/* =============================================
   GM Online — Responsive Stylesheet
   ============================================= */

/* ---- Tablets (≤1024px) ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .mega-menu__grid { grid-template-columns: repeat(3,1fr); }
  .about-split { gap: 48px; }
  .service-detail__grid { grid-template-columns: 1fr; }
  .service-sidebar { position: static; }
  .brand-card { grid-template-columns: 1fr; gap: 28px; }
}

/* ---- Large tablets / small laptops (≤900px) ---- */
@media (max-width: 900px) {
  .stats-bar__inner { grid-template-columns: repeat(2,1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .about-split { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .about-stats-float { position: static; margin-top: 16px; display: inline-block; }
  .hero { padding: 120px 0 80px; }
  .hero__title { font-size: 2.8rem; }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
}

/* ---- Mobile (≤768px) ---- */
@media (max-width: 768px) {
  :root { --header-h: 64px; }

  .container { padding: 0 16px; }
  .section { padding: 72px 0; }
  .section--lg { padding: 80px 0; }

  /* Header */
  .header-top { display: none; }
  .navbar__menu {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px;
    transform: translateY(-110%);
    transition: transform var(--transition);
    z-index: 199;
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .navbar__menu.open { transform: translateY(0); }
  .nav-link { padding: 12px 16px; font-size: 1rem; border-radius: var(--radius-md); }

  /* Mega menu → simple list on mobile */
  .mega-menu {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    width: 100%;
    box-shadow: none;
    border: none;
    padding: 8px 0 8px 16px;
    background: transparent;
    display: none;
  }
  .has-dropdown.open .mega-menu { display: block; }
  .mega-menu__grid { grid-template-columns: 1fr; gap: 4px; }
  .mega-menu__cta { display: none; }
  .mega-item { padding: 10px 12px; font-size: 0.9rem; }

  .nav-toggle { display: flex; }
  .navbar__cta { display: none; }

  /* Nav toggle animation */
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Hero */
  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero__title { font-size: 2.2rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .hero__scroll { display: none; }

  /* Stats */
  .stats-bar__inner { grid-template-columns: 1fr 1fr; }
  .stat-item { padding: 28px 16px; }

  /* Sections */
  .section-header { margin-bottom: 40px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .service-features-list { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-main { padding: 48px 0 40px; }
  .footer-bottom__inner { flex-direction: column; text-align: center; }

  /* Portfolio */
  .portfolio-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .offices-grid { grid-template-columns: 1fr; }

  /* Contact form */
  .contact-form-wrap { padding: 24px; }

  /* Brand card */
  .brand-card { padding: 28px; }

  /* CTA */
  .cta-banner { padding: 72px 0; }
  .cta-banner__actions { flex-direction: column; align-items: center; }

  /* Page hero */
  .page-hero { padding: 60px 0 40px; }

  /* WA & back-to-top */
  .wa-float { bottom: 20px; right: 20px; width: 50px; height: 50px; font-size: 1.3rem; }
  .back-to-top { bottom: 82px; right: 20px; }
}

/* ---- Small mobile (≤480px) ---- */
@media (max-width: 480px) {
  .hero__title { font-size: 1.9rem; }
  h2 { font-size: 1.7rem; }
  .btn--lg { padding: 14px 24px; font-size: 0.95rem; }
  .stats-bar__inner { grid-template-columns: 1fr 1fr; }
  .stat-item { padding: 20px 12px; }
  .stat-number { font-size: 1.8rem; }
  .testimonial-card { padding: 28px 20px; }
  .hero__badge { font-size: 0.72rem; }
  .portfolio-filters { gap: 8px; }
  .filter-btn { padding: 6px 14px; font-size: 0.8rem; }
  .error-code { font-size: 5rem; }
}

/* ---- Print ---- */
@media print {
  .site-header, .site-footer, .wa-float, .back-to-top, .navbar, .hero__scroll { display: none; }
  body { background: #fff; color: #000; }
  .hero { min-height: auto; padding: 40px 0; }
  .hero__bg { display: none; }
}