/* ─────────────────────────────────────────────────────────────
   Neural Data Fabric — Pillar pages (hub & spoke cluster)
   Shared stylesheet for: AI Data Fabric, AI Governance,
   Splunk Modernization, Telemetry Data Platforms.
   Uses the global tokens from /style.css.
   ───────────────────────────────────────────────────────────── */

.pillar-page {
  position: relative;
  z-index: 1;
  padding: 0 0 80px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ── Hero ── */
.pillar-hero {
  padding: 72px 48px 48px;
  border-bottom: 1px solid var(--border-subtle);
}
.pillar-breadcrumb {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--text-ghost);
  margin-bottom: 28px;
}
.pillar-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}
.pillar-breadcrumb a:hover { color: var(--accent); }
.pillar-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.pillar-h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  font-size: var(--type-hero);
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 22px;
}
.pillar-subhead {
  font-family: 'Barlow', sans-serif;
  font-weight: 300;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 760px;
}
.pillar-spec-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 28px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.pillar-spec-strip .pillar-spec-sep { color: var(--text-ghost); }

/* ── Sections ── */
.pillar-section {
  padding: 56px 48px 8px;
}
.pillar-section-header {
  margin-bottom: 24px;
}
.pillar-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.pillar-h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: var(--type-display);
  line-height: 1.05;
  color: var(--text-primary);
  margin-top: 10px;
  letter-spacing: -0.01em;
}
.pillar-body {
  font-family: 'Barlow', sans-serif;
  font-weight: 300;
  font-size: var(--type-body);
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 780px;
  margin-bottom: 16px;
}
.pillar-body--lead {
  font-size: 17px;
  color: var(--text-primary);
}
.pillar-body--emphasis {
  color: var(--text-primary);
  border-left: 2px solid var(--accent);
  padding-left: 18px;
  margin-top: 24px;
}

/* ── Card grid ── */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  margin-top: 8px;
}
.pillar-card {
  background: var(--black);
  padding: 26px 24px;
  min-height: 150px;
}
.pillar-card-icon {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 14px;
}
.pillar-card-h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 19px;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.15;
}
.pillar-card-body {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* ── FAQ ── */
.pillar-faq-item {
  border-top: 1px solid var(--border-subtle);
  padding: 18px 0;
}
.pillar-faq-item:last-child { border-bottom: 1px solid var(--border-subtle); }
.pillar-faq-q {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.pillar-faq-a {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 800px;
}

/* ── Internal links ("Explore the fabric") ── */
.pillar-links { padding: 48px 48px 8px; }
.pillar-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  margin-top: 8px;
}
.pillar-link-card {
  display: block;
  background: var(--black);
  padding: 20px 22px;
  text-decoration: none;
  transition: background 0.2s ease;
}
.pillar-link-card:hover { background: #05070a; }
.pillar-link-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.pillar-link-desc {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-muted);
}
.pillar-link-arrow {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--accent);
  font-size: 11px;
  display: inline-block;
  margin-top: 10px;
}

/* ── CTA ── */
.pillar-cta {
  margin: 48px 48px 0;
  padding: 36px 32px;
  border: 1px solid var(--border-mid);
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
}
.pillar-cta-heading {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: var(--text-primary);
}
.pillar-cta-body {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 560px;
  margin-top: 6px;
}
.pillar-cta-button {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--black);
  background: var(--accent);
  text-decoration: none;
  padding: 14px 22px;
  white-space: nowrap;
}
.pillar-cta-button:hover { opacity: 0.88; }
.pillar-cta-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--text-ghost);
  margin-top: 10px;
  line-height: 1.6;
}

/* ── Ghost data-stream background (subtle, behind content) ── */
.data-stream-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  opacity: 0.07;
}
.data-column {
  position: absolute;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55em;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.68rem;
  color: rgba(69, 194, 122, 0.9);
  line-height: 1.6;
  white-space: nowrap;
  animation: streamScroll var(--scroll-duration, 22s) linear infinite;
  animation-delay: var(--scroll-delay, 0s);
}
@keyframes streamScroll {
  0%   { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}
.data-column:nth-child(1) { left: 5%;  --scroll-duration: 20s; --scroll-delay: 0s;  }
.data-column:nth-child(2) { left: 45%; --scroll-duration: 26s; --scroll-delay: -8s; }
.data-column:nth-child(3) { left: 78%; --scroll-duration: 18s; --scroll-delay: -3s; }