#mainNav {
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(251, 176, 64, 0.1);
}

#mainNav .navbar-brand {
  transition: transform 0.3s ease;
}

#mainNav .navbar-brand:hover {
  transform: scale(1.05);
}

#mainNav .nav-link {
  position: relative;
  transition: color 0.3s ease;
  font-weight: 400;
}

#mainNav .nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 50%;
  background-color: #fbb040;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

#mainNav .nav-link:hover::after {
  width: 100%;
}

#mainNav .nav-link:hover {
  color: #fbb040 !important;
}

#mainNav .navbar-toggler {
  border: 1px solid rgba(251, 176, 64, 0.3);
  transition: all 0.3s ease;
}

#mainNav .navbar-toggler:hover {
  border-color: #fbb040;
  background-color: rgba(251, 176, 64, 0.1);
}

#mainNav .navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(251, 176, 64, 0.25);
}

/* Responsive navbar adjustments */
@media (max-width: 991.98px) {
  #mainNav .navbar-collapse {
    background-color: rgba(0, 0, 0, 0.95);
    border-radius: 8px;
    margin-top: 1rem;
    padding: 1rem;
  }

  #mainNav .nav-link {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  #mainNav .nav-link:last-child {
    border-bottom: none;
  }
}