/* Hair Intelligence — landing + article scoped styles
   Depends on style.css tokens (load style.css first). */

/* Article-only local tokens — no :root paper/ink redefinition */
.intelligence-page,
.intelligence-article {
  --intel-champagne-soft: rgba(183, 154, 99, 0.12);
  --intel-measure: 65ch;
  --intel-narrow: 42rem;
  --intel-caption: 0.8125rem;
  --intel-label: 0.6875rem;
  --intel-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
}

@media (prefers-reduced-motion: reduce) {
  .intelligence-page *,
  .intelligence-article *,
  .intelligence-page *::before,
  .intelligence-article *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   Hub landing
   ============================================================ */

.intel-hero {
  padding-block: var(--space-xl) var(--space-lg);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.intel-hero__inner {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

@media (min-width: 768px) {
  .intel-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

.intel-hero__eyebrow {
  display: inline-block;
  margin-bottom: var(--space-sm);
  font-size: var(--intel-label);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-champagne-deep);
}

.intel-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 500;
  line-height: 1.14;
  color: var(--color-ink);
  margin: 0 0 var(--space-sm);
  max-width: 18ch;
}

.intel-hero__lead {
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
  color: var(--color-body);
  max-width: 38rem;
  margin: 0 0 var(--space-md);
}

.intel-hero__tagline {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-muted);
  margin: 0;
}

.intel-hero__media,
.intel-hero__figure {
  aspect-ratio: 4 / 3;
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 0;
}

.intel-hero__media img,
.intel-hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.intel-hero__figure figcaption {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--intel-caption);
  color: var(--color-muted);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.intel-hero__signature {
  margin: var(--space-sm) 0 0;
  font-size: var(--intel-caption);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.badge-planned,
.badge-active {
  display: inline-block;
  font-size: var(--intel-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge-planned {
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius);
}

.badge-active {
  color: var(--color-champagne-deep);
}

.world-card {
  padding: var(--space-lg) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.world-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-ink);
  margin: 0 0 var(--space-xs);
}

.world-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-body);
}

.world-card__status {
  margin-top: var(--space-sm) !important;
}

.article-card-grid {
  list-style: none;
  margin: var(--space-md) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .article-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .article-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card__meta {
  margin: 0;
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

.article-card h3,
.article-card--featured h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-ink);
  margin: 0;
  line-height: 1.35;
}

.article-card--featured {
  padding: var(--space-lg);
}

.text-link {
  font-weight: 600;
  color: var(--color-ink);
  text-decoration-color: var(--color-champagne);
}

.btn-secondary,
.btn--on-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--radius);
  cursor: pointer;
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-ink);
}

.btn--on-dark {
  background: var(--color-paper);
  color: var(--color-ink);
  border: 1px solid var(--color-paper);
}

.section--final.journey-cta,
.journey-cta.section--final {
  display: block;
  padding-block: var(--space-xl);
  background: var(--color-dark);
  color: var(--color-on-dark);
}

.journey-cta__roles {
  list-style: none;
  margin: var(--space-md) 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.journey-cta__roles li {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color-on-dark-border);
  border-radius: var(--radius);
  color: var(--color-on-dark-muted);
  font-size: 0.875rem;
}

.ratio-viz__bars {
  display: flex;
  gap: 2px;
  height: 2.5rem;
  margin: var(--space-sm) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-paper);
}

.ratio-viz__seg {
  min-width: 0.5rem;
  transition: flex-grow 200ms var(--intel-ease, ease);
}

.ratio-viz__seg--long { background: var(--color-graphite); }
.ratio-viz__seg--mid { background: var(--color-champagne); }
.ratio-viz__seg--short { background: var(--color-border); }

.answer-first {
  padding-block: var(--space-xl);
  background: var(--color-paper);
}

.answer-first__inner {
  max-width: var(--intel-measure);
}

.answer-first h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 500;
  color: var(--color-ink);
  margin: 0 0 var(--space-md);
}

.answer-first__lead {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-graphite);
  margin: 0 0 var(--space-md);
}

.worlds-grid {
  display: grid;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .worlds-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .worlds-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.worlds-grid__item {
  padding: var(--space-lg) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.worlds-grid__item h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-ink);
  margin: 0 0 var(--space-xs);
}

.worlds-grid__item p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-body);
}

.worlds-grid__status {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: var(--intel-caption);
  color: var(--color-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.article-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  min-height: 100%;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

a.article-card:hover,
a.article-card:focus-visible {
  border-color: var(--color-champagne);
  box-shadow: 0 4px 20px rgba(17, 19, 21, 0.06);
  color: inherit;
}

.article-card__num {
  font-size: var(--intel-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-champagne);
}

.article-card__title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-ink);
  margin: 0;
  line-height: 1.35;
}

.article-card__note {
  font-size: var(--intel-caption);
  color: var(--color-muted);
  margin: 0;
}

.article-card--active {
  border-left: 2px solid var(--color-champagne);
}

.article-card--planned {
  cursor: default;
  opacity: 0.88;
}

.article-card--planned .article-card__title {
  color: var(--color-graphite);
}

span.article-card--planned,
.article-card--planned:not(a) {
  pointer-events: none;
}

.pathway-list {
  list-style: none;
  margin: var(--space-md) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-sm);
}

@media (min-width: 768px) {
  .pathway-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pathway-list li {
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  color: var(--color-body);
}

.pathway-list strong {
  display: block;
  color: var(--color-ink);
  margin-bottom: 0.25rem;
}

.evidence-promise {
  padding: var(--space-lg) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-champagne);
  border-radius: var(--radius);
}

.evidence-promise h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-ink);
  margin: 0 0 var(--space-sm);
}

.evidence-promise p {
  margin: 0 0 var(--space-sm);
  color: var(--color-body);
}

.evidence-promise p:last-child {
  margin-bottom: 0;
}

.journey-cta {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

@media (min-width: 640px) {
  .journey-cta {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .journey-cta {
    grid-template-columns: repeat(4, 1fr);
  }
}

.journey-cta__item {
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  color: var(--color-body);
  min-height: 44px;
}

.journey-cta__item strong {
  display: block;
  color: var(--color-ink);
  margin-bottom: 0.25rem;
}

/* ============================================================
   Article chrome
   ============================================================ */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  align-items: center;
  margin: 0 0 var(--space-md);
  padding: 0;
  list-style: none;
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-border);
  pointer-events: none;
}

.breadcrumb a {
  color: var(--color-graphite);
  text-decoration: none;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-champagne);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-ink);
}

.article-masthead {
  padding-block: var(--space-lg) var(--space-xl);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.article-masthead__grid {
  display: grid;
  gap: var(--space-lg);
  align-items: start;
}

@media (min-width: 900px) {
  .article-masthead__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.article-masthead h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  line-height: 1.12;
  color: var(--color-ink);
  margin: 0 0 var(--space-sm);
}

.article-masthead__dek {
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--color-body);
  margin: 0 0 var(--space-md);
  max-width: var(--intel-measure);
}

.article-masthead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-sm);
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

.article-masthead__media {
  aspect-ratio: 16 / 10;
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.article-masthead__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.reading-nav {
  position: sticky;
  top: 4.5rem;
  z-index: 10;
  margin-block: var(--space-md);
  padding: var(--space-sm);
  background: rgba(251, 250, 247, 0.96);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

/* Keep section headings clear of sticky header + reading nav.
   scroll-padding must live on the scrollport (html), not body. */
html:has(body.intelligence-article) {
  scroll-padding-top: 14rem;
}

body.intelligence-article main section[id],
body.intelligence-article .article-masthead,
body.intelligence-article .hero {
  scroll-margin-top: 14rem;
}

@media (max-width: 1023px) {
  html:has(body.intelligence-article) {
    scroll-padding-top: 7rem;
  }

  body.intelligence-article main section[id],
  body.intelligence-article .article-masthead,
  body.intelligence-article .hero {
    scroll-margin-top: 7rem;
  }
}

.reading-nav__list {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.reading-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: var(--color-graphite);
  white-space: nowrap;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.reading-nav a:hover,
.reading-nav a:focus-visible {
  border-color: var(--color-border);
  background: var(--color-paper);
  color: var(--color-ink);
}

.reading-nav a[aria-current="true"] {
  border-color: var(--color-champagne);
  background: var(--intel-champagne-soft);
  color: var(--color-ink);
}

/* ============================================================
   Prose & editorial components
   ============================================================ */

.intelligence-article .prose,
.intelligence-page .prose {
  max-width: var(--intel-measure);
}

.prose p {
  margin: 0 0 var(--space-md);
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.5vw, 1.875rem);
  font-weight: 500;
  color: var(--color-ink);
  margin: var(--space-xl) 0 var(--space-md);
  line-height: 1.25;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-graphite);
  margin: var(--space-lg) 0 var(--space-sm);
  line-height: 1.35;
}

.prose ul,
.prose ol {
  margin: 0 0 var(--space-md);
  padding-left: 1.25rem;
}

.prose li {
  margin-bottom: var(--space-xs);
}

.prose .lead {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-graphite);
}

.prose .caption {
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

.factory-note {
  margin: var(--space-lg) 0;
  padding: var(--space-lg) var(--space-md);
  background: var(--color-surface);
  color: var(--color-body);
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-champagne);
  border-radius: var(--radius);
  position: relative;
}

.factory-note::before {
  content: "\201C";
  position: absolute;
  top: var(--space-sm);
  left: var(--space-md);
  font-family: var(--font-serif);
  font-size: 2.25rem;
  line-height: 1;
  color: var(--color-champagne);
  opacity: 0.35;
}

.factory-note__title {
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 var(--space-xs);
  padding-left: var(--space-lg);
}

.factory-note__attribution {
  font-size: var(--intel-caption);
  font-style: italic;
  color: var(--color-muted);
  margin: 0 0 var(--space-sm);
  padding-left: var(--space-lg);
}

.factory-note__body {
  margin: 0;
  padding-left: var(--space-lg);
}

.myth-card {
  padding: var(--space-lg) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  margin: var(--space-lg) 0;
}

.myth-card__myth {
  text-decoration: line-through;
  opacity: 0.65;
  color: var(--color-muted);
  margin: 0 0 var(--space-sm);
}

.myth-card__reality {
  margin: 0;
  color: var(--color-graphite);
}

.myth-card__reality strong {
  color: var(--color-ink);
}

/* Axis explorer — single <details> source; accordion mobile, sidebar desktop */
.axis-explorer {
  margin-top: var(--space-md);
}

.axis-explorer__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.axis-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.axis-item__summary {
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-weight: 600;
  color: var(--color-ink);
  list-style: none;
  display: flex;
  align-items: center;
}

.axis-item__summary::-webkit-details-marker {
  display: none;
}

.axis-item__summary::after {
  content: "+";
  margin-left: auto;
  color: var(--color-champagne-deep);
  font-weight: 600;
}

.axis-item[open] > .axis-item__summary::after {
  content: "–";
}

.axis-item__panel {
  padding: 0 var(--space-md) var(--space-md);
  border-top: 1px solid var(--color-border);
}

.axis-item[open] > .axis-item__summary {
  border-left: 2px solid var(--color-champagne);
  background: var(--intel-champagne-soft);
}

.axis-panel__grid {
  display: grid;
  gap: var(--space-md);
  padding-top: var(--space-md);
}

@media (min-width: 640px) {
  .axis-panel__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.axis-panel__grid h4 {
  font-size: var(--intel-caption);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin: 0 0 var(--space-xs);
}

.caption {
  margin: var(--space-sm) 0 0;
  font-size: var(--intel-caption);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* Desktop: summary rail + open panel pinned to the right column.
   Avoid display:contents + grid-row placement — non-first open panels
   were painting below the rail and leaving a blank right column. */
@media (min-width: 1024px) {
  .axis-explorer__items {
    position: relative;
    display: grid;
    grid-template-columns: minmax(220px, 5fr) minmax(0, 7fr);
    gap: var(--space-md) var(--space-lg);
    align-items: start;
    min-height: 28rem;
  }

  .axis-item {
    grid-column: 1;
    border: none;
    background: transparent;
    border-radius: 0;
  }

  .axis-item + .axis-item {
    margin-top: var(--space-xs);
  }

  .axis-item__summary {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
  }

  .axis-item[open] > .axis-item__summary {
    border-color: var(--color-champagne);
  }

  .axis-item__summary::after,
  .axis-item[open] > .axis-item__summary::after {
    content: none;
  }

  .axis-item__panel {
    display: none;
  }

  .axis-item[open] > .axis-item__panel {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    width: calc((100% - var(--space-lg)) * 7 / 12);
    max-width: calc(100% - 220px - var(--space-lg));
    padding: var(--space-lg) var(--space-md);
    border: 1px solid var(--color-border);
    border-top: 2px solid var(--color-champagne);
    border-radius: var(--radius);
    background: var(--color-surface);
  }
}

.no-js .axis-item__panel {
  display: block !important;
}

.no-js .axis-item {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  margin-bottom: var(--space-xs);
}

/* Virgin / processed journey */
.journey-steps {
  display: grid;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

@media (min-width: 768px) {
  .journey-steps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.journey-step {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  opacity: 0.55;
  transition: opacity var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.journey-step.is-active {
  opacity: 1;
  border-color: var(--color-champagne);
  box-shadow: 0 4px 20px rgba(17, 19, 21, 0.06);
}

.journey-step__num {
  font-size: var(--intel-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: var(--space-xs);
}

.journey-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.journey-nav button {
  min-height: 44px;
  min-width: 44px;
  padding: var(--space-xs) var(--space-sm);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-graphite);
  transition: border-color var(--transition), background var(--transition);
}

.journey-nav button:hover,
.journey-nav button:focus-visible {
  border-color: var(--color-champagne);
}

.journey-nav button[aria-current="step"] {
  border-color: var(--color-champagne);
  background: var(--intel-champagne-soft);
  color: var(--color-ink);
  font-weight: 600;
}

/* Evidence drawer */
.evidence-drawer {
  margin: var(--space-md) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.evidence-drawer summary {
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-weight: 600;
  color: var(--color-ink);
  list-style: none;
}

.evidence-drawer summary::-webkit-details-marker {
  display: none;
}

.evidence-drawer__body {
  padding: 0 var(--space-md) var(--space-md);
  border-top: 1px solid var(--color-border);
}

.evidence-drawer dl {
  margin: var(--space-sm) 0 0;
  display: grid;
  gap: var(--space-sm);
}

.evidence-drawer dt {
  font-size: var(--intel-caption);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}

.evidence-drawer dd {
  margin: 0;
  color: var(--color-body);
}

/* Teaching analogy & figures */
.teaching-analogy {
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.figure-diagram,
.figure-block {
  margin: var(--space-lg) 0;
}

.figure-diagram img,
.figure-diagram svg,
.figure-block img,
.figure-block svg {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.figure-diagram figcaption,
.figure-block figcaption {
  margin-top: var(--space-xs);
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

/* Ratio visualizer */
.ratio-viz {
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.ratio-viz__disclaimer {
  font-size: var(--intel-caption);
  font-weight: 600;
  color: var(--color-graphite);
  margin: 0 0 var(--space-sm);
}

.ratio-viz__controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.ratio-viz__controls button {
  min-height: 44px;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-graphite);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.ratio-viz__controls button:hover,
.ratio-viz__controls button:focus-visible {
  border-color: var(--color-champagne);
}

.ratio-viz__controls button[aria-pressed="true"] {
  border-color: var(--color-champagne);
  background: var(--intel-champagne-soft);
  color: var(--color-ink);
  font-weight: 600;
}

.ratio-viz__bar {
  display: flex;
  height: 2.5rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.ratio-viz__segment {
  transition: flex-grow var(--transition);
}

.ratio-viz__segment--long {
  background: var(--color-graphite);
}

.ratio-viz__segment--mid {
  background: var(--color-muted);
}

.ratio-viz__segment--short {
  background: var(--color-border);
}

.ratio-viz__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  margin-top: var(--space-sm);
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

.ratio-viz__status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Draw compare */
.draw-compare {
  display: grid;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

@media (min-width: 640px) {
  .draw-compare {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .draw-compare {
    grid-template-columns: repeat(4, 1fr);
  }
}

.draw-compare__item {
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
}

.draw-compare__item img,
.draw-compare__item svg {
  margin-inline: auto;
  margin-bottom: var(--space-sm);
}

.draw-compare__label {
  font-size: var(--intel-caption);
  font-weight: 600;
  color: var(--color-ink);
  margin: 0;
}

/* Callouts */
.callout {
  padding: var(--space-md);
  background: var(--intel-champagne-soft);
  border-left: 2px solid var(--color-champagne);
  margin: var(--space-lg) 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.callout--warn {
  background: rgba(156, 127, 74, 0.08);
  border-left-color: var(--color-champagne-deep);
}

/* Checklist */
.checklist {
  list-style: none;
  margin: var(--space-md) 0;
  padding: 0;
}

.checklist li {
  margin-bottom: var(--space-sm);
}

.checklist label {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  min-height: 44px;
  cursor: pointer;
  color: var(--color-body);
}

.checklist input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
  accent-color: var(--color-graphite);
}

.checklist-print-btn {
  min-height: 44px;
  margin-top: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  background: transparent;
  border: 1px solid var(--color-ink);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.checklist-print-btn:hover,
.checklist-print-btn:focus-visible {
  background: var(--color-ink);
  color: var(--color-paper);
}

/* Tables */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-md) 0;
}

.data-table {
  width: 100%;
  min-width: 20rem;
  border-collapse: collapse;
  margin: 0;
  font-size: 0.9375rem;
}

.data-table th,
.data-table td {
  padding: var(--space-sm);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.data-table th {
  font-size: var(--intel-caption);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  background: var(--intel-champagne-soft);
}

@media (max-width: 639px) {
  .data-table thead {
    display: none;
  }

  .data-table tr {
    display: block;
    margin-bottom: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-sm);
  }

  .data-table td {
    display: block;
    border: none;
    padding: var(--space-xs) 0;
  }

  .data-table td::before {
    content: attr(data-label);
    display: block;
    font-size: var(--intel-caption);
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 0.15rem;
  }
}

/* Author strip */
.author-strip {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.author-strip__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  color: var(--color-champagne);
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  flex-shrink: 0;
  overflow: hidden;
}

.author-strip__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-strip__name {
  font-weight: 600;
  color: var(--color-ink);
  margin: 0;
}

.author-strip__role {
  margin: 0;
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

.two-col {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
  }
}

/* Reading list & references */
.reading-list {
  list-style: none;
  margin: var(--space-md) 0;
  padding: 0;
  display: grid;
  gap: var(--space-sm);
}

@media (min-width: 768px) {
  .reading-list {
    grid-template-columns: 1fr 1fr;
  }
}

.reading-list li {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  font-size: 0.9375rem;
  color: var(--color-body);
}

.reading-list span,
.reading-list strong {
  display: block;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 0.25rem;
}

.references ol {
  padding-left: 1.25rem;
  margin: var(--space-md) 0 0;
}

.references li {
  margin-bottom: var(--space-sm);
  color: var(--color-body);
  font-size: 0.9375rem;
}

.review-record {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  font-size: var(--intel-caption);
  color: var(--color-muted);
}

.mantra {
  font-family: var(--font-serif);
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-style: italic;
  margin: var(--space-lg) 0 0;
  color: var(--color-champagne-deep);
}

/* Final principle — controlled dark band */
.section--final {
  padding-block: var(--space-2xl);
  text-align: center;
  background: var(--color-dark);
  color: var(--color-on-dark-muted);
}

.section--final h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 500;
  color: var(--color-on-dark);
  margin: 0 0 var(--space-md);
}

.section--final p {
  max-width: var(--intel-measure);
  margin-inline: auto;
}

.section--final .mantra {
  color: var(--color-champagne);
}

.section--final :focus-visible {
  outline-color: var(--color-paper);
}

/* Section reveal hook (JS sets initial opacity) */
.intelligence-article [data-reveal],
.intelligence-page [data-reveal] {
  will-change: opacity, transform;
}

/* No-JS fallbacks — all axis panels readable */
.no-js .axis-item {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  margin-bottom: var(--space-xs);
}

.no-js .axis-item__panel {
  display: block !important;
}

.no-js .journey-step {
  opacity: 1;
}

/* ============================================================
   Print
   ============================================================ */

@media print {
  .site-header,
  .nav-mobile,
  .nav-desktop,
  .nav-utility,
  .reading-nav,
  .journey-nav,
  .ratio-viz__controls,
  .checklist-print-btn,
  [data-print-checklist],
  .skip-link {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  .intelligence-article,
  .intelligence-page {
    background: #fff;
  }

  .section--final {
    background: #fff !important;
    color: #000 !important;
    border-top: 2px solid #000;
  }

  .section--final h2,
  .section--final .mantra {
    color: #000 !important;
  }

  .factory-note {
    border: 1px solid #000;
    page-break-inside: avoid;
  }

  .evidence-drawer[open] .evidence-drawer__body,
  .evidence-drawer details[open] .evidence-drawer__body {
    display: block !important;
  }

  .axis-explorer__items {
    display: block !important;
  }

  .axis-item {
    display: block !important;
    border: 1px solid #ccc;
    margin-bottom: 1rem;
    page-break-inside: avoid;
  }

  .axis-item__panel {
    display: block !important;
  }

  .axis-item__summary::after {
    content: none !important;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .article-card--planned {
    opacity: 1;
  }

  /* Checklist-only print mode */
  body.is-print-checklist .intelligence-article > *:not(#buyer-checklist),
  body.is-print-checklist .intelligence-article section:not(#buyer-checklist) {
    display: none !important;
  }

  body.is-print-checklist #buyer-checklist {
    display: block !important;
    padding: 0;
  }

  body.is-print-checklist .checklist input[type="checkbox"] {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}