:root {
            --primary: #0ff8c8;
            --primary-dark: #00d4aa;
            --secondary: #1a1a2e;
            --accent: #16213e;
            --text: #ffffff;
            --text-secondary: #b0b0b0;
            --background: #0a0a0a;
            --surface: #1a1a1a;
            --surface-light: #2a2a2a;
            --error: #ff4757;
            --warning: #ffa502;
            --success: #2ed573;
            --border: #333;
            --shadow: 0 10px 40px rgba(0, 248, 200, 0.1);
            --sidebar-width: 280px;
            --header-height: 70px;
        }

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

        body {
            font-family: 'JetBrains Mono', monospace;
            background: var(--background);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Layout Structure */
        .dashboard-container {
            display: grid;
            grid-template-areas: 
                "sidebar header"
                "sidebar main";
            grid-template-columns: var(--sidebar-width) 1fr;
            grid-template-rows: var(--header-height) 1fr;
            min-height: 100vh;
        }

        /* Sidebar */
        .sidebar {
            grid-area: sidebar;
            background: var(--surface);
            border-right: 1px solid var(--border);
            padding: 2rem 0;
            position: relative;
            overflow-y: auto;
        }

        .sidebar-logo {
            text-align: center;
            margin-bottom: 2rem;
            padding: 0 1.5rem;
        }

        .sidebar-logo h1 {
            font-size: 1.5rem;
            color: var(--primary);
            text-shadow: 0 0 10px rgba(0, 248, 200, 0.3);
        }

        .sidebar-nav {
            list-style: none;
        }

        .nav-item {
            margin-bottom: 0.5rem;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 1.5rem;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--primary);
            background: rgba(0, 248, 200, 0.1);
            border-right: 3px solid var(--primary);
        }

        .nav-icon {
            font-size: 1.25rem;
            width: 24px;
            text-align: center;
        }

        .user-profile {
            position: absolute;
            bottom: 2rem;
            left: 1.5rem;
            right: 1.5rem;
            padding: 1rem;
            background: var(--surface-light);
            border-radius: 10px;
            border: 1px solid var(--border);
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            color: var(--background);
        }

        .user-details h4 {
            font-size: 0.875rem;
            color: var(--text);
            margin-bottom: 0.25rem;
        }

        .user-details p {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        .logout-btn {
            width: 100%;
            padding: 0.5rem;
            background: rgba(255, 71, 87, 0.1);
            border: 1px solid rgba(255, 71, 87, 0.3);
            color: var(--error);
            border-radius: 5px;
            font-family: inherit;
            font-size: 0.75rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .logout-btn:hover {
            background: rgba(255, 71, 87, 0.2);
        }

        /* Header */
        .header {
            grid-area: header;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 0 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .header-title-section {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .page-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .session-timer {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: var(--surface-light);
            border-radius: 20px;
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .timer-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Main Content */
        .main-content {
            grid-area: main;
            padding: 2rem;
            overflow-y: auto;
            background: var(--background);
        }

        .content-section {
            display: none;
        }

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

        /* Dashboard Grid */
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .dashboard-card {
            background: var(--surface);
            border-radius: 15px;
            padding: 2rem;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }

        .dashboard-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--primary-dark));
        }

        .card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.5rem;
        }

        .card-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
        }

        .card-icon {
            font-size: 1.5rem;
            color: var(--primary);
        }

        .stat-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .stat-change {
            font-size: 0.75rem;
            margin-top: 0.5rem;
        }

        .stat-change.positive {
            color: var(--success);
        }

        .stat-change.negative {
            color: var(--error);
        }

        /* Health Visualization */
        .health-visualization {
            height: 400px;
            width: 100%;
            border-radius: 10px;
            overflow: hidden;
            position: relative;
            background: var(--surface-light);
        }

        .health-legend {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: rgba(26, 26, 26, 0.9);
            padding: 1rem;
            border-radius: 8px;
            font-size: 0.75rem;
            z-index: 100;
        }

        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
        }

        .legend-color {
            width: 12px;
            height: 12px;
            border-radius: 2px;
        }

        .legend-color-healthy {
            background: #2ed573;
        }

        .legend-color-warning {
            background: #ffa502;
        }

        .legend-color-error {
            background: #ff4757;
        }

        .legend-color-loadbalancer {
            background: #70a1ff;
        }

        /* Utility Classes */
        .margin-top-2 {
            margin-top: 2rem;
        }

        .form-actions {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
        }

        /* API Keys Section */
        .api-keys-section {
            background: var(--surface);
            border-radius: 15px;
            padding: 2rem;
            border: 1px solid var(--border);
            margin-bottom: 2rem;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 2rem;
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
        }

        .btn {
            padding: 0.75rem 1.5rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--background);
            border: none;
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0, 248, 200, 0.3);
        }

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

        .btn-secondary:hover {
            background: var(--border);
            box-shadow: none;
        }

        .btn-danger {
            background: rgba(255, 71, 87, 0.1);
            color: var(--error);
            border: 1px solid rgba(255, 71, 87, 0.3);
        }

        .btn-danger:hover {
            background: rgba(255, 71, 87, 0.2);
            box-shadow: 0 10px 25px rgba(255, 71, 87, 0.3);
        }

        .keys-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 1rem;
        }

        .keys-table th,
        .keys-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }

        .keys-table th {
            font-weight: 600;
            color: var(--text);
            background: var(--surface-light);
        }

        .keys-table td {
            color: var(--text-secondary);
        }

        .key-name {
            font-weight: 500;
            color: var(--text);
        }

        .key-description {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        .key-value {
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.75rem;
            background: var(--surface-light);
            padding: 0.5rem;
            border-radius: 4px;
            position: relative;
            max-width: 200px;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .key-actions {
            display: flex;
            gap: 0.5rem;
        }

        .status-badge {
            padding: 0.25rem 0.75rem;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 500;
        }

        .status-active {
            background: rgba(46, 213, 115, 0.2);
            color: var(--success);
        }

        .status-inactive {
            background: rgba(255, 71, 87, 0.2);
            color: var(--error);
        }

        .status-expired {
            background: rgba(255, 165, 2, 0.2);
            color: var(--warning);
        }

        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(5px);
            z-index: 1000;
            align-items: center;
            justify-content: center;
        }

        .modal.active {
            display: flex;
        }

        .modal-content {
            background: var(--surface);
            border-radius: 15px;
            padding: 2rem;
            border: 1px solid var(--border);
            max-width: 500px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
        }

        .modal-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 2rem;
        }

        .modal-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
        }

        .close-btn {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.3s ease;
        }

        .close-btn:hover {
            background: var(--surface-light);
            color: var(--text);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--text);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 0.75rem;
            background: var(--surface-light);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            font-family: inherit;
            font-size: 0.875rem;
            transition: all 0.3s ease;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(0, 248, 200, 0.2);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .dashboard-container {
                grid-template-areas: 
                    "header"
                    "main";
                grid-template-columns: 1fr;
                grid-template-rows: var(--header-height) 1fr;
            }

            .sidebar {
                position: fixed;
                left: -100%;
                top: 0;
                width: var(--sidebar-width);
                height: 100vh;
                z-index: 999;
                transition: left 0.3s ease;
            }

            .sidebar.active {
                left: 0;
            }

            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 40px;
                height: 40px;
                background: var(--surface-light);
                border: 1px solid var(--border);
                border-radius: 8px;
                color: var(--text);
                cursor: pointer;
                font-size: 1.25rem;
            }
        }

        @media (min-width: 1025px) {
            .mobile-menu-btn {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .main-content {
                padding: 1rem;
            }

            .dashboard-grid {
                grid-template-columns: 1fr;
            }

            .keys-table {
                font-size: 0.75rem;
            }

            .keys-table th,
            .keys-table td {
                padding: 0.5rem;
            }
        }

        /* Loading and Empty States */
        .loading-spinner {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 200px;
        }

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

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

        .empty-state {
            text-align: center;
            padding: 3rem;
            color: var(--text-secondary);
        }

        .empty-state .empty-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        /* Activity Items */
        .activity-item {
            padding: 1rem;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .activity-description {
            font-weight: 500;
            color: var(--text);
        }

        .activity-details {
            font-size: 0.75rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
        }

        .activity-time {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        /* Success/Error Messages */
        .message {
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            font-size: 0.875rem;
        }

        .message.success {
            background: rgba(46, 213, 115, 0.1);
            border: 1px solid rgba(46, 213, 115, 0.3);
            color: var(--success);
        }

        .message.error {
            background: rgba(255, 71, 87, 0.1);
            border: 1px solid rgba(255, 71, 87, 0.3);
            color: var(--error);
        }