:root {
  --ink: #172026;
  --muted: #5c6b73;
  --line: #dbe2e7;
  --bg: #f7f9fb;
  --panel: #ffffff;
  --brand: #116466;
  --accent: #d96c2c;
  --soft: #eaf4f2;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: Arial, Helvetica, sans-serif; line-height: 1.6; }
a { color: inherit; }
.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(760px, calc(100% - 32px)); }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; }
.skip-link:focus { left: 8px; z-index: 10; }
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.nav-wrap { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; }
.brand-mark { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 8px; color: #fff; background: var(--brand); font-size: 13px; }
nav { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; color: var(--muted); }
nav a { text-decoration: none; }
.hero, .article-hero { background: linear-gradient(180deg, #ffffff 0%, #eef6f4 100%); border-bottom: 1px solid var(--line); }
.hero-grid, .article-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: center; padding: 64px 0; }
.eyebrow { color: var(--brand); text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: 0; }
h1 { font-size: clamp(36px, 6vw, 62px); line-height: 1.02; margin: 8px 0 18px; letter-spacing: 0; max-width: 880px; }
h2 { font-size: 26px; line-height: 1.2; margin: 34px 0 12px; letter-spacing: 0; }
.lede { font-size: 19px; color: var(--muted); max-width: 760px; }
.disclosure { color: var(--muted); font-size: 14px; max-width: 760px; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 12px 18px; border-radius: 8px; background: var(--brand); color: #fff; font-weight: 800; text-decoration: none; border: 1px solid var(--brand); }
.button.secondary { background: #fff; color: var(--brand); }
.hero-visual { display: grid; gap: 14px; padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 16px 50px rgba(23,32,38,.08); }
.rank-card { min-height: 84px; display: grid; grid-template-columns: 44px 1fr; gap: 6px 14px; align-items: center; padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.rank-card span { grid-row: span 2; display: grid; place-items: center; width: 40px; height: 40px; background: var(--soft); border-radius: 8px; font-weight: 800; color: var(--brand); }
.rank-card em { color: var(--muted); font-style: normal; font-size: 14px; }
.rank-card.top { border-color: var(--brand); }
.section-heading { margin: 52px 0 20px; display: flex; justify-content: space-between; gap: 24px; align-items: end; }
.section-heading p { color: var(--muted); max-width: 560px; margin: 0; }
.intent-grid, .page-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.intent-card, .page-card { display: grid; gap: 8px; min-height: 132px; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; }
.intent-card span, .page-card span { color: var(--muted); font-size: 14px; }
.page-card strong, .intent-card strong { font-size: 18px; line-height: 1.25; }
.center { text-align: center; margin: 28px 0 56px; }
.page-title { padding: 54px 0 28px; background: #fff; border-bottom: 1px solid var(--line); }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 36px; align-items: start; margin-top: 36px; margin-bottom: 64px; }
.article-body { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 28px; }
.article-body p, .article-body li { color: #334047; }
.summary-panel, .toc, .offer-box { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 22px; }
.summary-panel h2 { margin-top: 0; }
.toc { position: sticky; top: 88px; display: grid; gap: 10px; }
.toc a { color: var(--muted); text-decoration: none; font-size: 14px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; background: #fff; min-width: 680px; }
th, td { text-align: left; padding: 13px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--soft); color: var(--brand); }
details { border-top: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 800; }
.site-footer { background: var(--ink); color: #fff; padding: 36px 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.footer-grid p { color: #c9d3d8; }
.footer-grid div:last-child { display: grid; gap: 8px; justify-items: end; }
.footer-grid a { color: #fff; text-decoration: none; }
@media (max-width: 820px) {
  .nav-wrap, .section-heading, .footer-grid { align-items: start; flex-direction: column; grid-template-columns: 1fr; }
  .hero-grid, .article-grid, .content-layout { grid-template-columns: 1fr; }
  .intent-grid, .page-grid { grid-template-columns: 1fr; }
  .toc { position: static; }
  h1 { font-size: 38px; }
  .footer-grid div:last-child { justify-items: start; }
}