* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #172033;
  background: #ffffff;
  line-height: 1.6;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid #e5e7eb;
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
}

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

nav a {
  margin-left: 24px;
  color: #172033;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
}

nav a:hover {
  color: #1d4ed8;
}

.hero {
  padding: 110px 0;
  background: linear-gradient(135deg, #f8fafc, #eaf1ff);
}

.hero-content {
  max-width: 820px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 800;
  color: #1d4ed8;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.05;
  margin: 14px 0 22px;
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.15;
  margin: 10px 0 20px;
  letter-spacing: -0.03em;
}

h3 {
  margin-top: 0;
  font-size: 1.15rem;
}

p {
  font-size: 1rem;
}

.hero-text {
  font-size: 1.22rem;
  max-width: 720px;
  color: #334155;
}

.button {
  display: inline-block;
  margin-top: 26px;
  padding: 14px 24px;
  background: #172033;
  color: #ffffff;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 800;
}

.button:hover {
  background: #1d4ed8;
}

.section {
  padding: 82px 0;
}

.light {
  background: #f8fafc;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1.45fr;
  gap: 64px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 36px;
}

.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.card p {
  color: #475569;
}

.narrow {
  max-width: 780px;
}

.contact {
  background: #172033;
  color: #ffffff;
}

.contact p {
  color: #dbeafe;
}

.contact .eyebrow {
  color: #93c5fd;
}

.email a {
  color: #ffffff;
  font-weight: 800;
  font-size: 1.2rem;
}

footer {
  padding: 26px 0;
  background: #0f172a;
  color: #cbd5e1;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 700px) {
  .nav {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
  }

  nav a {
    margin-left: 0;
    margin-right: 16px;
    display: inline-block;
    margin-bottom: 8px;
  }

  .grid,
  .cards {
    grid-template-columns: 1fr;
  }

  .hero,
  .section {
    padding: 60px 0;
  }
}