@media (max-width: 1024px) {
  .topics-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-bar .container { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }

  #primary-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-blanco);
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    z-index: 250;
    overflow-y: auto;
  }
  #primary-nav.is-open { display: flex; }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }
  .nav-list > li { width: 100%; }
  .nav-list > li > a,
  .nav-list > li > .dropdown-btn {
    width: 100%;
    padding: 0.9rem 1rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-borde-suave);
    border-radius: 0;
  }
  .dropdown-menu {
    display: block;
    position: static;
    box-shadow: none;
    border: none;
    border-radius: 0;
    background: var(--color-fondo);
    padding-left: 1rem;
  }
  .has-dropdown .dropdown-menu { display: none; }
  .has-dropdown.open .dropdown-menu { display: block; }

  .header-inner { padding-top: 0.5rem; padding-bottom: 0.5rem; }

  .card-grid { grid-template-columns: 1fr; }
  .stage-grid { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 120px 1fr 50px; }
  .calc-row { grid-template-columns: 1fr; }
  .topics-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; padding: 2rem var(--container-pad); }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .values-grid { grid-template-columns: 1fr; }
  .hero { padding: 3rem 0 2.5rem; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .article-inner h2 { font-size: 1.2rem; }
  #cookie-banner { width: 94%; flex-direction: column; gap: 0.75rem; }
}

@media (max-width: 480px) {
  .topics-grid { grid-template-columns: 1fr; }
  .stats-bar .container { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 1.6rem; }
}

@media (min-width: 1440px) {
  :root { --container-max: 1300px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}