/* FIBU-APP - SIDEBAR */

#sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--color-sidebar-bg);
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    z-index: var(--z-sticky);
    transition: transform var(--transition-normal);
}


/* LOGO */

.sidebar-logo {
    height: 50px;
    margin-top: 1em;
    display: flex;
    align-items: start;
    justify-content: center;
    margin:1.5em 1.5em .5em 1.5em;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.sidebar-logo img {
    height: 30px;
    width: auto;
}

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    letter-spacing: -0.5px;
}


/* SUCHFELD */

.sidebar-search {
    padding: 0.5em 1em;
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-background);
    margin: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: 1px solid #d3d3d3;
}

.sidebar-search:focus-within {
    background: var(--color-card-bg);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.search-icon {
    color: var(--color-text-muted);
    font-size: 20px;
}

.sidebar-search input {
    flex: 1;
    background: transparent;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

.sidebar-search input::placeholder {
    color: var(--color-text-muted);
}

.search-shortcut {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    padding: 2px 6px;
    background: var(--color-card-bg);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
}

/* Globale Suche - Result Items */
.search-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
    transition: background 0.2s;
}

.search-result-item:hover {
    background: #f8f9fa;
}

.search-result-item:last-child {
    border-bottom: none;
}

/* NAVIGATION */

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-xs);
    position: relative;
    text-decoration: none;
}

.nav-item .material-icons {
    font-size: 20px;
    color: inherit;
}

.nav-item:hover {
    background: var(--color-background);
    color: var(--color-text-primary);
}

.nav-item.active {
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-text-white);
    font-weight: var(--font-weight-semibold);
}

.nav-badge {
    margin-left: auto;
    background: var(--color-accent);
    color: var(--color-text-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    min-width: 20px;
    text-align: center;
}

.nav-item.active .nav-badge {
    background: rgba(255, 255, 255, 0.3);
}

.nav-divider {
    height: 1px;
    background: rgba(0, 0, 0, 0.08);
    margin: var(--spacing-md) 0;
}


/* ============================================
   SIDEBAR SUBMENU
   ============================================ */


/* Container für Dropdown */

.has-submenu {
    display: block;
    width: 100%;
    margin-bottom: var(--spacing-xs);
}


/* Header - wie normaler nav-item */

.nav-item-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
}

.nav-item-header .material-icons {
    font-size: 20px;
    color: inherit;
}

.nav-item-header:hover {
    background: var(--color-background);
    color: var(--color-text-primary);
}


/* Pfeil-Icon */

.submenu-arrow {
    margin-left: auto;
    transition: transform var(--transition-normal);
    font-size: 20px;
}

.has-submenu.open .submenu-arrow {
    transform: rotate(90deg);
}


/* Submenu-Liste - versteckt by default */

.nav-submenu {
    display: none;
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
}

/* ============================================
   APP-SWITCHER
   ============================================ */

.app-switcher {
    padding: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.app-switcher-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.app-switcher-links {
    display: flex;
    gap: var(--spacing-sm);
}

.app-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--color-background);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.app-link:hover {
    background: var(--color-card-bg);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.app-link.active {
    background: white;
    color: var(--color-primary);
}

.app-link .material-icons {
    font-size: 22px;
}


/* Submenu sichtbar wenn open */

.has-submenu.open .nav-submenu {
    display: block;
    animation: slideDownSubmenu 0.2s ease-out;
}

@keyframes slideDownSubmenu {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Submenu List-Items */

.nav-submenu li {
    list-style: none;
    margin: 0;
    padding: 0;
}


/* Submenu nav-items - EINGERÜCKT */

.nav-submenu .nav-item {
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) calc(var(--spacing-md) + 32px);
    margin-bottom: 2px;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    background: transparent;
}

.nav-submenu .nav-item .material-icons {
    font-size: 18px;
    opacity: 0.8;
}

.nav-submenu .nav-item:hover {
    background: var(--color-background);
    color: var(--color-text-primary);
}

.nav-submenu .nav-item.active {
    background: rgba(119, 147, 60, 0.12);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}


/* NOTIFICATIONS */

.sidebar-notifications {
    padding: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.notification-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-warning-light);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-warning);
}

.notification-item .material-icons {
    color: var(--color-warning);
    font-size: 20px;
}

.notification-content {
    flex: 1;
    font-size: var(--font-size-xs);
}

.notification-content strong {
    display: block;
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 2px;
}

.notification-content small {
    color: var(--color-text-secondary);
}


/* USER FOOTER */

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.trial-progress {
    margin-bottom: var(--spacing-md);
}

.trial-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.progress-bar {
    height: 6px;
    background: var(--color-background);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.user-info:hover {
    background: var(--color-background);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


/* SIDEBAR OVERLAY */

#sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-overlay);
    z-index: calc(var(--z-sticky) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

body.sidebar-open #sidebar-overlay {
    opacity: 1;
    visibility: visible;
}


/* ============================================
   ÜBERFÄLLIGE RECHNUNGEN - ZUSÄTZLICHES STYLING
   ============================================ */


/* Anklickbare Benachrichtigung */

.notification-item {
    transition: all 0.2s ease;
}

.notification-item[onclick] {
    cursor: pointer;
}

.notification-item[onclick]:hover {
    background-color: rgba(0, 0, 0, 0.05);
    transform: translateX(2px);
}

.notification-item[onclick]:active {
    transform: translateX(4px);
}


/* Überfällig-Filter Button (spezielles Styling) */

[data-filter-btn="ueberfaellig"].btn-primary {
    background-color: var(--color-error);
    border-color: var(--color-error);
    color: white;
}

[data-filter-btn="ueberfaellig"].btn-outline {
    color: var(--color-error);
    border-color: var(--color-error);
}

[data-filter-btn="ueberfaellig"].btn-outline:hover {
    background-color: var(--color-error);
    color: white;
}


/* Überfällige Zeilen in Tabelle */

tr[style*="background-color: #fff5f5"] {
    border-left: 3px solid var(--color-error);
}


/* Badge für überfällig */

.badge-error {
    background-color: var(--color-error);
    color: white;
}


/* Warning Icon in Tabelle */

td small[style*="color: var(--color-error)"] {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
}


/* Responsive: Filter-Buttons umbrechen */

@media (max-width: 768px) {
    [data-filter-btn] {
        flex: 1;
        min-width: 100px;
    }
    [data-filter-btn="ueberfaellig"] {
        flex: 1 1 100%;
    }
}


/* Spinner für Loading-State */

.spinner {
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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


/* Pulse-Animation für neue Benachrichtigungen */

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.notification-item.new {
    animation: pulse 2s ease-in-out infinite;
}


/* Hover-Effekt für PDF-Button */

.btn-icon[title="PDF öffnen"]:hover {
    color: var(--color-error);
}


/* Status-Badge Colors (falls noch nicht definiert) */

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    background-color: #e0e0e0;
    color: #333;
}

.badge-info {
    background-color: #2196f3;
    color: white;
}

.badge-success {
    background-color: #4caf50;
    color: white;
}

.badge-error {
    background-color: #f44336;
    color: white;
}


/* Zahlungsziel-Spalte */

td small {
    display: block;
    margin-top: 4px;
}

/* ============================================
   USER DROPDOWN MENU
   ============================================ */

.user-info {
    position: relative;
}

.user-dropdown {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--color-card-bg);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: 1000;
}

.user-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.dropdown-item:first-child {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.dropdown-item:last-child {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.dropdown-item .material-icons {
    font-size: 20px;
    color: var(--color-text-muted);
}

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

.dropdown-item:hover .material-icons {
    color: var(--color-primary);
}

.dropdown-divider {
    height: 1px;
    background: rgba(0, 0, 0, 0.08);
    margin: var(--spacing-xs) 0;
}

/* 3-Punkte Button Styling */
#userMenuBtn {
    position: relative;
}

#userMenuBtn.active {
    background: var(--color-background);
    color: var(--color-primary);
}