/* Case-study premium layer: uses each page's own color tokens */
.case-body {
  --case-premium-accent: var(--color-accent, #D4A73B);
  --case-premium-rule: var(--color-rule-strong, rgba(212, 167, 59, .28));
}
.case-section {
  position: relative;
  isolation: isolate;
}
.case-section:not(.case-hero)::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 1.5rem var(--page-gutter, clamp(1.25rem, 4vw, 3rem)) auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--case-premium-rule), transparent);
}
.case-section-title {
  position: relative;
}
.case-section-title::after {
  content: "";
  display: block;
  width: clamp(2.5rem, 6vw, 4.5rem);
  height: 2px;
  margin-top: 1rem;
  background: linear-gradient(90deg, var(--case-premium-accent), transparent);
}
.case-hero {
  overflow: clip;
}
.case-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -6vw;
  bottom: 2rem;
  width: min(28vw, 300px);
  aspect-ratio: 1;
  border: 1px solid var(--case-premium-rule);
  border-radius: 50%;
  box-shadow: inset 0 0 0 18px color-mix(in srgb, var(--case-premium-accent) 4%, transparent), 0 0 80px color-mix(in srgb, var(--case-premium-accent) 11%, transparent);
  pointer-events: none;
}
.case-browser, .approach-card, .challenge-item, .case-snapshot-item,
.result-card, .testimonial-card, .faq__item, .case-rule-row {
  position: relative;
  overflow: hidden;
  border-color: var(--case-premium-rule) !important;
}
.approach-card::before, .challenge-item::before, .case-snapshot-item::before,
.result-card::before, .testimonial-card::before, .case-rule-row::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, color-mix(in srgb, var(--case-premium-accent) 10%, transparent), transparent 38%);
}
.results-band {
  border-block: 1px solid var(--case-premium-rule);
  background: linear-gradient(90deg, color-mix(in srgb, var(--case-premium-accent) 8%, transparent), transparent 34%, transparent 66%, color-mix(in srgb, var(--case-premium-accent) 8%, transparent));
}
.case-cta {
  border: 1px solid var(--case-premium-rule);
  box-shadow: 0 30px 74px rgba(0, 0, 0, .24);
}
@media (hover: hover) and (pointer: fine) {
  .case-browser, .approach-card, .challenge-item, .case-snapshot-item,
  .result-card, .testimonial-card, .faq__item, .case-rule-row {
    transition: transform var(--dur-short, 220ms) var(--ease-out, ease), border-color var(--dur-short, 220ms) ease, box-shadow var(--dur-short, 220ms) ease;
  }
  .case-browser:hover, .approach-card:hover, .challenge-item:hover, .case-snapshot-item:hover,
  .result-card:hover, .testimonial-card:hover, .case-rule-row:hover {
    transform: translate3d(0, -5px, 0);
    border-color: color-mix(in srgb, var(--case-premium-accent) 64%, transparent) !important;
    box-shadow: 0 18px 42px rgba(0, 0, 0, .20);
  }
}
@media (max-width: 760px) {
  .case-hero::after { width: 128px; right: -2rem; }
  .case-section:not(.case-hero)::before { inset-inline: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  .case-browser, .approach-card, .challenge-item, .case-snapshot-item,
  .result-card, .testimonial-card, .faq__item, .case-rule-row { transition: none !important; }
  .approach-card::before, .challenge-item::before, .case-snapshot-item::before,
  .result-card::before, .testimonial-card::before, .case-rule-row::before { display: none; }
}

/* ===========================================================================
   FAQ SYSTEM v3: case studies
   Shared structure, with each case retaining its own --case-premium-accent.
   =========================================================================== */
.faq__item {
  margin-bottom: 0.8rem;
  padding: 0 !important;
  overflow: clip;
  border: 1px solid var(--case-premium-rule) !important;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, color-mix(in srgb, var(--case-premium-accent) 7%, transparent), rgba(255, 255, 255, 0.018));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: border-color 220ms ease, background 220ms ease, box-shadow 220ms ease;
}

.faq__item:last-child {
  border-bottom: 1px solid var(--case-premium-rule) !important;
}

.faq__q {
  min-height: 4.5rem;
  padding: clamp(1rem, 1.8vw, 1.3rem) clamp(3.8rem, 7vw, 5rem) clamp(1rem, 1.8vw, 1.3rem) clamp(1rem, 2.5vw, 1.5rem) !important;
  color: var(--color-ink) !important;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.17rem) !important;
  line-height: 1.35;
}

.faq__q:focus-visible {
  outline: 3px solid var(--case-premium-accent);
  outline-offset: -3px;
}

.faq__q::after {
  top: 50% !important;
  right: clamp(1rem, 2.5vw, 1.5rem) !important;
  width: 2rem;
  height: 2rem;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--case-premium-rule);
  border-radius: 50%;
  color: var(--case-premium-accent) !important;
  background: color-mix(in srgb, var(--case-premium-accent) 10%, transparent);
  line-height: 1;
  transform: translateY(-50%);
  transition: transform 220ms ease, background 220ms ease, color 220ms ease, border-color 220ms ease;
}

.faq__item[open] {
  border-color: color-mix(in srgb, var(--case-premium-accent) 72%, transparent) !important;
  background: linear-gradient(135deg, color-mix(in srgb, var(--case-premium-accent) 15%, transparent), rgba(255, 255, 255, 0.03));
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.faq__item[open] .faq__q::after {
  color: var(--color-paper) !important;
  border-color: var(--case-premium-accent);
  background: var(--case-premium-accent);
  transform: translateY(-50%) rotate(45deg);
}

.faq__a {
  max-width: 72ch;
  margin: 0 !important;
  padding: 0 clamp(1rem, 2.5vw, 1.5rem) clamp(1.2rem, 2vw, 1.5rem);
  color: var(--color-ink-2) !important;
  font-size: clamp(0.96rem, 0.94rem + 0.13vw, 1.04rem);
  line-height: 1.72;
}

@media (max-width: 640px) {
  .faq__item { border-radius: 0.8rem; }
  .faq__q { min-height: 4.25rem; }
  .faq__a { line-height: 1.65; }
}

@media (prefers-reduced-motion: reduce) {
  .faq__item,
  .faq__q::after { transition: none !important; }
}