:root {
            --primary-color: #2563eb;
            --primary-hover: #1d4ed8;
            --secondary-color: #64748b;
            --accent-color: #10b981;
            --accent-hover: #059669;
            --danger-color: #ef4444;
            --danger-hover: #dc2626;
            --warning-color: #f59e0b;
            --warning-hover: #d97706;
            --background-primary: #ffffff;
            --background-secondary: #f8fafc;
            --background-accent: #f1f5f9;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-tertiary: #64748b;
            --border-color: #e2e8f0;
            --border-hover: #cbd5e1;
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            --radius-sm: 0.375rem;
            --radius-md: 0.5rem;
            --radius-lg: 0.75rem;
            --radius-xl: 1rem;
            --radius-2xl: 1.5rem;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #667eea 100%);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Loading Screen */
        .loading-screen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.5s ease;
        }

        .loading-content {
            text-align: center;
            color: white;
        }

        .loading-content h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .loading-content p {
            font-size: 1rem;
            opacity: 0.9;
        }

        .spinner {
            width: 48px;
            height: 48px;
            border: 4px solid rgba(255,255,255,0.3);
            border-top: 4px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin: 0 auto 1.5rem;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Professional Header */
        header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1280px;
            margin: 0 auto;
            padding: 1rem 1.5rem;
            height: 80px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
            color: var(--primary-color);
            font-weight: 700;
            font-size: 1.5rem;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.25rem;
        }

        /* Desktop Navigation */
        .nav-links {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--primary-color);
            background: rgba(37, 99, 235, 0.1);
        }

        .nav-links a.active {
            color: var(--primary-color);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }

        /* User Info */
        .user-info {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 1rem;
        }

        .user-details {
            display: flex;
            flex-direction: column;
        }

        .user-name {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
            line-height: 1.2;
        }

        .user-badge {
            background: linear-gradient(135deg, var(--accent-color), #06d6a0);
            color: white;
            padding: 0.125rem 0.5rem;
            border-radius: 9999px;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.025em;
        }

        .logout-btn {
            background: var(--danger-color);
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-md);
            cursor: pointer;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.3s ease;
            pointer-events: auto;
        }

        .logout-btn:hover {
            background: var(--danger-hover);
            transform: translateY(-1px);
        }

        /* BULLETPROOF Mobile Navigation */
        .mobile-menu-toggle {
            display: none;
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem;
            border-radius: var(--radius-md);
            cursor: pointer;
            font-size: 1.125rem;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
            min-width: 48px;
            min-height: 48px;
            z-index: 1010;
            touch-action: manipulation;
            pointer-events: auto;
        }

        .mobile-menu-toggle:hover {
            background: var(--primary-hover);
            transform: scale(1.05);
        }

        .mobile-menu-toggle:active {
            transform: scale(0.95);
        }

        /* Mobile Navigation - FORCE OVERRIDE */
        .mobile-nav-overlay {
            position: fixed !important;
            top: 0 !important;
            left: 0 !important;
            width: 100% !important;
            height: 100% !important;
            background: rgba(0, 0, 0, 0.6) !important;
            backdrop-filter: blur(4px) !important;
            z-index: 1020 !important;
            opacity: 0 !important;
            visibility: hidden !important;
            transition: all 0.3s ease !important;
            pointer-events: none !important;
            display: none !important;
        }

        .mobile-nav-overlay.active {
            opacity: 1 !important;
            visibility: visible !important;
            pointer-events: all !important;
            display: block !important;
        }

        .mobile-nav-menu {
            position: fixed !important;
            top: 0 !important;
            right: -100% !important;
            width: min(400px, 90vw) !important;
            height: 100% !important;
            background: var(--background-primary) !important;
            box-shadow: var(--shadow-xl) !important;
            transition: right 0.3s ease !important;
            z-index: 1030 !important;
            display: flex !important;
            flex-direction: column !important;
            overflow: hidden !important;
        }

        .mobile-nav-menu.open {
            right: 0 !important;
        }

        .mobile-nav-header {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            padding: 2rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .mobile-nav-title {
            font-weight: 700;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .mobile-close-btn {
            background: rgba(255, 255, 255, 0.2);
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            pointer-events: auto;
        }

        .mobile-nav-content {
            flex: 1;
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .mobile-nav-links {
            list-style: none;
            margin-bottom: 2rem;
        }

        .mobile-nav-links li {
            margin-bottom: 0.25rem;
        }

        .mobile-nav-links a {
            text-decoration: none;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 1rem;
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            border-radius: var(--radius-lg);
            transition: all 0.3s ease;
            border-left: 3px solid transparent;
            pointer-events: auto;
        }

        .mobile-nav-links a:hover {
            background: var(--background-accent);
            color: var(--primary-color);
            border-left-color: var(--primary-color);
            transform: translateX(0.25rem);
        }

        .mobile-nav-links a.active {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            border-left-color: var(--warning-color);
        }

        .mobile-user-section {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            margin-top: auto;
        }

        .mobile-user-info {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
            padding: 1rem;
            background: var(--background-secondary);
            border-radius: var(--radius-lg);
        }

        /* Welcome Hero Section */
        .welcome-hero {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            margin: 2rem 0;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.2);
            position: relative;
            overflow: hidden;
        }

        .welcome-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: heroFloat 8s ease-in-out infinite;
        }

        @keyframes heroFloat {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(180deg); }
        }

        .welcome-content {
            position: relative;
            z-index: 2;
        }

        .welcome-hero h1 {
            font-size: clamp(2rem, 4vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 1rem;
            color: white;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }

        .welcome-hero p {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
        }

        .welcome-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 2rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .welcome-stat {
            text-align: center;
            color: white;
        }

        .welcome-stat .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            display: block;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
            line-height: 1;
        }

        .welcome-stat .stat-label {
            font-size: 0.875rem;
            opacity: 0.9;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 500;
            margin-top: 0.5rem;
        }

        /* Dashboard Grid */
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 2rem;
            margin: 2rem 0 4rem;
        }

        .dashboard-section {
            background: var(--background-primary);
            border-radius: var(--radius-xl);
            padding: 2rem;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

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

        .section-header {
            display: flex;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-color);
        }

        .section-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            font-size: 1.5rem;
            color: white;
        }

        .section-title h3 {
            color: var(--text-primary);
            font-size: 1.375rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
        }

        .section-title p {
            color: var(--text-secondary);
            font-size: 0.875rem;
        }

        /* Performance Cards */
        .performance-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
        }

        .performance-card {
            background: linear-gradient(135deg, var(--accent-color), #06d6a0);
            color: white;
            padding: 1.5rem 1rem;
            border-radius: var(--radius-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: transform 0.3s ease;
        }

        .performance-card:hover {
            transform: translateY(-2px);
        }

        .performance-card.secondary {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
        }

        .performance-card.warning {
            background: linear-gradient(135deg, var(--warning-color), var(--warning-hover));
        }

        .performance-card.danger {
            background: linear-gradient(135deg, var(--danger-color), var(--danger-hover));
        }

        .performance-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 100%;
            height: 100%;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            transition: transform 0.3s ease;
        }

        .performance-card:hover::before {
            transform: scale(1.2);
        }

        .card-content {
            position: relative;
            z-index: 2;
        }

        .card-number {
            font-size: 1.75rem;
            font-weight: 700;
            display: block;
            margin-bottom: 0.5rem;
            line-height: 1;
        }

        .card-label {
            font-size: 0.75rem;
            opacity: 0.9;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 500;
        }

        /* Quick Actions */
        .quick-actions {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .action-item {
            background: var(--background-secondary);
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            border-left: 4px solid var(--primary-color);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .action-item:hover {
            background: var(--background-accent);
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }

        .action-item h4 {
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            font-size: 1.125rem;
            font-weight: 600;
        }

        .action-item p {
            color: var(--text-secondary);
            font-size: 0.875rem;
            margin-bottom: 1rem;
            line-height: 1.5;
        }

        /* Progress Section */
        .progress-item {
            margin-bottom: 1.5rem;
        }

        .progress-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }

        .progress-label {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.875rem;
        }

        .progress-value {
            font-size: 0.875rem;
            color: var(--primary-color);
            font-weight: 600;
        }

        .progress-bar {
            height: 8px;
            background: var(--background-accent);
            border-radius: 4px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
            border-radius: 4px;
            transition: width 1s ease;
        }

        /* Activity Section */
        .activity-item {
            display: flex;
            align-items: center;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .activity-item:last-child {
            border-bottom: none;
        }

        .activity-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-color), #06d6a0);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            font-size: 1.25rem;
            color: white;
        }

        .activity-content {
            flex: 1;
        }

        .activity-title {
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
            font-size: 0.875rem;
        }

        .activity-time {
            font-size: 0.75rem;
            color: var(--text-tertiary);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            font-size: 0.875rem;
            font-weight: 600;
            text-decoration: none;
            border-radius: var(--radius-lg);
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            margin: 0.25rem;
            pointer-events: auto;
        }

        .btn:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn.primary {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
            color: white;
        }

        .btn.secondary {
            background: linear-gradient(135deg, var(--secondary-color), #475569);
            color: white;
        }

        .btn.success {
            background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
            color: white;
        }

        .btn.warning {
            background: linear-gradient(135deg, var(--warning-color), var(--warning-hover));
            color: white;
        }

        .btn.danger {
            background: linear-gradient(135deg, var(--danger-color), var(--danger-hover));
            color: white;
        }

        /* Data Tables */
        .data-table {
            background: var(--background-primary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            margin-top: 1.5rem;
            border: 1px solid var(--border-color);
        }

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

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

        .data-table th {
            background: var(--background-secondary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.875rem;
        }

        .data-table tr:last-child td {
            border-bottom: none;
        }

        .data-table tr:hover {
            background: var(--background-secondary);
        }

        /* Alert Messages */
        .alert {
            padding: 1rem 1.5rem;
            margin: 1rem 0;
            border-radius: var(--radius-lg);
            font-weight: 500;
            text-align: center;
            border: 1px solid;
            animation: fadeIn 0.5s ease-out;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .alert.success {
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(6, 214, 160, 0.1));
            color: var(--accent-color);
            border-color: rgba(16, 185, 129, 0.2);
        }

        .alert.error {
            background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(220, 38, 38, 0.1));
            color: var(--danger-color);
            border-color: rgba(239, 68, 68, 0.2);
        }

        .alert.warning {
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(217, 119, 6, 0.1));
            color: var(--warning-color);
            border-color: rgba(245, 158, 11, 0.2);
        }

        /* Footer */
        .footer {
            background: var(--background-primary);
            backdrop-filter: blur(20px);
            padding: 4rem 0 2rem;
            margin-top: 4rem;
            box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
            border-top: 1px solid var(--border-color);
        }

        .footer-content {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
            text-align: center;
        }

        .footer-logo {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
        }

        .footer-description {
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            font-size: 1.125rem;
            max-width: 48rem;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2.5rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-md);
        }

        .footer-links a:hover {
            color: var(--primary-color);
            background: rgba(37, 99, 235, 0.1);
            transform: translateY(-1px);
        }

        .footer-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-color), transparent);
            margin: 2rem 0;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-tertiary);
            font-size: 0.875rem;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-copyright {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-developer {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--primary-color);
            font-weight: 600;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(16, 185, 129, 0.1));
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            border: 1px solid rgba(37, 99, 235, 0.2);
        }

        /* Utility Classes */
        .hidden {
            display: none !important;
        }

        .full-width-section {
            grid-column: 1 / -1;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none !important;
                visibility: hidden !important;
            }

            .user-info {
                display: none !important;
                visibility: hidden !important;
            }

            .mobile-menu-toggle {
                display: flex !important;
                visibility: visible !important;
                align-items: center !important;
                justify-content: center !important;
            }

            .container {
                padding: 0 1rem;
            }

            .welcome-hero {
                padding: 2rem 1.5rem;
                margin: 1.5rem 0;
            }

            .dashboard-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .dashboard-section {
                padding: 1.5rem;
            }

            .performance-cards {
                grid-template-columns: repeat(2, 1fr);
            }

            .welcome-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 1.5rem;
            }

            .footer-links {
                gap: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            .welcome-stats {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .performance-cards {
                grid-template-columns: 1fr;
            }

            .mobile-nav-menu {
                width: 100% !important;
                right: -100% !important;
            }

            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }
        }