:root {
  --navy: #0f2540;
  --blue: #1c5dbe;
  --ink: #1a1f27;
  --muted: #5a6472;
  --bg: #ffffff;
  --bg-alt: #f4f6f9;
  --border: #e2e6ec;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--blue); }

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--navy);
  text-decoration: none;
}

.logo span { color: var(--blue); }

nav a {
  margin-left: 24px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
}

nav a:hover, nav a:focus-visible { color: var(--blue); }

.hero {
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: #fff;
  padding: 96px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin: 0 0 16px;
}

.lede {
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto 32px;
  color: rgba(255,255,255,0.9);
}

.btn {
  display: inline-block;
  background: #fff;
  color: var(--navy);
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 6px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover, .btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.section {
  padding: 80px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section h2 {
  font-size: 2rem;
  color: var(--navy);
  margin-bottom: 24px;
  text-align: center;
}

.section > .container > p {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  color: var(--muted);
}

#contact p {
  text-align: center;
  color: var(--muted);
  margin-bottom: 24px;
}

#contact .btn {
  background: var(--blue);
  color: #fff;
  display: block;
  width: max-content;
  margin: 0 auto;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
}

.card h3 {
  color: var(--navy);
  margin-top: 0;
}

.card p {
  color: var(--muted);
  margin-bottom: 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .hero { padding: 64px 0; }
  .section { padding: 56px 0; }
  nav a { margin-left: 14px; }
}