/* C2G Insights — institutional knowledge base
   Lightweight, dependency-free, fast for crawlers. */

:root {
  --navy: #0f2a43;
  --navy-2: #14385a;
  --teal: #175a63;
  --teal-2: #1f7882;
  --ink: #1c2733;
  --body: #38444f;
  --muted: #66727d;
  --line: #e4e8ec;
  --bg: #ffffff;
  --bg-soft: #f6f8fa;
  --bg-tint: #eef4f4;
  --max: 760px;
  --wide: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--body);
  background: var(--bg);
  line-height: 1.65;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand .mark {
  font-weight: 800;
  letter-spacing: 0.5px;
  font-size: 20px;
  color: var(--navy);
}
.brand .sub {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 2px;
}
.nav-links { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--ink); font-size: 15px; font-weight: 500; }
.nav-cta {
  background: var(--teal);
  color: #fff !important;
  padding: 9px 16px;
  border-radius: 6px;
  font-size: 14px !important;
}
.nav-cta:hover { background: var(--teal-2); text-decoration: none; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: var(--wide); margin: 0 auto; padding: 0 24px; }

main { padding: 48px 0 64px; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #eaf1f6;
  padding: 64px 0 56px;
}
.hero h1 { color: #fff; font-size: 40px; line-height: 1.15; margin: 0 0 16px; letter-spacing: -0.5px; }
.hero p { font-size: 20px; color: #c4d4e0; margin: 0 0 28px; max-width: 620px; }
.hero .stat-row { display: flex; gap: 32px; flex-wrap: wrap; margin-top: 8px; }
.hero .stat .n { font-size: 26px; font-weight: 800; color: #fff; }
.hero .stat .l { font-size: 13px; color: #9fb4c4; text-transform: uppercase; letter-spacing: 1px; }

/* ---------- Typography ---------- */
h1, h2, h3 { color: var(--ink); font-weight: 700; }
.article h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.4px; }
.article h2 { font-size: 25px; margin: 40px 0 12px; padding-top: 8px; }
.article h3 { font-size: 20px; margin: 28px 0 8px; }
.article p, .article li { font-size: 18px; }
.article ul, .article ol { padding-left: 22px; }
.article li { margin: 6px 0; }

.lead { font-size: 21px; line-height: 1.55; color: var(--ink); }

/* ---------- Eyebrow / meta ---------- */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 10px;
}
.byline {
  font-size: 14px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  padding-bottom: 20px;
  margin-bottom: 28px;
}
.byline strong { color: var(--ink); }

.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--muted); }

/* ---------- Key takeaways box ---------- */
.takeaways {
  background: var(--bg-tint);
  border: 1px solid #d7e3e3;
  border-left: 4px solid var(--teal);
  border-radius: 8px;
  padding: 20px 24px;
  margin: 28px 0;
}
.takeaways h2 { margin: 0 0 10px; font-size: 16px; text-transform: uppercase; letter-spacing: 1px; color: var(--teal); padding: 0; }
.takeaways ul { margin: 0; padding-left: 20px; }
.takeaways li { font-size: 16px; margin: 6px 0; }

/* ---------- Callout ---------- */
.callout {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 22px;
  margin: 24px 0;
  font-size: 16px;
}
.callout strong { color: var(--ink); }

/* ---------- FAQ ---------- */
.faq { margin-top: 16px; }
.faq-item { border-top: 1px solid var(--line); padding: 18px 0; }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0 0 6px; font-size: 18px; color: var(--navy); }
.faq-item p { margin: 0; font-size: 17px; }

/* ---------- Cards / topic grid ---------- */
.section-head { margin: 8px 0 24px; }
.section-head h2 { font-size: 26px; margin: 0 0 6px; }
.section-head p { color: var(--muted); margin: 0; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 24px 0 8px;
}
.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px;
  background: #fff;
  transition: box-shadow .15s ease, transform .15s ease;
  display: block;
}
.card:hover { box-shadow: 0 8px 24px rgba(15,42,67,.08); transform: translateY(-2px); text-decoration: none; }
.card .tag { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--teal); font-weight: 700; }
.card h3 { margin: 8px 0 6px; font-size: 19px; color: var(--ink); }
.card p { margin: 0; font-size: 15px; color: var(--body); }

.cluster { margin: 40px 0; }
.cluster > h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.linklist { list-style: none; padding: 0; margin: 14px 0 0; columns: 2; column-gap: 32px; }
.linklist li { margin: 0 0 10px; break-inside: avoid; font-size: 16px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--navy);
  color: #eaf1f6;
  border-radius: 12px;
  padding: 36px 32px;
  margin: 48px 0 0;
  text-align: center;
}
.cta-band h2 { color: #fff; margin: 0 0 8px; font-size: 24px; }
.cta-band p { color: #b9cad7; margin: 0 0 20px; }
.btn {
  display: inline-block;
  background: var(--teal);
  color: #fff !important;
  padding: 13px 26px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 16px;
}
.btn:hover { background: var(--teal-2); text-decoration: none; }
.btn-ghost { background: transparent; border: 1px solid #4a6075; }

/* ---------- Related ---------- */
.related { margin-top: 48px; border-top: 1px solid var(--line); padding-top: 24px; }
.related h2 { font-size: 16px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.related ul { padding-left: 0; list-style: none; }
.related li { margin: 8px 0; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 40px 0;
  margin-top: 64px;
  font-size: 14px;
  color: var(--muted);
}
.footer-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-grid a { color: var(--body); }
.footer-brand .mark { font-weight: 800; color: var(--navy); font-size: 18px; }
.footer-cities { margin-top: 10px; font-size: 13px; color: var(--muted); }
.footer-legal { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 13px; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  body { font-size: 17px; }
  .hero h1 { font-size: 30px; }
  .article h1 { font-size: 27px; }
  .nav-links { gap: 14px; }
  .nav-links a.hide-sm { display: none; }
  .linklist { columns: 1; }
}