/* Modern Navigation Styles */

.navbar {
    background: var(--bg-card) !important;
    border-bottom: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-md) !important;
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar-brand {
    font-weight: 700 !important;
    font-size: 1.5rem !important;
    color: var(--primary-color) !important;
    text-decoration: none !important;
    display: flex !important;
    align-items: center !important;
    gap: var(--space-sm) !important;
    transition: all var(--transition-fast) !important;
}

.navbar-brand:hover {
    color: var(--primary-hover) !important;
    transform: scale(1.05);
}

.navbar-nav {
    align-items: center;
}

.nav-item {
    margin: 0 var(--space-xs);
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500 !important;
    padding: var(--space-sm) var(--space-md) !important;
    border-radius: var(--radius-md) !important;
    transition: all var(--transition-fast) !important;
    display: flex !important;
    align-items: center !important;
    gap: var(--space-xs) !important;
    text-decoration: none !important;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    background: var(--bg-hover) !important;
    transform: translateY(-1px);
}

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

/* Dropdown Improvements */
.dropdown-menu {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-xl) !important;
    padding: var(--space-sm) !important;
    margin-top: var(--space-xs) !important;
    min-width: 200px;
    backdrop-filter: blur(20px);
}

.dropdown-item {
    color: var(--text-secondary) !important;
    padding: var(--space-sm) var(--space-md) !important;
    border-radius: var(--radius-md) !important;
    transition: all var(--transition-fast) !important;
    display: flex !important;
    align-items: center !important;
    gap: var(--space-sm) !important;
    text-decoration: none !important;
}

.dropdown-item:hover {
    color: var(--primary-color) !important;
    background: var(--bg-hover) !important;
    transform: translateX(4px);
}

.dropdown-toggle::after {
    transition: transform var(--transition-fast);
}

.dropdown-toggle[aria-expanded="true"]::after {
    transform: rotate(180deg);
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    margin-left: var(--space-md);
}

.theme-toggle:hover {
    background: var(--bg-hover);
    color: var(--primary-color);
    transform: rotate(180deg);
}

/* Mobile Navigation */
.navbar-toggler {
    border: none !important;
    padding: var(--space-sm) !important;
    border-radius: var(--radius-md) !important;
    background: var(--bg-secondary) !important;
    transition: all var(--transition-fast) !important;
}

.navbar-toggler:hover {
    background: var(--bg-hover) !important;
}

.navbar-toggler-icon {
    background-image: none !important;
    width: 24px !important;
    height: 24px !important;
    position: relative;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after,
.navbar-toggler-icon {
    background: var(--text-secondary) !important;
}

/* Custom hamburger menu */
.navbar-toggler-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    transition: all var(--transition-fast);
}

.navbar-toggler-icon::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    transition: all var(--transition-fast);
}

.navbar-toggler-icon {
    background: var(--text-secondary) !important;
    height: 2px !important;
    top: 50% !important;
    margin-top: -1px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
    transform: rotate(45deg);
    top: 50%;
    margin-top: -1px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
    transform: rotate(-45deg);
    bottom: 50%;
    margin-bottom: -1px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
    background: transparent !important;
}

/* Navigation breadcrumbs */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin: var(--space-lg) 0;
}

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

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

.breadcrumb-item+.breadcrumb-item::before {
    content: '›';
    color: var(--text-muted);
    margin: 0 var(--space-sm);
}

/* Mobile-first responsive design */
@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        margin-top: var(--space-md);
        padding: var(--space-md);
        box-shadow: var(--shadow-lg);
    }

    .nav-link {
        padding: var(--space-md) !important;
        margin: var(--space-xs) 0;
    }

    .dropdown-menu {
        position: static !important;
        float: none !important;
        box-shadow: none !important;
        border: none !important;
        background: var(--bg-secondary) !important;
        margin: var(--space-sm) 0 !important;
        padding-left: var(--space-lg) !important;
    }

    .theme-toggle {
        margin: var(--space-md) 0 0 0;
        width: 100%;
        justify-content: flex-start;
        gap: var(--space-sm);
    }
}