/* Enhanced Professional Sidebar Design */

/* Sidebar Container */
.sidenav {
    background: #ffffff;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    border: none;
    border-right: 1px solid #e9ecef;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.sidenav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.05), transparent);
}

/* Sidebar Header */
.sidenav-header {
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    position: relative;
}

.sidenav-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.1), transparent);
}

.navbar-brand {
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.navbar-brand-img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: transform 0.3s ease;
}

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

/* Navigation Items */
.navbar-nav {
    padding: 1rem 0;
}

.nav-item {
    margin: 0.25rem 0;
    position: relative;
}

/* Main Navigation Links */
.nav-link {
    color: #495057 !important;
    padding: 0.875rem 1.5rem;
    margin: 0 0.75rem;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    font-weight: 500;
    letter-spacing: 0.025em;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(102, 126, 234, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 12px;
}

.nav-link:hover::before {
    opacity: 1;
}

.nav-link:hover {
    color: #667eea !important;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

/* Active Navigation Link */
.nav-link.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: #000000 !important;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transform: translateX(4px);
}
.sidenav .collapse .nav-item .nav-link.active{
    color: #000000 !important;
}
 

.nav-link.active::before {
    opacity: 0;
}

/* Navigation Icons */
.nav-link .material-icons,
.nav-link .fas,
.nav-link .fa {
    font-size: 1.25rem;
    margin-right: 0.75rem;
    opacity: 0.8;
    transition: all 0.3s ease;
    width: 24px;
    text-align: center;
    color: #6c757d;
}

.nav-link:hover .material-icons,
.nav-link:hover .fas,
.nav-link:hover .fa {
    opacity: 1;
    transform: scale(1.1);
    color: #667eea;
}

.nav-link.active .material-icons,
.nav-link.active .fas,
.nav-link.active .fa {
    opacity: 1;
    color: #ffffff;
}

/* Navigation Text */
.nav-link-text {
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

/* Category Headers */
.toggle-bar {
    color: #6c757d !important;
    font-size: 0.75rem !important;
    font-weight: 700 !important;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 1rem 1.5rem 0.5rem !important;
    margin: 0 0.75rem;
    border-bottom: 1px solid #e9ecef;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.toggle-bar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1.5rem;
    right: 1.5rem;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.3), transparent);
    transition: all 0.3s ease;
}

.toggle-bar:hover {
    color: #667eea !important;
}

.toggle-bar:hover::after {
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.6), transparent);
}

/* Submenu */
.submenu {
    background: #f8f9fa;
    border-radius: 8px;
    margin: 0.5rem 0.75rem;
    padding: 0.5rem 0;
    border-left: 3px solid #e9ecef;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.submenu.show {
    border-left-color: rgba(102, 126, 234, 0.6);
    box-shadow: inset 0 0 20px rgba(102, 126, 234, 0.05);
}

/* Submenu Items */
.submenu .nav-item {
    margin: 0.125rem 0;
}

.submenu .nav-link {
    padding: 0.625rem 1rem 0.625rem 2.5rem;
    margin: 0 0.5rem;
    font-size: 0.8125rem;
    border-radius: 8px;
    position: relative;
}

.submenu .nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, #667eea, #764ba2);
    transition: height 0.3s ease;
    border-radius: 0 2px 2px 0;
}

.submenu .nav-link:hover::before,
.submenu .nav-link.active::before {
    height: 60%;
}

.submenu .nav-link.active {
    background: rgba(102, 126, 234, 0.15) !important;
    border-left: 3px solid #667eea;
}

/* Icon Containers */
.icon {
    background: #f8f9fa !important;
    border-radius: 8px !important;
    padding: 0.5rem !important;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.nav-link:hover .icon {
    background: rgba(102, 126, 234, 0.1) !important;
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
}

.nav-link.active .icon {
    background: rgba(255, 255, 255, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.3);
}

/* Scrollbar Styling */
.sidenav::-webkit-scrollbar {
    width: 6px;
}

.sidenav::-webkit-scrollbar-track {
    background: #f8f9fa;
    border-radius: 3px;
}

.sidenav::-webkit-scrollbar-thumb {
    background: #dee2e6;
    border-radius: 3px;
    transition: background 0.3s ease;
}

.sidenav::-webkit-scrollbar-thumb:hover {
    background: #adb5bd;
}

/* Responsive Design */
@media (max-width: 1199.98px) {
    .sidenav {
        transform: translateX(-100%);
    }
    
    .g-sidenav-show .sidenav {
        transform: translateX(0);
    }
}

.nav-item:nth-child(1) { animation-delay: 0.1s; }
.nav-item:nth-child(2) { animation-delay: 0.2s; }
.nav-item:nth-child(3) { animation-delay: 0.3s; }
.nav-item:nth-child(4) { animation-delay: 0.4s; }
.nav-item:nth-child(5) { animation-delay: 0.5s; }
.nav-item:nth-child(6) { animation-delay: 0.6s; }

/* Hover effects for better interactivity */
.nav-link:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.3);
}

/* Loading state */
.nav-link.loading {
    pointer-events: none;
    opacity: 0.7;
}

.nav-link.loading::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translateY(-50%) rotate(0deg); }
    100% { transform: translateY(-50%) rotate(360deg); }
}

/* Light theme consistency */
.sidenav {
    background: #ffffff !important;
}

.nav-link {
    color: #495057 !important;
}

.nav-link:hover {
    color: #667eea !important;
}

/* Ensure consistent light theme */
.sidenav-header {
    background: #f8f9fa !important;
    border-bottom: 1px solid #e9ecef !important;
}

.submenu {
    background: #f8f9fa !important;
    border-left: 3px solid #e9ecef !important;
}

.icon {
    background: #f8f9fa !important;
    border: 1px solid #e9ecef !important;
}

/* Accessibility improvements */
.nav-link:focus-visible {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* High contrast mode - light theme */
@media (prefers-contrast: high) {
    .sidenav {
        background: #ffffff;
        border-right: 2px solid #000000;
    }
    
    .nav-link {
        color: #000000 !important;
        border: 1px solid transparent;
    }
    
    .nav-link:hover,
    .nav-link.active {
        border-color: #000000;
        background: #f8f9fa !important;
    }
}