* {
  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;
}

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 680px;
  background: linear-gradient(135deg, #172033 0%, #263a5e 100%);
  color: #ffffff;
}

.topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

nav {
  display: flex;
  gap: 24px;
  font-size: 15px;
}

nav a {
  color: #ffffff;
  text-decoration: none;
  opacity: 0.85;
}

nav a:hover {
  opacity: 1;
}

.hero-content {
  max-width: 760px;
  padding: 120px 0 80px;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
  font-weight: 700;
  color: #5d78b7;
}

.hero .eyebrow {
  color: #b9c8ef;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(42px, 7vw, 72px);
  line-height: 1.05;
}

h2 {
  margin: 0 0 24px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.15;
}

h3 {
  margin-top: 0;
  font-size: 22px;
}

.lead {
  max-width: 680px;
  font-size: 22px;
  color: #d9e2f7;
}

.button {
  display: inline-block;
  margin-top: 22px;
  padding: 14px 24px;
  border-radius: 10px;
  background: #ffffff;
  color: #172033;
  text-decoration: none;
  font-weight: 700;
}

.section {
  padding: 90px 0;
}

.muted {
  background: #f4f6fa;
}

.grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 34px;
}

.card {
  padding: 28px;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 10px 35px rgba(23, 32, 51, 0.08);
}

.list {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.list-item {
  display: grid;
  gap: 6px;
  padding: 22px 0;
  border-bottom: 1px solid #dde3ef;
}

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

.dark .eyebrow {
  color: #b9c8ef;
}

.dark a {
  color: #ffffff;
}

@media (max-width: 800px) {
  .topline {
    align-items: flex-start;
    gap: 20px;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .hero-content {
    padding: 70px 0 80px;
  }

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

  .section {
    padding: 64px 0;
  }
}