/* Navigation Bar */
.navbar-custom {
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    /* Above Bootstrap sticky-top content (1020) so the navbar is never covered,
       but below the modal layer (.modal = 2000) so dialogs still overlay it. */
    z-index: 1030;
    transition: var(--transition);
    overflow: visible;
    min-height: 70px;
    padding: 0.5rem 0;
}

.navbar-custom.scrolled {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
    font-size: var(--fs-xl);
    font-weight: 800;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1001;
    gap: 0.5rem;
}

.navbar-brand img,
.logo {
    height: 50px;
    width: auto;
    max-width: 200px;
    display: block;
    flex-shrink: 0;
    position: relative;
    z-index: 1001;
    transition: all 0.3s ease;
    filter: brightness(1);
}

.navbar-brand:hover img,
.navbar-brand:hover .logo {
    filter: brightness(0.75);
}

.navbar-brand:hover {
    color: auto !important;
}

/* Navigation Links */
.navbar-nav .nav-link {
    color: var(--text-color) !important;
    font-weight: 600;
    margin: 0 var(--spacing-sm);
    position: relative;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link.active::after {
    width: 100%;
}

/* Dropdown Menu */
.dropdown-menu {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.dropdown-item {
    color: var(--text-color);
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.dropdown-item.active {
    background-color: var(--primary-color);
    color: white;
}

/* Search Form in Navbar */
.navbar-search {
    display: flex;
    align-items: center;
}

.navbar-search .form-control {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: var(--transition);
}

.navbar-search .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

/* CTA Button in Navbar */
.navbar-cta {
    margin-left: var(--spacing-lg);
}

.navbar-cta .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
}

/* Mobile Hamburger */
.navbar-toggler {
    border: none;
    padding: var(--spacing-md);
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230066cc' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Sticky Navigation */
@media (max-width: 991px) {
    .navbar-nav {
        padding-top: var(--spacing-lg);
        border-top: 2px solid var(--border-color);
        margin-top: var(--spacing-lg);
    }
    
    .navbar-nav .nav-link {
        padding: var(--spacing-md) 0;
        margin: 0;
    }
    
    .navbar-nav .nav-link::after {
        display: none;
    }
    
    .navbar-cta {
        margin-left: 0;
        margin-top: var(--spacing-lg);
    }
}

/* Navbar Variations */
.navbar-dark {
    background: var(--dark-color) !important;
}

.navbar-dark .navbar-brand {
    color: white !important;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: white !important;
}

.navbar-dark .navbar-nav .nav-link.active {
    color: var(--secondary-color) !important;
}

/* Transparent Navbar */
.navbar-transparent {
    background: transparent !important;
    box-shadow: none;
}

.navbar-transparent .navbar-brand {
    color: white !important;
}

.navbar-transparent .navbar-nav .nav-link {
    color: white !important;
}

.navbar-transparent .navbar-nav .nav-link::after {
    background: white;
}

/* Breadcrumb Navigation */
.breadcrumb {
    background-color: var(--light-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.breadcrumb-item {
    color: var(--text-color);
}

.breadcrumb-item.active {
    color: var(--light-text);
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb-item a:hover {
    color: var(--secondary-color);
}

.breadcrumb-item + .breadcrumb-item::before {
    content: '/';
    color: var(--light-text);
}