/* Responsive */
@media (max-width: 1024px) {
    h2 { font-size: 2.4rem; }
    .hero-content h1 { font-size: 3.5rem; }
    .diff-grid { grid-template-columns: repeat(2, 1fr); }
    .about-container { gap: 3rem; }
}

@media (max-width: 768px) {
    .whatsapp-float {
        padding: 0.9rem;
        gap: 0;
        border-radius: 50%;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-float .wa-text {
        display: none;
    }
    
    .whatsapp-float i {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%; left: 0; width: 100%;
        background: rgba(10,10,10,0.95);
        backdrop-filter: blur(10px);
        padding: 2rem;
        gap: 2rem;
        border-bottom: 1px solid var(--clr-border);
    }
    .nav-links.active { display: flex; }
    .nav-links li { width: 100%; justify-content: center; }
    .mobile-menu-btn { display: block; }
    
    .hero-content h1 { font-size: 2.8rem; }
    .hero-actions { flex-direction: column; }
    
    .diff-grid, .stats-grid, .about-container, .contact-content {
        grid-template-columns: 1fr;
    }
    .differentials { margin-top: 0; }
    
    .stat-item:not(:last-child)::after {
        right: 20%; top: 100%; height: 1px; width: 60%;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}