/* Gallery Masonry Layout CSS (Grid-Lanes)
 * Modern CSS Grid masonry layout with CSS columns fallback
 * Reference: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_grid_layout/Masonry_layout
 *
 * This file loads AFTER specialised-steering.css, so we can use proper specificity
 * without !important flags.
 */

/* Gallery Section Container - uses standard container styles */
/* Only ensure overflow is visible for masonry to work */
.gallery-section {
  overflow: visible;
}

.gallery-section .container {
  overflow: visible;
}

/* Base Photo Gallery */
.photo-gallery {
  width: 100%;
  margin: 2rem auto;
  display: block;
  overflow: visible;
  box-sizing: border-box;
}

/* W3Bits Masonry Grid (exclusive to gallery) */
.masonry-wrapper {
  padding: 0; /* use container padding */
  max-width: 100%; /* use container max-width */
  margin-right: auto;
  margin-left: auto;
  overflow: visible;
  min-height: 0; /* allow content to expand */
}
.masonry {
  display: grid;
  grid-template-columns: repeat(1, minmax(100px, 1fr));
  grid-gap: 10px;
  overflow: visible;
  min-height: 0; /* allow grid to expand with content */
  grid-auto-rows: 1px; /* smaller base for tighter packing */
}
@media only screen and (max-width: 1023px) and (min-width: 768px) {
  .masonry {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
  }
}
@media only screen and (min-width: 1024px) {
  .masonry {
    grid-template-columns: repeat(3, minmax(100px, 1fr));
  }
}
.masonry-item,
.masonry-content {
  border-radius: 4px;
  overflow: hidden;
}
.masonry-item {
  filter: drop-shadow(0px 2px 2px rgba(0, 0, 0, 0.15));
  transition: filter 0.25s ease-in-out;
  min-height: 200px; /* Ensure items have space for images to render */
}
.masonry-item:hover {
  filter: drop-shadow(0px 5px 5px rgba(0, 0, 0, 0.25));
}
.masonry-content {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* Masonry Layout - CSS Columns (fallback for most browsers) */
/* Using ID selector for higher specificity than class-only selectors */
#photo-gallery[data-layout="masonry"] {
  display: block;
  /* Use column-width instead of column-count to let browser calculate based on available space */
  column-width: 280px;
  -webkit-column-width: 280px;
  -moz-column-width: 280px;
  column-gap: 1.5rem;
  -webkit-column-gap: 1.5rem;
  -moz-column-gap: 1.5rem;
  column-fill: auto;
  column-rule: none;
  width: 100%;
  max-width: 100%;
  overflow: visible;
  box-sizing: border-box;
}

/* Class selector for contexts where ID might not be available */
.photo-gallery[data-layout="masonry"] {
  display: block;
  /* Use column-width instead of column-count to let browser calculate based on available space */
  column-width: 280px;
  -webkit-column-width: 280px;
  -moz-column-width: 280px;
  column-gap: 1.5rem;
  -webkit-column-gap: 1.5rem;
  -moz-column-gap: 1.5rem;
  column-fill: auto;
  column-rule: none;
  width: 100%;
  max-width: 100%;
  overflow: visible;
  box-sizing: border-box;
}

/* Modern CSS Grid Masonry (Grid-Lanes) - Firefox only */
@supports (grid-template-rows: masonry) {
  #photo-gallery[data-layout="masonry"],
  .photo-gallery[data-layout="masonry"] {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-template-rows: masonry; /* Grid-lanes */
    gap: 1.5rem;
    /* Reset column properties when using grid */
    column-count: auto;
    -webkit-column-count: auto;
    -moz-column-count: auto;
    column-width: auto;
    -webkit-column-width: auto;
    -moz-column-width: auto;
    column-gap: 0;
    -webkit-column-gap: 0;
    -moz-column-gap: 0;
  }
}

/* Gallery Items in Masonry Layout */
#photo-gallery[data-layout="masonry"] .gallery-item,
.photo-gallery[data-layout="masonry"] .gallery-item {
  /* For CSS Columns: inline-block is required */
  display: inline-block;
  width: 100%;
  margin-bottom: 1.5rem; /* vertical gutter for column fallback */
  /* Critical: prevent breaking across columns */
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  -moz-column-break-inside: avoid;
  page-break-inside: avoid;
  vertical-align: top;
  /* Visual styling */
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
}

/* For browsers with grid masonry support */
@supports (grid-template-rows: masonry) {
  #photo-gallery[data-layout="masonry"] .gallery-item,
  .photo-gallery[data-layout="masonry"] .gallery-item {
    display: block; /* Grid items are block by default */
    margin-bottom: 0; /* Gap handled by grid gap */
  }
}

#photo-gallery[data-layout="masonry"] .gallery-item:hover,
.photo-gallery[data-layout="masonry"] .gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* Gallery Photos */
#photo-gallery[data-layout="masonry"] .gallery-photo,
.photo-gallery[data-layout="masonry"] .gallery-photo {
  width: 100%;
  height: auto;
  display: block;
  cursor: pointer;
  object-fit: contain;
  max-width: 100%;
}

/* Responsive Design */
/* Tablet and smaller desktop */
@media screen and (max-width: 991px) {
  #photo-gallery[data-layout="masonry"],
  .photo-gallery[data-layout="masonry"] {
    /* Force 2 columns on tablet */
    column-count: 2;
    -webkit-column-count: 2;
    -moz-column-count: 2;
    column-width: auto;
    -webkit-column-width: auto;
    -moz-column-width: auto;
    column-gap: 1rem;
    -webkit-column-gap: 1rem;
    -moz-column-gap: 1rem;
  }

  @supports (grid-template-rows: masonry) {
    #photo-gallery[data-layout="masonry"],
    .photo-gallery[data-layout="masonry"] {
      grid-template-columns: repeat(2, 1fr);
      gap: 1rem;
      column-count: auto;
      -webkit-column-count: auto;
      -moz-column-count: auto;
      column-width: auto;
      -webkit-column-width: auto;
      -moz-column-width: auto;
      column-gap: 0;
      -webkit-column-gap: 0;
      -moz-column-gap: 0;
    }
  }
  #photo-gallery[data-layout="masonry"] .gallery-item,
  .photo-gallery[data-layout="masonry"] .gallery-item {
    margin-bottom: 1rem;
  }
}

/* Mobile devices */
@media screen and (max-width: 479px) {
  #photo-gallery[data-layout="masonry"],
  .photo-gallery[data-layout="masonry"] {
    /* Smaller column width for mobile - browser will calculate how many fit */
    column-width: 150px;
    -webkit-column-width: 150px;
    -moz-column-width: 150px;
    column-gap: 0.75rem;
    -webkit-column-gap: 0.75rem;
    -moz-column-gap: 0.75rem;
  }

  @supports (grid-template-rows: masonry) {
    #photo-gallery[data-layout="masonry"],
    .photo-gallery[data-layout="masonry"] {
      grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
      gap: 0.75rem;
      column-count: auto;
      -webkit-column-count: auto;
      -moz-column-count: auto;
      column-width: auto;
      -webkit-column-width: auto;
      -moz-column-width: auto;
      column-gap: 0;
      -webkit-column-gap: 0;
      -moz-column-gap: 0;
    }
  }
  #photo-gallery[data-layout="masonry"] .gallery-item,
  .photo-gallery[data-layout="masonry"] .gallery-item {
    margin-bottom: 0.75rem;
  }
}

/* Very small mobile devices - single column */
@media screen and (max-width: 360px) {
  #photo-gallery[data-layout="masonry"],
  .photo-gallery[data-layout="masonry"] {
    column-width: auto;
    -webkit-column-width: auto;
    -moz-column-width: auto;
    column-count: 1;
    -webkit-column-count: 1;
    -moz-column-count: 1;
    column-gap: 0.5rem;
    -webkit-column-gap: 0.5rem;
    -moz-column-gap: 0.5rem;
  }

  @supports (grid-template-rows: masonry) {
    #photo-gallery[data-layout="masonry"],
    .photo-gallery[data-layout="masonry"] {
      grid-template-columns: 1fr;
      gap: 0.5rem;
      column-width: auto;
      -webkit-column-width: auto;
      -moz-column-width: auto;
      column-count: auto;
      -webkit-column-count: auto;
      -moz-column-count: auto;
      column-gap: 0;
      -webkit-column-gap: 0;
      -moz-column-gap: 0;
    }
  }
  #photo-gallery[data-layout="masonry"] .gallery-item,
  .photo-gallery[data-layout="masonry"] .gallery-item {
    margin-bottom: 0.5rem;
  }
}

/* Large desktop - more columns */
@media screen and (min-width: 1200px) {
  #photo-gallery[data-layout="masonry"],
  .photo-gallery[data-layout="masonry"] {
    /* Larger column width for desktop - browser calculates how many fit */
    column-width: 320px;
    -webkit-column-width: 320px;
    -moz-column-width: 320px;
  }

  @supports (grid-template-rows: masonry) {
    #photo-gallery[data-layout="masonry"],
    .photo-gallery[data-layout="masonry"] {
      grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
      column-count: auto;
      -webkit-column-count: auto;
      -moz-column-count: auto;
      column-width: auto;
      -webkit-column-width: auto;
      -moz-column-width: auto;
    }
  }
}

/* Extra large desktop - even more columns */
@media screen and (min-width: 1600px) {
  #photo-gallery[data-layout="masonry"],
  .photo-gallery[data-layout="masonry"] {
    /* Even larger column width for extra large screens */
    column-width: 350px;
    -webkit-column-width: 350px;
    -moz-column-width: 350px;
  }

  @supports (grid-template-rows: masonry) {
    #photo-gallery[data-layout="masonry"],
    .photo-gallery[data-layout="masonry"] {
      column-count: auto;
      -webkit-column-count: auto;
      -moz-column-count: auto;
      grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
      column-width: auto;
      -webkit-column-width: auto;
      -moz-column-width: auto;
    }
  }
}

/* Gallery Error and Empty States */
.gallery-error,
.gallery-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-primary);
}

.gallery-error p,
.gallery-empty p {
  margin: 0.5rem 0;
  max-width: none;
}

.gallery-loading {
  text-align: center;
  padding: 2rem;
  color: var(--color-primary);
}