/* Responsive behaviors */
@media (min-width: 720px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; }
  .stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .logo-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .testimonial-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .team-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .contact-grid { grid-template-columns: 1.05fr 0.95fr; }
  .footer-grid { grid-template-columns: 1fr auto auto; align-items: center; }
  .nav-links { display: flex; }
}

@media (max-width: 860px) {
  .nav-links {
    position: absolute;
    top: 4.4rem;
    left: 1rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    align-items: start;
    padding: 1rem;
    border-radius: 18px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    backdrop-filter: blur(16px);
  }
  .nav-links.active { display: flex; }
  .nav-toggle { display: grid; }
}

@media (max-width: 540px) {
  .section { padding: 4rem 0; }
  .hero { padding-top: 2rem; }
  .stats-grid, .cards-grid, .team-grid, .logo-grid, .survey-grid, .solution-demo, .admin-auth-grid, .admin-controls-grid, .chart-grid { grid-template-columns: 1fr; }
  .page-card, .policy-card { padding: 1.1rem; }
  .captcha-placeholder { flex-direction: column; align-items: flex-start; }
  .bento-grid { grid-template-columns: 1fr; }
  .large-card, .tall-card, .wide-card { grid-column: auto; grid-row: auto; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .hero-media { min-height: 360px; }
  .search-panel { right: 0.5rem; top: 4.3rem; }
  .solution-hero { grid-template-columns: 1fr; }
}