/* ============================================================
   RESPONSIVE — Oilbras
   ============================================================ */

/* ---- 1024px ---- */
@media (max-width: 1024px) {
  .about-grid { gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-brand { grid-column: span 2; }
  .contact-grid { gap: 48px; }
}

/* ---- 900px ---- */
@media (max-width: 900px) {
  .products-top  { grid-template-columns: repeat(2,1fr); }
  .diff-grid     { grid-template-columns: repeat(2,1fr); }
  .sust-pillars  { grid-template-columns: repeat(2,1fr); }
}

/* ---- 768px ---- */
@media (max-width: 768px) {
  /* Overflow global — evita scroll horizontal */
  html, body { overflow-x: hidden; max-width: 100%; }

  /* Navbar */
  .hamburger { display:flex; }
  .navbar-nav {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 12px 20px;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s ease, opacity 0.35s ease;
    z-index: 999;
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }
  .navbar-nav.mobile-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  /* Each li must be block so it doesn't overlap */
  .navbar-nav li { display: block; width: 100%; list-style: none; }
  .nav-link {
    display: block;
    padding: 11px 14px;
    border-radius: var(--r-md);
  }
  .nav-cta {
    display: block;
    margin: 6px 0 0 !important;
    margin-left: 0 !important;
    text-align: center !important;
    padding: 11px 14px !important;
    border-radius: var(--r-md) !important;
    box-shadow: none !important;
  }

  /* Grids inline responsivos */
  .rg  { grid-template-columns: 1fr !important; gap: 32px !important; }
  .rg2 { grid-template-columns: 1fr 1fr !important; }
  .rg-hide { display: none !important; }

  /* Hero */
  .hero-drop-deco { display:none; }
  .hero-title { font-size: clamp(38px, 9vw, 60px); }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-img { aspect-ratio: 4/3; order:-1; }
  .about-img img { object-position: center 15%; }
  .about-stats { grid-template-columns: repeat(3,1fr); }

  /* Products */
  .products-top    { grid-template-columns: 1fr 1fr; }
  .products-bottom { grid-template-columns: 1fr 1fr; max-width: 100%; }

  /* Differentials */
  .diff-grid { grid-template-columns: 1fr 1fr; }

  /* Sustainability */
  .sust-pillars { grid-template-columns: 1fr 1fr; }
  .sust-deco { display:none; }

  /* Blog */
  .blog-grid { grid-template-columns: 1fr 1fr; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; gap:48px; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}

/* ---- 600px ---- */
@media (max-width: 600px) {
  .products-top    { grid-template-columns: 1fr; }
  .products-bottom { grid-template-columns: 1fr; }
  .blog-grid       { grid-template-columns: 1fr; }
}

/* ---- Catálogo de produtos ---- */
@media (max-width: 980px) {
  .catalog-wrap { grid-template-columns: 1fr; }
  .cat-sidebar { position: static; }
  .cat-product-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .cat-product-grid { grid-template-columns: 1fr; }
  .catalog-section { padding: 40px 0 60px; }
}

/* ---- Navbar dropdown mobile ---- */
@media (max-width: 768px) {
  .nav-dropdown-menu {
    position: static;
    width: 100%;
    box-shadow: none;
    border: none;
    border-radius: 8px;
    padding: 4px 0 4px 12px;
    background: rgba(178,0,110,0.05);
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    transition: none !important;
    display: none;
  }
  .nav-dropdown.dd-open .nav-dropdown-menu { display: block; }
  .nav-dropdown > .nav-link { width: 100%; justify-content: space-between; }
}

/* ---- Navbar mobile: logo e altura reduzidos ---- */
@media (max-width: 768px) {
  :root { --nav-h: 72px; }
  .navbar-logo img { height: 52px !important; }
  .page-hero { padding: 110px 0 56px !important; }
  .cat-intro { padding: 48px 0 0 !important; }
}

/* ---- 480px ---- */
@media (max-width: 480px) {
  .rg2 { grid-template-columns: 1fr !important; }
  .container { padding: 0 16px; }

  /* Section spacing */
  .about, .products, .differentials,
  .sustainability, .blog, .contact { padding: 64px 0; }
  .cta-banner { padding: 56px 0; }

  .section-header { margin-bottom: 40px; }

  /* Buttons */
  .hero-btns { flex-direction:column; align-items:center; }
  .hero-btns .btn { width:100%; justify-content:center; max-width: 280px; }

  /* About */
  .about-stats { grid-template-columns: 1fr 1fr; gap:16px; }
  .about-stats .stat-item:last-child { grid-column: span 2; }
  .about-badge { left:16px; bottom:16px; padding:12px 16px; }

  /* Differentials */
  .diff-grid { grid-template-columns: 1fr; }

  /* Sustainability */
  .sust-pillars { grid-template-columns: 1fr 1fr; gap:14px; }

  /* Contact form */
  .contact-form { padding:24px 20px; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .footer-bottom-inner { flex-direction:column; text-align:center; }

  /* Page hero */
  .page-hero { padding: 110px 0 56px; }
  .page-hero-deco { display:none; }

  /* Cat intro */
  .cat-intro { padding: 48px 0 0; }
  .cat-intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .cat-intro-img { aspect-ratio: 16/9; }

  /* CTA */
  .cta-deco { display:none; }
}

@media (max-width: 991px) {
  .catalogo-container,
  .departamento-catalogo:nth-child(even) .catalogo-container {
    flex-direction: column;
    gap: 32px;
  }
  .departamento-imagem {
    flex: 0 0 auto;
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
    min-height: 200px;
  }
  .departamento-catalogo {
    padding: 48px 20px;
  }
  .catalogo-header {
    margin-bottom: 24px;
  }
}

@media (max-width: 600px) {
  .departamento-produtos {
    grid-template-columns: 1fr;
  }
}