/* ===================================================================
   Responsive
   =================================================================== */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { max-width: 480px; margin-inline: auto; width: 100%; }
  .security-layout { grid-template-columns: 1fr; }
  .dual-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border-strong);
    padding: 0.25rem clamp(1.25rem, 4vw, 3rem) 0.75rem;
  }
  .nav__links.nav__links--open { display: flex; }
  .nav__links a {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--border);
  }
  .nav__links a:last-child { border-bottom: none; }

  .nav__toggle { display: inline-flex; }
  .nav__actions .btn-ghost,
  .nav__actions .btn-primary { display: none; }

  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card, .feature-card--lg, .feature-card--md, .feature-card--full {
    grid-column: span 1;
    flex-direction: column;
    align-items: flex-start;
  }
  .layers-deco { margin-left: 0; margin-top: 1.5rem; }
  .steps { grid-template-columns: 1fr; }

  .pt-grid { grid-template-columns: repeat(3, 1fr); }

  .sticky-cta { display: block; }
  .footer { padding-bottom: 6.5rem; }
}

@media (max-width: 640px) {
  .gauges { grid-template-columns: repeat(2, 1fr); }
  .hero__sticker { width: 84px; height: 84px; font-size: 0.55rem; top: -16px; right: -10px; }
  .device-panel { transform: none; }
  .final-cta { margin-inline: 1rem; }

  .pt-grid { grid-template-columns: repeat(2, 1fr); }
  .pt-flow { gap: 0.5rem; }
  .pt-flow li { font-size: 0.75rem; padding: 0.45rem 0.75rem; }
}