:root {
  --case-ink: #0c0c0c;
  --case-teal: #004a4d;
  --case-paper: #f8f8f6;
  --case-line: #d8d9d6;
  --case-muted: #59615f;
  --case-radius: 2px;
}

.case-study {
  box-sizing: border-box;
  max-width: 82rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 7rem) clamp(1.25rem, 4vw, 4rem) clamp(4rem, 9vw, 9rem);
  color: var(--case-ink);
}

.case-study__breadcrumbs {
  margin-bottom: clamp(2.5rem, 6vw, 6rem);
  color: var(--case-muted);
  font: 600 0.72rem/1.4 system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-study__breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-study__breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 0.8rem;
  color: var(--case-line);
}

.case-study__breadcrumbs a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.25em;
}

.case-study__header {
  max-width: 60rem;
  padding-bottom: clamp(2rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--case-line);
}

.case-study__kicker {
  margin: 0 0 1.1rem;
  color: var(--case-teal);
  font: 700 0.75rem/1.2 system-ui, sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.case-study h1,
.case-study h2,
.case-study p,
.case-study dl,
.case-study ul {
  margin-top: 0;
}

.case-study h1 {
  max-width: 12ch;
  margin-bottom: 0;
  font: 700 clamp(2.75rem, 7vw, 6.75rem)/0.98 Poppins, Montserrat, system-ui, sans-serif;
  letter-spacing: -0.055em;
}

.case-study h2 {
  font: 700 clamp(1.65rem, 3.2vw, 2.8rem)/1.06 Poppins, Montserrat, system-ui, sans-serif;
  letter-spacing: -0.035em;
}

.case-study__facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: clamp(2rem, 4vw, 3.75rem) 0 0;
}

.case-study__fact {
  min-width: 0;
  padding-top: 0.8rem;
  border-top: 1px solid var(--case-line);
}

.case-study__fact dt {
  margin-bottom: 0.4rem;
  color: var(--case-muted);
  font: 700 0.7rem/1.3 system-ui, sans-serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-study__fact dd {
  margin: 0;
  font: 500 1rem/1.45 Raleway, Montserrat, system-ui, sans-serif;
}

.case-study__story,
.case-study__related,
.case-study__enquiry {
  max-width: 46rem;
  margin-top: clamp(4rem, 10vw, 9rem);
}

.case-study__story > h2,
.case-study__related > h2,
.case-study__enquiry > h2 {
  margin-bottom: 1.4rem;
}

.case-study__narrative,
.case-study__narrative-section {
  font: 400 1.08rem/1.75 Raleway, Montserrat, system-ui, sans-serif;
}

.case-study__narrative + .case-study__narrative-section,
.case-study__narrative-section + .case-study__narrative-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--case-line);
}

.case-study__narrative-section h2 {
  margin-bottom: 0.9rem;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
}

.case-study__narrative p:last-child,
.case-study__narrative-section p:last-child {
  margin-bottom: 0;
}

.case-study__narrative a {
  color: var(--case-teal);
  text-underline-offset: 0.2em;
}

.case-study__gallery {
  margin-top: clamp(4rem, 10vw, 9rem);
}

.case-study__section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--case-line);
}

.case-study__section-heading h2 {
  margin-bottom: 0.9rem;
}

.case-study__section-heading p {
  flex: 0 0 auto;
  margin-bottom: 1rem;
  color: var(--case-muted);
  font: 600 0.78rem/1.3 system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-study__gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(0.8rem, 2vw, 1.5rem);
}

.case-study__gallery-item {
  grid-column: span 4;
  min-width: 0;
  margin: 0;
}

.case-study__gallery-item:nth-child(5n + 1) {
  grid-column: span 7;
}

.case-study__gallery-item:nth-child(5n + 2) {
  grid-column: span 5;
}

.case-study__thumbnail {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: var(--case-radius);
  background: #e5e7e4;
  cursor: zoom-in;
}

.case-study__thumbnail img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 180ms ease-out;
}

.case-study__thumbnail:hover img {
  transform: scale(1.025);
}

.case-study__gallery-item figcaption {
  margin-top: 0.55rem;
  color: var(--case-muted);
  font: 400 0.85rem/1.4 Raleway, Montserrat, system-ui, sans-serif;
}

.case-study__thumbnail:focus-visible,
.case-study__lightbox button:focus-visible,
.case-study__cta:focus-visible,
.case-study__breadcrumbs a:focus-visible,
.case-study__narrative a:focus-visible,
.case-study__related a:focus-visible {
  outline: 3px solid var(--case-teal);
  outline-offset: 4px;
}

.case-study__lightbox {
  width: min(92vw, 78rem);
  max-width: none;
  padding: 0;
  border: 0;
  border-radius: var(--case-radius);
  background: var(--case-paper);
  color: var(--case-ink);
  box-shadow: 0 1.5rem 5rem rgb(12 12 12 / 26%);
}

.case-study__lightbox::backdrop {
  background: rgb(12 12 12 / 76%);
}

.case-study__lightbox-frame {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  max-height: 92vh;
  padding: clamp(1rem, 2.5vw, 2rem);
}

.case-study__lightbox-toolbar,
.case-study__lightbox-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.case-study__lightbox-toolbar {
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--case-line);
}

.case-study__lightbox-toolbar h2 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.case-study__lightbox button,
.case-study__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--case-teal);
  border-radius: var(--case-radius);
  background: transparent;
  color: var(--case-teal);
  font: 700 0.78rem/1 system-ui, sans-serif;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
}

.case-study__lightbox button:hover,
.case-study__cta:hover {
  background: var(--case-teal);
  color: #fff;
}

.case-study__lightbox-status {
  min-height: 1.35rem;
  margin: 0.75rem 0;
  color: var(--case-muted);
  font: 500 0.82rem/1.4 system-ui, sans-serif;
}

.case-study__lightbox-stage {
  display: grid;
  min-height: min(52vh, 38rem);
  place-items: center;
  overflow: hidden;
  background: #e9eae7;
  touch-action: pan-y;
}

.case-study__lightbox-stage img {
  display: block;
  width: 100%;
  max-height: min(60vh, 48rem);
  object-fit: contain;
}

.case-study__lightbox-stage img:not([src]) {
  display: none;
}

.case-study__lightbox-controls {
  justify-content: flex-end;
  padding-top: 1rem;
}

.case-study__related ul {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-study__related a {
  color: var(--case-teal);
  font: 600 1.05rem/1.4 Raleway, Montserrat, system-ui, sans-serif;
  text-underline-offset: 0.2em;
}

.case-study__enquiry {
  max-width: 55rem;
  padding-top: clamp(2rem, 4vw, 4rem);
  border-top: 1px solid var(--case-line);
}

.case-study__enquiry p {
  max-width: 40ch;
  color: var(--case-muted);
  font: 400 1.05rem/1.6 Raleway, Montserrat, system-ui, sans-serif;
}

@media (max-width: 767px) {
  .case-study__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-study__gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-study__gallery-item,
  .case-study__gallery-item:nth-child(5n + 1),
  .case-study__gallery-item:nth-child(5n + 2) {
    grid-column: span 1;
  }

  .case-study__gallery-item:first-child {
    grid-column: span 2;
  }

  .case-study__lightbox {
    width: 100vw;
    max-width: none;
    margin: auto 0 0;
  }

  .case-study__lightbox-frame {
    max-height: 88vh;
  }

  .case-study__lightbox-stage {
    min-height: 48vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  .case-study__thumbnail img {
    transition-duration: 1ms;
  }
}