:root{--kurumsal-mavi:#00aeef;--koyu-metin:#1f2d3d;--acik-metin:#7b8aa1;--arkaplan:#f8fafc;--cizgi:#e3ebf3;--kart:#fff}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:'Quicksand',sans-serif;background:var(--arkaplan);color:var(--koyu-metin);min-height:100vh;display:flex;flex-direction:column}a{text-decoration:none;color:inherit}.container{max-width:1280px;margin:0 auto;padding:0 24px}.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--cizgi)}.row{height:92px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center}.brand img{max-height:46px;max-width:220px}.logo-fallback{font-size:28px;font-weight:800;color:#12213c}.logo-fallback span{color:var(--kurumsal-mavi)}.main-nav{display:flex;align-items:center;gap:24px;flex:1;justify-content:center;overflow:auto hidden;scrollbar-width:none}.main-nav::-webkit-scrollbar{display:none}.main-nav 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