/* =======================================================
   SHARED UI — Caixa Kennel
   Arquivo: /assets/css/shared-ui.css

   Contém APENAS componentes compartilhados por todas
   as páginas internas (não quebra home/checkout).

   SELETORES CONGELADOS (nunca renomear):
   .site-nav, .site-nav-inner, .site-nav-logo,
   .site-nav-links, .site-nav-toggle, #site-nav-menu,
   .page-breadcrumb, .back-button-wrapper, .btn-back-elegant,
   .skip-link
   ======================================================= */

/* -------------------------------------------------------
   SKIP LINK (acessibilidade)
------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px 16px;
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  font-size: .9rem;
}

.skip-link:focus {
  top: 0;
}

/* -------------------------------------------------------
   SITE NAV  (versão canônica)
   JS usa: querySelector('.site-nav-toggle')
            querySelector('.site-nav-links')
            classList.toggle('open')
------------------------------------------------------- */
.site-nav {
  background: #000;
  border-bottom: 2px solid transparent;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.site-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  min-height: 72px;
  position: relative; /* ancora o dropdown mobile */
}

/* Logo */
.site-nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-nav-logo img {
  width: clamp(150px, 18vw, 220px);
  height: auto;
  margin: 0;
  display: block;
  filter: none;
  transition: opacity var(--transition-fast);
}

.site-nav-logo img:hover { opacity: .85; }

/* Links desktop */
.site-nav-links {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 20px);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

.site-nav-links a {
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
  padding: 8px 6px;
  transition: color var(--transition-fast);
  position: relative;
}

.site-nav-links a:hover { color: #fff; }

/* Sublinhado da página ativa */
.site-nav-links a[aria-current],
.site-nav-links a[aria-current="page"] {
  color: #fff;
}

.site-nav-links a[aria-current]::after,
.site-nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  bottom: 2px;
  height: 2px;
  background: var(--color-primary);
  opacity: .9;
  border-radius: 2px;
}

/* Focus visible */
.site-nav-links a:focus-visible {
  outline: 2px solid rgba(255,255,255,.6);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Hamburguer */
.site-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  border-radius: 10px;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.site-nav-toggle:hover { background: rgba(255,255,255,.07); }

.site-nav-toggle:focus-visible {
  outline: 2px solid rgba(255,255,255,.6);
  outline-offset: 2px;
  border-radius: 4px;
}

.site-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Estado aberto: X */
.site-nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.site-nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.site-nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile nav (dropdown) */
@media (max-width: 768px) {
  .site-nav-toggle { display: flex; }

  .site-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 0;
    background: #000;
    border-top: 1px solid rgba(255,255,255,.12);
    padding: 6px 0;
    z-index: var(--z-dropdown);
    box-shadow: 0 8px 24px rgba(0,0,0,.4);
  }

  .site-nav-links.open { display: flex; }

  .site-nav-links li { width: 100%; }

  .site-nav-links a {
    display: flex;
    align-items: center;
    padding: 14px var(--spacing-md);
    border-bottom: 1px solid rgba(255,255,255,.06);
    white-space: normal;
    font-size: .98rem;
  }

  .site-nav-links a[aria-current]::after,
  .site-nav-links a[aria-current="page"]::after {
    display: none; /* substitui pelo bold no mobile */
  }

  .site-nav-links a[aria-current],
  .site-nav-links a[aria-current="page"] {
    color: var(--color-primary);
    font-weight: 700;
  }
}

/* -------------------------------------------------------
   PAGE BREADCRUMB
------------------------------------------------------- */
.page-breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px var(--spacing-md) 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 8px;
  font-size: .875rem;
  color: var(--color-text-secondary);
  word-break: break-word;
}

.page-breadcrumb a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-breadcrumb a:hover { color: var(--color-primary); }

.page-breadcrumb a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 3px;
}

.page-breadcrumb .sep { opacity: .4; }

.page-breadcrumb .current {
  color: var(--color-text);
  font-weight: 600;
}

/* -------------------------------------------------------
   BOTÃO VOLTAR
------------------------------------------------------- */
.back-button-wrapper {
  text-align: center;
  padding: clamp(22px, 5vw, var(--spacing-xl)) var(--spacing-md);
}

.btn-back-elegant {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  background: #fff;
  color: var(--color-text);
  font-weight: 700;
  font-size: .95rem;
  text-decoration: none;
  border: 1px solid rgba(0,0,0,.14);
  border-radius: 0;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  max-width: 92vw;
}

.btn-back-elegant:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-back-elegant:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* -------------------------------------------------------
   ACESSIBILIDADE: REDUZIR ANIMAÇÕES
------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .site-nav-logo img,
  .site-nav-toggle span,
  .site-nav-links a,
  .btn-back-elegant {
    transition: none !important;
  }
}

/* =====================================================
   .ck-brand-box — destaque visual "CAIXA KENNEL"
   Aplicado nas páginas internas. Index principal
   intocado (não usa esta classe).
===================================================== */
.ck-brand-box {
  display: inline-block;
  background: var(--color-primary, #C40000);
  color: #fff !important;          /* sobrescreve cor herdada de rev-impact etc. */
  padding: .18em .25em .14em .45em;
  border-radius: 0;
  line-height: 1.15;
  letter-spacing: 9px;
  white-space: nowrap;
  animation: ckBrandReveal .45s ease both;
  margin-top: 10px;
}

@media (max-width: 768px) {
  .ck-brand-box { display: inline-block !important; }

  /* Exceção: quando combinado com rev-apply-impact (seja-um-parceiro),
     permite empilhar de forma elegante sem esticar a largura */
  .rev-apply-impact.ck-brand-box {
    display: block !important;
    width: fit-content;
    margin-top: 6px;
  }
}

@keyframes ckBrandReveal {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .ck-brand-box { animation: none !important; }
}