/* ============================================================
   NORTH HORIZON PARTNERS - casedetail.css
   Case-studies page: header, filter chips, detail blocks.
   ============================================================ */

.cs-page-header {
  padding-top: calc(var(--nav-h) + clamp(4rem, 10vh, 7rem));
  padding-bottom: clamp(3rem, 7vh, 5rem);
  position: relative;
  overflow: hidden;
}

.cs-page-header::before {
  content: '';
  position: absolute;
  left: 50%;
  top: -360px;
  width: 1100px;
  height: 640px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center,
              rgba(46, 107, 242, 0.18) 0%,
              rgba(46, 107, 242, 0.05) 45%,
              transparent 70%);
  pointer-events: none;
}

.cs-page-header .container { position: relative; }

.cs-page-sub {
  margin-top: 1.4rem;
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 58ch;
}

/* ── Detail blocks ────────────────────────────────────────── */

.cs-detail-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-bottom: var(--section-py);
}

.cs-detail {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 4vw, 2.8rem);
  scroll-margin-top: calc(var(--nav-h) + 24px);
}

.cs-detail-head {
  display: flex;
  align-items: baseline;
  gap: 1.4rem;
  flex-wrap: wrap;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--border);
}

.cs-detail-client {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 600;
}

.cs-detail-niche {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.cs-detail-result {
  margin-left: auto;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-bright);
  white-space: nowrap;
}

.cs-detail-cols {
  margin-top: 1.6rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.2rem;
}

.cs-detail h3 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.cs-detail-cols p {
  margin-top: 0.7rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.cs-detail-results { margin-top: 1.8rem; }

.cs-detail-results ul {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem 2.2rem;
}

.cs-detail-results li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: 0.9375rem;
  line-height: 1.55;
}

.cs-detail-results li::before {
  content: '\2713';
  color: var(--accent-bright);
  font-weight: 700;
  flex: none;
}

/* flagship variant (Noble) */
.cs-detail-flagship {
  background: var(--accent-glow-soft);
  border-color: var(--accent-border-soft);
}

.cs-detail-flagship .noble-logo-strip {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.cs-detail-flagship .noble-logo-strip img {
  height: 34px;
  width: auto;
  background: var(--paper);
  border-radius: 6px;
  padding: 5px 10px;
}

/* ── Responsive ───────────────────────────────────────────── */

@media (max-width: 860px) {
  .cs-detail-cols { grid-template-columns: 1fr; gap: 1.4rem; }
  .cs-detail-results ul { grid-template-columns: 1fr; }
  .cs-detail-result { margin-left: 0; }
}