/* ==========================================================================
   gallery.css — Art Gallery section
   zarathushtra.com
   Loads after base.css. Covers: page title, gallery section headings,
   thumbnail grid, lightbox, and gallery-specific responsive overrides.
   ========================================================================== */


/* --------------------------------------------------------------------------
   PAGE HEADER
   -------------------------------------------------------------------------- */
.page-title {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.page-subtitle {
  font-size: 0.9rem;
  font-style: italic;
  font-weight: 300;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-bottom: 2.8rem;
}


/* --------------------------------------------------------------------------
   GALLERY SECTION HEADING
   -------------------------------------------------------------------------- */
.gallery-section-title {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  text-align: center;
  margin-bottom: 1.4rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--gold-rule);
}


/* --------------------------------------------------------------------------
   THUMBNAIL ROWS — 3-4-4-3 fixed layout
   -------------------------------------------------------------------------- */
:root {
  --thumb-size: 120px;
}

.thumb-section {
  margin-bottom: 3.5rem;
}

.thumb-row {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 10px;
}

.thumb-item {
  width: var(--thumb-size);
  height: var(--thumb-size);
  flex: 0 0 var(--thumb-size);
  cursor: pointer;
  overflow: hidden;
  border: 1px solid var(--gold-dim);
  background: var(--purple1);
  transition: border-color 0.2s, transform 0.2s;
}

.thumb-item:hover {
  border-color: var(--gold);
  transform: scale(1.05);
}

.thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.2s;
}

.thumb-item:hover img { opacity: 0.82; }


/* --------------------------------------------------------------------------
   LIGHTBOX
   -------------------------------------------------------------------------- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,3,20,0.96);
  z-index: 500;
}

.lightbox.open { display: block; }

.lb-img-wrap {
  position: absolute;
  top: 0; left: 0; right: 0;
  bottom: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3.5rem 2rem 1rem;
  pointer-events: none;
}

.lb-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border: 1px solid var(--gold-dim);
  display: block;
  pointer-events: auto;
}

.lb-controls {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  border-top: 1px solid var(--gold-dim);
  background: rgba(15,6,32,0.85);
}

.lb-btn {
  font-family: var(--font-head);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  background: transparent;
  border: 1px solid var(--gold-dim);
  padding: 0.5rem 1.5rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.lb-btn:hover {
  background: rgba(201,168,76,0.1);
  border-color: var(--gold);
  color: var(--gold2);
}

.lb-counter {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-dim);
  min-width: 60px;
  text-align: center;
}

.lb-close {
  position: absolute;
  top: 1.1rem; right: 1.5rem;
  font-family: var(--font-head);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(201,168,76,0.45);
  background: transparent;
  border: 1px solid rgba(201,168,76,0.2);
  padding: 0.35rem 0.85rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.lb-close:hover { color: var(--gold); border-color: var(--gold); }


/* --------------------------------------------------------------------------
   RESPONSIVE — Mobile (≤767px)
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  :root         { --thumb-size: 80px; }
  .thumb-row    { gap: 6px; flex-wrap: wrap; }
}