/* ========================================
   NECTR LANE — Case Study shared layout
   ======================================== */

/* ── Hero ── */
.cs-hero {
  padding: 180px var(--pad-x) 100px;
  border-bottom: 1px solid var(--line);
}
.cs-back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 64px;
  transition: color 0.2s;
}
.cs-back:hover { color: var(--accent); }
.cs-back-arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease);
}
.cs-back:hover .cs-back-arrow { transform: translateX(-4px); }

.cs-hero-meta {
  display: flex;
  gap: 32px;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.cs-hero-meta .num { color: var(--accent); }
.cs-hero-meta .sep { color: var(--ink-faint); }

.cs-hero h1 {
  font-family: var(--f-display);
  font-size: clamp(72px, 11vw, 180px);
  line-height: 0.88;
  letter-spacing: -0.04em;
  margin-bottom: 0;
}
.cs-hero h1 em { font-style: italic; color: var(--accent); }

/* ── Overview ── */
.cs-overview {
  padding: var(--section) var(--pad-x);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  align-items: start;
  border-bottom: 1px solid var(--line);
}
.cs-overview-label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 6px;
  position: sticky;
  top: 100px;
}
.cs-overview-text {
  font-size: clamp(17px, 1.6vw, 22px);
  line-height: 1.7;
  color: var(--ink-dim);
  max-width: 72ch;
}
.cs-overview-text strong { color: var(--ink); font-weight: 400; }

@media (max-width: 860px) {
  .cs-overview { grid-template-columns: 1fr; gap: 20px; }
  .cs-overview-label { position: static; }
}

/* ── Details strip ── */
.cs-details {
  padding: 56px var(--pad-x);
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.cs-detail-block {}
.cs-detail-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 12px;
}
.cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cs-tag {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

/* ── Visual gallery ── */
.cs-visuals {
  padding: var(--section) var(--pad-x);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}
.cs-visual-full { grid-column: 1 / -1; }

.cs-img {
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--line);
}
.cs-img-wide  { aspect-ratio: 16 / 8; }
.cs-img-std   { aspect-ratio: 4 / 3; }
.cs-img-tall  { aspect-ratio: 4 / 5; }
.cs-img-sq    { aspect-ratio: 1; }

.cs-img-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.7;
  transition: transform 0.8s var(--ease), opacity 0.4s;
}
.cs-img:hover .cs-img-bg { transform: scale(1.04); opacity: 0.85; }

.cs-img-label {
  position: absolute;
  bottom: 16px;
  left: 20px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  z-index: 1;
}

@media (max-width: 860px) {
  .cs-visuals { grid-template-columns: 1fr; }
  .cs-visual-full { grid-column: 1; }
}

/* ── Next case ── */
.cs-next {
  padding: var(--section) var(--pad-x);
}
.cs-next-label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 32px;
}
.cs-next-link {
  font-family: var(--f-display);
  font-size: clamp(48px, 9vw, 140px);
  line-height: 0.9;
  letter-spacing: -0.035em;
  display: inline-flex;
  align-items: flex-start;
  gap: 0.1em;
  transition: color 0.3s;
}
.cs-next-link:hover { color: var(--accent); }
.cs-next-link em { font-style: italic; color: var(--accent); }
.cs-next-link .arrow {
  font-size: 0.35em;
  margin-top: 0.28em;
  display: inline-block;
  transition: transform 0.4s var(--ease);
}
.cs-next-link:hover .arrow { transform: translate(0.2em, -0.2em); }