/* Custom animations */
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0px); }
        }
        
        .floating {
            animation: float 6s ease-in-out infinite;
        }
        
        .gradient-text {
            background: linear-gradient(90deg, #3b82f6, #8b5cf6);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .course-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        .testimonial-card {
            transition: all 0.3s ease;
        }
        
        .testimonial-card:hover {
            transform: scale(1.05);
        }
        
        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }
        
        ::-webkit-scrollbar-thumb {
            background: #888;
            border-radius: 10px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: #555;
        }