/* =====================================================================
   AAGANERA — RESPONSIVE OVERRIDES
   Mobile-first breakpoints layered on top of the base design system.
   ===================================================================== */

/* ---------------------------------------------------------------------
   ≤ 1200px — condense mega menus, tighten grids
   --------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .mega-menu-services {
    width: 520px;
  }
  .service-groups {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .spec-strip .grid > div:nth-child(2n+1) {
    border-left: none;
  }
  .spec-strip .grid > div:nth-child(n+3) {
    border-top: 1px solid var(--gray-200);
  }

  .tabs {
    grid-template-columns: 1fr;
  }
  .tab-list {
    flex-direction: row;
    overflow-x: auto;
  }
  .tab-btn {
    border-bottom: none;
    border-right: 1px solid var(--gray-200);
    white-space: nowrap;
  }
  .tab-btn:last-child {
    border-right: none;
  }
  .tab-btn .tab-arrow {
    display: none;
  }
}

/* ---------------------------------------------------------------------
   ≤ 992px — tablet: collapse to mobile nav, stack split layouts
   --------------------------------------------------------------------- */
@media (max-width: 992px) {
  .container {
    padding-inline: var(--space-5);
  }

  .split,
  .split-60-40,
  .showcase {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .showcase.reverse .showcase-copy,
  .showcase.reverse .showcase-visual {
    order: 0;
  }

  .why-aside {
    position: static;
  }

  .timeline {
    grid-template-columns: repeat(3, 1fr);
    row-gap: var(--space-10);
  }
  .timeline::before {
    display: none;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

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

  /* --- Mobile navigation --- */
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--color-surface);
    flex-direction: column;
    justify-content: flex-start;
    overflow-y: auto;
    padding: var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: var(--z-overlay);
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0;
  }

  .nav-list > li {
    width: 100%;
    border-bottom: 1px solid var(--gray-100);
  }

  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: var(--space-5) var(--space-2);
    font-size: var(--text-base);
  }

  /* Mega menus become inline accordions on mobile */
  .mega-menu {
    position: static;
    transform: none !important;
    width: 100% !important;
    left: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
    border: none;
    padding: 0 0 var(--space-4) var(--space-2);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), padding var(--transition-base);
  }

  .has-dropdown.open .mega-menu {
    max-height: 1400px;
  }

  .product-card-grid {
    grid-template-columns: 1fr;
  }

  .service-groups {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }

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

/* ---------------------------------------------------------------------
   ≤ 768px — small tablet / large phone
   --------------------------------------------------------------------- */
@media (max-width: 768px) {
  h1 {
    font-size: var(--text-5xl);
  }

  h2 {
    font-size: var(--text-3xl);
  }

  .section {
    padding-block: var(--space-16);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .spec-strip .grid > div:nth-child(n+2) {
    border-left: none;
    border-top: 1px solid var(--gray-200);
  }

  .service-groups {
    grid-template-columns: 1fr;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .stat .stat-number {
    font-size: var(--text-4xl);
  }
}

/* ---------------------------------------------------------------------
   ≤ 480px — mobile
   --------------------------------------------------------------------- */
@media (max-width: 480px) {
  .container,
  .container-narrow {
    padding-inline: var(--space-4);
  }

  .btn {
    padding: 0.8rem 1.4rem;
    font-size: var(--text-sm);
  }

  .section-header {
    margin-bottom: var(--space-10);
  }

  .card {
    padding: var(--space-6);
  }

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

  .showcase-visual .mockup-body .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-hero {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .back-to-top {
    right: var(--space-4);
    bottom: var(--space-4);
    width: 42px;
    height: 42px;
  }
}