Build a Crypto Tax Calculator with AI

Build a crypto tax calculator as a static HTML/CSS/JS site. Dark theme with background #0a0a0f, surfaces #12121a, borders #1a1a2a, accent color #f7931a. All computation is client-side with no external requests. Define `const TAX_BRACKETS_US = [{ minIncome, maxIncome, shortTermRate, longTermRate }]` covering all 2025 US federal brackets for single filers. Define `const SAMPLE_TRANSACTIONS = [{ id, date, type ("buy"|"sell"|"receive"|"send"|"swap"|"staking_reward"|"airdrop"), asset, amount, priceUsd, feesUsd, notes }]` with 20 realistic transactions across BTC, ETH, SOL, and MATIC covering 2024-2025. Layout: Header "CryptoTax Calc" with tax year selector (2024, 2025) and accounting method selector (FIFO, LIFO, HIFO, Specific ID). Main area: left column (transaction entry and import) and right column (live results summary). Transaction table: sortable by date, asset, or amount. Each row: date, type badge (Buy=blue, Sell=orange, Receive=green, Send=gray, Swap=purple, Reward=#f7931a), asset ticker, amount, USD value at time, fees, and computed gain/loss column (populated only for taxable events). Inline edit and delete per row. "Add Transaction" button opens a form modal. Tax lot matching: implement all three methods. - FIFO: use oldest lots first - LIFO: use newest lots first - HIFO: use highest cost-basis lots first For each sell/swap/spend event, show matched lots in a tooltip or expandable row: `{ date acquired, amount used, cost basis, proceeds, gain/loss, term (short/long based on >365 days held) }`. Results sidebar (sticky): Summary cards showing — Total Short-Term Gains, Total Long-Term Gains, Total Losses, Net Taxable Gain, Estimated Federal Tax (based on filing status input and income input), Loss Harvest Opportunities (unrealized losses in current holdings). Show a donut chart using SVG arcs for short-term vs long-term breakdown. Tax-loss harvesting panel: Show current holdings (from buy transactions minus sells) with unrealized gain/loss at `const CURRENT_PRICES = { BTC: 97500, ETH: 3200, SOL: 185, MATIC: 0.85 }`. Highlight in red any holding with unrealized loss — "Harvest $X in losses before Dec 31". Export section: "Download CSV" button that generates a properly formatted capital gains report with all columns for manual tax filing. "Download Form 8949 Preview" generates a text-formatted list matching IRS Form 8949 columns. Disclaimer banner: "This calculator is for educational purposes only. Consult a qualified tax professional before filing." SEO: title, meta description, OG tags, JSON-LD WebApplication schema. Read the guide at https://accessagent.ai/api/guide and follow it to deploy the site to AccessAgent.ai. My email is [your@email.com].

Update my crypto tax calculator with the following changes: [describe — e.g., "Add transaction: sold 0.5 BTC on 2025-03-15 at $89,000, fees $12", "Update CURRENT_PRICES: BTC to 102000, ETH to 3800, SOL to 210", "Add 2025 US tax brackets update", "Add new asset: ARB with 3 buy transactions", "Change accounting method default to HIFO"]. Update SAMPLE_TRANSACTIONS and CURRENT_PRICES constants and redeploy the site.