/* Case Study Page Styles */
.cs-hero {
  padding: 120px 0 64px;
  background: var(--bg);
}
.cs-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text3);
  margin-bottom: 24px;
  transition: color 0.2s;
}
.cs-back:hover {
  color: var(--accent);
}
.cs-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(124, 147, 195, 0.08);
  color: var(--accent);
  border: 1px solid rgba(124, 147, 195, 0.15);
  margin-bottom: 16px;
}
.cs-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.cs-subtitle {
  font-size: 17px;
  color: var(--text2);
  max-width: 600px;
  line-height: 1.7;
}

.cs-metrics {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}
.cs-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 24px;
}
.cs-metric {
  text-align: center;
}
.cs-metric-num {
  font-family: var(--mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  display: block;
}
.cs-metric-lbl {
  font-size: 13px;
  color: var(--text3);
  margin-top: 4px;
}

.cs-content {
  padding: 80px 0;
  background: var(--bg);
}
.cs-content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  align-items: start;
}
.cs-main {
}
.cs-sidebar {
  position: sticky;
  top: 84px;
}
.cs-section-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}
.cs-text {
  font-size: 15px;
  color: var(--text2);
  line-height: 1.72;
  margin-bottom: 24px;
}
.cs-list {
  margin-bottom: 24px;
}
.cs-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text2);
  margin-bottom: 8px;
}
.cs-list li::before {
  content: "→";
  color: var(--accent);
  font-family: var(--mono);
  flex-shrink: 0;
}

.cs-tech {
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
}
.cs-tech-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text4);
  margin-bottom: 12px;
}
.cs-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.cs-cta {
  padding: 80px 0;
  background: var(--bg2);
  text-align: center;
}

@media (max-width: 900px) {
  .cs-content-grid {
    grid-template-columns: 1fr;
  }
  .cs-sidebar {
    position: static;
  }
}