:root {
            --primary-color: #1565c0;
            --secondary-color: #00897b;
            --accent-color: #ff6d00;
            --dark-color: #212121;
            --light-color: #f5f5f5;
            --sidebar-width: 280px;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f5f7fa;
            overflow-x: hidden;
        }
        
        .sidebar {
            width: var(--sidebar-width);
            height: 100vh;
            position: fixed;
            left: 0;
            top: 0;
            background: var(--dark-color);
            color: white;
            transition: all 0.3s;
            z-index: 1000;
            box-shadow: 5px 0 15px rgba(0,0,0,0.1);
        }
        
        .sidebar-brand {
            padding: 1.5rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            text-align: center;
        }
        
        .brand-logo {
            font-weight: 700;
            font-size: 1.5rem;
            background: linear-gradient(to right, #64b5f6, #4dd0e1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .sidebar-menu {
            padding: 1rem 0;
            height: calc(100vh - 80px);
            overflow-y: auto;
        }
        
        .menu-item {
            padding: 0.75rem 1.5rem;
            margin: 0.25rem 1rem;
            border-radius: 6px;
            color: rgba(255,255,255,0.8);
            transition: all 0.3s;
            display: flex;
            align-items: center;
            text-decoration: none;
        }
        
        .menu-item:hover, .menu-item.active {
            background: var(--primary-color);
            color: white;
        }
        
        .menu-item i {
            margin-right: 12px;
            width: 20px;
            text-align: center;
        }
        
        .main-content {
            margin-left: var(--sidebar-width);
            padding: 20px;
            transition: all 0.3s;
            min-height: 100vh;
        }
        
        .top-nav {
            background: white;
            padding: 15px 25px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            margin-bottom: 25px;
        }
        
        .stats-card {
            background: white;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 25px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.05);
            transition: all 0.3s;
            border-left: 4px solid var(--primary-color);
        }
        
        .stats-card.secondary {
            border-left-color: var(--secondary-color);
        }
        
        .stats-card.accent {
            border-left-color: var(--accent-color);
        }
        
        .stats-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .stats-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: white;
            background: var(--primary-color);
        }
        
        .stats-icon.secondary {
            background: var(--secondary-color);
        }
        
        .stats-icon.accent {
            background: var(--accent-color);
        }
        
        .data-card {
            background: white;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 25px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.05);
        }
        
        .recent-transactions {
            max-height: 400px;
            overflow-y: auto;
        }
        
        .badge-outline {
            background-color: transparent;
            border: 1px solid;
        }
        
        @media (max-width: 992px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.active {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .menu-toggle {
                display: block !important;
            }
        }

        .shift-card {
            border-left: 4px solid var(--secondary-color);
            transition: all 0.3s;
        }
        .shift-card.active {
            border-left-color: var(--accent-color);
            background: rgba(255, 109, 0, 0.05);
        }
        .time-indicator {
            width: 100%;
            height: 4px;
            background: #e0e0e0;
            position: relative;
        }
        .time-progress {
            position: absolute;
            height: 100%;
            background: var(--secondary-color);
        }
        .location-card {
            border-left: 4px solid var(--primary-color);
            transition: all 0.3s;
        }
        .location-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .inventory-transfer {
            background: rgba(0, 137, 123, 0.05);
            border-radius: 8px;
            padding: 15px;
        }
        .analytics-filter {
            background: white;
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 20px;
        }
        .metric-card {
            border-radius: 10px;
            padding: 15px;
            color: white;
            margin-bottom: 15px;
        }
        .metric-1 { background: linear-gradient(135deg, #1565c0, #64b5f6); }
        .metric-2 { background: linear-gradient(135deg, #00897b, #4db6ac); }
        .metric-3 { background: linear-gradient(135deg, #ff6d00, #ff9e80); }
        .metric-4 { background: linear-gradient(135deg, #6a1b9a, #9c27b0); }
        .compare-badge {
            background: rgba(255,255,255,0.2);
            border-radius: 20px;
            padding: 3px 10px;
            font-size: 0.8rem;
        }
        .customer-header {
            background: linear-gradient(135deg, #1565c0, #2196f3);
            color: white;
            padding: 30px;
            border-radius: 10px;
        }
        .loyalty-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: rgba(255, 215, 0, 0.9);
            color: #333;
            padding: 5px 10px;
            border-radius: 20px;
            font-weight: bold;
        }
        .purchase-card {
            border-left: 3px solid var(--secondary-color);
            transition: all 0.3s;
        }
        .purchase-card:hover {
            transform: translateX(5px);
        }