/* ============================================================
   MASONRY PINTEREST-STYLE GALLERY & RESULTS
   Mobile-first, dark/light mode, accessible
   ============================================================ */

/* ---------- CSS custom properties ---------- */
:root {
  --mg-gap: 12px;
  --mg-radius: 12px;
  --mg-shadow: 0 2px 8px rgba(0,0,0,.10);
  --mg-shadow-hover: 0 8px 28px rgba(0,0,0,.18);
  --mg-overlay: rgba(0,0,0,.50);
  --mg-accent: #d42b2b;
  --mg-accent-light: rgba(212,43,43,.12);
  --mg-bg: #f5f5f5;
  --mg-card-bg: #fff;
  --mg-text: #333;
  --mg-subtext: #777;
  --mg-tab-bg: #fff;
  --mg-tab-active-bg: #d42b2b;
  --mg-tab-active-color: #fff;
  --mg-tab-color: #555;
  --mg-transition: .25s ease;
  --mg-search-bg: #fff;
  --mg-cols: 2;          /* mobile default */
}

@media (prefers-color-scheme: dark) {
  :root {
    --mg-bg: #1a1a1a;
    --mg-card-bg: #242424;
    --mg-text: #eee;
    --mg-subtext: #aaa;
    --mg-shadow: 0 2px 8px rgba(0,0,0,.4);
    --mg-shadow-hover: 0 8px 28px rgba(0,0,0,.6);
    --mg-tab-bg: #2a2a2a;
    --mg-tab-color: #ccc;
    --mg-search-bg: #2a2a2a;
  }
}

/* ---------- Page section bg ---------- */
.mg-section {
  background: var(--mg-bg);
  padding: 32px 0 56px;
}

/* ---------- Search bar ---------- */
.mg-search-wrap {
  max-width: 480px;
  margin: 0 auto 24px;
  position: relative;
}
.mg-search {
  width: 100%;
  padding: 11px 44px 11px 18px;
  border: 1.5px solid #ddd;
  border-radius: 50px;
  background: var(--mg-search-bg);
  color: var(--mg-text);
  font-size: 14px;
  outline: none;
  transition: border-color var(--mg-transition), box-shadow var(--mg-transition);
}
.mg-search:focus {
  border-color: var(--mg-accent);
  box-shadow: 0 0 0 3px var(--mg-accent-light);
}
.mg-search-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--mg-subtext);
  pointer-events: none;
}

/* ---------- Filter / tab pills ---------- */
.mg-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 24px;
  padding: 0;
  list-style: none;
}
.mg-filters li { margin: 0; }
.mg-filters button {
  padding: 8px 20px;
  border: 1.5px solid #ddd;
  border-radius: 50px;
  background: var(--mg-tab-bg);
  color: var(--mg-tab-color);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--mg-transition);
  white-space: nowrap;
}
.mg-filters button:hover,
.mg-filters button:focus-visible {
  border-color: var(--mg-accent);
  color: var(--mg-accent);
  outline: none;
}
.mg-filters button.active {
  background: var(--mg-tab-active-bg);
  border-color: var(--mg-tab-active-bg);
  color: var(--mg-tab-active-color);
}

/* ---------- Masonry grid (CSS columns) ---------- */
.mg-grid {
  columns: var(--mg-cols);
  column-gap: var(--mg-gap);
  padding: 0 var(--mg-gap);
}
/* 3 cols on wider mobiles */
@media (min-width: 480px) { .mg-grid { --mg-cols: 3; } }
/* 4 cols on tablets */
@media (min-width: 768px) { .mg-grid { --mg-cols: 4; } }
/* 5 cols on desktop */
@media (min-width: 1024px) { .mg-grid { --mg-cols: 5; } }
/* 6 cols on wide desktop */
@media (min-width: 1280px) { .mg-grid { --mg-cols: 6; } }

/* ---------- Card ---------- */
.mg-card {
  break-inside: avoid;
  margin-bottom: var(--mg-gap);
  border-radius: var(--mg-radius);
  overflow: hidden;
  background: var(--mg-card-bg);
  box-shadow: var(--mg-shadow);
  position: relative;
  cursor: pointer;
  transition: transform var(--mg-transition), box-shadow var(--mg-transition);
  display: block; /* avoid inline gap */
}
/* hide filtered cards */
.mg-card.mg-hidden {
  display: none;
}
.mg-card:hover,
.mg-card:focus-within {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--mg-shadow-hover);
  z-index: 2;
}

/* ---------- Image wrapper ---------- */
.mg-img-wrap {
  position: relative;
  overflow: hidden;
  display: block;
}
.mg-img-wrap img {
  display: block;
  width: 100%;
  height: auto;        /* natural aspect ratio — masonry key */
  object-fit: cover;
  transition: transform .35s ease;
  border-radius: 0;
}
.mg-card:hover .mg-img-wrap img {
  transform: scale(1.06);
}

/* ---------- Overlay on hover ---------- */
.mg-overlay {
  position: absolute;
  inset: 0;
  background: var(--mg-overlay);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 12px;
  opacity: 0;
  transition: opacity var(--mg-transition);
  border-radius: var(--mg-radius);
}
.mg-card:hover .mg-overlay,
.mg-card:focus-within .mg-overlay {
  opacity: 1;
}
.mg-overlay-title {
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
  text-shadow: 0 1px 3px rgba(0,0,0,.5);
  margin: 0 0 6px;
}

/* ---------- Favourite / expand actions ---------- */
.mg-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}
.mg-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  transition: transform .15s, background .15s;
}
.mg-btn-fav {
  background: rgba(255,255,255,.2);
  color: #fff;
  backdrop-filter: blur(4px);
}
.mg-btn-fav:hover,
.mg-btn-fav.active { background: #e0245e; color: #fff; transform: scale(1.15); }
.mg-btn-expand {
  background: rgba(255,255,255,.2);
  color: #fff;
  backdrop-filter: blur(4px);
}
.mg-btn-expand:hover { background: rgba(255,255,255,.35); transform: scale(1.1); }

/* ---------- Category badge ---------- */
.mg-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--mg-accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 50px;
  letter-spacing: .4px;
  text-transform: uppercase;
  pointer-events: none;
}

/* ---------- Empty state ---------- */
.mg-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--mg-subtext);
  font-size: 15px;
  display: none;
}
.mg-empty.visible { display: block; }
.mg-empty .fa { font-size: 40px; opacity: .3; display: block; margin-bottom: 12px; }

/* ---------- Load-more button ---------- */
.mg-load-more-wrap {
  text-align: center;
  margin-top: 32px;
}
.mg-load-more {
  padding: 12px 36px;
  border: 2px solid var(--mg-accent);
  border-radius: 50px;
  background: transparent;
  color: var(--mg-accent);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--mg-transition);
}
.mg-load-more:hover {
  background: var(--mg-accent);
  color: #fff;
}
.mg-load-more[hidden] { display: none; }

/* ---------- Full-screen lightbox ---------- */
.mg-lb-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.92);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.mg-lb-backdrop.open {
  opacity: 1;
  pointer-events: all;
}
.mg-lb-inner {
  position: relative;
  max-width: 92vw;
  max-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}
.mg-lb-img {
  max-width: 90vw;
  max-height: 86vh;
  border-radius: 8px;
  object-fit: contain;
  display: block;
  box-shadow: 0 8px 48px rgba(0,0,0,.7);
  transition: opacity .18s;
}
.mg-lb-caption {
  position: absolute;
  bottom: -32px;
  left: 0; right: 0;
  text-align: center;
  color: #ccc;
  font-size: 13px;
}
.mg-lb-close {
  position: fixed;
  top: 16px; right: 20px;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
  z-index: 10001;
}
.mg-lb-close:hover { background: rgba(255,255,255,.3); }

.mg-lb-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
  z-index: 10001;
}
.mg-lb-nav:hover { background: rgba(255,255,255,.3); }
.mg-lb-prev { left: 16px; }
.mg-lb-next { right: 16px; }

/* Counter badge in lightbox */
.mg-lb-counter {
  position: fixed;
  top: 20px; left: 50%;
  transform: translateX(-50%);
  color: #ccc;
  font-size: 12px;
  z-index: 10001;
}

/* ---------- Accessibility ---------- */
.mg-card:focus { outline: 3px solid var(--mg-accent); outline-offset: 2px; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}