/* ── Case Study Pages ── */
.case-hero { padding: 120px 0 60px; background: #fff; color: var(--text); position: relative; overflow: hidden; }
.case-hero::before { content: ""; position: absolute; top: -15%; right: -10%; width: 85%; height: 100%; background: radial-gradient(ellipse at top right, rgba(0,123,255,.20) 0%, rgba(0,90,230,.10) 40%, transparent 75%); pointer-events: none; }
.case-hero .container { position: relative; z-index: 1; }
.case-hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.case-hero-text { display: flex; flex-direction: column; }
.case-breadcrumb { font-size: 12px; color: var(--text-sub); margin-bottom: 24px; }
.case-breadcrumb a { color: var(--text-sub); text-decoration: none; }
.case-breadcrumb a:hover { text-decoration: underline; color: var(--text); }
.case-tags { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.case-tag { display: inline-block; padding: 4px 14px; font-size: 12px; font-weight: 700; color: #fff; background: #007BFF; border-radius: 100px; }
.case-title { font-size: 26px; font-weight: 900; color: var(--text); line-height: 1.4; margin-bottom: 20px; }
.case-lead { font-size: 13px; line-height: 1.8; color: var(--text-sub); margin-bottom: 32px; }
.case-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.case-metric { background: #eef5ff; border: 1px solid rgba(0,123,255,.35); border-radius: 12px; padding: 16px; text-align: center; box-shadow: 0 2px 8px rgba(0,123,255,.08); }
.case-metric-label { font-size: 11px; color: var(--text-sub); margin-bottom: 6px; }
.case-metric-value { font-size: 18px; font-weight: 900; color: var(--text); }
.case-metric-note { display: block; font-size: 10px; color: var(--text-muted); margin-top: 4px; }
.case-hero-img { width: 100%; border-radius: 16px; overflow: hidden; }
.case-hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 4/3; }
.case-body { padding: 48px 0 80px; background: #fff; }
.case-body-inner { display: grid; grid-template-columns: 1fr 280px; gap: 40px; align-items: start; }
.case-content { min-width: 0; }
.case-section { margin-bottom: 48px; }
.case-section--box { background: #eef3ff; border-radius: 12px; padding: 32px; border: 1px solid rgba(0,123,255,.1); }
.case-section-heading { font-size: 18px; font-weight: 800; color: var(--text); margin-bottom: 16px; }
.case-section p { font-size: 13px; line-height: 2; color: var(--text-sub); }
.case-list { list-style: none; padding: 0; margin-top: 16px; }
.case-list li { font-size: 13px; line-height: 2; color: var(--text-sub); padding-left: 20px; position: relative; }
.case-list li::before { content: "●"; color: #007BFF; position: absolute; left: 0; font-size: 8px; top: 2px; }

/* Results grid */
.case-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 16px; }
.case-result-item { background: #f0f4ff; border-radius: 10px; padding: 20px; text-align: center; }
.case-result-label { display: block; font-size: 11px; color: var(--text-sub); margin-bottom: 6px; }
.case-result-value { display: block; font-size: 17px; font-weight: 900; color: #007BFF; }
.case-result-note { display: block; font-size: 10px; color: var(--text-sub); margin-top: 4px; }

/* CTA */
.case-cta { background: #eef5ff; border: 1px solid rgba(0,123,255,.35); box-shadow: 0 2px 8px rgba(0,123,255,.08); border-radius: 24px; padding: 48px 40px; text-align: center; margin-bottom: 48px; }
.case-cta-label { display: inline-block; padding: 6px 20px; font-size: 11px; font-weight: 700; color: #007BFF; background: rgba(0,123,255,.12); border-radius: 100px; margin-bottom: 20px; letter-spacing: .08em; }
.case-cta-title { font-size: 22px; font-weight: 900; color: var(--text); margin-bottom: 16px; line-height: 1.5; }
.case-cta-lead { font-size: 13px; color: var(--text-sub); margin-bottom: 28px; line-height: 2; }
.case-cta-lead strong { color: var(--text); font-weight: 800; }
.case-cta-desc { display: none; }
.case-cta-btn { display: inline-block; padding: 16px 40px; font-size: 14px; font-weight: 700; color: #fff; background: #007BFF; border-radius: 100px; text-decoration: none; transition: all .3s ease; }
.case-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,123,255,.4); }
.case-cta-note { display: block; font-size: 11px; color: var(--text-muted); margin-top: 14px; }

/* Sidebar */
.case-sidebar { position: sticky; top: 90px; display: flex; flex-direction: column; gap: 18px; }
.case-sidebar-card { background: #fff; border: 1px solid #eaeaea; border-radius: 14px; padding: 22px; }
.case-sidebar-card-title { font-size: 13px; font-weight: 800; color: var(--text); margin-bottom: 14px; }
.case-sidebar-dl { display: flex; flex-direction: column; gap: 0; }
.case-sidebar-dl > div { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid #f0f0f0; }
.case-sidebar-dl > div:last-child { border-bottom: none; }
.case-sidebar-dl dt { font-size: 12px; color: var(--text-sub); }
.case-sidebar-dl dd { font-size: 13px; font-weight: 700; color: var(--text); margin: 0; text-align: right; }
.case-sidebar-cta { background: #eef5ff; border: 1px solid rgba(0,123,255,.35); box-shadow: 0 2px 8px rgba(0,123,255,.08); }
.case-sidebar-cta-title { font-size: 13px; font-weight: 800; color: var(--text); margin-bottom: 8px; }
.case-sidebar-cta-text { font-size: 11.5px; color: var(--text-sub); line-height: 1.7; margin-bottom: 16px; }
.case-sidebar-cta-btn { display: block; padding: 11px; font-size: 13px; font-weight: 700; color: #fff; background: #007BFF; border-radius: 10px; text-decoration: none; text-align: center; transition: all .3s ease; }
.case-sidebar-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,123,255,.4); }

/* Metadata */
.case-meta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; padding-top: 32px; border-top: 1px solid #e8edf5; }
.case-meta-item { display: flex; gap: 8px; align-items: center; font-size: 12px; color: var(--text-sub); background: var(--bg-gray, #f5f6fa); padding: 6px 16px; border-radius: 100px; }
.case-meta-label { font-weight: 700; }

/* Related cases */
.case-related { margin-bottom: 48px; }
.case-related-title { font-size: 17px; font-weight: 800; color: var(--text); margin-bottom: 24px; }
.case-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-related-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 1px 4px rgba(0,0,0,.08); text-decoration: none; color: inherit; transition: transform .2s, box-shadow .2s; }
.case-related-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.case-related-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.case-related-tag { display: inline-block; margin: 14px 0 8px 16px; padding: 2px 10px; font-size: 10px; font-weight: 700; color: #007BFF; background: rgba(0,123,255,.08); border-radius: 100px; }
.case-related-card p { font-size: 12px; font-weight: 700; color: var(--text); padding: 0 16px 16px; line-height: 1.5; }

/* Back link */
.case-back { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; color: #007BFF; text-decoration: none; margin-top: 48px; }
.case-back:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 960px) {
  .case-body-inner { grid-template-columns: 1fr; }
  .case-sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
  .case-sidebar-card { flex: 1; min-width: 240px; }
}
@media (max-width: 768px) {
  .case-hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .case-title { font-size: 20px; }
  .case-metrics { grid-template-columns: repeat(3, 1fr); }
  .case-metric-value { font-size: 14px; }
  .case-metric { padding: 12px 8px; }
  .case-results { grid-template-columns: 1fr; }
  .case-related-grid { grid-template-columns: 1fr; }
  .case-cta { padding: 28px 16px; }
  .case-section--box { padding: 24px 20px; }
  .case-sidebar { flex-direction: column; }
  .case-sidebar-card { min-width: auto; }
}