:root {
  --bg: #f7f9fb;
  --surface: #ffffff;
  --ink: #172033;
  --muted: #627084;
  --line: #dce4ec;
  --soft: #eef3f7;
  --brand: #176b87;
  --brand-dark: #0e4c63;
  --green: #2f7d62;
  --copper: #9a6a36;
  --max: 1180px;
  --shadow: 0 18px 46px rgba(23, 32, 51, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
p { margin: 0; color: var(--muted); line-height: 1.75; }
h1, h2, h3 { margin: 0; color: var(--ink); letter-spacing: 0; }
h1 { max-width: 860px; font-size: 58px; line-height: 1.06; font-weight: 800; }
h2 { font-size: 38px; line-height: 1.18; font-weight: 780; }
h3 { font-size: 22px; line-height: 1.35; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(220, 228, 236, 0.88);
  background: rgba(247, 249, 251, 0.94);
  backdrop-filter: blur(18px);
}
.nav {
  max-width: var(--max);
  min-height: 72px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 190px; }
.brand-mark { width: 34px; height: 34px; flex: 0 0 34px; }
.brand-word {
  display: inline-flex;
  align-items: baseline;
  font-size: 25px;
  line-height: 1;
  font-weight: 780;
  color: #172033;
}
.brand-word .ai { color: #2558ff; }
.nav-links { display: flex; align-items: center; gap: 26px; color: #435064; font-size: 14px; }
.nav-links a:hover { color: var(--brand-dark); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 6px;
  border: 1px solid transparent;
  padding: 0 18px;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
}
.button.primary { background: var(--brand); color: #fff; box-shadow: 0 10px 20px rgba(23, 107, 135, 0.18); }
.button.secondary { border-color: var(--line); color: var(--ink); background: #fff; }
.container { max-width: var(--max); margin: 0 auto; }
.hero {
  padding: 74px 28px 58px;
  background: linear-gradient(180deg, #ffffff 0%, #f7f9fb 100%);
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--green); }
.hero-copy { max-width: 760px; margin-top: 22px; font-size: 18px; color: #526074; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.section { padding: 64px 28px; }
.section.compact { padding: 52px 28px; }
section[id] { scroll-margin-top: 92px; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head p { margin-top: 14px; font-size: 16px; }
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.pillar-card {
  display: block;
  min-height: 210px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 22px rgba(23, 32, 51, 0.04);
}
.pillar-card span {
  display: block;
  color: var(--copper);
  font-size: 13px;
  font-weight: 850;
  margin-bottom: 24px;
}
.pillar-card h3 { margin-bottom: 12px; }
.pillar-card p { font-size: 14.5px; line-height: 1.65; }
.content-columns {
  display: grid;
  gap: 24px;
}
.content-column {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.column-head {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 34px;
  align-items: end;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.column-head p { font-size: 15.5px; }
.article-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 22px;
}
.article-card {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  min-height: 118px;
  padding: 20px 22px;
  border-radius: 8px;
  border: 1px solid #d7e5df;
  background: #f5faf7;
}
.article-meta {
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}
.article-card h3 { font-size: 23px; margin-bottom: 6px; }
.article-card p { font-size: 14.5px; line-height: 1.62; }
.article-card span:last-child {
  color: var(--brand-dark);
  font-size: 14px;
  font-weight: 850;
  white-space: nowrap;
}
.dark-band {
  background: #121a27;
  color: #fff;
  border-top: 1px solid #273247;
  border-bottom: 1px solid #273247;
}
.dark-band h2, .dark-band h3 { color: #fff; }
.dark-band p { color: #c8d2df; }
.watch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}
.watch-item {
  min-height: 160px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
}
.watch-item span {
  display: block;
  color: #e5b76b;
  font-size: 13px;
  font-weight: 850;
  margin-bottom: 18px;
}
.watch-item h3 { font-size: 18px; margin-bottom: 8px; }
.watch-item p { font-size: 13.5px; line-height: 1.62; }
.article-hero {
  padding: 72px 28px 44px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.article-shell {
  max-width: 860px;
  margin: 0 auto;
}
.back-link {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--brand-dark);
  font-size: 14px;
  font-weight: 800;
}
.article-kicker {
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.article-intro {
  margin-top: 20px;
  font-size: 19px;
  color: #526074;
}
.article-body {
  padding: 48px 28px 72px;
}
.article-body .article-shell {
  display: grid;
  gap: 22px;
}
.article-body p {
  font-size: 17px;
  line-height: 1.78;
}
.article-body h2 {
  margin-top: 18px;
  font-size: 30px;
}
.takeaway {
  margin-top: 12px;
  padding: 22px 24px;
  border-radius: 8px;
  border: 1px solid #cfe0d8;
  border-left: 4px solid var(--green);
  background: #f4faf7;
}
.takeaway strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 16px;
}
.takeaway ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.72;
  font-size: 15px;
}
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.article-nav a {
  color: var(--brand-dark);
  font-size: 14px;
  font-weight: 850;
}
.final-cta {
  padding: 58px 28px;
  background: var(--brand-dark);
  color: #fff;
}
.cta-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.final-cta h2 { color: #fff; max-width: 680px; }
.final-cta p { margin-top: 12px; color: #d9e6ec; max-width: 760px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.final-cta .button.primary { background: #fff; color: var(--brand-dark); box-shadow: none; }
.final-cta .button.secondary { border-color: rgba(255,255,255,0.32); color: #fff; background: transparent; }
.site-footer { background: #121a27; color: #d8e0ea; padding: 38px 28px; }
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
}
.footer-inner img { width: 154px; height: auto; display: block; }
.footer-inner p { margin-top: 12px; color: #aab5c3; max-width: 560px; font-size: 13px; }
.footer-links { display: flex; gap: 18px; color: #c7d1dd; font-size: 13px; }
@media (max-width: 980px) {
  .nav-links a:not(.button) { display: none; }
  .pillar-grid, .watch-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .column-head { grid-template-columns: 1fr; gap: 16px; }
  .article-card { grid-template-columns: 1fr; gap: 10px; }
  .cta-inner { display: grid; }
  h1 { font-size: 46px; }
  h2 { font-size: 32px; }
}
@media (max-width: 660px) {
  .nav { padding: 0 18px; min-height: 66px; }
  .brand { min-width: auto; }
  .brand-mark { width: 30px; height: 30px; flex-basis: 30px; }
  .brand-word { font-size: 22px; }
  .nav .button { min-height: 40px; padding: 0 12px; }
  .hero, .section, .section.compact, .final-cta, .article-hero, .article-body { padding-left: 18px; padding-right: 18px; }
  .hero { padding-top: 46px; padding-bottom: 42px; }
  h1 { font-size: 38px; line-height: 1.08; }
  h2 { font-size: 28px; }
  .hero-copy, .article-intro { font-size: 16px; }
  .hero-actions, .cta-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .pillar-grid, .watch-grid { grid-template-columns: 1fr; }
  .pillar-card, .content-column { padding: 22px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; }
}