/* =============================================================================
   SARD Components
   All reusable UI components, named in BEM (block__element--modifier).
   No hex values here — every color resolves to a token from tokens.css.

   Contents:
     Buttons            .btn
     Verification       .v-label
     Logo               .site-logo
     Header             .site-header, .site-nav, .hamburger, .mobile-nav
     Layout             .section-header, .split-layout, .content-layout, .media-frame
     Navigation         .breadcrumb
     Page hero          .page-hero  (inner pages: dark banner)
     Pillar hero        .pillar-hero, .pillar-badge, .pillar-nav
     Pills              .pill-list, .pill
     Timeline           .timeline, .timeline__step
     Framework strip    .framework-strip
     Pillar card        .pillar-card
     Aside card         .aside-card
     Scheme list        .scheme-list, .scheme-item
     Gap list           .gap-list, .gap-item
     Coverage grid      .coverage-grid, .coverage-item
     Indicator list     .indicator-list, .indicator-item
     Related pillars    .related-pillars, .related-pillar-card
     CTA banner         .cta-banner
     Site footer        .site-footer
   ============================================================================= */


/* =============================================================================
   BUTTONS
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border: 1.5px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.1;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color     var(--transition-fast),
    color            var(--transition-fast),
    transform        var(--transition-fast),
    box-shadow       var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-terracotta);
  border-color: var(--color-terracotta);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-link-hover);
  border-color: var(--color-link-hover);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: transparent;
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
}

.btn--secondary:hover {
  background-color: var(--color-terracotta);
  border-color: var(--color-terracotta);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--ghost {
  background-color: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn--ghost:hover {
  background-color: var(--color-clay);
  border-color: var(--color-clay);
  color: var(--color-ink);
}

.btn--inverse {
  background-color: var(--color-paper);
  border-color: var(--color-paper);
  color: var(--color-ink);
}

.btn--inverse:hover {
  background-color: var(--color-clay);
  border-color: var(--color-clay);
}

.btn--outline-inverse {
  background-color: transparent;
  border-color: rgba(245, 241, 234, 0.55);
  color: var(--color-paper);
}

.btn--outline-inverse:hover {
  background-color: rgba(245, 241, 234, 0.12);
  border-color: var(--color-paper);
}

.btn--sm {
  min-height: 38px;
  padding: 0.45rem 0.9rem;
  font-size: var(--text-xs);
}

.btn--lg {
  min-height: 52px;
  padding: 0.85rem 1.75rem;
  font-size: var(--text-base);
}


/* =============================================================================
   VERIFICATION LABELS
   ============================================================================= */

.v-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.22em 0.65em;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
  vertical-align: middle;
  line-height: 1.7;
}

.v-label--verified {
  background-color: var(--color-terracotta-deep);
  border-color: var(--color-terracotta-deep);
  color: var(--color-white);
}

.v-label--methodology {
  background-color: var(--color-pillar-slate);
  border-color: var(--color-pillar-slate);
  color: var(--color-white);
}

.v-label--illustrative {
  background-color: var(--color-ochre-subtle);
  border-color: var(--color-ochre);
  color: var(--color-ochre-text);
}

.v-label--forthcoming {
  background-color: var(--color-clay);
  border-color: var(--color-ink);
  color: var(--color-ink);
}


/* =============================================================================
   SITE LOGO
   ============================================================================= */

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-ink);
  flex-shrink: 0;
}

.site-logo:hover {
  color: var(--color-ink);
  text-decoration: none;
}

.site-logo__mark {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  user-select: none;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1;
}

.site-logo__name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  line-height: 1;
}

.site-logo__tagline {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.2;
  max-width: 200px;
}

.site-logo--inverse .site-logo__mark {
  background-color: var(--color-paper);
  color: var(--color-ink);
}

.site-logo--inverse .site-logo__name {
  color: var(--color-paper);
}

.site-logo--inverse .site-logo__tagline {
  color: rgba(245, 241, 234, 0.5);
}


/* =============================================================================
   SITE HEADER
   ============================================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);
  background-color: rgba(245, 241, 234, 0.95);
  border-bottom: 1px solid var(--color-border);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: var(--space-4);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.site-nav {
  display: none;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}

.site-nav__link {
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    color            var(--transition-fast);
}

.site-nav__link:hover {
  background-color: var(--color-clay);
  color: var(--color-ink);
  text-decoration: none;
}

.site-nav__link--active {
  background-color: var(--color-clay);
  color: var(--color-ink);
  font-weight: 600;
}

.site-header__actions {
  display: none;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 2px;
  transition:
    transform var(--transition-base),
    opacity   var(--transition-base);
  transform-origin: center;
}

.hamburger--open .hamburger__line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger--open .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger--open .hamburger__line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: var(--z-dropdown);
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-6px);
  transition:
    visibility  var(--transition-base),
    opacity     var(--transition-base),
    transform   var(--transition-base);
  pointer-events: none;
}

.mobile-nav--open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-4);
}

.mobile-nav__list {
  display: grid;
  gap: 2px;
  margin-bottom: var(--space-4);
}

.mobile-nav__link {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-body);
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    color            var(--transition-fast);
}

.mobile-nav__link:hover {
  background-color: var(--color-clay);
  color: var(--color-ink);
  text-decoration: none;
}

.mobile-nav__link--active {
  background-color: var(--color-clay);
  color: var(--color-ink);
  font-weight: 600;
}

.mobile-nav__actions {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.mobile-nav__actions .btn {
  width: 100%;
  justify-content: center;
}

@media (min-width: 640px) {
  .site-header__inner,
  .mobile-nav__inner {
    padding-inline: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .site-nav,
  .site-header__actions {
    display: flex;
  }

  .hamburger,
  .mobile-nav {
    display: none !important;
  }

  .site-header__inner {
    padding-inline: var(--space-8);
  }
}


/* =============================================================================
   LAYOUT UTILITIES
   ============================================================================= */

/* Section header — heading block with optional eyebrow and intro paragraph */
.section-header {
  margin-block-end: var(--space-12);
}

.section-header--center {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
}

.section-header > .eyebrow {
  margin-block-end: var(--space-3);
}

.section-header > .v-label {
  margin-block-end: var(--space-4);
}

.section-header > h2 {
  margin-block-start: var(--space-2);
}

.section-header > p {
  margin-block-start: var(--space-4);
  max-width: 64ch;
}

.section-header--center > p {
  margin-inline: auto;
}

/* Split layout — content + illustration, two columns on desktop */
.split-layout {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .split-layout {
    grid-template-columns: 1fr 1fr;
  }

  .split-layout--media-left .split-layout__media {
    order: -1;
  }
}

/* Content + aside — editorial two-column with sidebar */
.content-layout {
  display: grid;
  gap: var(--space-10);
  align-items: start;
}

@media (min-width: 1024px) {
  .content-layout {
    grid-template-columns: 1fr 300px;
  }
}

/* Media frame — SVG/illustration container */
.media-frame {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.media-frame img {
  width: 100%;
  display: block;
}


/* =============================================================================
   BREADCRUMB
   ============================================================================= */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35em;
  margin-block-end: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-ink);
}

.breadcrumb__sep {
  color: var(--color-border-strong);
  user-select: none;
}

/* Breadcrumb on dark (page-hero) backgrounds */
.breadcrumb--inverse {
  color: rgba(245, 241, 234, 0.55);
}

.breadcrumb--inverse a {
  color: rgba(245, 241, 234, 0.55);
}

.breadcrumb--inverse a:hover {
  color: var(--color-paper);
}

.breadcrumb--inverse .breadcrumb__sep {
  color: rgba(245, 241, 234, 0.3);
}


/* =============================================================================
   PAGE HERO — inner pages (dark ink background, centered)
   ============================================================================= */

.page-hero {
  padding-block: var(--space-16) var(--space-12);
  background-color: var(--color-ink);
  color: var(--color-text-inverse);
}

.page-hero__inner {
  max-width: var(--container-narrow);
  margin-inline: auto;
  text-align: center;
}

.page-hero h1 {
  color: var(--color-paper);
  margin-block-start: var(--space-2);
}

.page-hero p {
  margin-block-start: var(--space-5);
  color: rgba(245, 241, 234, 0.72);
  font-size: var(--text-lg);
  max-width: 56ch;
  margin-inline: auto;
}


/* =============================================================================
   PILLAR HERO — pillar deep pages
   Color accent (border-top) is set via --pillar-color on .page-pillar--{name}
   ============================================================================= */

.pillar-hero {
  padding-block: var(--space-16) var(--space-12);
  background-color: var(--color-paper);
  border-top: 5px solid var(--pillar-color, var(--color-border-strong));
}

.pillar-hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-block-end: var(--space-5);
  flex-wrap: wrap;
}

.pillar-hero h1 {
  max-width: 20ch;
  margin-block-start: 0;
}

.pillar-hero .lead {
  margin-block-start: var(--space-5);
  max-width: 62ch;
}

/* Pillar number badge */
.pillar-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3em 0.8em;
  border-radius: var(--radius-pill);
  background-color: var(--pillar-color, var(--color-ink));
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Pillar-to-pillar navigation strip */
.pillar-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block-start: var(--space-10);
  padding-block-start: var(--space-6);
  border-top: 1px solid var(--color-border);
  gap: var(--space-4);
}

.pillar-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.pillar-nav__link:hover {
  color: var(--color-ink);
}

.pillar-nav__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
  font-family: var(--font-body);
}

/* Pillar page-level color variables — set on <body> or <main> */
.page-pillar--water  { --pillar-color: var(--color-pillar-water); }
.page-pillar--field  { --pillar-color: var(--color-pillar-field); }
.page-pillar--brick  { --pillar-color: var(--color-pillar-brick); }
.page-pillar--slate  { --pillar-color: var(--color-pillar-slate); }


/* =============================================================================
   PILLS — tag-style tokens
   ============================================================================= */

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block-start: var(--space-6);
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border-strong);
  background-color: var(--color-surface);
  color: var(--color-text-body);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
}


/* =============================================================================
   TIMELINE — 36-month cycle
   ============================================================================= */

.timeline {
  display: grid;
  gap: var(--space-6);
  counter-reset: timeline-steps;
}

.timeline__step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-5);
  align-items: start;
}

.timeline__marker {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  flex-shrink: 0;
}

.timeline__period {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-block-end: var(--space-2);
}

.timeline__content h3 {
  margin-block-end: var(--space-2);
}

.timeline__content p {
  font-size: var(--text-base);
}

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

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

  .timeline__step {
    grid-template-columns: 1fr;
  }

  .timeline__marker {
    margin-block-end: var(--space-4);
  }
}


/* =============================================================================
   FRAMEWORK STRIP — homepage stat band (ink background)
   ============================================================================= */

.framework-strip {
  padding-block: var(--space-16);
  background-color: var(--color-ink);
}

.framework-strip__grid {
  display: grid;
  gap: var(--space-10);
  text-align: center;
}

.framework-strip__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.framework-strip__number {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 700;
  color: var(--color-paper);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-block: var(--space-3) var(--space-2);
}

.framework-strip__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(245, 241, 234, 0.6);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  max-width: 18ch;
  line-height: var(--leading-snug);
}

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

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


/* =============================================================================
   PILLAR CARD — used on homepage overview + model landing
   ============================================================================= */

.pillars-grid {
  display: grid;
  gap: var(--space-5);
}

.pillar-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--pillar-color, var(--color-border-strong));
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition:
    box-shadow   var(--transition-fast),
    transform    var(--transition-fast);
}

.pillar-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

.pillar-card__number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  margin-block-end: var(--space-3);
}

.pillar-card h3 {
  margin-block-end: var(--space-3);
  font-size: var(--text-lg);
}

.pillar-card p {
  font-size: var(--text-sm);
  flex: 1;
  max-width: none;
}

.pillar-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-block-start: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--pillar-color, var(--color-terracotta));
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Convergence card — no pillar color accent, distinguished by style */
.pillar-card--convergence {
  border-left-color: var(--color-border-strong);
  background-color: var(--color-clay);
}

.pillar-card--convergence .pillar-card__cta {
  color: var(--color-text-muted);
}

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

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


/* =============================================================================
   ASIDE CARD — editorial sidebar for pillar pages
   ============================================================================= */

.aside-card {
  padding: var(--space-6);
  background-color: var(--color-clay);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--pillar-color, var(--color-border-strong));
}

.aside-card > .v-label {
  margin-block-end: var(--space-4);
}

.aside-card__heading {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-ink);
  line-height: var(--leading-snug);
  margin-block: var(--space-2) var(--space-4);
}

.aside-card p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: none;
}

.aside-card p + p {
  margin-block-start: var(--space-4);
}


/* =============================================================================
   SCHEME LIST — public scheme convergence table
   ============================================================================= */

.scheme-list {
  display: grid;
  gap: var(--space-3);
  margin-block-start: var(--space-8);
}

.scheme-item {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--space-5);
  row-gap: var(--space-1);
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  align-items: start;
}

.scheme-item__abbr {
  grid-row: span 2;
  align-self: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-pillar-slate);
  background-color: var(--color-clay);
  padding: 0.3em 0.65em;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.scheme-item__name {
  font-weight: 600;
  color: var(--color-ink);
  font-size: var(--text-sm);
  line-height: 1.3;
}

.scheme-item__scope {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  line-height: var(--leading-relaxed);
  max-width: none;
}


/* =============================================================================
   GAP LIST — partner gap analysis
   ============================================================================= */

.gap-list {
  display: grid;
  gap: var(--space-5);
  margin-block-start: var(--space-8);
}

.gap-item {
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.gap-item__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-block-end: var(--space-3);
}

.gap-item h3 {
  font-size: var(--text-lg);
  margin-block-end: var(--space-3);
}

.gap-item p {
  font-size: var(--text-sm);
  max-width: none;
}

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


/* =============================================================================
   COVERAGE GRID — what a pillar includes
   ============================================================================= */

.coverage-grid {
  display: grid;
  gap: var(--space-4);
  margin-block-start: var(--space-8);
}

.coverage-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 0 var(--space-4);
  align-items: start;
}

.coverage-item__number {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-border-strong);
  line-height: 1;
  padding-top: 0.1em;
  font-variant-numeric: tabular-nums;
}

.coverage-item__name {
  font-weight: 600;
  color: var(--color-ink);
  font-size: var(--text-base);
  line-height: var(--leading-snug);
}

.coverage-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  max-width: none;
  line-height: var(--leading-relaxed);
}

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


/* =============================================================================
   INDICATOR LIST — measurement framework
   ============================================================================= */

.indicator-list {
  display: grid;
  gap: var(--space-3);
  margin-block-start: var(--space-6);
}

.indicator-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  align-items: flex-start;
}

.indicator-item__bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--pillar-color, var(--color-terracotta));
  flex-shrink: 0;
  margin-top: 0.45em;
}

.indicator-item__text {
  flex: 1;
}

.indicator-item__name {
  font-weight: 600;
  color: var(--color-ink);
  font-size: var(--text-sm);
}

.indicator-item__note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-block-start: var(--space-1);
  max-width: none;
  line-height: var(--leading-normal);
}


/* =============================================================================
   RELATED PILLARS — cross-pillar navigation
   ============================================================================= */

.related-pillars {
  display: grid;
  gap: var(--space-5);
  margin-block-start: var(--space-8);
}

.related-pillar-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--card-pillar-color, var(--color-border-strong));
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition:
    box-shadow  var(--transition-fast),
    transform   var(--transition-fast);
}

.related-pillar-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

/* Set --card-pillar-color on each card, not from body context */
.related-pillar-card--water { --card-pillar-color: var(--color-pillar-water); }
.related-pillar-card--field { --card-pillar-color: var(--color-pillar-field); }
.related-pillar-card--brick { --card-pillar-color: var(--color-pillar-brick); }
.related-pillar-card--slate { --card-pillar-color: var(--color-pillar-slate); }

.related-pillar-card__tag {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: 500;
  color: var(--card-pillar-color, var(--color-text-muted));
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.related-pillar-card h3 {
  font-size: var(--text-lg);
  margin: 0;
}

.related-pillar-card p {
  font-size: var(--text-sm);
  max-width: none;
  line-height: var(--leading-relaxed);
}

.related-pillar-card__arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-block-start: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--card-pillar-color, var(--color-text-muted));
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

@media (min-width: 768px) {
  .related-pillars {
    grid-template-columns: repeat(3, 1fr);
  }
}


/* =============================================================================
   CTA BANNER
   ============================================================================= */

.cta-banner {
  padding-block: var(--space-20);
  background-color: var(--color-ink);
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-paper);
  max-width: 22ch;
  margin-inline: auto;
}

.cta-banner p {
  max-width: 56ch;
  margin: var(--space-5) auto 0;
  color: rgba(245, 241, 234, 0.7);
  font-size: var(--text-lg);
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin-block-start: var(--space-8);
}


/* =============================================================================
   SITE FOOTER
   ============================================================================= */

.site-footer {
  padding-block: var(--space-16) var(--space-8);
  background-color: var(--color-ink);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-10);
  margin-block-end: var(--space-12);
}

.site-footer__desc {
  margin-block-start: var(--space-4);
  font-size: var(--text-sm);
  color: rgba(245, 241, 234, 0.55);
  max-width: 340px;
  line-height: var(--leading-relaxed);
  max-width: none;
}

.site-footer__col-heading {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245, 241, 234, 0.38);
  margin-block-end: var(--space-5);
}

.site-footer__links {
  display: grid;
  gap: var(--space-3);
}

.site-footer__link {
  font-size: var(--text-sm);
  color: rgba(245, 241, 234, 0.62);
  text-decoration: none;
  line-height: 1.4;
  transition: color var(--transition-fast);
}

.site-footer__link:hover {
  color: var(--color-paper);
}

.site-footer__contact-row {
  display: flex;
  gap: var(--space-3);
  margin-block-end: var(--space-3);
  font-size: var(--text-sm);
  color: rgba(245, 241, 234, 0.62);
  align-items: flex-start;
}

.site-footer__contact-row:last-child {
  margin-block-end: 0;
}

.site-footer__contact-label {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(245, 241, 234, 0.35);
  flex-shrink: 0;
  padding-top: 0.1em;
}

.site-footer__contact-value a {
  color: rgba(245, 241, 234, 0.62);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-footer__contact-value a:hover {
  color: var(--color-paper);
}

.site-footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-block-start: var(--space-6);
  border-top: 1px solid rgba(245, 241, 234, 0.1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(245, 241, 234, 0.35);
}

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

@media (min-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1.1fr 1.2fr;
  }

  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}


/* =============================================================================
   SITE HERO — homepage only
   Paper background, two-column (text + illustration), editorial feel.
   ============================================================================= */

.site-hero {
  padding-block: var(--space-20) var(--space-16);
  background-color: var(--color-paper);
  position: relative;
  overflow: hidden;
}

/* Decorative background circle — clay at low opacity, purely visual */
.site-hero::before {
  content: '';
  position: absolute;
  top: -140px;
  right: -100px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background-color: var(--color-clay);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.site-hero .container {
  position: relative;
  z-index: 1;
}

.site-hero__layout {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

.site-hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-block-end: var(--space-5);
}

.site-hero__label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-terracotta);
  flex-shrink: 0;
}

.site-hero h1 {
  margin-block-end: var(--space-5);
}

.site-hero__lead {
  font-size: clamp(var(--text-base), 2vw, var(--text-lg));
  color: var(--color-text-body);
  line-height: var(--leading-relaxed);
  max-width: 54ch;
}

.site-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-block-start: var(--space-8);
}

@media (min-width: 1024px) {
  .site-hero__layout {
    grid-template-columns: 1fr 1fr;
  }
}

/* Pillars grid footer link */
.pillars-grid__cta {
  display: flex;
  justify-content: center;
  margin-block-start: var(--space-10);
}

/* Section divider rule — thin ochre line used as a design element on deep pages */
.section-rule {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-12);
}

/* Prose content wrapper — constrains line length for editorial readability */
.prose {
  max-width: 68ch;
}

.prose p + p {
  margin-block-start: var(--space-5);
}

.prose h2,
.prose h3 {
  margin-block: var(--space-8) var(--space-4);
}

.prose h2:first-child,
.prose h3:first-child {
  margin-block-start: 0;
}