:root {
  --brand-blue: #1D4E96;
  --brand-blue-dark: #163a72;
  --brand-blue-light: #2a6bc4;
  --text-dark: #1a2332;
  --text-muted: #5a6578;
  --bg-light: #f4f7fb;
  --bg-white: #ffffff;
  --border: #dde4ef;
  --shadow: 0 4px 24px rgba(29, 78, 150, 0.08);
  --shadow-lg: 0 12px 48px rgba(29, 78, 150, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--brand-blue-light);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-link img {
  height: 44px;
  width: auto;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--brand-blue);
  letter-spacing: -0.02em;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-desktop a {
  color: var(--text-dark);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-desktop a:hover {
  color: var(--brand-blue);
}

.nav-cta {
  background: var(--brand-blue);
  color: #fff !important;
  padding: 10px 22px;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
  background: var(--brand-blue-dark);
  color: #fff !important;
  transform: translateY(-1px);
}

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

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--brand-blue);
  margin: 5px 0;
  transition: 0.3s;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-white);
}

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

.nav-mobile a {
  padding: 12px 0;
  color: var(--text-dark);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}

.nav-mobile a:last-child {
  border-bottom: none;
}

/* Hero */
.hero {
  padding: 140px 0 100px;
  background: linear-gradient(160deg, #f4f7fb 0%, #ffffff 50%, #eef3fa 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(29, 78, 150, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.hero-content h1 span {
  color: var(--brand-blue);
}

.hero-tagline {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--brand-blue);
  margin-bottom: 16px;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 520px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  font-family: var(--font);
}

.btn-primary {
  background: var(--brand-blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-blue-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
  background: var(--brand-blue);
  color: #fff;
}

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

.hero-logo {
  max-width: 380px;
  filter: drop-shadow(var(--shadow-lg));
}

/* Sections */
section {
  padding: 96px 0;
}

.section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-blue);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 48px;
}

.bg-light {
  background: var(--bg-light);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.stat {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--brand-blue);
  display: block;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.about-visual {
  background: var(--brand-blue);
  border-radius: var(--radius-lg);
  padding: 48px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.about-visual::after {
  content: '';
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
}

.about-visual h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.about-visual p {
  opacity: 0.9;
  line-height: 1.7;
}

.about-visual ul {
  list-style: none;
  margin-top: 24px;
}

.about-visual li {
  padding: 10px 0;
  padding-left: 28px;
  position: relative;
  opacity: 0.95;
}

.about-visual li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 50%;
}

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

.product-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

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

.product-icon {
  width: 56px;
  height: 56px;
  background: rgba(29, 78, 150, 0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--brand-blue);
}

.product-icon svg {
  width: 28px;
  height: 28px;
}

.product-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.product-card p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  flex: 1;
  margin-bottom: 20px;
}

.product-features {
  list-style: none;
  margin-bottom: 24px;
}

.product-features li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.product-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--brand-blue);
  border-radius: 50%;
}

.product-link {
  font-weight: 600;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.pricing-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
}

.pricing-card.featured {
  border-color: var(--brand-blue);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand-blue);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing-card h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.pricing-card .price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand-blue);
  margin: 16px 0;
}

.pricing-card .price-note {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.pricing-card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
}

.pricing-card li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.pricing-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--brand-blue);
  font-weight: 700;
}

.pricing-note {
  text-align: center;
  margin-top: 40px;
  padding: 24px;
  background: rgba(29, 78, 150, 0.06);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h3 {
  font-size: 1.25rem;
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: rgba(29, 78, 150, 0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-blue);
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 20px;
  height: 20px;
}

.contact-item h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.contact-form {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.9375rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-blue);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.site-footer {
  background: var(--text-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand img {
  height: 48px;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

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

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

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8125rem;
}

.footer-legal a:hover {
  color: #fff;
}

/* Legal pages */
.legal-page {
  padding: 120px 0 80px;
}

.legal-page h1 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.legal-meta {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.legal-content h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin: 36px 0 16px;
  color: var(--brand-blue);
}

.legal-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 24px 0 12px;
}

.legal-content p,
.legal-content li {
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.7;
}

.legal-content ul,
.legal-content ol {
  margin: 12px 0 12px 24px;
}

.legal-content a {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 968px) {
  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .products-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

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

  .about-stats {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .hero-logo {
    max-width: 280px;
  }
}

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

  .menu-toggle {
    display: block;
  }

  section {
    padding: 64px 0;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}