:root {
  --bg: #ffffff;
  --paper: #f4f6f8;
  --ink: #1c2430;
  --muted: #5b6573;
  --line: #e4e7eb;
  --navy: #0b3d7a;
  --navy-2: #0a3264;
  --link: #0b3d7a;
  --ok: #0f6b3a;
  --max: 1080px;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html { font-size: 17px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}
a { color: var(--link); }
a:hover { color: var(--navy-2); }
.wrap { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.mast {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.mast-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  flex-wrap: wrap;
}
.wordmark { display: flex; flex-direction: column; line-height: 1.15; text-decoration: none; color: var(--navy); }
.wm-kicker { font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.wordmark strong { font-size: 1.2rem; }
.nav { display: flex; gap: 14px; flex-wrap: wrap; margin-left: auto; font-size: 0.92rem; }
.nav a { text-decoration: none; color: var(--ink); }
.nav a:hover { color: var(--navy); }
.nav-toggle {
  display: none;
  margin-left: auto;
  background: #fff;
  border: 1px solid var(--line);
  padding: 8px 12px;
  font: inherit;
}
.nav-search { display: flex; gap: 0; flex: 1; min-width: 200px; max-width: 420px; margin-left: 12px; }
.nav-search input {
  flex: 1;
  border: 1px solid var(--line);
  border-right: 0;
  padding: 8px 10px;
  font: inherit;
  background: var(--paper);
}
.nav-search button {
  background: var(--navy);
  color: #fff;
  border: 0;
  padding: 8px 14px;
  font: inherit;
  cursor: pointer;
}
.hero { padding: 36px 0 20px; border-bottom: 1px solid var(--line); }
.eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  margin: 0 0 8px;
}
h1 { color: var(--navy); font-size: clamp(1.55rem, 3.5vw, 2.15rem); line-height: 1.2; margin: 0 0 12px; }
h2 { color: var(--navy); font-size: 1.25rem; margin: 1.4rem 0 0.5rem; }
.lede { font-size: 1.05rem; max-width: 46rem; color: #2a3340; }
.muted { color: var(--muted); }
.page { padding: 24px 0 56px; }
.section { padding: 8px 0 28px; }
.crumbs { font-size: 0.85rem; color: var(--muted); margin-bottom: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.brands { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; }
.brands a, .card, .type-row {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-decoration: none;
  color: inherit;
}
.brands a:hover, .card:hover, .type-row:hover { border-color: var(--navy); }
.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin: 16px 0; }
.facts div { border: 1px solid var(--line); background: var(--paper); padding: 10px 12px; }
.facts dt { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.facts dd { margin: 4px 0 0; font-weight: 600; }
.sheet { overflow-x: auto; margin: 12px 0 22px; border: 1px solid var(--line); }
.sheet table { width: 100%; border-collapse: collapse; }
.sheet th, .sheet td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--line); }
.sheet th { background: var(--paper); color: var(--navy); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
.btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  padding: 9px 14px;
  margin: 6px 8px 6px 0;
}
.btn.ghost { background: #fff; color: var(--navy); border: 1px solid var(--navy); }
.faq details { border: 1px solid var(--line); margin: 0 0 8px; padding: 10px 14px; background: #fff; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy); }
.prose p, .prose li { max-width: 46rem; }
.prose ul, .prose ol { padding-left: 1.2rem; }
.callout { background: var(--paper); border-left: 4px solid var(--navy); padding: 12px 14px; margin: 16px 0; }
.types { display: flex; flex-direction: column; gap: 6px; }
.pager { margin-top: 18px; }
.glossary dt { color: var(--navy); font-weight: 700; margin-top: 12px; }
.glossary dd { margin: 4px 0 0; }
.big-num { font-size: 1.8rem; color: var(--navy); font-weight: 700; }
.colo { background: var(--paper); border-top: 1px solid var(--line); padding: 28px 0 16px; font-size: 0.92rem; }
.colo h2 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 8px; }
.colo-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 18px; }
.colo ul { list-style: none; margin: 0; padding: 0; }
.colo li { margin: 0 0 6px; }
.footer-end { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 10px; color: var(--muted); }
.guides { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.search-box { display: flex; gap: 0; max-width: 520px; margin: 12px 0 8px; }
.search-box input { flex: 1; padding: 10px 12px; border: 1px solid var(--line); font: inherit; }
.search-box button { background: var(--navy); color: #fff; border: 0; padding: 10px 16px; font: inherit; cursor: pointer; }
@media (max-width: 860px) {
  .grid-2, .grid-3, .facts, .colo-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-block; }
  .nav { display: none; width: 100%; flex-direction: column; gap: 8px; }
  .nav.is-open { display: flex; }
  .nav-search { max-width: none; margin-left: 0; order: 5; width: 100%; }
}