/* =========================================================================
   SISTEMA NICKPC — camada comum instalada em toda vitrine
   (progresso de rolagem, menu de seções, lightbox, FAQ, compartilhar,
    voltar ao topo e FAB). Instalada por FERRAMENTAS/instalar-sistema.cjs.

   Regra: só usa as variáveis que TODA base tem, sempre com fallback —
   se a base mudar a paleta, este arquivo continua funcionando.
   ========================================================================= */

:root {
  --sys-prim: var(--primaria, #7c3aed);
  --sys-prim-esc: var(--primaria-escura, #6d28d9);
  --sys-dest: var(--destaque, #ec4899);
  --sys-fundo: var(--fundo, #f7f7fb);
  --sys-card: var(--card, #ffffff);
  --sys-texto: var(--texto, #101828);
  --sys-suave: var(--texto-suave, #5b6472);
  --sys-linha: var(--borda, #e6e8ee);
  --sys-raio: var(--raio, 14px);
  --sys-sombra: var(--sombra, 0 8px 26px rgba(16, 24, 40, 0.07));
  --sys-zap: #25d366;
}

/* ---------- barra de progresso da rolagem ---------- */
.progresso {
  width: 100%;
  height: 4px;
  background: rgba(16, 24, 40, 0.08);
  overflow: hidden;
}
.progresso span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--sys-prim), var(--sys-dest));
  transition: width 0.12s linear;
}

/* ---------- menu de seções (tarja sob o header) ---------- */
.menu {
  position: relative;
  z-index: 30;
  background: var(--sys-card);
  border-bottom: 1px solid var(--sys-linha);
  box-shadow: 0 8px 22px rgba(16, 24, 40, 0.06);
}
.menu-btn {
  display: none;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 16px;
  background: none;
  border: 0;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  color: var(--sys-texto);
  cursor: pointer;
}
.menu-btn .ico-fechar {
  display: none;
}
.menu.menu-aberto .menu-btn .ico-menu {
  display: none;
}
.menu.menu-aberto .menu-btn .ico-fechar {
  display: inline;
}
.menu-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 12px;
  list-style: none;
}
.menu-links li {
  display: flex;
}
.menu-links a {
  position: relative;
  display: block;
  padding: 13px 15px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--sys-texto);
  text-decoration: none;
  border-radius: 10px 10px 0 0;
  transition:
    color 0.18s ease,
    background 0.18s ease;
}
.menu-links a:hover {
  color: var(--sys-prim);
  background: rgba(16, 24, 40, 0.045);
}
.menu-links a.ativo {
  color: var(--sys-prim);
}
.menu-links a.ativo::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(90deg, var(--sys-prim), var(--sys-dest));
}
.menu-links a:focus-visible,
.menu-btn:focus-visible {
  outline: 3px solid var(--sys-prim);
  outline-offset: -3px;
}

@media (max-width: 860px) {
  .menu-btn {
    display: flex;
  }
  .menu-links {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 6px 12px 14px;
  }
  .menu.menu-aberto .menu-links {
    display: flex;
  }
  .menu-links a {
    padding: 13px 14px;
    border-radius: 10px;
    background: rgba(16, 24, 40, 0.045);
  }
  .menu-links a.ativo::after {
    display: none;
  }
  .menu-links a.ativo {
    background: rgba(16, 24, 40, 0.08);
  }
}

/* ---------- seção injetada (FAQ + compartilhar) ---------- */
.sys-secao {
  padding: 62px 0;
}
.sys-topo {
  max-width: 760px;
  margin: 0 auto 26px;
  text-align: center;
}
.sys-olho {
  display: inline-block;
  margin: 0 0 10px;
  padding: 5px 13px;
  border-radius: 999px;
  background: rgba(16, 24, 40, 0.06);
  color: var(--sys-prim);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.sys-topo h2 {
  margin: 0 0 8px;
  font-size: clamp(24px, 4.4vw, 34px);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.sys-sub {
  margin: 0;
  color: var(--sys-suave);
  font-size: 16px;
  line-height: 1.6;
}

/* ---------- acordeão de dúvidas ---------- */
.faq {
  display: grid;
  gap: 12px;
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--sys-card);
  border: 1px solid var(--sys-linha);
  border-radius: var(--sys-raio);
  box-shadow: var(--sys-sombra);
  overflow: hidden;
}
.faq-item h3 {
  margin: 0;
  font-size: inherit;
}
.faq-btn {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 17px 18px;
  background: none;
  border: 0;
  font: inherit;
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  color: var(--sys-texto);
  cursor: pointer;
  transition: color 0.18s ease;
}
.faq-btn:hover {
  color: var(--sys-prim);
}
.faq-btn:focus-visible {
  outline: 3px solid var(--sys-prim);
  outline-offset: -3px;
}
.faq-btn span {
  flex: 1;
}
.faq-seta {
  flex: none;
  width: 20px;
  height: 20px;
  color: var(--sys-prim);
  transition: transform 0.25s ease;
}
.faq-btn[aria-expanded="true"] .faq-seta {
  transform: rotate(180deg);
}
.faq-painel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}
.faq-painel.aberta {
  grid-template-rows: 1fr;
}
.faq-conteudo {
  overflow: hidden;
}
.faq-conteudo p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--sys-suave);
  font-size: 15.5px;
  line-height: 1.65;
}
.faq-conteudo strong {
  color: var(--sys-texto);
}

/* ---------- compartilhar / copiar link ---------- */
.compartilhar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  max-width: 820px;
  margin: 30px auto 0;
  padding-top: 22px;
  border-top: 1px dashed var(--sys-linha);
}
.compartilhar-rot {
  font-size: 14.5px;
  color: var(--sys-suave);
}
.btn-mini {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 15px;
  border: 1px solid var(--sys-linha);
  border-radius: 999px;
  background: var(--sys-card);
  color: var(--sys-texto);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition:
    color 0.18s ease,
    border-color 0.18s ease,
    transform 0.18s ease;
}
.btn-mini:hover {
  color: var(--sys-prim);
  border-color: var(--sys-prim);
  transform: translateY(-1px);
}
.btn-mini:focus-visible {
  outline: 3px solid var(--sys-prim);
  outline-offset: 2px;
}
.btn-mini svg {
  width: 16px;
  height: 16px;
}
.copiado {
  font-size: 14px;
  font-weight: 700;
  color: #15803d;
}

/* ---------- lightbox da galeria ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 24px;
  background: rgba(8, 11, 17, 0.94);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.lightbox[hidden] {
  display: none !important;
}
.lightbox.lb-visivel {
  opacity: 1;
}
.lb-palco {
  display: grid;
  place-items: center;
  width: min(92vw, 900px);
  max-height: 66vh;
}
.lb-palco img {
  max-width: 100%;
  max-height: 66vh;
  border-radius: 16px;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.55);
}
.lb-vazio {
  display: grid;
  place-content: center;
  gap: 12px;
  width: min(86vw, 520px);
  aspect-ratio: 4 / 3;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 18px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.05));
  color: #fff;
  text-align: center;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}
.lb-vazio svg {
  width: 44px;
  height: 44px;
  margin: 0 auto;
  opacity: 0.9;
}
.lb-btn {
  position: absolute;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  cursor: pointer;
  transition:
    background 0.18s ease,
    transform 0.18s ease;
}
.lb-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.06);
}
.lb-btn:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}
.lb-btn svg {
  width: 22px;
  height: 22px;
}
.lb-ant {
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
}
.lb-prox {
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
}
.lb-fechar {
  top: 16px;
  right: 16px;
}
.lb-cont {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  letter-spacing: 0.05em;
}
body.menu-travado {
  overflow: hidden;
}

/* ---------- voltar ao topo ---------- */
.voltar {
  position: fixed;
  right: 16px;
  bottom: 98px;
  z-index: 60;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  background: var(--sys-prim);
  color: #fff;
  box-shadow: 0 12px 30px rgba(16, 24, 40, 0.28);
  cursor: pointer;
  text-decoration: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    background 0.18s ease;
}
.voltar:hover {
  background: var(--sys-prim-esc);
}
.voltar.visivel {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.voltar:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}
.voltar svg {
  width: 22px;
  height: 22px;
}

/* ---------- FAB (ação fixa: como chegar) ---------- */
.fab {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 55;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 19px;
  border-radius: 999px;
  background: var(--sys-prim);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 16px 36px rgba(16, 24, 40, 0.3);
  transition:
    transform 0.2s ease,
    background 0.2s ease;
}
.fab:hover {
  transform: translateY(-2px);
  background: var(--sys-prim-esc);
}
.fab:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}
.fab svg {
  width: 20px;
  height: 20px;
}
.fab::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid currentColor;
  opacity: 0;
  animation: sys-pulso 2.6s ease-out infinite;
}
@keyframes sys-pulso {
  0% {
    opacity: 0.55;
    transform: scale(1);
  }
  70%,
  100% {
    opacity: 0;
    transform: scale(1.28);
  }
}

/* ---------- no celular: a barra fixa da base ocupa o pé da tela ---------- */
@media (max-width: 760px) {
  .fab {
    bottom: 94px;
  }
  .voltar {
    display: none;
  }
}

/* ---------- fotos ampliáveis ---------- */
.foto {
  cursor: zoom-in;
}
.foto:focus-visible {
  outline: 3px solid var(--sys-prim);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .progresso span,
  .faq-painel,
  .lightbox,
  .voltar,
  .fab {
    transition: none;
  }
  .fab::after {
    animation: none;
  }
}