/* ── Case Study Page ── */

.case-hero {
  margin-top:var(--nav-height);
  padding:100px 0 80px;
  background:linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #0F172A 100%);
  position:relative;
  overflow:hidden;
}
.case-hero::before {
  content:'';
  position:absolute; inset:0;
  background:radial-gradient(ellipse at 20% 50%, rgba(37,99,235,0.08) 0%, transparent 60%);
}
.case-hero .container { position:relative; z-index:1; }
.case-breadcrumb {
  font-size:12px; color:rgba(148,163,184,0.8);
  margin-bottom:24px; letter-spacing:1px;
}
.case-hero h1 {
  font-family:var(--font-display);
  font-size:44px; font-weight:700; line-height:1.15;
  color:#fff; margin-bottom:16px;
}
.case-hero h1 .accent { color:#60A5FA; }
.case-subtitle {
  font-size:16px; color:rgba(148,163,184,0.9);
  margin-bottom:28px;
}
.case-tags { display:flex; gap:8px; flex-wrap:wrap; }
.case-tag {
  padding:4px 14px; border-radius:50px;
  font-size:11px; font-weight:500;
  background:rgba(37,99,235,0.15);
  color:#93C5FD;
  border:1px solid rgba(37,99,235,0.2);
}

.case-section { padding:70px 0; }
.bg-alt { background:var(--bg-secondary); }

/* Key metrics bar */
.case-metrics {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric-card {
  text-align:center; padding:32px 16px;
  background:#fff; border-radius:var(--radius);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.metric-num {
  font-family:var(--font-display);
  font-size:36px; font-weight:700;
  color:var(--text-primary); margin-bottom:6px;
}
.metric-label {
  font-size:13px; color:var(--text-primary);
}

/* Two-column layout */
.case-layout {
  display:grid;
  grid-template-columns:160px 1fr;
  gap:60px;
}
.case-side { position:sticky; top:calc(var(--nav-height) + 40px); align-self:start; }
.case-step-label {
  font-family:var(--font-display);
  font-size:12px; font-weight:700; letter-spacing:2px;
  color:var(--text-primary); margin-bottom:8px;
}
.case-side h2 {
  font-family:var(--font-display);
  font-size:22px; font-weight:600;
  color:var(--text-primary);
}
.case-main {
  font-size:15px; line-height:1.9;
  color:var(--text-primary);
}
.case-main p { margin-bottom:20px; }
.case-main .highlight {
  color:var(--text-primary); font-weight:500;
}
.case-main .em {
  color:var(--text-primary); font-weight:600;
}

/* Challenge box */
.challenge-box {
  background:rgba(37,99,235,0.04);
  border-left:3px solid var(--accent);
  padding:20px 24px;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom:28px;
}
.challenge-box strong {
  display:block; font-size:13px;
  color:var(--text-primary); margin-bottom:8px;
  letter-spacing:1px; text-transform:uppercase;
}
.challenge-box p { margin-bottom:0; }

/* Flow diagram */
.flow-diagram {
  display:flex; align-items:center; gap:8px;
  padding:24px 0; margin-bottom:28px;
  flex-wrap:wrap;
}
.flow-step {
  flex:1; min-width:100px;
  text-align:center; padding:16px 8px;
  background:#fff; border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
}
.flow-icon { margin-bottom:8px; }
.flow-icon svg { display:block; margin:0 auto; }
.flow-label { font-size:12px; font-weight:500; color:var(--text-primary); line-height:1.4; }
.flow-arrow {
  font-size:20px; color:var(--text-primary);
  font-weight:300; flex-shrink:0;
}

/* Sub heading */
.case-sub-heading {
  font-family:var(--font-display);
  font-size:18px; font-weight:600;
  color:var(--text-primary);
  margin:32px 0 12px;
}

/* List */
.case-list { list-style:none; padding:0; margin:0 0 28px; }
.case-list li {
  padding:14px 20px; margin-bottom:10px;
  background:#fff; border:1px solid var(--border-light);
  border-radius:var(--radius-sm);
  line-height:1.7;
}
.case-list li strong {
  display:block; margin-bottom:4px;
  color:var(--text-primary);
}

/* Distribution grid */
.dist-grid { display:grid; gap:12px; margin-bottom:28px; }
.dist-item {
  display:flex; align-items:center; gap:14px;
  padding:16px 20px;
  background:#fff; border:1px solid var(--border-light);
  border-radius:var(--radius-sm);
}
.dist-dot {
  width:10px; height:10px; border-radius:50%;
  flex-shrink:0;
}
.dist-item div { line-height:1.5; }
.dist-item strong { display:block; font-size:14px; color:var(--text-primary); }
.dist-item span { font-size:13px; color:var(--text-primary); }

/* Value grid */
.value-grid {
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.value-card {
  padding:28px; background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:box-shadow 0.2s;
}
.value-card:hover { box-shadow:var(--shadow-md); }
.value-icon { margin-bottom:14px; }
.value-icon svg { display:block; }
.value-card h4 {
  font-family:var(--font-display);
  font-size:16px; font-weight:600;
  color:var(--text-primary); margin-bottom:8px;
}
.value-card p { font-size:14px; color:var(--text-primary); line-height:1.7; margin:0; }

/* Related solutions */
.case-relate {
  display:block; padding:24px;
  background:#fff; border:1px solid var(--border);
  border-radius:var(--radius);
  text-decoration:none; color:inherit;
  transition:box-shadow 0.2s, transform 0.2s;
}
.case-relate:hover { box-shadow:var(--shadow-md); color:inherit; }
.case-relate .tag {
  display:inline-block; padding:2px 10px;
  border-radius:50px; font-size:10px; font-weight:600;
  background:rgba(37,99,235,0.06);
  color:var(--accent); letter-spacing:1px;
}
.case-relate h4 {
  font-family:var(--font-display);
  font-size:16px; font-weight:600;
  color:var(--text-primary); margin-bottom:6px;
}
.case-relate p { font-size:13px; color:var(--text-secondary); margin:0; }

/* Responsive */
@media (max-width:768px) {
  .case-hero { padding:60px 0 50px; }
  .case-hero h1 { font-size:28px; }
  .case-metrics { grid-template-columns:repeat(2,1fr); }
  .case-layout { grid-template-columns:1fr; gap:24px; }
  .case-side { position:static; }
  .flow-diagram { flex-direction:column; }
  .flow-arrow { transform:rotate(90deg); }
  .value-grid { grid-template-columns:1fr; }
}
@media (max-width:480px) {
  .case-metrics { grid-template-columns:1fr; }
}

/* ── Case Carousel ── */
.case-carousel {
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
}
.carousel-track {
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;
  padding:8px 0;
  flex:1;
}
.carousel-track::-webkit-scrollbar { display:none; }
.carousel-card {
  flex:0 0 calc(50% - 12px);
  min-width:320px;
  scroll-snap-align:start;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  transition:box-shadow 0.2s;
}
.carousel-card:hover { box-shadow:var(--shadow-md); }
.carousel-card-top {
  padding:28px 28px 20px;
  flex:1;
}
.carousel-tags {
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  margin-bottom:14px;
}
.carousel-tag {
  padding:3px 10px;
  border-radius:50px;
  font-size:10px;
  font-weight:600;
  background:rgba(37,99,235,0.06);
  color:var(--accent);
  letter-spacing:1px;
}
.carousel-card h3 {
  font-family:var(--font-display);
  font-size:18px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:12px;
  line-height:1.35;
}
.carousel-card p {
  font-size:13px;
  color:var(--text-secondary);
  line-height:1.8;
  margin:0;
}
.carousel-card-bottom {
  padding:16px 28px;
  border-top:1px solid var(--border-light);
}
.carousel-btn {
  width:40px; height:40px;
  border-radius:50%;
  border:1px solid var(--border);
  background:#fff;
  color:var(--text-primary);
  font-size:22px;
  line-height:1;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  transition:all 0.2s;
  box-shadow:var(--shadow-sm);
}
.carousel-btn:hover {
  border-color:var(--accent);
  color:var(--accent);
  box-shadow:var(--shadow-md);
}
.carousel-dots {
  display:flex;
  justify-content:center;
  gap:8px;
  margin-top:24px;
}
.carousel-dot {
  width:8px; height:8px;
  border-radius:50%;
  background:var(--border);
  border:none;
  cursor:pointer;
  transition:all 0.2s;
  padding:0;
}
.carousel-dot.active {
  background:var(--accent);
  width:24px;
  border-radius:4px;
}
@media (max-width:768px) {
  .carousel-card { flex:0 0 100%; }
  .carousel-btn { display:none; }
}