/* ============================================
   responsive.css — Mobile-First Responsive Styles
   ============================================ */

/* === Tablet (max-width: 1024px) === */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }

  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

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

  .gallery-wide {
    grid-column: span 1;
  }

  .gallery-wide .image-placeholder {
    aspect-ratio: 1;
  }

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

  .testimonials-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .testimonials-grid .testimonial-card:last-child {
    grid-column: 1 / -1;
    max-width: 500px;
    margin: 0 auto;
  }

  .story-grid {
    gap: 48px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .modal-body {
    grid-template-columns: 1fr;
  }

  .modal-product-image {
    aspect-ratio: 16/9;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* === Tablet: Inquiry layout === */
@media (max-width: 1024px) {
  .inquiry-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .inquiry-team-col {
    position: static;
  }

  .inquiry-team-card {
    max-width: 360px;
    margin: 0 auto;
  }
}

/* === Mobile (max-width: 768px) === */
@media (max-width: 768px) {
  :root {
    --section-padding: 64px;
    --nav-height: 64px;
  }

  /* Navigation - Mobile */
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-links.active {
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: 1.25rem;
    font-weight: 600;
  }

  .hamburger {
    display: flex;
  }

  .btn-nav {
    display: none;
  }

  .lang-dropdown-menu {
    right: auto;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
  }

  .lang-dropdown.open .lang-dropdown-menu {
    transform: translateX(-50%) translateY(0);
  }

  /* Hero */
  .hero-content {
    padding: 0 20px;
  }

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

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

  /* Page Hero */
  .page-hero {
    padding: 120px 0 48px;
  }

  /* Products */
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
  }

  .filter-tabs {
    gap: 6px;
  }

  .filter-tab {
    padding: 6px 14px;
    font-size: 0.8125rem;
  }

  /* Forms */
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  /* About */
  .story-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .story-image {
    order: -1;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  /* Trust Bar */
  .trust-items {
    gap: 24px;
    justify-content: center;
  }

  .trust-item {
    font-size: 0.8125rem;
  }

  /* Testimonials */
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .testimonials-grid .testimonial-card:last-child {
    max-width: none;
  }

  /* FAQ */
  .faq-question {
    padding: 16px 20px;
    font-size: 0.9375rem;
  }

  .faq-answer p {
    padding: 0 20px 16px;
    font-size: 0.875rem;
  }

  /* CTA Banner */
  .cta-banner {
    padding: 48px 0;
  }

  /* Inquiry type tabs */
  .inquiry-type-tabs {
    gap: 6px;
  }

  .inquiry-type-tab {
    padding: 6px 12px;
    font-size: 0.75rem;
  }

  /* Advantages */
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .advantage-card {
    display: flex;
    text-align: left;
    gap: 20px;
    padding: 24px;
    background: var(--color-bg);
    border-radius: 16px;
  }

  .advantage-icon {
    min-width: 64px;
    width: 64px;
    height: 64px;
    margin: 0;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* Footer */
  .footer {
    padding: 48px 0 32px;
  }

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

  /* Modal */
  .modal-overlay {
    padding: 16px;
    align-items: flex-end;
  }

  .modal-content {
    max-height: 85vh;
    border-radius: 20px 20px 0 0;
  }

  .modal-body {
    grid-template-columns: 1fr;
  }

  .modal-product-image {
    aspect-ratio: 16/10;
    border-radius: 20px 20px 0 0;
  }

  .modal-product-details {
    padding: 24px 20px;
  }

  .modal-meta {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .meta-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    padding: 8px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }

  .meta-item:last-child {
    border-bottom: none;
  }

  /* Section spacing */
  .section-header {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  .section-subtitle {
    font-size: 1rem;
  }

  /* Map */
  .map-section {
    height: 280px;
  }
}

/* === Small Mobile (max-width: 480px) === */
@media (max-width: 480px) {
  :root {
    --section-padding: 48px;
  }

  .container {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .stat-number {
    font-size: 2rem;
  }

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

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

  .btn {
    padding: 12px 24px;
    font-size: 0.9375rem;
  }

  .modal-small {
    padding: 32px 20px;
  }
}

/* === Large Desktop (min-width: 1440px) === */
@media (min-width: 1440px) {
  :root {
    --container-width: 1320px;
    --section-padding: 160px;
  }

  .hero-title {
    font-size: 5rem;
  }

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