/* =========================================================
   DataLink Smart Core - Responsive
   ========================================================= */

@media (max-width: 1100px) {
  :root { --gutter: 1.5rem; }
}

@media (max-width: 900px) {
  :root { --gutter: 1.25rem; }
  .nav { display: none; }
  .cta-link { display: none; }
  .menu-toggle { display: flex; }
  .nav.open {
    display: flex;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: var(--s-5) var(--gutter);
    gap: var(--s-4);
  }
  .nav.open .nav-link { padding: var(--s-3) 0; font-size: 1rem; }
  .nav.open .cta-link {
    display: inline-flex;
    align-self: flex-start;
    margin-top: var(--s-3);
  }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: var(--s-5); }
}

@media (max-width: 600px) {
  :root { --gutter: 1rem; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero-stats { grid-template-columns: 1fr; }
}

@media print {
  .site-header, .site-footer, .back-to-top, .scroll-progress { display: none; }
  body { background: white; color: black; }
}