/* =========================================================================
   SOMBRAS OSIRIS · Galería de trabajos — estilo editorial / masonry
   ========================================================================= */

.gallery-filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: clamp(30px, 4vw, 46px); }
.gallery-filters button {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  color: var(--text-dim); background: color-mix(in oklab, var(--surface) 70%, transparent);
  border: 1px solid var(--line2); padding: 10px 18px; border-radius: 100px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px; backdrop-filter: blur(8px);
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}
.gallery-filters button:hover { color: var(--text); border-color: var(--accent-line); transform: translateY(-2px); }
.gallery-filters button.active { background: var(--accent); color: var(--on-accent); border-color: var(--accent); box-shadow: 0 8px 24px var(--accent-glow); }
.gallery-filters button .count {
  font-size: 10.5px; padding: 1px 7px; border-radius: 100px; line-height: 1.6;
  background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-line);
}
.gallery-filters button.active .count { background: rgba(0,0,0,.16); color: var(--on-accent); border-color: transparent; }

/* Cuadrícula uniforme y limpia */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 1100px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px)  { .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; } }
@media (max-width: 420px)  { .gallery-grid { grid-template-columns: 1fr; } }

.gtile {
  position: relative; display: block; width: 100%; aspect-ratio: 4 / 3; margin: 0; padding: 0;
  overflow: hidden; border-radius: var(--radius-lg); border: 1px solid var(--line);
  cursor: pointer; background: var(--surface2);
  animation: gtileIn .5s cubic-bezier(.16,1,.3,1) both;
  transition: border-color var(--t-mid), box-shadow var(--t-mid), transform var(--t-mid);
}
.gtile:hover { border-color: var(--accent-line); box-shadow: var(--shadow-md); transform: translateY(-4px); }
@keyframes gtileIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { .gtile { animation: none; } }

.gtile img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .8s cubic-bezier(.16,1,.3,1); }
.gtile:hover img { transform: scale(1.07); }

.gtile .gtile-overlay {
  position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 16px; gap: 8px;
  background: linear-gradient(to top, rgba(8,6,4,.82) 0%, rgba(8,6,4,.25) 45%, transparent 70%);
  opacity: 0; transition: opacity var(--t-mid);
}
.gtile:hover .gtile-overlay { opacity: 1; }
.gtile .gtile-cat {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent-2); transform: translateY(10px); transition: transform var(--t-mid);
}
.gtile .gtile-title {
  font-family: var(--font-display); font-size: 17px; font-weight: 600; color: #fff; line-height: 1.2;
  transform: translateY(10px); transition: transform var(--t-mid) .04s;
}
.gtile:hover .gtile-cat, .gtile:hover .gtile-title { transform: translateY(0); }
.gtile .zoom {
  position: absolute; top: 12px; right: 12px; z-index: 3; width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.28); color: #fff;
  display: flex; align-items: center; justify-content: center; backdrop-filter: blur(6px);
  opacity: 0; transform: scale(.7) rotate(-20deg); transition: opacity var(--t-mid), transform var(--t-mid);
}
.gtile:hover .zoom { opacity: 1; transform: scale(1) rotate(0); }
.gtile .zoom svg { width: 17px; height: 17px; }

.gallery-empty { text-align: center; color: var(--muted); font-family: var(--font-mono); font-size: 13px; padding: 40px 0; }

/* Botón "Ver más" + contador */
.gallery-more { display: flex; flex-direction: column; align-items: center; gap: 14px; margin-top: 38px; }
.gallery-more .btn-more {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body); font-weight: 600; font-size: 15px;
  color: var(--text); background: var(--surface); border: 1px solid var(--line2);
  padding: 14px 28px; border-radius: 100px; cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}
.gallery-more .btn-more:hover { border-color: var(--accent-line); background: var(--surface2); transform: translateY(-2px); }
.gallery-more .btn-more svg { width: 18px; height: 18px; color: var(--accent); }
.gallery-more .shown-count { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .08em; color: var(--muted); }

/* ---- Lightbox ---- */
.lightbox {
  position: fixed; inset: 0; z-index: 1000; display: none;
  align-items: center; justify-content: center;
  background: rgba(6,5,3,.92); backdrop-filter: blur(6px);
  padding: 24px;
}
.lightbox.open { display: flex; animation: lbFade .2s ease; }
@keyframes lbFade { from { opacity: 0; } to { opacity: 1; } }
.lightbox img { max-width: min(1100px, 92vw); max-height: 82vh; object-fit: contain; border-radius: var(--radius); box-shadow: 0 30px 90px rgba(0,0,0,.6); }
.lb-close, .lb-prev, .lb-next {
  position: absolute; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2); color: #fff;
  width: 50px; height: 50px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background var(--t-fast), transform var(--t-fast);
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover { background: rgba(255,255,255,.18); }
.lb-close { top: 22px; right: 26px; }
.lb-prev { left: 22px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 22px; top: 50%; transform: translateY(-50%); }
.lb-prev:hover { transform: translateY(-50%) scale(1.08); }
.lb-next:hover { transform: translateY(-50%) scale(1.08); }
.lb-close svg, .lb-prev svg, .lb-next svg { width: 22px; height: 22px; }
.lb-counter {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; color: rgba(255,255,255,.75);
  background: rgba(0,0,0,.4); padding: 7px 16px; border-radius: 100px; border: 1px solid rgba(255,255,255,.15);
}
@media (max-width: 640px) {
  .lb-prev, .lb-next { width: 42px; height: 42px; }
  .lb-prev { left: 10px; } .lb-next { right: 10px; }
  .lb-close { top: 14px; right: 14px; }
}