Glass Navbar

<nav class="nuda-glass-nav" aria-label="Main navigation">
  <span class="nuda-glass-nav__brand">Nuda</span>
  <ul class="nuda-glass-nav__links">
    <li><a class="nuda-glass-nav__link nuda-glass-nav__link--active" href="#" aria-current="page">Home</a></li>
    <li><a class="nuda-glass-nav__link" href="#">Docs</a></li>
    <li><a class="nuda-glass-nav__link" href="#">Pricing</a></li>
  </ul>
</nav>

/* Glass Navbar
   Blurred sticky nav with a glowing lime active pill.
   Customize: --glass-nav-accent, --glass-nav-tint */

.nuda-glass-nav {
  --glass-nav-accent: #e4ff54;
  --glass-nav-tint: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 260px;
  padding: 10px 14px;
  border-radius: 14px;
  background: var(--glass-nav-tint);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

.nuda-glass-nav__brand {
  color: #fafafa;
  font: 800 0.9rem ui-sans-serif, system-ui;
  letter-spacing: -0.02em;
}

.nuda-glass-nav__links {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nuda-glass-nav__link {
  display: block;
  padding: 5px 10px;
  border-radius: 8px;
  color: rgba(250, 250, 250, 0.6);
  font: 600 0.72rem ui-sans-serif, system-ui;
  text-decoration: none;
  transition: color 0.25s ease, background 0.25s ease;
}

.nuda-glass-nav__link:hover,
.nuda-glass-nav__link:focus-visible {
  color: #fafafa;
  outline: none;
}

.nuda-glass-nav__link:focus-visible {
  box-shadow: 0 0 0 2px rgba(228, 255, 84, 0.6);
}

.nuda-glass-nav__link--active {
  color: #09090b;
  background: var(--glass-nav-accent);
  box-shadow: 0 0 14px rgba(228, 255, 84, 0.5);
  animation: nuda-glass-nav-pulse 3s ease-in-out infinite;
  will-change: box-shadow;
}

@keyframes nuda-glass-nav-pulse {
  0%, 100% { box-shadow: 0 0 10px rgba(228, 255, 84, 0.4); }
  50% { box-shadow: 0 0 18px rgba(228, 255, 84, 0.7); }
}

@media (prefers-reduced-motion: reduce) {
  .nuda-glass-nav__link--active { animation: none; }
  .nuda-glass-nav__link { transition: none; }
}