/* ============================================
   MCF Safety Belts - Responsive Design
   ============================================ */

/* --- Tablet (< 992px) --- */
@media (max-width: 991px) {
  :root {
    --font-size-4xl: 2.25rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.25rem;
    --space-4xl: 64px;
    --space-3xl: 48px;
  }

  /* Header */
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-dark);
    flex-direction: column;
    justify-content: flex-start;
    padding: 80px var(--space-lg) var(--space-lg);
    transition: right var(--transition-slow);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-item > a {
    padding: var(--space-md);
    font-size: var(--font-size-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 0;
    padding: 0;
    display: none;
  }

  .has-dropdown.open .dropdown {
    display: block;
  }

  .dropdown a {
    color: rgba(255, 255, 255, 0.7);
    padding-left: var(--space-xl);
  }

  .dropdown a:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
  }

  .header-actions .btn {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

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

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

  /* Sectors */
  .sectors-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  /* Content */
  .content-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .content-grid.reverse {
    direction: ltr;
  }

  /* Services */
  .services-list {
    grid-template-columns: 1fr;
  }

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

  /* Certs */
  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom .container {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .footer-legal {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* --- Mobile (< 576px) --- */
@media (max-width: 575px) {
  :root {
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.125rem;
    --space-4xl: 48px;
    --space-3xl: 32px;
    --container-padding: 16px;
  }

  /* Hero */
  .hero {
    min-height: 60vh;
  }

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

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

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

  .stat-number {
    font-size: var(--font-size-3xl);
  }

  /* Sectors */
  .sectors-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .sector-card {
    padding: var(--space-md) var(--space-sm);
  }

  .sector-icon {
    width: 36px;
    height: 36px;
  }

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

  /* Certs */
  .certs-grid {
    grid-template-columns: 1fr;
  }

  .certs-row {
    gap: var(--space-md);
  }

  .cert-logo {
    height: 40px;
  }

  /* Photo grid */
  .photo-grid {
    grid-template-columns: 1fr;
  }

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

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  /* Lang switch */
  .lang-switch {
    display: none;
  }
}