/* ============== CASE STUDY ARTICLE PAGES ============== */

.cs-page { background: var(--bg); }

/* ============ HERO ============ */
.cs-hero {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
}

.cs-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cs-back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--purple);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  align-self: center;
  transition: gap 0.3s;
}
.cs-back-link:hover { gap: 12px; }

.cs-num-badge {
  display: inline-block;
  background: var(--grad-gold);
  color: #1a1a1a;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  align-self: center;
  margin-bottom: 6px;
}

.cs-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0;
}

.cs-industry {
  color: var(--muted);
  font-size: 1rem;
  letter-spacing: 0.03em;
}

.cs-outcome {
  display: inline-block;
  margin: 8px auto 0;
  padding: 14px 24px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  font-size: 0.95rem;
  color: var(--ink-2);
  align-self: center;
  max-width: 760px;
}
.cs-outcome strong {
  background: var(--grad-pg);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

/* ============ ARTICLE BODY ============ */
.cs-article {
  padding: 40px 0 80px;
  position: relative;
}

.cs-content {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.cs-content h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--ink);
  margin: 48px 0 18px;
  position: relative;
  padding-left: 22px;
}
.cs-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 5px;
  border-radius: 6px;
  background: var(--grad-pg);
}
.cs-content h2:first-child { margin-top: 0; }

.cs-content p { margin-bottom: 20px; }

.cs-content ul {
  margin: 14px 0 22px;
  padding: 0;
}
.cs-content ul li {
  list-style: none;
  position: relative;
  padding-left: 32px;
  margin-bottom: 12px;
}
.cs-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--grad-pg);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.cs-content em {
  background: var(--grad-pg);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: italic;
  font-weight: 600;
}

.cs-content strong { color: var(--ink); font-weight: 700; }

/* Pull quote — for The Lesson */
.cs-quote {
  margin: 48px 0;
  padding: 32px 36px;
  border-radius: var(--r-lg);
  background:
    linear-gradient(rgba(255,255,255,0.9), rgba(255,255,255,0.92)) padding-box,
    var(--grad-pg) border-box;
  border: 2px solid transparent;
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--ink);
  position: relative;
  box-shadow: var(--shadow-md);
}
.cs-quote::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 24px;
  font-family: 'Playfair Display', serif;
  font-size: 6rem;
  line-height: 1;
  color: var(--gold);
  opacity: 0.4;
  font-style: normal;
}
.cs-quote-label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-style: normal;
  font-weight: 700;
  margin-bottom: 10px;
}

/* ============ METRICS GRID ============ */
.cs-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin: 32px 0 12px;
}
.cs-metric {
  padding: 22px 20px;
  text-align: center;
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s;
}
.cs-metric:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.cs-metric strong {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--grad-pg);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 4px;
}
.cs-metric span {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

/* ============ NAV BETWEEN CASE STUDIES ============ */
.cs-nav {
  max-width: 760px;
  margin: 56px auto 0;
  padding: 28px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.cs-nav-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 22px;
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.cs-nav-item:hover {
  background: rgba(255,255,255,0.95);
  border-color: var(--purple);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.cs-nav-item span {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
}
.cs-nav-item strong {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  color: var(--ink);
}
.cs-nav-item.next { text-align: right; }

/* ============ FINAL CTA ============ */
.cs-final-cta {
  margin-top: 60px;
  padding: 48px 36px;
  text-align: center;
  border-radius: var(--r-lg);
  background:
    linear-gradient(rgba(255,255,255,0.95), rgba(255,255,255,0.92)) padding-box,
    var(--grad-pg) border-box;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.cs-final-cta::before,
.cs-final-cta::after {
  content: '';
  position: absolute;
  width: 220px; height: 220px;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}
.cs-final-cta::before { background: rgba(245, 197, 66, 0.25); top: -80px; left: -60px; }
.cs-final-cta::after  { background: rgba(106, 56, 194, 0.20); bottom: -80px; right: -60px; }
.cs-final-cta h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  padding-left: 0;
}
.cs-final-cta h2::before { display: none; }
.cs-final-cta p {
  color: var(--muted);
  margin-bottom: 24px;
  position: relative;
}
.cs-final-cta .btn-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  position: relative;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .cs-content { font-size: 1rem; }
  .cs-content h2 { font-size: 1.5rem; }
  .cs-quote { font-size: 1.1rem; padding: 26px 24px; }
  .cs-nav { grid-template-columns: 1fr; }
  .cs-nav-item.next { text-align: left; }
  .cs-final-cta { padding: 36px 22px; }
}