/* Responsive Styles */
@media (max-width: 1200px) {
  .container {
    max-width: 1000px;
  }

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

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

@media (max-width: 1024px) {
  .nav {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-content h1 {
    font-size: 42px;
  }

  .hero-stats {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

  .equipment-showcase {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

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

  .timeline-item {
    padding-left: calc(50% + 20px);
  }

  .timeline-item:nth-child(even) {
    padding-right: calc(50% + 20px);
  }

  .equipment-detail-content {
    grid-template-columns: 1fr;
  }

  .equipment-detail-content.reverse {
    direction: ltr;
  }

  .equipment-detail-image {
    min-height: 250px;
  }

  .app-detail-content {
    grid-template-columns: 1fr;
  }

  .app-detail-content.reverse {
    direction: ltr;
  }

  .app-detail-image {
    min-height: 250px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-header h2 {
    font-size: 28px;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 80px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-content p {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

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

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

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

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

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

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

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

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

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    padding-left: 50px;
    padding-right: 0;
  }

  .timeline-item:nth-child(even) {
    padding-left: 50px;
    padding-right: 0;
  }

  .timeline-item::before {
    left: 12px;
  }

  .timeline-item:nth-child(even)::before {
    left: 12px;
    right: auto;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .header .container {
    height: 60px;
  }

  .logo {
    font-size: 18px;
  }

  .logo .icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .contact-info-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-content h1 {
    font-size: 26px;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .product-card .content {
    padding: 16px;
  }

  .contact-form {
    padding: 24px;
  }

  .equipment-main {
    height: 250px;
  }

  .equipment-sidebar {
    flex-direction: row;
  }

  .equipment-item {
    height: 150px;
  }
}

/* Mobile menu styles */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 51, 102, 0.98);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 30px;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  color: white;
  font-size: 24px;
  font-weight: 600;
}

.mobile-menu .close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  color: white;
  font-size: 32px;
  cursor: pointer;
}

/* Print styles */
@media print {
  .header,
  .hero,
  .footer,
  .contact-form {
    display: none;
  }

  body {
    color: black;
    background: white;
  }

  .section {
    padding: 20px 0;
  }
}