/* Case study page — typographic, document-style layout */

.cs-body { background: var(--ink); }

.cs-main { padding: clamp(40px, 6vw, 72px) 0 clamp(80px, 12vw, 140px); }

.cs-article {
  max-width: 780px;
}

.cs-back {
  display: inline-block;
  margin-bottom: 32px;
  font-size: 13px;
  color: var(--text-soft);
  letter-spacing: 0.02em;
  transition: color var(--t-fast);
}
.cs-back:hover { color: var(--cyan); }

.cs-header {
  padding-bottom: clamp(36px, 5vw, 56px);
  margin-bottom: clamp(36px, 5vw, 56px);
  border-bottom: 1px solid var(--border-soft);
}
.cs-logo-chip {
  margin-bottom: 28px;
  min-height: 64px;
}
.cs-logo-chip img {
  height: 44px;
}

.cs-lede {
  margin: 24px 0 36px 0;
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--text-soft);
  line-height: 1.6;
  max-width: 64ch;
}

.cs-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 36px;
  margin-top: 8px;
}
.cs-stat-num {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--cyan);
}
.cs-stat-unit {
  font-size: 14px;
  color: var(--text-soft);
  margin-left: 2px;
}
.cs-stat-label {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-soft);
  letter-spacing: 0.02em;
}

.cs-section {
  padding: clamp(36px, 5vw, 56px) 0;
  border-top: 1px solid var(--border-soft);
}
.cs-section:first-of-type { border-top: 0; padding-top: 0; }

.cs-section .eyebrow { margin-bottom: 12px; }
.cs-section .h2 { margin-bottom: 22px; }

.cs-section p {
  margin: 0 0 18px 0;
  font-size: 16.5px;
  color: var(--text-soft);
  line-height: 1.7;
}
.cs-section p strong {
  color: var(--text);
  font-weight: 500;
  letter-spacing: -0.005em;
}

.cs-list {
  margin: 8px 0 18px 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.cs-list li {
  position: relative;
  padding: 12px 0 12px 24px;
  border-top: 1px solid var(--border-soft);
  font-size: 16px;
  color: var(--text-soft);
  line-height: 1.6;
}
.cs-list li:first-child { border-top: 0; }
.cs-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 14px;
  height: 1px;
  background: var(--cyan);
}

.cs-cta {
  text-align: left;
  border-top: 1px solid var(--border-soft);
  padding-top: clamp(40px, 6vw, 64px);
}

/* Post-booking step list */
.booked-steps {
  list-style: none;
  padding: 0;
  margin: 16px 0 0 0;
  display: grid;
  gap: 18px;
}
.booked-steps li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px 22px 22px 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.booked-step-num {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  padding-top: 3px;
}
.booked-step-title {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.005em;
  margin: 0 0 6px 0;
  color: var(--text);
}
.booked-steps li p {
  margin: 0;
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.55;
}
.cs-cta .display { margin-bottom: 18px; }
.cs-cta-sub {
  font-size: 16px;
  color: var(--text-soft);
  margin: 0 0 28px;
}

@media (max-width: 720px) {
  .cs-stats { grid-template-columns: 1fr; }
}