/* RoutingRadar — authoritative navy + amber design system
 * Typography: Inter (body) + DM Serif Display (display headings)
 */
:root {
  --navy-950: #051427;
  --navy-900: #0a2540;
  --navy-800: #11304f;
  --navy-700: #1c4368;
  --navy-600: #2c5780;
  --navy-100: #e6ecf3;
  --navy-50:  #f3f6fa;

  --amber-600: #b45309;
  --amber-500: #d97706;
  --amber-400: #f59e0b;
  --amber-300: #fbbf24;
  --amber-100: #fef3c7;
  --amber-50:  #fffbeb;

  --ink: var(--navy-900);
  --ink-soft: #2f4055;
  --muted: #5e7290;
  --line: #dde4ec;
  --line-strong: #c8d2dd;
  --bg: #fafbfd;
  --surface: #ffffff;
  --surface-tint: #f6f8fb;

  --primary: var(--navy-900);
  --primary-dark: var(--navy-950);
  --accent: var(--amber-400);
  --accent-strong: var(--amber-500);

  --radius: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(10,37,64,.06);
  --shadow-md: 0 4px 14px rgba(10,37,64,.08);
  --shadow-lg: 0 14px 40px rgba(10,37,64,.14);

  --maxw: 1200px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --serif: "DM Serif Display", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=DM+Serif+Display:ital@0;1&family=JetBrains+Mono:wght@400;500;600&display=swap");

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--navy-700); text-decoration: none; }
a:hover { color: var(--navy-900); text-decoration: underline; text-underline-offset: 3px; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.muted { color: var(--muted); }

h1, h2, h3, h4 { color: var(--ink); margin: 0 0 .45em; line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 4vw, 2.6rem); letter-spacing: -0.015em; }
h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 1.85rem); letter-spacing: -0.01em; }
h3 { font-family: var(--sans); font-size: 1.18rem; font-weight: 700; }
h4 { font-family: var(--sans); font-size: 0.95rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--navy-700); }
p { margin: 0 0 1em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
code, .mono, .rn { font-family: var(--mono); }

/* HEADER */
.site-header {
  background: var(--navy-900);
  color: #fff;
  border-bottom: 3px solid var(--amber-400);
  position: sticky; top: 0; z-index: 50;
}
.header-inner {
  display: flex; align-items: center; gap: 28px;
  padding: 14px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  color: #fff; font-weight: 700; font-size: 1.25rem; text-decoration: none;
}
.brand:hover { text-decoration: none; color: #fff; }
.brand-mark {
  color: var(--amber-400); display: inline-flex;
  background: rgba(255,255,255,.08); border-radius: 10px; padding: 6px;
}
.brand-name {
  font-family: var(--serif); font-weight: 400; letter-spacing: -0.02em;
  font-size: 1.4rem;
}
.brand-name em { color: var(--amber-400); font-style: normal; }
.nav { display: flex; gap: 22px; margin-left: 12px; }
.nav a {
  color: #d6dde6; font-weight: 500; font-size: .96rem;
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.nav a:hover { color: #fff; border-color: var(--amber-400); text-decoration: none; }
.header-search {
  margin-left: auto; display: flex;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-pill); padding: 4px 4px 4px 16px; align-items: center; min-width: 320px;
}
.header-search input {
  border: 0; outline: none; background: transparent; color: #fff;
  flex: 1; font: inherit; padding: 6px 6px;
}
.header-search input::placeholder { color: #b5c0cf; }
.header-search button {
  background: var(--amber-400); color: var(--navy-900); border: 0;
  width: 36px; height: 36px; border-radius: var(--radius-pill);
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
  transition: background .15s ease;
}
.header-search button:hover { background: var(--amber-300); }

/* HERO */
.hero {
  background:
    radial-gradient(1200px 500px at 80% -120px, rgba(245,158,11,.18) 0%, transparent 60%),
    radial-gradient(900px 460px at 0% 0%, rgba(28,67,104,.55) 0%, transparent 70%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: #fff;
  padding: 80px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 70px;
  background: linear-gradient(180deg, transparent, var(--bg) 90%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; position: relative; z-index: 1; }
.hero h1 {
  color: #fff; font-size: clamp(2.2rem, 4.6vw, 3.4rem);
  letter-spacing: -0.025em; line-height: 1.1; margin-bottom: .3em;
}
.hero h1 em { color: var(--amber-400); font-style: normal; }
.hero .lede { font-size: 1.18rem; color: #d6dde8; max-width: 50ch; margin-bottom: 30px; }

.hero-search-wrap { background: #fff; padding: 14px; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.hero-search { display: flex; gap: 0; }
.hero-search input {
  flex: 1; padding: 16px 22px; border-radius: var(--radius) 0 0 var(--radius);
  border: 1px solid var(--line); border-right: 0;
  font-size: 1.05rem; background: #fff; color: var(--ink);
  font-family: var(--mono); letter-spacing: .02em;
}
.hero-search input:focus { outline: 2px solid var(--amber-400); outline-offset: -1px; border-color: var(--amber-400); }
.hero-search button {
  padding: 0 26px; background: var(--amber-400); color: var(--navy-900);
  border: 0; border-radius: 0 var(--radius) var(--radius) 0;
  font-weight: 700; font-size: 1rem; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background .15s ease;
}
.hero-search button:hover { background: var(--amber-300); }
.hero-search-hint {
  color: var(--muted); font-size: .85rem; margin: 12px 0 0; padding: 0 6px;
  display: flex; align-items: center; gap: 8px;
}
.hero-search-hint span { color: var(--navy-700); font-weight: 600; }

.hero-stats {
  margin-top: 32px; display: grid; grid-template-columns: repeat(3, auto);
  gap: 32px; color: #d6dde8; font-size: .92rem;
}
.hero-stats > div { padding-right: 30px; border-right: 1px solid rgba(255,255,255,.14); }
.hero-stats > div:last-child { border-right: 0; }
.hero-stats strong {
  color: #fff; font-size: 1.55rem; display: block; font-family: var(--serif); font-weight: 400;
  line-height: 1.1;
}

.hero-art { display: flex; justify-content: center; }
.hero-art img { max-width: 100%; height: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }

.trust-bar {
  background: var(--navy-50); border-bottom: 1px solid var(--line);
  padding: 18px 0; margin-top: -1px;
}
.trust-bar-inner {
  display: flex; gap: 28px; flex-wrap: wrap; align-items: center;
  color: var(--ink-soft); font-size: .9rem;
}
.trust-bar-inner > span { display: inline-flex; align-items: center; gap: 8px; }
.trust-bar-inner svg { color: var(--amber-500); }

/* SECTIONS */
.section { padding: 64px 0; }
.section h2 { font-size: clamp(1.55rem, 2.4vw, 1.95rem); margin-bottom: .25em; }
.section .section-lead { color: var(--ink-soft); margin-bottom: 32px; max-width: 65ch; font-size: 1.04rem; }
.section.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: .12em;
  font-size: .75rem; font-weight: 700; color: var(--amber-600);
  margin-bottom: 14px;
}

/* CARDS */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 20px 18px;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  display: flex; flex-direction: column; gap: 6px;
  position: relative;
}
.card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-md);
  text-decoration: none; border-color: var(--navy-100);
}
.card .card-title { font-weight: 700; color: var(--ink); font-size: 1.02rem; line-height: 1.3; }
.card .card-meta { color: var(--muted); font-size: .9rem; }
.card .card-rn {
  font-family: var(--mono); color: var(--navy-700); font-size: 1.05rem;
  letter-spacing: .04em; font-weight: 600;
}
.card-accent::before {
  content: ''; position: absolute; left: 0; top: 14px; bottom: 14px; width: 3px;
  background: var(--amber-400); border-radius: 0 3px 3px 0;
}
.card-accent { padding-left: 24px; }

/* TABLES */
.table-wrap {
  overflow-x: auto; border: 1px solid var(--line);
  border-radius: var(--radius); background: #fff;
}
table.data { width: 100%; border-collapse: collapse; font-size: .94rem; }
table.data th, table.data td {
  text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data tr:last-child td { border-bottom: 0; }
table.data thead th {
  background: var(--navy-50); font-weight: 700; color: var(--navy-900);
  font-size: .78rem; text-transform: uppercase; letter-spacing: .06em;
  border-bottom: 2px solid var(--line-strong);
}
table.data tr:hover td { background: var(--surface-tint); }
.rn { font-family: var(--mono); letter-spacing: .03em; font-weight: 500; }
table.data .rn { color: var(--navy-700); font-weight: 600; }

/* PILLS */
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.pill {
  background: var(--navy-50); color: var(--navy-800);
  border-radius: var(--radius-pill); padding: 5px 13px;
  font-size: .82rem; font-weight: 600;
  border: 1px solid var(--navy-100);
}
.pill.alt { background: var(--amber-50); color: var(--amber-600); border-color: var(--amber-100); }
.pill.warn { background: #fff3e1; color: #a85b00; border-color: #fde4b6; }
.pill.dark { background: var(--navy-900); color: #fff; border-color: var(--navy-900); }

/* BREADCRUMBS */
.breadcrumbs { color: var(--muted); font-size: .88rem; margin: 0 0 22px; }
.breadcrumbs a { color: var(--navy-700); }
.breadcrumbs span { margin: 0 8px; color: var(--line-strong); }

/* CONTENT LAYOUT */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; align-items: start; }
.aside { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 80px; }
.aside .box {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
}
.aside .box h4 { color: var(--navy-900); margin-bottom: 12px; }
.aside .box ul { padding: 0; margin: 0; list-style: none; }
.aside .box ul li { margin-bottom: 8px; padding-left: 14px; position: relative; }
.aside .box ul li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--amber-400);
}
.aside .box ul li a { color: var(--navy-800); font-weight: 500; font-size: .94rem; }
.aside .box.editorial { background: linear-gradient(180deg, var(--navy-50), #fff); border-color: var(--navy-100); }
.aside .box.editorial h4 {
  font-size: .8rem; color: var(--amber-600); letter-spacing: .12em;
  border-bottom: 1px solid var(--line); padding-bottom: 10px; margin-bottom: 14px;
}
.aside .box.editorial li::before { background: var(--navy-700); }
.aside .box.editorial .editorial-link {
  display: block; padding: 10px 0; border-bottom: 1px solid var(--line);
  color: var(--ink); font-weight: 600; font-size: .96rem;
}
.aside .box.editorial .editorial-link:last-child { border-bottom: 0; }
.aside .box.editorial .editorial-link small {
  display: block; color: var(--muted); font-weight: 400; font-size: .82rem; margin-top: 2px;
}

/* DETAIL BLOCKS */
.factsheet {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 28px 30px;
  margin-bottom: 26px;
  border-top: 4px solid var(--amber-400);
  position: relative;
}
.factsheet h2 { margin-top: 0; font-size: 1.5rem; }
.factsheet .rn-big {
  font-family: var(--mono); font-size: 2.5rem; letter-spacing: .04em;
  color: var(--navy-900); font-weight: 600; line-height: 1.1;
  margin: 4px 0;
}
.factsheet dl {
  display: grid; grid-template-columns: 200px 1fr;
  gap: 12px 24px; margin: 18px 0 0;
  border-top: 1px solid var(--line); padding-top: 18px;
}
.factsheet dt {
  color: var(--muted); font-size: .85rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .04em;
}
.factsheet dd { margin: 0; color: var(--ink); font-size: 1rem; }

/* ALPHA NAV */
.alpha-nav { display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 28px; }
.alpha-nav a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--ink);
  font-weight: 700; font-size: .92rem;
  transition: all .12s ease;
}
.alpha-nav a:hover { border-color: var(--navy-700); color: var(--navy-900); text-decoration: none; }
.alpha-nav a.active {
  background: var(--navy-900); color: #fff; border-color: var(--navy-900);
}

/* CONTENT PROSE */
.prose {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 36px 40px;
}
.prose p { font-size: 1.04rem; color: var(--ink-soft); }
.prose h2 { margin-top: 1.6em; color: var(--navy-900); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.4em; color: var(--navy-800); }
.prose ul, .prose ol { padding-left: 22px; }
.prose ul li, .prose ol li { margin-bottom: .4em; color: var(--ink-soft); }
.prose blockquote {
  border-left: 3px solid var(--amber-400); margin: 1.4em 0;
  padding: .6em 1.2em; background: var(--amber-50);
  color: var(--ink-soft); border-radius: 0 var(--radius) var(--radius) 0;
}
.prose strong { color: var(--ink); }

/* FOOTER */
.site-footer {
  background: var(--navy-950); color: #b8c4d4;
  margin-top: 80px; padding: 60px 0 26px;
  border-top: 4px solid var(--amber-400);
}
.site-footer h4 { color: #fff; font-size: .82rem; margin-bottom: 14px; letter-spacing: .12em; }
.site-footer .footer-brand {
  color: #fff; font-family: var(--serif); font-size: 1.5rem; margin-bottom: 10px;
}
.site-footer .footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 40px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #b8c4d4; font-size: .94rem; }
.site-footer a:hover { color: var(--amber-400); text-decoration: none; }
.site-footer .footer-resources a {
  display: block; padding: 6px 0; border-bottom: 1px solid #1a2e47;
  font-weight: 500;
}
.site-footer .footer-resources a:last-child { border-bottom: 0; }
.site-footer .footer-bottom {
  margin-top: 36px; padding-top: 22px; border-top: 1px solid #1a2e47;
  color: #6c7c93; font-size: .85rem;
  display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between;
}

/* MISC */
.notice {
  background: var(--amber-50); border: 1px solid var(--amber-100);
  color: var(--amber-600); padding: 14px 18px; border-radius: var(--radius);
  margin: 16px 0; font-size: .95rem;
}
.tag-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }

.callout {
  background: linear-gradient(135deg, var(--navy-50) 0%, #fff 100%);
  border: 1px solid var(--navy-100); border-left: 4px solid var(--navy-700);
  border-radius: var(--radius); padding: 20px 24px; margin: 24px 0;
}
.callout strong { color: var(--navy-900); }
.callout.amber { border-left-color: var(--amber-500); background: linear-gradient(135deg, var(--amber-50) 0%, #fff 100%); }

.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px; margin: 24px 0;
}
.kpi {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px;
}
.kpi .kpi-label {
  color: var(--muted); font-size: .8rem; text-transform: uppercase;
  letter-spacing: .08em; font-weight: 600;
}
.kpi .kpi-value {
  font-family: var(--serif); font-size: 1.7rem; color: var(--navy-900);
  margin-top: 4px;
}
.kpi.amber { border-top: 3px solid var(--amber-400); }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius);
  background: var(--navy-900); color: #fff; font-weight: 600;
  border: 0; cursor: pointer; font-family: var(--sans); font-size: .96rem;
}
.btn:hover { background: var(--navy-800); color: #fff; text-decoration: none; }
.btn.amber { background: var(--amber-400); color: var(--navy-900); }
.btn.amber:hover { background: var(--amber-300); color: var(--navy-900); }
.btn.ghost { background: transparent; color: var(--navy-900); border: 1px solid var(--line-strong); }
.btn.ghost:hover { background: var(--navy-50); }

@media (max-width: 980px) {
  .hero { padding: 56px 0 70px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-art { display: none; }
  .layout { grid-template-columns: 1fr; }
  .aside { position: static; }
  .header-search { display: none; }
  .nav { gap: 14px; }
  .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .container { padding: 0 18px; }
  .header-inner { flex-wrap: wrap; padding: 12px 18px; gap: 14px; }
  .nav { width: 100%; justify-content: space-around; gap: 0; }
  .hero { padding: 42px 0 56px; }
  .hero-stats { grid-template-columns: 1fr; gap: 12px; }
  .hero-stats > div { border-right: 0; padding-right: 0; }
  .hero-search input { padding: 13px 14px; font-size: .96rem; }
  .hero-search button { padding: 0 18px; }
  .factsheet { padding: 22px; }
  .factsheet .rn-big { font-size: 1.9rem; }
  .factsheet dl { grid-template-columns: 1fr; gap: 4px; padding-top: 14px; }
  .factsheet dt { margin-top: 8px; }
  .prose { padding: 24px 22px; }
  .site-footer .footer-grid { grid-template-columns: 1fr; }
}

/* Hero search wrapper + hint */
.hero-search-wrap { margin-top: 22px; }
.hero-search-hint { margin: 10px 2px 0; font-size: .88rem; color: rgba(255,255,255,.65); letter-spacing: .01em; }
.hero-search-hint span { color: var(--amber-300); font-weight: 600; margin-right: 6px; text-transform: uppercase; font-size: .76rem; letter-spacing: .08em; }

/* Editorial / sponsored sidebar boxes */
.box.editorial { background: linear-gradient(180deg, #fff 0%, #fffaf0 100%); border: 1px solid #f0d9a8; }
.box.editorial h4 { color: #8a5a14; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.editorial-link {
  display: block;
  padding: 12px 14px;
  margin: 8px -4px 0;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #f3e2bd;
  color: var(--navy-900);
  font-weight: 600;
  font-size: .96rem;
  line-height: 1.3;
  text-decoration: none;
  transition: background .15s, border-color .15s, transform .15s;
}
.editorial-link:hover { background: #fff8e8; border-color: var(--amber-400, #e0a93a); transform: translateY(-1px); }
.editorial-link small { display: block; margin-top: 4px; font-weight: 400; font-size: .82rem; color: var(--muted, #6b7280); }