/* =============================================================
   Use Case Pages
   ============================================================= */
.case-study-header {
  padding: 60px 0 40px 0;
  border-bottom: 1px solid #eee;
  margin-bottom: 48px;
}
.case-study-header .back-link {
  font-size: 0.875rem;
  color: #888;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 24px;
}
.case-study-header .back-link:hover { color: #444; }
.case-study-header h1 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 300;
  font-size: 2.4rem;
  line-height: 1.2;
  margin-bottom: 16px;
}
.case-study-meta {
  font-size: 0.875rem;
  color: #888;
}
.case-study-meta span { margin-right: 24px; }
.case-study-body h2 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 300;
  font-size: 1.4rem;
  margin-top: 48px;
  margin-bottom: 16px;
  color: #222;
}
.case-study-body p {
  font-size: 1rem;
  line-height: 1.8;
  color: #444;
  margin-bottom: 20px;
}
.callout {
  border-left: 3px solid #aaa;
  padding: 16px 24px;
  margin: 32px 0;
  background: #f9f9f9;
}
.callout p {
  margin: 0;
  font-size: 1.05rem;
  font-style: italic;
  color: #555;
}
.outcome-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin: 32px 0;
}
.outcome-item {
  padding: 24px;
  background: #f5f5f5;
  border-radius: 4px;
}
.outcome-item h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #888;
  margin-bottom: 8px;
}
.outcome-item p {
  font-size: 0.95rem;
  color: #333;
  margin: 0;
  line-height: 1.5;
}
.case-study-footer {
  border-top: 1px solid #eee;
  margin-top: 64px;
  padding-top: 32px;
  padding-bottom: 64px;
}
.image-spread {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  margin: 40px 0;
}
.image-spread img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 2px;
}
.screenshot {
  margin: 32px 0;
}
.screenshot img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  border: 1px solid #eee;
}
.screenshot figcaption {
  font-size: 0.8rem;
  color: #999;
  margin-top: 8px;
  font-style: italic;
}
.screenshot-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}
@media (max-width: 768px) {
  .image-spread { grid-template-columns: 1fr; }
  .screenshot-pair { grid-template-columns: 1fr; }
  .case-study-header h1 { font-size: 1.8rem; }
}