@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&display=swap');
        
        :root {
            --primary: #3b82f6;
            --primary-glow: rgba(59, 130, 246, 0.6);
            --secondary: #10b981;
            --secondary-glow: rgba(16, 185, 129, 0.6);
            --accent: #a855f7;
            --accent-glow: rgba(168, 85, 247, 0.6);
            --dark: #0f172a;
            --dark-card: rgba(30, 41, 59, 0.7);
            --light: #f8fafc;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --bg-gradient: linear-gradient(135deg, #020617 0%, #0f172a 100%);
            --glass-border: rgba(255, 255, 255, 0.1);
        }

        body { 
            font-family: 'Nunito', sans-serif; 
            background: var(--bg-gradient); 
            margin: 0; 
            padding: 0;
            color: var(--text-main);
            overflow-x: hidden;
            line-height: 1.6;
            scroll-behavior: smooth;
        }

        /* 🎨 Neon Arka Plan Şekilleri */
        .bg-shape-1 { position: absolute; top: -10%; left: -5%; width: 500px; height: 500px; background: #3b82f6; border-radius: 50%; opacity: 0.15; filter: blur(90px); z-index: -1; animation: floatShape 10s infinite alternate;}
        .bg-shape-2 { position: absolute; top: 30%; right: -10%; width: 600px; height: 600px; background: var(--accent); border-radius: 50%; opacity: 0.15; filter: blur(100px); z-index: -1; animation: floatShape 12s infinite alternate-reverse;}
        .bg-shape-3 { position: absolute; bottom: 10%; left: 10%; width: 400px; height: 400px; background: var(--secondary); border-radius: 50%; opacity: 0.15; filter: blur(80px); z-index: -1; animation: floatShape 15s infinite alternate;}
        @keyframes floatShape { 0% { transform: translate(0,0) scale(1); } 100% { transform: translate(40px, 40px) scale(1.1); } }

        /* 🚀 Scroll Animasyon Sınıfları */
        .reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
        .reveal.active { opacity: 1; transform: translateY(0); }

        /* 📱 Navbar (Cam Efekti) - SABİTLENDİ VE KARIŞMA ÖNLENDİ */
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 5vw;
            background: rgba(15, 23, 42, 0.95); /* Arka plan solidleştirildi */
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 5px 30px rgba(0,0,0,0.5);
            position: fixed; /* Fixed yapıldı ki her cihazda kaya gibi dursun */
            top: 0;
            left: 0;
            width: 100%;
            box-sizing: border-box;
            z-index: 9999; /* Maksimum katman gücü, hiçbir şeyin altında ezilmez */
            border-bottom: 1px solid var(--glass-border);
            transition: all 0.3s ease;
        }

        .logo {
            font-size: 28px;
            font-weight: 900;
            color: var(--light);
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            letter-spacing: -0.5px;
            text-shadow: 0 0 15px rgba(255,255,255,0.2);
        }
        
        .logo span { animation: bounce 2s infinite; display: inline-block; color: #f59e0b; text-shadow: 0 0 20px #f59e0b;}
        @keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }

        .nav-links { display: flex; gap: 15px; align-items: center; }

        .btn {
            padding: 12px 24px;
            border-radius: 20px;
            font-weight: 900;
            font-size: 15px;
            text-decoration: none;
            transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn-outline { background: rgba(255,255,255,0.05); color: var(--light); border: 2px solid var(--glass-border); backdrop-filter: blur(10px); }
        .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,0.3); }

        .btn-primary { background: linear-gradient(135deg, #10b981, #059669); color: white; box-shadow: 0 8px 25px var(--secondary-glow); border: 1px solid #34d399; }
        .btn-primary:hover { transform: translateY(-4px) scale(1.02); box-shadow: 0 15px 35px var(--secondary-glow); }

        .btn-koc { background: linear-gradient(135deg, #3b82f6, #1d4ed8); color: white; box-shadow: 0 8px 25px var(--primary-glow); border: 1px solid #60a5fa;}
        .btn-koc:hover { transform: translateY(-4px) scale(1.02); box-shadow: 0 15px 35px var(--primary-glow); }

        /* ⚡ Hero Section */
        .hero {
            text-align: center;
            padding: 160px 20px 100px; /* Header fixed olduğu için üst padding artırıldı */
            max-width: 950px;
            margin: 0 auto;
            position: relative;
        }

        .badge {
            background: rgba(54, 126, 241, 0.15);
            color: #60a5fa;
            border: 1px solid rgba(59, 130, 246, 0.3);
            padding: 8px 22px;
            border-radius: 20px;
            font-weight: 900;
            font-size: 14px;
            display: inline-block;
            margin-bottom: 30px;
            letter-spacing: 2px;
            text-transform: uppercase;
            box-shadow: 0 0 20px var(--primary-glow);
            animation: pulseGlow 2s infinite alternate;
        }

        @keyframes pulseGlow { 0% { box-shadow: 0 0 10px rgba(59,130,246,0.2); } 100% { box-shadow: 0 0 25px rgba(59,130,246,0.6); } }

        .hero h1 {
            font-size: 65px;
            font-weight: 900;
            color: var(--light);
            margin: 0 0 30px 0;
            line-height: 1.1;
            letter-spacing: -1.5px;
            text-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        
        .hero h1 span {
            color: #f59e0b; /* Okunabilirliği artırmak için düz ve parlak renk yapıldı */
            display: inline-block;
            text-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
        }

        .hero p {
            font-size: 20px;
            color: var(--text-muted);
            font-weight: 600;
            margin: 0 auto 50px auto;
            max-width: 800px;
            line-height: 1.8;
        }

        .hero-actions { display: flex; gap: 25px; justify-content: center; flex-wrap: wrap; }
        .hero-actions .btn { padding: 20px 45px; font-size: 18px; border-radius: 30px; }

        /* 🧩 Tanıtım / Detay Bölümleri */
        .section-title { text-align: center; margin: 100px 0 60px; }
        .section-title h2 { font-size: 42px; font-weight: 900; color: var(--light); margin-bottom: 20px; letter-spacing: -1px;}
        .section-title p { color: var(--text-muted); font-size: 20px; max-width: 650px; margin: 0 auto; font-weight: 600;}

        /* ✨ Özellikler Grid (Neon Kartlar) */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 40px;
            padding: 0 5vw 100px;
            max-width: 1300px;
            margin: 0 auto;
        }

        .feature-card {
            background: var(--dark-card);
            backdrop-filter: blur(15px);
            padding: 45px 35px;
            border-radius: 35px;
            border: 1px solid var(--glass-border);
            box-shadow: 0 15px 35px rgba(0,0,0,0.3);
            transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 5px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0; transition: 0.4s;
        }

        .feature-card:hover { 
            transform: translateY(-15px); 
            box-shadow: 0 25px 50px rgba(0,0,0,0.5), 0 0 30px rgba(168, 85, 247, 0.15); 
            border-color: rgba(168, 85, 247, 0.3);
            background: rgba(30, 41, 59, 0.9);
        }
        .feature-card:hover::before { opacity: 1; }
        
        .f-icon { font-size: 50px; margin-bottom: 25px; background: rgba(255,255,255,0.05); width: 90px; height: 90px; display: flex; align-items: center; justify-content: center; border-radius: 25px; border: 1px solid var(--glass-border); text-shadow: 0 0 15px rgba(255,255,255,0.5); transition: 0.3s;}
        .feature-card:hover .f-icon { transform: scale(1.1) rotate(5deg); }
        .feature-card h3 { font-size: 24px; font-weight: 900; color: var(--light); margin-bottom: 15px; }
        .feature-card p { color: var(--text-muted); font-size: 16px; font-weight: 600; margin: 0; line-height: 1.7; }

        /* 🔬 Nasıl Çalışır (Detaylı Bilgi) */
        .info-section { 
            background: rgba(15, 23, 42, 0.8); 
            padding: 100px 5vw; 
            margin: 50px 0; 
            border-top: 1px solid var(--glass-border); 
            border-bottom: 1px solid var(--glass-border); 
            position: relative;
        }
        .info-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
        
        .info-text h3 { font-size: 38px; font-weight: 900; margin-bottom: 25px; color: var(--light); letter-spacing: -1px;}
        .info-text p { font-size: 18px; color: var(--text-muted); margin-bottom: 30px; font-weight: 600; line-height: 1.8;}
        .info-list { list-style: none; padding: 0; margin-top: 40px; }
        .info-list li { display: flex; gap: 20px; margin-bottom: 30px; align-items: flex-start; background: rgba(255,255,255,0.02); padding: 20px; border-radius: 20px; border: 1px solid rgba(255,255,255,0.05); transition: 0.3s;}
        .info-list li:hover { background: rgba(255,255,255,0.05); border-color: rgba(59, 130, 246, 0.3); transform: translateX(10px);}
        
        .info-list li span { 
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)); 
            color: white; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; 
            border-radius: 12px; font-weight: 900; flex-shrink: 0; font-size: 18px;
            box-shadow: 0 0 15px var(--primary-glow);
        }
        .info-list li div { font-size: 18px; color: var(--light); font-weight: 800; }
        .info-list li div small { display: block; color: var(--text-muted); font-weight: 600; font-size: 15px; margin-top: 8px; line-height: 1.6;}

        .info-image { 
            background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(168,85,247,0.1)); 
            border-radius: 40px; height: 550px; display: flex; align-items: center; justify-content: center; font-size: 120px; 
            border: 2px dashed rgba(168, 85, 247, 0.3); box-shadow: inset 0 0 50px rgba(168, 85, 247, 0.05);
            animation: floatShape 8s infinite alternate ease-in-out;
        }

        /* 📊 İstatistikler / Alt Banner */
        .stats-banner { background: #020617; padding: 100px 20px; text-align: center; margin-top: 100px; border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border);}
        .stats-grid { display: flex; justify-content: center; gap: 100px; flex-wrap: wrap; max-width: 1100px; margin: 0 auto; }
        .stat-item h4 { font-size: 65px; font-weight: 900; margin: 0; background: linear-gradient(135deg, #10b981, #34d399); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.4));}
        .stat-item p { font-size: 18px; font-weight: 800; color: var(--text-muted); margin: 10px 0 0 0; text-transform: uppercase; letter-spacing: 2px; }

        /* ❓ SSS (Sıkça Sorulan Sorular) */
        .faq-section { max-width: 900px; margin: 100px auto; padding: 0 20px; }
        .faq-item { background: var(--dark-card); backdrop-filter: blur(10px); border-radius: 25px; padding: 30px; margin-bottom: 25px; border: 1px solid var(--glass-border); box-shadow: 0 10px 25px rgba(0,0,0,0.2); transition: 0.3s;}
        .faq-item:hover { border-color: rgba(255,255,255,0.2); transform: scale(1.02); }
        .faq-item h4 { margin: 0 0 15px 0; font-size: 20px; font-weight: 900; color: var(--light); display: flex; align-items: center; gap: 12px; }
        .faq-item p { margin: 0; color: var(--text-muted); font-size: 16px; font-weight: 600; line-height: 1.7;}

        /* 🏁 Footer */
        footer { padding: 60px 20px 40px; text-align: center; background: #020617; margin-top: 80px; border-top: 1px solid rgba(255,255,255,0.05); }
        .footer-logo { font-size: 24px; font-weight: 900; color: var(--light); margin-bottom: 20px; letter-spacing: -0.5px;}
        footer p { color: var(--text-muted); font-size: 15px; font-weight: 600; margin-bottom: 30px;}
        .footer-links { margin-top: 20px; display: flex; justify-content: center; gap: 30px; flex-wrap: wrap;}
        .footer-links a { color: var(--primary); text-decoration: none; font-weight: 800; font-size: 15px; text-transform: uppercase; letter-spacing: 1px; transition: 0.3s;}
        .footer-links a:hover { color: var(--accent); text-shadow: 0 0 10px var(--accent-glow);}

        /* 📱 Responsive - MOBİLDE KARIŞMA ÖNLENDİ */
        @media (max-width: 900px) {
            header { flex-direction: column; gap: 15px; padding: 15px; }
            .nav-links { flex-wrap: wrap; justify-content: center; gap: 10px;}
            .nav-links .btn { font-size: 13px; padding: 10px 15px; }
            .hero { padding-top: 220px; } /* Mobilde header daha kalın olduğu için boşluk artırıldı */
            .hero h1 { font-size: 42px; }
            .info-container { grid-template-columns: 1fr; gap: 40px;}
            .info-image { height: 350px; }
            .stats-grid { gap: 50px; }
            .stat-item h4 { font-size: 50px; }
        }