/* Responsive Design */

/* Tablet (768px) */
@media (max-width: 1024px) {
  .nav-menu {
    gap: 20px;
  }

  .nav-link {
    font-size: 14px;
  }

  .nav-contact {
    gap: 10px;
  }

  .nav-phone {
    font-size: 13px;
  }

  .hero-title {
    font-size: 40px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 30px;
  }

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

  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .partners-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

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

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

  .cert-stats {
    gap: 20px;
  }

  .cert-stat {
    padding: 15px 20px;
    min-width: 100px;
  }

  .cert-number {
    font-size: 30px;
  }

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

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

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

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

  .footer-qr {
    justify-content: flex-start;
  }
}

/* Mobile (768px) */
@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .nav-container {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    gap: 0;
  }

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

  .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid var(--gray);
    width: 100%;
  }

  .nav-link::after {
    display: none;
  }

  .nav-contact {
    display: none;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero {
    min-height: 500px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-desc {
    font-size: 14px;
    margin-bottom: 20px;
  }

  .hero-cta {
    flex-direction: column;
    gap: 10px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }

  .section {
    padding: 50px 0;
  }

  .section-title {
    font-size: 26px;
  }

  .section-title-en {
    font-size: 14px;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .stat-item {
    padding: 15px;
  }

  .stat-number {
    font-size: 28px;
  }

  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

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

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

  .partner-card {
    height: 80px;
    padding: 12px;
  }

  .cert-stats {
    flex-direction: column;
    align-items: center;
  }

  .cert-stat {
    width: 100%;
    max-width: 300px;
  }

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

  .case-card img {
    height: 180px;
  }

  .capability-table th,
  .capability-table td,
  .service-table th,
  .service-table td {
    padding: 10px 15px;
    font-size: 14px;
  }

  .service-header {
    padding: 20px;
  }

  .service-title {
    font-size: 20px;
  }

  .service-body {
    padding: 20px;
  }

  .service-body p {
    font-size: 15px;
  }

  .warranty-packages {
    grid-template-columns: 1fr;
  }

  .package-card {
    padding: 15px;
  }

  .relocation-steps {
    grid-template-columns: 1fr;
  }

  .training-list ul {
    grid-template-columns: 1fr;
  }

  .footer {
    padding: 40px 0 15px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .footer-qr {
    justify-content: center;
    gap: 20px;
  }

  .qr-item img {
    width: 100px;
    height: 100px;
  }
}

/* Small Mobile (480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .hero-title {
    font-size: 26px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .section-title {
    font-size: 22px;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .stat-number {
    font-size: 24px;
  }

  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

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

  .partner-card {
    height: 70px;
    padding: 10px;
  }

  .capability-table,
  .service-table {
    font-size: 13px;
  }

  .capability-table th,
  .capability-table td,
  .service-table th,
  .service-table td {
    padding: 8px 10px;
  }

  .service-advantages li {
    font-size: 14px;
  }

  .step {
    padding: 15px;
  }

  .step h4 {
    font-size: 14px;
  }

  .step li {
    font-size: 13px;
  }

  .footer-contact p {
    font-size: 14px;
  }

  .qr-item img {
    width: 80px;
    height: 80px;
  }
}