/* Detailed case-study pages and case-study hub enhancements. */

.case-hub-heading {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 700;
}

.case-hub-heading a {
  color: var(--ink);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
  text-decoration-color: transparent;
}

.case-hub-heading a:hover {
  color: var(--accent-dark, var(--primary-dark));
  text-decoration-color: currentColor;
}

.case-read-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent-dark, var(--primary-dark));
}

.case-read-link:hover {
  gap: 0.55rem;
}

.case-detail-hero {
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.case-detail-hero .container {
  max-width: 980px;
}

.case-detail-hero h1 {
  max-width: 900px;
  font-size: clamp(2.25rem, 5vw, 4.6rem);
}

.case-detail-hero .lede {
  max-width: 800px;
}

.case-disclosure {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.84);
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

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

.case-disclosure-mark {
  display: grid;
  flex: 0 0 1.9rem;
  width: 1.9rem;
  height: 1.9rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft, var(--primary-soft));
  color: var(--accent-dark, var(--primary-dark));
  font-family: var(--font-display);
  font-weight: 700;
}

.case-detail-body {
  padding-top: 0;
}

.case-detail-body > .container {
  max-width: 1120px;
}

.case-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: -1.8rem 0 clamp(2.5rem, 6vw, 4rem);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
  box-shadow: var(--shadow-card);
}

.case-fact {
  margin: 0;
  padding: 1.35rem;
  background: #fff;
}

.case-fact dt {
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-dark, var(--primary-dark));
}

.case-fact dd {
  margin: 0;
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
}

.case-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(220px, 280px);
  gap: clamp(2.5rem, 7vw, 5rem);
  align-items: start;
  justify-content: center;
}

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

.case-main p,
.case-main li {
  font-size: 1.04rem;
  line-height: 1.82;
}

.case-main p {
  margin: 0 0 1.05rem;
}

.case-main ul,
.case-main ol {
  padding-left: 1.35rem;
}

.case-main li + li {
  margin-top: 0.55rem;
}

.case-main :where(p, li, td) a:not(.btn) {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.17em;
}

.case-section {
  padding-top: 0.5rem;
  margin-bottom: clamp(2.8rem, 6vw, 4.3rem);
  scroll-margin-top: calc(var(--nav-height) + 20px);
}

.case-section h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.65rem, 3vw, 2.15rem);
}

.case-section h3 {
  margin: 1.8rem 0 0.65rem;
  font-size: 1.18rem;
}

.case-section-lede {
  color: var(--ink);
  font-size: 1.15rem !important;
}

.case-toc {
  position: sticky;
  top: calc(var(--nav-height) + 1.5rem);
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-soft);
}

.case-toc h2 {
  margin-bottom: 0.8rem;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-toc li + li {
  margin-top: 0.55rem;
}

.case-toc a {
  display: block;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.45;
}

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

.case-evidence-list {
  display: grid;
  gap: 0.85rem;
  padding: 0 !important;
  list-style: none;
}

.case-evidence-list li {
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--accent, var(--primary));
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--accent-soft, var(--primary-soft));
}

.case-evidence-list strong {
  color: var(--ink);
}

.case-method {
  margin: 1.4rem 0;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: 0 10px 30px -24px rgba(18, 20, 43, 0.45);
}

.case-method h3 {
  margin-top: 0;
}

.case-method-label {
  display: inline-block;
  margin-bottom: 0.55rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-dark, var(--primary-dark));
}

.case-method-note {
  margin-top: 0.85rem !important;
  color: var(--muted);
  font-size: 0.92rem !important;
}

.case-table-wrap {
  margin: 1.25rem 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.case-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: #fff;
}

.case-table caption {
  padding: 1rem 1.1rem;
  background: var(--bg-soft);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  text-align: left;
}

.case-table th,
.case-table td {
  padding: 0.9rem 1rem;
  border-top: 1px solid var(--line);
  vertical-align: top;
  font-size: 0.93rem;
  line-height: 1.55;
  text-align: left;
}

.case-table th {
  width: 25%;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
}

.case-outcome-panel {
  margin: 1.25rem 0;
  padding: clamp(1.35rem, 4vw, 2rem);
  border-radius: var(--radius-lg);
  background: var(--green-soft);
}

.case-outcome-panel h3 {
  margin-top: 0;
  color: var(--green-dark);
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1.2rem 0;
}

.case-metric {
  padding: 1rem;
  border: 1px solid rgba(4, 120, 87, 0.18);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.7);
}

.case-metric strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--green-dark);
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.2;
}

.case-metric span {
  color: var(--ink);
  font-size: 0.84rem;
  line-height: 1.4;
}

.case-limitations {
  padding: 1.25rem 1.35rem;
  border: 1px solid #f4d6bd;
  border-radius: var(--radius-md);
  background: var(--bg-warm);
}

.case-limitations h2 {
  font-size: 1.35rem;
}

.case-limitations p,
.case-limitations li {
  font-size: 0.96rem;
}

.case-lessons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding: 0 !important;
  list-style: none;
  counter-reset: lesson;
}

.case-lessons li {
  position: relative;
  margin: 0 !important;
  padding: 1.15rem 1.15rem 1.15rem 3.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  counter-increment: lesson;
}

.case-lessons li::before {
  position: absolute;
  top: 1.05rem;
  left: 1rem;
  display: grid;
  width: 1.8rem;
  height: 1.8rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft, var(--primary-soft));
  color: var(--accent-dark, var(--primary-dark));
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  content: counter(lesson);
}

.case-related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.case-related-card {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  color: var(--text);
}

.case-related-card:hover {
  transform: translateY(-2px);
  color: var(--text);
  box-shadow: var(--shadow-card);
}

.case-related-card span {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--accent-dark, var(--primary-dark));
  font-family: var(--font-display);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-related-card strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.08rem;
}

.case-related-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.case-back-link {
  display: inline-flex;
  margin-bottom: 1.4rem;
  font-weight: 700;
}

.case-detail-cta {
  margin-top: 3.5rem;
}

.case-research-boundary {
  margin-top: 1.1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .case-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .case-toc {
    position: static;
    grid-row: 1;
  }
}

@media (max-width: 640px) {
  .case-detail-hero h1 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .case-facts,
  .case-metrics,
  .case-lessons,
  .case-related-grid {
    grid-template-columns: 1fr;
  }

  .case-disclosure {
    display: block;
  }

  .case-disclosure-mark {
    margin-bottom: 0.65rem;
  }

  .case-table th,
  .case-table td {
    padding: 0.75rem;
  }
}

@media print {
  .site-header,
  .site-footer,
  .case-toc,
  .case-detail-cta,
  .nav-cta {
    display: none !important;
  }

  .case-detail-hero,
  .case-detail-body {
    padding: 1rem 0;
  }

  .case-facts,
  .case-related-card,
  .case-method {
    box-shadow: none;
  }
}