/* ═══════════════════════════════════════════════════════════
   HVJ INFRA MECH — Responsive rules
   Desktop ≥1200 · Laptop 992–1199 · Tablet 768–991 · Mobile <768
   ═══════════════════════════════════════════════════════════ */

/* ─── Laptop ─── */
@media (max-width: 1199.98px) {
  .section { padding: 90px 0; }
  .masonry { columns: 2 300px; }
  .navbar-nav .nav-link { margin: 0 6px; }
}

/* ─── Tablet ─── */
@media (max-width: 991.98px) {
  html { scroll-padding-top: 76px; }
  .section { padding: 76px 0; }
  .hero { min-height: 92vh; }
  .hero-title { max-width: 100%; }

  .process-timeline { grid-template-columns: repeat(2, 1fr); gap: 34px 22px; }
  .process-timeline::before { display: none; }

  .stats-band { padding: 38px 20px; margin-top: 70px; }
  .about-badge { right: 6px; bottom: -18px; padding: 12px 16px; }

  .footer-bottom { justify-content: center; text-align: center; }
}

/* ─── Mobile ─── */
@media (max-width: 767.98px) {
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 40px; }

  .hero-content { padding-top: 120px; padding-bottom: 100px; }
  .hero-eyebrow { font-size: 0.7rem; letter-spacing: 0.2em; gap: 8px; }
  .hero-eyebrow .tick { width: 28px; }
  .hero-sub { font-size: 1.02rem; }
  .hero-actions .btn { width: 100%; justify-content: center; text-align: center; }
  .scroll-indicator { display: none; }

  .about-media { grid-template-columns: 1fr; }
  .img-a, .img-b, .img-c { aspect-ratio: 16 / 9; }
  .about-badge { position: static; margin-top: 4px; justify-content: center; }

  .stat-label { font-size: 0.72rem; }

  .masonry { columns: 1; }
  .p-item figcaption { opacity: 1; padding: 16px; }
  .p-item figcaption h3 { transform: none; font-size: 0.96rem; }
  .portfolio-filters { gap: 8px; }
  .filter-btn { padding: 8px 16px; font-size: 0.8rem; }

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

  .cta-section { padding: 96px 0; }

  .inquiry-form { padding: 26px 20px; }

  .lightbox { padding: 70px 12px; }
  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }
  .lb-prev, .lb-next { width: 44px; height: 44px; }

  #backToTop { right: 16px; bottom: 16px; }
}

/* ─── Small mobile ─── */
@media (max-width: 419.98px) {
  .brand-text strong { font-size: 0.9rem; }
  .brand-text small { font-size: 0.55rem; }
  .hero-title { font-size: 2.3rem; }
}