:root {
  --navy: #0b1d2a;
  --navy2: #153246;
  --ink: #17232d;
  --muted: #4b5a66;
  --line: #dce3e8;
  --soft: #f4f6f8;
  --accent: #b08a49;
  --accent2: #87672f;
  --max: 1180px;
  --radius: 7px;
  --shadow: 0 14px 35px rgba(11, 29, 42, 0.08);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.68;
}
a {
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
.container {
  width: min(calc(100% - 40px), var(--max));
  margin: auto;
}
.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 20px;
  top: 20px;
  z-index: 9999;
  background: var(--navy);
  color: #fff;
  padding: 10px 14px;
}
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  margin: 0;
  border-radius: 0;
  z-index: 1000;
  background: rgba(20, 58, 44, 0.92);
  border-bottom: 1px solid rgba(168, 224, 106, 0.18);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.24);
  transition: background 300ms ease, border-color 300ms ease;
}
.navbar {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand img,
.brand-mark,
.home-brand-badge {
  width: 44px;
  height: 44px;
  display: block;
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
  border: 1.5px solid rgba(168, 224, 106, 0.35);
  flex: 0 0 44px;
  object-fit: contain;
  padding: 2px;
  box-sizing: border-box;
}
.brand-text strong {
  display: block;
  color: #ffffff;
  font-size: 0.96rem;
  letter-spacing: -0.01em;
}
.brand-text span {
  display: block;
  color: rgba(215, 240, 225, 0.72);
  font-size: 0.72rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav-group {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 0;
}
.nav-links a,
.nav-trigger {
  position: relative;
  border: 0;
  background: transparent;
  box-shadow: none;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  color: #e6f4ec;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  padding: 8px 0;
  transition: color 200ms ease;
}
.nav-trigger::after {
  display: none !important;
  content: "" !important;
}
.nav-links a:hover,
.nav-links a:focus-visible,
.nav-trigger:hover,
.nav-trigger:focus-visible,
.nav-group:hover .nav-trigger,
.nav-group.is-open .nav-trigger {
  color: #a8e06a;
}
.nav-links a[aria-current="page"],
.nav-group.is-current .nav-trigger {
  color: #c8ff54;
  font-weight: 700;
}
.nav-links a::after,
.nav-group::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #a8e06a;
  box-shadow: 0 0 8px rgba(168, 224, 106, 0.6);
  transition: width 220ms cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 2px;
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-group:hover::after,
.nav-group.is-open::after {
  width: 100%;
}
.nav-links a[aria-current="page"]::after,
.nav-group.is-current::after {
  width: 100%;
  background: #c8ff54;
}
.nav-links .nav-search {
  border: 1px solid rgba(168, 224, 106, 0.35);
  background: rgba(14, 45, 34, 0.5);
  padding: 5px 12px;
  border-radius: 20px;
  color: #b7d83d;
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
}
.nav-links .nav-search::after {
  display: none !important;
}
.nav-links .nav-search:hover,
.nav-links .nav-search:focus-visible {
  background: rgba(168, 224, 106, 0.22);
  border-color: rgba(168, 224, 106, 0.7);
  color: #ffffff;
}
.nav-links .nav-search kbd {
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 800;
  opacity: 0.85;
  margin-left: 6px;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  line-height: 1.2;
  color: #e6f4ec;
}
.menu-toggle {
  display: none;
  border: 1px solid rgba(168, 224, 106, 0.35);
  background: rgba(14, 45, 34, 0.7);
  color: #ffffff;
  padding: 8px 13px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  transition: all 0.2s ease;
}
.menu-toggle:hover {
  background: rgba(168, 224, 106, 0.2);
  border-color: rgba(168, 224, 106, 0.6);
  color: #a8e06a;
}
.hero {
  background: linear-gradient(135deg, #091923, #163449);
  color: #fff;
  padding: 108px 0 96px;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.72rem;
  font-weight: 850;
  color: var(--accent);
}
.hero h1 {
  max-width: 900px;
  margin: 16px 0 20px;
  font-size: clamp(2.65rem, 6vw, 5.3rem);
  line-height: 1.02;
  letter-spacing: -0.058em;
}
.hero p {
  max-width: 740px;
  margin: 0;
  color: #d9e3ea;
  font-size: 1.1rem;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 17px;
  border-radius: 6px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 800;
  font-size: 0.88rem;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent2);
}
.btn-outline {
  border-color: #7f94a4;
  color: #fff;
  background: transparent;
}
.btn-outline:hover {
  border-color: #fff;
}
.btn-dark {
  background: var(--navy);
  color: #fff;
}
.btn-ghost {
  border-color: var(--line);
  color: var(--navy);
  background: #fff;
}
.section {
  padding: 82px 0;
}
.section-soft {
  background: var(--soft);
}
.section-dark {
  background: var(--navy);
  color: #fff;
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 30px;
  margin-bottom: 30px;
}
.section-head h2 {
  margin: 5px 0 0;
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  letter-spacing: -0.04em;
}
.section-head p {
  max-width: 590px;
  color: var(--muted);
  margin: 0;
}
.grid {
  display: grid;
  gap: 20px;
}
.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 25px;
  background: #fff;
}
.card:hover {
  box-shadow: var(--shadow);
}
.card h3 {
  margin: 8px 0;
  line-height: 1.25;
}
.card p {
  color: var(--muted);
  margin: 0;
}
.card-link {
  text-decoration: none;
  display: block;
  height: 100%;
}
.card-meta {
  color: var(--accent2);
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 850;
}
.feature {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.feature-main {
  padding: 46px;
}
.feature-side {
  background: var(--navy);
  color: #fff;
  padding: 38px;
}
.feature-side p {
  color: #cbd7e1;
}
.page-hero {
  background: var(--soft);
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 {
  margin: 8px 0 12px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  letter-spacing: -0.05em;
  line-height: 1.05;
}
.page-hero p {
  max-width: 800px;
  color: var(--muted);
  font-size: 1.08rem;
}
.content {
  max-width: 830px;
}
.content h2 {
  margin-top: 48px;
  font-size: 1.8rem;
}
.content h3 {
  margin-top: 32px;
}
.content p {
  color: #40505e;
}
.content li {
  margin-bottom: 8px;
}
.callout {
  border-left: 4px solid var(--accent);
  background: var(--soft);
  padding: 20px 22px;
  margin: 28px 0;
}
.badge {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  background: #f0e8d8;
  color: var(--accent2);
  font-size: 0.7rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat {
  padding: 24px;
  border-right: 1px solid var(--line);
}
.stat:last-child {
  border-right: 0;
}
.stat strong {
  display: block;
  font-size: 1.5rem;
  color: var(--navy);
}
.stat span {
  color: var(--muted);
  font-size: 0.84rem;
}
.breadcrumbs {
  font-size: 0.78rem;
  color: #b9c7d3;
  margin-bottom: 18px;
}
.breadcrumbs a {
  text-decoration: none;
}
.paper-header {
  background: var(--navy);
  color: #fff;
  padding: 82px 0;
}
.paper-header h1 {
  max-width: 900px;
  font-size: clamp(2.5rem, 5.5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.055em;
  margin: 12px 0;
}
.paper-header p {
  max-width: 780px;
  color: #d2dee6;
  font-size: 1.08rem;
}
.paper-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 28px;
  color: #c3d0d9;
  font-size: 0.83rem;
}
.paper-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 48px;
  align-items: start;
}
.paper-layout > article,
.paper-layout > .prose-wide {
  min-width: 0;
  max-width: 100%;
}
.toc {
  position: sticky;
  top: 110px;
  height: max-content;
  border-left: 2px solid var(--line);
  padding-left: 20px;
}
.toc strong {
  display: block;
  margin-bottom: 10px;
}
.toc a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.84rem;
  margin: 8px 0;
}
.toc a:hover {
  color: var(--navy);
}
.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 7px;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 650px;
}
.data-table th,
.data-table td {
  padding: 13px 15px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.data-table th {
  background: var(--soft);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.number {
  font-variant-numeric: tabular-nums;
}
.search-box {
  display: flex;
  gap: 10px;
  margin-bottom: 25px;
}
.search-box input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  font: inherit;
}
.site-footer {
  background: var(--navy);
  color: #fff;
  padding: 55px 0 25px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 35px;
}
.site-footer p,
.site-footer a {
  color: #b9c7d3;
}
.site-footer a {
  text-decoration: none;
}
.site-footer a:hover {
  color: #fff;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin: 8px 0;
}
.footer-bottom {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid #2d4255;
  color: #93a6b6;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  gap: 20px;
}
.center {
  text-align: center;
}
.muted {
  color: var(--muted);
}
.mt-2 {
  margin-top: 20px;
}
.mt-3 {
  margin-top: 35px;
}
.mt-4 {
  margin-top: 50px;
}
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    left: 20px;
    right: 20px;
    top: 68px;
    background: #0e2d22;
    border: 1px solid rgba(168, 224, 106, 0.22);
    border-radius: 12px;
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
    z-index: 1000;
  }
  .nav-links.is-open {
    display: flex;
  }
  .nav-links a,
  .nav-trigger {
    padding: 10px 12px;
    color: #ffffff;
    font-weight: 700;
  }
  .nav-links a:hover,
  .nav-links a:focus-visible,
  .nav-trigger:hover,
  .nav-trigger:focus-visible {
    background: rgba(168, 224, 106, 0.18);
    color: #c8ff54;
  }
  .menu-toggle {
    display: block;
  }
  .grid-4,
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
  .feature {
    grid-template-columns: 1fr;
  }
  .paper-layout {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 28px !important;
  }
  .paper-layout > article,
  .paper-layout > .prose-wide {
    min-width: 0 !important;
    width: 100% !important;
  }
  .toc {
    position: static;
  }
  .stat-strip {
    grid-template-columns: 1fr 1fr;
  }
  .stat:nth-child(2) {
    border-right: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 620px) {
  .container {
    width: min(calc(100% - 28px), var(--max));
  }
  .hero {
    padding: 78px 0 72px;
  }
  .section {
    padding: 60px 0;
  }
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .feature-main,
  .feature-side {
    padding: 28px;
  }
  .paper-header {
    padding: 62px 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
  }
}

/* Standardized brand marks */
.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  border: 1.5px solid rgba(168, 224, 106, 0.35);
  padding: 2px;
  box-sizing: border-box;
}
.footer-logo {
  width: 84px;
  height: 84px;
  display: block;
  background: #fff;
  border-radius: 8px;
  border: 1.5px solid rgba(168, 224, 106, 0.25);
  margin-bottom: 14px;
  object-fit: contain;
  padding: 4px;
  box-sizing: border-box;
}
.hero {
  position: relative;
  overflow: hidden;
}
.hero:after {
  content: "";
  position: absolute;
  inset: auto -10% -65% 45%;
  height: 500px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  transform: rotate(-12deg);
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 7px 11px;
  border-radius: 999px;
  color: #d9e3ea;
  font-size: 0.75rem;
  font-weight: 800;
}
.hero h1 strong {
  color: #e4c27c;
}
.hero-note {
  margin-top: 20px;
  font-size: 0.82rem;
  color: #9fb2c0;
}
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}
.quick-grid a {
  padding: 23px;
  text-decoration: none;
  border-right: 1px solid var(--line);
}
.quick-grid a:last-child {
  border-right: 0;
}
.quick-grid strong {
  display: block;
  font-size: 1rem;
  color: var(--navy);
}
.quick-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 5px;
}
.highlight {
  background: linear-gradient(135deg, #f8f2e7, #fff);
  border: 1px solid #eadfc9;
  border-radius: 8px;
  padding: 32px;
}
.fact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.fact {
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  padding: 19px;
  background: #fff;
}
.fact strong {
  display: block;
  font-size: 1.65rem;
  color: var(--navy);
}
.fact span {
  color: var(--muted);
  font-size: 0.82rem;
}
.source-card {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}
.source-card small {
  color: var(--muted);
}
.source-card a {
  color: var(--accent2);
}
.search-results .card {
  margin-bottom: 12px;
}
.sticky-actions {
  position: sticky;
  bottom: 15px;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  display: flex;
  gap: 9px;
  justify-content: center;
  box-shadow: var(--shadow);
}
.disclaimer {
  font-size: 0.76rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin-top: 35px;
}
.prose-wide {
  max-width: 960px;
}
.prose-wide p {
  color: #40505e;
}
.prose-wide h2 {
  margin-top: 45px;
}
.prose-wide h3 {
  margin-top: 30px;
}
@media (max-width: 900px) {
  .quick-grid {
    grid-template-columns: 1fr 1fr;
  }
  .quick-grid a:nth-child(2) {
    border-right: 0;
  }
  .quick-grid a {
    border-bottom: 1px solid var(--line);
  }
  .fact-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 620px) {
  .quick-grid,
  .fact-grid {
    grid-template-columns: 1fr;
  }
  .quick-grid a {
    border-right: 0;
  }
  .brand-text span {
    display: none;
  }
}

/* Phase 5 institutional components */
.card h3 {
  letter-spacing: -0.02em;
}
.section-soft .card {
  background: #fff;
}
.prose-wide .grid {
  margin: 26px 0;
}
.prose-wide a:not(.btn) {
  color: var(--accent2);
  font-weight: 700;
}
.prose-wide ul {
  padding-left: 22px;
}
.prose-wide li::marker {
  color: var(--accent);
}
.archive-label {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 800;
}

/* Global navigation enhancement: progressive, keyboard-friendly dropdowns. */
.nav-menu {
  position: absolute;
  z-index: 1100;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  display: none;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 8px;
  background: rgba(248, 252, 249, 0.98);
  border: 1px solid rgba(14, 45, 34, 0.14);
  border-radius: 12px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
}
.nav-menu::after {
  content: "";
  position: absolute;
  top: -14px;
  left: -10px;
  right: -10px;
  height: 18px;
  background: transparent;
}
.nav-menu::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 10px;
  height: 10px;
  background: rgba(248, 252, 249, 0.98);
  border-left: 1px solid rgba(14, 45, 34, 0.14);
  border-top: 1px solid rgba(14, 45, 34, 0.14);
  transform: translateX(-50%) rotate(45deg);
}
.nav-group.is-open .nav-menu {
  display: grid;
}
.nav-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: #0e2d22;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.35;
  transition: background 160ms ease, color 160ms ease;
}
.nav-menu a::after {
  display: none !important;
}
.nav-menu a:hover,
.nav-menu a:focus-visible,
.nav-menu a.is-current {
  background: rgba(168, 224, 106, 0.22);
  color: #052217;
}
@media (max-width: 900px) {
  .nav-group {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    margin-bottom: 4px;
    padding: 0;
    position: relative;
  }
  .nav-group::after {
    display: none !important;
  }
  .nav-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    padding: 10px 12px;
    border-radius: 8px;
    color: #ffffff;
    font-weight: 800;
    box-sizing: border-box;
    background: transparent;
  }
  .nav-trigger:hover,
  .nav-trigger:focus-visible {
    background: rgba(168, 224, 106, 0.18);
    color: #c8ff54;
  }
  .nav-trigger::after {
    display: none !important;
  }
  .nav-menu,
  .nav-group:hover .nav-menu,
  .nav-group:focus-within .nav-menu {
    position: static;
    width: 100%;
    transform: none;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: transparent;
    border: none;
    border-left: 2px solid rgba(168, 224, 106, 0.45);
    border-radius: 0;
    box-shadow: none;
    padding: 4px 0 6px 12px;
    margin: 2px 0 6px 0;
    box-sizing: border-box;
  }
  .nav-group.is-open .nav-menu {
    display: flex;
  }
  .nav-menu::before,
  .nav-menu::after {
    display: none !important;
  }
  .nav-menu a {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 8px 10px;
    font-size: 0.84rem;
    font-weight: 600;
    color: #ffffff;
    background: transparent;
    text-align: left;
  }
  .nav-menu a:hover,
  .nav-menu a:focus-visible,
  .nav-menu a.is-current {
    background: rgba(168, 224, 106, 0.15);
    color: #c8ff54;
  }
}

/* ==========================================================================
   Visual Hubs & Infographic Architecture
   ========================================================================== */

.hub-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(176, 138, 73, 0.12);
  color: var(--accent2);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.hub-stat-ribbon {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin: -30px auto 35px;
  position: relative;
  z-index: 10;
}

.hub-stat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: 0 4px 14px rgba(11, 29, 42, 0.04);
}

.hub-stat-num {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.hub-stat-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 6px;
}

.infographic-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0 35px;
  position: relative;
}

.flow-step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.flow-step:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(11, 29, 42, 0.06);
}

.flow-step-num {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--accent);
  background: var(--soft);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.flow-step h4 {
  margin: 4px 0 8px;
  color: var(--navy);
  font-size: 1rem;
}

.flow-step p {
  margin: 0;
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.5;
}

.hub-section-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  border-bottom: 2px solid var(--line);
  padding-bottom: 12px;
  margin: 36px 0 20px;
}

.hub-section-title h2 {
  margin: 0;
  font-size: 1.45rem;
  color: var(--navy);
}

.hub-section-title .section-meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.card-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.hub-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.hub-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 10px 28px rgba(11, 29, 42, 0.08);
}

.hub-card-tag {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--soft);
  color: var(--muted);
  margin-bottom: 12px;
}

.hub-card-tag.highlight {
  background: #fdf6ec;
  color: var(--accent2);
}

.hub-card-tag.interactive {
  background: #eef7f5;
  color: #0f766e;
}

.hub-card h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  color: var(--navy);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hub-card p {
  margin: 0 0 16px;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
  flex-grow: 1;
}

.hub-card-footer {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent2);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}

.taxonomy-banner {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 32px 36px;
  margin: 32px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.taxonomy-banner h3 {
  color: #fff;
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.taxonomy-banner p {
  margin: 0;
  color: #cbd5e1;
  max-width: 650px;
  font-size: 0.92rem;
}

.taxonomy-banner .btn {
  white-space: nowrap;
}

/* ===== Article Reading Progress & Related Content Grid ===== */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #10b981, #073c3a);
  z-index: 10001;
  transition: width 0.1s ease-out;
}

.article-progress-pill {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(7, 60, 58, 0.95);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}

.article-progress-pill.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.article-related-content {
  width: min(calc(100% - 40px), 960px);
  margin: 64px auto 32px;
  padding-top: 40px;
  border-top: 2px solid #e2e8f0;
  box-sizing: border-box;
}

.related-content-header {
  margin-bottom: 28px;
}

.related-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  color: #073c3a;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.related-content-header h2 {
  font-size: 1.65rem;
  color: #0b1d2a;
  margin: 0;
  line-height: 1.25;
}

.related-content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.related-col {
  display: flex;
  flex-direction: column;
}

.related-col-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid #cbd5e1;
}

.related-col-head h3 {
  font-size: 1.05rem;
  color: #073c3a;
  margin: 0;
  font-weight: 800;
}

.related-view-all {
  font-size: 0.8rem;
  color: #073c3a;
  text-decoration: none;
  font-weight: 700;
}

.related-view-all:hover {
  text-decoration: underline;
}

.related-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-card {
  display: block;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 16px 18px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
  border-color: #073c3a;
  background: #ffffff;
}

.related-card .card-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 750;
  color: #073c3a;
  background: #e6f4f1;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.related-card h4 {
  font-size: 0.95rem;
  color: #0b1d2a;
  margin: 0 0 6px;
  line-height: 1.35;
}

.related-card p {
  font-size: 0.82rem;
  color: #4b5a66;
  margin: 0;
  line-height: 1.45;
}

@media (max-width: 800px) {
  .article-related-content {
    width: min(calc(100% - 32px), 960px);
    margin: 48px auto 24px;
    padding-top: 32px;
  }
  .related-content-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-progress-pill {
    bottom: 16px;
    right: 16px;
    font-size: 0.76rem;
    padding: 6px 12px;
  }
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .actions,
  .nav-links,
  .article-progress-pill {
    display: none !important;
  }
  .hero,
  .page-hero,
  .paper-header,
  .section {
    padding: 25px 0;
    background: #fff;
    color: #000;
  }
  .hero p,
  .paper-header p {
    color: #000;
  }
}

/* ==========================================================================
   PPRI Technical SEO, Crawl Spiderweb & Rich Component Styles
   ========================================================================== */

/* 1. Inline Spiderweb Callout Bridge */
.ppri-callout-bridge {
  background: linear-gradient(135deg, #f0f7f4 0%, #e8f3ed 100%);
  border: 1px solid #c2ded0;
  border-left: 5px solid #073c3a;
  border-radius: 8px;
  padding: 22px 24px;
  margin: 34px 0 38px;
  box-shadow: 0 4px 14px rgba(7, 60, 58, 0.06);
}
.ppri-callout-bridge .callout-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}
.ppri-callout-bridge .callout-badge {
  display: inline-block;
  background: #073c3a;
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 4px;
}
.ppri-callout-bridge h4 {
  margin: 0;
  color: #073c3a;
  font-size: 1.15rem;
  font-weight: 700;
}
.ppri-callout-bridge p {
  margin: 0 0 14px;
  color: #2d5a4c;
  font-size: 0.94rem;
  line-height: 1.55;
}
.ppri-callout-bridge .callout-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px 18px;
}
.ppri-callout-bridge .callout-links li {
  font-size: 0.88rem;
  line-height: 1.45;
}
.ppri-callout-bridge .callout-links a {
  color: #073c3a;
  text-decoration: underline;
  text-decoration-color: rgba(7, 60, 58, 0.35);
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
.ppri-callout-bridge .callout-links a:hover {
  color: #87672f;
  text-decoration-color: #87672f;
}

/* 2. Global Research Directory Index (Above Footer) */
.site-directory {
  background: #09202a;
  color: #e2e8f0;
  border-top: 3px solid #d4af37;
  padding: 44px 0 40px;
  font-size: 0.88rem;
}
.site-directory .directory-details {
  border: none;
  background: transparent;
}
.site-directory .directory-summary {
  list-style: none;
  cursor: pointer;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.site-directory .directory-summary::-webkit-details-marker {
  display: none;
}
.site-directory .directory-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.01em;
}
.site-directory .directory-hint {
  font-size: 0.88rem;
  color: #cbd5e1;
}
.site-directory .directory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.site-directory .directory-col h4 {
  color: #d4af37;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}
.site-directory .directory-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.site-directory .directory-col a {
  color: #e2e8f0;
  text-decoration: none;
  line-height: 1.45;
  transition: color 0.15s ease;
  display: block;
}
.site-directory .directory-col a:hover {
  color: #ffffff;
  text-decoration: underline;
  text-decoration-color: #d4af37;
  text-underline-offset: 3px;
}

@media (max-width: 1024px) {
  .site-directory .directory-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}
@media (max-width: 680px) {
  .site-directory .directory-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .site-directory .directory-summary {
    position: relative;
    padding-right: 32px;
  }
  .site-directory .directory-summary::after {
    content: "▼";
    position: absolute;
    right: 4px;
    top: 6px;
    font-size: 0.85rem;
    color: #d4af37;
    transition: transform 0.2s ease;
  }
  .site-directory details[open] .directory-summary::after {
    transform: rotate(180deg);
  }
}

/* 3. Static Executive Data Summaries (Observatories & Maps) */
.seo-data-summary {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-top: 4px solid #073c3a;
  border-radius: 8px;
  padding: 28px 30px;
  margin: 28px 0 36px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}
.seo-data-summary h2 {
  color: #073c3a;
  font-size: 1.45rem;
  margin: 0 0 12px;
}
.seo-data-summary .summary-lead {
  font-size: 1rem;
  color: #334155;
  line-height: 1.68;
  margin-bottom: 20px;
}
.seo-data-summary .table-wrap {
  overflow-x: auto;
  margin: 20px 0;
  -webkit-overflow-scrolling: touch;
}
.data-summary-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}
.data-summary-table th {
  background: #f1f5f9;
  color: #073c3a;
  font-weight: 700;
  padding: 10px 14px;
  border-bottom: 2px solid #cbd5e1;
}
.data-summary-table td {
  padding: 10px 14px;
  border-bottom: 1px solid #e2e8f0;
  color: #334155;
}
.data-summary-table tr:hover {
  background: #f8fafc;
}
.seo-data-summary .summary-note {
  font-size: 0.84rem;
  color: #64748b;
  margin-top: 14px;
  line-height: 1.5;
}

/* 4. Semantic FAQ Accordions */
.faq-section {
  margin: 48px 0 36px;
  padding-top: 36px;
  border-top: 2px solid #e2e8f0;
}
.faq-section h2 {
  color: #073c3a;
  font-size: 1.65rem;
  margin: 0 0 16px;
}
.faq-section .faq-intro {
  color: #475569;
  font-size: 0.98rem;
  margin-bottom: 24px;
}
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-left: 4px solid #073c3a;
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-item[open] {
  border-left-color: #d4af37;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.05);
}
.faq-question {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  color: #073c3a;
  font-size: 1.02rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.faq-question::-webkit-details-marker {
  display: none;
}
.faq-question::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 600;
  color: #87672f;
  margin-left: 12px;
  transition: transform 0.2s ease;
}
.faq-item[open] .faq-question::after {
  content: "−";
}
.faq-answer {
  padding: 0 20px 18px;
  color: #334155;
  font-size: 0.95rem;
  line-height: 1.65;
}
.faq-answer p {
  margin: 0 0 10px;
}
.faq-answer p:last-child {
  margin-bottom: 0;
}

/* 5. Directory Collapsible Links (All Pillars) */
.dir-more-articles,
.dir-more-section {
  margin-top: 10px;
}
.dir-more-summary {
  cursor: pointer;
  font-weight: 700;
  color: #073c3a;
  font-size: 0.84rem;
  padding: 6px 12px;
  background: #eef7f2;
  border: 1px solid #c8ded3;
  border-radius: 6px;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 180ms ease;
  user-select: none;
}
.dir-more-summary:hover {
  background: #073c3a;
  color: #ffffff;
  border-color: #073c3a;
}
.dir-more-summary::-webkit-details-marker {
  display: none;
}
.dir-more-list {
  margin-top: 10px !important;
  border-left: 2px solid #cbd5e1;
  padding-left: 12px !important;
}

/* 6. Centered FAQ Page Styles */
.faq-page-section {
  padding: 48px 0 80px;
  background: #fdfdfd;
}
.faq-container-centered {
  max-width: 860px;
  margin: 0 auto;
}
.faq-topic-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 36px;
}
.faq-topic-btn {
  padding: 8px 16px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #334155;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 180ms ease;
}
.faq-topic-btn:hover {
  border-color: #073c3a;
  color: #073c3a;
  background: #f0f7f3;
}
.faq-topic-btn.active {
  background: #073c3a;
  color: #ffffff;
  border-color: #073c3a;
  box-shadow: 0 2px 6px rgba(7, 60, 58, 0.25);
}
.faq-card-modern {
  background: #ffffff;
  border: 1px solid #d2e4db;
  border-radius: 10px;
  margin-bottom: 14px;
  transition: border-color 180ms ease, box-shadow 180ms ease;
  overflow: hidden;
}
.faq-card-modern:hover {
  border-color: #073c3a;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}
.faq-card-modern[open] {
  border-color: #073c3a;
  box-shadow: 0 4px 16px rgba(7, 60, 58, 0.08);
}
.faq-card-modern summary {
  font-weight: 700;
  color: #073c3a;
  cursor: pointer;
  font-size: 1.05rem;
  padding: 16px 20px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  background: #ffffff;
  transition: background 150ms ease;
}
.faq-card-modern summary::-webkit-details-marker {
  display: none;
}
.faq-card-modern summary:hover {
  background: #f8faf9;
}
.faq-card-modern summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: #145a32;
  margin-left: 12px;
  flex-shrink: 0;
  line-height: 1;
}
.faq-card-modern[open] summary::after {
  content: "−";
}
.faq-card-modern[open] summary {
  border-bottom: 1px solid #eef2f0;
  background: #f8faf9;
}
.faq-card-modern .faq-body {
  padding: 16px 20px 20px;
  color: #334155;
  line-height: 1.68;
  font-size: 0.95rem;
}
.faq-card-modern .faq-body p:last-child {
  margin-bottom: 0;
}

/* 7. Article Card Layout Standardization */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  align-items: stretch;
}
.article-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
}
.article-card-header {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.article-card h3 {
  min-height: 2.8em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-card p {
  flex-grow: 1;
  margin-bottom: 14px;
}
.article-card-footer {
  margin-top: auto;
}