/* ==========================================================================
   Gallery — filterable grid with a lightweight lightbox
   ========================================================================== */

.gal-filters { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: var(--sp-6); }
.gal-filter {
  padding: 0.5rem 1.1rem; border-radius: var(--r-pill);
  font-family: var(--font-mono); font-size: var(--step--2);
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--paper-3);
  border: 1px solid var(--line);
  transition: color var(--dur-1), border-color var(--dur-1), background var(--dur-2) var(--ease-out);
}
.gal-filter:hover { color: var(--paper); border-color: var(--line-strong); }
.gal-filter[aria-pressed="true"] { background: var(--gold); color: var(--on-gold); border-color: var(--gold); }

.gal-grid {
  display: grid; gap: var(--sp-4);
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
}
.gal-item {
  position: relative; display: block; padding: 0;
  aspect-ratio: 1; border-radius: var(--r-md); overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-3);
  transition: transform var(--dur-3) var(--ease-out), border-color var(--dur-2), box-shadow var(--dur-3), opacity var(--dur-3);
}
.gal-item img {
  width: 100%; height: 100%; object-fit: contain; padding: 12%;
  transition: scale var(--dur-4) var(--ease-out);
}
.gal-item[data-fit="cover"] img { object-fit: cover; padding: 0; }
.gal-item:hover { transform: translateY(-4px); border-color: var(--line-strong);  }
.gal-item:hover img { scale: 1.05; }
.gal-item.is-hidden { display: none; }
.gal-item__cap {
  position: absolute; inset: auto 0 0; padding: 0.9rem 0.8rem 0.6rem;
  font-size: var(--step--2); text-align: left; color: var(--paper);
  background: linear-gradient(transparent, color-mix(in srgb, var(--void) 92%, transparent) 45%);
  opacity: 0; translate: 0 8px;
  transition: opacity var(--dur-2) var(--ease-out), translate var(--dur-3) var(--ease-out);
}
.gal-item:hover .gal-item__cap, .gal-item:focus-visible .gal-item__cap { opacity: 1; translate: 0; }

.gal-empty {
  grid-column: 1 / -1; padding: var(--sp-8) var(--sp-5); text-align: center;
  border: 1px dashed var(--line-strong); border-radius: var(--r-md);
  color: var(--paper-3);
}

/* --- Lightbox ------------------------------------------------------------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center;
  padding: clamp(1rem, 5vw, 3rem);
  background: color-mix(in srgb, var(--void) 92%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  animation: lb-in var(--dur-2) var(--ease-out);
}
.lightbox[hidden] { display: none; }
@keyframes lb-in { from { opacity: 0; } to { opacity: 1; } }
.lightbox__img {
  max-width: min(100%, 1100px); max-height: 78vh;
  width: auto; height: auto; object-fit: contain;
  border-radius: var(--r-md);
  animation: lb-pop var(--dur-3) var(--ease-drop);
}
@keyframes lb-pop { from { scale: 0.94; opacity: 0; } to { scale: 1; opacity: 1; } }
.lightbox__cap { margin-top: var(--sp-4); font-size: var(--step--1); color: var(--paper-2); text-align: center; }
.lightbox__close, .lightbox__nav {
  position: absolute; display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: var(--r-pill);
  border: 1px solid var(--line-strong); color: var(--paper);
  background: color-mix(in srgb, var(--ink-2) 80%, transparent);
  transition: color var(--dur-1), border-color var(--dur-1), scale var(--dur-2) var(--ease-drop);
}
.lightbox__close:hover, .lightbox__nav:hover { color: var(--gold); border-color: var(--gold); scale: 1.08; }
.lightbox__close { top: 1.25rem; right: 1.25rem; }
.lightbox__nav--prev { left: 1.25rem; top: 50%; translate: 0 -50%; }
.lightbox__nav--next { right: 1.25rem; top: 50%; translate: 0 -50%; }
.lightbox svg { width: 20px; height: 20px; }