/* ============================================================
   WORK.CSS — Case study page styles
   ============================================================ */

.cs-section {
  border-bottom: 1px solid var(--color-divider);
}

.cs-section:last-of-type {
  border-bottom: none;
}

.cs-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  margin-bottom: var(--space-10);
}

.cs-header__num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  color: var(--color-text-faint);
  line-height: 1;
  flex-shrink: 0;
  width: clamp(56px, 8vw, 88px);
  position: relative;
  top: -0.1em;
  opacity: 0.35;
}

.cs-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--color-text);
}

.cs-hero-image {
  margin-bottom: var(--space-12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.cs-hero-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.cs-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.cs-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cs-block__heading {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.cs-block p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 64ch;
}

.cs-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-left: var(--space-5);
  list-style: none;
}

.cs-list li {
  position: relative;
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 62ch;
  padding-left: 1.6em;
}

.cs-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 500;
  line-height: 1.75;
}

.cs-list li strong {
  color: var(--color-text);
  font-weight: 600;
}

.cs-callout {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-5) var(--space-8);
  background: var(--color-primary-subtle);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.cs-callout__text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.5;
  max-width: 58ch;
}

.cs-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-size: var(--text-sm);
}

.cs-link:hover {
  color: var(--color-primary-hover);
}

/* ── Case study grid (meta sidebar + body) ─────────────────── */
.cs-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-12);
  align-items: start;
}

.cs-meta {
  position: sticky;
  top: calc(60px + var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.cs-meta__item {}

.cs-meta__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-1);
}

.cs-meta__value {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

@media (max-width: 700px) {
  .cs-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .cs-meta {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border);
  }
  .cs-header {
    flex-direction: row;
    align-items: baseline;
    gap: var(--space-4);
  }
  .cs-header__num {
    font-size: 2rem;
    width: auto;
    opacity: 0.25;
  }
  .cs-hero-img {
    height: 220px;
  }
}

/* ── Current badge ────────────────────────────────────── */
.cs-badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2em 0.6em;
  border-radius: 3px;
  vertical-align: middle;
  margin-left: 0.6rem;
  position: relative;
  top: -0.15em;
}

.cs-badge--current {
  background: var(--color-green);
  color: #fff;
  opacity: 0.9;
}

/* ── Muted (older) case study sections ──────────────────── */
.cs-section--muted {
  opacity: 0.72;
}

.cs-section--muted .cs-header__num {
  opacity: 0.25;
}

.cs-section--muted .cs-heading {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

.cs-section--muted .cs-hero-image {
  opacity: 0.6;
}

.cs-section--muted:hover {
  opacity: 0.88;
  transition: opacity 0.3s ease;
}