/* Case study sub-page (e.g. /partners/femi/case-studies/*)
   Font system: 2 fonts only — serif (--font-display) for headings,
   sans (--font-body) for everything else. Editorial labels use uppercase + tracking. */

/* Override global eyebrow on case-study pages to use sans-serif (2-font system) */
.case-banner .eyebrow,
.final-cta .eyebrow {
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: 0.18em;
}

.case-banner {
  background: var(--navy);
  color: var(--white);
  padding: var(--space-9) 0 var(--space-8);
  position: relative;
  overflow: hidden;
}

.case-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 25% 60%, rgba(255, 255, 255, 0.05) 0%, transparent 55%),
    radial-gradient(circle at 75% 40%, rgba(255, 255, 255, 0.06) 0%, transparent 55%);
}

.case-banner__inner {
  position: relative;
  z-index: 1;
  max-width: 880px;
}

.case-banner__breadcrumb {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.case-banner__breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color var(--transition-base);
}

.case-banner__breadcrumb a:hover {
  color: var(--white);
}

.case-banner .eyebrow {
  display: inline-block;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  color: rgba(255, 255, 255, 0.85);
}

.case-banner h1 {
  color: var(--white);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-5);
  max-width: 820px;
}

.case-banner h1 .emph {
  color: rgba(255, 255, 255, 0.85);
}

.case-banner__tagline {
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  font-weight: 300;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.78);
  margin: 0 0 var(--space-7);
  max-width: 720px;
}

.case-banner__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5) var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.case-banner__meta-item {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.case-banner__meta-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

/* Quick stats strip — visual hook below banner */
.case-stats-wrap {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-300);
  padding: var(--space-7) 0;
}

.case-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6) var(--space-5);
  max-width: 920px;
  margin: 0 auto;
}

@media (min-width: 720px) {
  .case-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
  }
}

.case-stat {
  text-align: center;
}

.case-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 300;
  line-height: 1;
  color: var(--navy);
  margin-bottom: var(--space-2);
  letter-spacing: -0.015em;
}

.case-stat__label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-500);
}

/* Article body */
.case-article-wrap {
  padding-top: var(--space-9);
  padding-bottom: var(--space-9);
}

.case-article {
  max-width: 760px;
  margin: 0 auto;
}

.case-article__lede {
  font-family: var(--font-body);
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--gray-900);
  margin: 0 0 var(--space-7);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--gray-300);
}

.case-article__lede strong {
  color: var(--navy);
  font-weight: 600;
}

/* Featured image between sections — breaks text monotony */
.case-feature-image {
  margin: 0 0 var(--space-8);
  aspect-ratio: 16 / 9;
  background-color: var(--gray-100);
  position: relative;
  overflow: hidden;
  padding: 0;
}

.case-feature-image__caption {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
  background: rgba(0, 0, 0, 0.5);
  padding: var(--space-2) var(--space-4);
  margin: 0;
  font-style: normal;
}

.case-article__h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  line-height: 1.25;
  color: var(--navy);
  margin: var(--space-8) 0 var(--space-5);
  letter-spacing: -0.01em;
}

.case-article__h2:first-child {
  margin-top: 0;
}

.case-article__sub {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--gray-700);
  margin: 0 0 var(--space-7);
}

.case-article p {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--gray-900);
  margin: 0 0 var(--space-5);
}

/* Numbered challenge points — 2-column on desktop, with icon */
.case-article__points {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin: 0 0 var(--space-8);
}

@media (min-width: 720px) {
  .case-article__points {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6) var(--space-7);
  }
}

.case-point {
  border-left: 2px solid var(--navy);
  padding-left: var(--space-5);
}

.case-point__icon {
  width: 32px;
  height: 32px;
  color: var(--navy);
  display: block;
  margin-bottom: var(--space-4);
  opacity: 0.85;
}

.case-point__num {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--navy);
  margin-bottom: var(--space-2);
}

.case-point h3 {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1.3;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.005em;
}

.case-point p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--gray-700);
  margin: 0;
}

/* Solution blocks — stacked editorial with icon */
.case-article__solution {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin: 0 0 var(--space-8);
}

.case-solution {
  background: var(--navy-pale);
  padding: var(--space-6) var(--space-7);
  border-radius: 2px;
  position: relative;
}

.case-solution__icon {
  width: 36px;
  height: 36px;
  color: var(--navy);
  display: block;
  margin-bottom: var(--space-4);
}

.case-solution__tag {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--navy);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.case-solution h3 {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1.3;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.005em;
}

.case-solution p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--gray-900);
  margin: 0;
}

/* Outcomes — dark stat boxes after "Giá trị nhận được" */
.case-outcomes {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin: var(--space-7) 0;
  padding: var(--space-7);
  background: var(--navy);
  color: var(--white);
  border-radius: 2px;
}

@media (min-width: 720px) {
  .case-outcomes {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-7);
    padding: var(--space-8);
  }
}

.case-outcome {
  text-align: center;
}

.case-outcome__value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 300;
  line-height: 1;
  color: var(--white);
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}

.case-outcome__label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.78);
}

/* Pull quote */
.case-article__quote {
  margin: var(--space-8) 0;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--navy);
  border-bottom: 1px solid var(--navy);
}

.case-article__quote p {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 300;
  line-height: 1.5;
  color: var(--navy);
  margin: 0;
}