:root {
            --primary: #4361ee;
            --primary-light: #eef2ff;
            --primary-dark: #3a56d4;
            --secondary: #ffc107;
            --red: #ef476f;
            --green: #06d6a0;
            --blue-accent: #4361ee;
            --purple-accent: #7209b7;
            
            --surface-1: #ffffff;
            --surface-2: #f8f9fa;
            --surface-3: #f1f3f4;
            --surface-4: #e8eaed;
            --surface-5: #dadce0;
            
            --text-primary: #202124;
            --text-secondary: #5f6368;
            --text-tertiary: #80868b;
            --text-disabled: #9aa0a6;
            --text-on-primary: #ffffff;
            
            --elevation-1: 0 1px 3px 0 rgba(60, 64, 67, 0.15), 0 1px 2px 0 rgba(60, 64, 67, 0.3);
            --elevation-2: 0 2px 6px 2px rgba(60, 64, 67, 0.15), 0 1px 2px 0 rgba(60, 64, 67, 0.3);
            --elevation-3: 0 4px 8px 3px rgba(60, 64, 67, 0.15), 0 1px 3px 0 rgba(60, 64, 67, 0.3);
            --elevation-4: 0 6px 10px 4px rgba(60, 64, 67, 0.15), 0 2px 3px 0 rgba(60, 64, 67, 0.3);
            
            --space-xxs: 2px;
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 24px;
            --space-xl: 32px;
            --space-xxl: 48px;
            
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-pill: 500px;
            --radius-circle: 50%;
            
            --transition-fast: 0.1s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-normal: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            
            --font-family-ar: 'Almarai', sans-serif;
            --font-family-en: 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --font-family: var(--font-family-ar);
            
            --z-drawer: 100;
            --z-sticky: 200;
            --z-overlay: 300;
            --z-modal: 400;
            --z-toast: 500;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: var(--font-family);
        }
        
        html, body {
            width: 100%;
            height: 100%;
            background-color: var(--surface-2);
            color: var(--text-primary);
            scroll-behavior: smooth;
        }
        
        body {
            overflow-x: hidden;
            display: flex;
            flex-direction: column;
        }
        
        body.rtl {
            direction: rtl;
        }
        
        body.ltr {
            direction: ltr;
        }
        
        h1, h2, h3, h4, h5, h6 {
            margin-bottom: var(--space-md);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
        }
        
        h1 {
            font-size: clamp(1.25rem, 3vw, 1.5rem);
            font-weight: 600;
        }
        
        h2 {
            font-size: clamp(1.5rem, 4vw, 1.75rem);
        }
        
        h3 {
            font-size: clamp(1.2rem, 3vw, 1.4rem);
            color: var(--primary-dark);
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: var(--space-sm);
            margin-top: var(--space-xl);
            margin-bottom: var(--space-lg);
        }
        
        p {
            margin-bottom: var(--space-md);
            line-height: 1.8;
            font-size: 1.05rem;
        }
        
        ul, ol {
            margin-bottom: var(--space-lg);
            padding-right: var(--space-lg);
        }
        
        body.ltr ul, body.ltr ol {
            padding-right: 0;
            padding-left: var(--space-lg);
        }
        
        li {
            margin-bottom: var(--space-sm);
            line-height: 1.7;
            font-size: 1rem;
        }
        
        .container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding: 0 var(--space-md);
        }
        
        main {
            flex: 1;
            padding: var(--space-xl) 0;
        }
        
        .app-header {
            background-color: var(--primary);
            color: var(--text-on-primary);
            padding: var(--space-md) 0;
            position: sticky;
            top: 0;
            z-index: var(--z-sticky);
            box-shadow: var(--elevation-2);
        }
        
        .header-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
        }
        
        .app-logo {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            color: var(--text-on-primary);
            text-decoration: none;
        }
        
        .app-logo svg {
            width: 40px;
            height: 40px;
            fill: white;
        }
        
        .logo-text {
            display: flex;
            flex-direction: column;
        }
        
        .app-title {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1;
            margin: 0;
            color: white;
        }
        
        .app-subtitle {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 400;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: var(--space-md);
        }
        
        .language-switch {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.15) 100%);
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-pill);
            padding: var(--space-sm) var(--space-md);
            color: white;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            min-height: 44px;
        }
        
        .language-switch:hover {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0.25) 100%);
            border-color: rgba(255, 255, 255, 0.5);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            transform: translateY(-1px);
        }
        
        .back-link {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            background: rgba(255, 255, 255, 0.15);
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-pill);
            padding: var(--space-sm) var(--space-md);
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all var(--transition-normal);
            min-height: 44px;
        }
        
        .back-link:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-1px);
        }
        
        .card {
            background-color: var(--surface-1);
            border-radius: var(--radius-lg);
            box-shadow: var(--elevation-1);
            padding: var(--space-xl);
            margin-bottom: var(--space-xl);
            transition: box-shadow var(--transition-normal), transform var(--transition-normal);
            border: 1px solid var(--surface-4);
            overflow: hidden;
            position: relative;
        }
        
        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--blue-accent), var(--green));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        
        .card:hover {
            box-shadow: var(--elevation-2);
            transform: translateY(-3px);
        }
        
        .card:hover::before {
            opacity: 1;
        }
        
        .card-header {
            margin-bottom: var(--space-lg);
            padding-bottom: var(--space-md);
            border-bottom: 1px solid var(--surface-4);
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }
        
        .card-title {
            margin: 0;
            font-weight: 700;
            color: var(--primary-dark);
        }
        
        .card-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-size: 1.5rem;
        }
        
        .form-group {
            margin-bottom: var(--space-lg);
        }
        
        .form-label {
            display: block;
            margin-bottom: var(--space-sm);
            font-weight: 600;
            color: var(--text-primary);
        }
        
        .form-control {
            width: 100%;
            padding: var(--space-md);
            font-size: 1.1rem;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--surface-1);
            border: 2px solid var(--surface-4);
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05) inset;
            font-family: 'Almarai', Arial, sans-serif;
        }
        
        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px var(--primary-light), 0 2px 5px rgba(0, 0, 0, 0.05) inset;
            transform: translateY(-1px);
        }
        
        textarea.form-control {
            min-height: 140px;
            resize: vertical;
            direction: rtl;
            text-align: right;
            line-height: 1.8;
        }
        
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
            padding: var(--space-md) var(--space-lg);
            font-weight: 600;
            font-size: 1rem;
            text-align: center;
            white-space: nowrap;
            vertical-align: middle;
            user-select: none;
            border: none;
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            cursor: pointer;
            outline: none;
            position: relative;
            overflow: hidden;
            min-height: 44px;
        }
        
        .btn:focus-visible {
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.5);
        }
        
        .btn-icon {
            font-size: 1.25rem;
        }
        
        .btn-primary {
            background-color: var(--primary);
            color: white;
            box-shadow: 0 2px 5px rgba(67, 97, 238, 0.3);
        }
        
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 8px rgba(67, 97, 238, 0.4);
            transform: translateY(-1px);
        }
        
        .btn-primary:disabled {
            background-color: var(--text-disabled);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        .btn-success {
            background-color: var(--green);
            color: white;
            box-shadow: 0 2px 5px rgba(6, 214, 160, 0.3);
        }
        
        .btn-success:hover {
            background-color: #05c090;
            box-shadow: 0 4px 8px rgba(6, 214, 160, 0.4);
            transform: translateY(-1px);
        }
        
        .btn-danger {
            background-color: var(--red);
            color: white;
            box-shadow: 0 2px 5px rgba(239, 71, 111, 0.3);
        }
        
        .btn-danger:hover {
            background-color: #e63e69;
            box-shadow: 0 4px 8px rgba(239, 71, 111, 0.4);
            transform: translateY(-1px);
        }
        
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-md);
            margin-top: var(--space-lg);
        }
        
        .preview {
            padding: var(--space-lg);
            background-color: var(--surface-2);
            border: 2px dashed var(--surface-4);
            border-radius: var(--radius-md);
            min-height: 120px;
            font-family: 'Almarai', Arial, sans-serif;
            white-space: pre-wrap;
            word-break: break-word;
            margin-bottom: var(--space-lg);
            transition: all var(--transition-normal);
            font-size: 1.2rem;
            line-height: 2;
            direction: rtl;
            text-align: right;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05) inset;
        }
        
        .preview:hover {
            border-color: var(--primary-light);
            background-color: var(--surface-3);
        }
        
        .preview:empty::before {
            content: attr(data-placeholder);
            color: var(--text-tertiary);
            font-style: italic;
        }
        
        .diacritized-text {
            color: var(--primary-dark);
            font-weight: 500;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        }
        
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            grid-gap: var(--space-lg);
        }
        
        .page-title {
            font-size: clamp(1rem, 2.5vw, 1.3rem);
            font-weight: 600;
            text-align: right;
            color: var(--primary);
            margin-bottom: var(--space-lg);
            padding-bottom: var(--space-sm);
            border-bottom: 1px solid var(--surface-4);
        }
        
        .loading-spinner {
            width: 20px;
            height: 20px;
            border: 2px solid transparent;
            border-top: 2px solid currentColor;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .notification {
            position: fixed;
            top: 20px;
            left: 50%;
            transform: translateX(-50%) translateY(-100px);
            background-color: var(--surface-1);
            border-radius: var(--radius-md);
            padding: var(--space-md) var(--space-lg);
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            box-shadow: var(--elevation-4);
            z-index: var(--z-toast);
            opacity: 0;
            transition: all var(--transition-normal);
            max-width: 90%;
            width: auto;
        }
        
        .notification.success {
            border-right: 4px solid var(--green);
        }
        
        .notification.error {
            border-right: 4px solid var(--red);
        }
        
        body.ltr .notification.success {
            border-right: none;
            border-left: 4px solid var(--green);
        }
        
        body.ltr .notification.error {
            border-right: none;
            border-left: 4px solid var(--red);
        }
        
        .notification.show {
            transform: translateX(-50%) translateY(0);
            opacity: 1;
        }
        
        .notification-icon {
            color: var(--green);
        }
        
        .notification.error .notification-icon {
            color: var(--red);
        }
        
        .notification-message {
            flex: 1;
            font-weight: 600;
        }
        
        .notification-close {
            margin-right: var(--space-md);
            cursor: pointer;
            color: var(--text-tertiary);
            transition: color var(--transition-normal);
        }
        
        body.ltr .notification-close {
            margin-right: 0;
            margin-left: var(--space-md);
        }
        
        .notification-close:hover {
            color: var(--text-primary);
        }
        
        .feature-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--space-xs);
            background-color: var(--primary-light);
            color: var(--primary);
            padding: var(--space-xs) var(--space-sm);
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: var(--space-sm);
        }
        
        .form-hint {
            font-size: 0.85rem;
            color: var(--text-tertiary);
            margin-top: var(--space-xs);
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: var(--space-md);
            margin: var(--space-lg) 0;
        }
        
        .stat-card {
            background: linear-gradient(135deg, var(--surface-1) 0%, var(--surface-2) 100%);
            padding: var(--space-lg);
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--surface-4);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            transform: scaleX(0);
            transition: transform var(--transition-normal);
        }
        
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--elevation-2);
        }
        
        .stat-card:hover::before {
            transform: scaleX(1);
        }
        
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            margin-bottom: var(--space-xs);
            transition: color var(--transition-normal);
        }
        
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Enhanced Info Section Styling */
        .info-highlight {
            background: linear-gradient(135deg, var(--primary-light) 0%, rgba(67, 97, 238, 0.05) 100%);
            border-left: 4px solid var(--primary);
            padding: var(--space-lg);
            border-radius: var(--radius-md);
            margin-bottom: var(--space-lg);
            position: relative;
            overflow: hidden;
        }

        body.ltr .info-highlight {
            border-left: none;
            border-right: 4px solid var(--primary);
        }

        .info-highlight::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100px;
            height: 100px;
            background: rgba(67, 97, 238, 0.1);
            border-radius: 50%;
            transform: translate(30px, -30px);
        }

        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--space-md);
            margin: var(--space-lg) 0;
        }

        .feature-item {
            background: var(--surface-2);
            padding: var(--space-lg);
            border-radius: var(--radius-md);
            border: 1px solid var(--surface-4);
            transition: all var(--transition-normal);
            position: relative;
            text-align: center;
        }

        .feature-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--elevation-2);
            border-color: var(--primary-light);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--space-md);
            color: white;
            font-size: 1.8rem;
        }

        .feature-item strong {
            color: var(--primary-dark);
            display: block;
            margin-bottom: var(--space-sm);
            font-size: 1.1rem;
        }

        .steps-container {
            background: var(--surface-2);
            border-radius: var(--radius-lg);
            padding: var(--space-xl);
            margin: var(--space-lg) 0;
            border: 1px solid var(--surface-4);
        }

        .step-item {
            display: flex;
            align-items: flex-start;
            gap: var(--space-md);
            margin-bottom: var(--space-lg);
            padding: var(--space-md);
            background: var(--surface-1);
            border-radius: var(--radius-md);
            border: 1px solid var(--surface-4);
            transition: all var(--transition-normal);
        }

        .step-item:hover {
            box-shadow: var(--elevation-1);
            transform: translateY(-1px);
        }

        .step-number {
            background: var(--primary);
            color: white;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .step-content {
            flex: 1;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--space-lg);
            margin: var(--space-lg) 0;
        }

        .benefit-card {
            background: linear-gradient(135deg, var(--surface-1) 0%, var(--surface-2) 100%);
            padding: var(--space-lg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--surface-4);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--green));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .benefit-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--elevation-2);
        }

        .benefit-card:hover::before {
            opacity: 1;
        }

        .benefit-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: var(--space-md);
            color: var(--primary);
            font-size: 1.5rem;
        }

        .benefit-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: var(--space-sm);
        }

        .benefit-description {
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        
        @media (max-width: 768px) {
            .app-header {
                padding: var(--space-xs) 0;
            }
            
            .grid-2 {
                grid-template-columns: 1fr;
            }
            
            .card {
                padding: var(--space-md);
                border-radius: var(--radius-md);
            }
            
            .btn-group {
                flex-direction: column;
            }
            
            .btn {
                width: 100%;
            }
            
            .app-title {
                font-size: 1.1rem;
            }
            
            .app-subtitle {
                font-size: 0.75rem;
                display: none;
            }
            
            .header-actions {
                gap: var(--space-sm);
            }
            
            .language-switch {
                padding: var(--space-xs) var(--space-sm);
                font-size: 0.9rem;
            }

            .feature-list {
                grid-template-columns: 1fr;
            }

            .step-item {
                flex-direction: column;
                text-align: center;
            }

            .benefits-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 480px) {
            .language-switch span:not(.material-icons-round) {
                display: none;
            }
            
            .language-switch {
                padding: var(--space-sm);
                min-width: 44px;
                justify-content: center;
            }
            
            .back-link span:not(.material-icons-round) {
                display: none;
            }
        }
        
        .footer {
            background-color: var(--primary);
            padding: var(--space-xl) 0;
            color: white;
            margin-top: var(--space-xxl);
        }
        
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        
        .footer-links {
            display: flex;
            gap: var(--space-lg);
            margin-bottom: var(--space-md);
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .footer-link {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: color var(--transition-normal);
            font-weight: 500;
            padding: var(--space-xs) var(--space-sm);
        }
        
        .footer-link:hover {
            color: white;
            text-decoration: underline;
        }
        
        .footer-copyright {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
        }