/* ============================================================
   Deja Vu Photo Gallery – Frontend Styles
   ============================================================ */

:root {
  --dvg-radius:            8px;
  --dvg-gap:               12px;
  --dvg-transition:        .2s ease;
  --dvg-overlay-bg:        rgba(10,10,20,.92);
  /* Configurable via DVG Settings */
  --dvg-card-bg:           #ffffff;
  --dvg-card-text:         #1a1a2e;
  --dvg-panel-bg:          #ffffff;
  --dvg-back-btn-bg:       #f0f0f0;
  --dvg-back-btn-color:    #444444;
  --dvg-album-title-color: #1a1a2e;
  --dvg-image-bg:          #eeeeee;
}

/* ── Album list ───────────────────────────────────────────── */
.dvg-albums-wrap { box-sizing: border-box; }

.dvg-layout-grid {
  display: grid;
  grid-template-columns: repeat(var(--dvg-cols, 3), 1fr);
  gap: var(--dvg-gap);
}

.dvg-layout-list {
  display: flex;
  flex-direction: column;
  gap: var(--dvg-gap);
}

/* ── Album card ───────────────────────────────────────────── */
.dvg-album-card {
  border-radius: var(--dvg-radius);
  overflow: hidden;
  background: var(--dvg-card-bg);
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
  transition: transform var(--dvg-transition), box-shadow var(--dvg-transition);
}

.dvg-album-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.14);
}

.dvg-album-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.dvg-album-cover {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--dvg-image-bg);
  display: block;
  position: relative;
}

.dvg-album-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}

.dvg-album-card:hover .dvg-album-cover img {
  transform: scale(1.04);
}

.dvg-album-cover--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dvg-image-bg);
}

.dvg-cover-icon {
  font-size: 40px;
  opacity: .3;
}

.dvg-album-info {
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dvg-card-bg);
  text-align: center;
  min-height: 48px;
}

.dvg-album-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--dvg-card-text);
  text-decoration: none;
  line-height: 1.3;
}

/* ── Album panel ──────────────────────────────────────────── */
.dvg-album-panel { margin-top: 20px; }
.dvg-album-panel[aria-hidden="true"] { display: none; }

.dvg-album-panel-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  background: var(--dvg-panel-bg);
  padding: 12px 16px;
  border-radius: var(--dvg-radius);
}

.dvg-back-btn {
  background: var(--dvg-back-btn-bg);
  border: none;
  border-radius: 6px;
  padding: 7px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--dvg-back-btn-color);
  transition: filter var(--dvg-transition);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.dvg-back-btn:hover { filter: brightness(.92); }

.dvg-panel-album-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--dvg-album-title-color);
}

/* ── Image grid ───────────────────────────────────────────── */
.dvg-images-wrap { box-sizing: border-box; }

.dvg-layout-grid.dvg-images-wrap {
  display: grid;
  grid-template-columns: repeat(var(--dvg-cols, 4), 1fr);
  gap: var(--dvg-gap);
}

/* Masonry */
.dvg-layout-masonry.dvg-images-wrap {
  columns: var(--dvg-cols, 4);
  column-gap: var(--dvg-gap);
}

.dvg-layout-masonry .dvg-image-item {
  break-inside: avoid;
  margin-bottom: var(--dvg-gap);
}

/* Image cell – padding-top trick guarantees no white bar */
.dvg-image-item {
  border-radius: var(--dvg-radius);
  overflow: hidden;
  background: var(--dvg-image-bg);
  cursor: pointer;
  position: relative;
}

/* Grid: force 4:3 via padding-top, image fills via absolute */
.dvg-layout-grid .dvg-image-item {
  padding-top: 75%; /* 3/4 = 75% */
}

.dvg-layout-grid .dvg-image-link {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.dvg-layout-grid .dvg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}

/* Masonry: natural image height, no forced ratio */
.dvg-layout-masonry .dvg-image-item {
  padding-top: 0;
}

.dvg-layout-masonry .dvg-image-link {
  display: block;
  position: relative;
  width: 100%;
  height: auto;
}

.dvg-layout-masonry .dvg-img {
  position: relative;
  width: 100%;
  height: auto;
  display: block;
  transition: transform .35s ease;
}

.dvg-image-item:hover .dvg-img {
  transform: scale(1.03);
}

/* ── Empty message ────────────────────────────────────────── */
.dvg-empty {
  color: #888;
  font-style: italic;
  padding: 20px 0;
}

/* ── Lightbox ─────────────────────────────────────────────── */
.dvg-lightbox {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dvg-lightbox[aria-hidden="true"] { display: none; }

.dvg-lightbox-overlay {
  position: absolute;
  inset: 0;
  background: var(--dvg-overlay-bg);
  cursor: zoom-out;
}

.dvg-lightbox-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 56px 80px;
  box-sizing: border-box;
  overflow: visible;
}

.dvg-lb-image-wrap {
  position: relative;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dvg-lb-img {
  max-width: 100%;
  max-height: calc(100vh - 120px);
  object-fit: contain;
  border-radius: 4px;
  display: block;
  opacity: 0;
  transition: opacity .25s ease;
  user-select: none;
}

.dvg-lb-img.loaded { opacity: 1; }

.dvg-lb-spinner {
  position: absolute;
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255,255,255,.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: dvg-spin .7s linear infinite;
}

.dvg-lb-spinner.dvg-hidden { display: none; }

@keyframes dvg-spin { to { transform: rotate(360deg); } }

/* Lightbox buttons – always perfect circles */
.dvg-lb-btn {
  position: absolute;
  background: rgba(255,255,255,.12);
  border: none;
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  transition: background var(--dvg-transition);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  flex-shrink: 0;
  padding: 0;
}

.dvg-lb-btn:hover { background: rgba(255,255,255,.26); }

.dvg-lb-close {
  top: 12px;
  right: 12px;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  font-size: 18px;
  line-height: 44px;
  z-index: 10;
}

.dvg-lb-prev,
.dvg-lb-next {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  min-width: 52px;
  min-height: 52px;
  font-size: 28px;
  line-height: 52px;
}

.dvg-lb-prev { left: 16px; }
.dvg-lb-next { right: 16px; }

.dvg-lb-prev:hover,
.dvg-lb-next:hover { background: rgba(255,255,255,.26); }

.dvg-lb-counter {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.7);
  font-size: 13px;
  letter-spacing: .04em;
  pointer-events: none;
  white-space: nowrap;
}

/* ── Panel loading ────────────────────────────────────────── */
.dvg-panel-loading {
  text-align: center;
  padding: 40px;
  color: #999;
  font-size: 14px;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .dvg-layout-grid {
    grid-template-columns: repeat(min(var(--dvg-cols, 3), 2), 1fr);
  }
  .dvg-layout-grid.dvg-images-wrap {
    grid-template-columns: repeat(min(var(--dvg-cols, 4), 2), 1fr);
  }
  .dvg-layout-masonry.dvg-images-wrap { columns: min(var(--dvg-cols, 4), 2); }
  .dvg-lightbox-inner { padding: 52px 60px; }
  .dvg-lb-prev { left: 8px; }
  .dvg-lb-next { right: 8px; }
}

@media (max-width: 600px) {
  .dvg-layout-grid,
  .dvg-layout-grid.dvg-images-wrap { grid-template-columns: repeat(2, 1fr); }
  .dvg-layout-masonry.dvg-images-wrap { columns: 2; }
  .dvg-lightbox-inner { padding: 52px 52px; }
  .dvg-lb-prev { left: 6px; }
  .dvg-lb-next { right: 6px; }
}

@media (max-width: 400px) {
  .dvg-layout-masonry.dvg-images-wrap { columns: 1; }
}