html { scroll-behavior: smooth; }
        body { background-color: #f8fafc; color: #0f172a; transition: background-color 0.3s; }
        
        /* ÇOKLU DİL KONTROLÜ */
        body.lang-tr .en-text, body.lang-tr .ar-text { display: none !important; }
        body.lang-en .tr-text, body.lang-en .ar-text { display: none !important; }
        body.lang-ar .tr-text, body.lang-ar .en-text { display: none !important; }

        /* Animasyon */
        .scroll-reveal { opacity: 0; transform: translateY(40px); transition: all 0.9s cubic-bezier(0.16, 1, 0.3, 1); }
        .scroll-reveal.active { opacity: 1; transform: translateY(0); }

        /* Demo Kart Hover Efektleri */
        .demo-card { transition: all 0.5s ease; }
        .demo-card:hover { transform: translateY(-10px); box-shadow: 0 25px 50px -12px rgba(20, 184, 166, 0.25); border-color: #14b8a6; }
        .demo-card img { transition: transform 0.8s ease; }
        .demo-card:hover img { transform: scale(1.05); }