.text-center {
    text-align: center;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
}