diff --git a/src/web/index.html b/src/web/index.html
index 47261d5..37c6375 100644
--- a/src/web/index.html
+++ b/src/web/index.html
@@ -258,7 +258,9 @@ async function loadSymbols() {
     onChange(value) {
       const item = allSymbols.find(s => s.symbol === value);
       if (!item) return;
-      document.getElementById('f-usdt').value = item.min_notional;
+      const usdtInput = document.getElementById('f-usdt');
+      usdtInput.value = item.min_notional;
+      usdtInput.min = item.min_notional;
       document.getElementById('f-min-label').textContent = `(min ${item.min_notional} USDT)`;
     },
   });
@@ -340,7 +342,10 @@ async function createBot() {
   const usdt_amount = parseFloat(document.getElementById('f-usdt').value);
   const profit_percent = parseFloat(document.getElementById('f-profit').value);
   const testnet = document.getElementById('f-testnet').value === 'true';
+  const usdtInput = document.getElementById('f-usdt');
+  const minNotional = parseFloat(usdtInput.min) || 0;
   if (!name || !symbol || !usdt_amount || !profit_percent) { alert('Tüm alanları doldurun'); return; }
+  if (usdt_amount < minNotional) { alert(`Minimum işlem miktarı ${minNotional} USDT`); usdtInput.focus(); return; }
   await api('POST', '/bots', { name, symbol, timeframe, usdt_amount, profit_percent, testnet });
   closeModal();
   document.getElementById('f-name').value = '';