/* ============================================================
   FERROUS LABS — Sector Pages
   ============================================================ */

/* ── Sector Hero ─────────────────────────────────────────── */
.hero--sector { position: relative; overflow: hidden; }

.hero-glow {
  position: absolute;
  width: 900px; height: 900px;
  border-radius: 50%;
  pointer-events: none; z-index: 0;
  top: -35%; right: -20%;
  filter: blur(110px);
  animation: hero-glow-drift 22s ease-in-out infinite;
}
.hero-glow--orange { background: radial-gradient(circle, rgba(255,91,26,0.14) 0%, transparent 65%); }
.hero-glow--cobalt { background: radial-gradient(circle, rgba(37,64,232,0.16) 0%, transparent 65%); }
.hero-glow--violet { background: radial-gradient(circle, rgba(124,92,255,0.16) 0%, transparent 65%); }
@keyframes hero-glow-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%       { transform: translate(-50px, 70px) scale(1.08); }
}

.hero--sector .bg-grid { position: absolute; inset: 0; z-index: 0; }
.hero--sector .container { position: relative; z-index: 1; }

/* ── Why Items (numbered) ────────────────────────────────── */
.why-grid { margin-top: 2.5rem; max-width: 72ch; }

.why-item {
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  gap: 1.5rem;
  padding: 1.625rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.why-item:last-child { border-bottom: none; }

.why-num {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: 0.14em;
  padding-top: 0.35em;
  opacity: 0.5;
  user-select: none;
  display: block;
}
.why-item > p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
}

/* ── Service Rows ────────────────────────────────────────── */
.service-rows { margin-top: 2rem; }

.service-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}
@media (min-width: 768px) {
  .service-row {
    grid-template-columns: 230px 1fr;
    gap: 3rem;
    align-items: start;
  }
}
.service-row:last-child { border-bottom: none; }

.service-row-name {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  padding-top: 0.2em;
}
.service-row-name a {
  color: var(--text-primary);
  transition: color var(--transition);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.service-row-name a svg {
  width: 12px; height: 12px;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.service-row-name a:hover { color: var(--orange); }
.service-row-name a:hover svg { opacity: 1; transform: translateX(0); }

.service-row-desc p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
  margin: 0;
}

/* ── Build Cards (numbered) ──────────────────────────────── */
.build-card-num {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.45;
  margin-bottom: 0.875rem;
  display: block;
}

/* ── Proof Cards ─────────────────────────────────────────── */
.proof-card { display: flex; flex-direction: column; }

.proof-card-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
  border-radius: 2px;
  padding: 0.25rem 0.625rem;
  display: inline-block;
  margin-bottom: 1rem;
  width: fit-content;
}

.proof-card h4 { color: var(--text-primary); margin-bottom: 0.75rem; }
.proof-card > p { flex: 1; margin-bottom: 1.25rem; }

/* ── Sector Switcher ─────────────────────────────────────── */
.sector-nav {
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  margin-top: 0;
}

.sector-nav-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: block;
}

.sector-nav-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
@media (min-width: 640px)  { .sector-nav-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .sector-nav-grid { grid-template-columns: repeat(3, 1fr); } }

.sector-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.125rem 1.375rem;
  background: var(--bg-element);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all var(--transition);
}
.sector-nav-item:hover {
  border-color: rgba(255,91,26,0.3);
  background: var(--bg-elevated);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.sector-nav-item-name {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
  line-height: 1.45;
}
.sector-nav-item:hover .sector-nav-item-name { color: var(--orange); }
.sector-nav-item svg {
  width: 16px; height: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--transition), color var(--transition);
}
.sector-nav-item:hover svg { transform: translateX(3px); color: var(--orange); }