/* KTV Gallery – Frontend Styles */

:root {
  --ktvg-primary: #1a4a2e;
  --ktvg-accent:  #4caf50;
  --ktvg-border:  #cde3d2;
  --ktvg-hover:   #e8f5ea;
}

/* ── Galerie Grid ── */
.ktvg-gallery {
  columns: 4;
  column-gap: 12px;
  margin: 16px 0;
}

.ktvg-item {
  break-inside: avoid;
  margin-bottom: 12px;
  overflow: hidden;
  border-radius: 6px;
  border: 2px solid var(--ktvg-border);
  transition: border-color 0.2s, transform 0.2s;
}

.ktvg-item:hover {
  border-color: var(--ktvg-accent);
  transform: scale(1.02);
}

.ktvg-item img {
  width: 100%;
  height: auto;
  display: block;
  cursor: pointer;
}

/* ── Album Grid ── */
.ktvg-album {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin: 16px 0;
}

.ktvg-album-card,
.ktvg-album-item {
  border: 2px solid var(--ktvg-border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  background: #fff;
  max-width: 320px;
}

.ktvg-album-card:hover,
.ktvg-album-item:hover {
  border-color: var(--ktvg-accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(26,74,46,0.15);
}

.ktvg-album-thumb {
  position: relative;
  overflow: hidden;
  height: 200px;
  width: 100%;
}

.ktvg-album-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}

.ktvg-album-card:hover .ktvg-album-thumb img,
.ktvg-album-item:hover .ktvg-album-thumb img {
  transform: scale(1.05);
}

.ktvg-no-thumb {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  background: var(--ktvg-hover);
}

.ktvg-album-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,74,46,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.ktvg-album-card:hover .ktvg-album-overlay,
.ktvg-album-item:hover .ktvg-album-overlay {
  opacity: 1;
}

.ktvg-album-overlay span {
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  background: var(--ktvg-accent);
  padding: 8px 18px;
  border-radius: 4px;
}

.ktvg-album-info {
  padding: 12px 14px;
}

.ktvg-album-info h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ktvg-primary);
}

.ktvg-album-info span {
  font-size: 13px;
  color: #888;
}

/* ── Lightbox ── */
#ktvg-lightbox {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
}

#ktvg-lb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.88);
  cursor: pointer;
}

#ktvg-lb-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  text-align: center;
}

#ktvg-lb-img {
  max-width: 88vw;
  max-height: 80vh;
  border-radius: 4px;
  display: block;
  margin: 0 auto;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
}

#ktvg-lb-caption {
  color: #fff;
  font-size: 14px;
  margin: 10px 0 4px;
}

#ktvg-lb-counter {
  color: #aaa;
  font-size: 13px;
  margin: 0;
}

#ktvg-lb-close,
#ktvg-lb-prev,
#ktvg-lb-next {
  position: fixed;
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 28px;
  line-height: 1;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  z-index: 2;
}

#ktvg-lb-close:hover,
#ktvg-lb-prev:hover,
#ktvg-lb-next:hover {
  background: var(--ktvg-accent);
}

#ktvg-lb-close { top: 20px; right: 20px; font-size: 20px; }
#ktvg-lb-prev  { left: 20px; top: 50%; transform: translateY(-50%); }
#ktvg-lb-next  { right: 20px; top: 50%; transform: translateY(-50%); }

/* Zurück-Button im Album */
.ktvg-back-btn {
  display: inline-block;
  margin-bottom: 16px;
  padding: 8px 18px;
  background: var(--ktvg-primary);
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  border: none;
  transition: background 0.2s;
}
.ktvg-back-btn:hover { background: var(--ktvg-accent); }

@media (max-width: 600px) {
  .ktvg-gallery { columns: 2; }
  .ktvg-album  { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
  .ktvg-album-thumb { height: 130px; }
  #ktvg-lb-prev { left: 8px; }
  #ktvg-lb-next { right: 8px; }
}