:root {
  --background: #0f172a;
  --surface: #111827;
  --surface-light: #1f2937;
  --accent: #3b82f6;
  --accent-soft: rgba(59, 130, 246, 0.15);
  --text-primary: #0f172a;
  --text-secondary: #374151;
  --text-inverse: #f3f4f6;
  --max-width: 1200px;
  --radius: 16px;
  --shadow: 0 20px 50px -24px rgba(15, 23, 42, 0.6);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-primary);
  background: #f8fafc;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.container {
  width: min(100% - 3rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
}

.nav {
  display: flex;
  gap: 1.5rem;
  font-weight: 500;
}

.cta {
  color: white;
  background: var(--accent);
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.hero {
  position: relative;
  padding: 6rem 0 5rem;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 45%),
    linear-gradient(135deg, #0f172a, #1f2937);
  color: var(--text-inverse);
  overflow: hidden;
}

.hero .container {
  display: grid;
  gap: 3rem;
  align-items: center;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hero-content h1 {
  font-size: clamp(2.5rem, 3.5vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-content .lead {
  font-size: 1.1rem;
  color: rgba(241, 245, 249, 0.88);
  max-width: 32rem;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-card {
  background: rgba(15, 23, 42, 0.58);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.hero-card h2 {
  margin-top: 0;
  font-size: 1.25rem;
}

.hero-card ul {
  padding-left: 1.25rem;
  margin: 1rem 0 0;
  color: rgba(241, 245, 249, 0.86);
}

.section {
  padding: 5rem 0;
  background: white;
}

.section.light {
  background: #f1f5f9;
}

.section-header {
  margin-bottom: 2.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.card {
  background: white;
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.expertise-item {
  background: #f8fafc;
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.cta {
  align-items: center;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease;
}

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

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn.secondary {
  background: transparent;
  color: white;
  border: 1px solid rgba(241, 245, 249, 0.4);
}

.section.cta {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.96), rgba(30, 64, 175, 0.95));
  color: var(--text-inverse);
  text-align: center;
}

.section.cta .container {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  align-items: center;
  justify-content: center;
}

.cta-content {
  max-width: 46rem;
  text-align: center;
  margin: 0 auto;
}

.section.contact {
  background: #0f172a;
  color: var(--text-inverse);
}

.section.contact .container {
  display: flex;
  justify-content: center;
}

.contact-card {
  background: rgba(15, 23, 42, 0.6);
  padding: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 30rem;
  text-align: center;
  align-items: center;
}

.contact-card p {
  margin: 0;
}

.contact-email {
  min-width: 14rem;
}

.contact-response {
  color: rgba(226, 232, 240, 0.75);
  font-size: 0.9rem;
}

.site-footer {
  padding: 2rem 0;
  background: #020617;
  color: rgba(226, 232, 240, 0.7);
  text-align: center;
  font-size: 0.9rem;
}

@media (max-width: 1024px) {
  .hero .container,
  .two-column,
  .cards,
  .expertise-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cards,
  .expertise-grid {
    gap: 1.25rem;
  }
}

@media (max-width: 768px) {
  .site-header .container {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .nav {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding: 5rem 0 4rem;
  }

  .hero .container,
  .two-column,
  .cards,
  .expertise-grid {
    grid-template-columns: 1fr;
  }

  .hero-card {
    order: -1;
  }

  .section.contact .container {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .container {
    width: min(100% - 2rem, var(--max-width));
  }

  .hero-content .lead {
    font-size: 1rem;
  }

  .cards {
    gap: 1rem;
  }

  .card,
  .contact-card {
    padding: 1.75rem;
  }
}