:root {
            --primary: #2c3e50;
            --secondary: #3498db;
            --success: #27ae60;
            --danger: #e74c3c;
            --warning: #f39c12;
            --info: #17a2b8;
            --light: #ecf0f1;
            --dark: #34495e;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f7fa;
            color: #333;
        }
        
        .container {
            display: flex;
            min-height: 100vh;
        }
        
        /* Sidebar Styles */
        .sidebar {
            width: 280px;
            background-color: var(--primary);
            color: white;
            padding: 20px 0;
            transition: all 0.3s;
            overflow-y: auto;
        }
        
        .logo {
            text-align: center;
            padding: 20px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            margin-bottom: 20px;
        }
        
        .logo h2 {
            font-size: 1.5rem;
        }
        
        .nav-links {
            list-style: none;
        }
        
        .nav-links li {
            padding: 12px 20px;
            border-left: 4px solid transparent;
            transition: all 0.3s;
            cursor: pointer;
        }
        
        .nav-links li.active {
            background-color: rgba(255,255,255,0.1);
            border-left: 4px solid var(--secondary);
        }
        
        .nav-links li:hover {
            background-color: rgba(255,255,255,0.1);
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        
        .nav-links i {
            margin-right: 10px;
            font-size: 1.2rem;
        }
        
        .submenu {
            list-style: none;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background-color: rgba(0,0,0,0.1);
        }
        
        .submenu.active {
            max-height: 500px;
        }
        
        .submenu li {
            padding: 10px 20px 10px 40px;
            border-left: none;
        }
        
        .submenu li.active {
            background-color: rgba(255,255,255,0.05);
            border-left: 4px solid var(--info);
        }
        
        .has-submenu::after {
            content: '▸';
            margin-left: auto;
            transition: transform 0.3s;
        }
        
        .has-submenu.active::after {
            transform: rotate(90deg);
        }
        
        /* ssss submenu2 ssssssssssssssssssssssssssssssssssssssssssssssssssssss */
        .submenu2 {
            list-style: none;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background-color: rgba(0,0,0,0.1);
        }
        
        .submenu2.active {
            max-height: 500px;
        }
        
        .submenu2 li {
            padding: 10px 20px 10px 40px;
            border-left: none;
        }
        
        .submenu2 li.active {
            background-color: rgba(255,255,255,0.05);
            border-left: 4px solid var(--info);
        }
        
        .has-submenu2::after {
            content: '▸';
            margin-left: auto;
            transition: transform 0.3s;
        }
        
        .has-submenu2.active::after {
            transform: rotate(90deg);
        }
        /* Main Content Styles */
        .main-content {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
        }
        
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 1px solid #ddd;
        }
        
        .header h1 {
            color: var(--primary);
        }
        
        .user-info {
            display: flex;
            align-items: center;
        }
        
        .user-info img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            margin-right: 10px;
        }
        
        /* Card Styles */
        .card {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            margin-bottom: 20px;
            overflow: hidden;
        }
        
        .card-header {
            padding: 15px 20px;
            background-color: var(--light);
            border-bottom: 1px solid #ddd;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .card-body {
            padding: 20px;
        }
        
        /* Table Styles */
        table {
            width: 100%;
            border-collapse: collapse;
        }
        
        table th, table td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        
        table th {
            background-color: var(--light);
            font-weight: 600;
        }
        
        table tr:hover {
            background-color: rgba(0,0,0,0.02);
        }
        
        /* Form Styles */
        .form-group {
            margin-bottom: 15px;
        }
        
        label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
        }
        
        input, select, textarea {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }
        
        button {
            padding: 10px 20px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            transition: all 0.3s;
        }
        
        .btn-primary {
            background-color: var(--secondary);
            color: white;
        }
        
        .btn-primary:hover {
            background-color: #2980b9;
        }
        
        .btn-success {
            background-color: var(--success);
            color: white;
        }
        
        .btn-danger {
            background-color: var(--danger);
            color: white;
        }
        
        .btn-warning {
            background-color: var(--warning);
            color: white;
        }
        
        .btn-info {
            background-color: var(--info);
            color: white;
        }
        
        /* Dashboard Stats */
        .stats-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .stat-card {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 20px;
            text-align: center;
        }
        
        .stat-card h3 {
            font-size: 1.8rem;
            margin-bottom: 10px;
        }
        
        .stat-card p {
            color: #666;
        }
        
        .revenue { border-left: 4px solid var(--success); }
        .expenses { border-left: 4px solid var(--danger); }
        .profit { border-left: 4px solid var(--secondary); }
        .assets { border-left: 4px solid var(--warning); }
        
        /* Tabs */
        .tabs {
            display: flex;
            border-bottom: 1px solid #ddd;
            margin-bottom: 20px;
        }
        
        .tab {
            padding: 10px 20px;
            cursor: pointer;
            border-bottom: 3px solid transparent;
        }
        
        .tab.active {
            border-bottom: 3px solid var(--secondary);
            color: var(--secondary);
            font-weight: 600;
        }
        
        .tab-content {
            display: none;
        }
        
        .tab-content.active {
            display: block;
        }

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

        .statement-content {
            display: none;
        }   
        
        /* Login Page */
        .login-container {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background-color: var(--primary);
        }
        
        .login-form {
            background-color: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
            width: 100%;
            max-width: 400px;
        }
        
        .login-form h2 {
            text-align: center;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background-color: white;
            padding: 30px;
            border-radius: 8px;
            width: 500px;
            max-width: 90%;
            max-height: 90vh;
            overflow-y: auto;
        }
        
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid #ddd;
        }
        
        .close-modal {
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #666;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .container {
                flex-direction: column;
            }
            
            .sidebar {
                width: 100%;
                height: auto;
            }
            
            .stats-container {
                grid-template-columns: 1fr;
            }
        }