/* =============================================================
   MOBILE FIRST — Guia Comercial de Assis Chateaubriand
   Versão otimizada para touch devices e telas ≤ 480px
   ============================================================= */

/* ── 1. Safe areas (iPhone notch / gesture bar) ───────────── */
:root {
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --touch-min: 48px; /* altura mínima de tap */
}

/* ── 2. Touch targets — garantir 48px mínimo ──────────────── */
.btn, .side-link, .cat-card a, .biz-row-main,
.hero-search button,
.ai-toggle, .ai-panel header button,
.filter-chip, .site-nav a,
.footer-nav a, .share-bar a {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
}

/* ── 3. Header mobile — compacto ──────────────────────────── */
/* Header & nav now in header.css. Only touch targets + site-nav fallback here. */
@media (max-width: 640px) {
  .site-nav { display: none; }
}

/* ── 4. Hero mobile ───────────────────────────────────────── */
@media (max-width: 640px) {
  .hero {
    padding: 48px 0 36px;
  }
  .hero h1 {
    font-size: clamp(28px, 8vw, 42px);
    letter-spacing: -.04em;
  }
  .hero-sub {
    font-size: 15px;
    padding: 0 4px;
  }
  .hero-search {
    flex-direction: column;
    border-radius: 18px;
    padding: 6px;
    gap: 6px;
  }
  .hero-search input {
    padding: 14px 16px;
    font-size: 16px;
    border-radius: 14px;
  }
  .hero-search button {
    padding: 14px;
    border-radius: 14px;
    font-size: 16px;
  }
  .hero-stats {
    gap: 10px;
  }
  .hero-stats div {
    min-width: 90px;
    padding: 12px;
    border-radius: 14px;
  }
  .hero-stats strong {
    font-size: 22px;
  }
  .hero-quicklinks {
    gap: 6px;
  }
  .hero-quicklinks a {
    padding: 8px 12px;
    font-size: 12px;
  }
}

/* ── 5. Search page mobile ────────────────────────────────── */
@media (max-width: 640px) {
  .search-hero-mini {
    padding: 32px 0;
  }
  .search-hero-mini h1 {
    font-size: 28px;
  }
  .search-page-form {
    flex-direction: column;
    border-radius: 16px;
    padding: 10px;
    gap: 8px;
  }
  .search-page-form input,
  .search-page-form select,
  .search-page-form .btn {
    width: 100%;
    border-radius: 12px;
    padding: 14px;
    font-size: 16px;
  }
  .filter-chip {
    width: 100%;
    justify-content: center;
    padding: 12px;
    border-radius: 12px;
    font-size: 14px;
  }

  /* Sidebar — colapsa em drawer */
  .search-layout {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .search-sidebar {
    position: static;
    display: none;
    border-radius: 14px;
    padding: 12px;
  }
  .search-sidebar.mobile-open {
    display: block;
  }
  .search-sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    font-weight: 800;
    font-size: 14px;
    cursor: pointer;
    margin-bottom: 10px;
  }
  .side-link {
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 14px;
  }

  /* Resultados */
  .results-head {
    flex-direction: column;
    gap: 4px;
  }
  .biz-row {
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border-radius: 14px;
  }
  .biz-row-main {
    gap: 12px;
  }
  .biz-row-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    font-size: 22px;
    flex-shrink: 0;
  }
  .biz-row-main strong {
    font-size: 15px;
  }
  .biz-row-main small, .biz-row-main em {
    font-size: 13px;
  }
  .row-actions {
    width: 100%;
    gap: 8px;
    margin-top: 8px;
  }
  .row-actions .btn {
    flex: 1;
    padding: 12px;
    font-size: 14px;
  }
}

/* ── 6. Category / neighborhood pages mobile ──────────────── */
@media (max-width: 640px) {
  .cat-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .cat-big-icon {
    font-size: 40px;
  }
  .cat-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
  }
  .cat-card {
    padding: 14px;
    min-height: 110px;
  }
  .cat-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    font-size: 22px;
  }
}

/* ── 7. Business page mobile ──────────────────────────────── */
@media (max-width: 640px) {
  .biz-hero-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .biz-hero {
    padding: 24px 0;
  }
  .biz-title-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .biz-title-row h1 {
    font-size: 26px;
  }
  .biz-address {
    font-size: 15px;
  }
  .biz-map, .map-placeholder {
    height: 220px;
    border-radius: 18px;
  }
  .biz-actions {
    flex-direction: column;
    gap: 8px;
  }
  .sticky-actions .btn {
    width: 100%;
    padding: 14px;
    font-size: 15px;
  }
  .biz-content-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .biz-section {
    padding: 18px;
    border-radius: 16px;
    margin: 10px 0;
  }
  .biz-sidebar {
    position: static;
  }

  /* Products */
  .product-grid-public {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
  }
  .product-card-public {
    border-radius: 14px;
  }
  .product-card-public img, .product-fallback {
    height: 100px;
  }
  .product-card-public div:last-child {
    padding: 10px;
  }
  .product-card-public h3 {
    font-size: 14px;
  }

  /* Photos */
  .photo-strip {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
  }
  .photo-strip img {
    height: 90px;
    border-radius: 12px;
  }

  /* Hours */
  .hours-table td {
    padding: 10px;
    font-size: 14px;
  }
  .hours-table td:first-child {
    width: auto;
  }

  /* Reviews */
  .rating-summary {
    font-size: 16px;
  }
  .review-form-toggle summary {
    padding: 14px;
  }

  /* Share bar */
  .share-bar {
    flex-wrap: wrap;
    gap: 8px;
  }
  .share-bar .btn {
    flex: 1;
    min-width: 80px;
    padding: 10px;
    font-size: 13px;
  }

  /* Sticky map below actions */
  .biz-map-card {
    border-radius: 18px;
    box-shadow: none;
    border: 1px solid var(--line);
  }
}

/* ── 8. Offers / Events / Blog mobile ─────────────────────── */
@media (max-width: 640px) {
  .offer-grid, .event-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .offer-card {
    flex-direction: column;
    gap: 10px;
  }
  .offer-icon {
    font-size: 28px;
  }
}

/* ── 9. AI Widget mobile — fullscreen-like ─────────────────── */
@media (max-width: 640px) {
  .ai-widget {
    right: 10px;
    bottom: calc(10px + var(--safe-bottom));
    z-index: 1000;
  }
  .ai-toggle {
    padding: 14px 20px;
    font-size: 15px;
    border-radius: 999px;
    box-shadow: 0 8px 28px rgba(37,99,235,.4);
  }
  .ai-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    border-radius: 0;
    border: none;
    z-index: 1001;
  }
  .ai-panel header {
    padding: 14px 16px;
    padding-top: calc(14px + var(--safe-top));
    border-radius: 0;
  }
  .ai-panel header button {
    font-size: 28px;
    padding: 8px;
  }
  .ai-messages {
    padding: 14px;
    padding-bottom: calc(14px + var(--safe-bottom));
  }
  .ai-msg {
    max-width: 88%;
    font-size: 14px;
    padding: 12px 14px;
    border-radius: 18px;
  }
  .ai-panel form {
    padding: 12px 14px;
    padding-bottom: calc(12px + var(--safe-bottom));
    gap: 8px;
  }
  .ai-panel input {
    padding: 14px 16px;
    font-size: 16px;
    border-radius: 999px;
  }
  .ai-panel form button {
    padding: 0 18px;
    height: 44px;
    border-radius: 999px;
    font-size: 15px;
  }
  .ai-cards {
    gap: 8px;
  }
  .ai-card {
    padding: 12px;
    border-radius: 14px;
  }
  .ai-suggestions {
    gap: 6px;
  }
  .ai-suggestions a {
    padding: 8px 12px;
    font-size: 13px;
  }
}

/* ── 10. Footer mobile ────────────────────────────────────── */
@media (max-width: 640px) {
  .site-footer {
    padding: 20px 0;
    margin-top: 24px;
    padding-bottom: calc(20px + var(--safe-bottom));
  }
  .footer-row {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }
  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }
  .footer-nav a {
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 13px;
  }
}

/* ── 11. Forms mobile ─────────────────────────────────────── */
@media (max-width: 640px) {
  .form-grid-public {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .form-grid-public label {
    font-size: 14px;
  }
  .form-grid-public input,
  .form-grid-public select,
  .form-grid-public textarea {
    padding: 14px;
    font-size: 16px;
    border-radius: 14px;
  }
  .form-card {
    padding: 16px;
    border-radius: 16px;
  }
}

/* ── 12. Merchant / Plans mobile ──────────────────────────── */
@media (max-width: 640px) {
  .merchant-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .merchant-hero {
    padding: 28px 0;
  }
  .merchant-card {
    padding: 18px;
    border-radius: 18px;
  }
  .plans-grid {
    grid-template-columns: 1fr;
  }
  .plan-card {
    padding: 18px;
    border-radius: 18px;
  }
  .plan-card h3 {
    font-size: 24px;
  }
}

/* ── 13. Admin panel mobile (for merchant panel too) ──────── */
@media (max-width: 640px) {
  .panel-card, .admin-card {
    padding: 16px;
    border-radius: 16px;
  }
}

/* ── 14. Smooth transitions & tap feedback ─────────────────── */
@media (hover: none) and (pointer: coarse) {
  /* Remove hover effects on touch — usar :active em vez disso */
  .cat-card:hover, .biz-card:hover, .biz-row:hover,
  .offer-card:hover, .featured-card:hover {
    transform: none;
    box-shadow: none;
  }
  .cat-card:active, .biz-card:active, .biz-row:active,
  .offer-card:active, .featured-card:active {
    transform: scale(.98);
    transition: transform .1s;
  }
  .btn:active {
    opacity: .85;
    transform: scale(.97);
  }
}

/* ── 15. Print — esconde nav, AI widget ───────────────────── */
@media print {
  .site-nav, .ai-widget, .search-bar, .site-footer,
  .sticky-actions, .share-bar { display: none !important; }
  .site-header { position: static; }
  body { background: #fff; }
}

/* ── 16. Accessibility: reduced motion ─────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── 17. Dark mode support (optional, future) ──────────────── */
@media (prefers-color-scheme: dark) {
  /* Placeholder — implementar quando necessário */
}

/* ── 18. Large phones / small tablets (641-900px) ──────────── */
@media (min-width: 641px) and (max-width: 900px) {
  .search-layout {
    grid-template-columns: 220px 1fr;
  }
  .biz-hero-grid {
    grid-template-columns: 1fr 320px;
  }
  .biz-content-grid {
    grid-template-columns: 1fr 280px;
  }
}