/* ============================================
   WAREHOUSE INTELLIGENCE — Interactive Ecosystem
   ============================================ */

.intelligence {
  position: relative;
  z-index: 2;
  padding: var(--space-32) var(--space-6);
}

.intelligence__inner {
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.intelligence__header {
  margin-bottom: var(--space-20);
}

.intelligence__header .section-headline {
  max-width: 700px;
  margin-inline: auto;
}

.intelligence__header .section-label {
  justify-content: center;
}

.intelligence__header .section-desc {
  margin-inline: auto;
}

/* ── Node Graph ── */
.intelligence__graph {
  position: relative;
  width: 100%;
  height: 600px;
  margin: 0 auto;
}

/* SVG connections layer */
.intelligence__connections {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.intelligence__connection-path {
  fill: none;
  stroke: rgba(0, 163, 255, 0.12);
  stroke-width: 1.5;
  transition: stroke 0.4s var(--ease-out), stroke-width 0.4s var(--ease-out);
}

.intelligence__connection-path.active {
  stroke: rgba(0, 163, 255, 0.5);
  stroke-width: 2;
  filter: drop-shadow(0 0 6px rgba(0, 163, 255, 0.3));
}

.intelligence__connection-path.dimmed {
  stroke: rgba(0, 163, 255, 0.04);
}

/* Animated flow particles along paths */
.intelligence__flow-particle {
  fill: var(--blue-cyan);
  r: 3;
  opacity: 0;
  filter: drop-shadow(0 0 4px rgba(0, 212, 255, 0.6));
}

.intelligence__flow-particle.active {
  opacity: 1;
}

/* ── Node Cards ── */
.intelligence__node {
  position: absolute;
  z-index: 5;
  background: rgba(7, 17, 30, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 163, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  transition: all 0.4s var(--ease-out);
  min-width: 110px;
  transform: translate(-50%, -50%);
}

.intelligence__node::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(0, 163, 255, 0.2), transparent, rgba(0, 163, 255, 0.1));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}

.intelligence__node:hover,
.intelligence__node.active {
  border-color: rgba(0, 163, 255, 0.4);
  box-shadow: 0 0 30px rgba(0, 163, 255, 0.15), 0 8px 30px rgba(0, 0, 0, 0.4);
  transform: translate(-50%, -50%) scale(1.08);
}

.intelligence__node:hover::before,
.intelligence__node.active::before {
  opacity: 1;
}

.intelligence__node.dimmed {
  opacity: 0.3;
  transform: translate(-50%, -50%) scale(0.95);
}

.intelligence__node-icon svg {
  width: 20px;
  height: 20px;
}

.intelligence__node-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(0, 163, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.4s var(--ease-out);
}

.intelligence__node:hover .intelligence__node-icon,
.intelligence__node.active .intelligence__node-icon {
  background: rgba(0, 163, 255, 0.2);
  box-shadow: 0 0 15px rgba(0, 163, 255, 0.2);
}

.intelligence__node-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

/* ── Node Positions (organic layout) ── */
.intelligence__node--warehouse  { top: 46%; left: 42%; }
.intelligence__node--supplier   { top: 8%;  left: 14%; }
.intelligence__node--truck      { top: 8%;  left: 58%; }
.intelligence__node--customer   { top: 18%; left: 76%; }
.intelligence__node--barcode    { top: 38%; left: 74%; }
.intelligence__node--inventory  { top: 60%; left: 70%; }
.intelligence__node--erp        { top: 80%; left: 44%; }
.intelligence__node--ecommerce  { top: 64%; left: 12%; }
.intelligence__node--returns    { top: 82%; left: 70%; }

/* ── Center pulse ── */
.intelligence__center-glow {
  position: absolute;
  top: 45%;
  left: 47%;
  width: 200px;
  height: 200px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 163, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: glow-breathe 6s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .intelligence__graph {
    height: 500px;
  }

  .intelligence__node {
    padding: var(--space-3) var(--space-4);
    min-width: 90px;
  }

  .intelligence__node-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .intelligence {
    padding: var(--space-20) var(--space-4);
  }

  .intelligence__graph {
    height: 420px;
  }

  .intelligence__node {
    padding: var(--space-2) var(--space-3);
    min-width: 75px;
  }

  .intelligence__node-label {
    font-size: 9px;
  }

  /* Hide only Truck on tablet */
  .intelligence__node--truck {
    display: none;
  }

  /* Reposition 8 nodes for tablet */
  .intelligence__node--warehouse  { top: 46%; left: 44%; }
  .intelligence__node--supplier   { top: 8%;  left: 12%; }
  .intelligence__node--customer   { top: 8%;  left: 74%; }
  .intelligence__node--barcode    { top: 28%; left: 74%; }
  .intelligence__node--inventory  { top: 60%; left: 70%; }
  .intelligence__node--erp        { top: 80%; left: 44%; }
  .intelligence__node--ecommerce  { top: 65%; left: 12%; }
  .intelligence__node--returns    { top: 82%; left: 68%; }
}

@media (max-width: 480px) {
  .intelligence__graph {
    height: 340px;
  }

  .intelligence__node {
    padding: var(--space-1) var(--space-2);
    min-width: 60px;
    gap: var(--space-1);
  }

  .intelligence__node-icon {
    width: 26px;
    height: 26px;
  }

  .intelligence__node-label {
    font-size: 8px;
  }

  /* Hide Truck and ERP on mobile */
  .intelligence__node--truck,
  .intelligence__node--erp {
    display: none;
  }

  /* Reposition 7 nodes for mobile */
  .intelligence__node--warehouse  { top: 44%; left: 44%; }
  .intelligence__node--supplier   { top: 8%;  left: 12%; }
  .intelligence__node--customer   { top: 8%;  left: 76%; }
  .intelligence__node--barcode    { top: 28%; left: 76%; }
  .intelligence__node--inventory  { top: 65%; left: 72%; }
  .intelligence__node--ecommerce  { top: 68%; left: 12%; }
  .intelligence__node--returns    { top: 86%; left: 65%; }
}