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

:root {
  --color-primary: #1a56db;
  --color-primary-dark: #1240a8;
  --color-dark: #111827;
  --color-gray-900: #1f2937;
  --color-gray-700: #374151;
  --color-gray-500: #6b7280;
  --color-gray-200: #e5e7eb;
  --color-gray-100: #f3f4f6;
  --color-white: #ffffff;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1140px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-gray-700);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

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

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.2s, transform 0.2s;
  cursor: pointer;
  border: none;
  text-align: center;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.875rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 6px;
}

.btn-sm:hover {
  background: var(--color-primary-dark);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.125rem;
}

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
}

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

.logo {
  display: inline-flex;
  align-items: center;
}

.logo-img {
  height: 40px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: 0.2s;
}

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

.nav-list a {
  color: var(--color-gray-700);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

/* === Hero === */
.hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, #f0f5ff 0%, #e8f0fe 100%);
}

.hero h1 {
  font-size: 3.25rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.15;
  margin-bottom: 16px;
}

.hero h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: 12px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--color-gray-500);
  margin-bottom: 28px;
  max-width: 640px;
}

.hero-checks {
  list-style: none;
  margin-bottom: 36px;
}

.hero-checks li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 1rem;
  color: var(--color-gray-700);
}

.hero-checks li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* === Stats === */
.stats {
  padding: 60px 0;
  background: var(--color-gray-100);
}

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

.stat-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 32px 16px;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.2;
}

.stat-label {
  display: block;
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  margin-top: 4px;
}

/* === Sections Shared === */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-gray-500);
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

/* === Services === */
.services {
  padding: 80px 0;
}

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

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 10px;
  padding: 32px 28px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.service-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.service-icon {
  color: var(--color-primary);
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  line-height: 1.65;
}

/* === Customer Journey === */
.journey {
  padding: 80px 0;
  background: var(--color-gray-100);
}

.journey-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.journey-step {
  text-align: center;
  padding: 24px 16px;
}

.journey-num {
  display: inline-block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.3;
  margin-bottom: 12px;
}

.journey-step h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.journey-step p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* === Industries === */
.industries {
  padding: 80px 0;
}

.industries-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.industry-tag {
  display: inline-block;
  padding: 10px 20px;
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  border-radius: 100px;
  font-size: 0.9375rem;
  color: var(--color-gray-700);
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}

.industry-tag:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* === CTA Section === */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #1a56db 0%, #1240a8 100%);
  text-align: center;
}

.cta-section h2 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.cta-section .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
}

.cta-section .btn-primary:hover {
  background: var(--color-gray-100);
}

/* === Footer === */
.site-footer {
  background: var(--color-gray-900);
  padding: 64px 0 0;
}

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

.footer-brand .logo {
  margin-bottom: 12px;
  display: inline-block;
}

.footer-logo-img {
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  line-height: 1.65;
  max-width: 360px;
}

.footer-links h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

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

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

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

  .hero {
    padding: 64px 0 48px;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero h2 {
    font-size: 1.25rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stat-number {
    font-size: 2rem;
  }

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

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

  .section-title {
    font-size: 1.625rem;
  }

  .cta-section h2 {
    font-size: 1.75rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.875rem;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

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