/* ============================================================
   CASE-STUDIES.CSS — case-studies.html specific styles
   ============================================================ */

/* ── PAGE HEADER ── */
.cs-page-hero {
  padding: calc(var(--nav-height) + 80px) 0 80px;
  border-bottom: 1px solid var(--border);
}

.cs-page-hero h1 {
  font-size: clamp(40px, 5.5vw, 72px);
  max-width: 760px;
  margin-bottom: 20px;
}
.cs-page-hero h1 em {
  font-style: italic;
  font-weight: 300;
  color: var(--text-muted);
}

.cs-page-hero p {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.78;
}

/* ── CASE STUDY CARDS GRID ── */
.cs-list-section {
  padding: 80px 0;
}

.cs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
}

/* ── INDIVIDUAL CASE STUDY CARD ── */
.cs-card {
  background: var(--surface);
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
}

.cs-card-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.cs-card-stats {
  display: flex;
  gap: 36px;
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.cs-stat-num {
  font-family: 'Fraunces', serif;
  font-size: 46px;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}
.cs-stat-lbl {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

.cs-card h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.cs-card-industry {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.cs-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 14px;
  flex: 1;
}

.cs-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--accent);
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  transition: gap .18s;
}
.cs-card-link:hover { gap: 10px; }

/* ── PLACEHOLDER CARD ── */
.cs-card-placeholder {
  background: var(--surface-alt);
  border: 2px dashed var(--border-strong) !important;
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 360px;
}

.placeholder-label {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: var(--border);
  color: var(--text-muted);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.cs-card-placeholder h3 {
  font-size: 20px;
  color: var(--border-strong);
  margin-bottom: 10px;
}

.cs-card-placeholder p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  opacity: .7;
}

/* ── FULL CASE STUDY DETAIL ── */
.cs-detail-section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.cs-detail-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
  align-items: start;
}

.cs-meta { position: sticky; top: calc(var(--nav-height) + 24px); }

.cs-meta h2 { font-size: 34px; margin-bottom: 32px; }

.stat-num {
  font-family: 'Fraunces', serif;
  font-size: 54px; font-weight: 600;
  color: var(--accent); line-height: 1;
}
.stat-lbl { font-size: 13px; color: var(--text-muted); margin-bottom: 28px; }

.case-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 28px;
}

/* Case body */
.cs-body h3 { font-size: 24px; margin: 36px 0 10px; }
.cs-body h3:first-child { margin-top: 0; }
.cs-body p { font-size: 15px; color: var(--text-muted); line-height: 1.8; margin-bottom: 14px; }

.pullquote {
  border-left: 3px solid var(--accent);
  padding: 6px 22px;
  margin: 30px 0;
  font-family: 'Fraunces', serif;
  font-size: 20px; font-style: italic;
  color: var(--text); line-height: 1.5;
}

/* ── CASE STUDIES CTA ── */
.cs-cta-section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  background: var(--surface);
}

.cs-cta-section h2 { font-size: clamp(28px, 4vw, 46px); margin-bottom: 16px; }
.cs-cta-section p { font-size: 16px; color: var(--text-muted); margin-bottom: 32px; line-height: 1.7; }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .cs-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-detail-inner { grid-template-columns: 1fr; gap: 48px; }
  .cs-meta { position: static; }
}

@media (max-width: 600px) {
  .cs-list-section,
  .cs-detail-section,
  .cs-cta-section { padding: 64px 0; }
  .cs-grid { grid-template-columns: 1fr; }
  .cs-card { padding: 36px 24px; }
  .cs-card-placeholder { padding: 36px 24px; min-height: 280px; }
  .cs-detail-inner { gap: 36px; }
  .cs-card-stats { gap: 24px; }
  .cs-stat-num { font-size: 36px; }
}