/**
 * responsive.css — ajustes para tablets e celulares (a partir de 360px)
 */

@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { height: 220px; order: -1; }

  .selection-layout { grid-template-columns: 1fr; }
  .brand-sidebar { display: none; }
  .brand-select-mobile { display: block; margin-bottom: var(--space-md); }

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

@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }

  .site-header.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--uvtek-surface-light);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid var(--uvtek-border-light);
    gap: var(--space-sm);
  }

  .steps-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .tutorial-grid { grid-template-columns: 1fr; }
  .tutorial-step { grid-template-columns: 44px 1fr; }
}

@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr; }
  .section { padding: var(--space-xl) 0; }
  .btn { width: 100%; }
  .btn-group { flex-direction: column; }
  .result-visual { gap: var(--space-md); }
  .result-visual-item { width: 110px; height: 130px; }
  .param-row { padding: 12px 16px; }
}

@media (min-width: 1600px) {
  .container { max-width: 1440px; }
}