/* ==========================================================================
   GALLERY — the Meme Vault grid, filter chips, lightbox and media kit.
   Loaded by gallery.html only. Depends on: tokens.css, components.css
   ========================================================================== */


/* ==========================================================================
   1. Filter chips
   ========================================================================== */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-7);
}

.filter {
  padding: 10px var(--space-5);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  background: var(--c-surface);
  color: var(--c-muted);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--dur-fast);
}

.filter:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

.filter.is-active {
  border-color: transparent;
  background: linear-gradient(180deg, var(--c-gold-soft), var(--c-gold));
  color: var(--c-ink-invert);
  box-shadow: var(--shadow-gold);
}

.filter__count {
  opacity: .6;
  font-size: .9em;
}


/* ==========================================================================
   2. Grid
   Square art fills one cell, 16:9 art spans two. Aspect ratio is declared in
   CSS rather than measured, so nothing reflows while the images stream in.
   ========================================================================== */
.meme-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

.meme {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  background: var(--c-surface);
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base),
              box-shadow var(--dur-base);
}

.meme:hover,
.meme:focus-visible {
  transform: translateY(-6px) rotate(-.6deg);
  border-color: var(--c-line-accent);
  box-shadow: var(--shadow-card), var(--glow-gold);
}

.meme--wide { grid-column: span 2; }

.meme__frame {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--c-bg-raised);
}

/* Two columns plus the gap between them, at exactly one column's height, so a
   banner sits flush with the square tiles beside it instead of pushing its
   whole row taller. The ratio holds at both the 3- and 2-column layouts. */
.meme--wide .meme__frame { aspect-ratio: 2.06 / 1; }

.meme__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.meme:hover .meme__img { transform: scale(1.05); }

/* Caption bar, always readable over the art */
.meme__bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--c-line);
}

.meme__title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: .84rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--c-ink);
}

.meme__hint {
  flex: 0 0 auto;
  font-size: var(--text-xs);
  color: var(--c-cyan);
  opacity: 0;
  transition: opacity var(--dur-fast);
}

.meme:hover .meme__hint,
.meme:focus-visible .meme__hint { opacity: 1; }

/* "no results" line — only shown when a filter empties the grid */
.meme-empty {
  padding: var(--space-9) 0;
  font-family: var(--font-marker);
  font-size: 1.3rem;
  text-align: center;
  color: var(--c-muted);
}


/* ==========================================================================
   3. Lightbox
   ========================================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: var(--c-overlay);
  backdrop-filter: blur(16px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base);
}

.lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  width: min(1000px, 100%);
  max-height: 100%;
  transform: scale(.97);
  transition: transform var(--dur-base) var(--ease-out);
}

.lightbox.is-open .lightbox__panel { transform: none; }

.lightbox__stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  flex: 1;
}

.lightbox__img {
  max-width: 100%;
  max-height: 68vh;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.lightbox__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-4);
}

.lightbox__title {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.lightbox__caption {
  flex: 1 1 320px;
  min-width: 0;
  font-size: var(--text-sm);
  color: var(--c-muted);
}

.lightbox__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-left: auto;
}

/* Chrome: close and prev/next */
.lightbox__close,
.lightbox__nav {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  background: var(--c-surface-hi);
  color: var(--c-ink);
  font-size: 1.3rem;
  cursor: pointer;
  transition: var(--dur-fast);
}

.lightbox__close:hover,
.lightbox__nav:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

.lightbox__close { top: var(--space-5); right: var(--space-5); }
.lightbox__nav--prev { top: 50%; left:  var(--space-5); transform: translateY(-50%); }
.lightbox__nav--next { top: 50%; right: var(--space-5); transform: translateY(-50%); }

.lightbox__counter {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--c-muted);
}


/* ==========================================================================
   4. Media kit
   ========================================================================== */
.kit {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-7);
  align-items: center;
  padding: var(--space-7);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xl);
  background: var(--c-surface);
}

.kit__logo {
  width: 100%;
  border-radius: 50%;
  box-shadow: var(--glow-gold-lg);
}

.kit__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.kit__swatches {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.swatch {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  color: var(--c-muted);
}

.swatch::before {
  content: "";
  width: 26px;
  height: 26px;
  border: 1px solid var(--c-line);
  border-radius: 8px;
  background: var(--swatch);
}


/* ==========================================================================
   5. Responsive
   ========================================================================== */
@media (max-width: 1000px) {
  .meme-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .kit {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .kit__logo    { max-width: 220px; }
  .kit__list,
  .kit__swatches { justify-content: center; }
}

@media (max-width: 620px) {
  .meme-grid  { grid-template-columns: 1fr; }

  /* One per row: a banner no longer spans anything, so it goes back to its
     own shape rather than the letterbox strip the packed layout needs. */
  .meme--wide { grid-column: span 1; }
  .meme--wide .meme__frame { aspect-ratio: 16 / 9; }

  .lightbox__nav  { width: 42px; height: 42px; }
  .lightbox__nav--prev { left:  var(--space-2); }
  .lightbox__nav--next { right: var(--space-2); }
  .lightbox__close     { top: var(--space-2); right: var(--space-2); }
  .lightbox__img       { max-height: 54vh; }
  .lightbox__actions   { margin-left: 0; }
}