/* Site-level layout for the governance brief page.
   Built on top of the Industry design system (styles.css) — no tokens
   are redefined here, only page structure and responsive behavior. */

html {
  scroll-behavior: smooth;
}

body.ds-industry {
  min-height: 100vh;
}

/* — left-hand navigation rail — */
body.ds-industry {
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: start;
}

.page {
  min-width: 0;
}

.side-nav {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-5);
  border-right: 1px solid var(--color-divider);
}

.side-nav .nav-brand {
  font-size: 16px;
  margin-right: 0;
}

.side-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.side-nav-primary {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 6px 0;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 14px;
  color: var(--color-text);
  text-decoration: none;
}

.side-nav-num {
  font-size: 11px;
  color: var(--color-accent-600);
}

.side-nav-sub {
  display: block;
  margin: -2px 0 4px 21px;
  padding: 3px 0 3px 12px;
  border-left: 1px solid var(--color-divider);
  font-size: 12.5px;
  color: var(--color-text);
  opacity: 0.6;
  text-decoration: none;
}

.side-nav-primary:hover,
.side-nav-sub:hover {
  color: var(--color-accent-600);
  opacity: 1;
}

/* — in-content section numbering (visual hierarchy w/ side-nav) — */
.brief-section h2 {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}
.section-num {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 20px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--color-accent-400);
}

.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}

.hero {
  padding-top: var(--space-8);
  padding-bottom: var(--space-5);
}

.hero h1 {
  font-size: clamp(30px, 5vw, 48px);
  max-width: 820px;
}

.hero .lede {
  font-size: 18px;
  opacity: 0.75;
  max-width: 640px;
  margin-top: var(--space-3);
}

/* — flywheel diagram — */
.flywheel {
  position: relative;
  width: min(420px, 90vw);
  aspect-ratio: 1 / 1;
  margin: var(--space-6) auto var(--space-4);
}
.flywheel-arrows {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.flywheel-arrows path {
  fill: none;
  stroke: var(--color-accent-500);
  stroke-width: 1.5;
}
.flywheel-arrows marker path {
  fill: var(--color-accent-500);
  stroke: none;
}
.flywheel-node {
  position: absolute;
  transform: translate(-50%, -50%);
  max-width: 108px;
  padding: 6px 9px;
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 11px;
  line-height: 1.25;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-align: center;
  color: var(--color-text);
}
.flywheel-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 34%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1.5px dashed var(--color-divider);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 12px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-accent-700);
}
.flywheel-caption {
  max-width: 380px;
  margin: 0 auto;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  font-size: 13px;
  text-align: center;
  opacity: 0.75;
}

@media (max-width: 480px) {
  .flywheel-node {
    font-size: 9.5px;
    max-width: 84px;
    padding: 4px 6px;
  }
  .flywheel-center {
    font-size: 10px;
  }
}

.brief-section {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  border-top: 1px solid var(--color-divider);
}

.brief-section h2 {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-700);
  margin-bottom: var(--space-4);
}

.brief-section p {
  font-size: 17px;
  line-height: 1.6;
  max-width: 760px;
}

.brief-section.faq p {
  font-size: 16px;
  line-height: 1.6;
  opacity: 0.85;
}

.faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.faq-list li {
  font-size: 16px;
  line-height: 1.6;
  opacity: 0.85;
}
.faq-list li strong {
  display: block;
  opacity: 1;
  color: var(--color-accent-700);
  font-weight: 500;
  margin-bottom: 2px;
}

.brief-section p strong {
  color: var(--color-accent-700);
}

.brief-section.policy p strong {
  color: var(--color-accent-600);
}

.brief-section h3 {
  font-size: 15px;
  letter-spacing: 0.03em;
  color: var(--color-text);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.brief-section h3:first-of-type {
  margin-top: var(--space-5);
}

/* — definition & numbered lists — */
.def-list,
.numbered-list {
  max-width: 760px;
  padding-left: var(--space-5);
  font-size: 16px;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* — pipeline / chain diagram — */
.chain {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.chain li {
  display: grid;
  grid-template-columns: 32px 1fr;
  align-items: baseline;
  gap: var(--space-3);
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-accent-500);
  font-size: 16px;
}
.chain-num {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 18px;
  color: var(--color-accent-600);
}

/* — stat grid — */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.stat-tile {
  padding: var(--space-4);
  gap: var(--space-1);
}
.stat-number {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 30px;
  color: var(--color-accent-600);
  line-height: 1.1;
}
.stat-label {
  font-size: 13px;
  font-weight: 500;
}
.stat-delta {
  font-size: 12px;
  opacity: 0.65;
}

/* — jurisdiction lists — */
.juris-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  max-width: 900px;
}
.juris-heading {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 15px;
  color: var(--color-accent-700);
  margin-bottom: var(--space-2);
}
.juris-grid p {
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.85;
}
.juris-links a {
  white-space: nowrap;
}

.case-card .card-body sup {
  font-size: 11px;
  margin-left: 1px;
}
.case-card .card-body sup a {
  text-decoration: none;
}

/* — case study cards — */
.case-card {
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  max-width: 760px;
}
.case-card:last-child {
  margin-bottom: 0;
}
.case-card .card-title {
  margin-bottom: var(--space-2);
}
.case-card .card-body {
  font-size: 15px;
  opacity: 1;
  max-width: none;
}
.case-card .card-body + .card-body {
  margin-top: var(--space-2);
}

/* — policy tier cards — */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin: var(--space-4) 0 var(--space-6);
}
.tier-card {
  padding: var(--space-4);
  gap: var(--space-2);
}
.tier-tag {
  align-self: flex-start;
}
.tier-name {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 17px;
  line-height: 1.2;
}
.tier-card ul {
  margin: 0;
  padding-left: var(--space-4);
  font-size: 13px;
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.tier-scope {
  font-size: 12px;
  opacity: 0.7;
  margin: 0;
}

/* — technical contributors (de-emphasized) — */
.tech-details {
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}
.tech-details summary {
  cursor: pointer;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  opacity: 0.8;
}
.tech-details summary:hover {
  opacity: 1;
}
.tech-details summary::-webkit-details-marker {
  color: var(--color-neutral-500);
}
.tech-body {
  margin-top: var(--space-4);
  max-width: 760px;
}
.tech-body p {
  font-size: 14px;
  opacity: 0.8;
}
.tech-body ul {
  padding-left: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: 13px;
  line-height: 1.55;
  opacity: 0.85;
}

.site-footer {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: 12px;
  opacity: 0.6;
}

@media (max-width: 860px) {
  body.ds-industry {
    display: block;
  }
  .side-nav {
    position: sticky;
    height: auto;
    width: 100%;
    flex-direction: row;
    align-items: center;
    gap: var(--space-5);
    padding: var(--space-3) var(--space-4);
    border-right: none;
    border-bottom: 1px solid var(--color-divider);
    background: var(--color-bg);
    overflow-x: auto;
    overflow-y: visible;
    z-index: 10;
  }
  .side-nav .nav-brand {
    white-space: nowrap;
    flex: none;
    margin-right: var(--space-4);
  }
  .side-nav-links {
    flex-direction: row;
    align-items: center;
    gap: var(--space-4);
  }
  .side-nav-sub {
    margin: 0;
    padding: 0;
    border-left: none;
    white-space: nowrap;
  }
  .side-nav-primary {
    padding: 0;
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  .wrap {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
  .brief-section p,
  .brief-section.faq p {
    font-size: 16px;
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tier-grid {
    grid-template-columns: 1fr;
  }
  .juris-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  .stat-grid {
    grid-template-columns: 1fr;
  }
}