/* ============================================================
   CLB Ingeniería — 3. Responsive
   Breakpoints: 1180 / 980 / 760 / 560
   ============================================================ */

@media (max-width: 1180px) {
  :root { --section-pad: 72px; }
  .nav-menu { gap: 20px; }
  .nav-menu a { font-size: 13.5px; }
  .brand img { height: 48px; }
  .hero h1 { font-size: 40px; }
  .stats { padding: 32px 30px; }
  .stat b { font-size: 32px; }
}

/* ── Tablet ───────────────────────────────────────────────── */
@media (max-width: 980px) {
  :root { --header-h: 72px; }

  h1 { font-size: 34px; }
  h2, .sec-title { font-size: 28px; }

  /* Navegación móvil */
  .mobile-menu-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    top: 0; right: 0;
    width: min(320px, 84vw);
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 88px 24px 32px;
    box-shadow: -6px 0 28px rgba(20, 25, 60, .18);
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 99;
    overflow-y: auto;
  }
  .nav-menu.is-open { transform: translateX(0); }

  .nav-menu > li { border-bottom: 1px solid var(--border); }
  .nav-menu > li:last-child { border-bottom: 0; }

  .nav-menu a {
    display: block;
    padding: 16px 4px;
    font-size: 15px;
  }
  .nav-menu a.active::after { display: none; }

  .nav-menu .nav-cta { margin: 20px 0 0; }
  .nav-menu .nav-cta a {
    text-align: center;
    padding: 15px 20px;
    border-radius: 4px;
  }

  body.menu-open { overflow: hidden; }

  /* Secciones */
  .hero { padding: 80px 0 96px; background-position: right center; }
  .hero p { font-size: 16.5px; }
  .hero-deco { width: 380px; height: 380px; border-width: 56px; right: -120px; top: -100px; }

  .page-hero { padding: 56px 0 62px; }
  .page-hero h1 { font-size: 32px; }
  .page-hero-lead { font-size: 16px; }

  .stats { flex-wrap: wrap; gap: 24px; padding: 30px 24px; }
  .stat { flex: 1 1 40%; border-right: 0; }

  .esp-grid,
  .proj-grid,
  .value-grid { grid-template-columns: 1fr; }

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

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

  .nos-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .nos-visual { height: 320px; }

  .spec-block { grid-template-columns: 1fr; gap: 30px; }
  .spec-block.reverse .spec-media { order: 0; }
  .spec-media { height: 260px; }

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

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

  .form-card { padding: 30px 26px; }

  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-inner h2 { font-size: 25px; }
}

/* ── Móvil ────────────────────────────────────────────────── */
@media (max-width: 760px) {
  :root { --section-pad: 58px; --gutter: 18px; }

  .topbar .container { flex-direction: column; gap: 2px; padding-top: 8px; padding-bottom: 8px; text-align: center; }
  .topbar .tb-right { gap: 14px; flex-wrap: wrap; justify-content: center; }
  .topbar > .container > div:first-child { display: none; }

  h1, .hero h1 { font-size: 29px; }
  h2, .sec-title { font-size: 24px; }
  .sec-sub { font-size: 15px; margin-bottom: 36px; }

  .hero { padding: 60px 0 84px; }
  .hero p { font-size: 15.5px; margin-bottom: 28px; }
  .hero .cta-row { gap: 12px; }
  .hero .cta-row .btn { flex: 1 1 100%; }

  .stats { margin-top: -46px; padding: 24px 16px; gap: 18px; }
  .stat b { font-size: 28px; }
  .stat span { font-size: 13px; }

  .esp-body { padding: 24px 22px 26px; }

  .gal-item { height: 190px; }

  .nos-visual { height: 260px; }
  .badges { grid-template-columns: 1fr; }

  .proj-img { height: 180px; }

  .btn { padding: 12px 22px; font-size: 14px; }

  .wsp { right: 18px; bottom: 18px; width: 54px; height: 54px; }
  .wsp svg { width: 28px; height: 28px; }
  .back-to-top { right: 20px; bottom: 84px; width: 42px; height: 42px; }
}

@media (max-width: 560px) {
  .f-row { grid-template-columns: 1fr; }
  .sect-row { grid-template-columns: repeat(2, 1fr); }
  .gal-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; }
  .cli-row { grid-template-columns: 1fr 1fr; gap: 14px; }
  .cli { height: 92px; }
  .stat { flex: 1 1 100%; }
  .form-card { padding: 24px 18px; }
}

/* ── Impresión ────────────────────────────────────────────── */
@media print {
  .topbar, .site-header, .wsp, .back-to-top,
  .cta-band, .mobile-menu-overlay, .breadcrumbs-section { display: none !important; }
  body { color: #000; }
  .hero, .page-hero { background: none; color: #000; padding: 20px 0; }
  .hero h1, .page-hero h1 { color: #000; }
  a { color: #000; text-decoration: underline; }
}