:root {
  --nc-blue: #13294b;
  --nc-blue-deep: #0a1a33;
  --nc-carolina: #4b9cd3;
  --nc-carolina-light: #e6f1f9;
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --bg: #ffffff;
  --bg-soft: #f7f9fc;
  --border: #e3e8ef;
  --radius: 10px;
  --max-width: 1080px;
  --container-pad: 1.5rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--nc-carolina);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--nc-blue);
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.container.narrow {
  max-width: 720px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--nc-blue);
  font-weight: 700;
  text-decoration: none;
}

.brand:hover {
  color: var(--nc-blue);
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--nc-blue);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.brand-name {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.site-header nav {
  display: flex;
  gap: 1.5rem;
}

.site-header nav a {
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
}

.site-header nav a:hover {
  color: var(--nc-blue);
  text-decoration: none;
}

/* Hero */
.hero {
  background:
    radial-gradient(1200px 500px at 70% -10%, rgba(75, 156, 211, 0.18), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--nc-blue);
  margin: 0.5rem 0 1.25rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--nc-carolina);
  margin: 0;
}

.lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 0 2rem;
}

.lede-dark {
  font-size: 1.25rem;
  color: var(--nc-blue);
  font-weight: 500;
  margin-top: 0.5rem;
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.15s ease, background 0.15s ease;
  border: 1px solid transparent;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--nc-blue);
  color: #fff;
  box-shadow: 0 4px 14px rgba(19, 41, 75, 0.18);
}

.btn-primary:hover {
  background: var(--nc-blue-deep);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--nc-blue);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--bg-soft);
  color: var(--nc-blue);
}

/* Sections */
.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

.section h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: -0.015em;
  color: var(--nc-blue);
  margin: 0.25rem 0 1.25rem;
}

.section p {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin: 0 0 1.1rem;
}

.section p strong {
  color: var(--ink);
}

.section-accent {
  background:
    linear-gradient(180deg, var(--nc-carolina-light) 0%, #fff 100%);
}

.section-accent h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

/* Footer */
.site-footer {
  background: var(--nc-blue);
  color: #cdd6e2;
  padding: 2.25rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
  font-size: 0.9rem;
}

.footer-meta {
  color: #8fa3bf;
}

.site-footer a {
  color: #cdd6e2;
  text-decoration: underline;
  text-decoration-color: rgba(205, 214, 226, 0.4);
  text-underline-offset: 3px;
}

.site-footer a:hover {
  color: #ffffff;
  text-decoration-color: #ffffff;
}

/* Responsive */
@media (max-width: 600px) {
  .site-header nav {
    gap: 1rem;
  }
  .site-header nav a {
    font-size: 0.88rem;
  }
  .hero {
    padding: 4rem 0 3.5rem;
  }
  .section {
    padding: 3.5rem 0;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}