@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');
        * { font-family: 'Poppins', sans-serif; }
        .hero-gradient {
            background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 25%, #7c3aed 50%, #c026d3 75%, #e11d48 100%);
            background-size: 400% 400%;
            animation: gradientShift 8s ease infinite;
        }
        @keyframes gradientShift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        .glass-effect {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .premium-card {
            background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .premium-card:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: 0 35px 70px -12px rgba(0, 0, 0, 0.15);
        }
        .btn-primary {
            background: linear-gradient(135deg, #10b981 0%, #059669 100%);
            box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 40px rgba(16, 185, 129, 0.6);
        }
        .btn-secondary {
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
            transition: all 0.3s ease;
        }
        .btn-secondary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 40px rgba(99, 102, 241, 0.6);
        }
        .floating-animation {
            animation: float 6s ease-in-out infinite;
        }
        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }
        .feature-icon {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .price-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
            position: relative;
            overflow: hidden;
        }
        .price-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            animation: shine 3s infinite;
        }
        @keyframes shine {
            0% { left: -100%; }
            100% { left: 100%; }
        }
        .section-divider {
            background: linear-gradient(90deg, transparent, #e2e8f0, transparent);
            height: 1px;
            margin: 4rem 0;
        }
        .video-container {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
        }
        .video-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
            pointer-events: none;
            z-index: 1;
        }
        .step-number {
            background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
            box-shadow: 0 8px 25px rgba(251, 191, 36, 0.4);
        }
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        }
        .scroll-indicator {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 4px;
            background: linear-gradient(90deg, #10b981, #6366f1, #8b5cf6);
            z-index: 9999;
            transition: width 0.3s ease;
        }
        
        /* Lightbox için CSS Kodları */
.lightbox {
    display: none; 
    position: fixed; 
    z-index: 9999; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    overflow: auto; 
    background-color: rgba(0,0,0,0.85); 
}
.lightbox-content {
    position: relative;
    margin: 4% auto;
    padding: 0;
    width: 85%;
    max-width: 1100px;
    height: 85%;
}
.lightbox-content iframe {
    width: 100%;
    height: 100%;
    border: 2px solid #fff;
    border-radius: 8px;
}
.close-lightbox {
    position: absolute;
    top: -20px;
    right: -20px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    background: #000;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    line-height: 38px;
    text-align: center;
    transition: transform 0.2s ease;
}
.close-lightbox:hover {
    transform: scale(1.1);
}