/* =====================================================
   Senac Photo Gallery — Estilos Front-end
   ===================================================== */

:root {
  --sgal-bg: #f5f4f0;
  --sgal-bg-thumbs: #e8e6de;
  --sgal-accent: #1a6bbf;
  --sgal-accent-hover: #e87020;
  --sgal-thumb-arrow-hover: #d0220a;
  --sgal-white: #fff;
  --sgal-text: #2a2a2a;
  --sgal-border: #d6d2c8;
  --sgal-thumb-gap: 8px;
  --sgal-radius: 8px;
  --sgal-nav-size: 48px;
  --sgal-caption-bg: rgba(26, 107, 191, 0.86);
  --sgal-thumb-size: 90px;
  --sgal-transition: 0.28s ease;
}

/* Wrapper principal */
.senac-gallery {
  width: 100%;
  max-width: 900px;
  margin: 2rem auto;
  background: var(--sgal-bg);
  border-radius: var(--sgal-radius);
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,0.12), 0 0 0 1px var(--sgal-border);
  font-family: inherit;
}

.senac-gallery__title {
  color: var(--sgal-text);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 14px 18px 10px;
  margin: 0;
  border-bottom: 3px solid var(--sgal-accent);
  letter-spacing: 0.01em;
}

/* ——————————————————————————
   Foto Destaque
—————————————————————————— */
.senac-gallery__featured {
  position: relative;
  width: 100%;
  background: #1a1a1a;
  overflow: hidden;
}

.senac-gallery__featured-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Fundo blur — preenche laterais em fotos verticais */
.senac-gallery__bg-blur {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(22px) brightness(0.65) saturate(1.3);
  transform: scale(1.1);
  z-index: 0;
  pointer-events: none;
  transition: opacity var(--sgal-transition);
}

.senac-gallery__main-img {
  position: relative;
  z-index: 1;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: opacity var(--sgal-transition);
  cursor: zoom-in;
}

.senac-gallery__main-img.is-loading,
.senac-gallery__main-img.is-loading ~ .senac-gallery__bg-blur,
.senac-gallery__bg-blur.is-loading {
  opacity: 0;
}

/* Setas de navegação principal */
.senac-gallery__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: var(--sgal-accent);
  border: none;
  color: var(--sgal-white);
  width: var(--sgal-nav-size);
  height: var(--sgal-nav-size);
  border-radius: 50%;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.35);
  transition: background var(--sgal-transition), transform var(--sgal-transition);
  padding: 0;
}

.senac-gallery__nav:hover,
.senac-gallery__nav:focus-visible {
  background: var(--sgal-accent-hover);
  transform: translateY(-50%) scale(1.1);
  outline: none;
}

.senac-gallery__nav--prev { left: 14px; }
.senac-gallery__nav--next { right: 14px; }

/* Contador */
.senac-gallery__counter {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--sgal-accent);
  color: var(--sgal-white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  pointer-events: none;
  box-shadow: 0 1px 6px rgba(0,0,0,0.25);
}

/* Legenda */
.senac-gallery__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--sgal-caption-bg);
  color: var(--sgal-white);
  font-size: 0.85rem;
  padding: 10px 18px;
  min-height: 36px;
  pointer-events: none;
}

.senac-gallery__caption:empty {
  display: none;
}

/* ——————————————————————————
   Thumbs / Carrossel inferior
—————————————————————————— */
.senac-gallery__thumbs-wrap {
  display: flex;
  align-items: center;
  background: var(--sgal-bg-thumbs);
  padding: 10px 0;
  border-top: 2px solid var(--sgal-accent);
}

.senac-gallery__thumb-nav {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--sgal-accent);
  font-size: 2.2rem;
  font-weight: 700;
  width: 36px;
  height: var(--sgal-thumb-size);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--sgal-transition);
  padding: 0;
}

.senac-gallery__thumb-nav:hover,
.senac-gallery__thumb-nav:focus-visible {
  color: var(--sgal-thumb-arrow-hover);
  outline: none;
}

.senac-gallery__thumb-nav:disabled {
  opacity: 0.22;
  cursor: default;
}

.senac-gallery__thumbs {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.senac-gallery__thumbs-inner {
  display: flex;
  gap: var(--sgal-thumb-gap);
  transition: transform var(--sgal-transition);
  will-change: transform;
  padding: 0 4px;
}

/* Thumb individual */
.senac-gallery__thumb {
  flex-shrink: 0;
  width: var(--sgal-thumb-size);
  height: var(--sgal-thumb-size);
  border-radius: 5px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  padding: 0;
  background: #ccc;
  transition: border-color var(--sgal-transition), opacity var(--sgal-transition), transform var(--sgal-transition);
  opacity: 0.55;
}

.senac-gallery__thumb:hover {
  opacity: 0.88;
  transform: scale(1.05);
}

.senac-gallery__thumb.is-active {
  border-color: var(--sgal-accent);
  opacity: 1;
  transform: scale(1.06);
  box-shadow: 0 0 0 2px var(--sgal-accent);
}

.senac-gallery__thumb:focus-visible {
  outline: 2px solid var(--sgal-accent);
  outline-offset: 2px;
}

.senac-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

/* ——————————————————————————
   LIGHTBOX — Tela Cheia
—————————————————————————— */
.sgal-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(8, 12, 20, 0.96);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
}

.sgal-lightbox.is-open {
  display: flex;
  animation: sgal-lb-in 0.22s ease;
}

@keyframes sgal-lb-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.sgal-lightbox__img {
  position: relative;
  z-index: 1;
  max-width: 94vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 48px rgba(0,0,0,0.5);
  display: block;
  cursor: zoom-out;
  animation: sgal-img-in 0.2s ease;
}

@keyframes sgal-img-in {
  from { transform: scale(0.96); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

.sgal-lightbox__close {
  position: fixed;
  top: 18px;
  right: 22px;
  background: var(--sgal-accent);
  border: none;
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--sgal-transition), transform var(--sgal-transition);
  z-index: 10;
  box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

.sgal-lightbox__close:hover {
  background: var(--sgal-accent-hover);
  transform: scale(1.1) rotate(90deg);
}

.sgal-lightbox__nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: var(--sgal-accent);
  border: none;
  color: #fff;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 2.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--sgal-transition), transform var(--sgal-transition);
  z-index: 10;
  box-shadow: 0 2px 14px rgba(0,0,0,0.4);
}

.sgal-lightbox__nav:hover {
  background: var(--sgal-accent-hover);
  transform: translateY(-50%) scale(1.1);
}

.sgal-lightbox__nav--prev { left: 18px; }
.sgal-lightbox__nav--next { right: 18px; }

/* Wrap da imagem no lightbox */
.sgal-lightbox__img-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 95vw;
  max-height: 88vh;
  overflow: hidden;
}

/* Blur de fundo no lightbox para fotos verticais */
.sgal-lightbox__bg-blur {
  position: absolute;
  inset: -10%;
  width: 120%;
  height: 120%;
  object-fit: cover;
  filter: blur(30px) brightness(0.5) saturate(1.2);
  z-index: 0;
  pointer-events: none;
}

/* Spinner de carregamento */
.sgal-lightbox__spinner {
  display: none;
  position: absolute;
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255,255,255,0.2);
  border-top-color: var(--sgal-accent);
  border-radius: 50%;
  animation: sgal-spin 0.7s linear infinite;
}

@keyframes sgal-spin {
  to { transform: rotate(360deg); }
}

/* Botão de download */
.sgal-lightbox__download {
  position: fixed;
  bottom: 22px;
  right: 22px;
  background: var(--sgal-accent);
  color: #fff;
  border: none;
  border-radius: 24px;
  padding: 9px 18px 9px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  z-index: 10;
  box-shadow: 0 2px 12px rgba(0,0,0,0.35);
  transition: background var(--sgal-transition), transform var(--sgal-transition);
  letter-spacing: 0.02em;
}

.sgal-lightbox__download:hover {
  background: var(--sgal-accent-hover);
  transform: translateY(-2px);
}

.sgal-lightbox__download:disabled {
  opacity: 0.4;
  cursor: wait;
  transform: none;
}

.sgal-lightbox__caption {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--sgal-caption-bg);
  color: #fff;
  font-size: 0.88rem;
  padding: 8px 22px;
  border-radius: 20px;
  max-width: 55vw;
  text-align: center;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sgal-lightbox__counter {
  position: fixed;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--sgal-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  pointer-events: none;
}

/* ——————————————————————————
   Responsivo
—————————————————————————— */
@media (max-width: 640px) {
  :root {
    --sgal-nav-size: 38px;
    --sgal-thumb-size: 70px;
  }
  .senac-gallery__nav { font-size: 1.5rem; }
  .senac-gallery__caption { font-size: 0.78rem; }
  .senac-gallery__title { font-size: 0.95rem; }
  .sgal-lightbox__nav { width: 40px; height: 40px; font-size: 1.6rem; }
  .sgal-lightbox__nav--prev { left: 6px; }
  .sgal-lightbox__nav--next { right: 6px; }
  .sgal-lightbox__caption { max-width: 90vw; font-size: 0.78rem; }
}

@media (max-width: 400px) {
  :root {
    --sgal-thumb-size: 58px;
    --sgal-thumb-gap: 5px;
  }
}

/* ——————————————————————————
   Skeleton loading
—————————————————————————— */
.senac-gallery__featured-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #d8d5cc 25%, #e4e1d8 50%, #d8d5cc 75%);
  background-size: 200% 100%;
  animation: sgal-shimmer 1.4s infinite;
  z-index: 0;
  pointer-events: none;
}

.senac-gallery__featured-wrap.is-loaded::before {
  display: none;
}

@keyframes sgal-shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}