/* ============================================================
   obras.css — Galería de Obras Terminadas
   ============================================================ */

/* ── Grid principal de proyectos ─────────────────────────── */
.obras-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-8);
}

@media (max-width: 1024px) {
  .obras-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .obras-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
  }
}

/* ── Tarjeta de obra ─────────────────────────────────────── */
.obra-card {
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-bg-alt);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: default;
}

.obra-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

/* ── Contenedor de imagen ────────────────────────────────── */
.obra-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #1a1a1a;
}

/* Cada imagen apilada */
.obra-img-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.45s ease;
  will-change: opacity;
  /* Preload hint */
  -webkit-backface-visibility: hidden;
}

.obra-img-wrap img.active {
  opacity: 1;
}

/* Overlay en hover (solo para cards con múltiples fotos) */
.obra-card.has-multiple:hover .obra-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 55%, rgba(0,0,0,0.45) 100%);
  pointer-events: none;
  z-index: 1;
}

/* ── Dots indicadores ────────────────────────────────────── */
.obra-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 2;
}

.obra-dots .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transition: background 0.3s ease, transform 0.3s ease;
  flex-shrink: 0;
}

.obra-dots .dot.active {
  background: #fff;
  transform: scale(1.25);
}

/* ── Info de la tarjeta ──────────────────────────────────── */
.obra-info {
  padding: var(--spacing-4) var(--spacing-5);
}

.obra-name {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0;
  letter-spacing: 0.01em;
}

/* ── Sección galería transversal (Opción B) ──────────────── */
.galeria-transversal {
  margin-top: var(--spacing-20);
}

.galeria-transversal .section-header {
  text-align: center;
  margin-bottom: var(--spacing-10);
}

.galeria-transversal .section-header h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-3);
}

.galeria-transversal .section-header p {
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* Grid mosaico de galería transversal */
.galeria-mosaico {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-3);
}

@media (max-width: 1024px) {
  .galeria-mosaico {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .galeria-mosaico {
    grid-template-columns: repeat(2, 1fr);
  }
}

.galeria-mosaico-item {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 4px;
  background: #1a1a1a;
}

.galeria-mosaico-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}

.galeria-mosaico-item:hover img {
  transform: scale(1.06);
}

/* Ítems ocultos inicialmente */
.galeria-mosaico-item.hidden {
  display: none;
}

/* Botón "Ver todas" */
.galeria-ver-mas {
  text-align: center;
  margin-top: var(--spacing-8);
}


/* ── Tarjetas ocultas por tandas ─────────────────────────── */
.obra-card.batch-hidden {
  display: none;
}

/* Botón Ver más proyectos */
.obras-ver-mas {
  text-align: center;
  margin-top: var(--spacing-10);
}
/* ── Lightbox simple ─────────────────────────────────────── */
.obra-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-6);
}

.obra-lightbox.open {
  display: flex;
}

.obra-lightbox img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 0 40px rgba(0,0,0,0.6);
}

.obra-lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.obra-lightbox-close:hover {
  opacity: 1;
}