:root {
  --bg: #f7f8fc;
  --surface: #ffffff;
  --primary: #1f4a8a;
  --primary-dark: #143360;
  --text: #1a1f2b;
  --muted: #4d5b75;
  --border: #dde3f0;
  --accent: #0ea5a4;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.3px;
}

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

nav a {
  color: var(--text);
  font-weight: 600;
}

nav a.active,
nav a:hover {
  color: var(--primary);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 72px;
}

.hero,
.content-card,
.cta-strip,
.faq {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: 0 4px 14px rgba(21, 42, 79, 0.04);
}

h1,
h2,
h3 {
  line-height: 1.3;
  color: #0d1b34;
}

h1 {
  margin-top: 0;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

h2 {
  margin-top: 0;
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
}

p {
  margin: 0 0 1rem;
}

ul {
  margin: 0;
  padding-left: 1.3rem;
}

li + li {
  margin-top: 0.45rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.button {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  border-radius: 999px;
  padding: 11px 18px;
  border: 1px solid transparent;
}

.button:hover {
  text-decoration: none;
  background: var(--primary-dark);
}

.button.secondary {
  background: #fff;
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 1rem;
}

.link-grid a {
  background: #f0f4ff;
  border: 1px solid #d8e1fb;
  border-radius: 10px;
  padding: 10px 12px;
  font-weight: 600;
}

small.meta-line {
  display: block;
  margin-bottom: 0.6rem;
  font-weight: 600;
  color: var(--muted);
}

.site-footer {
  background: #0d1b34;
  color: #dde7ff;
  padding: 44px 20px;
}

.footer-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-wrap h2 {
  margin-bottom: 8px;
  color: #ffffff;
}

.footer-wrap p {
  margin: 0.2rem 0;
}

.footer-wrap a {
  color: #9dd5ff;
}

@media (max-width: 820px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .content-card,
  .cta-strip,
  .faq {
    padding: 20px;
  }
}