diff --git a/docs/quality/uygulama-durumu.md b/docs/quality/uygulama-durumu.md
index fdf6916..f28c2d0 100644
--- a/docs/quality/uygulama-durumu.md
+++ b/docs/quality/uygulama-durumu.md
@@ -2218,3 +2218,9 @@ Browser QA, dinamik sekme yüklemesi sonrası günlük bülten başlığını do
 Headless browser kabulü artık giriş sonrası Günlük Bülten sekmesini dinamik olarak açıyor ve `Günlük İhale Bülteni` başlığını doğruluyor. Böylece İstanbul günü düzeltmesiyle birlikte sekme yükleme ve erişilebilir başlık regresyonu da otomatik izleniyor.
 
 Doğrulama: browser QA başarılı; günlük bülten, analitik, ICS, çıktı ve mobil kontrolleri aynı koşuda geçti.
+
+### 2026-09-06 · Örtük düğme gönderimlerinin kaldırılması
+
+Tüm JSX ekranlarında form dışında kalan düğmeler açık `type="button"` kullanacak şekilde standardize edildi. Filtre, gezinme, dışa aktarma, modal, pazar, bildirim ve yönetim eylemleri artık bir form kapsayıcısına taşınsa bile istemeden submit tetiklemiyor; gerçek form gönderimleri `type="submit"` olarak korunuyor.
+
+Doğrulama: 293 otomatik test, üretim derlemesi ve browser QA başarılı. QA akışı Günlük Bülten, Analitik, ICS, çıktı ve 390px mobil kontrollerini geçti.
diff --git a/src/components/AiSpecAnalyzerModal.jsx b/src/components/AiSpecAnalyzerModal.jsx
index 86ee827..d23b1de 100644
--- a/src/components/AiSpecAnalyzerModal.jsx
+++ b/src/components/AiSpecAnalyzerModal.jsx
@@ -371,7 +371,7 @@ export const AiSpecAnalyzerModal = () => {
         </div>
 
         <div className="bg-slate-50 p-4 border-t border-slate-200 flex justify-end">
-          <button
+          <button type="button"
             onClick={() => setIsAiSpecAnalyzerOpen(false)}
             className="bg-slate-800 hover:bg-slate-700 text-white font-bold text-xs px-6 py-2.5 rounded-xl transition-colors"
           >
diff --git a/src/components/KanbanBoard.jsx b/src/components/KanbanBoard.jsx
index 3620e20..a3d817e 100644
--- a/src/components/KanbanBoard.jsx
+++ b/src/components/KanbanBoard.jsx
@@ -139,7 +139,7 @@ export const KanbanBoard = () => {
                             {info.label}
                           </span>;
                         })()}
-                        <button
+                        <button type="button"
                           onClick={() => setActiveTenderDetail(t)}
                           className="text-slate-400 hover:text-blue-600 p-0.5"
                           aria-label={`${t.ikn} ihale detayını aç`}
diff --git a/src/components/LandingPage.jsx b/src/components/LandingPage.jsx
index 1acf3a4..c4a18c2 100644
--- a/src/components/LandingPage.jsx
+++ b/src/components/LandingPage.jsx
@@ -200,7 +200,7 @@ export const LandingPage = ({ onGiris }) => {
           <a href="#nasil" className="transition hover:text-white">Nasıl çalışır?</a>
           <a href="#rakamlar" className="transition hover:text-white">Rakamlarla</a>
         </nav>
-        <button onClick={onGiris} className="group flex items-center gap-2 rounded-xl bg-white px-5 py-2.5 text-sm font-black text-slate-900 transition hover:bg-cyan-300">
+        <button type="button" onClick={onGiris} className="group flex items-center gap-2 rounded-xl bg-white px-5 py-2.5 text-sm font-black text-slate-900 transition hover:bg-cyan-300">
           Giriş Yap <ArrowRight size={15} className="transition group-hover:translate-x-0.5" />
         </button>
       </header>
@@ -225,7 +225,7 @@ export const LandingPage = ({ onGiris }) => {
               fiyat analizini tek panelde toplar. Siz teklife odaklanın, takibi biz yapalım.
             </p>
             <div className="lp-hero-in mt-9 flex flex-col gap-3 sm:flex-row" style={{ animationDelay: '0.24s' }}>
-              <button onClick={onGiris} className="group flex items-center justify-center gap-2 rounded-xl bg-gradient-to-r from-cyan-400 to-blue-500 px-7 py-3.5 text-base font-black text-white shadow-xl shadow-cyan-500/25 transition hover:shadow-cyan-400/40 hover:brightness-110">
+              <button type="button" onClick={onGiris} className="group flex items-center justify-center gap-2 rounded-xl bg-gradient-to-r from-cyan-400 to-blue-500 px-7 py-3.5 text-base font-black text-white shadow-xl shadow-cyan-500/25 transition hover:shadow-cyan-400/40 hover:brightness-110">
                 Hemen Başla — Ücretsiz <ArrowRight size={17} className="transition group-hover:translate-x-1" />
               </button>
               <a href="#ozellikler" className="flex items-center justify-center gap-2 rounded-xl border border-white/15 bg-white/[0.05] px-7 py-3.5 text-base font-bold text-white/85 backdrop-blur transition hover:border-white/30 hover:bg-white/10">
@@ -329,7 +329,7 @@ export const LandingPage = ({ onGiris }) => {
             <CalendarDays size={34} className="mx-auto text-cyan-300" />
             <h2 className="mx-auto mt-5 max-w-2xl text-4xl font-black tracking-tight sm:text-5xl">Yarınki ilanlar sizi beklemeyecek.</h2>
             <p className="mx-auto mt-4 max-w-xl text-lg leading-8 text-white/55">Bugün girin, kriterlerinizi kurun; yarın sabah ilk bülteniniz hazır olsun.</p>
-            <button onClick={onGiris} className="group mx-auto mt-9 flex items-center gap-2 rounded-xl bg-gradient-to-r from-cyan-400 to-blue-500 px-8 py-4 text-lg font-black text-white shadow-xl shadow-cyan-500/30 transition hover:shadow-cyan-400/50 hover:brightness-110">
+            <button type="button" onClick={onGiris} className="group mx-auto mt-9 flex items-center gap-2 rounded-xl bg-gradient-to-r from-cyan-400 to-blue-500 px-8 py-4 text-lg font-black text-white shadow-xl shadow-cyan-500/30 transition hover:shadow-cyan-400/50 hover:brightness-110">
               Ücretsiz Giriş Yap <ArrowRight size={19} className="transition group-hover:translate-x-1" />
             </button>
           </div>
@@ -347,7 +347,7 @@ export const LandingPage = ({ onGiris }) => {
           <div className="flex flex-wrap items-center gap-x-6 gap-y-2 font-semibold">
             <a href="/gizlilik.html" className="transition hover:text-white">Gizlilik Politikası</a>
             <a href="/kullanim-kosullari.html" className="transition hover:text-white">Kullanım Şartları</a>
-            <button onClick={onGiris} className="transition hover:text-white">Giriş</button>
+            <button type="button" onClick={onGiris} className="transition hover:text-white">Giriş</button>
           </div>
         </div>
       </footer>
diff --git a/src/components/LeftSidebar.jsx b/src/components/LeftSidebar.jsx
index 007f206..50bc4e9 100644
--- a/src/components/LeftSidebar.jsx
+++ b/src/components/LeftSidebar.jsx
@@ -90,7 +90,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
             <Compass className="w-4 h-4 text-blue-600" /> Hızlı Erişim
           </span>
           {(detailedQueries.institution || detailedQueries.registration || selectedRegion || quickFilter !== 'all' || selectedSektorler.length || selectedCpvler.length || selectedCity || selectedAlimTuru || selectedKurumTipi) && (
-            <button
+            <button type="button"
               onClick={clearAllFilters}
               className="text-[11px] font-medium text-blue-600 hover:underline"
             >
@@ -103,7 +103,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
             const Icon = item.icon;
             const isSelected = quickFilter === item.id;
             return (
-              <button
+              <button type="button"
                 key={item.id}
                 onClick={() => {
                   setQuickFilter(item.id);
@@ -156,12 +156,12 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
                 className="bg-slate-50 hover:bg-slate-100 p-2.5 rounded-lg border border-slate-200 flex items-center justify-between text-xs transition-colors group"
               >
                 <div className="flex-1 min-w-0 pr-2">
-                  <button className="font-bold text-blue-800 underline text-left" onClick={()=>applySavedFilter(filter)} aria-label={`${filter.name} filtresini uygula`}>{filter.name}</button>
+                  <button type="button" className="font-bold text-blue-800 underline text-left" onClick={()=>applySavedFilter(filter)} aria-label={`${filter.name} filtresini uygula`}>{filter.name}</button>
                   <p className="text-[10px] text-slate-500 truncate mt-0.5">
                     👤 {filter.user} {filter.sehir && `• 📍 ${filter.sehir}`}
                   </p>
                 </div>
-                <button
+                <button type="button"
                   disabled={savingCount > 0} aria-label={`${filter.name} filtresini sil`} onClick={() => deleteSavedFilter(filter.id)}
                   title="Filtreyi Sil"
                   className="text-slate-400 hover:text-red-600 p-1 opacity-60 group-hover:opacity-100 transition-opacity"
@@ -173,7 +173,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
           </div>
         )}
 
-        <button
+        <button type="button"
           onClick={() => setActiveTab('smart_filter_builder')}
           className="w-full bg-blue-600 hover:bg-blue-500 text-white font-bold py-2 px-3 rounded-lg text-xs flex items-center justify-center gap-2 transition-colors shadow-xs"
         >
@@ -187,7 +187,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
         
         {/* Alım Türü */}
         <div>
-          <button
+          <button type="button"
             onClick={() => toggleSection('alimTuru')}
             className="w-full px-4 py-3 flex items-center justify-between text-xs font-bold text-slate-800 bg-slate-50/50 hover:bg-slate-100 transition-colors"
           >
@@ -219,7 +219,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
 
         {/* Sektörler */}
         <div>
-          <button
+          <button type="button"
             onClick={() => toggleSection('sektorler')}
             className="w-full px-4 py-3 flex items-center justify-between text-xs font-bold text-slate-800 bg-slate-50/50 hover:bg-slate-100 transition-colors"
           >
@@ -238,7 +238,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
                 className="w-full border border-slate-200 rounded-lg px-2 py-1.5 mb-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-blue-500/30"
               />
               <div className="max-h-56 overflow-y-auto space-y-1">
-              <button
+              <button type="button"
                 onClick={() => { setSelectedSektorler([]); setActiveTab('list'); }}
                 className={`w-full text-left px-2 py-1 rounded font-medium ${!selectedSektorler.length ? 'bg-blue-50 text-blue-700 font-bold' : 'text-slate-600 hover:bg-slate-50'}`}
               >
@@ -271,7 +271,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
 
         {/* CPV Kodu */}
         <div>
-          <button
+          <button type="button"
             onClick={() => toggleSection('cpv')}
             className="w-full px-4 py-3 flex items-center justify-between text-xs font-bold text-slate-800 bg-slate-50/50 hover:bg-slate-100 transition-colors"
           >
@@ -313,7 +313,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
                 className="w-full border border-slate-200 rounded-lg px-2 py-1.5 mb-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-blue-500/30"
               />
               <div className="max-h-56 overflow-y-auto space-y-1">
-              <button
+              <button type="button"
                 onClick={() => { setSelectedCpvler([]); setActiveTab('list'); }}
                 className={`w-full text-left px-2 py-1 rounded font-medium ${!selectedCpvler.length ? 'bg-blue-50 text-blue-700 font-bold' : 'text-slate-600 hover:bg-slate-50'}`}
               >
@@ -346,7 +346,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
 
         {/* Kurum Tipleri */}
         <div>
-          <button
+          <button type="button"
             onClick={() => toggleSection('kurumTipleri')}
             className="w-full px-4 py-3 flex items-center justify-between text-xs font-bold text-slate-800 bg-slate-50/50 hover:bg-slate-100 transition-colors"
           >
@@ -357,14 +357,14 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
           </button>
           {openSections.kurumTipleri && (
             <div className="p-3 space-y-1 text-xs max-h-48 overflow-y-auto">
-              <button
+              <button type="button"
                 onClick={() => { setSelectedKurumTipi(''); setActiveTab('list'); }}
                 className={`w-full text-left px-2 py-1 rounded font-medium ${!selectedKurumTipi ? 'bg-blue-50 text-blue-700 font-bold' : 'text-slate-600 hover:bg-slate-50'}`}
               >
                 Tüm Kurumlar
               </button>
               {INSTITUTION_TYPES_LIST.map(k => (
-                <button
+                <button type="button"
                   key={k}
                   onClick={() => { setSelectedKurumTipi(k); setActiveTab('list'); }}
                   className={`w-full text-left px-2 py-1 rounded truncate font-medium ${selectedKurumTipi === k ? 'bg-blue-50 text-blue-700 font-bold' : 'text-slate-600 hover:bg-slate-50'}`}
@@ -378,7 +378,7 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
 
         {/* İl Dağılımları */}
         <div>
-          <button
+          <button type="button"
             onClick={() => toggleSection('iller')}
             className="w-full px-4 py-3 flex items-center justify-between text-xs font-bold text-slate-800 bg-slate-50/50 hover:bg-slate-100 transition-colors"
           >
@@ -389,14 +389,14 @@ export const LeftSidebar = ({onOpenProductSearch} = {}) => {
           </button>
           {openSections.iller && (
             <div className="p-3 space-y-1 text-xs max-h-48 overflow-y-auto">
-              <button
+              <button type="button"
                 onClick={() => { setSelectedCity(''); setActiveTab('list'); }}
                 className={`w-full text-left px-2 py-1 rounded font-medium ${!selectedCity ? 'bg-blue-50 text-blue-700 font-bold' : 'text-slate-600 hover:bg-slate-50'}`}
               >
                 Tüm Şehirler
               </button>
               {CITIES_LIST.map(city => (
-                <button
+                <button type="button"
                   key={city}
                   onClick={() => { setSelectedCity(city); setActiveTab('list'); }}
                   className={`w-full text-left px-2 py-1 rounded font-medium ${selectedCity === city ? 'bg-blue-50 text-blue-700 font-bold' : 'text-slate-600 hover:bg-slate-50'}`}
diff --git a/src/components/SmartFilterBuilder.jsx b/src/components/SmartFilterBuilder.jsx
index c22da1e..4a71792 100644
--- a/src/components/SmartFilterBuilder.jsx
+++ b/src/components/SmartFilterBuilder.jsx
@@ -68,7 +68,7 @@ export const SmartFilterBuilder = () => {
             <p className="text-xs text-slate-500">Arama ölçütlerinizi kaydedin; soldaki filtre adına tıklayarak ihale listesine uygulayın. E-posta bildirimleri Yönetim → Mobil PWA bölümünden ayrıca kurulur.</p>
           </div>
         </div>
-        <button
+        <button type="button"
           onClick={() => setActiveTab('list')}
           className="bg-slate-800 hover:bg-slate-700 text-white font-semibold text-xs px-4 py-2 rounded-lg flex items-center gap-2 transition-colors shadow-xs"
         >
@@ -105,7 +105,7 @@ export const SmartFilterBuilder = () => {
               <div key={f.id} className="p-3 bg-slate-50 border border-slate-200 rounded-lg text-xs hover:bg-slate-100 transition-colors">
                 <div className="flex items-center justify-between font-bold text-slate-900">
                   <button type="button" className="text-blue-800 underline" onClick={()=>applySavedFilter(f)} aria-label={`${f.name} filtresini uygula`}>{f.name}</button>
-                  <button
+                  <button type="button"
                     disabled={savingCount > 0} aria-label={`${f.name} filtresini sil`} onClick={async()=>{setSuccessMessage('');await deleteSavedFilter(f.id);}}
                     className="text-slate-400 hover:text-red-600 text-xs"
                   >
@@ -117,7 +117,7 @@ export const SmartFilterBuilder = () => {
             ))}
           </div>
 
-          <button
+          <button type="button"
             onClick={() => setActiveTab('list')}
             className="w-full bg-slate-100 hover:bg-slate-200 text-slate-700 font-bold py-2.5 px-3 rounded-lg text-xs flex items-center justify-center gap-2 transition-colors border border-slate-200"
           >
diff --git a/src/components/TenderCard.jsx b/src/components/TenderCard.jsx
index 1d45e97..6744461 100644
--- a/src/components/TenderCard.jsx
+++ b/src/components/TenderCard.jsx
@@ -84,7 +84,7 @@ export const TenderCard = ({ tender }) => {
             <span className="flex items-center gap-1 text-slate-700 font-semibold truncate max-w-md">
               <Building2 className="w-3.5 h-3.5 text-slate-400 shrink-0" />
               <span className="truncate">{tender.kurum}</span>
-              <button
+              <button type="button"
                 onClick={(e) => { e.stopPropagation(); toggleFavoriteKurum(tender.kurum); }}
                 disabled={favoriteSaving || !tender.kurum?.trim()}
                 aria-busy={favoriteSaving} aria-pressed={Boolean(isFavKurum)}
diff --git a/src/components/TenderList.jsx b/src/components/TenderList.jsx
index 96866e6..1dd966e 100644
--- a/src/components/TenderList.jsx
+++ b/src/components/TenderList.jsx
@@ -172,7 +172,7 @@ export const TenderList = () => {
             <option value="distant">Tarihi Uzak Olanlar</option>
           </select>
 
-          <button
+          <button type="button"
             onClick={handleExportExcel} disabled={exporting || !filteredTenders.length}
             className="bg-emerald-600 hover:bg-emerald-500 text-white font-bold text-xs px-3.5 py-2 rounded-lg flex items-center gap-1.5 transition-colors shadow-xs shrink-0"
           >
@@ -218,7 +218,7 @@ export const TenderList = () => {
                 {gorunenTenders.length.toLocaleString('tr-TR')} / {filteredTenders.length.toLocaleString('tr-TR')} ihale gösteriliyor
               </div>
               {/* Gözlemci çalışmazsa elle yükleme yolu açık kalsın */}
-              <button
+              <button type="button"
                 onClick={dahaGoster}
                 className="mt-2 text-xs font-bold text-blue-600 hover:text-blue-700 hover:underline"
               >
diff --git a/src/components/TopNavigation.jsx b/src/components/TopNavigation.jsx
index bc08d52..0a09208 100644
--- a/src/components/TopNavigation.jsx
+++ b/src/components/TopNavigation.jsx
@@ -151,7 +151,7 @@ export const TopNavigation = () => {
           const isActive = bekleyen ? bekleyen === item.id : activeTab === item.id;
           const yukleniyor = bekleyen === item.id;
           return (
-            <button
+            <button type="button"
               key={item.id}
               data-tab={item.id}
               aria-current={isActive ? 'page' : undefined}
diff --git a/src/components/UrunAramaModal.jsx b/src/components/UrunAramaModal.jsx
index 68a02ad..2f4beb2 100644
--- a/src/components/UrunAramaModal.jsx
+++ b/src/components/UrunAramaModal.jsx
@@ -290,7 +290,7 @@ export const UrunAramaModal = () => {
                         )}
                         <span className="text-slate-400">{t.durum}</span>
                         {/^\d{4}\/\d+$/.test(String(t.ikn || '')) && (
-                          <button
+                          <button type="button"
                             onClick={() => { openSearchTender(t); setIsUrunAramaOpen(false); }}
                             className="font-bold text-indigo-700 hover:underline"
                           >
@@ -312,7 +312,7 @@ export const UrunAramaModal = () => {
 
               {sonuc.totalCount > SAYFA && (
                 <div className="flex items-center justify-center gap-3 pt-2">
-                  <button
+                  <button type="button"
                     disabled={durum.sayfa === 0 || durum.yukleniyor}
                     onClick={() => sorgula(submitted, durum.sayfa - 1)}
                     className="text-xs font-bold px-3 py-1.5 rounded-lg border border-slate-300 disabled:opacity-40"
@@ -322,7 +322,7 @@ export const UrunAramaModal = () => {
                   <span className="text-xs text-slate-500">
                     {durum.sayfa + 1} / {Math.ceil(sonuc.totalCount / SAYFA).toLocaleString('tr-TR')}
                   </span>
-                  <button
+                  <button type="button"
                     disabled={(durum.sayfa + 1) * SAYFA >= sonuc.totalCount || durum.yukleniyor}
                     onClick={() => sorgula(submitted, durum.sayfa + 1)}
                     className="text-xs font-bold px-3 py-1.5 rounded-lg border border-slate-300 disabled:opacity-40"
diff --git a/src/components/tools/AiModelSettings.jsx b/src/components/tools/AiModelSettings.jsx
index cffab28..07b8906 100644
--- a/src/components/tools/AiModelSettings.jsx
+++ b/src/components/tools/AiModelSettings.jsx
@@ -98,7 +98,7 @@ export const AiModelSettings = () => {
             <p className="text-xs text-indigo-200 mt-0.5">Şartname analizi ve AI özelliklerinde kullanılacak modeli ve yedek (fallback) sırasını belirleyin.</p>
           </div>
         </div>
-        <button
+        <button type="button"
           onClick={handleSave}
           className={`px-4 py-2.5 rounded-xl font-bold text-sm flex items-center gap-2 transition ${saved ? 'bg-emerald-500 text-white' : 'bg-white text-indigo-900 hover:bg-indigo-50'}`}
         >
@@ -127,11 +127,11 @@ export const AiModelSettings = () => {
                 className={`flex items-center gap-4 p-4 rounded-xl border ${idx === 0 ? 'border-indigo-300 bg-indigo-50/40 ring-1 ring-indigo-200' : 'border-slate-200 bg-slate-50/60'}`}
               >
                 <div className="flex flex-col items-center gap-1 w-8">
-                  <button onClick={() => move(idx, -1)} disabled={idx === 0} className="text-slate-400 hover:text-indigo-600 disabled:opacity-30">
+                  <button type="button" onClick={() => move(idx, -1)} disabled={idx === 0} className="text-slate-400 hover:text-indigo-600 disabled:opacity-30">
                     <ArrowUp className="w-4 h-4" />
                   </button>
                   <span className="text-xs font-black text-slate-400">{idx + 1}</span>
-                  <button onClick={() => move(idx, 1)} disabled={idx === chain.length - 1} className="text-slate-400 hover:text-indigo-600 disabled:opacity-30">
+                  <button type="button" onClick={() => move(idx, 1)} disabled={idx === chain.length - 1} className="text-slate-400 hover:text-indigo-600 disabled:opacity-30">
                     <ArrowDown className="w-4 h-4" />
                   </button>
                 </div>
@@ -155,11 +155,11 @@ export const AiModelSettings = () => {
 
                 <div className="flex items-center gap-2">
                   {idx !== 0 && (
-                    <button onClick={() => setPrimary(idx)} className="text-[11px] font-bold text-indigo-600 hover:text-indigo-800 border border-indigo-200 rounded-lg px-2.5 py-1.5">
+                    <button type="button" onClick={() => setPrimary(idx)} className="text-[11px] font-bold text-indigo-600 hover:text-indigo-800 border border-indigo-200 rounded-lg px-2.5 py-1.5">
                       Birincil yap
                     </button>
                   )}
-                  <button onClick={() => remove(idx)} disabled={chain.length <= 1} className="text-slate-400 hover:text-red-500 disabled:opacity-30 p-1.5">
+                  <button type="button" onClick={() => remove(idx)} disabled={chain.length <= 1} className="text-slate-400 hover:text-red-500 disabled:opacity-30 p-1.5">
                     <X className="w-4 h-4" />
                   </button>
                 </div>
@@ -178,7 +178,7 @@ export const AiModelSettings = () => {
           </div>
           <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-3">
             {available.map(m => (
-              <button
+              <button type="button"
                 key={m.id}
                 onClick={() => add(m.id)}
                 className="text-left p-4 rounded-xl border border-slate-200 hover:border-indigo-300 hover:bg-indigo-50/40 transition group"
diff --git a/src/components/tools/ApiWebhooks.jsx b/src/components/tools/ApiWebhooks.jsx
index f619b39..55b8c31 100644
--- a/src/components/tools/ApiWebhooks.jsx
+++ b/src/components/tools/ApiWebhooks.jsx
@@ -89,7 +89,7 @@ const ApiKeySession = () => {
 
   return (
     <div className="space-y-6 animate-fade-in">
-      {hata && <button disabled={busy || loading} onClick={yukle} className="px-4 py-2 border rounded-lg">Yeniden dene</button>}
+      {hata && <button type="button" disabled={busy || loading} onClick={yukle} className="px-4 py-2 border rounded-lg">Yeniden dene</button>}
       <div className="bg-linear-to-r from-slate-900 via-violet-950 to-indigo-900 text-white p-6 rounded-2xl shadow-lg border border-violet-800/40">
         <div className="flex items-center gap-3">
           <div className="w-12 h-12 rounded-2xl bg-violet-600 flex items-center justify-center shadow-md">
@@ -124,7 +124,7 @@ const ApiKeySession = () => {
             <code className="flex-1 bg-white border border-emerald-200 rounded-lg px-3 py-2 text-[11px] font-mono break-all">
               {yeniAnahtar.anahtar}
             </code>
-            <button onClick={() => kopyala(yeniAnahtar.anahtar)}
+            <button type="button" onClick={() => kopyala(yeniAnahtar.anahtar)}
               className="bg-emerald-600 hover:bg-emerald-500 text-white font-bold text-xs px-3 py-2 rounded-lg flex items-center gap-1.5 shrink-0">
               {kopyalandi ? <Check className="w-3.5 h-3.5" /> : <Copy className="w-3.5 h-3.5" />}
               {kopyalandi ? 'Kopyalandı' : 'Kopyala'}
@@ -167,7 +167,7 @@ const ApiKeySession = () => {
                     {k.son_kullanim ? `son kullanım: ${new Date(k.son_kullanim).toLocaleString('tr-TR')}` : 'hiç kullanılmadı'}
                   </p>
                 </div>
-                <button onClick={() => iptal(k.id)} disabled={busy || loading}
+                <button type="button" onClick={() => iptal(k.id)} disabled={busy || loading}
                   className="text-slate-400 hover:text-red-500 shrink-0" title="Anahtarı iptal et">
                   <Trash2 className="w-4 h-4" />
                 </button>
@@ -180,7 +180,7 @@ const ApiKeySession = () => {
           <input value={yeniAd} onChange={(e) => setYeniAd(e.target.value)}
             aria-label="Anahtar adı" placeholder="Anahtar adı (ör. ERP Entegrasyonu)" disabled={kilitli || busy || loading || !durum}
             className="min-w-0 flex-1 bg-slate-50 border border-slate-200 rounded-lg px-2.5 py-2 text-xs disabled:opacity-50" />
-          <button onClick={olustur} disabled={busy || loading || !durum || kilitli || (limit != null && durum.anahtarlar.length >= limit)}
+          <button type="button" onClick={olustur} disabled={busy || loading || !durum || kilitli || (limit != null && durum.anahtarlar.length >= limit)}
             className="bg-violet-600 hover:bg-violet-500 disabled:opacity-40 text-white font-bold text-xs px-4 rounded-lg flex items-center gap-1.5">
             {busy ? <Loader2 className="w-3.5 h-3.5 animate-spin" /> : <Plus className="w-3.5 h-3.5" />} Oluştur
           </button>
diff --git a/src/components/tools/BriefTercihi.jsx b/src/components/tools/BriefTercihi.jsx
index b400f50..4ec6983 100644
--- a/src/components/tools/BriefTercihi.jsx
+++ b/src/components/tools/BriefTercihi.jsx
@@ -34,9 +34,9 @@ function BriefPanel(){
   <h3 className="font-bold text-sm flex gap-2"><CalendarClock className="w-4 h-4"/>Haftalık Brief</h3>
   <p className="text-xs text-slate-500">Haftanın takipli ihaleleri ve geçen hafta sonuçlanan takipliler için özet tercihi. Gönderim, sunucu zamanlayıcısının ve ilgili e-posta/Telegram hizmetinin etkin olmasına bağlıdır.</p>
   <div className="flex gap-3 flex-wrap">
-   {value&&<button role="switch" aria-label="Haftalık özet gönderimi" aria-checked={!value.kapali} disabled={busy} onClick={()=>run(false)} className="border rounded px-3 py-2 text-xs">{value.kapali?'Haftalık özet kapalı':'Haftalık özet açık'}</button>}
-   <button disabled={busy||!value} onClick={()=>run(true)} className="border rounded px-3 py-2 text-xs">Önizle</button>
-   <button disabled={busy} onClick={()=>setAttempt(n=>n+1)} className="border rounded px-3 py-2 text-xs">Özet ayarını yenile</button>
+   {value&&<button type="button" role="switch" aria-label="Haftalık özet gönderimi" aria-checked={!value.kapali} disabled={busy} onClick={()=>run(false)} className="border rounded px-3 py-2 text-xs">{value.kapali?'Haftalık özet kapalı':'Haftalık özet açık'}</button>}
+   <button type="button" disabled={busy||!value} onClick={()=>run(true)} className="border rounded px-3 py-2 text-xs">Önizle</button>
+   <button type="button" disabled={busy} onClick={()=>setAttempt(n=>n+1)} className="border rounded px-3 py-2 text-xs">Özet ayarını yenile</button>
   </div>
   {busy&&<p role="status" className="text-xs">Haftalık özet işlemi sürüyor…</p>}
   {error&&<p role="alert" className="text-xs text-red-700">{error}</p>}
diff --git a/src/components/tools/CompetitorRadar.jsx b/src/components/tools/CompetitorRadar.jsx
index d0b1ebd..9309baf 100644
--- a/src/components/tools/CompetitorRadar.jsx
+++ b/src/components/tools/CompetitorRadar.jsx
@@ -59,7 +59,7 @@ export const CompetitorRadar = () => {
           </div>
         </div>
 
-        <button
+        <button type="button"
           onClick={() => setActiveTab('sozlesme')}
           className="bg-white/10 hover:bg-white/20 text-white font-bold text-xs px-4 py-2.5 rounded-xl border border-white/20 transition-colors flex items-center gap-2 shrink-0"
         >
@@ -120,7 +120,7 @@ export const CompetitorRadar = () => {
                     )}
                   </div>
                 </div>
-                <button
+                <button type="button"
                   onClick={() => addFromReal(f)}
                   disabled={competitorSaving || watched.has(f.name.trim().toLocaleLowerCase('tr-TR'))}
                   className="text-[11px] font-bold px-3 py-1.5 rounded-lg border border-indigo-200 text-indigo-700 hover:bg-indigo-50 disabled:opacity-40 shrink-0"
@@ -207,7 +207,7 @@ export const CompetitorRadar = () => {
 
               {/* Notification Toggles & Actions */}
               <div className="flex items-center gap-3 shrink-0">
-                <button
+                <button type="button"
                   disabled title="Rakip teklif bildirimleri henüz etkin değil"
                   className="text-xs font-extrabold px-3 py-1.5 rounded-xl border flex items-center gap-1.5 bg-slate-100 text-slate-400 border-slate-200"
                 >
@@ -215,7 +215,7 @@ export const CompetitorRadar = () => {
                   <span>Teklif uyarısı etkin değil</span>
                 </button>
 
-                <button
+                <button type="button"
                   disabled title="Rakip kazanım bildirimleri henüz etkin değil"
                   className="text-xs font-extrabold px-3 py-1.5 rounded-xl border flex items-center gap-1.5 bg-slate-100 text-slate-400 border-slate-200"
                 >
@@ -223,7 +223,7 @@ export const CompetitorRadar = () => {
                   <span>Kazanım uyarısı etkin değil</span>
                 </button>
 
-                <button
+                <button type="button"
                   disabled={competitorSaving} aria-label={`${comp.name} radardan çıkar`} onClick={() => removeCompetitor(comp.id)}
                   className="p-2 text-slate-400 hover:text-red-600 rounded-lg transition-colors"
                   title="Radardan Çıkar"
diff --git a/src/components/tools/KikDecisions.jsx b/src/components/tools/KikDecisions.jsx
index d92a642..c11dbe1 100644
--- a/src/components/tools/KikDecisions.jsx
+++ b/src/components/tools/KikDecisions.jsx
@@ -61,7 +61,7 @@ export const KikDecisions = () => {
             />
             <Search className="w-4 h-4 text-slate-400 absolute left-3 top-1/2 -translate-y-1/2" />
           </div>
-          <button
+          <button type="button"
             onClick={() => ara()}
             disabled={loading || !q.trim()}
             className="bg-amber-600 hover:bg-amber-500 disabled:opacity-40 text-white font-bold text-xs px-5 rounded-lg flex items-center gap-2"
@@ -74,7 +74,7 @@ export const KikDecisions = () => {
           <div className="flex gap-2 flex-wrap items-center">
             <span className="text-[11px] text-slate-400 font-semibold">Takibinizdeki idareler:</span>
             {oneriler.map((k) => (
-              <button key={k} onClick={() => { setQ(k); ara(k); }}
+              <button type="button" key={k} onClick={() => { setQ(k); ara(k); }}
                 className="text-[11px] bg-slate-100 hover:bg-slate-200 text-slate-700 px-2 py-1 rounded-md font-medium truncate max-w-[220px]">
                 {k}
               </button>
diff --git a/src/components/tools/McpRssKarti.jsx b/src/components/tools/McpRssKarti.jsx
index aebab84..36c86cb 100644
--- a/src/components/tools/McpRssKarti.jsx
+++ b/src/components/tools/McpRssKarti.jsx
@@ -24,7 +24,7 @@ export const McpRssKarti = () => {
         <div key={o.k} className="space-y-1">
           <div className="flex items-center justify-between">
             <p className="text-xs font-bold text-slate-800">{o.ad} <span className="font-normal text-slate-500">— {o.not}</span></p>
-            <button onClick={() => kopyala(o.k, o.kod)} className="text-[11px] flex items-center gap-1 border border-slate-200 rounded-lg px-2 py-1 hover:bg-slate-50">{kopya === o.k ? <Check className="w-3 h-3 text-emerald-600" /> : <Copy className="w-3 h-3" />} Kopyala</button>
+            <button type="button" onClick={() => kopyala(o.k, o.kod)} className="text-[11px] flex items-center gap-1 border border-slate-200 rounded-lg px-2 py-1 hover:bg-slate-50">{kopya === o.k ? <Check className="w-3 h-3 text-emerald-600" /> : <Copy className="w-3 h-3" />} Kopyala</button>
           </div>
           <pre className="overflow-x-auto rounded-lg bg-slate-900 text-slate-100 p-2 text-[11px]">{o.kod}</pre>
         </div>
@@ -32,7 +32,7 @@ export const McpRssKarti = () => {
       <div className="border-t border-slate-100 pt-3 space-y-1">
         <div className="flex items-center justify-between">
           <p className="text-xs font-bold text-slate-800 flex items-center gap-1"><Rss className="w-3.5 h-3.5 text-orange-500" /> RSS beslemesi <span className="font-normal text-slate-500">— Feedly, Outlook, Slack RSS, n8n… (il, sektor, q filtreleri)</span></p>
-          <button onClick={() => kopyala('rss', rss)} className="text-[11px] flex items-center gap-1 border border-slate-200 rounded-lg px-2 py-1 hover:bg-slate-50">{kopya === 'rss' ? <Check className="w-3 h-3 text-emerald-600" /> : <Copy className="w-3 h-3" />} Kopyala</button>
+          <button type="button" onClick={() => kopyala('rss', rss)} className="text-[11px] flex items-center gap-1 border border-slate-200 rounded-lg px-2 py-1 hover:bg-slate-50">{kopya === 'rss' ? <Check className="w-3 h-3 text-emerald-600" /> : <Copy className="w-3 h-3" />} Kopyala</button>
         </div>
         <pre className="overflow-x-auto rounded-lg bg-slate-900 text-slate-100 p-2 text-[11px]">{rss}</pre>
         <p className="text-[11px] text-slate-500">Sonuç ilanları beslemesi anahtarsız: <code>{origin}/api/feeds/sonuc.rss</code> (firma, idare, il filtreleri). Anahtarı <code>ih_live_ANAHTARINIZ</code> yerine yazın.</p>
diff --git a/src/components/tools/NotifySubscriptions.jsx b/src/components/tools/NotifySubscriptions.jsx
index 224d545..88bdf01 100644
--- a/src/components/tools/NotifySubscriptions.jsx
+++ b/src/components/tools/NotifySubscriptions.jsx
@@ -126,7 +126,7 @@ const SubscriptionForm = () => {
                   {a.deliveryStatus && <span className="block text-amber-700">{a.deliveryStatus.state==='uncertain'?'Gönderim sonucu belirsiz. Uygulama yöneticisinin sağlayıcı kaydını kontrol etmesi gerekiyor.':'E-posta gönderimi bekliyor.'}</span>}
                 </p>
               </div>
-              <button onClick={() => sil(a.id)} disabled={busy} className="text-slate-400 hover:text-red-500 shrink-0 mt-0.5" aria-label={`Aboneliği sil: ${ozet(a)}`} title="Sil">
+              <button type="button" onClick={() => sil(a.id)} disabled={busy} className="text-slate-400 hover:text-red-500 shrink-0 mt-0.5" aria-label={`Aboneliği sil: ${ozet(a)}`} title="Sil">
                 <Trash2 className="w-3.5 h-3.5" />
               </button>
             </div>
@@ -143,7 +143,7 @@ const SubscriptionForm = () => {
           <input value={site} onChange={(e) => setSite(e.target.value)}
             placeholder="firmasitesi.com"
             className="flex-1 bg-white border border-blue-200 rounded-lg px-2.5 py-2 text-xs" />
-          <button onClick={siteyiTara} disabled={taraniyor || !site.trim()}
+          <button type="button" onClick={siteyiTara} disabled={taraniyor || !site.trim()}
             className="bg-blue-600 hover:bg-blue-500 disabled:opacity-40 text-white font-bold text-xs px-3.5 rounded-lg flex items-center gap-1.5">
             {taraniyor ? <Loader2 className="w-3.5 h-3.5 animate-spin" /> : <Sparkles className="w-3.5 h-3.5" />}
             {taraniyor ? 'Taranıyor…' : 'Tara'}
@@ -163,7 +163,7 @@ const SubscriptionForm = () => {
                 <p className="text-[10px] text-blue-700 font-semibold">Önerilen konular — eklemek için tıklayın:</p>
                 <div className="flex flex-wrap gap-1.5">
                   {oneriler.map((k) => (
-                    <button key={k} onClick={() => konuEkle(k)}
+                    <button type="button" key={k} onClick={() => konuEkle(k)}
                       className="text-[11px] bg-white hover:bg-blue-100 border border-blue-300 text-blue-900 px-2 py-1 rounded-md font-medium">
                       + {k}
                     </button>
@@ -185,7 +185,7 @@ const SubscriptionForm = () => {
             {konular.map((k) => (
               <span key={k} className="text-[11px] bg-emerald-50 border border-emerald-300 text-emerald-900 px-2 py-1 rounded-md font-semibold flex items-center gap-1">
                 {k}
-                <button onClick={() => konuCikar(k)} className="text-emerald-700 hover:text-red-600"><X className="w-3 h-3" /></button>
+                <button type="button" onClick={() => konuCikar(k)} className="text-emerald-700 hover:text-red-600"><X className="w-3 h-3" /></button>
               </span>
             ))}
           </div>
@@ -196,14 +196,14 @@ const SubscriptionForm = () => {
             onKeyDown={(e) => { if (e.key === 'Enter') { konuEkle(ozelKonu); setOzelKonu(''); } }}
             placeholder="Kendi konunuzu yazın ve Enter'a basın"
             className="flex-1 bg-slate-50 border border-slate-200 rounded-lg px-2.5 py-2 text-xs" />
-          <button onClick={() => { konuEkle(ozelKonu); setOzelKonu(''); }}
+          <button type="button" onClick={() => { konuEkle(ozelKonu); setOzelKonu(''); }}
             className="bg-slate-800 hover:bg-slate-700 text-white font-bold text-xs px-3 rounded-lg">Ekle</button>
         </div>
 
         <p className="text-[10px] text-slate-400 pt-1">Hazır sektörler:</p>
         <div className="flex flex-wrap gap-1.5">
           {sektorListesi.map((s) => (
-            <button key={s} onClick={() => konuEkle(s)}
+            <button type="button" key={s} onClick={() => konuEkle(s)}
               className="text-[11px] bg-slate-100 hover:bg-slate-200 text-slate-700 px-2 py-1 rounded-md">
               + {s}
             </button>
@@ -213,7 +213,7 @@ const SubscriptionForm = () => {
 
       {/* Gelişmiş daraltma (isteğe bağlı) */}
       <div>
-        <button onClick={() => setGelismis(!gelismis)} className="text-[11px] font-bold text-slate-500 hover:text-slate-800 flex items-center gap-1">
+        <button type="button" onClick={() => setGelismis(!gelismis)} className="text-[11px] font-bold text-slate-500 hover:text-slate-800 flex items-center gap-1">
           {gelismis ? <ChevronUp className="w-3.5 h-3.5" /> : <ChevronDown className="w-3.5 h-3.5" />}
           Daha da daralt (isteğe bağlı) — varsayılan: tüm Türkiye
         </button>
@@ -235,7 +235,7 @@ const SubscriptionForm = () => {
         )}
       </div>
 
-      <button onClick={kaydet} disabled={busy || abonelikler===null || !konular.length}
+      <button type="button" onClick={kaydet} disabled={busy || abonelikler===null || !konular.length}
         className="w-full bg-emerald-600 hover:bg-emerald-500 disabled:opacity-40 text-white font-bold text-xs py-2.5 rounded-xl flex items-center justify-center gap-2">
         {busy ? <Loader2 className="w-3.5 h-3.5 animate-spin" /> : <Plus className="w-3.5 h-3.5" />}
         Bildirimi Kaydet
@@ -244,7 +244,7 @@ const SubscriptionForm = () => {
       {error && (
         <div role="alert" className="bg-red-50 border border-red-200 rounded-lg p-2.5 flex gap-2">
           <AlertTriangle className="w-3.5 h-3.5 text-red-600 shrink-0 mt-0.5" />
-          <p className="text-[11px] text-red-800">{error} <button disabled={busy} onClick={yukle} className="underline">Abonelikleri yeniden yükle</button></p>
+          <p className="text-[11px] text-red-800">{error} <button type="button" disabled={busy} onClick={yukle} className="underline">Abonelikleri yeniden yükle</button></p>
         </div>
       )}
 
diff --git a/src/components/tools/Pricing.jsx b/src/components/tools/Pricing.jsx
index 88427a4..aa5d817 100644
--- a/src/components/tools/Pricing.jsx
+++ b/src/components/tools/Pricing.jsx
@@ -62,10 +62,10 @@ export const Pricing = () => {
       {/* Aylık / Yıllık */}
       <div className="flex justify-center">
         <div className="bg-white border border-slate-200 rounded-xl p-1 inline-flex text-xs font-bold shadow-xs">
-          <button onClick={() => setYillik(true)} className={`px-4 py-2 rounded-lg transition-colors flex items-center gap-1.5 ${yillik ? 'bg-blue-600 text-white' : 'text-slate-600 hover:bg-slate-50'}`}>
+          <button type="button" onClick={() => setYillik(true)} className={`px-4 py-2 rounded-lg transition-colors flex items-center gap-1.5 ${yillik ? 'bg-blue-600 text-white' : 'text-slate-600 hover:bg-slate-50'}`}>
             Yıllık <span className={`text-[10px] px-1.5 py-0.5 rounded-full ${yillik ? 'bg-amber-400 text-slate-900' : 'bg-emerald-100 text-emerald-800'}`}>%17 indirim</span>
           </button>
-          <button onClick={() => setYillik(false)} className={`px-4 py-2 rounded-lg transition-colors ${!yillik ? 'bg-blue-600 text-white' : 'text-slate-600 hover:bg-slate-50'}`}>
+          <button type="button" onClick={() => setYillik(false)} className={`px-4 py-2 rounded-lg transition-colors ${!yillik ? 'bg-blue-600 text-white' : 'text-slate-600 hover:bg-slate-50'}`}>
             Aylık
           </button>
         </div>
@@ -107,7 +107,7 @@ export const Pricing = () => {
               </div>
             </div>
             {plan.iptalEdilebilir && (
-              <button
+              <button type="button"
                 onClick={() => setIptalAcik(true)}
                 className="text-xs font-bold text-red-600 hover:text-red-700 hover:bg-red-50 border border-red-200 px-3 py-2 rounded-xl flex items-center gap-1.5 transition-colors"
               >
@@ -183,7 +183,7 @@ export const Pricing = () => {
                 Mevcut planınız
               </div>
             ) : (
-              <button
+              <button type="button"
                 onClick={() => upgrade(p.id)}
                 disabled={!(yillik ? p.satinAlinabilirYillik : p.satinAlinabilir) || busy === p.id || !authUser}
                 title={!authUser ? 'Önce giriş yapın' : !(yillik ? p.satinAlinabilirYillik : p.satinAlinabilir) ? 'Ödeme altyapısı bağlanmadı' : ''}
diff --git a/src/components/tools/PwaSettings.jsx b/src/components/tools/PwaSettings.jsx
index 02f8b36..3e9ab6b 100644
--- a/src/components/tools/PwaSettings.jsx
+++ b/src/components/tools/PwaSettings.jsx
@@ -162,7 +162,7 @@ const PwaPanel = () => {
             </p>
           </div>
 
-          <button
+          <button type="button"
             onClick={refreshCacheStatus} disabled={cacheLoading}
             className="w-full bg-slate-100 hover:bg-slate-200 text-slate-800 font-bold text-xs py-2.5 rounded-xl border border-slate-200 transition-colors"
           >
@@ -192,17 +192,17 @@ const PwaPanel = () => {
           {permission === 'denied' ? (
             <div className="space-y-2 text-xs text-slate-700">
               <p>Bu site için bildirimler tarayıcı tarafından engellenmiş. Adres çubuğundaki site bilgileri veya tarayıcının site ayarlarından bildirim iznini değiştirin, ardından buraya dönün.</p>
-              <button onClick={refreshPermission} className="border rounded px-3 py-2">Bildirim iznini yeniden kontrol et</button>
+              <button type="button" onClick={refreshPermission} className="border rounded px-3 py-2">Bildirim iznini yeniden kontrol et</button>
             </div>
           ) : permission === 'unsupported' ? (
             <p className="text-xs text-slate-700">Bu tarayıcıda bildirim özelliği kullanılamıyor. Uygulama içindeki bildirim listesini kullanabilirsiniz.</p>
           ) : permission !== 'granted' ? (
-            <button onClick={handleEnablePush} disabled={reminderSaving || permissionBusy}
+            <button type="button" onClick={handleEnablePush} disabled={reminderSaving || permissionBusy}
               className="w-full bg-amber-500 hover:bg-amber-400 disabled:opacity-40 text-white font-bold text-xs py-2.5 rounded-xl">
               {permissionBusy?'İzin yanıtı bekleniyor…':'Bildirimlere İzin Ver'}
             </button>
           ) : (
-            <button onClick={() => notify('Test bildirimi', isQuietNow() || !reminderSettings.pushEnabled ? 'Tarayıcı bildirimi kapalı veya sessiz saatte — listeye eklendi.' : 'Tarayıcı bildirimi gösterim denemesi.')}
+            <button type="button" onClick={() => notify('Test bildirimi', isQuietNow() || !reminderSettings.pushEnabled ? 'Tarayıcı bildirimi kapalı veya sessiz saatte — listeye eklendi.' : 'Tarayıcı bildirimi gösterim denemesi.')}
               className="w-full bg-emerald-600 hover:bg-emerald-500 text-white font-bold text-xs py-2.5 rounded-xl">
               Test Bildirimi Gönder
             </button>
@@ -268,7 +268,7 @@ const PwaPanel = () => {
           <button type="button" disabled={emailSending} onClick={()=>setEmailConfigAttempt(n=>n+1)} className="text-xs underline">E-posta durumunu yenile</button>
           <p className="text-xs text-slate-600">E-posta gönderimlerini aşağıdaki bildirim aboneliklerinden yönetin. Tarayıcı bildirim seçimi ve sessiz saatler e-posta aboneliklerini kapatmaz.</p>
 
-          <button
+          <button type="button"
             onClick={sendTestEmail}
             disabled={emailSending || emailCfg !== true || !authUser}
             className="w-full bg-blue-600 hover:bg-blue-500 disabled:opacity-40 text-white font-bold text-xs py-2.5 rounded-xl flex items-center justify-center gap-2"
@@ -300,7 +300,7 @@ const PwaPanel = () => {
             İhaleist'i iOS, Android, Windows veya Mac cihazınıza bir tıklama ile uygulama olarak kurun.
           </p>
 
-          <button
+          <button type="button"
             onClick={handleInstallPwa}
             disabled={installed}
             className="w-full bg-cyan-500 hover:bg-cyan-400 disabled:bg-slate-700 text-slate-950 font-black text-xs py-3 rounded-xl flex items-center justify-center gap-2 shadow-md transition-colors cursor-pointer"
diff --git a/src/components/tools/RedFlags.jsx b/src/components/tools/RedFlags.jsx
index 041ed9e..02afcb9 100644
--- a/src/components/tools/RedFlags.jsx
+++ b/src/components/tools/RedFlags.jsx
@@ -102,7 +102,7 @@ export const RedFlags = () => {
                   </div>
                   <p className="text-xs text-slate-700 mt-1.5 leading-relaxed">{f.aciklama}</p>
                   {f.tender ? (
-                    <button
+                    <button type="button"
                       onClick={() => setActiveTenderDetail(f.tender)}
                       className="text-[11px] font-bold text-blue-700 hover:underline mt-1.5 text-left"
                     >
diff --git a/src/components/tools/TedTenders.jsx b/src/components/tools/TedTenders.jsx
index 0ea8fb4..bd9d7f1 100644
--- a/src/components/tools/TedTenders.jsx
+++ b/src/components/tools/TedTenders.jsx
@@ -65,7 +65,7 @@ export const TedTenders = () => {
       {/* Mod seçici */}
       <div className="flex gap-2 flex-wrap">
         {MODLAR.map((m) => (
-          <button
+          <button type="button"
             key={m.id}
             onClick={() => setMod(m.id)}
             className={`px-4 py-2 rounded-xl text-xs font-bold border transition-colors ${
@@ -75,7 +75,7 @@ export const TedTenders = () => {
             {m.label}
           </button>
         ))}
-        <button
+        <button type="button"
           onClick={() => yukle(mod)}
           disabled={loading}
           className="px-3 py-2 rounded-xl text-xs font-bold border border-slate-200 bg-white text-slate-600 hover:bg-slate-50 flex items-center gap-1.5 disabled:opacity-50"
diff --git a/src/components/tools/TurkeyHeatMap.jsx b/src/components/tools/TurkeyHeatMap.jsx
index 8901474..73ee552 100644
--- a/src/components/tools/TurkeyHeatMap.jsx
+++ b/src/components/tools/TurkeyHeatMap.jsx
@@ -61,7 +61,7 @@ export const TurkeyHeatMap = () => {
           const c = density.get(normProvince(il)) || 0;
           const { bg, fg } = heat(c, max);
           return (
-            <button
+            <button type="button"
               key={il}
               onClick={() => c && openCity(il)}
               disabled={!c}
diff --git a/src/components/tools/VatCalculator.jsx b/src/components/tools/VatCalculator.jsx
index 98d4249..2c708a0 100644
--- a/src/components/tools/VatCalculator.jsx
+++ b/src/components/tools/VatCalculator.jsx
@@ -58,7 +58,7 @@ export const VatCalculator = () => {
         
         {/* Mode Selector */}
         <div className="grid grid-cols-2 gap-3 p-1 bg-slate-100 rounded-xl">
-          <button
+          <button type="button"
             onClick={() => setMode('haric')}
             className={`py-2.5 rounded-lg text-xs font-extrabold transition-all ${
               mode === 'haric' ? 'bg-white text-blue-700 shadow-2xs' : 'text-slate-600 hover:text-slate-900'
@@ -66,7 +66,7 @@ export const VatCalculator = () => {
           >
             KDV Hariç ➔ KDV Dahil Hesapla
           </button>
-          <button
+          <button type="button"
             onClick={() => setMode('dahil')}
             className={`py-2.5 rounded-lg text-xs font-extrabold transition-all ${
               mode === 'dahil' ? 'bg-white text-blue-700 shadow-2xs' : 'text-slate-600 hover:text-slate-900'
@@ -130,7 +130,7 @@ export const VatCalculator = () => {
         <div className="bg-slate-900 text-white p-6 rounded-xl space-y-4 shadow-lg">
           <div className="flex items-center justify-between border-b border-slate-800 pb-3">
             <span className="font-bold text-xs uppercase tracking-wider text-slate-300">Hesaplama Sonucu</span>
-            <button
+            <button type="button"
               onClick={handleCopy}
               className="bg-slate-800 hover:bg-slate-700 text-blue-400 font-semibold px-3 py-1.5 rounded-lg text-xs flex items-center gap-1.5 transition-colors border border-slate-700"
             >