/* Public case-study detail layout. Keep token-led and aligned with About/Brand noir shells. */

.case-detail-page {
  background: var(--color-page-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

.case-dark-shell {
  background:
    radial-gradient(780px 520px at 88% 20%, rgba(220, 38, 38, 0.16), transparent 68%),
    radial-gradient(620px 420px at 12% 0%, rgba(255, 255, 255, 0.055), transparent 72%),
    var(--color-surface-dark);
  color: var(--primitive-color-noir-gray-50);
}

.case-dark-shell .nav .brand,
.case-dark-shell .nav-links a,
.case-dark-shell .nav-menu-toggle {
  color: var(--primitive-color-noir-gray-50);
}

.case-dark-shell .nav .brand img {
  filter: brightness(0) invert(1);
}

.case-dark-shell .nav-cta {
  background: var(--primitive-color-noir-gray-50);
  color: var(--color-surface-dark);
  border-color: var(--primitive-color-noir-gray-50);
}

.case-dark-shell .nav-menu-toggle {
  border-color: rgba(255, 255, 255, 0.35);
}

.case-hero {
  padding: 48px 24px 60px;
}

.case-hero-inner {
  max-width: var(--layout-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: end;
}

.case-eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-size: var(--type-eyebrow-size, 0.8125rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent-light);
}

.case-hero h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(2.35rem, 4vw, 3.35rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.05;
  color: var(--primitive-color-noir-gray-50);
  text-wrap: balance;
}

.case-hero-sub {
  max-width: 38ch;
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--primitive-color-noir-gray-50);
  opacity: 0.74;
}

.case-hero-logo {
  display: block;
  width: auto;
  max-width: 180px;
  height: auto;
  max-height: 54px;
  filter: brightness(0) invert(1);
  opacity: 0.93;
}

.case-band {
  padding: 58px 24px 88px;
  background: var(--color-page-bg);
}

.case-grid {
  max-width: var(--layout-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(240px, 0.9fr);
  gap: 52px;
  align-items: start;
}

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

.case-reading,
.case-reading-rest {
  font-family: var(--font-body);
  font-size: var(--type-body-size, 1rem);
  line-height: 1.55;
  color: var(--color-text);
}

.case-reading > p {
  max-width: 68ch;
  margin: 0 0 1.15em;
}

.case-reading-rest h2 {
  margin: 2rem 0 0.85rem;
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.2vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.2;
  color: var(--color-ink);
  text-wrap: balance;
}

.case-reading-rest h2:first-child {
  margin-top: 0.25rem;
}

.case-reading-rest p {
  max-width: 68ch;
  margin: 0;
}

.case-quote {
  margin: 1.75rem 0 1.25rem;
  padding: 0.15rem 0 0.15rem 1.25rem;
  border-left: 2px solid var(--color-accent);
}

.case-quote blockquote {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-style: italic;
  font-weight: 500;
  line-height: 1.5;
  color: var(--color-ink);
  text-wrap: pretty;
}

.case-quote cite {
  display: block;
  margin-top: 0.65rem;
  font-size: 0.875rem;
  font-style: normal;
  color: var(--label);
}

.case-proof-note {
  max-width: 68ch;
  margin: 1.75rem 0 1.25rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: var(--primitive-color-alpha-surface-50);
}

.case-proof-note p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.case-proof-note strong {
  color: var(--color-ink);
}

.case-sidebar {
  position: sticky;
  top: 24px;
  font-family: var(--font-body);
}

.case-headshot {
  display: block;
  width: 88px;
  height: 88px;
  margin-bottom: 14px;
  border-radius: 50%;
  object-fit: cover;
  outline: 1px solid rgba(0, 0, 0, 0.1);
}

.case-person {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.35;
  text-transform: uppercase;
  color: var(--color-ink);
}

.case-person a,
.case-work-list a {
  color: var(--color-accent);
  text-decoration: none;
  transition:
    opacity var(--motion-duration, 150ms) var(--motion-ease, cubic-bezier(0.2, 0, 0, 1)),
    transform var(--motion-duration, 150ms) var(--motion-ease, cubic-bezier(0.2, 0, 0, 1));
}

.case-person a:hover,
.case-work-list a:hover {
  opacity: 0.85;
}

.case-person a:active,
.case-work-list a:active {
  transform: scale(0.96);
}

.case-person a:focus-visible,
.case-work-list a:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: 3px;
}

.case-metric {
  margin: 0 0 20px;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.case-work-label {
  margin: 0 0 10px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink);
}

.case-work-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.case-work-list a {
  display: inline-block;
  font-size: 0.92rem;
  line-height: 1.4;
}

@media (max-width: 900px) {
  .case-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .case-sidebar {
    position: static;
    padding-top: 24px;
    border-top: 1px solid var(--line-soft);
  }
}

@media (max-width: 640px) {
  .case-dark-shell .nav[data-menu-open="true"] .nav-links a {
    color: var(--ink);
  }

  .case-dark-shell .nav[data-menu-open="true"] .nav-links .nav-menu-cta a {
    color: var(--primitive-color-noir-gray-50);
  }

  .case-hero {
    padding: 38px 18px 48px;
  }

  .case-hero-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    align-items: start;
  }

  .case-hero-logo {
    max-width: 142px;
    max-height: 44px;
  }

  .case-band {
    padding: 42px 18px 68px;
  }
}