:root {
            --bg-primary: #050510;
            --bg-secondary: #0f101a;
            --bg-card: #1a1a24;
            --border: #2a2e45;
            --text-primary: #e4e6ef;
            --text-secondary: #8b8fa3;
            --text-muted: #606070;
            --accent-primary: #00f3ff;
            --accent-secondary: #bd00ff;
            --success: #00ff9d;
            --warning: #f59e0b;
            --danger: #ff3366;
            --mobile-bottom-nav-height: 82px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            min-height: 100vh;
            font-size: 16px;
            line-height: 1.5;
            overflow-x: hidden;
        }

        /* Layout */
        .app-container {
            display: block;
            min-height: 100vh;
            position: relative;
        }

        /* Sidebar */
        .sidebar {
            width: 260px;
            background: var(--bg-secondary);
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            position: fixed;
            height: 100vh;
            z-index: 100;
        }

        .sidebar-header {
            padding: 24px;
            border-bottom: 1px solid var(--border);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-primary), var(--text-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .sidebar-logo-icon {
            font-size: 2rem;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            overflow-y: auto;
        }

        .nav-section {
            margin-bottom: 24px;
        }

        .nav-section-title {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-muted);
            padding: 8px 12px;
            font-weight: 600;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            min-height: 48px;
            border-radius: 10px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.2s;
            font-weight: 500;
            font-size: 0.9rem;
        }

        .nav-item:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
        }

        .nav-item.active {
            background: var(--accent-primary);
            color: var(--bg-primary);
            font-weight: 700;
        }

        .nav-item-icon {
            font-size: 1.1rem;
            width: 24px;
            text-align: center;
        }

        .nav-item-badge {
            margin-left: auto;
            background: var(--accent-secondary);
            color: white;
            font-size: 0.7rem;
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: 600;
        }

        /* User panel in sidebar */
        .sidebar-user {
            padding: 16px 20px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-language {
            padding: 12px 20px 0 20px;
            border-top: 1px solid var(--border);
        }

        .sidebar-language-label {
            display: block;
            margin-bottom: 6px;
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.8px;
        }

        .sidebar-language-select {
            width: 100%;
            background: var(--bg-card);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 10px;
            font-size: 0.85rem;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .user-info {
            flex: 1;
        }

        .user-name {
            font-weight: 600;
            font-size: 0.9rem;
        }

        .user-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .user-logout {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 1.2rem;
            padding: 8px;
            border-radius: 8px;
            transition: all 0.2s;
        }

        .user-logout:hover {
            background: rgba(239, 68, 68, 0.1);
            color: var(--danger);
        }

        /* Main content */
        .main-content {
            flex: 1;
            margin-left: 260px;
            padding: 32px;
            min-height: 100vh;
        }

        .page-header {
            margin-bottom: 32px;
        }

        .page-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .page-subtitle {
            color: var(--text-muted);
        }

        /* Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 32px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px;
            transition: all 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
        }

        .stat-icon {
            font-size: 2rem;
            margin-bottom: 12px;
        }

        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 4px;
        }

        .stat-label {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Cards */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 24px;
        }

        .card-header {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .card-title {
            font-weight: 700;
            font-size: 1.1rem;
        }

        .card-body {
            padding: 24px;
        }

        /* Table */
        .data-table {
            width: 100%;
            border-collapse: collapse;
        }

        .data-table th {
            text-align: left;
            padding: 12px 16px;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border);
        }

        .data-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border);
        }

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

        .data-table tr:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        /* Buttons */
        .btn {
            padding: 10px 20px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.9rem;
            min-height: 48px;
            cursor: pointer;
            transition: all 0.2s;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: var(--bg-primary);
            font-weight: 700;
            box-shadow: 0 0 10px rgba(189, 0, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
        }

        .btn-secondary {
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: 1px solid var(--border);
        }

        .btn-danger {
            background: rgba(239, 68, 68, 0.1);
            color: var(--danger);
            border: 1px solid var(--danger);
        }

        .btn:disabled {
            opacity: 0.45;
            cursor: not-allowed;
            transform: none !important;
            box-shadow: none !important;
        }

        .btn-xs {
            padding: 6px 10px;
            border-radius: 8px;
            font-size: 0.78rem;
            gap: 6px;
            min-height: 36px;
        }

        .quick-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .quick-actions .btn {
            white-space: nowrap;
        }

        .quick-actions-hint {
            margin-top: 6px;
            font-size: 0.74rem;
            color: var(--text-muted);
        }

        .mobile-bottom-nav {
            display: none;
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1100;
            padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
            background: rgba(5, 5, 16, 0.96);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(20px);
            box-shadow: 0 -12px 30px rgba(0, 0, 0, 0.35);
            gap: 8px;
        }

        .mobile-nav-item {
            flex: 1 1 0;
            min-width: 0;
            min-height: 56px;
            border: 1px solid transparent;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            font: inherit;
            cursor: pointer;
            transition: all 0.2s ease;
            padding: 8px 6px;
        }

        .mobile-nav-item.active {
            background: rgba(0, 243, 255, 0.12);
            border-color: rgba(0, 243, 255, 0.45);
            color: var(--text-primary);
        }

        .mobile-nav-icon {
            font-size: 1.1rem;
            line-height: 1;
        }

        .mobile-nav-label {
            font-size: 0.72rem;
            font-weight: 700;
            line-height: 1.1;
            text-align: center;
        }

        /* Status badges */
        .badge {
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .badge-success {
            background: rgba(34, 197, 94, 0.1);
            color: var(--success);
        }

        .badge-warning {
            background: rgba(245, 158, 11, 0.1);
            color: var(--warning);
        }

        .badge-danger {
            background: rgba(239, 68, 68, 0.1);
            color: var(--danger);
        }

        .badge-info {
            background: rgba(99, 102, 241, 0.1);
            color: var(--accent-primary);
        }

        /* Login overlay */
        #login-overlay {
            position: fixed;
            inset: 0;
            background: var(--bg-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
        }

        .login-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 48px;
            width: 100%;
            max-width: 420px;
            text-align: center;
        }

        .login-icon {
            font-size: 4rem;
            margin-bottom: 24px;
        }

        .login-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 8px;
            background: linear-gradient(135deg, var(--accent-primary), var(--text-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .login-subtitle {
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        .login-input {
            width: 100%;
            padding: 16px 20px;
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 12px;
            color: white;
            font-size: 1rem;
            margin-bottom: 16px;
        }

        .login-input:focus {
            outline: none;
            border-color: var(--accent-primary);
        }

        .login-btn {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border: none;
            border-radius: 12px;
            color: var(--bg-primary);
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
        }

        .login-note {
            margin-top: 24px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .login-link {
            color: var(--accent-primary);
            cursor: pointer;
        }

        /* Page sections (hidden by default) */
        .page-section {
            display: none;
        }

        .page-section.active {
            display: block;
        }

        /* Quick Control Cards */
        .quick-control-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            margin-bottom: 24px;
        }

        .quick-control-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 20px;
            transition: all 0.3s;
        }

        .quick-control-card:hover {
            border-color: var(--accent-primary);
        }

        .qc-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }

        .qc-display-name {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .qc-display-id {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .qc-actions {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .qc-action-btn {
            display: flex;
            align-items: center;
            gap: 12px;
            width: 100%;
            min-height: 52px;
            padding: 14px 18px;
            border-radius: 14px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.2s;
            text-align: left;
        }

        .qc-action-btn:disabled {
            opacity: 0.4;
            cursor: not-allowed;
            transform: none !important;
        }

        .qc-action-btn:not(:disabled):active {
            transform: scale(0.97);
        }

        .qc-action-btn .qc-icon {
            font-size: 1.3rem;
            width: 28px;
            text-align: center;
            flex-shrink: 0;
        }

        .qc-action-btn .qc-label {
            flex: 1;
        }

        .qc-action-btn .qc-hint {
            font-size: 0.72rem;
            font-weight: 400;
            opacity: 0.7;
            margin-top: 2px;
        }

        .qc-btn-display-url {
            background: linear-gradient(135deg, rgba(0, 243, 255, 0.15), rgba(0, 243, 255, 0.05));
            color: var(--accent-primary);
            border: 1px solid rgba(0, 243, 255, 0.3);
        }

        .qc-btn-display-url:not(:disabled):hover {
            background: linear-gradient(135deg, rgba(0, 243, 255, 0.25), rgba(0, 243, 255, 0.1));
            box-shadow: 0 4px 20px rgba(0, 243, 255, 0.15);
        }

        .qc-btn-agent {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(96, 165, 250, 0.05));
            color: #60a5fa;
            border: 1px solid rgba(96, 165, 250, 0.3);
        }

        .qc-btn-agent:not(:disabled):hover {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.25), rgba(96, 165, 250, 0.1));
            box-shadow: 0 4px 20px rgba(96, 165, 250, 0.15);
        }

        .qc-btn-pin {
            background: linear-gradient(135deg, rgba(0, 255, 157, 0.15), rgba(0, 255, 157, 0.05));
            color: var(--success);
            border: 1px solid rgba(0, 255, 157, 0.3);
        }

        .qc-btn-pin:not(:disabled):hover {
            background: linear-gradient(135deg, rgba(0, 255, 157, 0.25), rgba(0, 255, 157, 0.1));
            box-shadow: 0 4px 20px rgba(0, 255, 157, 0.15);
        }

        .qc-card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .qc-details-link {
            font-size: 0.82rem;
            color: var(--text-muted);
            cursor: pointer;
            transition: color 0.2s;
            background: none;
            border: none;
            padding: 6px 0;
        }

        .qc-details-link:hover {
            color: var(--accent-primary);
        }

        .qc-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
        }

        .qc-empty-icon {
            font-size: 3rem;
            margin-bottom: 12px;
            opacity: 0.5;
        }

        .qc-section-toggle {
            width: 100%;
            margin-top: 8px;
        }

        .qc-section-toggle summary {
            cursor: pointer;
            padding: 12px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 12px;
            color: var(--text-muted);
            font-size: 0.85rem;
            font-weight: 500;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .qc-section-toggle summary::-webkit-details-marker {
            display: none;
        }

        .qc-section-toggle summary::before {
            content: '▸';
            transition: transform 0.2s;
        }

        .qc-section-toggle[open] summary::before {
            transform: rotate(90deg);
        }

        .qc-section-toggle .qc-section-content {
            margin-top: 16px;
        }

        @media (min-width: 769px) {
            .quick-control-grid {
                grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            }

            .qc-section-toggle {
                display: none;
            }

            #dashboard-stats-desktop {
                display: block !important;
            }

            #dashboard-activity-desktop {
                display: block !important;
            }
        }

        /* Empty state */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }

        .empty-icon {
            font-size: 4rem;
            margin-bottom: 16px;
            opacity: 0.5;
        }

        /* Toast */
        .toast-container {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 9999;
        }

        .toast {
            background: var(--bg-card);
            border: 1px solid var(--border);
            padding: 16px 24px;
            border-radius: 12px;
            margin-top: 8px;
            animation: slideIn 0.3s ease;
        }

        @keyframes slideIn {
            from {
                transform: translateX(100%);
                opacity: 0;
            }

            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        /* Responsive Optimierungen */
        @media (max-width: 768px) {
            .app-container {
                display: block;
                overflow-x: hidden;
                width: 100%;
                padding-bottom: calc(var(--mobile-bottom-nav-height) + env(safe-area-inset-bottom, 0px));
            }

            .sidebar {
                width: 100%;
                height: auto;
                position: sticky;
                top: 0;
                z-index: 1000;
                border: none;
                border-bottom: 1px solid var(--border);
                background: rgba(13, 17, 23, 0.98);
                backdrop-filter: blur(20px);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
                padding: 0;
            }

            .sidebar-header {
                padding: 10px 16px;
                display: flex;
                justify-content: space-between;
                align-items: center;
                border-bottom: 1px solid var(--border);
            }

            .sidebar-logo {
                font-size: 1.1rem;
            }

            .sidebar-nav {
                display: flex;
                flex-direction: row;
                overflow-x: auto;
                padding: 8px 12px 10px;
                gap: 8px;
                scrollbar-width: none;
            }

            .sidebar-nav::-webkit-scrollbar {
                display: none;
            }

            .nav-section {
                display: flex;
                gap: 8px;
                margin: 0;
            }

            .nav-section-title {
                display: none;
            }

            /* Hide secondary nav items on mobile, show only essential ones */
            .nav-item {
                padding: 0 14px;
                font-size: 0.82rem;
                min-height: 48px;
                border-radius: 12px;
                background: transparent;
                margin: 0 !important;
                display: flex !important;
                align-items: center;
                gap: 6px;
                border: 1px solid transparent;
                white-space: nowrap;
            }

            .nav-item.mobile-hidden {
                display: none !important;
            }

            .nav-item.active {
                background: rgba(255, 255, 255, 0.1) !important;
                border-color: var(--accent-primary);
                color: var(--accent-primary) !important;
            }

            .nav-item-icon {
                font-size: 1rem;
            }

            .nav-item-badge {
                position: static;
                margin-left: 2px;
                padding: 0 4px;
                font-size: 0.6rem;
            }

            .sidebar-user,
            .sidebar-language {
                display: none;
            }

            .main-content {
                padding: 20px 16px 24px;
                width: 100%;
                margin: 0;
                min-height: auto;
            }

            .page-header {
                margin-bottom: 16px;
                padding-bottom: 16px;
                display: block !important;
            }

            .page-header>div:first-child {
                margin-bottom: 12px;
            }

            .page-header>button {
                width: 100%;
                justify-content: center;
                font-size: 0.85rem;
                min-height: 48px;
                padding: 12px 16px;
            }

            .page-title {
                font-size: 1.4rem;
            }

            .page-subtitle {
                font-size: 0.8rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
                margin-bottom: 16px;
            }

            .stat-card {
                padding: 14px;
                border-radius: 12px;
            }

            .stat-value {
                font-size: 1.25rem;
            }

            .stat-label {
                font-size: 0.65rem;
            }

            /* Hide stats/activity on mobile dashboard, shown via collapsible */
            #dashboard-stats-desktop,
            #dashboard-activity-desktop {
                display: none !important;
            }

            /* Display Cards Refinement */
            .data-table thead {
                display: none;
            }

            .data-table,
            .data-table tbody,
            .data-table tr,
            .data-table td {
                display: block;
                width: 100%;
            }

            .data-table tr {
                background: var(--bg-card);
                border: 1px solid var(--border);
                border-radius: 16px;
                padding: 16px;
                margin-bottom: 12px;
            }

            .data-table td {
                padding: 4px 0;
                display: flex;
                justify-content: flex-start;
                align-items: flex-start;
                flex-wrap: wrap;
                gap: 6px 8px;
            }

            .data-table td:first-child {
                display: block;
                border-bottom: 1px solid var(--border);
                margin-bottom: 8px;
                padding-bottom: 8px;
            }

            .data-table td::before {
                content: attr(data-label) ":";
                font-weight: 500;
                text-transform: uppercase;
                font-size: 0.65rem;
                color: var(--text-muted);
                width: 80px;
                flex-shrink: 0;
            }

            .data-table tr td:first-child::before,
            .data-table tr td:last-child::before {
                display: none;
            }

            .data-table td:last-child {
                display: block;
                padding-top: 12px;
                border-top: 1px solid var(--border);
            }

            .quick-actions {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .quick-actions .btn {
                padding: 12px 8px;
                font-size: 0.82rem;
                min-height: 48px;
                justify-content: center;
            }

            .quick-actions .btn:last-child {
                grid-column: span 2;
                background: var(--bg-secondary);
                border: 1px solid var(--border);
            }

            .card-header {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }

            .card-body {
                padding: 20px 16px;
            }

            .card-header .quick-actions {
                width: 100%;
            }

            .mobile-bottom-nav {
                display: flex;
            }

            .toast-container {
                left: 16px;
                right: 16px;
                bottom: calc(var(--mobile-bottom-nav-height) + 12px + env(safe-area-inset-bottom, 0px));
            }

            .toast {
                margin-top: 0;
            }
        }

        /* ===== Modal System ===== */
        .modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.8);
            align-items: center;
            justify-content: center;
            z-index: 2000;
        }

        .modal-overlay--confirm {
            z-index: 2100;
            background: rgba(0, 0, 0, 0.82);
        }

        .modal-panel {
            background: var(--bg-card);
            padding: 32px;
            border-radius: 24px;
            max-width: 600px;
            width: 90%;
            position: relative;
            border: 1px solid var(--border);
            max-height: 90vh;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
        }

        .modal-panel--sm {
            max-width: 520px;
            padding: 28px;
            border-radius: 20px;
        }

        .modal-panel--wide {
            max-width: 800px;
        }

        /* ─── HTML Editor Modal ─── */
        .he-container {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .he-hint {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            border: 1px solid var(--border);
        }

        .he-hint--status {
            display: none;
            color: var(--text-primary);
            background: rgba(74, 108, 247, 0.08);
            border-color: rgba(74, 108, 247, 0.22);
        }

        .he-hint--status.is-visible {
            display: block;
        }

        .he-toolbar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 8px;
        }

        .he-tool-btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 10px 6px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 10px;
            color: var(--text-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            font-size: 0.8rem;
        }

        .he-tool-btn:hover:not(:disabled) {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            transform: translateY(-1px);
        }

        .he-tool-btn:disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

        .he-tool-icon {
            font-size: 1.3rem;
            line-height: 1;
        }

        .he-tool-label {
            font-size: 0.72rem;
            color: var(--text-muted);
            text-align: center;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
        }

        .he-editor-wrap {
            width: 100%;
        }

        .he-textarea {
            width: 100%;
            min-height: 350px;
            resize: vertical;
            background: #0d1117;
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 16px;
            color: #c9d1d9;
            font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
            font-size: 0.82rem;
            line-height: 1.55;
            white-space: pre;
            tab-size: 2;
            box-sizing: border-box;
        }

        .he-textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(0, 255, 200, 0.15);
        }

        .he-textarea::placeholder {
            color: #484f58;
        }

        .he-file-drop {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 18px;
            border: 2px dashed var(--border);
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.2s ease;
            background: transparent;
        }

        .he-file-drop:hover,
        .he-file-drop.he-file-drag-over {
            border-color: var(--accent);
            background: rgba(0, 255, 200, 0.04);
        }

        .he-file-input {
            display: none;
        }

        .he-file-icon {
            font-size: 1.4rem;
        }

        .he-file-text {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .he-upload-hint {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            opacity: 0.7;
        }

        .he-actions {
            padding-top: 4px;
        }

        .he-send-btn {
            width: 100%;
            padding: 14px 20px !important;
            font-size: 1rem !important;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .modal-close {
            position: absolute;
            top: 20px;
            right: 20px;
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background 0.2s;
            line-height: 1;
        }

        .modal-close:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
        }

        .modal-title {
            margin-bottom: 8px;
            font-size: 1.5rem;
            font-weight: 700;
        }

        .modal-status-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
        }

        .modal-subtitle {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* --- Modal Sections --- */
        .modal-section {
            background: var(--bg-secondary);
            padding: 24px;
            border-radius: 16px;
            margin-bottom: 24px;
        }

        .modal-section--accent-blue {
            border: 1px solid rgba(59, 130, 246, 0.35);
        }

        .modal-section--accent-primary {
            border: 1px solid var(--accent-primary);
        }

        .modal-section--danger {
            background: rgba(239, 68, 68, 0.05);
            border: 1px solid rgba(239, 68, 68, 0.2);
        }

        .modal-section-title {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-muted);
            margin-bottom: 16px;
            font-weight: 600;
        }

        .modal-section-title--blue {
            color: #60a5fa;
        }

        .modal-section-title--primary {
            color: var(--accent-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .modal-section-title--danger {
            color: #ef4444;
        }

        .modal-section-hint {
            font-size: 0.7rem;
            color: var(--text-muted);
            font-weight: normal;
            text-transform: none;
        }

        /* --- Collapsible Details (Progressive Disclosure) --- */
        .modal-details {
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 24px;
            overflow: hidden;
            transition: border-color 0.2s;
        }

        .modal-details:hover {
            border-color: rgba(255, 255, 255, 0.15);
        }

        .modal-details > summary {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 16px 24px;
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.5px;
            list-style: none;
            user-select: none;
            transition: color 0.2s, background 0.2s;
        }

        .modal-details > summary::-webkit-details-marker {
            display: none;
        }

        .modal-details > summary::after {
            content: "▸";
            margin-left: auto;
            font-size: 0.9rem;
            transition: transform 0.2s;
            color: var(--text-muted);
        }

        .modal-details[open] > summary::after {
            transform: rotate(90deg);
        }

        .modal-details > summary:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.03);
        }

        .modal-details[open] > summary {
            color: var(--text-primary);
            border-bottom: 1px solid var(--border);
        }

        .modal-details > .modal-section {
            margin-bottom: 0;
            border-radius: 0;
        }

        .modal-details--danger {
            border-color: rgba(239, 68, 68, 0.2);
        }

        .modal-details--danger > summary {
            color: rgba(239, 68, 68, 0.7);
        }

        .modal-details--danger > summary:hover {
            color: #ef4444;
            background: rgba(239, 68, 68, 0.05);
        }

        .modal-details--danger[open] > summary {
            color: #ef4444;
            border-bottom-color: rgba(239, 68, 68, 0.2);
        }

        /* --- Info Grid (Device Info) --- */
        .modal-info-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            font-size: 0.9rem;
        }

        .modal-info-grid--single {
            grid-template-columns: 1fr;
        }

        .modal-info-label {
            color: var(--text-muted);
            font-size: 0.7rem;
            margin-bottom: 4px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .modal-info-value {
            font-weight: 600;
        }

        .modal-info-value--mono {
            font-family: monospace;
            background: rgba(0, 0, 0, 0.2);
            padding: 8px;
            border-radius: 6px;
            word-break: break-all;
        }

        .modal-info-value--accent {
            font-family: monospace;
            color: var(--accent-primary);
        }

        .modal-info-value--success {
            color: var(--success);
        }

        .modal-info-separator {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }

        .modal-info-ua {
            font-size: 0.8rem;
            color: var(--text-secondary);
            word-break: break-all;
            font-family: monospace;
            line-height: 1.4;
        }

        /* --- Flex Row (buttons, controls) --- */
        .modal-flex-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .modal-flex-row--tight {
            gap: 8px;
        }

        .modal-flex-row>.btn {
            flex: 1;
        }

        .modal-flex-end {
            display: flex;
            justify-content: flex-end;
            gap: 12px;
        }

        /* --- URL Input Row --- */
        .url-row {
            display: flex;
            gap: 8px;
            margin-bottom: 8px;
        }

        .url-input {
            flex: 1;
            background: var(--bg-card);
            border: 1px solid var(--border);
            padding: 10px 12px;
            border-radius: 8px;
            color: var(--text-secondary);
            font-family: monospace;
            font-size: 0.8rem;
            min-width: 0;
        }

        .url-input--success {
            color: var(--success);
        }

        .url-btn {
            padding: 10px 14px;
            font-size: 0.8rem;
            white-space: nowrap;
        }

        .url-action-subtle {
            padding: 4px 8px;
            font-size: 0.7rem;
            color: var(--text-muted);
            background: transparent;
            border: none;
            cursor: pointer;
            transition: color 0.2s;
        }

        .url-action-subtle:hover {
            color: var(--text-secondary);
        }

        /* --- Connection Method Cards --- */
        .method-card {
            background: var(--bg-primary);
            padding: 16px;
            border-radius: 12px;
        }

        .method-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 8px;
            gap: 8px;
        }

        .method-title {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 0.9rem;
        }

        .method-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        /* --- Settings Form --- */
        .form-grid {
            display: grid;
            gap: 16px;
            max-width: 400px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .form-hint {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 8px;
            line-height: 1.4;
        }

        .form-status {
            font-size: 0.8rem;
            margin-top: 8px;
            color: var(--text-muted);
        }

        /* --- Login Federated Hint --- */
        .federated-hint {
            display: none;
            margin-bottom: 18px;
            padding: 14px;
            border: 1px solid var(--accent-primary);
            border-radius: 10px;
            background: rgba(99, 102, 241, 0.1);
            text-align: left;
        }

        .federated-hint-title {
            font-weight: 700;
            margin-bottom: 6px;
        }

        .federated-hint-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.45;
        }

        .federated-hint-actions {
            margin-top: 12px;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* --- Default Content Actions --- */
        .default-content-actions {
            display: flex;
            gap: 10px;
            margin-top: 12px;
            flex-wrap: wrap;
        }

        .default-updated {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        /* --- Confirm Modal --- */
        .confirm-title {
            font-size: 1.2rem;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .confirm-body {
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .confirm-warning {
            color: var(--warning);
            font-size: 0.85rem;
            line-height: 1.45;
            margin-bottom: 18px;
        }

        /* --- Idle / Config --- */
        .config-select {
            width: 100%;
            padding: 12px;
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: white;
            font-size: 0.9rem;
        }

        .config-checkbox-row {
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.02);
        }

        .config-checkbox-label {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            cursor: pointer;
        }

        /* --- Danger Zone Buttons --- */
        .btn-danger-outline {
            flex: 1;
            border-color: #ef4444;
            color: #ef4444;
        }

        /* ===== Mobile Modal Responsive ===== */
        @media (max-width: 768px) {
            .modal-overlay {
                align-items: flex-end;
            }

            .modal-panel {
                width: 100%;
                max-width: 100%;
                border-radius: 20px 20px 0 0;
                max-height: 88vh;
                padding: 24px 20px;
            }

            .modal-panel--sm {
                border-radius: 20px 20px 0 0;
                padding: 24px 20px;
            }

            .modal-title {
                font-size: 1.25rem;
                padding-right: 40px;
            }

            .modal-close {
                top: 16px;
                right: 16px;
            }

            .modal-section {
                padding: 16px;
                border-radius: 12px;
                margin-bottom: 16px;
            }

            .modal-details {
                margin-bottom: 16px;
                border-radius: 12px;
            }

            .modal-details > summary {
                padding: 14px 16px;
            }

            .modal-info-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .modal-flex-row>.btn {
                min-height: 48px;
                font-size: 0.85rem;
            }

            .url-row {
                flex-direction: column;
            }

            .url-input {
                width: 100%;
                font-size: 0.75rem;
                padding: 12px;
            }

            .url-btn {
                width: 100%;
                justify-content: center;
                min-height: 48px;
            }

            .method-header {
                flex-direction: column;
                gap: 6px;
            }

            .method-card {
                padding: 14px;
            }

            .form-grid {
                max-width: 100%;
            }

            .modal-flex-end {
                flex-direction: column;
            }

            .modal-flex-end>.btn {
                width: 100%;
                justify-content: center;
                min-height: 44px;
            }

            .toast-container {
                right: 16px;
                left: 16px;
                bottom: 80px;
            }

            .confirm-title {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 480px) {
            .confirm-title {
                font-size: 1.1rem;
            }
        }

        /* Admin Hub Tabs */
        .admin-tabs {
            display: flex;
            gap: 12px;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 12px;
        }

        .admin-tab {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            padding: 10px 20px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .admin-tab:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
        }

        .admin-tab.active {
            background: var(--accent-primary);
            color: var(--bg-primary);
            border-color: var(--accent-primary);
        }

        .admin-tab-content {
            display: none;
        }

        .admin-tab-content.active {
            display: block;
        }