<div class="bga-05">
  <div class="bga-05__scene">
    <div class="bga-05__grid"></div>
    <div class="bga-05__chevrons"></div>
    <div class="bga-05__glow"></div>
  </div>
</div>

.bga-05, .bga-05 *, .bga-05 *::before, .bga-05 *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.bga-05 {
  min-height: 460px;
  display: grid;
  place-items: stretch;
}

.bga-05__scene {
  width: 100%;
  min-height: 460px;
  position: relative;
  overflow: hidden;
  background: #11131c;
}

/* Layer 1: moving diagonal stripes */
.bga-05__scene::before {
  content: "";
  position: absolute;
  inset: -50%;
  background: repeating-linear-gradient(
    45deg,
    rgba(255,90,120,0.12) 0 20px,
    transparent 20px 40px
  );
  animation: bga-05-slideDiag 6s linear infinite;
}

/* Layer 2: scrolling grid */
.bga-05__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(80,200,255,0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80,200,255,0.18) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: bga-05-scrollGrid 8s linear infinite;
}

/* Layer 3: animated chevrons */
.bga-05__chevrons {
  position: absolute;
  inset: -40px;
  background-image:
    linear-gradient(135deg, rgba(255,200,60,0.16) 25%, transparent 25%),
    linear-gradient(225deg, rgba(255,200,60,0.16) 25%, transparent 25%);
  background-size: 60px 60px;
  background-position: 0 0;
  animation: bga-05-chevronMove 5s linear infinite;
  mix-blend-mode: screen;
}

/* Center glow to add depth */
.bga-05__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, transparent 30%, rgba(17,19,28,0.9) 100%);
  pointer-events: none;
}

@keyframes bga-05-slideDiag {
  from { transform: translate(0,0); }
  to   { transform: translate(56px, 56px); }
}
@keyframes bga-05-scrollGrid {
  from { background-position: 0 0, 0 0; }
  to   { background-position: 48px 48px, 48px 48px; }
}
@keyframes bga-05-chevronMove {
  from { background-position: 0 0; }
  to   { background-position: 0 60px; }
}

@media (prefers-reduced-motion: reduce) {
  .bga-05__scene::before,
  .bga-05__grid,
  .bga-05__chevrons {
    animation: none !important;
  }
}