:root {
  color-scheme: light;
  --bg-0: #f7fafd;
  --bg-1: #eef4fb;
  --bg-2: #e6eef8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --surface-muted: rgba(247, 250, 253, 0.92);
  --line-soft: rgba(15, 29, 46, 0.08);
  --line-strong: rgba(15, 29, 46, 0.14);
  --text-1: #0f1d2e;
  --text-2: #53657a;
  --text-3: #7d8a99;
  --air: #5aa7ff;
  --teal: #55cfc0;
  --cobalt: #315bff;
  --mint: #b9ffe7;
  --amber: #c97a2b;
  --amber-soft: #f5e4cf;
  --shadow-soft: 0 22px 52px rgba(18, 32, 49, 0.08);
  --shadow-focus: 0 0 0 4px rgba(49, 91, 255, 0.14);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --max-width: 1220px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-1);
  background:
    radial-gradient(circle at 12% 0%, rgba(90, 167, 255, 0.18), transparent 28%),
    radial-gradient(circle at 88% 2%, rgba(85, 207, 192, 0.16), transparent 24%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 55%, var(--bg-2));
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { max-width: 100%; display: block; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 1rem;
  z-index: 100;
  padding: 0.8rem 1rem;
  background: #fff;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
}
.skip-link:focus { left: 1rem; }

.shell {
  width: min(var(--max-width), calc(100% - 1.25rem));
  margin: 0 auto;
}

.site-hero {
  position: relative;
  padding: 0.75rem 0 2rem;
}
.site-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 24% 18%, rgba(49, 91, 255, 0.11), transparent 22%),
    radial-gradient(circle at 78% 12%, rgba(85, 207, 192, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255,255,255,0.42), rgba(255,255,255,0));
  pointer-events: none;
}

.topbar {
  position: sticky;
  top: 0.65rem;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 999px;
  background: rgba(247, 250, 253, 0.76);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 32px rgba(18, 32, 49, 0.07);
}

.brand,
.nav-links a,
.button,
.chip-button,
.text-link,
.copy-button {
  min-height: 44px;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line-soft);
  font-family: "Inter Tight", "Inter", sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 0.1rem;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a,
.button,
.chip-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 0.96rem;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text-1);
  white-space: nowrap;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}
.nav-links a:hover,
.button:hover,
.chip-button:hover { transform: translateY(-1px); border-color: var(--line-strong); background: rgba(255,255,255,0.94); }

.button.primary {
  background: linear-gradient(135deg, rgba(49, 91, 255, 0.14), rgba(85, 207, 192, 0.16));
  color: var(--text-1);
  border-color: rgba(49, 91, 255, 0.12);
  box-shadow: 0 10px 24px rgba(49, 91, 255, 0.08);
}
.button.secondary { color: var(--text-2); }
.text-link {
  display: inline-flex;
  align-items: center;
  color: var(--cobalt);
  font-weight: 700;
}
.text-link:hover { text-decoration: underline; text-underline-offset: 0.18em; }

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}
.hero-surface,
.note-card,
.primer-card,
.featured-signal-card,
.utility-card,
.map-card,
.route-panel,
.methodology-panel,
.cta-panel,
.resource-card,
.collection-card {
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
}

.hero-copy,
.hero-monitor,
.note-card,
.primer-card,
.utility-card,
.map-card,
.route-panel,
.cta-panel,
.collection-card,
.filter-panel,
.resource-card,
.methodology-panel,
.featured-library-card,
.featured-signal-card {
  border-radius: var(--radius-xl);
}

.hero-copy,
.hero-monitor { padding: 1.35rem; }
.hero-copy h1,
.section-heading h2,
.section-intro h2,
.methodology-panel h2,
.cta-panel h2 {
  margin: 0;
  font-family: "Inter Tight", "Inter", sans-serif;
  letter-spacing: -0.045em;
}
.hero-copy h1 {
  font-size: clamp(3rem, 7vw, 6.3rem);
  line-height: 0.93;
  max-width: 11ch;
}
.eyebrow,
.mini-label,
.monitor-label,
.search-label,
.collection-link-kind,
.meta-chip,
.visual-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 700;
}
.eyebrow { color: var(--cobalt); margin-bottom: 1rem; }
.mini-label,
.monitor-label,
.search-label,
.collection-link-kind,
.meta-chip,
.visual-chip { color: var(--text-3); }
.lede,
.section-intro p,
.note-card p,
.primer-card p,
.utility-card p,
.map-card p,
.route-panel p,
.methodology-panel p,
.cta-panel p,
.resource-summary,
.collection-description,
.collection-link span,
.monitor-footnote p {
  color: var(--text-2);
  line-height: 1.72;
}
.lede { font-size: 1.07rem; max-width: 62ch; margin: 1.05rem 0 0; }
.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.35rem;
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.3rem;
}
.proof-strip span,
.audience-pill,
.micro-tag-list li {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.45rem 0.78rem;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: rgba(255,255,255,0.72);
  color: var(--text-2);
  font-size: 0.86rem;
}

.monitor-panel { display: grid; gap: 1rem; }
.monitor-block {
  padding: 1rem;
  border-radius: calc(var(--radius-xl) - 8px);
  background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(244,248,253,0.84));
  border: 1px solid rgba(15,29,46,0.06);
}
.monitor-list {
  display: grid;
  gap: 0.8rem;
  margin: 0.8rem 0 0;
  padding: 0;
  list-style: none;
}
.monitor-list li {
  display: grid;
  gap: 0.15rem;
}
.monitor-list strong { font-size: 1rem; }
.monitor-list span,
.monitor-grid span { color: var(--text-3); font-size: 0.86rem; }
.monitor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: 0.8rem;
}
.monitor-grid div {
  padding: 0.82rem;
  border-radius: 20px;
  background: rgba(15, 29, 46, 0.035);
  border: 1px solid rgba(15, 29, 46, 0.06);
}
.monitor-grid strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1.38rem;
  font-family: "Inter Tight", "Inter", sans-serif;
}
.monitor-footnote strong { color: var(--text-1); }

.section { padding: 1.25rem 0 0; }
.note-strip {
  display: grid;
  gap: 1rem;
}
.section-heading,
.section-intro { margin-bottom: 1rem; }
.section-heading h2,
.section-intro h2,
.methodology-panel h2,
.cta-panel h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.02;
  max-width: 16ch;
}
.wide-heading h2 { max-width: 21ch; }

.split-section {
  display: grid;
  gap: 1rem;
}
.primer-grid,
.category-grid,
.audience-route-grid,
.reader-route-grid,
.ecosystem-grid,
.methodology-grid,
.method-grid,
.coverage-columns,
.note-strip,
.signal-layout,
.collection-grid {
  display: grid;
  gap: 1rem;
}

.primer-card,
.utility-card,
.map-card,
.route-panel,
.ecosystem-card,
.method-card {
  padding: 1.15rem;
}
.primer-card h3,
.utility-card h3,
.map-card h3,
.route-panel h3,
.ecosystem-card h3,
.method-card h3,
.note-card h2,
.collection-card h3,
.resource-card h3,
.coverage-heading {
  margin: 0.35rem 0 0;
  font-family: "Inter Tight", "Inter", sans-serif;
  letter-spacing: -0.03em;
}
.note-card { padding: 1.05rem 1.15rem; }
.note-card h2 { font-size: 1.1rem; }
.note-card.alt { background: rgba(255,255,255,0.68); }

.tone-air {
  background: linear-gradient(180deg, rgba(255,255,255,0.86), rgba(90,167,255,0.06));
}
.tone-amber {
  background: linear-gradient(180deg, rgba(255,255,255,0.86), rgba(201,122,43,0.08));
}
.tone-cobalt {
  background: linear-gradient(180deg, rgba(255,255,255,0.86), rgba(49,91,255,0.07));
}

.signal-layout { align-items: stretch; }
.featured-signal-card {
  overflow: hidden;
  display: grid;
  background: rgba(255,255,255,0.88);
}
.featured-signal-visual,
.resource-visual {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 220px;
  padding: 1.2rem;
  border-radius: calc(var(--radius-xl) - 8px);
  color: white;
  isolation: isolate;
}
.featured-signal-visual::before,
.resource-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 16%, rgba(255,255,255,0.22), transparent 22%),
    radial-gradient(circle at 82% 18%, rgba(255,255,255,0.12), transparent 16%),
    linear-gradient(160deg, rgba(9,20,34,0.2), rgba(9,20,34,0.64));
  z-index: -1;
}
.theme-commercialization,
.featured-signal-visual.theme-commercialization { background: linear-gradient(135deg, #2247c4, #53b7ff); }
.theme-buyer-enablement { background: linear-gradient(135deg, #0e4f73, #45c6d6); }
.theme-brand-product { background: linear-gradient(135deg, #7a4cf5, #c05aa6); }
.theme-policy-market-design { background: linear-gradient(135deg, #886023, #c97a2b); }
.theme-capital-partnerships { background: linear-gradient(135deg, #155778, #198ca8); }
.theme-core-explainers { background: linear-gradient(135deg, #203555, #5573ff); }

.visual-title {
  font-family: "Inter Tight", "Inter", sans-serif;
  font-size: clamp(1.2rem, 2.2vw, 1.8rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.visual-meta { margin-top: 0.3rem; font-size: 0.95rem; color: rgba(255,255,255,0.82); }
.featured-signal-copy { padding: 1.25rem; }
.card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  background: rgba(49,91,255,0.1);
  color: var(--cobalt);
  font-weight: 800;
}
.signal-stack { display: grid; gap: 1rem; }

.category-grid,
.audience-route-grid,
.reader-route-grid,
.ecosystem-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.ecosystem-card,
.method-card {
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: rgba(255,255,255,0.78);
  box-shadow: var(--shadow-soft);
}
.route-link-list {
  display: grid;
  gap: 0.75rem;
}
.route-panel-library {
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.8);
}
.method-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.micro-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.route-panel {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.methodology-panel,
.cta-panel {
  padding: 1.2rem;
}
.methodology-grid {
  margin-top: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.methodology-grid article {
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15,29,46,0.08);
  background: rgba(255,255,255,0.68);
}
.cta-panel {
  display: grid;
  gap: 1rem;
  align-items: center;
}
.site-footer {
  padding: 1.2rem 0 2.4rem;
  color: var(--text-2);
}

.library-hero-layout { align-items: stretch; }
.filter-panel {
  padding: 1rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(255,255,255,0.72);
  background: rgba(255,255,255,0.74);
  box-shadow: var(--shadow-soft);
}
.filter-row {
  display: grid;
  gap: 0.8rem;
}
.filter-row + .filter-row { margin-top: 0.8rem; }
.filter-row-search {
  grid-template-columns: 1fr;
}
.search-field {
  display: grid;
  gap: 0.45rem;
}
.search-field input {
  width: 100%;
  min-height: 50px;
  padding: 0.9rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--line-soft);
  background: rgba(255,255,255,0.92);
  color: var(--text-1);
}
.search-field input::placeholder { color: var(--text-3); }
.filter-status {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.25rem;
}
.filter-status strong {
  font-family: "Inter Tight", "Inter", sans-serif;
  font-size: 1.25rem;
}
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.chip-button.active {
  background: linear-gradient(135deg, rgba(49,91,255,0.14), rgba(85,207,192,0.16));
  border-color: rgba(49,91,255,0.18);
  box-shadow: 0 8px 22px rgba(49, 91, 255, 0.08);
}
.chip-button-inline { padding-inline: 0.92rem; }

.resource-grid,
.collection-grid,
.coverage-columns {
  grid-template-columns: 1fr;
}
.resource-grid {
  display: grid;
  gap: 1rem;
}
.resource-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: rgba(255,255,255,0.84);
}
.resource-card-heroish,
.resource-card-featured {
  border-color: rgba(49, 91, 255, 0.12);
}
.resource-visual {
  min-height: 180px;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.resource-visual-media {
  padding: 0;
  min-height: unset;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, rgba(49, 91, 255, 0.08), rgba(85, 207, 192, 0.1));
}
.resource-visual-media::before { display: none; }
.resource-visual-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.resource-visual-compact {
  min-height: 148px;
}
.resource-body {
  display: grid;
  gap: 0.85rem;
  padding: 1rem 1rem 1.05rem;
}
.resource-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  align-items: center;
}
.meta-chip {
  padding: 0.38rem 0.56rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.44);
  background: rgba(15, 29, 46, 0.04);
}
.meta-text {
  font-size: 0.88rem;
  color: var(--text-3);
}
.resource-card h3 { font-size: 1.28rem; line-height: 1.14; }
.resource-card-compact h3 { font-size: 1.08rem; }
.resource-footer {
  display: grid;
  gap: 0.75rem;
  margin-top: auto;
}
.audience-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.resource-card-compact .resource-body { gap: 0.72rem; }

.collection-grid {
  display: grid;
  gap: 1rem;
}
.collection-card {
  padding: 1.05rem;
  background: rgba(255,255,255,0.78);
}
.collection-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.collection-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}
.collection-link {
  display: grid;
  gap: 0.28rem;
  padding: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(15,29,46,0.08);
  background: rgba(255,255,255,0.74);
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.collection-link:hover { transform: translateY(-1px); border-color: var(--line-strong); background: rgba(255,255,255,0.94); }
.collection-link strong { line-height: 1.22; }

.coverage-heading {
  margin-bottom: 0.9rem;
  font-size: 1.2rem;
}
.coverage-columns { display: grid; gap: 1rem; }

.resource-card:hover,
.collection-card:hover,
.note-card:hover,
.primer-card:hover,
.utility-card:hover,
.map-card:hover,
.route-panel:hover,
.ecosystem-card:hover,
.method-card:hover,
.cta-panel:hover,
.methodology-panel:hover {
  transform: translateY(-1px);
  box-shadow: 0 24px 58px rgba(18, 32, 49, 0.09);
}

.reveal-ready {
  opacity: 1;
  transform: none;
}

.is-visible {
  opacity: 1;
  transform: none;
}

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

section[id] { scroll-margin-top: 6rem; }

@media (min-width: 760px) {
  .hero-layout,
  .signal-layout,
  .note-strip,
  .coverage-columns,
  .cta-panel,
  .split-section {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .split-section {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: start;
  }
  .primer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .resource-grid-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .resource-grid-secondary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .filter-row-search {
    grid-template-columns: 1.4fr 0.6fr;
    align-items: end;
  }
  .resource-card-heroish {
    grid-column: 1 / -1;
  }
}

@media (min-width: 980px) {
  .hero-layout,
  .library-hero-layout {
    grid-template-columns: 1.08fr 0.92fr;
  }
  .featured-signal-card,
  .resource-card-featured {
    grid-template-columns: 1fr 1fr;
  }
  .featured-signal-copy { padding: 1.4rem; }
  .primer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .resource-grid-main { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .resource-grid-secondary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .collection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}