@media (max-width: 900px) {
    .hero-grid,
    .split-grid,
    .detail-grid,
    .info-grid,
    .cards-grid,
    .stats-grid,
    .footer-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .navbar {
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: inline-flex;
        padding: 0.8rem 1rem;
        border-radius: 999px;
        border: 1px solid var(--border);
        background: #fff;
    }

    .main-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding-top: 1rem;
    }

    .main-nav.is-open {
        display: flex;
    }

    .topbar,
    .cta-row {
        flex-direction: column;
        align-items: flex-start;
    }
}