/* =============================================
   G5 POS — Responsive Stylesheet
   ============================================= */

/* ---------- Large Desktop (>1400px) ---------- */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* ---------- Laptop / Small Desktop (<=1200px) ---------- */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }

  h1 { font-size: 2.6rem; }
  h2 { font-size: 2rem; }

  .hero-content h1 {
    font-size: 2.8rem;
  }
}

/* ---------- Tablet Landscape (<=1024px) ---------- */
@media (max-width: 1024px) {
  section {
    padding: 60px 0;
  }

  .about-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .services-full-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

/* ---------- Tablet Portrait (<=768px) ---------- */
@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  section {
    padding: 50px 0;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.3rem; }

  .about-detail-grid {
    grid-template-columns: 1fr !important;
    gap: 30px !important;
  }

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

  /* Navigation */
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 30px 30px;
    gap: 5px;
    box-shadow: var(--shadow-xl);
    transition: right .3s ease;
    z-index: 1000;
  }

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

  .nav-menu a {
    color: var(--gray-800);
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 1rem;
  }

  .nav-menu a:hover,
  .nav-menu a.active {
    background: rgba(26, 115, 232, .08);
    color: var(--primary);
  }

  .lang-dropdown {
    margin-left: 0;
    margin-top: 15px;
  }

  .lang-toggle {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(26, 115, 232, .08);
  }

  .lang-menu {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
    max-height: 45vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .lang-dropdown.open .lang-menu {
    display: block;
  }

  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 999;
  }

  .nav-overlay.open {
    display: block;
  }

  /* Hero */
  .hero {
    min-height: 80vh;
  }

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

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-content p {
    font-size: 1rem;
    max-width: 100%;
  }

  .hero-buttons {
    justify-content: center;
  }

  .slider-arrows {
    display: none;
  }

  /* About Grid */
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 15px;
  }

  .about-card {
    padding: 25px 20px;
  }

  /* Products */
  .products-grid {
    grid-template-columns: 1fr 1fr;
    gap: 15px;
  }

  .product-card {
    padding: 25px 20px;
  }

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

  .stat-item .stat-number {
    font-size: 2.2rem;
  }

  /* Callback */
  .callback-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* Contact cards */
  .contact-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* Page Banner */
  .page-banner {
    padding: 130px 0 60px;
  }

  .page-banner h1 {
    font-size: 2rem;
  }

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

  /* Services */
  .services-full-grid {
    grid-template-columns: 1fr 1fr;
    gap: 15px;
  }

  /* Why Choose */
  .why-grid {
    grid-template-columns: 1fr 1fr;
    gap: 15px;
  }

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

/* ---------- Mobile (<=576px) ---------- */
@media (max-width: 576px) {
  :root {
    --header-height: 65px;
  }

  body {
    font-size: 15px;
  }

  .logo img {
    height: 40px;
  }

  section {
    padding: 40px 0;
  }

  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.2rem; }

  .container {
    padding: 0 15px;
  }

  .section-header {
    margin-bottom: 30px;
  }

  .btn {
    padding: 10px 24px;
    font-size: .9rem;
  }

  .btn-lg {
    padding: 12px 28px;
    font-size: .95rem;
  }

  /* Hero */
  .hero {
    min-height: 70vh;
  }

  .hero-content h1 {
    font-size: 1.6rem;
    line-height: 1.3;
  }

  .hero-content p {
    font-size: .9rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }

  .slider-dots {
    bottom: 20px;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .about-card {
    padding: 20px 18px;
  }

  .about-card .icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }

  /* Products */
  .products-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .product-card {
    padding: 20px 18px;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .stat-item {
    padding: 20px 10px;
  }

  .stat-item .stat-number {
    font-size: 1.8rem;
  }

  .stat-item .stat-label {
    font-size: .8rem;
  }

  /* Callback */
  .form-card {
    padding: 25px 20px;
  }

  /* Contact */
  .contact-cards {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .contact-card {
    padding: 30px 20px;
  }

  .map-container {
    min-height: 300px;
  }

  .map-container iframe {
    min-height: 300px;
  }

  /* Page Banner */
  .page-banner {
    padding: 110px 0 50px;
  }

  .page-banner h1 {
    font-size: 1.6rem;
  }

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

  .footer {
    padding: 40px 0 0;
  }

  /* Services */
  .services-full-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  /* Why */
  .why-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  /* Clients */
  .clients-track {
    gap: 20px;
  }

  .client-logo {
    width: 100px;
    height: 45px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}

/* ---------- Small Mobile (<=400px) ---------- */
@media (max-width: 400px) {
  .hero-content h1 {
    font-size: 1.4rem;
  }

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

  .stat-item .stat-number {
    font-size: 1.5rem;
  }
}