:root {
            /* Neumorphism 2.0 Colors */
            --bg-primary: #f0f2f5;
            --bg-secondary: #e8ecf1;
            --bg-card: #f4f6f9;
            --shadow-light: #ffffff;
            --shadow-dark: #d6dae0;
            --text-primary: #2c3e50;
            --text-secondary: #5a6c7d;
            --text-muted: #8b95a1;
            --accent-primary: #3655A2;
            --accent-secondary: #B8860B;
            --accent-gold: #F7C315;
            --success: #27ae60;
            --warning: #f39c12;
            --error: #e74c3c;
            --info: #3498db;

            /* Neumorphic Shadows */
            --shadow-inset: inset 6px 6px 12px var(--shadow-dark), inset -6px -6px 12px var(--shadow-light);
            --shadow-outset: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
            --shadow-outset-hover: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
            --shadow-pressed: inset 2px 2px 4px var(--shadow-dark), inset -2px -2px 4px var(--shadow-light);
        }

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

        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
        }

        /* Neumorphic Navbar */
        .navbar {
            background: var(--bg-primary);
            padding: 1rem 2rem;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: var(--shadow-outset);
            border-radius: 0 0 24px 24px;
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--accent-primary);
        }

        .nav-brand .icon {
            width: 32px;
            height: 32px;
            background: var(--bg-card);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-outset);
            color: var(--accent-secondary);
        }

        .nav-menu {
            display: flex;
            gap: 1rem;
            list-style: none;
        }

        .nav-item {
            padding: 0.75rem 1.5rem;
            border-radius: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-primary);
            color: var(--text-secondary);
            box-shadow: var(--shadow-outset);
        }

        .nav-item:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-outset-hover);
            color: var(--accent-primary);
        }

        .nav-item.active {
            background: var(--accent-primary);
            color: white;
            box-shadow: var(--shadow-pressed);
            transform: translateY(1px);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .admin-info {
            font-size: 0.875rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .logout-btn {
            padding: 0.75rem 1.5rem;
            background: var(--error);
            color: white;
            border: none;
            border-radius: 16px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: var(--shadow-outset);
        }

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

        .logout-btn:active {
            transform: translateY(1px);
            box-shadow: var(--shadow-pressed);
        }

        /* Main Content */
        .main-content {
            margin-top: 120px;
            padding: 2rem;
            max-width: 1400px;
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            display: none;
            animation: fadeIn 0.4s ease-in;
        }

        .section.active {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .section-header {
            margin-bottom: 2rem;
            text-align: center;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.125rem;
            font-weight: 400;
        }

        /* Neumorphic Cards */
        .card {
            background: var(--bg-card);
            border-radius: 24px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-outset);
            transition: all 0.3s ease;
        }

        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-outset-hover);
        }

        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            position: relative;
        }

        .card-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--shadow-dark), transparent);
        }

        .card-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        /* Neumorphic Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            font-weight: 500;
            border-radius: 16px;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            font-size: 0.875rem;
            background: var(--bg-card);
            color: var(--text-primary);
            box-shadow: var(--shadow-outset);
        }

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

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

        .btn-primary {
            background: var(--accent-primary);
            color: white;
        }

        .btn-success {
            background: var(--success);
            color: white;
        }

        .btn-warning {
            background: var(--warning);
            color: white;
        }

        .btn-danger {
            background: var(--error);
            color: white;
        }

        .btn-small {
            padding: 0.5rem 1rem;
            font-size: 0.8rem;
        }

        /* Neumorphic Forms */
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            display: block;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 1rem;
            border: none;
            border-radius: 16px;
            font-size: 1rem;
            background: var(--bg-primary);
            color: var(--text-primary);
            box-shadow: var(--shadow-inset);
            transition: all 0.3s ease;
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            outline: none;
            box-shadow: var(--shadow-inset), 0 0 0 3px rgba(54, 85, 162, 0.1);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
        }

        /* Stats Cards */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: 24px;
            padding: 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-outset);
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-outset-hover);
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-gold));
            border-radius: 24px 24px 0 0;
        }

        .stat-icon {
            width: 60px;
            height: 60px;
            background: var(--bg-primary);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: var(--shadow-outset);
            color: var(--accent-primary);
        }

        .stat-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-primary);
            margin-bottom: 0.5rem;
        }

        .stat-label {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 1rem;
        }

        /* Neumorphic Tables */
        .table-container {
            background: var(--bg-primary);
            border-radius: 20px;
            padding: 1rem;
            box-shadow: var(--shadow-inset);
            overflow: hidden;
        }

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

        .table th,
        .table td {
            padding: 1rem;
            text-align: left;
        }

        .table th {
            background: var(--bg-card);
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.875rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            border-radius: 12px;
            box-shadow: var(--shadow-outset);
            margin-bottom: 0.5rem;
        }

        .table tbody tr {
            transition: all 0.2s ease;
        }

        .table tbody tr:hover {
            background: var(--bg-secondary);
            border-radius: 12px;
        }

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

        /* Upload Area */
        .upload-area {
            border: 2px dashed var(--shadow-dark);
            border-radius: 24px;
            padding: 3rem;
            text-align: center;
            background: var(--bg-primary);
            box-shadow: var(--shadow-inset);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .upload-area.dragover {
            border-color: var(--accent-primary);
            background: rgba(54, 85, 162, 0.05);
            box-shadow: var(--shadow-inset), 0 0 20px rgba(54, 85, 162, 0.1);
        }

        .upload-icon {
            width: 80px;
            height: 80px;
            background: var(--bg-card);
            border-radius: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: var(--shadow-outset);
            color: var(--accent-primary);
            font-size: 2rem;
        }

        /* Modal */
        .modal {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 2000;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(8px);
        }

        .modal.active {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-content {
            background: var(--bg-card);
            border-radius: 24px;
            padding: 2rem;
            max-width: 500px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
            box-shadow: var(--shadow-outset-hover);
            animation: modalAppear 0.3s ease-out;
        }

        @keyframes modalAppear {
            from {
                opacity: 0;
                transform: scale(0.9) translateY(20px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        .modal-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .modal-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: var(--shadow-outset);
        }

        .modal-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .modal-subtitle {
            color: var(--text-secondary);
            font-weight: 400;
        }

        /* Progress */
        .progress-container {
            background: var(--bg-primary);
            border-radius: 12px;
            height: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-inset);
            margin-top: 1rem;
        }

        .progress-bar {
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-gold));
            height: 100%;
            width: 0%;
            transition: width 0.3s ease;
            border-radius: 12px;
            box-shadow: var(--shadow-outset);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .navbar {
                padding: 1rem;
                border-radius: 0 0 16px 16px;
            }
            .nav-menu {
                display: none;
            }
            .main-content {
                padding: 1rem;
                margin-top: 100px;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 2rem;
            }
        }

        /* Status badges */
        .status-badge {
            padding: 0.5rem 1rem;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: var(--shadow-outset);
        }

        .status-active {
            background: var(--success);
            color: white;
        }

        .status-inactive {
            background: var(--error);
            color: white;
        }

        /* Code elements */
        code {
            background: var(--bg-primary);
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            font-family: 'SF Mono', Monaco, monospace;
            font-size: 0.875rem;
            box-shadow: var(--shadow-inset);
        }