/* ── Case Studies (Work) ─────────────────────────── */
#work {
  background: var(--color-bg-alt);
  padding: var(--section-py) 0;
}

.work-header {
  margin-bottom: 56px;
}

/* No max-width on section headings — let them breathe */
.work-header .section-title,
.work-header .section-intro {
  max-width: none;
}

/* ── Case study tiles: white cards on off-white section ── */
.case-tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-bottom: 2px;
  background: var(--color-border-strong);
}

.case-tile {
  background: #FFFFFF;
  border: none;
  padding: 36px 32px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition-md), transform var(--transition-md);
  cursor: pointer;
}

.case-tile::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-md);
}

.case-tile:hover {
  box-shadow: 0 8px 32px rgba(5,13,31,0.12);
  transform: translateY(-2px);
  z-index: 1;
}

.case-tile:hover::before {
  transform: scaleX(1);
}

.case-tile-company {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.case-tile-number {
  font-family: var(--font-display);
  font-size: clamp(38px, 4vw, 52px);
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 4px;
}

.case-tile-context {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.01em;
  margin-bottom: 20px;
}

.case-tile-divider {
  height: 1px;
  background: var(--color-border-strong);
  margin-bottom: 20px;
}

.case-tile-desc {
  font-size: 14px;
  color: var(--color-ink-secondary);
  line-height: 1.70;
  flex: 1;
  margin-bottom: 28px;
  font-weight: 400;
}

.case-tile-cta {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.01em;
  transition: gap var(--transition);
  text-decoration: none;
}

.case-tile:hover .case-tile-cta { gap: 10px; }

/* ── Proof cards: white cards on off-white bg ─────── */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--color-border-strong);
}

.proof-card {
  background: #FFFFFF;
  border: none;
  padding: 32px 28px;
  transition: box-shadow var(--transition);
}

.proof-card:hover {
  box-shadow: 0 6px 24px rgba(5,13,31,0.10);
  z-index: 1;
  position: relative;
}

.proof-card-company {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.proof-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.proof-card-metric {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 4px;
}

.proof-card-metric-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink-secondary);
  margin-bottom: 20px;
}

.proof-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.proof-card ul li {
  font-size: 13px;
  color: var(--color-ink-secondary);
  padding-left: 16px;
  position: relative;
  line-height: 1.55;
  font-weight: 400;
}

.proof-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1.5px;
  background: var(--color-accent);
}

/* Responsive */
@media (max-width: 900px) {
  .case-tiles {
    grid-template-columns: 1fr;
  }
  .proof-grid {
    grid-template-columns: 1fr;
  }
}