/* ============================================
   OneFinger Identity Verification - Website Styles
   Premium Dark Theme with Teal/Cyan Accents
   ============================================ */

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

/* ============ CSS Variables ============ */
:root {
  --bg-primary: #0a1628;
  --bg-secondary: #0f1f3d;
  --bg-card: rgba(15, 31, 61, 0.6);
  --bg-card-hover: rgba(15, 31, 61, 0.85);
  --bg-glass: rgba(10, 22, 40, 0.85);
  --accent-teal: #00d4aa;
  --accent-teal-dim: rgba(0, 212, 170, 0.15);
  --accent-blue: #0066ff;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(0, 212, 170, 0.15);
  --border-bright: rgba(0, 212, 170, 0.35);
  --glow-teal: 0 0 30px rgba(0, 212, 170, 0.3);
  --glow-blue: 0 0 30px rgba(0, 102, 255, 0.3);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: all 0.35s 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;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent-teal);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: #33e0be;
}

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

/* ============ Scrollbar ============ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-teal), var(--accent-blue));
  border-radius: 10px;
}

/* ============ Utility ============ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::before {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--accent-teal);
  display: inline-block;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-blue));
  color: var(--bg-primary);
  box-shadow: 0 4px 20px rgba(0, 212, 170, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 170, 0.5);
  color: var(--bg-primary);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-bright);
}

.btn-secondary:hover {
  background: var(--accent-teal-dim);
  border-color: var(--accent-teal);
  transform: translateY(-2px);
  color: var(--text-primary);
}

/* ============ Animations ============ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 170, 0.2); }
  50% { box-shadow: 0 0 40px rgba(0, 212, 170, 0.4); }
}

@keyframes scanLine {
  0% { top: 0%; }
  100% { top: 100%; }
}

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

@keyframes rotateGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ Navigation ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
}

.nav-brand-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-brand-text span {
  color: var(--accent-teal);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-teal);
  transition: var(--transition);
}

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

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

.nav-cta {
  padding: 10px 24px !important;
  font-size: 0.85rem !important;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 6px 0;
  transition: var(--transition);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  padding: 100px 24px;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  font-size: 1.3rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============ Hero Section ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 22, 40, 0.3) 0%,
    rgba(10, 22, 40, 0.7) 50%,
    var(--bg-primary) 100%
  );
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--accent-teal);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 8s infinite;
}

@keyframes particleFloat {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  20% { opacity: 0.8; }
  80% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1.5); }
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  animation: fadeInLeft 1s ease;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--accent-teal-dim);
  border: 1px solid var(--border-bright);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-teal);
  margin-bottom: 24px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

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

.hero h1 {
  font-family: var(--font-display);
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  animation: fadeInRight 1s ease 0.3s both;
  display: flex;
  justify-content: center;
  align-items: center;
}

.fingerprint-scanner {
  position: relative;
  width: 320px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scanner-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--border);
  animation: glow 3s infinite ease-in-out;
}

.scanner-ring:nth-child(1) {
  width: 100%;
  height: 100%;
  animation-delay: 0s;
}

.scanner-ring:nth-child(2) {
  width: 80%;
  height: 80%;
  animation-delay: 0.5s;
}

.scanner-ring:nth-child(3) {
  width: 60%;
  height: 60%;
  animation-delay: 1s;
}

.scanner-core {
  position: relative;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-teal-dim), rgba(0, 102, 255, 0.1));
  border: 2px solid var(--accent-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--glow-teal);
}

.scanner-core img {
  width: 80%;
  height: 80%;
  object-fit: contain;
  filter: brightness(1.2);
}

.scan-line {
  position: absolute;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-teal), transparent);
  animation: scanLine 2s linear infinite;
}

/* ============ Stats Bar ============ */
.stats-bar {
  padding: 60px 0;
  position: relative;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 20px;
  transition: var(--transition);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 8px;
  font-weight: 600;
}

/* ============ About Section ============ */
.about {
  padding: 120px 0;
  position: relative;
}

.about .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-media {
  position: relative;
}

.about-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--glow-teal);
}

.about-image-wrapper img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.about-floating-card {
  position: absolute;
  bottom: -30px;
  right: -20px;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 20px 28px;
  animation: float 4s ease-in-out infinite;
}

.about-floating-card .card-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-blue));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.about-floating-card .card-text {
  font-weight: 700;
  font-size: 1.3rem;
}

.about-floating-card .card-subtext {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.about-content .about-description {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.about-features-list {
  list-style: none;
  margin-top: 28px;
}

.about-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.about-features-list li:last-child {
  border-bottom: none;
}

.check-icon {
  width: 22px;
  height: 22px;
  min-width: 22px;
  background: var(--accent-teal-dim);
  border: 1px solid var(--accent-teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  font-size: 0.7rem;
  color: var(--accent-teal);
}

/* ============ Problem Section ============ */
.problem {
  padding: 120px 0;
  position: relative;
  background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary), var(--bg-primary));
}

.problem .section-header {
  text-align: center;
  margin-bottom: 60px;
}

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

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-teal), var(--accent-blue));
  opacity: 0;
  transition: var(--transition);
}

.problem-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-5px);
  background: var(--bg-card-hover);
}

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

.problem-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-teal-dim);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.problem-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ============ Eight Pillars Section ============ */
.pillars {
  padding: 120px 0;
}

.pillars .section-header {
  text-align: center;
  margin-bottom: 60px;
}

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

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

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.pillar-card:hover {
  border-color: var(--accent-teal);
  transform: translateY(-5px);
  box-shadow: var(--glow-teal);
}

.pillar-number {
  position: absolute;
  top: 12px;
  right: 16px;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(0, 212, 170, 0.08);
}

.pillar-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.pillar-card h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.pillar-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============ How It Works ============ */
.how-it-works {
  padding: 120px 0;
  background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary), var(--bg-primary));
}

.how-it-works .section-header {
  text-align: center;
  margin-bottom: 70px;
}

.how-it-works .section-subtitle {
  margin: 0 auto;
}

.steps-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.steps-timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-teal), var(--accent-blue), var(--accent-purple));
}

.step {
  display: flex;
  gap: 32px;
  margin-bottom: 48px;
  position: relative;
}

.step:last-child {
  margin-bottom: 0;
}

.step-number {
  width: 58px;
  height: 58px;
  min-width: 58px;
  background: var(--bg-primary);
  border: 2px solid var(--accent-teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-teal);
  z-index: 1;
  box-shadow: var(--glow-teal);
}

.step-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  flex: 1;
  transition: var(--transition);
}

.step-content:hover {
  border-color: var(--border-bright);
  transform: translateX(5px);
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ============ Industries Section ============ */
.industries {
  padding: 120px 0;
}

.industries .section-header {
  text-align: center;
  margin-bottom: 60px;
}

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

.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: default;
}

.industry-chip:hover {
  border-color: var(--accent-teal);
  color: var(--text-primary);
  background: var(--accent-teal-dim);
  transform: scale(1.02);
}

.industry-chip .chip-icon {
  font-size: 1.3rem;
}

/* ============ AI Development Section ============ */
.ai-dev {
  padding: 120px 0;
  position: relative;
  background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary), var(--bg-primary));
}

.ai-dev .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.ai-dev-content .highlight-box {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-left: 4px solid var(--accent-teal);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  margin: 28px 0;
}

.ai-dev-content .highlight-box p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.ai-dev-content .highlight-box strong {
  color: var(--accent-teal);
}

.ai-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.ai-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}

.ai-card:hover {
  border-color: var(--accent-teal);
  transform: translateY(-3px);
}

.ai-card:nth-child(2) {
  transform: translateY(20px);
}

.ai-card:nth-child(2):hover {
  transform: translateY(17px);
}

.ai-card .ai-card-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.ai-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.ai-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============ Media / Video Section ============ */
.media-section {
  padding: 120px 0;
}

.media-section .section-header {
  text-align: center;
  margin-bottom: 60px;
}

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

.media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.media-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.media-card:hover {
  border-color: var(--accent-teal);
  transform: translateY(-5px);
  box-shadow: var(--glow-teal);
}

.media-card .video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.media-card .video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.media-card .media-info {
  padding: 24px;
}

.media-card .media-date {
  font-size: 0.78rem;
  color: var(--accent-teal);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.media-card .media-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.media-card .media-description {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ============ Timeline Section ============ */
.timeline-section {
  padding: 120px 0;
  background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary), var(--bg-primary));
}

.timeline-section .section-header {
  text-align: center;
  margin-bottom: 70px;
}

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

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-teal), var(--accent-blue), var(--accent-purple), var(--accent-teal));
}

.timeline-item {
  display: flex;
  gap: 40px;
  margin-bottom: 48px;
  position: relative;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-item:nth-child(even) .timeline-content {
  text-align: right;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--accent-teal);
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
  z-index: 1;
  box-shadow: var(--glow-teal);
}

.timeline-content {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: var(--border-bright);
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-teal);
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Spacer for the other half */
.timeline-spacer {
  flex: 1;
}

/* ============ CTA Section ============ */
.cta {
  padding: 120px 0;
  text-align: center;
  position: relative;
}

.cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.08), transparent 70%);
  border-radius: 50%;
}

.cta .container {
  position: relative;
  z-index: 1;
}

.cta .section-title {
  max-width: 600px;
  margin: 0 auto 20px;
}

.cta .section-subtitle {
  max-width: 500px;
  margin: 0 auto 40px;
  text-align: center;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============ Footer ============ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  line-height: 1.7;
  max-width: 300px;
}

.footer h5 {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom .footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent-teal);
  border-color: var(--accent-teal);
  color: var(--bg-primary);
}

/* Hidden Partner Link */
.partner-link-hidden {
  color: var(--bg-secondary) !important;
  font-size: 1px;
  line-height: 1px;
  position: absolute;
  overflow: hidden;
  opacity: 0;
  pointer-events: auto;
  width: 1px;
  height: 1px;
}

.partner-link-hidden:hover,
.partner-link-hidden:focus {
  color: var(--accent-teal) !important;
  opacity: 1;
  width: auto;
  height: auto;
  font-size: inherit;
  position: static;
  overflow: visible;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .section-title { font-size: 2.2rem; }
  .hero h1 { font-size: 2.8rem; }
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-content { display: flex; flex-direction: column; align-items: center; }
  .hero p { margin: 0 auto 36px; }
  .hero-buttons { justify-content: center; }
  .hero-visual { margin-top: 40px; }
  .fingerprint-scanner { width: 240px; height: 240px; }
  .scanner-core { width: 100px; height: 100px; }

  .about .container { grid-template-columns: 1fr; gap: 40px; }
  .ai-dev .container { grid-template-columns: 1fr; gap: 40px; }

  .stats-bar .container { grid-template-columns: repeat(2, 1fr); }
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .timeline-item { flex-direction: column !important; padding-left: 40px; }
  .timeline-item:nth-child(even) .timeline-content { text-align: left; }
  .timeline::before { left: 8px; }
  .timeline-dot { left: 8px; transform: translateX(0); }
  .timeline-spacer { display: none; }
}

@media (max-width: 768px) {
  .section-title { font-size: 1.8rem; }
  .hero h1 { font-size: 2.2rem; }
  .stat-number { font-size: 2.2rem; }

  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }

  .problem-grid { grid-template-columns: 1fr; }
  .pillars-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-visual { grid-template-columns: 1fr; }
  .ai-card:nth-child(2),
  .ai-card:nth-child(2):hover { transform: none; }

  .steps-timeline::before { left: 20px; }
  .step-number { width: 42px; height: 42px; min-width: 42px; font-size: 1rem; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }

  .hero-buttons { flex-direction: column; align-items: center; }
  .cta-buttons { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  .stats-bar .container { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
}