/* Shared editorial spine for evidence-led case studies. */
:root {
  --case-header-h: var(--header-h);
  --case-nav-h: 65px;
}

.case-page {
  --ink-900: var(--surface-1);
  background: var(--ink-950);
}

.case-intro {
  padding: calc(var(--header-h) + clamp(24px, 4vw, 56px)) 0 clamp(28px, 4vw, 52px);
  border-bottom: 1px solid var(--border-subtle);
}

.case-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(190px, .5fr);
  gap: clamp(28px, 6vw, 88px);
  align-items: end;
}

.case-intro .eyebrow a {
  color: inherit;
  text-decoration: none;
}

.case-intro h1 {
  margin: 12px 0 0;
  font: 400 clamp(3.25rem, 8vw, 7.5rem)/.9 var(--font-display);
  letter-spacing: .005em;
  text-transform: uppercase;
}

.case-deck {
  margin: clamp(18px, 2.8vw, 34px) 0 0;
  max-width: 38ch;
  font: 300 clamp(1.45rem, 3vw, 2.75rem)/1.12 var(--font-sans);
  color: var(--text-muted);
}

.case-deck strong {
  color: var(--text-primary);
  font-weight: 300;
}

.case-meta {
  display: grid;
  gap: var(--space-16);
  margin: 0;
}

.case-meta div {
  padding-top: var(--space-12);
  border-top: 1px solid var(--border-subtle);
}

.case-meta dt {
  font: 500 .6875rem/1.2 var(--font-sans);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.case-meta dd {
  margin: var(--space-8) 0 0;
  font: 400 .9375rem/1.4 var(--font-sans);
  color: var(--text-secondary);
}

.case-stage,
.case-chapter {
  padding: clamp(52px, 7vw, 108px) var(--page-gutter);
}

.case-page [id] {
  scroll-margin-top: calc(var(--case-header-h) + var(--case-nav-h) + 1rem);
}

.case-stage-inner {
  width: min(100%, var(--container-shell));
  margin-inline: auto;
}

.case-outcomes {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 30px);
}

.case-context {
  display: grid;
  grid-template-columns: minmax(240px, .65fr) minmax(0, 1.35fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: stretch;
  margin-top: clamp(36px, 4.6vw, 60px);
}

.case-picture {
  display: block;
  flex: 1;
  min-height: 320px;
  overflow: hidden;
  border-radius: 14px;
}

.case-picture img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-stage .case-chapter {
  width: min(100%, 1240px);
  margin-inline: auto;
  padding-inline: 0;
}

.case-chapter--flush {
  padding: 0;
}

.case-evidence-stage,
.case-evidence {
  width: min(100%, 1240px);
  margin-inline: auto;
}

.case-evidence {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: clamp(16px, 2vw, 24px);
  align-items: stretch;
  margin-top: clamp(24px, 3vw, 40px);
  background: var(--ink-900);
}

.case-evidence-stage {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(220px, .62fr) minmax(0, 1.28fr);
  column-gap: clamp(20px, 3vw, 40px);
  row-gap: var(--space-20);
  align-items: start;
  margin-top: clamp(52px, 7vw, 96px);
  background: transparent;
}

.case-evidence-stage [hidden] {
  display: none !important;
}

.case-evidence-stage__header,
.case-evidence-stage__layout {
  display: contents;
}

.case-evidence-stage__header > div {
  grid-column: 1;
  grid-row: 1 / span 2;
}

.case-evidence-stage__header h2 {
  margin: var(--space-12) 0 0;
  font: 400 clamp(2.3rem, 5vw, 4.8rem)/.96 var(--font-display);
  letter-spacing: .01em;
  text-transform: uppercase;
}

.case-evidence-stage__header p:last-child {
  grid-column: 2;
  grid-row: 1;
  align-self: end;
  max-width: 58ch;
  margin: 0;
  color: var(--text-secondary);
}

.case-evidence-controls {
  grid-column: 2;
  grid-row: 2;
  align-content: start;
}

.case-evidence-stage__readout {
  grid-column: 3;
  grid-row: 1 / span 2;
}

.case-evidence-controls .nc-instrument__option {
  justify-content: flex-start;
  text-align: left;
}

.case-evidence-stage__readout h3,
.case-evidence-fallback h3 {
  margin: 0;
  font: 400 clamp(1.4rem, 2.3vw, 2rem)/1.08 var(--font-sans);
  color: var(--text-primary);
}

.case-evidence-fallback {
  grid-column: 1 / -1;
  grid-row: 3;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: var(--space-16);
}

.case-evidence-stage[data-case-evidence-static] {
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
}

.case-evidence-stage[data-case-evidence-static] .case-evidence-stage__header {
  display: block;
  grid-column: 1;
  grid-row: 1;
}

.case-evidence-stage[data-case-evidence-static] .case-evidence-stage__header > div {
  grid-column: auto;
  grid-row: auto;
}

.case-evidence-stage[data-case-evidence-static] .case-evidence-stage__header p:last-child {
  grid-column: auto;
  grid-row: auto;
  align-self: start;
  margin-top: var(--space-16);
}

.case-evidence-stage[data-case-evidence-static] .case-evidence-stage__readout {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.case-evidence-fallback article {
  min-width: 0;
  padding: clamp(var(--space-20), 3vw, var(--space-32));
  border: 1px solid var(--border-subtle);
}

.case-evidence-status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.case-quote {
  max-width: 880px;
  margin: clamp(52px, 7vw, 96px) auto 0;
  text-align: center;
}

.case-quote-output {
  min-height: 4em;
}

.case-page [data-cq-prev],
.case-page [data-cq-next],
.case-page [data-ag-prev],
.case-page [data-ag-next] {
  min-width: 44px !important;
  min-height: 44px !important;
}

.case-page [data-ag-tab],
.case-page [data-acc-row] > button {
  min-height: 44px !important;
}

.case-page [data-ag-tab] {
  min-width: 44px !important;
}

.case-agent-tabs {
  overflow-x: auto;
  overscroll-behavior-inline: contain;
}

.sx-casenav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  box-sizing: border-box;
}

.case-page [data-cq-prev]:focus-visible,
.case-page [data-cq-next]:focus-visible,
.case-page [data-ag-prev]:focus-visible,
.case-page [data-ag-next]:focus-visible,
.case-page [data-ag-tab]:focus-visible,
.case-page [data-acc-row] > button:focus-visible,
.case-next:focus-visible,
.sx-casenav a:focus-visible {
  outline: 3px solid var(--accent, #1F8A5B) !important;
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .case-page [data-cq-prev],
  .case-page [data-cq-next],
  .case-page [data-ag-prev],
  .case-page [data-ag-next],
  .case-page [data-ag-tab],
  .case-page [data-acc-panel],
  .case-page [data-acc-chev] {
    transition: none !important;
  }
}

.case-close {
  padding-block: var(--section-y-compact);
}

.case-next {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  min-height: 52px;
  margin-left: auto;
  font: 500 .9375rem/1 var(--font-sans);
  color: var(--text-primary);
  text-decoration: none;
}

@media (max-width: 760px) {
  .case-intro-grid,
  .case-context {
    grid-template-columns: 1fr;
  }

  .case-evidence-stage {
    display: block;
  }

  .case-evidence-stage__header,
  .case-evidence-stage__layout {
    display: grid;
    grid-template-columns: 1fr;
  }

  .case-evidence-stage[data-case-evidence-static] .case-evidence-stage__header {
    display: block;
  }

  .case-evidence-stage__header > div,
  .case-evidence-stage__header p:last-child,
  .case-evidence-controls,
  .case-evidence-stage__readout {
    grid-column: 1;
    grid-row: auto;
  }

  .case-evidence-stage__header p:last-child,
  .case-evidence-stage[data-case-evidence-static] .case-evidence-stage__header p:last-child {
    margin-top: var(--space-16);
  }

  .case-evidence-stage__layout {
    margin-top: var(--space-20);
  }

  .case-evidence-fallback {
    margin-top: var(--space-20);
  }

  .case-outcomes {
    grid-template-columns: 1fr 1fr;
  }

  .case-intro h1 {
    font-size: clamp(2.75rem, 15vw, 5rem);
  }

  .sx-casenav::before,
  .sx-casenav::after {
    content: "";
    position: absolute;
    z-index: 1;
    top: 0;
    bottom: 0;
    width: 24px;
    pointer-events: none;
  }

  .sx-casenav::before {
    left: 0;
    background: linear-gradient(90deg, var(--ink-950), transparent);
  }

  .sx-casenav::after {
    right: 0;
    background: linear-gradient(270deg, var(--ink-950), transparent);
  }

  .sx-casenav .row {
    padding-inline: max(var(--page-gutter), 24px);
  }

  .case-next {
    width: 100%;
    margin-left: 0;
  }
}

@media (max-width: 460px) {
  .case-outcomes {
    grid-template-columns: 1fr;
  }
}