/* ============================================================
   CORNERSTONE EQUIPMENT — RESPONSIVE STYLES
   ============================================================ */

@media (max-width: 992px) {
  :root {
    --gutter: 5vw;
  }

  .header-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: right 0.4s ease;
    z-index: 999;
  }

  .header-nav.open {
    right: 0;
  }

  .header-nav a {
    font-size: 1.1rem;
    padding: 12px 24px;
  }

  .menu-toggle {
    display: block;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-split {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 60px 0 40px;
    min-height: auto;
  }

  .hero-float-badge.top-right {
    right: 10px;
  }

  .hero-float-badge.bottom-left {
    left: 10px;
  }

  .stats-row {
    gap: 24px;
  }

  .categories-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --gutter: 6vw;
    --header-height: 68px;
  }

  .section {
    padding: 60px 0;
  }

  .hero {
    min-height: auto;
  }

  .header-logo img {
    height: 56px;
  }

  .hero-float-badge {
    padding: 8px 12px;
  }

  .hero-float-badge .badge-icon {
    width: 28px;
    height: 28px;
  }

  .hero-float-badge .badge-value {
    font-size: 0.85rem;
  }

  .stats-row {
    flex-direction: column;
    gap: 16px;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .process-timeline {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .modal-pricing-row {
    flex-direction: column;
    gap: 16px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .header-cta .header-phone {
    display: none;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }
}

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

  .specs-grid {
    grid-template-columns: 1fr;
  }
}