/* ============================================================
   footer.css — Footer estilo Smartgr + botão flutuante WhatsApp
   Estrutura: top centralizado · accordions · social icons · legal
   ============================================================ */

.site-footer {
  background: var(--color-paper);
  border-top: 1px solid var(--color-line);
  padding-block: var(--space-12) var(--space-6);
  color: var(--color-ink-soft);
}

/* ----- TOP: brand centralizado + tagline + descrição + CTA ----- */
.footer-top {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-line);
}
.footer-top .brand {
  margin-bottom: var(--space-2);
}
.footer-tagline {
  margin: 0;
  font-size: var(--fs-14);
  font-weight: var(--fw-semibold);
  color: var(--color-brand-dark);
}
.footer-description {
  margin: 0;
  font-size: var(--fs-14);
  line-height: var(--lh-base);
  color: var(--color-ink-soft);
  max-width: 640px;
}
.footer-top .btn {
  margin-top: var(--space-3);
}

/* ----- ACCORDIONS ----- */
.footer-accordions {
  padding-block: var(--space-4);
}
.footer-accordion {
  border-bottom: 1px solid var(--color-line);
}
.footer-accordion summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  font-size: var(--fs-16);
  font-weight: var(--fw-semibold);
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.footer-accordion summary::-webkit-details-marker { display: none; }
.footer-accordion summary::marker { content: ''; }

.footer-accordion__chevron {
  color: var(--color-ink-soft);
  transition: transform 200ms ease;
  flex: 0 0 auto;
}
.footer-accordion[open] .footer-accordion__chevron {
  transform: rotate(180deg);
}

.footer-accordion ul {
  list-style: none;
  padding: 0 0 var(--space-4);
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-accordion ul li a,
.footer-accordion ul li span {
  display: block;
  font-size: var(--fs-14);
  color: var(--color-ink-soft);
  padding: var(--space-1) 0;
  transition: color 120ms ease;
}
.footer-accordion ul li a:hover {
  color: var(--color-brand-dark);
}
.footer-accordion summary:focus-visible,
.footer-accordion ul li a:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ----- SOCIAL ICONS CENTRALIZADOS ----- */
.footer-social {
  list-style: none;
  padding: var(--space-6) 0;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}
.footer-social li { flex: 0 0 auto; }
.footer-social a {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-paper-soft);
  color: var(--color-ink-soft);
  transition: background 120ms ease, color 120ms ease, transform 120ms ease;
}
.footer-social a:hover,
.footer-social a:focus-visible {
  background: var(--color-brand-light);
  color: var(--color-brand-dark);
  transform: translateY(-2px);
  outline: none;
}

/* ----- LEGAL BOTTOM ----- */
.footer-legal {
  text-align: center;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line);
}
.footer-legal__razao {
  margin: 0;
  font-size: var(--fs-12);
  font-weight: var(--fw-semibold);
  color: var(--color-ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.footer-legal__info {
  margin: var(--space-1) 0 0;
  font-size: var(--fs-12);
  color: var(--color-ink-mute);
}

/* ----- BOTÃO FLUTUANTE WHATSAPP ----- */
.wa-float {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  color: var(--color-paper);
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 95;   /* abaixo do drawer-scrim (190) e drawer (200) */
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.wa-float:hover,
.wa-float:focus-visible {
  transform: scale(1.08);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.55);
  outline: none;
}
.wa-float:focus-visible {
  outline: 3px solid var(--color-paper);
  outline-offset: 3px;
}

/* ----- Responsivo ----- */
@media (max-width: 767px) {
  .site-footer {
    padding-block: var(--space-8) var(--space-4);
  }
  .footer-top {
    padding-bottom: var(--space-6);
  }
  .footer-tagline { font-size: var(--fs-12); }
  .footer-description {
    font-size: var(--fs-12);
    line-height: 1.55;
  }
  .footer-accordion summary {
    padding: var(--space-3) 0;
    font-size: var(--fs-14);
  }
  .footer-social {
    padding-block: var(--space-4);
  }
  .footer-social a { width: 34px; height: 34px; }
  .footer-social a svg { width: 16px; height: 16px; }
  .footer-legal__razao { font-size: 10px; letter-spacing: 0.03em; }
  .footer-legal__info { font-size: 10px; }

  /* Botão flutuante um pouco menor no mobile */
  .wa-float {
    width: 52px;
    height: 52px;
    bottom: var(--space-3);
    right: var(--space-3);
  }
  .wa-float svg { width: 26px; height: 26px; }
}

/* ============================================================
   Bottom Navigation — apenas mobile (≤767px)
   ============================================================ */
.bottom-nav {
  display: none; /* esconde por padrão; mostrado em mobile via media query */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-paper);
  border-top: 1px solid var(--color-line);
  padding: 6px 8px;
  z-index: 90;   /* abaixo do header (100), drawer-scrim (190) e drawer (200) */
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.04);
  /* safe area iOS */
  padding-bottom: calc(6px + env(safe-area-inset-bottom, 0px));
}

.bottom-nav__grid {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 480px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.bottom-nav__item {
  position: relative;
  background: transparent;
  border: 0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 6px 2px;
  width: 100%;
  color: var(--color-ink-mute);
  text-decoration: none;
  font-family: inherit;
  transition: color 120ms ease;
}
.bottom-nav__item:hover,
.bottom-nav__item:focus-visible {
  color: var(--color-ink);
  outline: none;
}

.bottom-nav__indicator {
  display: none;
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: var(--color-brand);
  border-radius: 999px;
}

.bottom-nav__item.is-active {
  color: var(--color-brand);
}
.bottom-nav__item.is-active .bottom-nav__indicator {
  display: block;
}
.bottom-nav__item.is-active svg {
  stroke-width: 2.2;
}

.bottom-nav__label {
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
}

/* Badge de contagem no item Carrinho do bottom-nav.
   Reusa a classe .cart-count para que header.js atualize ambos os badges
   (header + bottom-nav) sem mudanças no JS. */
.bottom-nav__item .cart-count {
  position: absolute;
  top: 4px;
  left: 50%;
  margin-left: 6px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-brand);
  color: var(--color-paper);
  font-size: 10px;
  font-weight: var(--fw-bold);
  line-height: 1;
  border-radius: var(--radius-pill);
  pointer-events: none;
}

/* Mostra bottom-nav APENAS no mobile + compensa altura no body */
@media (max-width: 767px) {
  .bottom-nav { display: block; }
  body { padding-bottom: 64px; }

  /* Esconde wa-float no mobile (Suporte do bottom-nav substitui) */
  .wa-float { display: none; }

  /* Esconde ícone de carrinho do header no mobile (substituído pelo item no bottom-nav).
     Exceção: produto.html mantém o carrinho no header por ter "Adicionar ao Carrinho" no corpo. */
  body:not(.page-product) .header-cart { display: none; }
}