/* =====================================================================
   Camada de responsividade Mobile & Tablet (mobile-first refinements)
   Complementa app.css sem alterar comportamento. Breakpoints:
   320–480 mobile · 481–640 mobile grande · 641–768 tablet retrato ·
   769–1024 tablet paisagem · 1025+ desktop.
   ===================================================================== */

/* Nunca permitir scroll horizontal global */
html, body { overflow-x: hidden; max-width: 100%; }
.content, .main, .app-shell { min-width: 0; max-width: 100%; }
img, svg, table, pre { max-width: 100%; }
[data-chart] { max-width: 100%; overflow: hidden; }

/* ---------------- Tablet paisagem (≤1024) ---------------- */
@media (max-width: 1024px) {
    :root { --sidebar-w: 232px; }
    .content { padding: var(--space-5); }
    .kpi__value { font-size: 1.5rem; }
}

/* ---------------- Tablet retrato (≤768): drawer + cards ---------------- */
@media (max-width: 768px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed; left: 0; top: 0; z-index: 90; width: min(86vw, 300px); height: 100vh;
        overflow-y: auto; transform: translateX(-100%); transition: transform var(--t-base);
    }
    .sidebar.is-open { transform: none; box-shadow: var(--shadow-float); }
    .sidebar-backdrop { position: fixed; inset: 0; background: rgba(20,12,26,.5); z-index: 80; display: none; }
    .sidebar-backdrop.is-open { display: block; }
    .topbar__menu-btn { display: inline-grid !important; }

    /* Tabelas viram cards */
    .table-responsive thead { display: none; }
    .table-responsive tbody td { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 9px var(--space-4); border: 0; text-align: right; }
    .table-responsive tbody td::before { content: attr(data-label); font-weight: 700; color: var(--color-muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .03em; text-align: left; }
    .table-responsive tbody td:empty { display: none; }
    .table-responsive tbody tr { display: block; border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: var(--space-3); padding: 4px 0; background: #fff; box-shadow: var(--shadow-xs); }
    .table-responsive .col-actions { justify-content: flex-end; }
    .table-wrap { border: 0; box-shadow: none; background: transparent; overflow: visible; }

    /* Mobile bottom nav */
    .mobile-nav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; background: rgba(255,255,255,.96);
        backdrop-filter: blur(8px); border-top: 1px solid var(--color-border); z-index: 70; padding: 6px 4px;
        justify-content: space-around; box-shadow: 0 -8px 24px rgba(36,27,46,.08); padding-bottom: max(6px, env(safe-area-inset-bottom)); }
    .mobile-nav a { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: .64rem; color: var(--color-muted); padding: 6px 10px; min-width: 56px; border-radius: 10px; }
    .mobile-nav a i { font-size: 1.35rem; }
    .mobile-nav a.is-active { color: var(--color-primary-dark); }
    .content { padding-bottom: 84px; }

    /* Touch targets ≥ 44px */
    .btn { min-height: 44px; }
    .btn--sm { min-height: 38px; }
    .input, .select, .textarea { min-height: 46px; font-size: 16px; /* evita zoom no iOS */ }
    .icon-btn, .topbar__icon-btn { min-width: 44px; min-height: 44px; }
    .nav-link { padding: 13px var(--space-3); }
    .dropdown__item { padding: 12px; }
    .tab { padding: 13px 16px; }

    /* Header de página empilha; ação principal vira largura total */
    .page-head { flex-direction: column; align-items: stretch; gap: var(--space-3); }
    .page-head > .btn, .page-head form .btn { width: 100%; }
    .page-head .row { width: 100%; }

    /* Grids em coluna única */
    .grid-2, .grid-3, .grid-12 { grid-template-columns: 1fr; }
    .form-grid--2, .form-grid--3 { grid-template-columns: 1fr; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
    .kpi { padding: var(--space-4); }
    .kpi__value { font-size: 1.35rem; }

    /* Filtros: cada controle em largura total e empilhado */
    .card__body form.row { flex-direction: column; align-items: stretch; }
    .card__body form.row .select,
    .card__body form.row .input,
    .card__body form.row .btn,
    .card__body form.row .topbar__search { width: 100% !important; }

    /* Card foot com botões empilhados */
    .card__foot { flex-wrap: wrap; }
    .card__foot .btn { flex: 1; }

    /* Topbar enxuta */
    .topbar { padding: 0 var(--space-4); gap: var(--space-2); }
    .topbar__title { font-size: .98rem; }
    .topbar .btn--primary span, .topbar .btn--primary { font-size: .82rem; }

    /* Tipografia */
    .page-head__title { font-size: 1.3rem; }

    /* Modais viram bottom sheet */
    .modal-overlay { align-items: flex-end; padding: 0; }
    .modal { max-width: 100%; width: 100%; border-radius: var(--radius-lg) var(--radius-lg) 0 0; max-height: 92vh; animation: sheetUp var(--t-base); }
    .modal__foot { position: sticky; bottom: 0; background: #fff; }
    .modal__foot .btn { flex: 1; }
}

@keyframes sheetUp { from { transform: translateY(100%); } to { transform: none; } }

/* ---------------- Mobile grande (≤640) ---------------- */
@media (max-width: 640px) {
    .content { padding: var(--space-4); padding-bottom: 84px; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------------- Mobile padrão (≤480) ---------------- */
@media (max-width: 480px) {
    body { font-size: 15px; }
    .kpi-grid { grid-template-columns: 1fr 1fr; }
    .auth__main { padding: var(--space-5) var(--space-4); }
    .page-head__title { font-size: 1.2rem; }
    .card__body { padding: var(--space-4); }
    .card__head { padding: var(--space-4) var(--space-4) 0; }
    .modal__body, .modal__head, .modal__foot { padding: var(--space-4); }
    .segmented { width: 100%; }
    .segmented button { flex: 1; padding: 10px 8px; font-size: .8rem; }
    .breadcrumbs { font-size: .78rem; }
}

/* ---------------- Mobile pequeno (≤360) ---------------- */
@media (max-width: 360px) {
    .kpi-grid { grid-template-columns: 1fr; }
    .kpi__value { font-size: 1.4rem; }
    .topbar .btn--primary { padding: 8px 12px; }
}

/* ---------------- Tablet (2 colunas onde couber) ---------------- */
@media (min-width: 641px) and (max-width: 1024px) {
    .form-grid--2 { grid-template-columns: 1fr 1fr; }
    .kpi-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Mantém preferências de movimento reduzido */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
    html { scroll-behavior: auto; }
}