:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --white: #ffffff;
    --body-bg: var(--white);
    --body-color: var(--dark-color);
    --border-color: #dee2e6;
    --border-radius: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --transition: all 0.2s ease-in-out;
    --sidebar-width: 250px;
    --navbar-height: 60px;
    --sidebar-bg: #f8f9fa;
    --sidebar-hover: #e9ecef;
}

/* Grundlegendes Styling */
body {
    background-color: #f8f9fa;
    color: var(--body-color);
    font-family: 'Roboto', sans-serif;
    line-height: 1.5;
}

/* Navigation */
.navbar {
    background-color: var(--white) !important;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 0.5rem 1rem;
    height: var(--navbar-height);
    z-index: 1030;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--dark-color);
}

.navbar-light .navbar-nav .nav-link {
    color: var(--dark-color);
}

.navbar-light .navbar-nav .nav-link:hover,
.navbar-light .navbar-nav .nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* Karten */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    background-color: var(--white);
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem;
}

/* Tabellen */
.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    color: var(--secondary-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.table td {
    vertical-align: middle;
}

/* Formulare */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    transform: translateY(-1px);
}

/* Badges */
.badge {
    padding: 0.5rem 0.75rem;
    font-weight: 500;
    border-radius: 2rem;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
}

/* Modal */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
}

/* Dashboard Widgets */
.stat-card {
    padding: 1.5rem;
    border-radius: var(--border-radius);
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    margin-bottom: 1.5rem;
}

.stat-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--secondary-color);
    margin-bottom: 0;
}

/* Datei-Upload */
.file-upload {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.file-upload:hover {
    border-color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem 0;
    }
    
    .btn {
        padding: 0.5rem 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-card h3 {
        font-size: 1.5rem;
    }
    
    .container-fluid {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
}

/* Animationen */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

/* Utilities */
.cursor-pointer {
    cursor: pointer;
}

.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Status-Indikatoren */
.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 0.5rem;
}

.status-active {
    background-color: var(--success-color);
}

.status-inactive {
    background-color: var(--secondary-color);
}

.status-warning {
    background-color: var(--warning-color);
}

.status-danger {
    background-color: var(--danger-color);
}

/* Layout */
/* .sidebar-toggle {
    padding: 0.5rem;
    color: #6c757d;
}

.sidebar-toggle:hover {
    color: var(--primary-color);
} */

/* Avatar Styles */
.avatar-circle {
    width: 32px;
    height: 32px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

/* Main Content */
.main-content {
    margin-left: 0;
    margin-top: 60px; /* Höhe der Navbar */
    padding: 2rem;
    min-height: calc(100vh - 60px);
}

/* Dropdown Styles */
.dropdown-item {
    padding: 0.5rem 1rem;
}

.dropdown-item i {
    width: 20px;
    text-align: center;
}

.dropdown-item:hover {
    background-color: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
}

.dropdown-item.text-danger:hover {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}