:root {
  --seo-ink: #122033;
  --seo-muted: #536579;
  --seo-line: #d9e3ec;
  --seo-paper: #f6f9fc;
  --seo-navy: #08111f;
  --seo-blue: #155eef;
  --seo-cyan: #08b8c8;
  --seo-orange: #f07838;
  --seo-shadow: 0 18px 50px rgba(19, 43, 69, .10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--seo-ink);
  background: var(--seo-paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: inherit; }

.seo-skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: .65rem .9rem;
  color: #fff;
  background: var(--seo-navy);
  border-radius: .45rem;
}

.seo-skip-link:focus { top: 1rem; }

.seo-site-header {
  border-bottom: 1px solid rgba(217, 227, 236, .82);
  background: rgba(246, 249, 252, .92);
  backdrop-filter: blur(16px);
}

.seo-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  width: min(1160px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 1rem 0;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: var(--seo-navy);
  font-size: 1.02rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -.02em;
}

.seo-brand img { width: 32px; height: 32px; border-radius: 9px; }

.seo-nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--seo-muted);
  font-size: .84rem;
  font-weight: 650;
}

.seo-nav-links a { text-decoration: none; }
.seo-nav-links a:hover, .seo-nav-links a:focus-visible { color: var(--seo-blue); }

.seo-nav-cta {
  padding: .55rem .85rem;
  color: #fff !important;
  background: var(--seo-navy);
  border-radius: .45rem;
}

.seo-wrap { width: min(1160px, calc(100% - 2.5rem)); margin: 0 auto; }

.seo-breadcrumbs {
  padding-top: 1.4rem;
  color: #6a7c8d;
  font-size: .78rem;
}

.seo-breadcrumbs a { color: var(--seo-blue); text-decoration: none; }
.seo-breadcrumbs span { margin: 0 .4rem; }

.seo-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
  align-items: end;
  gap: 3rem;
  padding: 4.5rem 0 4rem;
}

.seo-eyebrow, .seo-label {
  display: block;
  margin-bottom: .8rem;
  color: var(--seo-orange);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.seo-hero h1 {
  max-width: 760px;
  margin: 0;
  color: var(--seo-navy);
  font-size: clamp(2.35rem, 5vw, 4.8rem);
  line-height: 1.03;
  letter-spacing: -.055em;
}

.seo-hero h1 em { color: var(--seo-blue); font-style: normal; }

.seo-lede {
  max-width: 720px;
  margin: 1.35rem 0 0;
  color: var(--seo-muted);
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
}

.seo-hero-aside {
  padding: 1.4rem;
  color: #e6f3f6;
  background: var(--seo-navy);
  border: 1px solid #25384e;
  border-radius: .9rem;
  box-shadow: var(--seo-shadow);
}

.seo-hero-aside strong { display: block; color: #fff; font-size: 1.05rem; }
.seo-hero-aside p { margin: .55rem 0 0; color: #b7cbd3; font-size: .9rem; }
.seo-hero-aside ul { margin: 1rem 0 0; padding-left: 1.1rem; color: #d6e6eb; font-size: .88rem; }

.seo-cta-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.7rem; }

.seo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: .72rem 1.1rem;
  border: 1px solid var(--seo-navy);
  border-radius: .48rem;
  color: #fff;
  background: var(--seo-navy);
  font-size: .9rem;
  font-weight: 750;
  text-decoration: none;
}

.seo-button:hover, .seo-button:focus-visible { background: #1d3652; }
.seo-button.secondary { color: var(--seo-navy); background: transparent; border-color: #aebfce; }
.seo-button.secondary:hover, .seo-button.secondary:focus-visible { color: var(--seo-blue); border-color: var(--seo-blue); background: #edf4ff; }

.seo-section { padding: 4.2rem 0; border-top: 1px solid var(--seo-line); }
.seo-section.tint { background: #edf4f8; }
.seo-section h2 { max-width: 760px; margin: 0; color: var(--seo-navy); font-size: clamp(1.8rem, 3vw, 2.7rem); line-height: 1.1; letter-spacing: -.04em; }
.seo-section > .seo-wrap > p { max-width: 750px; color: var(--seo-muted); }

.seo-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 2rem; }

.seo-card {
  padding: 1.35rem;
  background: #fff;
  border: 1px solid var(--seo-line);
  border-radius: .75rem;
  box-shadow: 0 8px 22px rgba(20, 47, 74, .045);
}

.seo-card h3 { margin: .25rem 0 .45rem; color: var(--seo-navy); font-size: 1.05rem; line-height: 1.2; }
.seo-card p { margin: 0; color: var(--seo-muted); font-size: .91rem; }
.seo-card-number { color: var(--seo-cyan); font: 800 .78rem/1 "Roboto Mono", ui-monospace, monospace; letter-spacing: .08em; }

.seo-two-col { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 3rem; align-items: start; }

.seo-list { margin: 1.4rem 0 0; padding: 0; list-style: none; }
.seo-list li { position: relative; padding: .75rem 0 .75rem 1.6rem; color: var(--seo-muted); border-top: 1px solid var(--seo-line); }
.seo-list li::before { content: "✓"; position: absolute; left: 0; color: var(--seo-blue); font-weight: 800; }

.seo-callout { padding: 1.6rem; background: #fff; border-left: 4px solid var(--seo-blue); border-radius: .15rem .75rem .75rem .15rem; box-shadow: var(--seo-shadow); }
.seo-callout h3 { margin: 0 0 .45rem; color: var(--seo-navy); }
.seo-callout p { margin: 0; color: var(--seo-muted); }

.seo-faq { max-width: 860px; margin-top: 1.6rem; }
.seo-faq details { padding: 1rem 0; border-top: 1px solid var(--seo-line); }
.seo-faq summary { cursor: pointer; color: var(--seo-navy); font-weight: 750; }
.seo-faq p { margin: .6rem 0 0; color: var(--seo-muted); }

.seo-related { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.5rem; }
.seo-related a { padding: .55rem .75rem; color: var(--seo-blue); background: #fff; border: 1px solid var(--seo-line); border-radius: .45rem; font-size: .88rem; font-weight: 700; text-decoration: none; }
.seo-related a:hover, .seo-related a:focus-visible { border-color: var(--seo-blue); background: #edf4ff; }

.seo-article { max-width: 820px; padding: 3.5rem 0 5rem; }
.seo-article h1 { margin: .25rem 0 1rem; color: var(--seo-navy); font-size: clamp(2.25rem, 5vw, 4rem); line-height: 1.05; letter-spacing: -.05em; }
.seo-article .seo-lede { margin-bottom: 1rem; }
.seo-byline { color: #718294; font-size: .82rem; }
.seo-article h2 { margin: 2.7rem 0 .65rem; color: var(--seo-navy); font-size: 1.65rem; line-height: 1.15; letter-spacing: -.025em; }
.seo-article h3 { margin: 1.8rem 0 .45rem; color: var(--seo-navy); font-size: 1.15rem; }
.seo-article p, .seo-article li { color: var(--seo-muted); }
.seo-article ul, .seo-article ol { padding-left: 1.35rem; }
.seo-article li { margin: .45rem 0; }
.seo-article strong { color: var(--seo-ink); }
.seo-article blockquote { margin: 1.6rem 0; padding: 1rem 1.2rem; color: var(--seo-navy); background: #eaf5f6; border-left: 4px solid var(--seo-cyan); }

.seo-footer { padding: 1.3rem 0 1.6rem; color: #718294; border-top: 1px solid var(--seo-line); font-size: .78rem; }
.seo-footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.seo-footer a { color: var(--seo-blue); text-decoration: none; }
.seo-version { color: #8090a1; font: 700 .7rem/1 "Roboto Mono", ui-monospace, monospace; letter-spacing: .06em; }

@media (max-width: 780px) {
  .seo-nav, .seo-wrap { width: min(100% - 1.35rem, 1160px); }
  .seo-nav-links a:not(.seo-nav-cta) { display: none; }
  .seo-hero { grid-template-columns: 1fr; gap: 1.5rem; padding: 3.2rem 0 3rem; }
  .seo-grid, .seo-two-col { grid-template-columns: 1fr; gap: 1rem; }
  .seo-section { padding: 3rem 0; }
  .seo-footer-inner { align-items: flex-start; flex-direction: column; }
}