/* Case-study reading column — narrower than the site's full --max, so long
   lines and multi-column grids stay readable on very wide screens. */

:root { --case-max: 960px; }

main#top > .section {
  max-width: var(--case-max);
}

/* "Full write-up coming soon" hero */

.case-soon-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 96px var(--pad) 64px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.case-soon-eyebrow {
  font-size: 15px;
  color: var(--gray-500);
}

.case-soon-title {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 720px;
}

.case-soon-back {
  color: var(--gray-500);
  font-size: 15px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.case-soon-back:hover {
  color: var(--black);
  border-color: var(--gray-300);
}

.case-soon-cover {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad) 64px;
}

.case-soon-cover img {
  width: 100%;
  display: block;
  border-radius: 16px;
  box-shadow: 0 24px 48px rgba(13, 13, 13, 0.1);
}

.case-soon-hero--tall { padding-bottom: 120px; }

@media (max-width: 560px) {
  .case-soon-hero { padding: 72px var(--pad) 48px; }
  .case-soon-hero--tall { padding-bottom: 80px; }
}

/* Case body — sidebar contents nav + sections column */

.case-body {
  max-width: var(--case-max);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.case-toc {
  position: sticky;
  top: 40px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.case-toc-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin: 0 0 14px;
}

.case-toc a {
  font-size: 14px;
  line-height: 1.4;
  color: var(--gray-500);
  padding: 7px 0 7px 14px;
  border-left: 2px solid var(--gray-100);
  transition: color 0.15s ease, border-color 0.15s ease;
}

.case-toc a:hover { color: var(--black); }

.case-toc a.active {
  color: var(--black);
  font-weight: 500;
  border-left-color: var(--black);
}

.case-sections { min-width: 0; }

.case-sections .section {
  max-width: none;
  padding: 56px 0;
}

.case-sections .section:first-child {
  padding-top: 0;
  border-top: none;
}

@media (max-width: 900px) {
  .case-body { display: block; padding: 0 var(--pad); }
  .case-toc { display: none; }
  .case-sections .section { padding: 40px 0; }
}

/* Case study hero */

.case-hero {
  max-width: var(--case-max);
  margin: 0 auto;
  padding: 12px var(--pad) 40px;
}

.case-tag {
  display: inline-block;
  color: var(--gray-500);
  font-size: 15px;
  margin-bottom: 20px;
}

.case-hero h1 {
  margin-bottom: 16px;
}

.case-subtitle {
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 500;
  color: var(--gray-700);
  margin: 0 0 24px;
  max-width: 720px;
}

.prose-lede {
  font-size: 17px;
  line-height: 1.65;
  color: var(--gray-700);
  max-width: 720px;
  margin: 0;
}

.case-figure {
  max-width: var(--case-max);
  margin: 40px auto 0;
  padding: 0 var(--pad) 48px;
}

.case-figure img {
  width: 100%;
  display: block;
  border-radius: 16px;
  box-shadow: 0 24px 48px rgba(13, 13, 13, 0.1);
}

.case-figure figcaption {
  margin-top: 12px;
  color: var(--gray-700);
  font-size: 14px;
}

.case-figure--inline {
  max-width: 720px;
  margin: 24px 0 0;
  padding: 0;
}

/* Prose */

.prose {
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-700);
  max-width: 720px;
  margin: 0 0 20px;
}

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

.prose strong { color: var(--black); font-weight: 500; }

.prose-list {
  margin: 0 0 20px;
  padding-left: 20px;
  max-width: 700px;
  color: var(--gray-700);
  font-size: 16px;
  line-height: 1.7;
}

.prose-list li { margin-bottom: 8px; }
.prose-list li:last-child { margin-bottom: 0; }

/* Meta grid */

.meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-bottom: 32px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--gray-100);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.meta-label {
  color: var(--gray-500);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.meta-value {
  font-size: 16px;
  font-weight: 500;
}

.meta-grid--6 { grid-template-columns: repeat(3, 1fr); }

/* Numbered / tagged blocks (audience, research, strategy) */

.num-block {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--gray-100);
}

.num-block:last-of-type { padding-bottom: 0; }

.num-tag {
  color: var(--gray-500);
  font-size: 14px;
}

.num-body h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 500;
}

.num-body p {
  margin: 0;
  max-width: 620px;
  color: var(--gray-700);
  line-height: 1.65;
  font-size: 16px;
}

/* Challenges */

.challenge-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 720px;
}

.challenge-grid > div {
  padding-top: 20px;
  border-top: 1px solid var(--gray-100);
}

.challenge-grid > div:first-child {
  padding-top: 0;
  border-top: none;
}

.challenge-label {
  display: block;
  color: var(--gray-500);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.challenge-grid p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--gray-700);
}

/* Priority stepper (audience diagram) */

.priority-stepper {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 10px;
}

.priority-step {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--accent);
  min-width: 150px;
}

.priority-step--2 { background: var(--accent-tint); }
.priority-step--3 { background: var(--gray-100); }

.priority-tag {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--gray-700);
}

.priority-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--black);
}

.priority-arrow {
  color: var(--gray-300);
  font-size: 18px;
  flex-shrink: 0;
}

.diagram-caption {
  font-size: 13px;
  color: var(--gray-500);
  margin: 0 0 28px;
}

/* Research diagram */

.diagram-figure {
  max-width: 760px;
  margin: 32px 0;
  padding: 0;
}

.diagram-figure svg {
  width: 100%;
  height: auto;
  display: block;
}

.diagram-figure figcaption {
  margin-top: 12px;
  color: var(--gray-700);
  font-size: 14px;
}

/* Before / after comparison */

.compare-grid {
  margin: 28px 0 8px;
  border-top: 1px solid var(--gray-100);
}

.compare-row {
  display: grid;
  grid-template-columns: 130px 1fr 24px 1fr;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--gray-100);
}

.compare-label {
  font-size: 13px;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.compare-before {
  font-size: 15px;
  color: var(--gray-700);
}

.compare-after {
  font-size: 15px;
  color: var(--black);
  font-weight: 500;
}

.compare-arrow {
  color: var(--gray-300);
  font-size: 16px;
  text-align: center;
}

/* Synthetic-data badge */

.synthetic-badge {
  display: inline-block;
  margin-left: 12px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent-ink);
  background: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
  vertical-align: middle;
}

/* Shipped grid */

.shipped-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
}

.shipped-chip {
  font-size: 14px;
  color: var(--black);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: 999px;
  padding: 8px 16px;
}

.prose--spaced { margin-top: 20px; }

/* Before / after figure pair */

.figure-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 32px 0;
}

.figure-pair .case-figure {
  margin: 0;
  max-width: none;
  padding: 0;
}

@media (max-width: 760px) {
  .figure-pair { grid-template-columns: 1fr; }
}

/* Finding → Response block */

.finding-response {
  display: grid;
  grid-template-columns: 1fr 24px 1fr;
  align-items: start;
  gap: 20px;
  margin: 28px 0;
  padding: 24px;
  background: var(--gray-100);
  border-radius: 16px;
}

.finding-response .fr-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.finding-response .fr-arrow {
  color: var(--gray-300);
  font-size: 18px;
  text-align: center;
  padding-top: 20px;
}

.finding-response p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--black);
}

/* Workflow / journey stepper (reuses priority-stepper visuals, neutral tier) */

.workflow-stepper .priority-step {
  background: var(--accent-tint);
  flex: 1;
}

/* My contribution split */

.contribution-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 24px 0 8px;
}

.contribution-col {
  padding: 20px 22px;
  border-radius: 16px;
  border: 1px solid var(--gray-100);
}

.contribution-col--mine {
  background: var(--accent-tint);
  border-color: transparent;
}

.contribution-col h4 {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 600;
}

.contribution-col p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--gray-700);
}

/* Missing-asset placeholder */

.asset-placeholder {
  max-width: var(--case-max);
  margin: 24px auto 0;
  padding: 40px 24px;
  border: 1.5px dashed var(--gray-300);
  border-radius: 16px;
  text-align: center;
  color: var(--gray-500);
}

.asset-placeholder strong {
  display: block;
  color: var(--gray-700);
  font-size: 14px;
  margin-bottom: 4px;
}

.asset-placeholder span {
  font-size: 13px;
}

/* Placeholder grids (multiple missing assets side by side) */

.placeholder-grid {
  display: grid;
  gap: 16px;
  margin: 24px 0 0;
}

.placeholder-grid--2 { grid-template-columns: 1fr 1fr; }
.placeholder-grid--3 { grid-template-columns: repeat(3, 1fr); }

.placeholder-grid .asset-placeholder {
  max-width: none;
  margin: 0;
  padding: 28px 16px;
}

/* Stage-flow diagram (before/after or multi-stage process, e.g. brand → system → interface) */

.stage-flow {
  display: flex;
  align-items: stretch;
  gap: 20px;
  margin: 28px 0;
}

.stage-flow .stage {
  flex: 1;
  min-width: 0;
}

/* A placeholder grid nested inside one half of a stage-flow only ever gets
   a fraction of the row's width, regardless of viewport — so it always
   stacks, independent of the standalone grid's own width breakpoint. */
.stage-flow .placeholder-grid {
  grid-template-columns: 1fr;
}

.stage-flow .stage-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--gray-300);
  font-size: 20px;
}

.stage-label {
  display: block;
  text-align: center;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.subhead {
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 14px;
  color: var(--black);
}

@media (max-width: 760px) {
  .placeholder-grid--2,
  .placeholder-grid--3 { grid-template-columns: 1fr; }

  .stage-flow { flex-direction: column; }
  .stage-flow .stage-arrow { transform: rotate(90deg); }
}

/* Low-resolution source image mat — tinted frame instead of full-bleed enlargement */

.mat-figure { margin: 0; }

.mat-frame {
  background: var(--accent-tint);
  border-radius: 20px;
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}

.mat-frame img {
  max-width: 100%;
  width: auto;
  height: auto;
  max-height: 480px;
  display: block;
  border-radius: 10px;
  box-shadow: 0 16px 32px rgba(13, 13, 13, 0.14);
}

.mat-figure figcaption {
  margin-top: 12px;
  color: var(--gray-700);
  font-size: 14px;
}

.shot-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.shot-badge--before { background: var(--gray-100); color: var(--gray-700); }
.shot-badge--after { background: var(--accent); color: var(--accent-ink); }

.mat-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 28px 0;
  align-items: start;
}

@media (max-width: 760px) {
  .mat-pair { grid-template-columns: 1fr; }
}

/* Image lightbox */

.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 13, 13, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease;
  z-index: 200;
}

.lightbox-overlay.open { opacity: 1; visibility: visible; }

.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 8px;
  cursor: zoom-out;
}

img.zoomable { cursor: zoom-in; }

/* Synthetic / unverified data panel */

.synthetic-panel {
  margin: 24px 0;
  padding: 24px;
  border: 1.5px dashed var(--gray-300);
  border-radius: 16px;
}

.synthetic-panel .stats-row {
  margin-bottom: 0;
}

.synthetic-panel .stat-num {
  font-size: 28px;
}

/* Case nav */

.case-nav { padding-top: 32px; padding-bottom: 8px; }

/* Next project */

.case-next {
  max-width: var(--case-max);
  margin: 0 auto;
  padding: 8px var(--pad) 64px;
}

.case-next--wide {
  max-width: var(--max);
}

.case-next-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  min-height: 280px;
  padding: 36px;
  border-radius: 20px;
  overflow: hidden;
  color: var(--white);
}

.case-next-bg {
  position: absolute;
  inset: 0;
  background: var(--tile);
  background-size: cover;
  background-position: center;
  transition: transform 0.3s ease;
}

.case-next-card:hover .case-next-bg { transform: scale(1.03); }

.case-next-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 13, 13, 0.1) 0%, rgba(13, 13, 13, 0.8) 100%);
}

.case-next-body {
  position: relative;
  z-index: 1;
}

.case-next-eyebrow {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 10px;
}

.case-next-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.25;
  margin: 0;
  max-width: 520px;
}

.case-next-cta {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

@media (max-width: 560px) {
  .case-next-card {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 16px;
    padding: 28px;
    min-height: 260px;
  }
}

/* Responsive */

@media (max-width: 860px) {
  .meta-grid { grid-template-columns: repeat(2, 1fr); }

  .num-block { grid-template-columns: 1fr; gap: 8px; }

  .priority-stepper { flex-direction: column; align-items: stretch; }
  .priority-arrow { transform: rotate(90deg); align-self: center; }
  .priority-step { min-width: 0; }

  .compare-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px 0;
  }
  .compare-arrow { transform: rotate(90deg); text-align: left; padding: 2px 0; }

  .finding-response { grid-template-columns: 1fr; gap: 4px; padding: 20px; }
  .finding-response .fr-arrow { display: none; }
  .finding-response .fr-response { margin-top: 12px; }

  .contribution-split { grid-template-columns: 1fr; }

  .meta-grid--6 { grid-template-columns: repeat(2, 1fr); }

  .mat-frame { padding: 18px; min-height: 0; }
}

@media (max-width: 560px) {
  .meta-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .meta-grid--6 { grid-template-columns: 1fr 1fr; }
}