/* ============================================================
   Tek4TV Corporate Website - Design System & Styles
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- CSS Variables (Design Tokens) ---------- */
:root {
  /* Colors — Tek4TV Brand Palette */
  --bg-primary: #0A0F1A;
  --bg-secondary: #0E1525;
  --bg-card: #121A2E;
  --bg-card-hover: #182238;
  --bg-footer: #060A12;

  --accent-cyan: #3B97D3;
  --accent-teal: #E54A1A;
  --accent-cyan-dim: rgba(59, 151, 211, 0.15);
  --accent-teal-dim: rgba(229, 74, 26, 0.15);
  --accent-gradient: linear-gradient(135deg, #3B97D3, #64AED9);

  --text-primary: #FFFFFF;
  --text-secondary: #E0E0E0;
  --text-muted: #9E9E9E;
  --text-dark: #121212;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(59, 151, 211, 0.4);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --section-padding: 120px 0;
  --container-width: 1280px;
  --container-padding: 0 40px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 12px 48px rgba(59, 151, 211, 0.12);
  --shadow-glow: 0 0 20px rgba(59, 151, 211, 0.3);
  --shadow-glow-strong: 0 0 40px rgba(59, 151, 211, 0.4);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

button, input, textarea {
  font-family: var(--font-primary);
  border: none;
  outline: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* Prevent horizontal scroll on mobile */
section,
.hero,
.footer {
  overflow-x: hidden;
  max-width: 100vw;
}

/* ---------- Typography ---------- */
.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  display: inline-block;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.8;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  padding: 4px 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #FFFFFF;
  box-shadow: 0 0 0 rgba(59, 151, 211, 0);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
  background: linear-gradient(135deg, #4AA3DF, #6DB9E5);
}

.btn-outline {
  background: transparent;
  color: var(--accent-cyan);
  border: 1.5px solid var(--accent-cyan);
}

.btn-outline:hover {
  background: var(--accent-cyan-dim);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--text-primary);
  color: var(--text-dark);
}

.btn-white:hover {
  background: #F0F0F0;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-children.active > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-children.active > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-children.active > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-children.active > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-children.active > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-children.active > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-children.active > * {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================================
   HEADER & NAVIGATION
   ============================================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 0;
  transition: all var(--transition-smooth);
}

.header.scrolled {
  background: rgba(10, 15, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  z-index: 1001;
}

/* Logo Image */
.logo-img {
  height: 36px;
  width: auto;
  display: block;
  transition: opacity var(--transition-fast);
}

.logo:hover .logo-img {
  opacity: 0.85;
}

.logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 8px;
}

.logo .logo-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--text-dark);
}

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

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: width var(--transition-base);
  border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 60%;
}

/* Nav dropdown */
.nav-item {
  position: relative;
}

.nav-item > .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.nav-item .dropdown-arrow {
  font-size: 0.7rem;
  transition: transform var(--transition-fast);
}

.nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 680px;
  background: rgba(14, 21, 37, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}

.nav-item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.mega-menu-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  cursor: pointer;
}

.mega-menu-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.mega-menu-item .mm-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 8px;
  background: var(--accent-cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mega-menu-item .mm-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.mega-menu-item .mm-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.mega-menu-item .mm-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Header Right */
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1001;
}

.search-btn,
.lang-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  color: var(--text-secondary);
}

.search-btn:hover,
.lang-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.search-btn svg,
.lang-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.lang-btn {
  font-size: 0.75rem;
  font-weight: 700;
  width: auto;
  padding: 0 14px;
  border-radius: 20px;
}

.header-cta {
  padding: 10px 24px;
  font-size: 0.85rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* =============================================================
   HERO SECTION
   ============================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg video,
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 15, 26, 0.4) 0%,
    rgba(10, 15, 26, 0.7) 50%,
    rgba(10, 15, 26, 1) 100%
  );
  z-index: 1;
}

/* Animated grid pattern */
.hero-pattern {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.06;
  background-image:
    linear-gradient(rgba(59, 151, 211, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 151, 211, 0.3) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(59, 151, 211, 0.08);
  border: 1px solid rgba(59, 151, 211, 0.2);
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-bottom: 32px;
  backdrop-filter: blur(8px);
}

.hero-badge .badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse 2s ease-in-out infinite;
}

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

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 24px;
  letter-spacing: -1px;
  overflow: visible;
  padding-top: 4px;
}

.hero p {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Floating stats at bottom of hero */
.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 48px;
  margin-top: 56px;
  justify-content: center;
}

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

.hero-stat .stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  display: block;
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* =============================================================
   SERVICES SECTION
   ============================================================= */
.services {
  padding: var(--section-padding);
  background: var(--bg-primary);
  position: relative;
}

.services-header {
  text-align: center;
  margin-bottom: 72px;
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  transition: all var(--transition-smooth);
  overflow: hidden;
  cursor: pointer;
}

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

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
  background: var(--bg-card-hover);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--accent-cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: var(--accent-gradient);
  box-shadow: var(--shadow-glow);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke var(--transition-base);
}

.service-card:hover .service-icon svg {
  stroke: var(--text-dark);
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.service-card .card-arrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-top: 24px;
  opacity: 0;
  transform: translateX(-10px);
  transition: all var(--transition-base);
}

.service-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

.card-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 2;
}

/* =============================================================
   FEATURED PRODUCTS SECTION
   ============================================================= */
.featured-products {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  position: relative;
}

/* Glow decoration */
.featured-products::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.06), transparent 70%);
  pointer-events: none;
}

.featured-header {
  margin-bottom: 64px;
}

.featured-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
}

/* AI Card - Large */
.featured-card-large {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.featured-card-large:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
}

.featured-card-large .ai-visual {
  width: 100%;
  height: 240px;
  background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.12), transparent 70%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.ai-brain {
  position: relative;
  width: 120px;
  height: 120px;
}

.ai-brain .brain-core {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent-gradient);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: brainPulse 3s ease-in-out infinite;
  box-shadow: var(--shadow-glow-strong);
}

@keyframes brainPulse {
  0%, 100% { box-shadow: 0 0 30px rgba(0, 229, 255, 0.4); }
  50% { box-shadow: 0 0 60px rgba(0, 229, 255, 0.6); }
}

.ai-brain .orbit {
  position: absolute;
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: orbitSpin 12s linear infinite;
}

.ai-brain .orbit:nth-child(2) {
  width: 140px;
  height: 140px;
  animation-duration: 10s;
}

.ai-brain .orbit:nth-child(3) {
  width: 190px;
  height: 190px;
  animation-duration: 15s;
  animation-direction: reverse;
}

.ai-brain .orbit:nth-child(4) {
  width: 240px;
  height: 240px;
  animation-duration: 20s;
}

.ai-brain .orbit-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--accent-cyan);
}

@keyframes orbitSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.featured-card-large .card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--accent-cyan-dim);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  width: fit-content;
}

.featured-card-large h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.featured-card-large > p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.8;
}

.ai-modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 32px;
}

.ai-module {
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
  transition: all var(--transition-fast);
}

.ai-module:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
}

/* Small featured cards */
.featured-cards-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.featured-card-sm {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all var(--transition-smooth);
  flex: 1;
}

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

.featured-card-sm .sm-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.featured-card-sm .sm-icon svg {
  width: 24px;
  height: 24px;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.featured-card-sm:nth-child(1) .sm-icon {
  background: rgba(59, 151, 211, 0.12);
}

.featured-card-sm:nth-child(1) .sm-icon svg {
  stroke: var(--accent-cyan);
}

.featured-card-sm:nth-child(2) .sm-icon {
  background: rgba(255, 171, 0, 0.12);
}

.featured-card-sm:nth-child(2) .sm-icon svg {
  stroke: #FFAB00;
}

.featured-card-sm h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.featured-card-sm p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.featured-card-sm .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-top: 20px;
  transition: gap var(--transition-fast);
}

.featured-card-sm:hover .learn-more {
  gap: 10px;
}

.learn-more svg {
  width: 16px;
  height: 16px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 2;
}

/* =============================================================
   PRODUCT ECOSYSTEM
   ============================================================= */
.ecosystem {
  padding: var(--section-padding);
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.ecosystem-header {
  text-align: center;
  margin-bottom: 80px;
}

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

.ecosystem-map {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  aspect-ratio: 16/10;
}

/* Center node */
.eco-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow-strong);
  z-index: 10;
  animation: centerPulse 4s ease-in-out infinite;
  cursor: pointer;
}

@keyframes centerPulse {
  0%, 100% { box-shadow: 0 0 40px rgba(0, 229, 255, 0.3); }
  50% { box-shadow: 0 0 80px rgba(0, 229, 255, 0.5); }
}

.eco-center .center-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(0, 0, 0, 0.6);
  margin-bottom: 4px;
}

.eco-center .center-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-dark);
}

/* Orbit rings */
.eco-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px dashed rgba(0, 229, 255, 0.12);
}

.eco-ring-1 { width: 320px; height: 320px; }
.eco-ring-2 { width: 500px; height: 500px; }
.eco-ring-3 { width: 680px; height: 680px; }

/* Satellite nodes */
.eco-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 5;
}

.eco-node:hover {
  transform: scale(1.1);
}

.eco-node:hover .node-circle {
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-cyan);
}

.node-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.node-circle svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.eco-node .node-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
}

/* Connection lines */
.eco-connections {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.eco-connections line {
  stroke: rgba(0, 229, 255, 0.15);
  stroke-width: 1;
  stroke-dasharray: 6 4;
}

/* Popup */
.eco-popup {
  position: fixed;
  background: rgba(30, 30, 30, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  padding: 24px;
  min-width: 300px;
  max-width: 380px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  pointer-events: none;
}

.eco-popup.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.eco-popup h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.eco-popup p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.eco-popup .popup-btn {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.eco-popup .popup-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.eco-popup .popup-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

/* =============================================================
   PARTNERS SECTION
   ============================================================= */
.partners {
  padding: 80px 0;
  background: var(--bg-secondary);
  overflow: hidden;
}

.partners-header {
  text-align: center;
  margin-bottom: 56px;
}

.partners-track-wrapper {
  position: relative;
  overflow: hidden;
}

.partners-track-wrapper::before,
.partners-track-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  z-index: 2;
  pointer-events: none;
}

.partners-track-wrapper::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-secondary), transparent);
}

.partners-track-wrapper::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-secondary), transparent);
}

.partners-track {
  display: flex;
  gap: 60px;
  animation: scroll 30s linear infinite;
  width: max-content;
}

@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.partner-logo {
  height: 48px;
  opacity: 0.35;
  filter: grayscale(1) brightness(1.6);
  transition: all var(--transition-base);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-muted);
  min-width: 120px;
  padding: 8px 24px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.partner-logo:hover {
  opacity: 1;
  filter: grayscale(0) brightness(1);
  color: var(--accent-cyan);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

/* =============================================================
   CONTACT / VALUE SECTION
   ============================================================= */
.contact-section {
  padding: var(--section-padding);
  background: var(--bg-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.contact-info {
  padding-right: 40px;
}

.contact-info .section-title {
  margin-bottom: 40px;
}

.value-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.value-item:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.value-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  background: var(--accent-cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.value-item h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.value-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Contact Form */
.contact-form-wrapper {
  background: linear-gradient(145deg, rgba(0, 191, 165, 0.15), rgba(0, 229, 255, 0.08));
  border: 1px solid rgba(0, 229, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

.contact-form-wrapper::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.1), transparent 70%);
  pointer-events: none;
}

.contact-form-wrapper h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.contact-form-wrapper > p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-submit {
  margin-top: 8px;
}

/* =============================================================
   FOOTER
   ============================================================= */
.footer {
  background: var(--bg-footer);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand .logo {
  margin-bottom: 20px;
}

.footer-brand .footer-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 360px;
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-contact-info li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-contact-info li svg {
  width: 16px;
  height: 16px;
  min-width: 16px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-links h4,
.footer-newsletter h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-newsletter p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.85rem;
}

.newsletter-form input::placeholder {
  color: var(--text-muted);
}

.newsletter-form input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.newsletter-form button {
  padding: 12px 20px;
  background: var(--accent-cyan);
  color: var(--text-dark);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: #33EBFF;
  box-shadow: var(--shadow-glow);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* =============================================================
   PRODUCT CATALOG SECTION
   ============================================================= */
.product-catalog {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

.catalog-header {
  text-align: center;
  margin-bottom: 48px;
}

.catalog-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 10px 22px;
  border: 1px solid var(--border-color);
  border-radius: 40px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.filter-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.filter-btn.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: var(--text-dark);
  font-weight: 600;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.catalog-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.catalog-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 0;
}

.catalog-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(59, 151, 211, 0.12);
}

.catalog-card:hover::before {
  opacity: 0.04;
}

.catalog-card > * {
  position: relative;
  z-index: 1;
}

.catalog-number {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(59, 151, 211, 0.15), rgba(100, 174, 217, 0.08));
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.catalog-info {
  flex: 1;
  min-width: 0;
}

.catalog-info h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catalog-info p {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catalog-download {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: transparent;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  opacity: 0.35;
}

.catalog-download svg {
  width: 16px;
  height: 16px;
  stroke: var(--accent-cyan);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.catalog-card:hover .catalog-download {
  opacity: 1;
  background: rgba(59, 151, 211, 0.1);
  transform: translateY(2px);
}

.catalog-card.hidden {
  display: none;
}

/* =============================================================
   RESPONSIVE
   ============================================================= */
/* =============================================================
   RESPONSIVE — Tablet (≤1024px)
   ============================================================= */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px 0;
    --container-padding: 0 24px;
  }

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

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

  .featured-card-large {
    grid-row: auto;
  }

  .featured-cards-right {
    flex-direction: row;
  }

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

  .contact-info {
    padding-right: 0;
  }

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

  .eco-ring-3 { display: none; }
  .eco-node[data-ring="3"] { display: none; }

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

/* =============================================================
   RESPONSIVE — Mobile (≤768px)
   ============================================================= */
@media (max-width: 768px) {
  :root {
    --section-padding: 56px 0;
    --container-padding: 0 16px;
  }

  /* --- Mobile Navigation --- */
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 15, 26, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
  }

  .nav.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: 1.15rem;
    padding: 14px 24px;
  }

  .mobile-toggle {
    display: flex;
  }

  .header-right .search-btn,
  .header-right .lang-btn,
  .header-right .header-cta {
    display: none;
  }

  .header {
    padding: 12px 0;
  }

  /* --- Logo --- */
  .logo-img {
    height: 28px;
  }

  /* --- Hero Section --- */
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: 2rem;
    letter-spacing: 0;
  }

  .hero p {
    font-size: 0.95rem;
    margin-bottom: 32px;
  }

  .hero-badge {
    margin-bottom: 24px;
    font-size: 0.7rem;
    padding: 6px 16px;
  }

  .hero-btns {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .hero-btns .btn {
    justify-content: center;
    width: 100%;
  }

  .hero-stats {
    margin-top: 40px;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero-stat .stat-number {
    font-size: 1.6rem;
  }

  .hero-stat .stat-label {
    font-size: 0.7rem;
  }

  /* --- Services Section --- */
  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-card {
    padding: 28px 20px;
  }

  .service-icon {
    width: 52px;
    height: 52px;
    margin-bottom: 16px;
  }

  .services-header {
    margin-bottom: 40px;
  }

  /* --- Featured Products --- */
  .featured-card-large {
    padding: 28px 20px;
  }

  .featured-cards-right {
    flex-direction: column;
    gap: 16px;
  }

  .featured-card-sm {
    padding: 24px 20px;
  }

  .ai-visual {
    max-width: 220px;
    margin: 0 auto 24px;
  }

  .ai-modules {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .ai-module {
    font-size: 0.75rem;
    padding: 8px 10px;
  }

  /* --- Ecosystem Section --- */
  .ecosystem-map {
    display: none;
  }

  .ecosystem-list-fallback {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .eco-list-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
  }

  .eco-list-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
  }

  .eco-list-item .eco-list-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 10px;
    border-radius: 50%;
    background: var(--accent-cyan-dim);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .eco-list-item .eco-list-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--accent-cyan);
    fill: none;
    stroke-width: 2;
  }

  .eco-list-item h4 {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-primary);
  }

  /* --- Partners Section --- */
  .partners-track {
    gap: 32px;
  }

  .partner-logo {
    font-size: 0.85rem;
    padding: 14px 24px;
    min-width: auto;
  }

  /* --- Catalog Section --- */
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .catalog-card {
    padding: 14px 16px;
    gap: 12px;
  }

  .catalog-number {
    min-width: 36px;
    height: 36px;
    font-size: 0.78rem;
  }

  .catalog-info h4 {
    font-size: 0.82rem;
  }

  .catalog-download {
    display: none;
  }

  .filter-btn {
    padding: 8px 16px;
    font-size: 0.78rem;
  }

  .catalog-filters {
    gap: 6px;
    margin-bottom: 28px;
  }

  /* --- Contact Section --- */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-info {
    padding-right: 0;
  }

  .contact-form-wrapper {
    padding: 28px 20px;
  }

  .value-list {
    gap: 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* --- Footer --- */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .footer-bottom {
    font-size: 0.75rem;
    text-align: center;
  }

  /* --- Mega Menu (mobile) --- */
  .mega-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    min-width: unset;
    border-radius: 0;
    transform: none;
    padding: 80px 20px 20px;
    overflow-y: auto;
    background: rgba(10, 15, 26, 0.98);
  }

  .nav-item:hover .mega-menu {
    transform: none;
  }

  .mega-menu-grid {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .mega-menu-item {
    padding: 12px;
  }

  /* --- Section titles (smaller) --- */
  .section-title {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
  }

  .section-subtitle {
    font-size: 0.95rem;
  }

  .section-label {
    font-size: 0.7rem;
    letter-spacing: 3px;
  }
}

/* =============================================================
   RESPONSIVE — Small Mobile (≤480px)
   ============================================================= */
@media (max-width: 480px) {
  :root {
    --container-padding: 0 14px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 36px;
  }

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

  .ecosystem-list-fallback {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .eco-list-item {
    padding: 14px 10px;
  }

  .ai-modules {
    grid-template-columns: 1fr;
  }

  .partners-track {
    gap: 20px;
  }

  .partner-logo {
    font-size: 0.75rem;
    padding: 10px 18px;
  }

  .featured-card-large .card-badge {
    font-size: 0.7rem;
  }

  .contact-form-wrapper h3 {
    font-size: 1.3rem;
  }

  .value-item h4 {
    font-size: 0.9rem;
  }

  .footer-contact-info li {
    font-size: 0.8rem;
  }

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

  .catalog-info p {
    white-space: normal;
  }
}

/* =============================================================
   Desktop — hide mobile fallback
   ============================================================= */
@media (min-width: 769px) {
  .ecosystem-list-fallback {
    display: none;
  }
}

/* ---------- Utility classes ---------- */
.text-center { text-align: center; }
.text-cyan { color: var(--accent-cyan); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }