/**
 * Grouvel - Styles de la galerie photos/vidéos (gallery.html)
 * Couvre : grille de cartes, lightbox plein écran, navigation tactile.
 */

:root { color-scheme: light dark; }

body {
  margin: 0;
  font-family: var(--font-family, "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, sans-serif);
  background: var(--color-bg-gradient);
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
header {
  text-align: center;
  padding: 30px 16px 10px;
}
h1 {
  font-size: 2rem;
  color: var(--color-text-primary);
  margin: 0.3em 0 0.6em;
}
a.back {
  display: inline-block;
  margin-top: 8px;
  padding: 0.6em 1.4em;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.25s ease-in-out;
  box-shadow: var(--shadow-sm);
}
a.back:hover { background: var(--color-primary-hover); transform: translateY(-2px); }

#status {
  text-align: center;
  margin-bottom: 10px;
  color: var(--color-text-secondary);
}
#status.err {
  padding: 0.6em;
  border-radius: var(--radius-sm, 8px);
}

.wrap {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 16px 28px;
  flex: 1;
}
.grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.card {
  background: var(--color-bg-white);
  border: 1px solid rgba(128,128,128,0.2);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.2s ease-in-out;
}
.card:hover { transform: scale(1.03); }
.card img, .card video {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  display: block;
  cursor: pointer;
}
.meta {
  padding: 8px 10px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
footer {
  text-align: center;
  padding: 16px;
  font-size: 0.9rem;
  color: var(--color-text-disabled);
  border-top: var(--border-light);
}

/* Lightbox */
#lb {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
#lb img, #lb video {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(0,0,0,0.8);
}
#lb .close {
  position: absolute;
  top: 16px;
  right: 22px;
  font-size: 2rem;
  color: white;
  cursor: pointer;
  user-select: none;
  z-index: 10;
}
#lb .nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border: none;
  font-size: 2rem;
  padding: 20px 16px;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
  z-index: 10;
}
#lb .nav-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}
#lb .nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
#lb .nav-prev {
  left: 10px;
}
#lb .nav-next {
  right: 10px;
}
#lb .counter {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  user-select: none;
  z-index: 10;
}

/* Optimisations mobile */
@media (max-width: 640px) {
  header {
    padding: 24px 16px 16px;
  }
  h1 {
    font-size: 1.8rem;
  }
  a.back {
    padding: 0.75em 1.2em;
    font-size: 0.95rem;
  }
  .wrap {
    padding: 0 12px 24px;
  }
  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .card {
    border-radius: 10px;
  }
  .meta {
    font-size: 0.9rem;
    padding: 10px 12px;
  }
  #lb .close {
    font-size: 2.8rem;
    top: 10px;
    right: 16px;
    padding: 8px 16px;
    background: rgba(0,0,0,0.5);
    border-radius: 8px;
  }
  #lb img, #lb video {
    max-width: 95vw;
    max-height: 85vh;
  }
  #lb .nav-btn {
    font-size: 2.5rem;
    padding: 16px 12px;
  }
  #lb .counter {
    bottom: 10px;
    font-size: 0.85rem;
    padding: 6px 12px;
  }
}