/* ============================================
   ALVERA ALÜMİNYUM — Responsive
   ============================================ */

/* Tablet Landscape */
@media (max-width: 1024px) {
  .products-grid,
  .services-grid,
  .projects-grid,
  .blog-grid,
  .similar-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .about-grid {
    gap: 40px;
  }

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

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

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

  .detail-sidebar {
    position: static;
  }

  .gallery-grid {
    columns: 2;
  }

  .mega-menu {
    min-width: 420px;
  }
}

/* Tablet Portrait / Large Mobile */
@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }

  .section {
    padding: 70px 0;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 360px;
    height: 100vh;
    background: var(--color-bg);
    flex-direction: column;
    align-items: stretch;
    padding: 80px 24px 40px;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition);
    overflow-y: auto;
    z-index: 999;
  }

  .nav.open {
    right: 0;
  }

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

  .nav-link {
    color: var(--color-text) !important;
    padding: 14px 8px;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .mega-menu {
    position: static;
    transform: none;
    min-width: auto;
    opacity: 1;
    visibility: visible;
    display: none;
    box-shadow: none;
    border: none;
    padding: 8px 0 8px 16px;
    background: transparent;
    grid-template-columns: 1fr;
  }

  .nav-item.open .mega-menu {
    display: grid;
  }

  .mega-menu a {
    padding: 10px 8px;
    font-size: 0.9rem;
  }

  .hamburger {
    display: flex;
  }

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

  .header-actions .header-icon-btn:not(.search-btn):not(.theme-btn) {
    display: none;
  }

  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

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

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

  .about-image {
    aspect-ratio: 16/10;
    max-height: 360px;
  }

  .about-image-accent {
    display: none;
  }

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

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

  .counter-item {
    padding: 24px 12px;
  }

  .products-grid,
  .services-grid,
  .projects-grid,
  .blog-grid,
  .similar-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

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

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

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

  .hero-nav {
    bottom: 28px;
  }

  .hero-arrow {
    width: 40px;
    height: 40px;
  }

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

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

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

  .gallery-grid {
    columns: 2;
  }

  .float-social {
    right: 12px;
    bottom: 80px;
  }

  .float-social a {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .cookie-banner {
    flex-direction: column;
    text-align: center;
    padding: 16px;
  }

  .page-hero {
    padding: 120px 0 60px;
  }

  .testimonial-card {
    padding: 32px 20px;
  }

  .cta-banner {
    padding: 70px 0;
  }
}

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

  .section {
    padding: 56px 0;
  }

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

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

  .counters .counter-item:last-child {
    grid-column: 1 / -1;
  }

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

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

  .filter-bar {
    gap: 6px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

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

  .gallery-grid {
    columns: 1;
  }

  .lightbox-prev {
    left: 8px;
  }

  .lightbox-next {
    right: 8px;
  }

  .toast-container {
    right: 12px;
    left: 12px;
  }

  .toast {
    max-width: 100%;
  }

  .refs-track {
    gap: 24px;
  }

  .ref-logo {
    width: 120px;
    height: 64px;
  }
}