/* ============================================================
   Stacks Garage — responsive.css
   Breakpoints: 1024, 900, 640, 380
   ============================================================ */

html { overflow-x: hidden; }

/* ---- Tablets / small laptops ---- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }

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

  .trust-bar { grid-template-columns: repeat(4, 1fr); }

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

  .process { grid-template-columns: repeat(3, 1fr); gap: 24px 16px; }
  .process::before { display: none; }

  .service-split { gap: 40px; margin-bottom: 80px; }

  .pricing { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }

  .cta-banner {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 48px 28px;
  }
}

/* ---- Tablets ---- */
@media (max-width: 900px) {
  :root { --nav-h: 90px; }
  .section { padding: 72px 0; }

  h1 { font-size: clamp(2rem, 7vw, 3rem); }
  h2 { font-size: clamp(1.6rem, 5vw, 2.2rem); }

  .nav__menu { display: none; }
  .nav__burger { display: inline-flex; }
  .nav__logo-img { height: 52px; }

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

  .service-split { grid-template-columns: 1fr; gap: 32px; margin-bottom: 56px; }
  .grid-split, .grid-split--wide { grid-template-columns: 1fr; gap: 32px; }

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

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

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

  .testimonial { flex: 0 0 calc((100% - 24px) / 2); }

  .hero__dims { display: none; }
  .hero__blueprint { background-size: 32px 32px; }
}

/* ---- Mobile ---- */
@media (max-width: 640px) {
  .container { padding-inline: 18px; }

  :root { --nav-h: 80px; }

  .nav__logo-img { height: 44px; }
  .nav__actions .btn--primary { display: none; }

  .section { padding: 60px 0; }

  .section-heading { margin-bottom: 2rem; }

  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .trust-bar { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: 1fr 1fr; }

  .offer-card { padding: 26px 22px; }
  .offer-card__head { gap: 12px; }
  .offer-card__title { font-size: 1.2rem; }

  .demo-modal__head, .demo-modal__foot, .demo-modal__body { padding-inline: 18px; }
  .demo-modal__foot { flex-direction: column; align-items: stretch; }
  .demo-modal__foot .btn { width: 100%; }
  .team { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }

  .testimonial { flex: 0 0 88%; }

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

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

  .feature-list { grid-template-columns: 1fr; }

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

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .hero {
    min-height: 90vh;
    padding-top: calc(var(--nav-h) + 20px);
    padding-bottom: 80px;
  }

  .hero__cta-row { flex-direction: column; align-items: stretch; }
  .hero__cta-row .btn { width: 100%; }

  .btn { padding: 12px 22px; font-size: 0.85rem; }

  .card { padding: 24px 20px; }

  .service-split__panel { padding: 28px 24px; }

  .lang-toggle button { padding: 5px 10px; }

  .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
  .toast { left: 20px; right: 20px; bottom: 20px; }
}

/* ---- Very small phones ---- */
@media (max-width: 380px) {
  .nav__logo-img { height: 38px; }
}

/* ---- Print ---- */
@media print {
  .site-header, .site-footer, .back-to-top, .lang-toggle, .nav-drawer { display: none; }
  .hero { min-height: auto; padding: 20px 0; }
  body { background: white; color: black; }
}