/* Site background — shared across all pages with animated background.
   Used by: index.html, pricing.html, product.html, insights.html */

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 20%, transparent 75%);
  transform: translateY(var(--site-bg-scroll, 0));
}

#site-bg {
  --site-bg-opacity: 0.52;
  --site-bg-art-strength: 0.88;
  --site-bg-art-brightness: 0.72;
  --site-bg-art-saturate: 0.9;
  --site-bg-art-scrim: 0.22;
  --pointer-x: 50%;
  --pointer-y: 38%;
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.site-bg-art {
  position: absolute;
  inset: -8%;
  z-index: 0;
  background-image: url("/assets/images/hero-nebula-network.webp?v=5f228fc45b29");
  background-position: 58% 42%;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: calc(var(--site-bg-opacity, 0.52) * var(--site-bg-art-strength, 0.88));
  transform: translateY(var(--site-bg-scroll, 0)) scale(1.02);
  filter: brightness(var(--site-bg-art-brightness, 0.72))
    saturate(var(--site-bg-art-saturate, 0.9))
    contrast(1.02);
  animation: site-bg-art-drift 52s ease-in-out infinite alternate;
}

.site-bg-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    165deg,
    rgba(5, 8, 16, calc(var(--site-bg-art-scrim, 0.22) * 0.75)) 0%,
    rgba(5, 8, 16, var(--site-bg-art-scrim, 0.22)) 45%,
    rgba(5, 8, 16, calc(var(--site-bg-art-scrim, 0.22) * 1.05)) 100%
  );
}

@keyframes site-bg-art-drift {
  from {
    transform: translateY(var(--site-bg-scroll, 0)) scale(1.01) translate(-0.6%, -0.3%);
  }
  to {
    transform: translateY(var(--site-bg-scroll, 0)) scale(1.04) translate(0.7%, 0.4%);
  }
}

#site-bg[data-art-layer="true"] #site-bg-canvas {
  opacity: calc(var(--site-bg-opacity, 0.52) * 0.72);
  visibility: visible;
  transform: none;
}

.site-bg-spotlight {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: visible;
  opacity: 1;
  pointer-events: none;
}

.site-bg-spotlight-beam {
  position: absolute;
  left: 0;
  top: 0;
  width: 420px;
  height: 420px;
  margin: 0;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    rgba(0, 229, 255, 0.22),
    rgba(0, 120, 160, 0.09) 40%,
    transparent 64%
  );
  opacity: 0;
  visibility: hidden;
  will-change: transform, opacity;
  transform: translate3d(-9999px, -9999px, 0) translate(-50%, -50%);
  transition: none;
}

#site-bg.site-bg--pointer .site-bg-spotlight-beam {
  opacity: calc(var(--site-bg-opacity, 0.52) * 1.15);
  visibility: visible;
}

#site-bg-canvas {
  display: block;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: var(--site-bg-opacity, 0.52);
  transform: translateY(calc(var(--site-bg-scroll, 0) * -0.25));
}

.site-bg--static #site-bg-canvas,
.site-bg--static .site-bg-spotlight {
  display: none;
}

.site-bg--static .site-bg-art {
  animation: none;
}

@media (prefers-reduced-motion: reduce) {
  #site-bg-canvas,
  .site-bg-spotlight {
    display: none;
  }

  .site-bg-art {
    animation: none;
  }

  body::before {
    transform: none;
  }
}

@media (pointer: coarse) {
  .site-bg-spotlight {
    display: none;
  }
}

@media (max-width: 768px) {
  .site-bg-art {
    background-position: 45% 35%;
  }

  .site-bg-spotlight-beam {
    width: 280px;
    height: 280px;
  }
}

/* Ensure content sits above background */
.site-header,
.site-header-shell,
main,
.site-footer {
  position: relative;
  z-index: 1;
}