/* Custom sidebar styles */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    overflow-y: auto;
}

.sidebar-header {
    border-bottom: 1px solid #dee2e6;
    padding-bottom: 1rem;
}

.sidebar .nav-link {
    color: #333;
    padding: 0.75rem 1rem;
    border-radius: 0;
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover {
    background-color: #f8f9fa;
    color: #0d6efd;
}

.sidebar .nav-link.active {
    background-color: #0d6efd;
    color: white;
}

.sidebar .nav-link.dropdown-toggle::after {
    display: none;
}

.arrow-icon {
    transition: transform 0.3s ease;
    font-size: 0.8rem;
}

.nav-link[aria-expanded="true"] .arrow-icon {
    transform: rotate(90deg);
}

.toggle-icon {
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.nav-link[aria-expanded="true"] .toggle-icon {
    transform: rotate(45deg);
}

/* Deep nested navigation styling */
.sidebar .nav .nav {
    border-left: 2px solid #e9ecef;
}

.sidebar .nav .nav .nav {
    border-left: 2px solid #dee2e6;
}

.sidebar .nav .nav .nav .nav {
    border-left: 2px solid #ced4da;
}

.sidebar .nav .nav .nav .nav .nav {
    border-left: 2px solid #adb5bd;
}

/* Toggle all button */
#toggleAll {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

#toggleAll i {
    transition: transform 0.3s ease;
}

#toggleAll.expanded i {
    transform: rotate(45deg);
}

/* Responsive */
@media (max-width: 767.98px) {
    .sidebar {
        position: static;
        height: auto;
    }
    
    main {
        margin-left: 0 !important;
    }
}

@media (min-width: 768px) {
    main {
        margin-left: 16.66667%;
    }
}

@media (min-width: 992px) {
    main {
        margin-left: 16.66667%;
    }
}

/* Smooth transitions */
.collapse {
    transition: all 0.3s ease;
}

/* Active state improvements */
.nav-link.active .toggle-icon,
.nav-link.active .arrow-icon {
    color: white;
}

/* Hover effects */
.nav-link:hover .toggle-icon,
.nav-link:hover .arrow-icon {
    color: #0d6efd;
}

/* Deep level indentation */
.nav .nav .nav .nav {
    padding-left: 0.5rem;
}

.nav .nav .nav .nav .nav {
    padding-left: 0.75rem;
}