/* ============================================
   GALLERY — Masonry + Lightbox
   Mobile-first
   ============================================ */

@keyframes galleryFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.gallery {
  padding: var(--space-8) var(--container-padding);
  max-width: var(--container-max);
  margin: 0 auto;
}

.gallery__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.gallery__title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
}

/* Masonry сетка на CSS columns */
.gallery__masonry {
  columns: 1;
  column-gap: var(--space-4);
}

@media (min-width: 600px) {
  .gallery__masonry {
    columns: 2;
  }
}

@media (min-width: 1025px) {
  .gallery__masonry {
    columns: 3;
  }
}

@media (min-width: 1440px) {
  .gallery__masonry {
    columns: 4;
  }
}

/* Карточка галереи */
.gallery-card {
  break-inside: avoid;
  margin-bottom: var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  animation: galleryFadeIn 0.4s ease-out both;
  cursor: pointer;
}

.gallery-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.gallery-card__image {
  width: 100%;
  display: block;
  background: var(--color-gray-bg);
}

.gallery-card__body {
  padding: var(--space-3) var(--space-4);
}

.gallery-card__caption {
  font-size: var(--font-size-sm);
  color: var(--color-dark);
  line-height: var(--line-height-normal);
}

.gallery-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-gray-light);
}

.gallery-card__likes {
  display: flex;
  align-items: center;
  gap: 4px;
}

.gallery-card__likes svg {
  width: 14px;
  height: 14px;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(0, 0, 0, 0.9);
  align-items: center;
  justify-content: center;
}

.lightbox--open {
  display: flex;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-size: var(--font-size-4xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-base);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-size: var(--font-size-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-base);
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox__nav--prev {
  left: var(--space-4);
}

.lightbox__nav--next {
  right: var(--space-4);
}

/* Empty state — скрывается когда masonry имеет контент */
.gallery__masonry:not(:empty) + .gallery__empty-state {
  display: none;
}

.gallery__masonry:empty {
  display: none;
}

@media (max-width: 768px) {
  .gallery {
    padding: var(--space-4) var(--container-padding);
  }
  .gallery__header {
    flex-direction: column;
    align-items: flex-start;
  }
}