/* ============================================================
   DREAMLANKA — PREMIUM GALLERY CSS
   Dark luxury · Gold accents · Anti-gravity immersive feel
   ============================================================ */

/* ─── CUSTOM PROPERTIES ─────────────────────────────────── */
:root {
  --gl-gold:        #c9a84c;
  --gl-gold-light:  #e8c97a;
  --gl-gold-glow:   rgba(201,168,76,.35);
  --gl-dark:        #06090f;
  --gl-navy:        #080f1e;
  --gl-navy-2:      #0c1530;
  --gl-white:       #ffffff;
  --gl-white-soft:  rgba(255,255,255,.85);
  
  /* Theme Variables — Default Light */
  --gl-page-bg:     #ffffff;
  --gl-page-text:   #060d1f;
  --gl-filter-bg:   rgba(255,255,255,0.85);
  --gl-filter-btn:  rgba(0,0,0,0.04);
  --gl-filter-border: rgba(0,0,0,0.08);
  --gl-filter-text: rgba(0,0,0,0.6);
  --gl-item-bg:     #f8f9fb;
  
  --gl-transition:  cubic-bezier(.16,1,.3,1);
  --gl-ease:        cubic-bezier(.25,.46,.45,.94);
}

[data-theme="dark"] {
  --gl-page-bg:     #06090f;
  --gl-page-text:   #ffffff;
  --gl-filter-bg:   rgba(6,9,15,0.88);
  --gl-filter-btn:  rgba(255,255,255,0.05);
  --gl-filter-border: rgba(255,255,255,0.06);
  --gl-filter-text: rgba(255,255,255,0.6);
  --gl-item-bg:     #0c1530;
}

/* ─── GALLERY PAGE WRAPPER ──────────────────────────────── */
.gallery-page {
  background: var(--gl-page-bg);
  color: var(--gl-page-text);
  overflow-x: hidden;
  font-family: 'Ubuntu', sans-serif;
  transition: background 0.4s ease, color 0.4s ease;
}

/* ─── CINEMATIC HERO ─────────────────────────────────────── */
.gallery-hero {
  position: relative;
  height: 52vh;
  min-height: 380px;
  max-height: 540px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--gl-dark);
}

.gallery-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  transform: scale(1.08);
  transition: transform 12s var(--gl-ease);
  will-change: transform;
}
.gallery-hero__bg.loaded { transform: scale(1); }

.gallery-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(6,9,15,1) 0%,
    rgba(6,9,15,.7) 40%,
    rgba(6,9,15,.25) 70%,
    rgba(6,9,15,.1) 100%
  );
  z-index: 2;
}

.gallery-hero__overlay-side {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,9,15,.6) 0%, transparent 60%);
  z-index: 2;
}

.gallery-hero__content {
  position: relative;
  z-index: 5;
  padding: 0 2rem;
  max-width: 800px;
  width: 100%;
}

.gallery-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--gl-gold);
  margin-bottom: .75rem;
  justify-content: center;
}
.gallery-hero__eyebrow::before,
.gallery-hero__eyebrow::after {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--gl-gold);
  border-radius: 99px;
}

.gallery-hero__title {
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 900;
  line-height: 1;
  color: var(--gl-white);
  letter-spacing: -.03em;
  margin-bottom: .75rem;
}
.gallery-hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--gl-gold), var(--gl-gold-light), var(--gl-gold));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gl-shimmer 4s linear infinite;
}

.gallery-hero__sub {
  font-size: .925rem;
  color: rgba(255,255,255,.6);
  max-width: 540px;
  margin: 0 auto 1.5rem;
  line-height: 1.65;
}

.gallery-hero__cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.gallery-hero__cta {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .65rem 1.75rem;
  background: var(--gl-gold);
  color: #000;
  font-weight: 800;
  font-size: .775rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: 99px;
  text-decoration: none;
  transition: all .35s var(--gl-transition);
  box-shadow: 0 8px 28px var(--gl-gold-glow);
}
.gallery-hero__cta:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 20px 60px var(--gl-gold-glow);
  background: var(--gl-gold-light);
}

.gallery-hero__scroll-hint {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: rgba(255,255,255,.4);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: default;
}

.gallery-hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent);
  animation: gl-scrollPulse 1.8s ease-in-out infinite;
}

/* Floating particles on hero */
.gallery-hero__particles {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  overflow: hidden;
}
.gallery-hero__particle {
  position: absolute;
  border-radius: 50%;
  background: var(--gl-gold);
  opacity: 0;
  animation: gl-particleFloat var(--dur, 8s) var(--delay, 0s) ease-in-out infinite;
}

/* ─── CATEGORY FILTERS ───────────────────────────────────── */
.gallery-filters {
  position: sticky;
  top: 64px;
  z-index: 40;
  background: var(--gl-filter-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gl-filter-border);
  padding: 1rem 0;
  transition: all .4s ease;
}

.gallery-filters__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
  padding: 0 2rem;
}

.gallery-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .35rem 1.15rem;
  background: var(--gl-filter-btn);
  border: 1px solid var(--gl-filter-border);
  color: var(--gl-filter-text);
  border-radius: 99px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .3s var(--gl-transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.gallery-filter-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gl-gold), var(--gl-gold-light));
  border-radius: inherit;
  opacity: 0;
  transition: opacity .3s ease;
}
.gallery-filter-btn span { position: relative; z-index: 1; }
.gallery-filter-btn svg { position: relative; z-index: 1; width: 14px; height: 14px; transition: transform .3s ease; }
.gallery-filter-btn:hover {
  border-color: var(--gl-gold);
  color: var(--gl-page-text);
  background: rgba(var(--gl-gold-rgb, 201,168,76), 0.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,.2);
}
.gallery-filter-btn.active {
  border-color: transparent;
  color: #000;
  box-shadow: 0 8px 28px var(--gl-gold-glow);
}
.gallery-filter-btn.active::before { opacity: 1; }
.gallery-filter-btn:hover svg { transform: rotate(8deg) scale(1.1); }

/* ─── GALLERY SECTION WRAPPER ────────────────────────────── */
.gallery-main {
  padding: 1.5rem 0 5rem;
  background: var(--gl-page-bg);
  position: relative;
  transition: background 0.4s ease;
}

.gallery-main::before {
  content: '';
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, rgba(201,168,76,.3), transparent);
}

/* ─── MASONRY GRID ──────────────────────────────────────── */
.gallery-masonry {
  columns: 3;
  column-gap: 1.125rem;
  padding: 0 max(1.5rem, calc((100vw - 1440px) / 2 + 1.5rem));
}

@media (max-width: 1200px) { .gallery-masonry { columns: 3; } }
@media (max-width: 900px)  { .gallery-masonry { columns: 2; } }
@media (max-width: 560px)  { .gallery-masonry { columns: 1; } }

/* ─── GALLERY ITEM ──────────────────────────────────────── */
.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.125rem;
  border-radius: 18px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  background: var(--gl-item-bg);
  transition:
    transform .55s var(--gl-transition),
    box-shadow .55s var(--gl-transition),
    opacity .55s var(--gl-transition);
  will-change: transform, opacity;
}

/* Size variants — visual rhythm driven by inline height values */

.gallery-item.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(.92);
}
.gallery-item.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

/* Scroll-reveal initial state */
.gallery-item.gl-reveal {
  opacity: 0;
  transform: scale(.98);
  transition:
    opacity .75s var(--gl-transition),
    transform .75s var(--gl-transition),
    box-shadow .55s var(--gl-transition);
}
.gallery-item.gl-reveal.in-view {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Hover lift + glow */
.gallery-item:hover {
  transform: scale(1.02);
  box-shadow:
    0 15px 45px rgba(0,0,0,0.1),
    0 0 0 1px rgba(201,168,76,.2),
    0 0 40px rgba(201,168,76,.05);
  z-index: 10;
}

/* ─── IMAGE INSIDE ITEM ─────────────────────────────────── */
.gallery-item__img-wrap {
  position: relative;
  overflow: hidden;
  border-radius: inherit;
}
.gallery-item__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .8s var(--gl-ease), filter .5s ease;
  will-change: transform;
  /* Blur-up placeholder effect */
  filter: blur(0);
}
.gallery-item__img.lazy-loading {
  filter: blur(12px) saturate(.5);
}
.gallery-item__img.lazy-loaded {
  filter: blur(0) saturate(1);
}
.gallery-item:hover .gallery-item__img {
  transform: scale(1.09) rotate(.8deg);
}

/* ─── OVERLAY ───────────────────────────────────────────── */
.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(6,9,15,.92) 0%,
    rgba(6,9,15,.45) 40%,
    rgba(6,9,15,.05) 70%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity .4s var(--gl-ease);
  z-index: 2;
}
.gallery-item:hover .gallery-item__overlay { opacity: 1; }

/* ─── GLASS CAPTION ─────────────────────────────────────── */
.gallery-item__caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: .85rem .85rem 1rem;  /* reduced from 1.25rem */
  z-index: 3;
  transform: translateY(100%);
  transition: transform .45s var(--gl-transition);
}
.gallery-item:hover .gallery-item__caption { transform: translateY(0); }

.gallery-item__caption-glass {
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  padding: .75rem .85rem;      /* reduced from 1rem 1.125rem */
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
}

.gallery-item__category {
  font-size: .58rem;            /* reduced from .62rem */
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gl-gold);
  margin-bottom: .25rem;        /* reduced from .35rem */
  display: flex;
  align-items: center;
  gap: .35rem;
}
.gallery-item__category::before {
  content: '';
  width: 16px;
  height: 1.5px;
  background: var(--gl-gold);
  border-radius: 99px;
}

.gallery-item__title {
  font-size: .95rem;            /* reduced from 1.05rem */
  font-weight: 700;
  color: var(--gl-white);
  line-height: 1.25;
  letter-spacing: -.01em;
  margin-bottom: .25rem;        /* reduced from .35rem */
}

.gallery-item__meta {
  font-size: .68rem;            /* reduced from .72rem */
  color: rgba(255,255,255,.55);
  display: flex;
  align-items: center;
  gap: .3rem;
}
.gallery-item__meta svg { width: 11px; height: 11px; color: var(--gl-gold); }

/* ─── CATEGORY BADGE (top-left always visible) ─────────── */
.gallery-item__badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 4;
  background: rgba(6,9,15,.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--gl-gold);
  font-size: .6rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: .3rem .7rem;
  border-radius: 99px;
  transition: all .3s ease;
}
.gallery-item:hover .gallery-item__badge {
  background: var(--gl-gold);
  color: #000;
  border-color: transparent;
}

/* Expand icon */
.gallery-item__expand {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 4;
  width: 34px;
  height: 34px;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gl-white);
  opacity: 0;
  transform: scale(.7);
  transition: all .35s var(--gl-transition);
}
.gallery-item:hover .gallery-item__expand {
  opacity: 1;
  transform: scale(1);
}
.gallery-item__expand svg { width: 14px; height: 14px; }



/* ─── LIGHTBOX ──────────────────────────────────────────── */
.gl-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4,6,12,.97);
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s var(--gl-ease);
  backdrop-filter: blur(0);
}
.gl-lightbox.open {
  opacity: 1;
  pointer-events: all;
  backdrop-filter: blur(6px);
}

.gl-lightbox__inner {
  position: relative;
  max-width: 1200px;
  width: 92vw;
  max-height: 90vh;
  transform: scale(.92) translateY(24px);
  transition: transform .45s var(--gl-transition);
}
.gl-lightbox.open .gl-lightbox__inner {
  transform: scale(1) translateY(0);
}

.gl-lightbox__img {
  width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 40px 120px rgba(0,0,0,.8);
  display: block;
}

.gl-lightbox__caption-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0 0;
  gap: 1rem;
}

.gl-lightbox__caption-info { flex: 1; }
.gl-lightbox__caption-cat {
  font-size: .65rem;
  font-weight: 900;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gl-gold);
  margin-bottom: .3rem;
}
.gl-lightbox__caption-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--gl-white);
  line-height: 1.3;
}

.gl-lightbox__close {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,.7);
  transition: all .3s ease;
  flex-shrink: 0;
}
.gl-lightbox__close:hover { background: var(--gl-gold); color: #000; border-color: transparent; }
.gl-lightbox__close svg { width: 18px; height: 18px; }

/* Nav arrows */
.gl-lightbox__nav {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  cursor: pointer;
  transition: all .3s var(--gl-transition);
  z-index: 10;
}
.gl-lightbox__nav:hover { background: var(--gl-gold); color: #000; border-color: transparent; transform: translateY(-50%) scale(1.08); }
.gl-lightbox__nav svg { width: 20px; height: 20px; }
.gl-lightbox__nav--prev { left: -70px; }
.gl-lightbox__nav--next { right: -70px; }

@media (max-width: 900px) {
  .gl-lightbox__nav--prev { left: -15px; }
  .gl-lightbox__nav--next { right: -15px; }
}

/* ─── EMPTY STATE ───────────────────────────────────────── */
.gallery-empty {
  text-align: center;
  padding: 8rem 2rem;
}
.gallery-empty__icon {
  width: 80px; height: 80px;
  background: rgba(201,168,76,.08);
  border: 1px solid rgba(201,168,76,.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--gl-gold);
}
.gallery-empty__icon svg { width: 36px; height: 36px; }
.gallery-empty__title { font-size: 1.75rem; font-weight: 800; color: var(--gl-page-text); margin-bottom: .75rem; }
.gallery-empty__desc  { color: var(--gl-filter-text); font-size: 1rem; line-height: 1.7; }

/* ─── SECTION DIVIDER ───────────────────────────────────── */
.gallery-divider {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0 max(2rem, calc((100vw - 1440px) / 2 + 2rem));
  margin: 4rem 0 2rem;
}
.gallery-divider__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(201,168,76,.3), transparent);
}
.gallery-divider__text {
  font-size: .65rem;
  font-weight: 900;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--gl-gold);
  white-space: nowrap;
}

/* ─── COUNT INDICATOR ───────────────────────────────────── */


/* ─── KEYFRAMES ─────────────────────────────────────────── */
@keyframes gl-fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes gl-shimmer {
  0%   { background-position: 200% center; }
  100% { background-position:   0% center; }
}
@keyframes gl-scrollPulse {
  0%,100% { opacity: .4; height: 40px; }
  50%      { opacity: .9; height: 50px; }
}
@keyframes gl-particleFloat {
  0%   { opacity: 0; transform: translateY(0) scale(0); }
  15%  { opacity: var(--max-op, .7); }
  85%  { opacity: var(--max-op, .7); }
  100% { opacity: 0; transform: translateY(-120px) scale(1.5); }
}
@keyframes gl-filterPop {
  0%   { transform: scale(.96); opacity: 0; }
  100% { transform: scale(1);   opacity: 1; }
}
.gallery-item.filter-pop {
  animation: gl-filterPop .45s var(--gl-transition) forwards;
}

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .gallery-hero__content { padding: 4rem 1.5rem 2rem; }
  .gallery-hero { height: auto; min-height: 380px; padding-top: 60px; }
  .gallery-hero__title  { letter-spacing: -.02em; font-size: 2.15rem; line-height: 1.1; margin-bottom: 1rem; }
  .gallery-hero__cta-row { flex-direction: column; align-items: center; gap: 1.25rem; }
  .gallery-masonry { column-gap: .75rem; padding: 0 1rem; }
  .gallery-item    { margin-bottom: 1.125rem; }
  
  /* Remove floating particles and scroll hints on mobile */
  .gallery-hero__particles,
  .gallery-hero__scroll-hint {
      display: none !important;
  }
  
  /* Capping heights on mobile to prevent overly tall vertical images */
  .gallery-item__img-wrap {
      height: 260px !important;
  }
}