
  margin: 0 auto;
  max-width: 1100px;
}

.gallery-track {
  display: flex;
  gap: var(--space-xl);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.gallery-slide {
  min-width: 100%;
  flex-shrink: 0;
}

.gallery-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  box-shadow: var(--shadow-card);
}

.gallery-frame-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--color-border-glass);
}

.gallery-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.gallery-dot--red { background: #ff5f57; }
.gallery-dot--yellow { background: #ffbd2e; }
.gallery-dot--green { background: #28c840; }

.gallery-frame-title {
  margin-left: var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-family: var(--font-heading);
}

.gallery-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.gallery-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.gallery-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  color: var(--color-text-primary);
  font-size: var(--text-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.gallery-btn:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.gallery-dots {
  display: flex;
  gap: var(--space-sm);
}

.gallery-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border-glass);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  padding: 0;
}

.gallery-indicator.active {
  background: var(--color-accent-cyan);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
  width: 30px;
  border-radius: 5px;
}

.gallery-caption {
  text-align: center;
  margin-top: var(--space-lg);
}

.gallery-caption h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
}

.gallery-caption p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ============================================
   INFRASTRUCTURE SECTION
   ============================================ */
.infrastructure {
  padding: var(--space-5xl) 0;
  position: relative;
}

.infra-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.infra-card {
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.infra-card:hover {
  border-color: var(--color-border-glass-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.infra-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-lg);
}

.infra-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

.infra-card p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.8;
}

.infra-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-accent-emerald);
  font-weight: 600;
  margin-top: var(--space-lg);
}

/* ============================================
   DIFFERENTIATORS SECTION
   ============================================ */
.differentiators {
  padding: var(--space-5xl) 0;
  position: relative;
}

.differentiators::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: var(--gradient-glow-violet);
  pointer-events: none;
}

.diff-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  position: relative;
}

.diff-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2xl);
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.diff-item:hover {
  border-color: var(--color-border-glass-hover);
  transform: translateX(8px);
  box-shadow: var(--shadow-card);
}

.diff-number {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: var(--radius-md);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: white;
}

.diff-content h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.diff-content p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ============================================
   CTA / CONTACT SECTION
   ============================================ */
.cta-section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.cta-box {
  text-align: center;
  padding: var(--space-4xl) var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-accent);
  border-radius: var(--radius-xl);
  z-index: -1;
  opacity: 0.15;
}

.cta-box h2 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-lg);
}

.cta-box p {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border-glass);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 600;
}

.footer-brand .logo-icon {
  width: 28px;
  height: 28px;
  font-size: var(--text-sm);
}

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

.footer-links {
  display: flex;
  gap: var(--space-xl);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent-cyan);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  h1 { font-size: var(--text-5xl); }
  h2 { font-size: var(--text-3xl); }

  .infra-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  .nav-links {
    display: none;
  }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 26, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-2xl);
    gap: var(--space-xl);
    z-index: 999;
    align-items: center;
    justify-content: center;
  }

  .nav-links.mobile-open a {
    font-size: var(--text-xl);
  }

  .mobile-menu-toggle {
    display: block;
  }

  .dual-cards {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .hero-cta-group {
    flex-direction: column;
  }

  .arch-flow {
    flex-direction: column;
  }

  .arch-arrow {
    transform: rotate(90deg);
  }

  .components-grid {
    grid-template-columns: 1fr;
  }

  .diff-item {
    flex-direction: column;
    gap: var(--space-lg);
  }

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

  .gallery-btn {
    width: 40px;
    height: 40px;
    font-size: var(--text-base);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-lg);
  }

  .hero-content {
    padding: var(--space-2xl) var(--space-md);
  }

  .cta-box {
    padding: var(--space-2xl) var(--space-lg);
  }
}