Initial commit - QR Master application
This commit is contained in:
Timo Knuth
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src/components/marketing/InstantGenerator.tsx
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src/components/marketing/InstantGenerator.tsx
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'use client';
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import React, { useState } from 'react';
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import { QRCodeSVG } from 'qrcode.react';
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import { Card } from '@/components/ui/Card';
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import { Input } from '@/components/ui/Input';
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import { Button } from '@/components/ui/Button';
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import { Badge } from '@/components/ui/Badge';
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import { calculateContrast } from '@/lib/utils';
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interface InstantGeneratorProps {
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t: any; // i18n translation function
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}
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export const InstantGenerator: React.FC<InstantGeneratorProps> = ({ t }) => {
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const [url, setUrl] = useState('https://example.com');
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const [foregroundColor, setForegroundColor] = useState('#000000');
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const [backgroundColor, setBackgroundColor] = useState('#FFFFFF');
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const [cornerStyle, setCornerStyle] = useState('square');
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const [size, setSize] = useState(200);
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const contrast = calculateContrast(foregroundColor, backgroundColor);
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const hasGoodContrast = contrast >= 4.5;
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const downloadQR = (format: 'svg' | 'png') => {
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const svg = document.querySelector('#instant-qr-preview svg');
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if (!svg || !url) return;
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if (format === 'svg') {
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const svgData = new XMLSerializer().serializeToString(svg);
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const blob = new Blob([svgData], { type: 'image/svg+xml' });
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const downloadUrl = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = downloadUrl;
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a.download = 'qrcode.svg';
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(downloadUrl);
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} else {
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// Convert SVG to PNG using Canvas
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const canvas = document.createElement('canvas');
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const ctx = canvas.getContext('2d');
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const img = new Image();
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const svgData = new XMLSerializer().serializeToString(svg);
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const blob = new Blob([svgData], { type: 'image/svg+xml' });
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const url = URL.createObjectURL(blob);
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img.onload = () => {
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canvas.width = size;
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canvas.height = size;
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if (ctx) {
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ctx.fillStyle = backgroundColor;
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ctx.fillRect(0, 0, size, size);
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ctx.drawImage(img, 0, 0, size, size);
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}
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canvas.toBlob((blob) => {
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if (blob) {
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const downloadUrl = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = downloadUrl;
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a.download = 'qrcode.png';
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(downloadUrl);
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}
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});
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URL.revokeObjectURL(url);
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};
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img.src = url;
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}
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};
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return (
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<section className="py-16 bg-gray-50">
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<div className="container mx-auto px-4">
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<div className="text-center mb-12">
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<h2 className="text-3xl lg:text-4xl font-bold text-gray-900 mb-4">
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{t('generator.title')}
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</h2>
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</div>
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<div className="grid lg:grid-cols-2 gap-12 max-w-6xl mx-auto">
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{/* Left Form */}
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<Card className="space-y-6">
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<Input
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label="URL"
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value={url}
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onChange={(e) => setUrl(e.target.value)}
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placeholder={t('generator.url_placeholder')}
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/>
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<div className="grid grid-cols-2 gap-4">
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<div>
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<label className="block text-sm font-medium text-gray-700 mb-2">
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{t('generator.foreground')}
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</label>
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<div className="flex items-center space-x-2">
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<input
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type="color"
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value={foregroundColor}
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onChange={(e) => setForegroundColor(e.target.value)}
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className="w-12 h-10 rounded border border-gray-300"
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/>
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<Input
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value={foregroundColor}
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onChange={(e) => setForegroundColor(e.target.value)}
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className="flex-1"
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/>
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</div>
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</div>
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<div>
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<label className="block text-sm font-medium text-gray-700 mb-2">
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{t('generator.background')}
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</label>
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<div className="flex items-center space-x-2">
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<input
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type="color"
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value={backgroundColor}
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onChange={(e) => setBackgroundColor(e.target.value)}
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className="w-12 h-10 rounded border border-gray-300"
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/>
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<Input
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value={backgroundColor}
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onChange={(e) => setBackgroundColor(e.target.value)}
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className="flex-1"
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/>
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</div>
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</div>
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</div>
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<div className="grid grid-cols-2 gap-4">
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<div>
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<label className="block text-sm font-medium text-gray-700 mb-2">
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{t('generator.corners')}
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</label>
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<select
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value={cornerStyle}
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onChange={(e) => setCornerStyle(e.target.value)}
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className="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary-500"
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>
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<option value="square">Square</option>
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<option value="rounded">Rounded</option>
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</select>
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</div>
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<div>
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<label className="block text-sm font-medium text-gray-700 mb-2">
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{t('generator.size')}
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</label>
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<input
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type="range"
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min="100"
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max="400"
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value={size}
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onChange={(e) => setSize(Number(e.target.value))}
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className="w-full"
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/>
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<div className="text-sm text-gray-500 text-center mt-1">{size}px</div>
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</div>
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</div>
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<div className="flex items-center justify-between">
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<Badge variant={hasGoodContrast ? 'success' : 'warning'}>
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{hasGoodContrast ? t('generator.contrast_good') : 'Low contrast'}
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</Badge>
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<div className="text-sm text-gray-500">
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Contrast: {contrast.toFixed(1)}:1
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</div>
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</div>
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<div className="flex space-x-3">
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<Button variant="outline" className="flex-1" onClick={() => downloadQR('svg')}>
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{t('generator.download_svg')}
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</Button>
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<Button variant="outline" className="flex-1" onClick={() => downloadQR('png')}>
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{t('generator.download_png')}
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</Button>
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</div>
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<Button className="w-full">
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{t('generator.save_track')}
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</Button>
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</Card>
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{/* Right Preview */}
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<div className="flex flex-col items-center justify-center">
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<Card className="text-center p-8">
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<h3 className="text-lg font-semibold mb-4">{t('generator.live_preview')}</h3>
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<div id="instant-qr-preview" className="flex justify-center mb-4">
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{url ? (
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<div className={`${cornerStyle === 'rounded' ? 'rounded-lg overflow-hidden' : ''}`}>
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<QRCodeSVG
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value={url}
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size={Math.min(size, 200)}
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fgColor={foregroundColor}
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bgColor={backgroundColor}
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level="M"
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/>
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</div>
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) : (
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<div
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className="bg-gray-200 flex items-center justify-center text-gray-500"
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style={{ width: 200, height: 200 }}
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>
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Enter URL
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</div>
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)}
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</div>
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<div className="text-sm text-gray-600 mb-2">URL</div>
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<div className="text-xs text-gray-500">{t('generator.demo_note')}</div>
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</Card>
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</div>
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</div>
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</div>
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</section>
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);
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};
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