/* Navigation Bar */
.navbar {
  background-color: #1a237e !important;
  padding: 15px 0;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1030;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  padding: 8px 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  color: #fff !important;
}

.navbar-brand img {
  height: 40px;
  margin-right: 10px;
  transition: transform 0.3s ease;
}

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

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.8);
}

.navbar-toggler:focus {
  box-shadow: none;
  outline: none;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500;
  padding: 0.5rem 1.2rem !important;
  margin: 0 0.2rem;
  position: relative;
  transition: all 0.3s ease;
  font-size: 1.05rem;
}

.nav-link:hover,
.nav-link.active {
  color: #fff !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 1.2rem;
  background-color: #fff;
  transition: all 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: calc(100% - 2.4rem);
}

/* Dropdown Menu */
.dropdown-menu {
  border: none;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  margin-top: 10px;
  padding: 15px;
  min-width: 800px;
  left: 50%;
  transform: translateX(-50%);
}

.dropdown-item {
  padding: 12px 15px;
  border-radius: 8px;
  transition: all 0.2s ease;
  margin-bottom: 5px;
}

.dropdown-item:hover {
  background-color: #f8f9fa;
  transform: translateX(5px);
}

.dropdown-item i {
  font-size: 1.2rem;
  margin-right: 10px;
  color: #1a237e;
  background: #f0f2f5;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

/* Mobile Menu */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: #1a237e;
    padding: 15px;
    border-radius: 0 0 10px 10px;
    margin-top: 10px;
  }
  
  .dropdown-menu {
    min-width: 100%;
    box-shadow: none;
    background: rgba(255, 255, 255, 0.05);
    margin: 10px 0;
  }
  
  .dropdown-item {
    color: rgba(255, 255, 255, 0.9) !important;
    padding: 10px 15px;
  }
  
  .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1);
  }
  
  .dropdown-item i {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
  }
}

/* Active State for Dropdown */
.nav-item.dropdown.show .nav-link {
  color: #fff !important;
  font-weight: 600;
}

/* Badge in Dropdown */
.badge {
  font-weight: 500;
  padding: 5px 10px;
  font-size: 0.75rem;
}

/* View All Courses Button */
.btn-outline-primary {
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
  font-size: 0.85rem;
  padding: 5px 12px;
  transition: all 0.3s ease;
}

.btn-outline-primary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}