/* ============================================================
   gallery.css — Galería de fotos y lightbox
   ============================================================ */

/* ── Hero de la galería ───────────────────────────────────── */
.gallery-hero {
  background:
    radial-gradient(120% 120% at 85% 10%, rgba(47, 122, 77, 0.35) 0%, transparent 55%),
    linear-gradient(160deg, var(--color-primary) 0%, var(--color-forest-deep) 100%);
  color: #fff;
  padding-block: clamp(3.25rem, 8vw, 5.5rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.gallery-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 37px,
    rgba(255, 255, 255, 0.035) 38px
  );
  pointer-events: none;
}

.gallery-hero::after {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  right: -120px;
  bottom: -160px;
  background: radial-gradient(circle, rgba(194, 106, 43, 0.30) 0%, transparent 70%);
  pointer-events: none;
}

.gallery-hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.gallery-hero h1 { color: #fff; margin-bottom: 0.9rem; font-weight: 500; max-width: none; }
.gallery-hero h1 em { font-style: italic; font-weight: 400; color: var(--color-accent-light); }

.gallery-hero p {
  font-size: var(--text-lg);
  color: rgba(244, 239, 227, 0.8);
  max-width: 55ch;
  margin-inline: auto;
}

/* ── Tabs de año ──────────────────────────────────────────── */
.gallery-controls {
  background: rgba(244, 239, 227, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-h);
  z-index: 50;
}

.gallery-controls-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  overflow-x: auto;
  scrollbar-width: none;
}

.gallery-controls-inner::-webkit-scrollbar { display: none; }

.year-tabs {
  display: flex;
  gap: 0.25rem;
  padding-block: 0.75rem;
  white-space: nowrap;
}

.year-tab {
  padding: 0.45rem 1.05rem;
  border-radius: 100px;
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.year-tab:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.year-tab.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ── Contenido principal ──────────────────────────────────── */
.gallery-main {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: 2.5rem var(--container-pad) 4rem;
}

/* ── Grupo de sesión ──────────────────────────────────────── */
.gallery-group {
  margin-bottom: 3rem;
}

.gallery-group-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.gallery-year-badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  background: var(--color-accent-light);
  color: var(--color-accent-deep);
  border-radius: 100px;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid rgba(194, 106, 43, 0.25);
}

.gallery-date {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  flex: 1;
}

.gallery-count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ── Grid de fotos ────────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.5rem;
}

.gallery-item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  background: var(--color-border);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
  display: block;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(14, 51, 32, 0);
  transition: background 0.25s ease;
  pointer-events: none;
}

.gallery-item:hover img { transform: scale(1.07); }
.gallery-item:hover::after { background: rgba(14, 51, 32, 0.22); }

/* ── Mensaje vacío ────────────────────────────────────────── */
.gallery-empty {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

/* ── Lightbox ─────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.93);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.lightbox.is-open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  max-width: 92vw;
  max-height: 92vh;
}

#lb-img {
  max-width: 90vw;
  max-height: 84vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 60px rgba(0,0,0,0.6);
  display: block;
}

.lightbox-caption {
  color: rgba(255,255,255,0.55);
  font-size: var(--text-sm);
  text-align: center;
}

/* Botones del lightbox */
.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: fixed;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  line-height: 1;
  backdrop-filter: blur(4px);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255,255,255,0.25);
  transform: scale(1.1);
}

.lightbox-close { top: 1.25rem; right: 1.25rem; font-size: 1rem; }
.lightbox-prev  { left: 1rem;  top: 50%; transform: translateY(-50%); font-size: 1.5rem; }
.lightbox-next  { right: 1rem; top: 50%; transform: translateY(-50%); font-size: 1.5rem; }

.lightbox-prev:hover { transform: translateY(-50%) scale(1.1); }
.lightbox-next:hover { transform: translateY(-50%) scale(1.1); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 639px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.35rem;
  }

  .gallery-date { font-size: var(--text-xl); }

  .lightbox-prev { left: 0.5rem; }
  .lightbox-next { right: 0.5rem; }
}

@media (min-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
}