.hero {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1576091160550-2173dba999ef?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1470&q=80');
            background-size: cover;
            background-position: center;
        }
        
        .testimonial-card {
            transition: transform 0.3s ease;
        }
        
        .testimonial-card:hover {
            transform: translateY(-5px);
        }
        
        .floating-whatsapp {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 99;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
            }
            70% {
                box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
            }
        }
        @keyframes fade-in {
    from { opacity: 0; transform: translateY(20px);}
    to { opacity: 1; transform: translateY(0);}
}
@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(40px);}
    to { opacity: 1; transform: translateY(0);}
}
@keyframes fade-in-down {
    from { opacity: 0; transform: translateY(-40px);}
    to { opacity: 1; transform: translateY(0);}
}
.animate-fade-in { animation: fade-in 1s ease; }
.animate-fade-in-up { animation: fade-in-up 1s ease; }
.animate-fade-in-down { animation: fade-in-down 1s ease; }