:root {
  --fond: #0b0c0b;
  --vert-fluo: #39FF14;
  --vert-fonce: #004d00;
  --bronze: #2e2e2e;
  --accent: #00ffcc;
}

body {
  margin: 0;
  background: radial-gradient(circle at center, #0f0f0f 0%, #000000 100%);
  color: var(--vert-fluo);
  font-family: 'Courier New', Courier, monospace;
}

.header2 {
  background-color: transparent;
  padding: 0;
  width: 100%;
}

.nav-bar {
  display: flex;
  flex-wrap: nowrap;
  width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-bar::-webkit-scrollbar {
  display: none;
}

.nav-item {
  flex: 1 1 10%;
  max-width: 10%;
  background-color: var(--bronze);
  color: var(--vert-fluo);
  padding: 10px 0;
  text-align: center;
  font-weight: bold;
  border-right: 1px solid #111;
  user-select: none;
  cursor: pointer;
  font-size: 0.75rem;
  letter-spacing: 1px;
  transition: transform 0.2s ease, background-color 0.3s ease, box-shadow 0.2s ease;
  text-shadow:
    0 0 2px var(--vert-fluo),
    0 0 4px var(--vert-fluo),
    0 0 6px var(--vert-fluo),
    0 0 10px var(--vert-fluo);
  animation: flicker 2.5s infinite;
}

.nav-item:hover {
  background-color: #111;
  transform: scale(1.05);
  box-shadow: 0 0 10px var(--vert-fluo);
}

.nav-item:active {
  background-color: var(--accent);
  color: #000;
  box-shadow: 0 0 20px var(--accent);
  transform: scale(0.98);
}

@keyframes flicker {
  0%, 100% {
    opacity: 1;
    text-shadow:
      0 0 2px var(--vert-fluo),
      0 0 4px var(--vert-fluo),
      0 0 6px var(--vert-fluo),
      0 0 10px var(--vert-fluo);
  }
  50% {
    opacity: 0.85;
    text-shadow:
      0 0 1px var(--vert-fluo),
      0 0 3px var(--vert-fluo);
  }
}

/* Responsive */
@media (max-width: 600px) {
  .nav-item {
    font-size: 0.6rem;
    padding: 6px 0;
  }
}

@media (min-width: 1200px) {
  .nav-item {
    font-size: 1rem;
    padding: 12px 0;
  }
}