@media (max-width: 980px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .nav-bar { justify-content: space-between; }
    .brand-row { padding: 26px 0 30px; }
    .brand img { width: min(320px, 76vw); }
    .foundation-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .container { width: min(100% - 28px, var(--max-width)); }
    .social-strip { gap: 18px; }
    .brand-row { min-height: 250px; align-items: center; }
    .nav-bar { min-height: 82px; }
    .mobile-link, .accordion-trigger { font-size: 24px; }
    .accordion-panel > a, .nested-panel a { font-size: 19px; }
    .hero-placeholder { min-height: 540px; }
    .hero-copy { margin-left: 0; padding: 70px 24px; }
    .hero-copy h1 { font-size: 46px; }
    .hero-copy p { font-size: 17px; }
    .section-heading h2 { font-size: 36px; }
    .footer-grid { grid-template-columns: 1fr; }
}