        :root {
            --primary-color: #4361ee;
            --primary-light: #edf2ff;
            --text-primary: #2d3748;
            --text-secondary: #718096;
            --border-color: #e2e8f0;
            --hover-bg: #f7fafc;
            --body-bg: #f8fafc;
            --card-bg: #ffffff;
            --header-bg: #ffffff;
        }
        
        /* Dark Theme Variables */
        [data-theme="dark"] {
            --primary-color: #6366f1;
            --primary-light: #312e81;
            --text-primary: #f9fafb;
            --text-secondary: #9ca3af;
            --border-color: #374151;
            --hover-bg: #374151;
            --body-bg: #111827;
            --card-bg: #1f2937;
            --header-bg: #1f2937;
        }
        
        body {
            background-color: var(--body-bg);
            overflow-x: hidden;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            color: var(--text-primary);
            transition: background-color 0.3s ease, color 0.3s ease;
        }
        
        /* Top Navigation - now full width */
        .top-nav {
            background-color: var(--header-bg);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            padding: 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            height: 70px;
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }
        
        [data-theme="dark"] .top-nav {
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        /* theme toggle */
        .theme-toggle {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-left: 10px;
        }
        
        .theme-toggle:hover {
            background: var(--hover-bg);
            color: var(--primary-color);
            border-color: var(--primary-color);
            transform: rotate(15deg);
        }
        
        .theme-toggle i {
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }
        
        /* Main Content - full width with top padding for fixed header */
        .main-content {
            padding: 30px;
            margin-top: 70px;
            min-height: calc(100vh - 70px);
            transition: all 0.3s ease;
        }
        
        /* Cards */
        .dashboard-card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            background: var(--card-bg);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        
        [data-theme="dark"] .dashboard-card {
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .dashboard-card:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            transform: translateY(-2px);
        }
        
        [data-theme="dark"] .dashboard-card:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }
        
        .quick-action-btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px 15px;
            border-radius: 10px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            text-decoration: none;
            color: var(--text-primary);
            text-align: center;
            height: 130px;
        }
        
        .quick-action-btn:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(67, 97, 238, 0.1);
        }
        
        [data-theme="dark"] .quick-action-btn:hover {
            box-shadow: 0 5px 15px rgba(99, 102, 241, 0.2);
        }
        
        .quick-action-btn i {
            font-size: 1.8rem;
            margin-bottom: 12px;
            color: var(--primary-color);
        }
        
        .stat-card {
            border-left: 4px solid var(--primary-color);
        }
        
        .stat-card .icon-wrapper {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: var(--primary-light);
            color: var(--primary-color);
        }
        
        .table {
            color: var(--text-primary);
            background: var(--card-bg);
        }
        
        .table thead th {
            border-bottom: 2px solid var(--border-color);
            color: var(--text-secondary);
        }
        
        .table tbody td {
            border-top: 1px solid var(--border-color);
        }
        
        .table-hover tbody tr:hover {
            background-color: var(--hover-bg);
        }
        
        .form-control {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }
        
        .form-control:focus {
            background-color: var(--card-bg);
            border-color: var(--primary-color);
            color: var(--text-primary);
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
        }
        
        [data-theme="dark"] .form-control:focus {
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
        }
        
        .btn-outline-primary {
            color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .btn-light {
            background-color: var(--hover-bg);
            border-color: var(--border-color);
            color: var(--text-primary);
        }
        
        .dropdown-menu {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        [data-theme="dark"] .dropdown-menu {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }
        
        .dropdown-item {
            color: var(--text-primary);
        }
        
        .dropdown-item:hover {
            background-color: var(--hover-bg);
            color: var(--primary-color);
        }
        
        .progress {
            background-color: var(--border-color);
        }
        
        .badge {
            transition: all 0.3s ease;
        }
        
        /* responsive */
        @media (max-width: 991px) {
            .top-nav {
                width: 100%;
            }
            .main-content {
                padding: 20px;
            }
            .quick-actions-grid {
                grid-template-columns: repeat(2, 1fr) !important;
            }
        }
        
        @media (max-width: 767px) {
            .top-nav {
                height: 60px;
            }
            .main-content {
                margin-top: 60px;
                padding: 15px;
            }
            .quick-actions-grid {
                grid-template-columns: 1fr !important;
            }
            .quick-action-btn {
                height: 90px;
                flex-direction: row;
                justify-content: flex-start;
                padding: 15px 20px;
            }
            .quick-action-btn i {
                margin-right: 15px;
                margin-bottom: 0;
                font-size: 1.5rem;
            }
        }
        
        .quick-actions-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
        }