/* =============================================================
   Case study pages — shared styles
   Pair with tokens.css + components.css
   ============================================================= */

body {
  background: var(--neutral-0);
  color: var(--fg-primary);
}

/* ——— Page chrome inherited from index.html ———————————————————— */
.container {
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding-left: var(--space-10);
  padding-right: var(--space-10);
}
.container--reading {
  max-width: 920px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--oa-teal-700);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ——— Header (same as marketing landing) ———————————————————————— */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-4) 0;
}
.site-header__logo {
  height: 56px;
  display: block;
}
.site-nav {
  display: flex;
  gap: var(--space-6);
  margin-left: var(--space-6);
}
.site-nav a {
  color: var(--fg-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) 0;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--oa-navy-950);
  border-bottom-color: var(--oa-teal-700);
}
.site-header__cta {
  margin-left: auto;
  display: flex;
  gap: var(--space-3);
  align-items: center;
}
.arrow {
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease-out);
}
.c-btn:hover .arrow {
  transform: translateX(3px);
}

/* ——— Breadcrumb / back link —————————————————————————————————— */
.crumbs {
  padding: var(--space-6) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--fg-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.crumbs a {
  color: var(--fg-tertiary);
  text-decoration: none;
  transition: color var(--dur-fast);
}
.crumbs a:hover {
  color: var(--oa-teal-700);
}
.crumbs__sep {
  opacity: 0.45;
}
.crumbs__here {
  color: var(--oa-navy-950);
}

/* ——— Hero ———————————————————————————————————————————————————— */
.cs-hero {
  padding: var(--space-12) 0 var(--space-16);
}
.cs-hero__head {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--space-16);
  align-items: end;
  padding-bottom: var(--space-10);
  margin-bottom: var(--space-10);
  border-bottom: 1px solid var(--border-subtle);
}
.cs-hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.032em;
  line-height: 0.95;
  color: var(--oa-navy-950);
  font-size: clamp(48px, 6vw, 96px);
  margin: var(--space-5) 0 0;
  text-wrap: balance;
}
.cs-hero__title em {
  font-style: normal;
  color: var(--oa-teal-700);
}
.cs-hero__title .dot {
  display: inline-block;
  width: 0.16em;
  height: 0.16em;
  border-radius: 50%;
  background: var(--oa-teal-700);
  vertical-align: 0.16em;
  margin: 0 0.06em;
}
.cs-hero__lede {
  font-size: clamp(17px, 1.25vw, 20px);
  color: var(--fg-secondary);
  line-height: var(--leading-normal);
  max-width: 44ch;
  margin: 0;
}
.cs-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

/* Meta strip (Client / Sector / Year / Services) */
.cs-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.cs-meta__item .label {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--fg-tertiary);
  display: block;
  margin-bottom: var(--space-2);
}
.cs-meta__item .value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.012em;
  color: var(--oa-navy-950);
  line-height: 1.2;
}
.cs-meta__item .value small {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--fg-tertiary);
  margin-top: 2px;
}

/* ——— Feature image ——————————————————————————————————————————— */
.cs-feature {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: linear-gradient(160deg, var(--oa-navy-800) 0%, var(--oa-navy-950) 100%);
  box-shadow: var(--shadow-xl);
}
.cs-feature image-slot {
  --image-slot-radius: var(--radius-2xl);
  width: 100%;
  height: 100%;
}

/* Decorated artwork backgrounds (per case) */
.cs-art {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-12);
  overflow: hidden;
}
.cs-art__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168,233,236,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168,233,236,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black, transparent 75%);
}
.cs-art__glow {
  position: absolute;
  width: 640px; height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(18,160,165,0.45), transparent 65%);
  filter: blur(70px);
}

/* ——— Section primitives ————————————————————————————————————— */
.cs-section {
  padding: var(--space-24) 0;
}
.cs-section--canvas {
  background: var(--neutral-50);
}
.cs-section--dark {
  background: var(--oa-navy-950);
  color: #fff;
}
.cs-section--dark .eyebrow { color: var(--oa-teal-400); }

.cs-section__head {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: var(--space-12);
  align-items: start;
  margin-bottom: var(--space-12);
}
.cs-section__title {
  font-family: var(--font-display);
  font-size: clamp(40px, 4.4vw, 64px);
  font-weight: 600;
  letter-spacing: -0.028em;
  line-height: 1;
  color: var(--oa-navy-950);
  margin: var(--space-3) 0 0;
  text-wrap: balance;
}
.cs-section__title em {
  font-style: normal;
  color: var(--oa-teal-700);
}
.cs-section--dark .cs-section__title { color: #fff; }
.cs-section--dark .cs-section__title em { color: var(--oa-teal-400); }

.cs-section__lede {
  font-size: var(--text-lg);
  color: var(--fg-secondary);
  line-height: var(--leading-normal);
  margin: 0;
  max-width: 52ch;
  align-self: end;
}
.cs-section--dark .cs-section__lede { color: var(--oa-navy-300); }

.cs-prose {
  max-width: 64ch;
  font-size: var(--text-md);
  color: var(--fg-secondary);
  line-height: var(--leading-relaxed);
}
.cs-prose p + p { margin-top: var(--space-5); }
.cs-prose strong { color: var(--oa-navy-950); font-weight: 600; }
.cs-prose ul {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.cs-prose ul li {
  padding-left: var(--space-6);
  position: relative;
}
.cs-prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 12px;
  height: 1.5px;
  background: var(--oa-teal-700);
}
.cs-section--dark .cs-prose { color: var(--oa-navy-300); }
.cs-section--dark .cs-prose strong { color: #fff; }
.cs-section--dark .cs-prose ul li::before { background: var(--oa-teal-400); }

/* ——— Side image / illustration —————————————————————————————— */
.cs-figure {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
}
.cs-figure image-slot {
  --image-slot-radius: var(--radius-xl);
  width: 100%;
  display: block;
  aspect-ratio: 4 / 5;
}
.cs-figure__caption {
  position: absolute;
  left: var(--space-5);
  bottom: var(--space-5);
  right: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(168, 233, 236, 0.22);
  border-radius: var(--radius-md);
  color: #fff;
}
.cs-figure__caption .label {
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--oa-teal-300);
}
.cs-figure__caption .value {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 1px;
}
.cs-figure__caption .dot-pulse {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--oa-teal-400);
  box-shadow: 0 0 0 4px rgba(18,160,165,0.22);
  flex-shrink: 0;
}

/* ——— Two-column section grid —————————————————————————————— */
.cs-two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--space-16);
  align-items: start;
}
.cs-two-col--flip {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}
.cs-two-col--flip .cs-figure { order: -1; }

/* ——— Challenge block — quoted style —————————————————————————— */
.cs-challenge {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-16);
  align-items: start;
}
.cs-challenge__quote {
  font-family: var(--font-display);
  font-size: clamp(28px, 2.6vw, 40px);
  font-weight: 500;
  letter-spacing: -0.018em;
  line-height: 1.2;
  color: var(--oa-navy-950);
  margin: 0;
  text-wrap: balance;
  position: relative;
  padding-left: var(--space-8);
}
.cs-challenge__quote::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 24px;
  height: 2px;
  background: var(--oa-teal-700);
}
.cs-challenge__pain {
  display: grid;
  gap: var(--space-3);
}
.cs-pain {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-6);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}
.cs-pain__num {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--oa-navy-50);
  color: var(--oa-navy-700);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--text-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: start;
}
.cs-pain h4 {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--oa-navy-950);
  margin: 4px 0 var(--space-2);
  letter-spacing: -0.01em;
}
.cs-pain p {
  font-size: var(--text-sm);
  color: var(--fg-secondary);
  line-height: var(--leading-normal);
  margin: 0;
}

/* ——— Approach steps —————————————————————————————————————————— */
.cs-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-4);
}
.cs-step {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(168, 233, 236, 0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: background var(--dur-base), border-color var(--dur-base);
}
.cs-step:hover {
  background: rgba(18, 160, 165, 0.08);
  border-color: rgba(18, 160, 165, 0.3);
}
.cs-step__phase {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--oa-teal-300);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.cs-step__phase::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--oa-teal-400);
}
.cs-step h4 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: #fff;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.012em;
  line-height: 1.2;
}
.cs-step p {
  font-size: var(--text-sm);
  color: var(--oa-navy-300);
  line-height: var(--leading-normal);
  margin: 0;
}

/* ——— Impact metrics ——————————————————————————————————————— */
.cs-impact {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.cs-impact > div {
  padding: var(--space-10) var(--space-6);
  border-right: 1px solid var(--border-subtle);
}
.cs-impact > div:last-child {
  border-right: 0;
}
.cs-impact .value {
  font-family: var(--font-display);
  font-size: clamp(40px, 4.5vw, 72px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--oa-navy-950);
  margin: 0;
}
.cs-impact .value em {
  font-style: normal;
  color: var(--oa-teal-700);
}
.cs-impact .label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--fg-tertiary);
  margin-top: var(--space-3);
}
.cs-impact .desc {
  font-size: var(--text-sm);
  color: var(--fg-secondary);
  line-height: var(--leading-normal);
  margin-top: var(--space-2);
  max-width: 22ch;
}

/* ——— Pull quote ——————————————————————————————————————————— */
.cs-quote {
  margin: var(--space-16) 0 0;
  padding: var(--space-12);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-2xl);
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: var(--space-12);
  align-items: center;
}
.cs-quote__mark {
  font-family: var(--font-display);
  font-size: 96px;
  font-weight: 600;
  line-height: 0.6;
  color: var(--oa-teal-700);
  display: block;
  margin-bottom: var(--space-4);
}
.cs-quote blockquote {
  font-family: var(--font-display);
  font-size: clamp(22px, 2vw, 32px);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.25;
  color: var(--oa-navy-950);
  margin: 0;
  text-wrap: balance;
}
.cs-quote__attr {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-left: var(--space-8);
  border-left: 1px solid var(--border-default);
}
.cs-quote__attr .name {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--oa-navy-950);
  letter-spacing: -0.01em;
}
.cs-quote__attr .role {
  font-size: var(--text-sm);
  color: var(--fg-secondary);
}
.cs-quote__attr .org {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--oa-teal-700);
  margin-top: var(--space-2);
}

/* ——— Gallery row ——————————————————————————————————————————— */
.cs-gallery {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-4);
}
.cs-gallery image-slot {
  --image-slot-radius: var(--radius-xl);
  width: 100%;
  display: block;
  border-radius: var(--radius-xl);
}
.cs-gallery .tall { aspect-ratio: 4 / 3; }
.cs-gallery .stack {
  display: grid;
  gap: var(--space-4);
}
.cs-gallery .stack image-slot {
  aspect-ratio: 5 / 3;
}

/* ——— Related case studies ————————————————————————————————— */
.cs-related {
  background: var(--neutral-50);
  padding: var(--space-24) 0;
  border-top: 1px solid var(--border-subtle);
}
.cs-related__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  margin-bottom: var(--space-10);
  border-bottom: 1px solid var(--border-subtle);
}
.cs-related__head h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--oa-navy-950);
  line-height: 1;
  margin: var(--space-3) 0 0;
}
.cs-related__head h2 em { font-style: normal; color: var(--oa-teal-700); }

.cs-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.cs-related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-base), transform var(--dur-base), box-shadow var(--dur-base);
}
.cs-related-card:hover {
  border-color: var(--oa-teal-600);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.cs-related-card__media {
  aspect-ratio: 5 / 4;
  background: linear-gradient(165deg, var(--neutral-100), var(--neutral-200));
  position: relative;
  overflow: hidden;
}
.cs-related-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.cs-related-card__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--fg-tertiary);
}
.cs-related-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--oa-navy-950);
  margin: 0;
  line-height: 1.15;
}
.cs-related-card__lede {
  font-size: var(--text-sm);
  color: var(--fg-secondary);
  line-height: var(--leading-normal);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cs-related-card__more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--oa-teal-700);
  margin-top: auto;
  padding-top: var(--space-2);
}

/* ——— Closing CTA — Get in touch ——————————————————————————— */
.cs-closing {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(18, 160, 165, 0.22), transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(245, 158, 44, 0.10), transparent 50%),
    var(--oa-navy-950);
  color: #fff;
  padding: var(--space-32) 0;
}
.cs-closing__bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168, 233, 236, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 233, 236, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black, transparent 70%);
  pointer-events: none;
}
.cs-closing__inner {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
}
.cs-closing h2 {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 96px);
  font-weight: 600;
  letter-spacing: -0.032em;
  line-height: 0.95;
  color: #fff;
  margin: var(--space-5) 0 var(--space-8);
  text-wrap: balance;
}
.cs-closing h2 em { font-style: normal; color: var(--oa-teal-400); }
.cs-closing h2 .dot {
  display: inline-block;
  width: 0.16em; height: 0.16em;
  border-radius: 50%;
  background: var(--oa-teal-400);
  vertical-align: 0.16em;
  margin: 0 0.06em;
}
.cs-closing p {
  font-size: var(--text-lg);
  color: var(--oa-navy-300);
  line-height: var(--leading-normal);
  margin: 0 0 var(--space-8);
  max-width: 56ch;
}
.cs-closing__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.cs-closing__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.cs-closing__detail .label {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--oa-teal-300);
  display: block;
  margin-bottom: var(--space-2);
}
.cs-closing__detail .value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.012em;
  line-height: 1.3;
}
.cs-closing__detail .value a {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(168, 233, 236, 0.3);
  transition: border-color var(--dur-fast);
}
.cs-closing__detail .value a:hover { border-bottom-color: var(--oa-teal-400); }

/* ——— Footer (matches index) ——————————————————————————————— */
.footer {
  background: var(--oa-navy-950);
  color: rgba(255, 255, 255, 0.85);
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid rgba(168, 233, 236, 0.10);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(168, 233, 236, 0.10);
}
.footer__brand .logo {
  height: 32px;
  margin-bottom: var(--space-4);
}
.footer__brand p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.85);
  line-height: var(--leading-normal);
  max-width: 36ch;
  margin: 0;
}
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--oa-teal-400);
  margin: 0 0 var(--space-4);
  font-weight: 500;
}
.footer__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer__col a {
  color: #fff;
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--dur-fast);
}
.footer__col a:hover { color: var(--oa-teal-400); }
.footer__bottom {
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.04em;
}
.footer__bottom .legal { display: flex; gap: var(--space-6); }
.footer__bottom a { color: rgba(255, 255, 255, 0.6); text-decoration: none; }
.footer__bottom a:hover { color: var(--oa-teal-400); }

/* ——— Responsive ——————————————————————————————————————————— */
@media (max-width: 1100px) {
  .cs-impact { grid-template-columns: repeat(2, 1fr); }
  .cs-impact > div:nth-child(2) { border-right: 0; }
  .cs-impact > div:nth-child(1),
  .cs-impact > div:nth-child(2) { border-bottom: 1px solid var(--border-subtle); }
  .cs-related__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .container { padding-left: var(--space-6); padding-right: var(--space-6); }
  .cs-hero__head,
  .cs-section__head,
  .cs-two-col,
  .cs-two-col--flip,
  .cs-challenge,
  .cs-quote,
  .footer__grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-8);
  }
  .cs-two-col--flip .cs-figure { order: 0; }
  .cs-meta { grid-template-columns: repeat(2, 1fr); }
  .cs-steps { grid-template-columns: 1fr; }
  .cs-impact { grid-template-columns: 1fr; }
  .cs-impact > div { border-right: 0; border-bottom: 1px solid var(--border-subtle); }
  .cs-impact > div:last-child { border-bottom: 0; }
  .cs-section { padding: var(--space-16) 0; }
  .cs-quote__attr { padding-left: 0; border-left: 0; border-top: 1px solid var(--border-default); padding-top: var(--space-5); }
  .cs-related__grid { grid-template-columns: 1fr; }
  .cs-gallery { grid-template-columns: 1fr; }
  .cs-closing { padding: var(--space-20) 0; }
  .cs-related { padding: var(--space-16) 0; }
  .footer__bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
  .footer__bottom .legal { justify-content: center; }
}
@media (max-width: 480px) {
  .cs-meta { grid-template-columns: 1fr; }
  .cs-hero__title { font-size: clamp(32px, 8vw, 48px); }
}

/* ============================================================
   Related Case Study Card Micro-Illustrations
   ============================================================ */
.cs-related-card__media {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* 1. Rx Prescription Micro-Illustration */
.cs-related-card__media .rx-doc {
  position: absolute; left: 50%; top: 50%;
  width: 220px; background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-xl);
  font-family: var(--font-sans);
  transform: translate(-50%, -50%) rotate(-3deg) scale(0.78);
  transform-origin: center;
}
.cs-related-card__media .rx-doc__row {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  padding: var(--space-2) 0; border-bottom: 1px dashed var(--border-default);
  font-size: var(--text-xs);
}
.cs-related-card__media .rx-doc__row:last-child { border-bottom: 0; }
.cs-related-card__media .rx-doc__row .k {
  font-family: var(--font-mono); font-size: 10px; color: var(--fg-tertiary);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.cs-related-card__media .rx-doc__row .v { color: var(--oa-navy-950); font-weight: 500; }
.cs-related-card__media .rx-doc__title {
  font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600;
  letter-spacing: -0.01em; color: var(--oa-navy-950); margin: 0 0 var(--space-4);
  display: flex; align-items: center; gap: var(--space-2);
}
.cs-related-card__media .rx-doc__title::before { content: "℞"; color: var(--oa-teal-700); font-size: 22px; }
.cs-related-card__media .rx-doc__sig {
  margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--border-default);
  display: flex; justify-content: space-between; align-items: center;
}
.cs-related-card__media .rx-doc__sig .sig {
  font-family: 'Brush Script MT', cursive;
  font-size: 20px; color: var(--oa-navy-800);
}
.cs-related-card__media .rx-doc__chip {
  font-family: var(--font-mono); font-size: 9px; color: var(--success-700);
  background: var(--success-50); padding: 2px 6px; border-radius: var(--radius-sm);
  border: 1px solid var(--success-100);
}

/* 2. Registry Table Micro-Illustration */
.cs-related-card__media .reg-table {
  width: 100%; max-width: 320px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  font-size: var(--text-xs);
  transform: scale(0.78);
  transform-origin: center;
}
.cs-related-card__media .reg-table__head {
  background: var(--oa-navy-950); color: #fff;
  padding: var(--space-3) var(--space-4);
  display: flex; align-items: center; justify-content: space-between;
}
.cs-related-card__media .reg-table__head .title { font-family: var(--font-display); font-weight: 600; font-size: var(--text-sm); letter-spacing: -0.01em; }
.cs-related-card__media .reg-table__head .pill {
  font-family: var(--font-mono); font-size: 9px; padding: 2px 6px; border-radius: var(--radius-sm);
  background: rgba(123, 221, 225, 0.18); color: var(--oa-teal-300); letter-spacing: 0.08em;
  text-transform: uppercase;
}
.cs-related-card__media .reg-row {
  display: grid; grid-template-columns: 1fr 80px 70px;
  gap: var(--space-3);
  padding: 10px var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  align-items: center;
}
.cs-related-card__media .reg-row:last-child { border-bottom: 0; }
.cs-related-card__media .reg-row .name { font-weight: 500; color: var(--oa-navy-950); }
.cs-related-card__media .reg-row .sub { font-family: var(--font-mono); font-size: 9px; color: var(--fg-tertiary); margin-top: 1px; }
.cs-related-card__media .reg-row .ema { font-family: var(--font-mono); font-size: 10px; color: var(--fg-secondary); }
.cs-related-card__media .reg-row__head {
  background: var(--bg-subtle);
  font-family: var(--font-mono); font-size: 9px;
  color: var(--fg-tertiary); text-transform: uppercase; letter-spacing: 0.08em;
}

/* 3. Shelter Card Micro-Illustration */
.cs-related-card__media .shelter-card {
  width: 100%; max-width: 280px;
  background: white;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: scale(0.88);
  transform-origin: center;
}
.cs-related-card__media .shelter-card__head {
  padding: var(--space-4) var(--space-5);
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}
.cs-related-card__media .shelter-card__head .id { font-family: var(--font-mono); font-size: 10px; color: var(--fg-tertiary); }
.cs-related-card__media .shelter-card__body { padding: var(--space-5); display: grid; grid-template-columns: 60px 1fr; gap: var(--space-4); align-items: center; }
.cs-related-card__media .shelter-pet {
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--pa-amber-100);
  color: var(--pa-amber-700);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: var(--text-xl);
}
.cs-related-card__media .shelter-card__body .name { font-family: var(--font-display); font-size: var(--text-md); font-weight: 600; color: var(--oa-navy-950); letter-spacing: -0.01em; }
.cs-related-card__media .shelter-card__body .meta { font-size: var(--text-xs); color: var(--fg-secondary); margin-top: 2px; }
.cs-related-card__media .shelter-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-subtle);
}
.cs-related-card__media .shelter-grid > div { padding: var(--space-3); border-right: 1px solid var(--border-subtle); }
.cs-related-card__media .shelter-grid > div:last-child { border-right: 0; }
.cs-related-card__media .shelter-grid .k { font-family: var(--font-mono); font-size: 9px; color: var(--fg-tertiary); text-transform: uppercase; letter-spacing: 0.08em; }
.cs-related-card__media .shelter-grid .v { font-family: var(--font-display); font-size: var(--text-md); font-weight: 600; color: var(--oa-navy-950); margin-top: 2px; }
.cs-related-card__media .coming-tag {
  position: absolute; top: var(--space-3); right: var(--space-3);
  font-family: var(--font-mono); font-size: 9px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--pa-amber-700);
  background: white;
  border: 1px solid var(--pa-amber-300);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  z-index: 1;
}

/* 4. VIS Frame Micro-Illustration */
.cs-related-card__media .vis-frame {
  width: 100%;
  max-width: 300px;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(168,233,236,0.18);
  box-shadow: 0 30px 60px rgba(0,0,0,0.45), 0 8px 16px rgba(0,0,0,0.25);
  transform: perspective(1200px) rotateY(-3deg) rotateX(2deg) scale(0.82);
  transform-origin: center;
}
.cs-related-card__media .vis-frame__chrome {
  flex-shrink: 0;
  display: flex; align-items: center; gap: var(--space-2);
  padding: 10px 14px;
  background: var(--neutral-100);
  border-bottom: 1px solid var(--border-subtle);
}
.cs-related-card__media .vis-frame__dots { display: flex; gap: 6px; flex-shrink: 0; }
.cs-related-card__media .vis-frame__dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--neutral-300);
}
.cs-related-card__media .vis-frame__dots span:nth-child(1) { background: #FF5F57; }
.cs-related-card__media .vis-frame__dots span:nth-child(2) { background: #FEBC2E; }
.cs-related-card__media .vis-frame__dots span:nth-child(3) { background: #28C840; }
.cs-related-card__media .vis-frame__url {
  flex: 1; min-width: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-tertiary);
  background: #fff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  letter-spacing: 0.04em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cs-related-card__media .vis-frame__url::before {
  content: ""; display: inline-block;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--oa-teal-700);
  margin-right: 6px; vertical-align: -1px;
}
.cs-related-card__media .vis-frame__shot {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #fff;
}
.cs-related-card__media .vis-frame__shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.cs-related-card__media .vis-frame__shot::after {
  content: "";
  position: absolute; inset: auto 0 0 0;
  height: 56px;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.92));
  pointer-events: none;
}
.cs-related-card__media .vis-anno {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: rgba(10,22,40,0.92);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(168,233,236,0.24);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 28px rgba(0,0,0,0.4);
  color: #fff;
  z-index: 2;
  transform: scale(0.85);
  transform-origin: bottom right;
}
.cs-related-card__media .vis-anno__dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--oa-teal-400);
  box-shadow: 0 0 0 4px rgba(18,160,165,0.22);
  animation: visPulse 2s var(--ease-in-out) infinite;
  flex-shrink: 0;
}
.cs-related-card__media .vis-anno__value { font-size: var(--text-xs); }
.cs-related-card__media .vis-anno__label {
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--oa-teal-300);
}

/* 5. Change Management Micro-Illustration */
.cs-related-card__media .change-flow {
  width: 100%; max-width: 320px;
  display: flex; flex-direction: column; gap: var(--space-3);
  transform: scale(0.85);
  transform-origin: center;
}
.cs-related-card__media .change-step {
  display: grid; grid-template-columns: 32px 1fr auto;
  gap: var(--space-4); align-items: center;
  padding: var(--space-4) var(--space-5);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(168,233,236,0.14);
  border-radius: var(--radius-lg);
  color: #fff;
}
.cs-related-card__media .change-step.active { background: rgba(18,160,165,0.18); border-color: rgba(18,160,165,0.45); }
.cs-related-card__media .change-step__num {
  font-family: var(--font-mono); font-size: 11px;
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--oa-teal-300);
}
.cs-related-card__media .change-step.active .change-step__num { background: var(--oa-teal-700); color: #fff; }
.cs-related-card__media .change-step__title { font-family: var(--font-display); font-weight: 600; font-size: var(--text-md); }
.cs-related-card__media .change-step__sub { font-family: var(--font-mono); font-size: 10px; color: rgba(168,233,236,0.6); margin-top: 2px; text-transform: uppercase; letter-spacing: 0.08em; }