/* ============================================================
   navbar.css — Navbar & Top Strip
   ============================================================ */

#navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface-dark);
  transition: box-shadow 0.3s ease;
}

#navbar.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

/* Mobile menu hidden by default */
#mobile-menu {
  display: none;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 1rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

#mobile-menu.open {
  display: flex;
}

/* Nav link hover */
.nav-link {
  color: white;
  font-weight: 500;
  transition: color 0.2s;
  text-transform: capitalize;
}

.nav-link:hover {
  color: var(--brand-cyan);
}

/* CTA Button */
.btn-cta {
  background: linear-gradient(90deg, var(--brand-cyan), var(--brand-blue));
  color: white;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border-radius: 0.25rem;
  transition: opacity 0.2s;
}

.btn-cta:hover {
  opacity: 0.9;
}