/* ============================================================================
   KinoCampus — Visualizador de imagem em tela cheia (lightbox) — v8.6.1
   Página de produto (_product.html). Recurso isolado em arquivo próprio para
   não invalidar o cache imutável de product.css ao ser lançado.

   - Overlay fixo acima de toda a UI (z-index > 10030 usado no app)
   - Imagem com transform (zoom/pan) controlado por product.lightbox.js
   - Cores fixas (independente do tema) — convenção de visualizadores escuros
   - iOS-safe: sem backdrop-filter; respeita safe-area-insets
   ========================================================================== */

/* ── Afford ância no main image da galeria ─────────────────────────────────── */
.kc-gallery-main.kc-zoomable {
  cursor: zoom-in;
}

.kc-gallery-main.kc-zoomable #mainImage {
  cursor: zoom-in;
}

.kc-zoom-hint {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 3;
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.78);
  color: #fff;
  font-size: 0.95rem;
  line-height: 1;
  cursor: zoom-in;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
  transition: transform 0.15s ease, background-color 0.15s ease, opacity 0.15s ease;
}

.kc-gallery-main.kc-zoomable .kc-zoom-hint {
  display: inline-flex;
}

.kc-zoom-hint:hover,
.kc-zoom-hint:focus-visible {
  background: rgba(255, 107, 0, 0.92);
  transform: scale(1.06);
  outline: none;
}

/* ── Lock de scroll do body enquanto o overlay está aberto ─────────────────── */
body.kc-lightbox-lock {
  position: fixed;
  left: 0;
  right: 0;
  width: 100%;
  overflow: hidden;
}

/* ── Overlay ───────────────────────────────────────────────────────────────── */
.kc-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8, 10, 16, 0.94);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}

.kc-lightbox[hidden] {
  display: none;
}

.kc-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.kc-lightbox__backdrop {
  position: absolute;
  inset: 0;
  cursor: zoom-out;
}

/* ── Palco da imagem ───────────────────────────────────────────────────────── */
.kc-lightbox__stage {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  overflow: hidden;
  touch-action: none;
  cursor: zoom-in;
}

.kc-lightbox__stage.is-zoomed {
  cursor: grab;
}

.kc-lightbox__stage.is-panning {
  cursor: grabbing;
}

.kc-lightbox__img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transform: translate3d(0, 0, 0) scale(1);
  transform-origin: center center;
  will-change: transform;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
  transition: transform 0.2s ease;
}

.kc-lightbox__img.is-gesturing {
  transition: none;
}

.kc-lightbox__img.is-switching {
  opacity: 0;
  transition: opacity 0.12s ease;
}

/* ── Barra superior (contador + ações) ─────────────────────────────────────── */
.kc-lightbox__toolbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: calc(env(safe-area-inset-top, 0px) + 12px) calc(env(safe-area-inset-right, 0px) + 14px) 12px
    calc(env(safe-area-inset-left, 0px) + 14px);
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0));
  pointer-events: none;
}

.kc-lightbox__toolbar > * {
  pointer-events: auto;
}

.kc-lightbox__counter {
  color: #fff;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
  min-height: 24px;
  display: inline-flex;
  align-items: center;
}

.kc-lightbox__tools {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ── Botões ────────────────────────────────────────────────────────────────── */
.kc-lightbox__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(20, 24, 33, 0.72);
  color: #fff;
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.15s ease, opacity 0.15s ease;
}

.kc-lightbox__btn:hover,
.kc-lightbox__btn:focus-visible {
  background: rgba(255, 107, 0, 0.92);
  outline: none;
}

.kc-lightbox__btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.55);
}

.kc-lightbox__btn:active {
  transform: scale(0.94);
}

.kc-lightbox__btn[disabled] {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

/* ── Navegação lateral (prev/next) ─────────────────────────────────────────── */
.kc-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(20, 24, 33, 0.62);
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.15s ease, opacity 0.15s ease;
}

.kc-lightbox__nav:hover,
.kc-lightbox__nav:focus-visible {
  background: rgba(255, 107, 0, 0.92);
  outline: none;
}

.kc-lightbox__nav:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.55);
}

.kc-lightbox__nav--prev {
  left: calc(env(safe-area-inset-left, 0px) + 14px);
}

.kc-lightbox__nav--next {
  right: calc(env(safe-area-inset-right, 0px) + 14px);
}

.kc-lightbox__nav[hidden] {
  display: none;
}

.kc-lightbox__nav[disabled] {
  opacity: 0.3;
  cursor: default;
  pointer-events: none;
}

/* ── Responsivo ────────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .kc-lightbox__nav {
    width: 46px;
    height: 46px;
    font-size: 1.05rem;
    top: auto;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 16px);
    transform: none;
  }

  .kc-lightbox__nav--prev {
    left: calc(env(safe-area-inset-left, 0px) + 16px);
  }

  .kc-lightbox__nav--next {
    right: calc(env(safe-area-inset-right, 0px) + 16px);
  }

  .kc-lightbox__btn {
    width: 42px;
    height: 42px;
  }
}

/* ── Acessibilidade: movimento reduzido ────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .kc-lightbox,
  .kc-lightbox__img,
  .kc-lightbox__btn,
  .kc-lightbox__nav,
  .kc-zoom-hint {
    transition: none !important;
  }
}