/* ════════════════════════════════════════════════════════════
   gallery.css — Gallery page styles
   ════════════════════════════════════════════════════════════ */

/* ─── Page Hero ──────────────────────────────────────────── */
.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-3xl);
  background: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
}

.page-hero-inner {
  max-width: 700px;
}

.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(56px, 10vw, 120px);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.page-hero .section-label {
  margin-bottom: var(--space-md);
}

/* ─── Gallery Section ────────────────────────────────────── */
.gallery-section {
  background: var(--color-black);
  padding-block: var(--space-2xl) var(--section-pad-y);
}

/* ─── Filter Tabs ────────────────────────────────────────── */
.gallery-filters {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.gallery-filter-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
  cursor: none;
}

.gallery-filter-btn:hover {
  border-color: var(--color-white);
  color: var(--color-white);
}

.gallery-filter-btn.active {
  background: var(--color-red);
  border-color: var(--color-red);
  color: var(--color-white);
}

.filter-num {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

/* ─── Count ──────────────────────────────────────────────── */
.gallery-count {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: var(--space-xl);
}

/* ─── Grid ───────────────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

/* ─── Individual Item ────────────────────────────────────── */
.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: none;
  background: var(--color-surface);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out-expo), filter 0.3s ease;
  display: block;
}

.gallery-item:hover img {
  transform: scale(1.06);
  filter: brightness(0.75);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
  background: linear-gradient(to top, rgba(10,10,10,0.75) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.gallery-item-overlay span {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-white);
}

/* Filter animation */
.gallery-item.hidden {
  display: none;
}

@media (max-width: 1100px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 700px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 420px) {
  .gallery-grid { grid-template-columns: 1fr; }
}


/* ─── Lightbox ───────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox[hidden] { display: none; }

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 5, 5, 0.93);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox-content {
  position: relative;
  z-index: 1;
  max-width: min(90vw, 1200px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.lightbox-image {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: block;
}

.lightbox-caption {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  text-align: center;
}

/* Close button */
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  z-index: 2;
  font-size: 24px;
  line-height: 1;
  color: var(--color-white);
  opacity: 0.7;
  background: none;
  border: none;
  padding: 8px;
  transition: opacity var(--transition-base), transform var(--transition-base);
  cursor: none;
}

.lightbox-close:hover {
  opacity: 1;
  transform: scale(1.15);
}

/* Prev / Next */
.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  font-size: 28px;
  color: var(--color-white);
  opacity: 0.6;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-base), background var(--transition-base);
  cursor: none;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-prev:hover,
.lightbox-next:hover {
  opacity: 1;
  background: rgba(255,255,255,0.14);
}

@media (max-width: 600px) {
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
}