.sidebar {
    height: 100%;
    background-color: #f8f9fa;
    border-right: 1px solid #dee2e6;
    overflow-y: auto;
    transition: width 0.3s ease, min-width 0.3s ease;
    will-change: width; /* Optimierung für Transitions */
}

.sidebar-expanded {
    width: 280px !important;
    min-width: 280px !important;
}

.sidebar-collapsed {
    width: 70px !important;
    min-width: 70px !important;
    overflow-x: hidden; /* Verhindert horizontales Scrollen */
}

.page-with-sidebar {
    display: flex;
    min-height: calc(100vh - 120px);
}

.page-without-sidebar {
    display: block;
    min-height: calc(100vh - 120px);
}

.main-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.full-content {
    width: 100%;
    padding: 20px;
    overflow-y: auto;
}

/* Accordion anpassen */
.accordion-button {
    padding: 12px 15px;
    font-weight: 500;
    background-color: #f8f9fa;
    color: #343a40;
    border-left: 3px solid transparent;
}

.accordion-button:not(.collapsed) {
    background-color: #e9ecef;
    color: #0d6efd;
    border-left-color: #0d6efd;
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: #0d6efd;
}

.accordion-button::after {
    margin-left: auto;
}

.accordion-item {
    border: none;
    border-bottom: 1px solid #e9ecef;
}

.accordion-item:first-of-type .accordion-button {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

.accordion-item:last-of-type .accordion-button.collapsed {
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

/* Sidebar-Menülinks */
.sidebar-menu-link {
    display: block;
    padding: 10px 15px 10px 35px;
    color: #495057;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
}

.sidebar-menu-link:hover {
    background-color: #e9ecef;
    border-left-color: #adb5bd;
    text-decoration: none;
    color: #0d6efd;
}

.sidebar-menu-link.active {
    background-color: #e9ecef;
    border-left-color: #0d6efd;
    color: #0d6efd;
    font-weight: 500;
}

.sidebar-menu-link.sub-item {
    padding-left: 40px;
}

/* Sidebar Header mit Toggle Button */
.sidebar-header {
    display: flex;
    justify-content: flex-end;
    padding: 10px 5px;
    border-bottom: 1px solid #dee2e6;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: #6c757d;
    padding: 4px 8px;
    cursor: pointer;
    transition: color 0.2s;
}

.sidebar-toggle:hover {
    color: #495057;
}

/* Collapsed State Styles - 2 Ebenen Hierarchie */
.sidebar-collapsed .accordion-button {
    padding: 12px 8px;
    justify-content: center;
    background-color: #e9ecef;
    border-bottom: 1px solid #dee2e6;
    margin-bottom: 2px;
}

.sidebar-collapsed .accordion-button i {
    margin-right: 0 !important;
    font-size: 1.3rem;
    font-weight: 600;
}

.sidebar-collapsed .menu-text {
    display: none;
}

/* Untermenü Container im collapsed State */
.sidebar-collapsed .accordion-body {
    background-color: #f8f9fa;
    padding: 4px 0;
    border-left: 2px solid #0d6efd;
    margin-bottom: 4px;
}

/* Untermenü-Items im collapsed State - kleinere Icons */
.sidebar-collapsed .sidebar-menu-link {
    padding: 6px 8px;
    text-align: center;
    display: flex;
    justify-content: center;
    position: relative;
}

.sidebar-collapsed .sidebar-menu-link i {
    margin-right: 0 !important;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Hover und Active States */
.sidebar-collapsed .sidebar-menu-link:hover {
    background-color: #e9ecef;
}

.sidebar-collapsed .sidebar-menu-link:hover i {
    opacity: 1;
}

.sidebar-collapsed .sidebar-menu-link.active {
    background-color: #dee2e6;
}

.sidebar-collapsed .sidebar-menu-link.active i {
    opacity: 1;
    color: #0d6efd;
    font-weight: 600;
}

/* Visueller Indikator für geöffnete Hauptkategorien */
.sidebar-collapsed .accordion-button:not(.collapsed) {
    background-color: #0d6efd;
    color: white;
    border-left: 3px solid #0056b3;
}

.sidebar-collapsed .accordion-button:not(.collapsed) i {
    color: white;
}

/* Bessere Abgrenzung zwischen Kategorien */
.sidebar-collapsed .accordion-item {
    border: none;
    margin-bottom: 2px;
}

.sidebar-collapsed .accordion-collapse {
    border: none;
}

/* Hide Bootstrap accordion arrow in collapsed state */
.sidebar-collapsed .accordion-button.collapsed::after,
.sidebar-collapsed .accordion-button:not(.collapsed)::after {
    display: none !important;
}

/* CSS Tooltips für collapsed sidebar */
.sidebar-collapsed [title] {
    position: relative;
}

/* Anpassung der Tooltip-Position für die breitere Sidebar */
.sidebar-collapsed .sidebar-menu-link {
    position: relative;
}

.sidebar-collapsed .sidebar-menu-link:hover::after {
    content: attr(title);
    position: absolute;
    left: 75px;
    top: 50%;
    transform: translateY(-50%);
    padding: 5px 10px;
    background-color: #333;
    color: white;
    font-size: 0.875rem;
    white-space: nowrap;
    border-radius: 4px;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Tooltip for accordion buttons */
.sidebar-collapsed .accordion-button {
    position: relative;
    overflow: visible;
}

.sidebar-collapsed .accordion-button:hover span.menu-text {
    display: block;
    position: absolute;
    left: 75px;
    top: 50%;
    transform: translateY(-50%);
    padding: 5px 10px;
    background-color: #333;
    color: white;
    font-size: 0.875rem;
    white-space: nowrap;
    border-radius: 4px;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}