/* TRANSPARENT PRO NAVBAR (index.php default) */
.pro-navbar {
  background: transparent;
  padding: 0.5rem 0;
  transition: all 0.3s ease;
}

.opex-logo {
  height: 70px;
  filter: invert(35%) sepia(90%) saturate(4000%) hue-rotate(180deg);
}

/* CENTER MENU */
.pro-menu .nav-link {
  position: relative;
  color: #fff;
  font-weight: 500;
  padding: 0.5rem 1.2rem;
  transition: color 0.3s ease;
}

/* UNDERLINE HOVER EFFECT (per-link underline stays) */
.pro-menu .nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: #0d6efd;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.pro-menu .nav-link:hover::after {
  width: 60%;
}

/* GLOBAL hover-active (index.php only) */
.pro-navbar.hover-active {
  background-color: #fff !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.pro-navbar.hover-active .nav-link {
  color: #000 !important;
}

.pro-navbar.hover-active .navbar-brand {
  color: #000 !important;
}

/* DEFAULT style for other pages */
.pro-navbar.navbar-default {
  background-color: #fff !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.pro-navbar.navbar-default .nav-link {
  color: #000 !important;
}

.pro-navbar.navbar-default .navbar-brand {
  color: #000 !important;
}