/**
 * MK Montagetechnik GmbH - Filesystem
 * Copyright: webstudopfalz e.K.
 * SevDesk-Style Professional Design
 */

:root {
    /* SevDesk-inspired Professional Color Palette */
    --primary-color: #0066cc;
    --primary-hover: #0052a3;
    --primary-light: #e6f2ff;
    --primary-dark: #004080;
    --secondary-color: #2c3e50;
    --secondary-light: #34495e;
    --accent-color: #27ae60;
    --accent-hover: #229954;
    --warning-color: #f39c12;
    --warning-hover: #e67e22;
    --danger-color: #e74c3c;
    --danger-hover: #c0392b;
    --success-color: #27ae60;
    --success-light: #d5f4e6;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-tertiary: #95a5a6;
    --text-white: #ffffff;
    --surface-primary: #ffffff;
    --surface-secondary: #f8f9fa;
    --surface-tertiary: #ecf0f1;
    --surface-dark: #2c3e50;
    --border-color: #dee2e6;
    --border-hover: #ced4da;
    --border-light: #e9ecef;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 40px rgba(0,0,0,0.16);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background: var(--surface-secondary);
    line-height: 1.6;
    font-size: 14px;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Navigation - SevDesk Style */
.navbar {
    background: var(--surface-primary);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-weight: 600;
    font-size: 18px;
    color: var(--primary-color) !important;
    padding: 16px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-brand .brand-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
    font-weight: bold;
}

.navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 16px 20px !important;
    transition: var(--transition);
    border-radius: var(--radius-md);
    margin: 0 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    background: var(--primary-light);
}

.badge {
    font-size: 10px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-warning {
    background: var(--warning-color) !important;
    color: white !important;
}

.dropdown-menu {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: 8px;
    margin-top: 8px;
    background: var(--surface-primary);
}

.dropdown-item {
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 14px;
    transition: var(--transition);
    color: var(--text-primary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
}

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

/* Container */
.container {
    max-width: 1200px;
    padding: 24px;
    margin: 0 auto;
}

/* Main Content */
.main-content {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin: 24px 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.content-inner {
    padding: 32px;
}

/* Typography */
h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

h2, h3, h4, h5 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

/* Professional Icons */
.icon {
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.icon-lg {
    width: 24px;
    height: 24px;
    font-size: 20px;
}

.icon-xl {
    width: 32px;
    height: 32px;
    font-size: 24px;
}

/* Cards */
.card {
    background: var(--surface-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-hover);
}

.card-header {
    background: var(--surface-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 24px;
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-body {
    padding: 24px;
}

.card-footer {
    background: var(--surface-secondary);
    border-top: 1px solid var(--border-color);
    padding: 16px 24px;
}

/* Buttons - SevDesk Style */
.btn {
    font-weight: 500;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    cursor: pointer;
    line-height: 1.4;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--surface-primary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--surface-tertiary);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-success {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.btn-success:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: white;
}

.btn-warning {
    background: var(--warning-color);
    color: white;
    border-color: var(--warning-color);
}

.btn-warning:hover {
    background: var(--warning-hover);
    border-color: var(--warning-hover);
    color: white;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.btn-danger:hover {
    background: var(--danger-hover);
    border-color: var(--danger-hover);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
}

.btn-outline-secondary {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-outline-secondary:hover {
    background: var(--surface-tertiary);
    color: var(--text-primary);
}

.btn-outline-success {
    background: transparent;
    color: var(--success-color);
    border-color: var(--success-color);
}

.btn-outline-success:hover {
    background: var(--success-color);
    color: white;
}

.btn-outline-warning {
    background: transparent;
    color: var(--warning-color);
    border-color: var(--warning-color);
}

.btn-outline-warning:hover {
    background: var(--warning-color);
    color: white;
}

.btn-outline-danger {
    background: transparent;
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.btn-outline-danger:hover {
    background: var(--danger-color);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* Forms */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 14px;
    transition: var(--transition);
    background: var(--surface-primary);
    color: var(--text-primary);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
    outline: none;
}

.form-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Article List - Professional Table Style */
.article-table {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.table {
    margin-bottom: 0;
    font-size: 14px;
}

.table thead th {
    background: var(--surface-secondary);
    border: none;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.table tbody td {
    border-color: var(--border-color);
    padding: 16px 20px;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-light);
}

.table tbody tr:hover {
    background: var(--surface-secondary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Article Item Styling */
.article-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    font-weight: 600;
}

.article-number {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--surface-tertiary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.article-title {
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    font-size: 15px;
}

.article-description {
    color: var(--text-secondary);
    font-size: 13px;
    margin: 4px 0 0 0;
    line-height: 1.4;
}

/* Search */
.search-container {
    margin-bottom: 24px;
}

.search-box {
    position: relative;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: var(--surface-primary);
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
    outline: none;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 16px;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.alert-success {
    background: var(--success-light);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: #fdf2f2;
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background: #fffbf0;
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: var(--primary-light);
    color: var(--primary-color);
    border-left: 4px solid var(--primary-color);
}

/* Badges */
.badge-primary {
    background: var(--primary-color);
    color: white;
}

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

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

/* Stats */
.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--surface-secondary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Upload Areas */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px 32px;
    text-align: center;
    background: var(--surface-secondary);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.upload-area h5 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.upload-area p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* File Preview */
.file-list-container {
    max-height: 400px;
    overflow-y: auto;
    border-radius: var(--radius-md);
}

.file-list {
    padding: 0;
}

.file-item {
    background: var(--surface-primary);
    border: 1px solid var(--border-color) !important;
    transition: var(--transition);
    margin-bottom: 8px;
}

.file-item:hover {
    border-color: var(--primary-color) !important;
    box-shadow: var(--shadow-sm);
}

.file-item:last-child {
    margin-bottom: 0;
}

.file-actions .btn {
    padding: 4px 8px;
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Upload Progress */
.upload-progress {
    margin-top: 16px;
}

.progress {
    height: 8px;
    border-radius: var(--radius-sm);
    background: var(--surface-tertiary);
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-sm);
    transition: width 0.3s ease;
}

/* File Type Icons */
.fa-file-pdf { color: #dc3545; }
.fa-file-word { color: #2b579a; }
.fa-file-excel { color: #217346; }
.fa-image { color: var(--primary-color); }
}

/* Copy URL */
.copy-url {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    background: var(--surface-tertiary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    word-break: break-all;
    border: 1px solid var(--border-color);
}

/* Login */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.login-header {
    background: var(--surface-secondary);
    padding: 32px 32px 24px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.login-body {
    padding: 32px;
}

/* Breadcrumb */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 20px;
    font-size: 14px;
}

.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--primary-color);
}

.breadcrumb-item.active {
    color: var(--text-primary);
}

/* Footer */
footer {
    background: var(--surface-primary);
    border-top: 1px solid var(--border-color);
    margin-top: 48px;
}

footer .container {
    padding: 32px 24px;
}

footer h5 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 16px;
}

footer p {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 14px;
}

footer small {
    color: var(--text-tertiary);
    font-size: 12px;
}

/* User Management Styles */
.user-table {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

.role-badge {
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-admin {
    background: var(--warning-color);
    color: white;
}

.role-editor {
    background: var(--success-color);
    color: white;
}

.role-user {
    background: var(--text-secondary);
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }
    
    .content-inner {
        padding: 20px;
    }
    
    .card-body {
        padding: 20px;
    }
    
    .card-header {
        padding: 16px 20px;
    }
    
    h1 {
        font-size: 24px;
    }
    
    .search-input {
        padding: 10px 14px 10px 40px;
    }
    
    .search-icon {
        left: 14px;
    }
    
    .table-responsive {
        border-radius: var(--radius-lg);
    }
}

/* Utility Classes */
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-tertiary { color: var(--text-tertiary) !important; }
.bg-surface-secondary { background: var(--surface-secondary) !important; }
.border-radius-lg { border-radius: var(--radius-lg) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Focus States */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 60px 40px;
    color: var(--text-tertiary);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h4 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 24px;
}

/* Page Layout */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-wrapper {
    flex: 1;
}

/* Professional Icon System */
.fas, .far, .fab {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Pro", "Font Awesome 6 Brands";
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Pagination Styling */
.pagination {
    margin: 0;
}

.pagination .page-link {
    color: var(--text-primary);
    background: var(--surface-primary);
    border: 1px solid var(--border-color);
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    border-radius: var(--radius-md);
    margin: 0 2px;
}

.pagination .page-link:hover {
    color: var(--primary-color);
    background: var(--primary-light);
    border-color: var(--primary-color);
    text-decoration: none;
}

.pagination .page-item.active .page-link {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.pagination .page-item.disabled .page-link {
    color: var(--text-tertiary);
    background: var(--surface-tertiary);
    border-color: var(--border-light);
    cursor: not-allowed;
}

.pagination .page-item:first-child .page-link,
.pagination .page-item:last-child .page-link {
    font-weight: 600;
}

/* Pagination Info */
.pagination-info {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

/* Timeline Styling */
.timeline {
    position: relative;
    padding-left: 0;
}

.timeline-item {
    display: flex;
    margin-bottom: 20px;
    position: relative;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 15px;
    top: 32px;
    bottom: -20px;
    width: 2px;
    background: var(--border-color);
}

.timeline-marker {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--surface-primary);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.timeline-content {
    flex: 1;
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    border: 1px solid var(--border-color);
}

.timeline-header {
    font-size: 14px;
    margin-bottom: 4px;
}

.timeline-meta {
    margin-bottom: 8px;
}

.timeline-details {
    background: var(--surface-primary);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    border: 1px solid var(--border-light);
}

/* History Icons */
.timeline-marker .fa-plus { color: var(--success-color); }
.timeline-marker .fa-edit { color: var(--warning-color); }
.timeline-marker .fa-trash { color: var(--danger-color); }
.timeline-marker .fa-upload { color: var(--primary-color); }