/* ===============================
   VISUAL BACKGROUND LAYERS
================================ */

#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.neon-grid {
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(0,255,240,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,240,0.08) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
  mask-image: radial-gradient(circle at center, black 40%, transparent 75%);
  opacity: .25;
  z-index: 1;
  pointer-events: none;
}

@keyframes gridMove {
  from { background-position: 0 0; }
  to { background-position: 60px 60px; }
}

/* Ensure content is above visuals */
.nav,
.hero,
.section,
footer {
  position: relative;
  z-index: 3;
}