@media (max-width: 950px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
  .page-grid, .vehicles-layout { grid-template-columns: 1fr; }
  .form-grid, .filter-grid, .metric-grid { grid-template-columns: 1fr; }
  .vehicle-image-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-toolbar, .vehicle-public-hero { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vehicle-public-lower { grid-template-columns: 1fr; }
}

@media (max-width: 650px) {
  .main-panel { padding: 16px; }
  .topbar { flex-direction: column; align-items: flex-start; gap: 10px; }
  .vehicle-card { grid-template-columns: 1fr; }
  .vehicle-image-list { grid-template-columns: 1fr; }
  .catalog-shell, .vehicle-public-shell { width: min(100% - 24px, 680px); padding-top: 20px; }
  .catalog-header { align-items: flex-start; flex-direction: column; gap: 14px; }
  .catalog-filters, .catalog-grid { grid-template-columns: 1fr; }
  .vehicle-public-summary h1 { font-size: 2.5rem; }
  .vehicle-public-lower { margin-top: 24px; }
  .vehicle-public-section { padding: 20px; }
}

/* ============================================================
   MENU ADMINISTRATIVO — DESKTOP + MOBILE
   ============================================================ */
@media (max-width: 650px) {
  .app-shell {
    display: block;
    min-height: 100vh;
  }

  .main-panel {
    width: 100%;
    padding: 16px;
  }

  .topbar {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 12px;
  }

  .topbar > div { min-width: 0; }

  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255,255,255,0.08);
    color: var(--text);
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 1000;
    width: min(88vw, 340px);
    max-width: 340px;
    height: 100dvh;
    overflow-y: auto;
    padding: 20px 16px;
    border-right: 1px solid var(--border);
    border-bottom: 0;
    background: rgba(7,17,31,0.98);
    backdrop-filter: blur(18px);
    transform: translateX(-105%);
    transition: transform 220ms ease;
    box-shadow: 20px 0 40px rgba(0,0,0,0.28);
  }

  .app-shell.mobile-sidebar-open .sidebar {
    transform: translateX(0);
  }

  .app-shell.mobile-sidebar-open::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0,0,0,0.56);
    backdrop-filter: blur(2px);
  }

  /* Mobile nunca usa o estado collapsed do desktop. */
  .sidebar.collapsed {
    padding: 20px 16px;
  }

  .sidebar.collapsed .brand-block,
  .sidebar.collapsed .brand-copy,
  .sidebar.collapsed .nav-label {
    display: initial;
  }

  .sidebar.collapsed .brand-block { display: flex; }
  .sidebar.collapsed .nav-label { display: inline; }
  .sidebar.collapsed .nav-item { justify-content: flex-start; padding: 12px 14px; }
  .sidebar.collapsed .sidebar-catalog-link { justify-content: flex-start; padding: 12px 14px; }

  .sidebar-top { margin-bottom: 24px; }
  .brand-copy h1 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .brand-copy p { white-space: nowrap; }

  .topbar h2 { font-size: 1.55rem; line-height: 1.1; margin: 0; }
  .topbar > div > .eyebrow { margin-bottom: 4px; }
  .topbar > div > p:last-child { font-size: 0.86rem; line-height: 1.35; }

  .topbar-actions { grid-column: 1 / -1; width: 100%; }
  .topbar-actions #quick-action { width: 100%; }

  body:has(.app-shell.mobile-sidebar-open) { overflow: hidden; }

  .sidebar-divider { height: 1px; margin: 10px 4px; background: var(--border); }

  .store-logo-editor { align-items: flex-start; }
}

@media (min-width: 651px) {
  .mobile-menu-toggle { display: none; }
}

@media(max-width:650px){
  .topbar-actions{display:flex;align-items:center;gap:7px}
  .topbar-actions #quick-action{width:auto;flex:0 0 auto;min-height:42px;padding:9px 11px;white-space:nowrap}
  .vehicle-header-search{flex:1;min-width:0}
}