diff --git a/app/api/trading/validate/route.js b/app/api/trading/validate/route.js
index 1fb7ae8..58aa42d 100644
--- a/app/api/trading/validate/route.js
+++ b/app/api/trading/validate/route.js
@@ -3,9 +3,9 @@ import { NextResponse } from 'next/server'
 export async function POST(request) {
   try {
     const body = await request.json()
-    const { symbol, side, amount, price, tradingMode = 'SPOT', fromCoin, toCoin } = body
+    const { symbol, side, amount, amountUSD, price, tradingMode = 'SPOT', fromCoin, toCoin } = body
 
-    console.log(`🔍 Validating trade: ${side} ${amount} ${symbol}`)
+    console.log(`🔍 Validating trade: ${side} ${amount} ${symbol} (USD: ${amountUSD})`)
 
     // Fetch real wallet balance from the wallet API
     let walletBalance
@@ -42,15 +42,16 @@ export async function POST(request) {
 
     if (tradingMode === 'SPOT') {
       if (side.toUpperCase() === 'BUY') {
-        // For BUY orders, need USDC or USD equivalent
-        const tradePrice = price || 166.5 // Use provided price or current SOL price
-        requiredBalance = amount * tradePrice
+        // For BUY orders, use the USD amount directly (not amount * price)
+        requiredBalance = amountUSD || (amount * (price || 166.5))
         requiredCurrency = 'USD'
         availableBalance = walletBalance.usdValue
+        
+        console.log(`💰 BUY validation: Need $${requiredBalance} USD, Have $${availableBalance}`)
       } else {
-        // For SELL orders, need the actual token
+        // For SELL orders, need the actual token amount
         requiredBalance = amount
-        requiredCurrency = fromCoin || symbol
+        requiredCurrency = fromCoin || symbol.replace('USD', '')
         
         // Find the token balance
         const tokenPosition = walletBalance.positions.find(pos => 
@@ -59,14 +60,16 @@ export async function POST(request) {
         )
         
         availableBalance = tokenPosition ? tokenPosition.amount : walletBalance.solBalance
+        console.log(`💰 SELL validation: Need ${requiredBalance} ${requiredCurrency}, Have ${availableBalance}`)
       }
     } else if (tradingMode === 'PERP') {
       // For perpetuals, only need margin
       const leverage = 10 // Default leverage
-      const tradePrice = price || 166.5
-      requiredBalance = (amount * tradePrice) / leverage
+      requiredBalance = (amountUSD || (amount * (price || 166.5))) / leverage
       requiredCurrency = 'USD'
       availableBalance = walletBalance.usdValue
+      
+      console.log(`💰 PERP validation: Need $${requiredBalance} USD margin, Have $${availableBalance}`)
     }
 
     console.log(`💰 Balance check: Need ${requiredBalance} ${requiredCurrency}, Have ${availableBalance}`)