.gf-ig-grid{
  /*
    Open-album thumbnails: Justified layout (no empty slots).

    - Small albums (1..4): rendered as a single row of large square tiles (handled by JS).
    - Large albums (5+): rendered as justified rows (constant height, variable widths) so the
      last row also fills the full width (no empty slots at the end).

    Note: actual sizing is computed by JS and applied inline per tile.
  */
  /* Tile spacing (thin white separators). */
  --gf-ig-gap:4px;
  --gf-ig-min-base:280px;
  --gf-ig-row-h:280px;

  display:block !important;
}

.gf-ig-jrow{
  display:flex;
  gap:var(--gf-ig-gap);
  margin:0 0 var(--gf-ig-gap) 0;
  align-items:stretch;
}

.gf-ig-jrow:last-child{ margin-bottom:0; }

.gf-ig-item{
  display:block;
  flex:0 0 auto;
  height:var(--gf-ig-row-h);
  border-radius:16px;
  overflow:hidden;
  background:#f3f3f3;
  box-shadow:0 1px 2px rgba(0,0,0,0.06);
}

.gf-ig-item img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  transition: transform .18s ease;
}

.gf-ig-item:hover img{
  transform: scale(1.04);
}
.gf-ig-error{
  padding:12px;
  border:1px solid #ddd;
  background:#fff;
}

.gf-ig-loading{
  padding:12px;
  border:1px solid rgba(0,0,0,0.08);
  background:#fff;
}

.gf-ig-loadmore{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:12px;
  margin:18px 0 0;
}
.gf-ig-loadmore-btn{
  appearance:none;
  border:0;
  background:#2271b1;
  color:#fff;
  border-radius:999px;
  padding:10px 18px;
  cursor:pointer;
  font-weight:600;
}
.gf-ig-loadmore-btn:hover{ filter:brightness(0.96); }
.gf-ig-loadmore-btn:disabled{ opacity:0.6; cursor:default; }
.gf-ig-sentinel{ width:1px; height:1px; }

/* Parent/child album cards */
.gf-ig-cards{
  display:grid;
  grid-template-columns:repeat(var(--gf-ig-card-cols,3),minmax(0,1fr));
  gap:16px;
}
.gf-ig-card{
  display:flex;
  flex-direction:column;
  border-radius:18px;
  overflow:hidden;
  background:#fff;
  border:1px solid rgba(0,0,0,0.06);
  box-shadow:0 2px 6px rgba(0,0,0,0.06);
}
.gf-ig-card-thumb{
  width:100%;
  background:#f3f3f3;
}
.gf-ig-card-thumb img{
  width:100%;
  height:100%;
  display:block;
  aspect-ratio:16/9;
  object-fit:cover;
  transition: transform .18s ease;
}

.gf-ig-card:hover .gf-ig-card-thumb img{
  transform: scale(1.03);
}
.gf-ig-card-thumb-placeholder{
  width:100%;
  height:100%;
}
.gf-ig-card-meta{
  padding:14px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  flex:1;
}
.gf-ig-card-title{
  font-size:18px;
  font-weight:600;
  line-height:1.2;
  margin-bottom:8px;
}
.gf-ig-card-count{
  color:#666;
  margin-bottom:14px;
}
.gf-ig-card-open,
.gf-ig-back{
  appearance:none;
  border:1px solid rgba(0,0,0,0.12);
  background:#fff;
  border-radius:999px;
  padding:8px 14px;
  cursor:pointer;
}

/* Force "Open" button visibility (some themes override button colors). */
.gf-ig-card-open{
  background:#2271b1 !important;
  border-color:#2271b1 !important;
  color:#fff !important;
  font-weight:600;
  font-size:14px !important;
  line-height:1.1 !important;
  display:inline-flex !important;
  align-items:center !important;
  justify-content:center !important;
}
.gf-ig-card-open:hover{
  background:#135e96 !important;
  border-color:#135e96 !important;
  color:#fff !important;
}

/* Keep back button readable across themes. */
.gf-ig-back{
  color:#111 !important;
}
.gf-ig-back:hover{ background:#f7f7f7; }
.gf-ig-album-title{
  font-size:22px;
  font-weight:600;
  margin:14px 0;
}

/* --- Search ------------------------------------------------------------- */
.gf-ig-toolbar{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:12px;
  margin:10px 0 14px;
}

.gf-ig-sort{
  display:flex;
  align-items:center;
  gap:8px;
}
.gf-ig-sort-buttons{
  flex-wrap:wrap;
  justify-content:flex-end;
}
.gf-ig-sort-label{
  color:#555;
  font-weight:600;
  font-size:14px;
}
.gf-ig-sort-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid rgba(0,0,0,0.12);
  background:#fff;
  color:#111;
  text-decoration:none;
  font-size:14px;
  font-weight:600;
  line-height:1;
}
.gf-ig-sort-btn:hover{
  background:#f7f7f7;
}
.gf-ig-sort-btn.is-active{
  background:#2271b1;
  border-color:#2271b1;
  color:#fff;
}
.gf-ig-sort-btn.is-active:hover{
  background:#135e96;
  border-color:#135e96;
  color:#fff;
}
.gf-ig-sort-select{
  padding:8px 10px;
  border-radius:12px;
  border:1px solid rgba(0,0,0,0.12);
  background:#fff;
  outline:none;
}
.gf-ig-sort-select:focus{
  border-color:#2271b1;
  box-shadow:0 0 0 2px rgba(34,113,177,0.18);
}
.gf-ig-search{
  width:min(320px, 100%);
}
.gf-ig-search-input{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(0,0,0,0.12);
  background:#fff;
  outline:none;
}
.gf-ig-search-input:focus{
  border-color:#2271b1;
  box-shadow:0 0 0 2px rgba(34,113,177,0.18);
}
.gf-ig-search-empty{
  margin-top:12px;
  padding:12px;
  border:1px dashed rgba(0,0,0,0.18);
  border-radius:14px;
  background:#fff;
  color:#555;
}

@media (max-width: 1024px){
  .gf-ig-cards{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

/* --- Lightbox ------------------------------------------------------------ */
#gf-ig-lightbox{
  position:fixed;
  inset:0;
  z-index:999999;
  display:none;
}
#gf-ig-lightbox.is-open{ display:block; }
#gf-ig-lightbox .gf-ig-lb-backdrop{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,0.85);
}
#gf-ig-lightbox .gf-ig-lb-stage{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:12px;
}
#gf-ig-lightbox .gf-ig-lb-media{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
}
#gf-ig-lightbox .gf-ig-lb-img{
  max-width:calc(100vw - 80px);
  max-height:calc(100vh - 96px);
  width:auto;
  height:auto;
  border-radius:12px;
  box-shadow:0 10px 40px rgba(0,0,0,0.45);
  background:#111;
}
#gf-ig-lightbox .gf-ig-lb-counter{
  position:absolute;
  bottom:18px;
  left:50%;
  transform:translateX(-50%);
  color:#fff;
  font-size:14px;
  line-height:1;
  padding:0;
  background:transparent;
  text-shadow:0 1px 3px rgba(0,0,0,0.65);
  pointer-events:none;
}
#gf-ig-lightbox button{
  appearance:none;
  border:none;
  background:transparent;
  cursor:pointer;
  padding:0;
}
#gf-ig-lightbox .gf-ig-lb-close{
  position:absolute;
  top:14px;
  right:14px;
  width:44px;
  height:44px;
  font-size:32px;
  line-height:44px;
  color:#2f7de1;
  opacity:0.95;
  text-shadow:0 2px 8px rgba(0,0,0,0.65);
  user-select:none;
}
#gf-ig-lightbox .gf-ig-lb-close:hover{
  opacity:1;
  transform:scale(1.05);
}
#gf-ig-lightbox .gf-ig-lb-prev,
#gf-ig-lightbox .gf-ig-lb-next{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:120px;
  height:120px;
  font-size:90px;
  line-height:120px;
  color:#2f7de1;
  opacity:0.9;
  text-shadow:0 2px 10px rgba(0,0,0,0.75);
  user-select:none;
}
#gf-ig-lightbox .gf-ig-lb-prev:hover,
#gf-ig-lightbox .gf-ig-lb-next:hover{
  opacity:1;
  transform:translateY(-50%) scale(1.06);
}
#gf-ig-lightbox .gf-ig-lb-prev{ left:18px; }
#gf-ig-lightbox .gf-ig-lb-next{ right:18px; }

#gf-ig-lightbox .gf-ig-lb-prev-in,
#gf-ig-lightbox .gf-ig-lb-next-in{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:44px;
  height:44px;
  font-size:34px;
  line-height:44px;
  color:#2f7de1;
  opacity:0;
  text-shadow:0 2px 10px rgba(0,0,0,0.75);
  transition:opacity .14s ease, transform .14s ease;
  user-select:none;
}
#gf-ig-lightbox .gf-ig-lb-prev-in{ left:10px; }
#gf-ig-lightbox .gf-ig-lb-next-in{ right:10px; }

#gf-ig-lightbox .gf-ig-lb-media:hover .gf-ig-lb-prev-in,
#gf-ig-lightbox .gf-ig-lb-media:hover .gf-ig-lb-next-in{
  opacity:1;
}

/* Touch devices: no hover, show on-image arrows */
@media (hover: none), (pointer: coarse){
  #gf-ig-lightbox .gf-ig-lb-prev-in,
  #gf-ig-lightbox .gf-ig-lb-next-in{ opacity:1; }
}

#gf-ig-lightbox.is-single .gf-ig-lb-prev,
#gf-ig-lightbox.is-single .gf-ig-lb-next,
#gf-ig-lightbox.is-single .gf-ig-lb-prev-in,
#gf-ig-lightbox.is-single .gf-ig-lb-next-in{
  display:none;
}
@media (max-width: 640px){
  #gf-ig-lightbox .gf-ig-lb-stage{ padding:8px; }
  #gf-ig-lightbox .gf-ig-lb-img{ max-width:calc(100vw - 16px); max-height:calc(100vh - 96px); }
  #gf-ig-lightbox .gf-ig-lb-prev,
  #gf-ig-lightbox .gf-ig-lb-next{
    width:74px;
    height:74px;
    font-size:58px;
    line-height:74px;
  }
  #gf-ig-lightbox .gf-ig-lb-prev{ left:6px; }
  #gf-ig-lightbox .gf-ig-lb-next{ right:6px; }
  #gf-ig-lightbox .gf-ig-lb-prev-in,
  #gf-ig-lightbox .gf-ig-lb-next-in{
    width:40px;
    height:40px;
    font-size:30px;
    line-height:40px;
  }
}
@media (max-width: 640px){
  .gf-ig-cards{ grid-template-columns:repeat(1,minmax(0,1fr)); }
}
@media (max-width: 1024px){
  .gf-ig-grid{ --gf-ig-min:220px; }
}
@media (max-width: 640px){
  .gf-ig-grid{ --gf-ig-min:160px; }
}


/* Navigation & UX tweaks (v0.4.2) */
.gf-ig-anchor{scroll-margin-top:90px;}

.gf-ig-card-link{display:flex; text-decoration:none; color:inherit;}
.gf-ig-card-link:focus{outline:2px solid rgba(0,0,0,0.2); outline-offset:2px;}

.gf-ig-cards.gf-ig-cards-single{grid-template-columns:repeat(auto-fit,minmax(280px,420px)); justify-content:start;}
.gf-ig-cards.gf-ig-cards-single .gf-ig-card{max-width:420px;}
/* Viewed album cards (client-side): greyscale/faded preview + optional last-viewed accent */
.gf-ig-card.is-viewed .gf-ig-card-thumb img{
  /* Keep color (no full greyscale): slightly muted + a touch darker */
  /* Increase fade ~20–30% so even very bright thumbs look "viewed" */
  filter: saturate(0.55) contrast(0.95) brightness(0.88);
  opacity: 0.70;
}
.gf-ig-card.is-viewed .gf-ig-card-meta{
  opacity: 0.78;
}
.gf-ig-card.is-last-viewed{
  box-shadow: 0 0 0 3px rgba(34,113,177,0.35), 0 2px 6px rgba(0,0,0,0.06);
}