 /* Responsividade */
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            
            .nav-menu {
                position: fixed;
                top: 70px;
                right: -100%;
                flex-direction: column;
                background-color: var(--primary-blue);
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
                padding: 1rem 0;
            }
            
            .nav-menu.active {
                right: 0;
            }
            
            .nav-menu li {
                margin: 1.5rem 0;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
        }