.header {
  position: relative;
  height: 85px;
  background: linear-gradient(145deg, #0d1a3a 0%, #112F6D 50%, #1a4a9e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid rgba(79, 195, 247, 0.3);
}

.header::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    linear-gradient(90deg, transparent 45%, rgba(79, 195, 247, 0.1) 50%, transparent 55%),
    linear-gradient(transparent 95%, rgba(79, 195, 247, 0.3) 100%);
  background-size: 5px 5px;
  opacity: 0.5;
  animation: circuitLines 4s linear infinite;
}

.header::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(79, 195, 247, 0.1), transparent);
  transform: skewX(-25deg);
  transition: all 0.8s;
}

.header:hover::after {
  left: 150%;
}

.header-border {
  position: absolute;
  bottom: -1px; left: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent), 0 0 20px var(--accent);
  opacity: 0.8;
  animation: neonPulse 2s infinite alternate;
}