*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --navy-900: #060e1a;
  --navy-800: #0a1628;
  --navy-700: #0f1f3a;
  --navy-600: #14294d;
  --navy-500: #1a3361;
  --blue-400: #2563eb;
  --blue-300: #3b82f6;
  --teal-400: #06b6d4;
  --teal-300: #22d3ee;
  --teal-200: #67e8f9;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --gradient-primary: linear-gradient(135deg, #0a1628 0%, #1a3361 50%, #14294d 100%);
  --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.1);
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--gray-800);
  background: var(--gray-50);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

a {
  color: var(--blue-400);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--teal-400);
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.45);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--blue-400);
  border: 2px solid var(--blue-400);
}

.btn-outline:hover {
  background: var(--blue-400);
  color: var(--white);
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0;
  height: 72px;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  color: var(--gray-300);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--white);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: all 0.3s;
  border-radius: 2px;
}

section {
  padding: 100px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--teal-400);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--navy-800);
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--gray-600);
  max-width: 600px;
  line-height: 1.7;
}

.hero {
  background: var(--gradient-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

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

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.1;
}

.hero-content h1 .highlight {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--gray-300);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.7;
}

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

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 48px;
  backdrop-filter: blur(10px);
  width: 100%;
  max-width: 460px;
}

.hero-card .stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.hero-card .stat-item {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}

.hero-card .stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--teal-300);
  display: block;
}

.hero-card .stat-label {
  font-size: 0.85rem;
  color: var(--gray-300);
  margin-top: 4px;
}

.services {
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.service-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all 0.3s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--teal-200);
}

.service-card .service-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.5rem;
  color: var(--white);
}

.service-card h3 {
  font-size: 1.25rem;
  color: var(--navy-800);
  margin-bottom: 12px;
}

.service-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

.expertise {
  background: var(--gray-50);
  position: relative;
  overflow: hidden;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.expertise-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--gray-200);
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.expertise-item .exp-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--navy-600);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--teal-300);
}

.expertise-item h3 {
  font-size: 1.15rem;
  color: var(--navy-800);
  margin-bottom: 8px;
}

.expertise-item p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

.cta-section {
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-section .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-section .section-title {
  color: var(--white);
  font-size: 2.6rem;
}

.cta-section .section-subtitle {
  color: var(--gray-300);
  margin: 0 auto 36px;
}

footer {
  background: var(--navy-900);
  color: var(--gray-300);
  padding: 72px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-about p {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--gray-300);
  line-height: 1.7;
}

.footer-column h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-column ul {
  list-style: none;
}

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

.footer-column ul li a {
  color: var(--gray-300);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-column ul li a:hover {
  color: var(--teal-300);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
}

.footer-bottom a {
  color: var(--teal-400);
}

.page-header {
  background: var(--gradient-primary);
  padding: 140px 0 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

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

.page-header h1 {
  font-size: 3rem;
  color: var(--white);
  margin-bottom: 16px;
}

.page-header p {
  color: var(--gray-300);
  font-size: 1.1rem;
}

.policy-content {
  background: var(--white);
  padding: 72px 0;
}

.policy-content .container {
  max-width: 860px;
}

.policy-content h2 {
  font-size: 1.6rem;
  color: var(--navy-800);
  margin: 44px 0 16px;
  padding-top: 20px;
  border-top: 2px solid var(--gray-200);
}

.policy-content h2:first-of-type {
  margin-top: 0;
  border-top: none;
  padding-top: 0;
}

.policy-content p {
  color: var(--gray-700);
  margin-bottom: 16px;
  line-height: 1.8;
  font-size: 1rem;
}

.policy-content ul,
.policy-content ol {
  margin-bottom: 16px;
  padding-left: 28px;
}

.policy-content li {
  color: var(--gray-700);
  margin-bottom: 8px;
  line-height: 1.7;
}

.policy-content strong {
  color: var(--navy-800);
}

.policy-content .last-updated {
  background: var(--gray-100);
  border-left: 4px solid var(--teal-400);
  padding: 18px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 36px;
  font-size: 0.9rem;
  color: var(--gray-600);
}

.not-found-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 40px 24px;
}

.not-found-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.not-found-content {
  position: relative;
  z-index: 1;
}

.not-found-content .nf-code {
  font-size: 10rem;
  font-weight: 900;
  line-height: 1;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.not-found-content h2 {
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 16px;
}

.not-found-content p {
  color: var(--gray-300);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 500px;
}

@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-visual {
    order: -1;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--navy-900);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-links.open {
    display: flex;
  }

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

  .hero-content h1 {
    font-size: 2.4rem;
  }

  .section-title {
    font-size: 2rem;
  }

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

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

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

  .page-header h1 {
    font-size: 2.2rem;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.9rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}