* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: #16202b;
  background: #f8f8f6;
  line-height: 1.6;
}

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

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.narrow {
  width: min(760px, calc(100% - 48px));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(248, 248, 246, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(22, 32, 43, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  gap: 24px;
  font-size: 0.95rem;
  color: #42505f;
}

.hero {
  padding: 120px 0 96px;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: #6d7a88;
}

h1, h2, h3 {
  margin-top: 0;
  color: #0f1720;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  line-height: 1.08;
  max-width: 980px;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.lead {
  max-width: 720px;
  font-size: 1.15rem;
  color: #42505f;
  margin-bottom: 32px;
}

.button {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 999px;
  background: #172331;
  color: #ffffff;
  font-weight: 600;
}

.section {
  padding: 88px 0;
}

.alt {
  background: #ffffff;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

.grid {
  display: grid;
  gap: 24px;
}

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

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.step,
.mini-card,
.contact-box {
  background: #ffffff;
  border: 1px solid rgba(22, 32, 43, 0.08);
  border-radius: 18px;
  padding: 28px;
}

.alt .card,
.alt .mini-card {
  background: #fdfdfc;
}

p {
  margin: 0 0 18px;
  color: #42505f;
}

p:last-child {
  margin-bottom: 0;
}

.site-footer {
  padding: 32px 0 48px;
  border-top: 1px solid rgba(22, 32, 43, 0.08);
}

.footer-inner {
  color: #6d7a88;
  font-size: 0.92rem;
}

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

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 0;
  }

  .nav {
    flex-wrap: wrap;
    gap: 14px 18px;
  }

  .hero {
    padding: 96px 0 72px;
  }
}

@media (max-width: 560px) {
  .container,
  .narrow {
    width: min(100% - 32px, 1120px);
  }

  .card,
  .step,
  .mini-card,
  .contact-box {
    padding: 22px;
  }

  .button {
    width: 100%;
    text-align: center;
  }
}