* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f6f8fb;
  color: #172033;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

a {
  color: #1e63d6;
}

.site-header {
  background: #12385b;
  color: #fff;
  padding: 24px;
}

.nav {
  align-items: center;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 960px;
}

.brand {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  text-decoration: none;
}

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

.nav-links a {
  color: #dbeafe;
  font-size: 14px;
  text-decoration: none;
}

.container {
  margin: 0 auto;
  max-width: 880px;
  padding: 48px 24px;
}

.hero {
  padding-bottom: 28px;
}

.eyebrow {
  color: #1e63d6;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(36px, 7vw, 64px);
  line-height: 1.02;
  margin: 12px 0 16px;
}

h2 {
  border-top: 1px solid #dbe3ef;
  font-size: 24px;
  margin-top: 36px;
  padding-top: 28px;
}

h3 {
  font-size: 18px;
  margin-top: 28px;
}

p,
li {
  font-size: 16px;
}

.lead {
  color: #46566d;
  font-size: 19px;
  max-width: 720px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  background: #1e63d6;
  border-radius: 8px;
  color: #fff;
  display: inline-block;
  font-weight: 700;
  padding: 12px 16px;
  text-decoration: none;
}

.button.secondary {
  background: #e8eef8;
  color: #12385b;
}

.notice {
  background: #fff7d6;
  border: 1px solid #f3db86;
  border-radius: 8px;
  color: #4f3b00;
  margin: 24px 0;
  padding: 14px 16px;
}

.card-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 28px;
}

.card {
  background: #fff;
  border: 1px solid #dbe3ef;
  border-radius: 8px;
  padding: 18px;
}

.card h2,
.card h3 {
  border: 0;
  margin: 0 0 8px;
  padding: 0;
}

.site-footer {
  border-top: 1px solid #dbe3ef;
  color: #5c6b80;
  margin: 24px auto 0;
  max-width: 880px;
  padding: 24px;
}

@media (max-width: 640px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo img {
  height: 44px;
  width: auto;
  display: block;
}

@media (max-width: 560px) {
  .brand-logo img {
    height: 36px;
  }
}