feat: Add 19 free QR code tools with SEO optimization
- Added PayPal, Zoom, Teams QR generators - Added lazy loading for html-to-image (performance) - Created 19 OG images for social sharing - Added robots.txt and updated sitemap - Fixed mobile navigation with accordion menu - Added 7 color options per generator - Fixed crypto QR with universal/wallet mode toggle - Hero QR codes all point to qrmaster.net
This commit is contained in:
Timo Knuth
371
src/app/(marketing)/tools/crypto-qr-code/CryptoGenerator.tsx
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371
src/app/(marketing)/tools/crypto-qr-code/CryptoGenerator.tsx
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'use client';
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import React, { useState, useRef } from 'react';
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import Link from 'next/link';
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import { QRCodeSVG } from 'qrcode.react';
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import {
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Bitcoin,
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Download,
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Check,
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Sparkles,
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Wallet,
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} from 'lucide-react';
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import { Button } from '@/components/ui/Button';
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import { Input } from '@/components/ui/Input';
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import { Select } from '@/components/ui/Select';
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import { cn } from '@/lib/utils';
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// Brand Colors
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const BRAND = {
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paleGrey: '#EBEBDF',
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richBlue: '#1A1265',
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richBlueLight: '#2A2275',
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};
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// Crypto Options
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const CRYPTO_CURRENCIES = [
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{ value: 'bitcoin', label: 'Bitcoin (BTC)', color: '#F7931A', prefix: 'bitcoin:' },
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{ value: 'ethereum', label: 'Ethereum (ETH)', color: '#627EEA', prefix: 'ethereum:' },
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{ value: 'usdt', label: 'Tether (USDT)', color: '#26A17B', prefix: '' }, // Commonly ERC20/TRC20 - keeping raw for safety
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{ value: 'solana', label: 'Solana (SOL)', color: '#14F195', prefix: 'solana:' },
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];
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// QR Color Options
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const QR_COLORS = [
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{ name: 'Bitcoin Orange', value: '#F7931A' },
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{ name: 'Ethereum Blue', value: '#627EEA' },
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{ name: 'Tether Green', value: '#26A17B' },
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{ name: 'Classic Black', value: '#000000' },
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{ name: 'Dark Blue', value: '#1A1265' },
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{ name: 'Emerald', value: '#10B981' },
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{ name: 'Rose', value: '#F43F5E' },
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];
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// Frame Options
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const FRAME_OPTIONS = [
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{ id: 'none', label: 'No Frame' },
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{ id: 'scanme', label: 'Scan Me' },
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{ id: 'pay', label: 'Pay Now' },
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{ id: 'donate', label: 'Donate' },
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];
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export default function CryptoGenerator() {
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const [currency, setCurrency] = useState('bitcoin');
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const [address, setAddress] = useState('');
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const [amount, setAmount] = useState('');
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const [qrMode, setQrMode] = useState<'universal' | 'wallet'>('universal');
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const [qrColor, setQrColor] = useState('#F7931A');
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const [frameType, setFrameType] = useState('none');
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const qrRef = useRef<HTMLDivElement>(null);
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// Generate URL based on selected mode
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const getUrl = () => {
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if (!address.trim()) return 'https://www.qrmaster.net';
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const cleanAddr = address.trim();
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if (qrMode === 'wallet') {
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// Wallet Direct Mode - Uses crypto URI scheme
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// Only works when scanning FROM a wallet app (Coinbase, Trust Wallet, etc.)
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const prefixes: Record<string, string> = {
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bitcoin: 'bitcoin:',
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ethereum: 'ethereum:',
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solana: 'solana:',
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usdt: '', // USDT doesn't have a standard URI
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};
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const prefix = prefixes[currency] || '';
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if (!prefix) return cleanAddr; // USDT fallback
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let uri = `${prefix}${cleanAddr}`;
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if (amount) uri += `?amount=${amount}`;
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return uri;
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} else {
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// Universal Mode - Blockchain explorer links
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// Works with ANY phone camera
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switch (currency) {
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case 'bitcoin':
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return `https://blockchair.com/bitcoin/address/${cleanAddr}`;
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case 'ethereum':
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return `https://etherscan.io/address/${cleanAddr}`;
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case 'solana':
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return `https://solscan.io/account/${cleanAddr}`;
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case 'usdt':
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return `https://etherscan.io/token/0xdac17f958d2ee523a2206206994597c13d831ec7?a=${cleanAddr}`;
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default:
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return cleanAddr;
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}
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}
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};
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const handleDownload = async (format: 'png' | 'svg') => {
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if (!qrRef.current) return;
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try {
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if (format === 'png') {
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const { toPng } = await import('html-to-image');
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const dataUrl = await toPng(qrRef.current, { cacheBust: true, pixelRatio: 3 });
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const link = document.createElement('a');
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link.download = `${currency}-qr-code.png`;
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link.href = dataUrl;
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link.click();
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} else {
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const svgData = qrRef.current.querySelector('svg')?.outerHTML;
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if (svgData) {
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const blob = new Blob([svgData], { type: 'image/svg+xml;charset=utf-8' });
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const url = URL.createObjectURL(blob);
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const link = document.createElement('a');
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link.href = url;
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link.download = `${currency}-qr-code.svg`;
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link.click();
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}
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}
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} catch (err) {
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console.error('Download failed', err);
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}
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};
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const getFrameLabel = () => {
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const frame = FRAME_OPTIONS.find(f => f.id === frameType);
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return frame?.id !== 'none' ? frame?.label : null;
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};
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return (
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<div className="w-full max-w-5xl mx-auto px-4 md:px-6">
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{/* Main Generator Card */}
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<div className="bg-white rounded-3xl shadow-2xl shadow-slate-900/10 overflow-hidden border border-slate-100">
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<div className="grid lg:grid-cols-2">
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{/* LEFT: Input Section */}
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<div className="p-8 lg:p-10 space-y-8 border-r border-slate-100">
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{/* Crypto Details */}
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<div className="space-y-6">
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<h2 className="text-lg font-bold text-slate-900 flex items-center gap-2">
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<Wallet className="w-5 h-5 text-slate-900" />
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Wallet Details
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</h2>
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<div>
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<label className="block text-sm font-medium text-slate-700 mb-2">Currency</label>
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<Select
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value={currency}
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options={CRYPTO_CURRENCIES}
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onChange={(e) => {
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const val = e.target.value;
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setCurrency(val);
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const col = CRYPTO_CURRENCIES.find(c => c.value === val)?.color;
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if (col) setQrColor(col);
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}}
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className="h-12 w-full rounded-xl border-slate-200"
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/>
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</div>
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<div>
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<label className="block text-sm font-medium text-slate-700 mb-2">Wallet Address</label>
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<Input
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placeholder={`Enter ${currency} address`}
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value={address}
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onChange={(e) => setAddress(e.target.value)}
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className="h-12 text-base rounded-xl border-slate-200 focus:border-slate-900 focus:ring-slate-900 font-mono text-sm"
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/>
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</div>
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<div>
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<label className="block text-sm font-medium text-slate-700 mb-2">Amount (Optional)</label>
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<Input
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placeholder="0.00"
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type="number"
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value={amount}
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onChange={(e) => setAmount(e.target.value)}
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className="h-12 text-base rounded-xl border-slate-200 focus:border-slate-900 focus:ring-slate-900"
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/>
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</div>
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{/* QR Mode Toggle */}
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<div>
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<label className="block text-sm font-medium text-slate-700 mb-2">QR Code Mode</label>
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<div className="grid grid-cols-2 gap-2">
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<button
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onClick={() => setQrMode('universal')}
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className={cn(
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"py-3 px-4 rounded-xl text-sm font-medium transition-all border",
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qrMode === 'universal'
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? "bg-slate-900 text-white border-slate-900"
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: "bg-slate-50 text-slate-600 border-slate-200 hover:border-slate-300"
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)}
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>
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Universal (Web)
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</button>
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<button
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onClick={() => setQrMode('wallet')}
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className={cn(
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"py-3 px-4 rounded-xl text-sm font-medium transition-all border",
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qrMode === 'wallet'
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? "bg-slate-900 text-white border-slate-900"
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: "bg-slate-50 text-slate-600 border-slate-200 hover:border-slate-300"
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)}
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>
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Wallet Direct
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</button>
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</div>
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<p className="text-xs text-slate-500 mt-2">
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{qrMode === 'universal'
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? "Works with any phone camera. Opens blockchain explorer."
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: "Requires scanning from a wallet app. Enables direct payment."}
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</p>
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</div>
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</div>
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<div className="border-t border-slate-100"></div>
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{/* Design Options */}
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<div className="space-y-6">
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<h2 className="text-lg font-bold text-slate-900 flex items-center gap-2">
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<Sparkles className="w-5 h-5 text-slate-900" />
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Design Options
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</h2>
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{/* Color Picker */}
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<div>
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<label className="block text-sm font-medium text-slate-700 mb-3">QR Code Color</label>
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<div className="flex flex-wrap gap-2">
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{QR_COLORS.map((c) => (
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<button
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key={c.name}
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onClick={() => setQrColor(c.value)}
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className={cn(
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"w-9 h-9 rounded-full border-2 flex items-center justify-center transition-all hover:scale-110",
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qrColor === c.value ? "border-slate-900 ring-2 ring-offset-2 ring-slate-200" : "border-white shadow-md"
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)}
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style={{ backgroundColor: c.value }}
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aria-label={`Select ${c.name}`}
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title={c.name}
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>
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{qrColor === c.value && <Check className="w-4 h-4 text-white" strokeWidth={3} />}
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</button>
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))}
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</div>
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</div>
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{/* Frame Selector */}
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<div>
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<label className="block text-sm font-medium text-slate-700 mb-3">Frame Label</label>
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<div className="grid grid-cols-4 gap-2">
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{FRAME_OPTIONS.map((frame) => (
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<button
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key={frame.id}
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onClick={() => setFrameType(frame.id)}
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className={cn(
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"py-2.5 px-3 rounded-lg text-sm font-medium transition-all border",
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frameType === frame.id
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? "bg-slate-900 text-white border-slate-900"
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: "bg-slate-50 text-slate-600 border-slate-200 hover:border-slate-300"
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)}
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>
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{frame.label}
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</button>
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))}
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</div>
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</div>
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</div>
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</div>
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{/* RIGHT: Preview Section */}
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<div className="p-8 lg:p-10 flex flex-col items-center justify-center" style={{ backgroundColor: BRAND.paleGrey }}>
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{/* QR Card with Frame */}
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<div
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ref={qrRef}
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className="bg-white rounded-3xl shadow-xl p-8 flex flex-col items-center"
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style={{ minWidth: '320px' }}
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>
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{/* Frame Label */}
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{getFrameLabel() && (
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<div
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className="mb-5 px-8 py-2.5 rounded-full text-white font-bold text-sm tracking-widest uppercase shadow-md"
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style={{ backgroundColor: qrColor }}
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>
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{getFrameLabel()}
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</div>
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)}
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{/* QR Code */}
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<div className="bg-white">
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{address.trim() ? (
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<QRCodeSVG
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value={getUrl()}
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size={240}
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level="Q"
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includeMargin={false}
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fgColor={qrColor}
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/>
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) : (
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<div
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className="flex items-center justify-center border-2 border-dashed border-slate-200 rounded-xl"
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style={{ width: 240, height: 240 }}
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>
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<div className="text-center text-slate-400 p-6">
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<Wallet className="w-12 h-12 mx-auto mb-3 opacity-50" />
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<p className="text-sm font-medium">Enter wallet address</p>
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<p className="text-xs mt-1">to generate QR code</p>
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</div>
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</div>
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)}
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</div>
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{/* Info Preview */}
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<div className="mt-6 text-center max-w-[260px]">
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<h3 className="font-bold text-slate-900 text-lg flex items-center justify-center gap-2 truncate">
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<Bitcoin className="w-4 h-4 text-slate-400 shrink-0" />
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<span className="truncate capitalize">{currency}</span>
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</h3>
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<div className="text-xs text-slate-500 mt-1 truncate px-2">
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{address || 'Wallet Address'}
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</div>
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</div>
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</div>
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{/* Download Buttons */}
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<div className="flex items-center gap-3 mt-8">
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<Button
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onClick={() => handleDownload('png')}
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className="bg-slate-900 hover:bg-black text-white shadow-lg"
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>
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<Download className="w-4 h-4 mr-2" />
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Download PNG
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</Button>
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<Button
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onClick={() => handleDownload('svg')}
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variant="outline"
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className="border-slate-300 hover:bg-white"
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>
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<Download className="w-4 h-4 mr-2" />
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SVG
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</Button>
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</div>
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<p className="text-xs text-slate-500 mt-4 text-center">
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Scanning copies the wallet address or opens a crypto app.
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</p>
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</div>
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</div>
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</div>
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{/* Upsell Banner */}
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<div className="mt-8 bg-gradient-to-r from-slate-900 to-slate-700 rounded-2xl p-6 flex flex-col sm:flex-row items-center justify-between gap-4">
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<div className="text-white text-center sm:text-left">
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<h3 className="font-bold text-lg">Accept Crypto for Business?</h3>
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<p className="text-white/80 text-sm mt-1">
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Create professional, branded payment pages for your store.
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</p>
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</div>
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<Link href="/signup">
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<Button className="bg-white text-slate-900 hover:bg-slate-100 shrink-0 shadow-lg">
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Get Business Tools
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</Button>
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</Link>
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</div>
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</div>
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);
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}
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Block a user