/* =========================================
   GALERÍA Y LIGHTBOX — Portafolio Juanita González
   ========================================= */

/* ── Header de página de galería ── */
.gallery-page {
  padding-top: calc(var(--header-height-desktop) + 96px);
  padding-bottom: var(--space-3xl);
  padding-left: var(--gutter-desktop);
  padding-right: var(--gutter-desktop);
  max-width: var(--max-width);
  margin: 0 auto;
}

.gallery-header {
  margin-bottom: var(--space-lg);
}

.gallery-header__title {
  font-family: var(--font-primary);
  font-size: var(--font-h1);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: var(--space-xs);
}

.gallery-header__count {
  font-family: var(--font-primary);
  font-size: 14px;
  font-weight: var(--font-weight-light);
  color: var(--color-muted);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.gallery-header__divider {
  width: 100%;
  height: 1px;
  background-color: var(--color-border);
  border: none;
}

/* ── Grid de galería — Asimétrico ── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-top: var(--space-lg);
}

/* ── Celdas del grid ── */
/* Patrón A: Grande (8 cols) + Pequeño (4 cols) */
.gallery-item--large {
  grid-column: span 8;
}

.gallery-item--small {
  grid-column: span 4;
}

/* Patrón C: Tres iguales (4 cols cada una) */
.gallery-item--third {
  grid-column: span 4;
}

/* ── Item de galería ── */
.gallery-item {
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.gallery-item .img-placeholder,
.gallery-item img {
  width: 100%;
  display: block;
  transition: filter var(--transition-medium);
}

.gallery-item:hover .img-placeholder,
.gallery-item:hover img {
  filter: brightness(1.03);
}

/* Overlay hover */
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-overlay-light);
  opacity: 0;
  transition: opacity var(--transition-medium);
  pointer-events: none;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* Aspect ratios de los placeholders en grid */
.gallery-item--large .img-placeholder {
  aspect-ratio: 4 / 5;
}

.gallery-item--small .img-placeholder {
  aspect-ratio: 4 / 5;
}

.gallery-item--third .img-placeholder {
  aspect-ratio: 1 / 1;
}

/* ── LIGHTBOX ── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay-dark);
  z-index: var(--z-lightbox);
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.lightbox.is-open {
  display: flex;
  opacity: 1;
}

.lightbox.is-entering {
  opacity: 0;
}

/* Contenedor interior de lightbox */
.lightbox__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 90vw;
  max-height: 90vh;
}

/* Imagen en lightbox */
.lightbox__img {
  max-width: 90vw;
  max-height: 80vh;
  width: auto;
  height: auto;
  display: block;
  object-fit: contain;
  transform: scale(0.97);
  transition: transform 0.25s ease;
}

.lightbox.is-open .lightbox__img {
  transform: scale(1);
}

/* Placeholder en lightbox */
.lightbox__placeholder {
  max-width: 90vw;
  max-height: 80vh;
  min-width: 300px;
  min-height: 400px;
  width: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.97);
  transition: transform 0.25s ease;
}

.lightbox.is-open .lightbox__placeholder {
  transform: scale(1);
}

/* Caption del lightbox */
.lightbox__caption {
  font-family: var(--font-primary);
  font-size: var(--font-caption);
  font-weight: var(--font-weight-light);
  color: var(--color-caption-light);
  text-align: center;
  margin-top: var(--space-sm);
  letter-spacing: 0.05em;
}

/* Botón cerrar */
.lightbox__close {
  position: fixed;
  top: 24px;
  right: 24px;
  font-family: var(--font-primary);
  font-size: 32px;
  font-weight: var(--font-weight-light);
  color: #FFFFFF;
  cursor: pointer;
  line-height: 1;
  padding: 8px;
  background: none;
  border: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
  z-index: calc(var(--z-lightbox) + 1);
}

.lightbox__close:hover {
  color: var(--color-accent);
  transform: rotate(90deg);
}

/* Flechas de navegación */
.lightbox__prev,
.lightbox__next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-primary);
  font-size: 40px;
  font-weight: var(--font-weight-light);
  color: #FFFFFF;
  background: none;
  border: none;
  cursor: pointer;
  padding: 16px 24px;
  transition: color var(--transition-fast), transform var(--transition-fast);
  line-height: 1;
  user-select: none;
}

.lightbox__prev {
  left: 16px;
}

.lightbox__next {
  right: 16px;
}

.lightbox__prev:hover {
  color: var(--color-accent);
  transform: translateY(-50%) translateX(-4px);
}

.lightbox__next:hover {
  color: var(--color-accent);
  transform: translateY(-50%) translateX(4px);
}

/* ── Responsive Galería ── */
@media (max-width: 1023px) {
  .gallery-page {
    padding-top: calc(var(--header-height-mobile) + 64px);
    padding-left: var(--gutter-tablet);
    padding-right: var(--gutter-tablet);
    padding-bottom: var(--space-2xl);
  }

  /* Grid de 2 columnas en tablet */
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .gallery-item--large,
  .gallery-item--small,
  .gallery-item--third {
    grid-column: span 1;
  }

  .gallery-item--large .img-placeholder,
  .gallery-item--small .img-placeholder,
  .gallery-item--third .img-placeholder {
    aspect-ratio: 3 / 4;
  }

  .gallery-header__title {
    font-size: 2.5rem;
  }

  .lightbox__prev { left: 8px; }
  .lightbox__next { right: 8px; }
}

@media (max-width: 767px) {
  .gallery-page {
    padding-left: var(--gutter-mobile);
    padding-right: var(--gutter-mobile);
    padding-top: calc(var(--header-height-mobile) + 48px);
  }

  /* 1 columna en mobile */
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .gallery-item--large,
  .gallery-item--small,
  .gallery-item--third {
    grid-column: span 1;
  }

  .gallery-item--large .img-placeholder,
  .gallery-item--small .img-placeholder,
  .gallery-item--third .img-placeholder {
    aspect-ratio: 3 / 4;
  }

  .gallery-header__title {
    font-size: 1.75rem;
  }

  /* En mobile ocultar flechas del lightbox */
  .lightbox__prev,
  .lightbox__next {
    display: none;
  }

  .lightbox__close {
    top: 16px;
    right: 16px;
  }
}