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

        :root {
            --primary: #4361ee;
            --secondary: #3f37c9;
            --success: #4cc9f0;
            --danger: #f72585;
            --warning: #f8961e;
            --info: #4895ef;
            --light: #f8f9fa;
            --dark: #212529;
            --text-primary: #2d3748;
            --text-secondary: #718096;
            --bg-color: #f7fafc;
            --card-bg: #ffffff;
            --sidebar-bg: #ffffff;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        [data-theme="dark"] {
            --primary: #4361ee;
            --secondary: #4cc9f0;
            --success: #4ade80;
            --danger: #f87171;
            --warning: #fbbf24;
            --info: #60a5fa;
            --light: #1f2937;
            --dark: #f9fafb;
            --text-primary: #e2e8f0;
            --text-secondary: #a0aec0;
            --bg-color: #111827;
            --card-bg: #1e293b;
            --sidebar-bg: #1a2438;
            --border-color: #374151;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-primary);
            transition: var(--transition);
            line-height: 1.6;
        }

        .dashboard {
            display: grid;
            grid-template-columns: 250px 1fr;
            grid-template-rows: 60px 1fr 40px;
            grid-template-areas:
                "sidebar header"
                "sidebar content"
                "sidebar footer";
            min-height: 100vh;
        }

        /* Header Styles */
        .header {
            grid-area: header;
            background-color: var(--card-bg);
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow);
            z-index: 10;
        }

        .search-container {
            display: flex;
            align-items: center;
            background-color: var(--bg-color);
            border-radius: 20px;
            padding: 0.5rem 1rem;
            width: 300px;
        }

        .search-container input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            width: 100%;
            margin-left: 0.5rem;
            outline: none;
        }

        .user-actions {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .notification-badge {
            position: relative;
            cursor: pointer;
        }

        .badge {
            position: absolute;
            top: -5px;
            right: -5px;
            background-color: var(--danger);
            color: white;
            border-radius: 50%;
            width: 18px;
            height: 18px;
            font-size: 0.7rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .user-profile {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            cursor: pointer;
        }

        .avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }

        /* Sidebar Styles */
        .sidebar {
            grid-area: sidebar;
            background-color: var(--sidebar-bg);
            padding: 1.5rem 0;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            z-index: 20;
            transition: var(--transition);
        }

        .logo {
            padding: 0 1.5rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--primary);
            font-weight: bold;
            font-size: 1.25rem;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 1rem;
        }

        .logo i {
            font-size: 1.75rem;
        }

        .menu {
            list-style: none;
            flex-grow: 1;
        }

        .menu-item {
            padding: 0.9rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            cursor: pointer;
            transition: var(--transition);
            color: var(--text-secondary);
        }

        .menu-item:hover, .menu-item.active {
            background-color: var(--bg-color);
            color: var(--primary);
            border-left: 4px solid var(--primary);
        }

        .menu-item i {
            width: 20px;
            text-align: center;
        }

        .theme-toggle-container {
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .theme-toggle {
            position: relative;
            display: inline-block;
            width: 50px;
            height: 24px;
        }

        .theme-toggle input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--border-color);
            transition: var(--transition);
            border-radius: 34px;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 18px;
            width: 18px;
            left: 3px;
            bottom: 3px;
            background-color: white;
            transition: var(--transition);
            border-radius: 50%;
        }

        input:checked + .slider {
            background-color: var(--primary);
        }

        input:checked + .slider:before {
            transform: translateX(26px);
        }

        /* Content Styles */
        .content {
            grid-area: content;
            padding: 1.5rem;
            background-color: var(--bg-color);
            overflow-y: auto;
        }

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

        .welcome h1 {
            font-size: 1.5rem;
            margin-bottom: 0.25rem;
        }

        .welcome p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }

        .btn-primary {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
        }

        .btn-primary:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(67, 97, 238, 0.3);
        }

        .stats-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .stat-card {
            background-color: var(--card-bg);
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        }

        .stat-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-right: 1rem;
        }

        .stat-details h3 {
            font-size: 1.5rem;
            margin-bottom: 0.25rem;
        }

        .stat-details p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .trend {
            display: flex;
            align-items: center;
            font-size: 0.8rem;
            margin-top: 0.25rem;
        }

        .trend.up {
            color: var(--success);
        }

        .trend.down {
            color: var(--danger);
        }

        .charts-container {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .chart-card {
            background-color: var(--card-bg);
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }

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

        .chart-title {
            font-size: 1.1rem;
            font-weight: 600;
        }

        .chart-content {
            height: 250px;
            position: relative;
        }

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

        .chart-actions button {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            cursor: pointer;
            font-size: 0.9rem;
            padding: 0.25rem;
        }

        .chart-actions button:hover {
            color: var(--primary);
        }

        .recent-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        .recent-card {
            background-color: var(--card-bg);
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }

        .table-responsive {
            overflow-x: auto;
        }

        table {
            width: 100%;
            border-collapse: collapse;
        }

        th, td {
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }

        th {
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .status {
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .status-completed {
            background-color: rgba(76, 201, 240, 0.1);
            color: var(--success);
        }

        .status-pending {
            background-color: rgba(248, 150, 30, 0.1);
            color: var(--warning);
        }

        .status-canceled {
            background-color: rgba(247, 37, 133, 0.1);
            color: var(--danger);
        }

        /* Footer Styles */
    .footer {
    grid-area: footer;
    background-color: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
    border-top: 1px solid var(--border-color);
    padding: 0 1.5rem;
}

.app-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    width: 100%;
    text-align: center;
}

.portfolio-link {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.portfolio-link:hover {
    color: var(--secondary);
    text-decoration: underline;
}

/* Responsive adjustments for footer */
@media (max-width: 576px) {
    .app-footer {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .app-footer p {
        font-size: 0.7rem;
    }
}

        /* Responsive Styles */
        @media (max-width: 992px) {
            .dashboard {
                grid-template-columns: 1fr;
                grid-template-rows: 60px 1fr 40px;
                grid-template-areas:
                    "header"
                    "content"
                    "footer";
            }

            .sidebar {
                position: fixed;
                top: 0;
                left: -250px;
                height: 100vh;
                width: 250px;
                transition: left 0.3s ease;
                z-index: 1000;
            }

            .sidebar.active {
                left: 0;
            }

            .menu-toggle {
                display: block;
                cursor: pointer;
                font-size: 1.25rem;
            }

            .overlay {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background-color: rgba(0, 0, 0, 0.5);
                z-index: 999;
                display: none;
            }

            .overlay.active {
                display: block;
            }

            .charts-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .search-container {
                width: 200px;
            }

            .stats-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            .header {
                padding: 0 1rem;
            }

            .content {
                padding: 1rem;
            }

            .search-container {
                display: none;
            }

            .user-profile span {
                display: none;
            }

            .content-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
        }