:root {
            --primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --primary-solid: #667eea;
            --secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            --warning: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
            --danger: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --dark: #1a1a2e;
            --card-bg: rgba(255, 255, 255, 0.95);
            --glass-bg: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.2);
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.15);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
            z-index: 0;
            pointer-events: none;
        }

        .dashboard {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 2rem;
            padding: 2rem;
            max-width: 1600px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        /* Glassmorphism Sidebar */
        .sidebar {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            padding: 2rem;
            border-radius: 24px;
            box-shadow: var(--shadow);
            height: calc(100vh - 4rem);
            position: sticky;
            top: 2rem;
            transition: all 0.3s ease;
        }

        .sidebar:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .logo {
            text-align: center;
            margin-bottom: 2rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--glass-border);
        }

        .logo h1 {
            color: white;
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 0.5rem;
        }

        .logo p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
        }

        .nav-menu {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .nav-item {
            padding: 1rem 1.25rem;
            border-radius: 12px;
            transition: all 0.3s ease;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 1rem;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            position: relative;
            overflow: hidden;
        }

        .nav-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 0;
            height: 100%;
            background: var(--primary);
            transition: width 0.3s ease;
            z-index: -1;
        }

        .nav-item:hover::before {
            width: 100%;
        }

        .nav-item:hover {
            color: white;
            transform: translateX(5px);
        }

        .nav-item.active {
            background: var(--primary);
            color: white;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
        }

        .nav-item i {
            font-size: 1.1rem;
            width: 20px;
            text-align: center;
        }

        /* Main Content */
        .main-content {
            display: grid;
            gap: 2rem;
        }

        /* Top Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }

        .stat-card {
            background: var(--card-bg);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .stat-card.success::before { background: var(--success); }
        .stat-card.warning::before { background: var(--warning); }
        .stat-card.danger::before { background: var(--danger); }

        .stat-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }

        .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: white;
        }

        .stat-icon.primary { background: var(--primary); }
        .stat-icon.success { background: var(--success); }
        .stat-icon.warning { background: var(--warning); }
        .stat-icon.danger { background: var(--danger); }

        .stat-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.25rem;
        }

        .stat-label {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 0.75rem;
        }

        .stat-change {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .stat-change.up {
            background: rgba(76, 175, 80, 0.1);
            color: #4CAF50;
        }

        .stat-change.down {
            background: rgba(244, 67, 54, 0.1);
            color: #f44336;
        }

        /* Map Container */
        .map-section {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
            height: 500px;
        }

        .map-container {
            background: var(--card-bg);
            border-radius: 24px;
            box-shadow: var(--shadow);
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
        }

        .map-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }

        .map-header h2 {
            color: var(--dark);
            font-size: 1.3rem;
        }

        .map-controls {
            display: flex;
            gap: 0.5rem;
        }

        .map-btn {
            padding: 0.5rem 1rem;
            border: none;
            border-radius: 8px;
            background: var(--glass-bg);
            color: var(--dark);
            cursor: pointer;
            font-size: 0.85rem;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .map-btn:hover {
            background: var(--primary);
            color: white;
            transform: scale(1.05);
        }

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

        #cityMap {
            height: calc(100% - 60px);
            border-radius: 16px;
        }

        /* Location Details Panel */
        .location-panel {
            background: var(--card-bg);
            border-radius: 24px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            gap: 1rem;
            overflow-y: auto;
        }

        .location-card {
            padding: 1rem;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
            border: 1px solid rgba(102, 126, 234, 0.2);
            transition: all 0.3s ease;
        }

        .location-card:hover {
            transform: scale(1.02);
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
        }

        .location-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 0.75rem;
        }

        .location-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: white;
        }

        .location-info h4 {
            color: var(--dark);
            font-size: 1rem;
            margin-bottom: 0.25rem;
        }

        .location-info p {
            color: #666;
            font-size: 0.85rem;
        }

        .location-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.75rem;
            margin-top: 0.75rem;
        }

        .location-stat {
            padding: 0.5rem;
            background: white;
            border-radius: 8px;
            text-align: center;
        }

        .location-stat-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-solid);
        }

        .location-stat-label {
            font-size: 0.75rem;
            color: #666;
        }

        /* Charts Grid */
        .charts-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
            gap: 2rem;
        }

        .chart-container {
            background: var(--card-bg);
            border-radius: 24px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
        }

        .chart-container:hover {
            box-shadow: var(--shadow-hover);
        }

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

        .chart-header h3 {
            color: var(--dark);
            font-size: 1.2rem;
        }

        .chart-filters {
            display: flex;
            gap: 0.5rem;
        }

        .filter-btn {
            padding: 0.5rem 1rem;
            border: none;
            border-radius: 8px;
            background: rgba(102, 126, 234, 0.1);
            color: var(--primary-solid);
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .filter-btn:hover {
            background: var(--primary);
            color: white;
            transform: scale(1.05);
        }

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

        /* Alerts Panel */
        .alerts-section {
            background: var(--card-bg);
            border-radius: 24px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }

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

        .alerts-header h3 {
            color: var(--dark);
            font-size: 1.2rem;
        }

        .alert-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem;
            border-radius: 12px;
            margin-bottom: 0.75rem;
            transition: all 0.3s ease;
            border-left: 4px solid;
            background: rgba(255, 255, 255, 0.5);
        }

        .alert-item:hover {
            transform: translateX(5px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .alert-item.info { border-color: #2196F3; }
        .alert-item.warning { border-color: #FF9800; }
        .alert-item.danger { border-color: #f44336; }
        .alert-item.success { border-color: #4CAF50; }

        .alert-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: white;
            flex-shrink: 0;
        }

        .alert-icon.info { background: #2196F3; }
        .alert-icon.warning { background: #FF9800; }
        .alert-icon.danger { background: #f44336; }
        .alert-icon.success { background: #4CAF50; }

        .alert-content {
            flex: 1;
        }

        .alert-content h4 {
            color: var(--dark);
            font-size: 0.95rem;
            margin-bottom: 0.25rem;
        }

        .alert-content p {
            color: #666;
            font-size: 0.85rem;
            line-height: 1.5;
        }

        .alert-time {
            color: #999;
            font-size: 0.75rem;
            margin-top: 0.25rem;
        }

        /* Custom Marker Popup */
        .custom-popup {
            font-family: 'Segoe UI', sans-serif;
        }

        .popup-header {
            font-weight: 700;
            color: var(--primary-solid);
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
        }

        .popup-stats {
            display: grid;
            gap: 0.5rem;
        }

        .popup-stat {
            display: flex;
            justify-content: space-between;
            padding: 0.25rem 0;
            border-bottom: 1px solid #eee;
        }

        .popup-stat:last-child {
            border-bottom: none;
        }

        /* Pulse Animation for Active Markers */
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.7);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(102, 126, 234, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(102, 126, 234, 0);
            }
        }

        .pulse {
            animation: pulse 2s infinite;
        }

        /* Loading Animation */
        .loading {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* Responsive */
        @media (max-width: 1280px) {
            .dashboard {
                grid-template-columns: 1fr;
            }
            .sidebar {
                height: auto;
                position: static;
            }
            .map-section {
                grid-template-columns: 1fr;
                height: auto;
            }
            .location-panel {
                height: 300px;
            }
            .charts-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .dashboard {
                padding: 1rem;
                gap: 1rem;
            }
            .stats-bar {
                grid-template-columns: 1fr;
            }
        }

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

        ::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-solid);
        }