/*
 * TritonIQ DNN Gallery — styles for the server-rendered section (Services/Gallery/GalleryRenderer.cs).
 * Registered in <head> by Controls/GalleryView.cs, BEFORE the skin's CSS, so a skin can override any
 * rule here with an equally specific one.
 *
 * Layout follows gallery-grid.astro. Colours and fonts come from the SITE'S tokens; the fallbacks,
 * for a site that does not set them (or ships them blank), are the Triton skin's own defaults:
 *
 *   site token            used for                                            fallback
 *   --font-headline       title, subtitle, pills, badges, buttons             the skin's own font
 *   --font-body           description, counts                                 the skin's own font
 *   --color-primary       active pill, badge, subtitle, focus ring, button    #9E2065
 *   --color-secondary     pill hover, active sub-pill, button                 #00ABD8
 *   --color-tertiary      tertiary button                                     #6B6B6B
 *   --color-dark-shade    hover overlay, photo placeholder, button hover      #222222
 *   --color-light-shade   (reserved)                                          #E6E6E6
 *
 * They arrive as --tg-site-*, copied by the inline script after each section, and only when they
 * hold a value: a token declared blank (`--color-primary:;`) would otherwise defeat var()'s fallback.
 *
 * Per-gallery overrides, set on `.tg { … }` (or `#tg-<moduleId>`), win over the tokens:
 *   --triton-gallery-accent  --triton-gallery-accent-contrast  --triton-gallery-count
 *   --triton-gallery-scrim   --triton-gallery-placeholder      --triton-gallery-gap
 *   --triton-gallery-pill-radius  --triton-gallery-max-width
 * The tile shape is a module setting (it is written into the grid's style attribute).
 *
 * State classes, set by script: .js / .js-reveal on the section (inline script), .is-loaded on a
 * tile (its <img> onload), .is-visible on a tile (gallery.js). Without script none apply and the
 * gallery simply shows, fully visible.
 */

.tg {
  --tg-primary: var(--tg-site-color-primary, #9e2065);
  --tg-secondary: var(--tg-site-color-secondary, #00abd8);
  --tg-tertiary: var(--tg-site-color-tertiary, #6b6b6b);
  --tg-dark: var(--tg-site-color-dark-shade, #222);
  --tg-light: var(--tg-site-color-light-shade, #e6e6e6);

  --tg-accent: var(--triton-gallery-accent, var(--tg-primary));
  --tg-accent-contrast: var(--triton-gallery-accent-contrast, #fff);
  --tg-scrim-color: var(--triton-gallery-scrim, color-mix(in srgb, var(--tg-dark) 55%, transparent));
  --tg-placeholder: var(--triton-gallery-placeholder, color-mix(in srgb, var(--tg-dark) 10%, transparent));
  --tg-gap: var(--triton-gallery-gap, 20px);
  --tg-radius: var(--triton-gallery-pill-radius, 999px);

  container-type: inline-size;
  display: flex;
  flex-direction: column;
  max-width: var(--triton-gallery-max-width, 1248px);
  margin-inline: auto;
  /* No fallback on purpose: with no --font-body token this is unset, i.e. the skin's own font. */
  font-family: var(--tg-site-font-body);
}

.tg-title,
.tg-subtitle,
.tg-pill,
.tg-badge,
.tg-button {
  font-family: var(--tg-site-font-headline);
}

.tg-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 8px;
}

.tg-settings-button {
  font: inherit;
  font-size: 0.875rem;
  padding: 6px 14px;
  border: 1px solid currentColor;
  border-radius: 4px;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.tg-title {
  text-align: center;
  margin: 0 0 10px;
  text-wrap: balance;
}

/* The Triton skin's __subtitle: a short uppercase line between the title and the copy. */
.tg-subtitle {
  text-align: center;
  margin: -2px auto 12px;
  max-width: 1034px;
  color: var(--tg-primary);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-wrap: balance;
}

.tg-desc {
  text-align: center;
  max-width: 1034px;
  margin: 0 auto 0.5rem;
}

/* Editors only. Muted so it does not read as page copy. */
.tg-notice {
  text-align: center;
  font-size: 0.875rem;
  opacity: 0.7;
  margin: 1rem auto;
  padding: 1.5rem;
  border: 1px dashed currentColor;
  max-width: 720px;
}

/* --- Filter pills ------------------------------------------------------- */
.tg-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
}

/* display:flex above would otherwise beat the [hidden] attribute on the sub-rows. */
.tg-filters[hidden] {
  display: none;
}

.tg-filters--sub {
  margin-top: 12px;
}

.tg-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  margin: 0;
  padding: 0 20px;
  border: 0;
  border-radius: var(--tg-radius);
  background: transparent;
  box-shadow: inset 0 0 0 1px currentColor;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  color: inherit;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.tg-pill:hover {
  box-shadow: inset 0 0 0 2px var(--tg-secondary);
  color: var(--tg-secondary);
}

.tg-pill:focus-visible {
  outline: 2px solid var(--tg-accent);
  outline-offset: 3px;
}

.tg-pill.is-active {
  background: var(--tg-accent);
  box-shadow: inset 0 0 0 1px var(--tg-accent);
  color: var(--tg-accent-contrast);
}

.tg-pill.is-active:hover {
  color: var(--tg-accent-contrast);
}

.tg-filters--sub .tg-pill {
  height: 34px;
  font-size: 0.8rem;
}

/* The second row reads as a level down: secondary, not primary. */
.tg-filters--sub .tg-pill.is-active {
  background: var(--tg-secondary);
  box-shadow: inset 0 0 0 1px var(--tg-secondary);
}

.tg-count {
  font-family: var(--tg-site-font-body);
  font-weight: 400;
  font-size: 0.8em;
  color: var(--triton-gallery-count, currentColor);
  opacity: 0.8;
}

.tg-pill.is-active .tg-count {
  color: inherit;
  opacity: 1;
}

/* --- Grid --------------------------------------------------------------- */
.tg-grid {
  display: grid;
  grid-template-columns: repeat(var(--tg-columns, 4), 1fr);
  gap: var(--tg-gap);
  margin-top: 16px;
  margin-bottom: clamp(4rem, 5vw, 6.25rem);
}

/*
 * Every tile's box is fixed by its aspect ratio (the module's tile width × height), so the grid
 * has its final height in the first paint. Loading then happens inside those boxes:
 *   1. placeholder — the tile's background plus a light sweep, until the photo arrives;
 *   2. photo       — fades in from a slight blur and zoom once loaded (.is-loaded);
 *   3. tile        — rises into place when scrolled into view (.is-visible), cascading.
 * Only opacity and transform animate, and neither counts as layout shift.
 */
.tg-tile {
  position: relative;
  aspect-ratio: var(--tg-ratio, 297 / 306);
  overflow: hidden;
  background: var(--tg-placeholder);
}

.tg-tile[hidden] {
  display: none;
}

.tg.js .tg-tile::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(100deg, transparent 20%, rgba(255, 255, 255, 0.28) 50%, transparent 80%);
  transform: translateX(-100%);
  animation: tg-sweep 1.3s ease-in-out infinite;
  pointer-events: none;
}

.tg.js .tg-tile.is-loaded::before {
  content: none;
}

@keyframes tg-sweep {
  to {
    transform: translateX(100%);
  }
}

.tg-trigger {
  position: absolute;
  inset: 0;
  display: block;
}

.tg-trigger img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  transition:
    opacity 0.6s ease,
    filter 0.7s ease,
    transform 1.1s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.tg.js .tg-tile:not(.is-loaded) .tg-trigger img {
  opacity: 0;
  filter: blur(10px);
  transform: scale(1.08);
}

/* A slow push-in on hover, under the scrim. */
.tg-tile.is-loaded:hover .tg-trigger img {
  transform: scale(1.05);
}

.tg.js-reveal .tg-tile {
  opacity: 0;
  transform: translateY(24px) scale(0.97);
  transition:
    opacity 0.55s ease var(--tg-delay, 0ms),
    transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) var(--tg-delay, 0ms);
}

.tg.js-reveal .tg-tile.is-visible {
  opacity: 1;
  transform: none;
}

/* Used for one frame when a filter replays the reveal, so tiles hide instantly rather than fading out. */
.tg-grid.tg-no-transition .tg-tile {
  transition: none;
}

.tg-badge {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  padding: 6px 14px;
  background: var(--tg-accent);
  color: var(--tg-accent-contrast);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.45px;
  text-transform: uppercase;
  line-height: 1;
  pointer-events: none;
}

.tg-scrim {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--tg-scrim-color);
  color: #fff;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.tg-tile:hover .tg-scrim,
.tg-tile:focus-within .tg-scrim {
  opacity: 1;
}

.tg-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --- Pager -------------------------------------------------------------
 * Matches the filter pills: outlined, the current page filled with the accent.
 */
.tg-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}

.tg-pager[hidden] {
  display: none;
}

.tg-page {
  min-width: 40px;
  height: 40px;
  margin: 0;
  padding: 0 12px;
  border: 0;
  border-radius: var(--tg-radius);
  background: transparent;
  box-shadow: inset 0 0 0 1px currentColor;
  color: inherit;
  font-family: var(--tg-site-font-headline);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.tg-page:hover:not(:disabled):not(.is-current) {
  box-shadow: inset 0 0 0 2px var(--tg-secondary);
  color: var(--tg-secondary);
}

.tg-page:focus-visible {
  outline: 2px solid var(--tg-accent);
  outline-offset: 3px;
}

.tg-page.is-current {
  background: var(--tg-accent);
  box-shadow: inset 0 0 0 1px var(--tg-accent);
  color: var(--tg-accent-contrast);
  cursor: default;
}

.tg-page--step {
  font-size: 1.25rem;
}

.tg-page:disabled {
  opacity: 0.35;
  cursor: default;
}

.tg-page-gap {
  min-width: 20px;
  text-align: center;
  opacity: 0.6;
}

/* --- Buttons ------------------------------------------------------------
 * They also carry the Triton skin's `button button--primary|secondary|tertiary`, and the skin's
 * CSS loads after this file, so on a Triton site its rules apply; these mirror _button.scss so the
 * buttons look the same on a skin without those classes.
 */
.tg-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 19px;
  justify-content: center;
  margin-top: 26px;
}

.tg-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 12px 15px;
  border: none;
  color: #fff;
  font-size: 1.042rem;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 0.3s ease;
}

.tg-button:focus-visible {
  outline: 2px solid var(--tg-primary);
  outline-offset: 3px;
}

.tg-button--primary {
  background: var(--tg-primary);
}

.tg-button--primary:hover {
  background: var(--tg-secondary);
  color: #fff;
}

.tg-button--secondary {
  background: var(--tg-secondary);
}

.tg-button--secondary:hover {
  background: var(--tg-primary);
  color: #fff;
}

.tg-button--tertiary {
  background: var(--tg-tertiary);
}

.tg-button--tertiary:hover {
  background: var(--tg-dark);
  color: var(--tg-primary);
}

/*
 * Container queries, not media queries: a DNN pane can be a sidebar on a wide screen. Two columns
 * below 1023px of available width, and it stays at two below that, as the Astro grid does.
 */
@container (max-width: 1023px) {
  .tg-grid {
    grid-template-columns: repeat(min(2, var(--tg-columns, 4)), 1fr);
  }
}

@container (max-width: 560px) {
  /* The bar scrolls sideways rather than stacking into a column of pills. */
  .tg-filters {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    gap: 8px;
    scrollbar-width: none;
  }

  .tg-filters::-webkit-scrollbar {
    display: none;
  }

  .tg-pill {
    flex: 0 0 auto;
  }

  .tg-buttons {
    flex-direction: column;
    align-items: stretch;
  }
}

/* The inline script also skips the scroll reveal here; this covers the CSS-only effects. */
@media (prefers-reduced-motion: reduce) {
  .tg.js .tg-tile::before {
    animation: none;
  }

  .tg-trigger img,
  .tg.js .tg-tile:not(.is-loaded) .tg-trigger img,
  .tg-tile.is-loaded:hover .tg-trigger img {
    filter: none;
    transform: none;
    transition: opacity 0.3s ease;
  }
}