/* ==========================================================================
   MyInteriorGallery – Frontend Stylesheet
   Covers: grid, masonry, carousel, slideshow, hover effects, lightbox,
   fade-in animations, and full responsiveness.
   ========================================================================== */

/* ── Custom Properties ──────────────────────────────────────────────────── */
:root {
  --myg-gap: 12px;
  --myg-radius: 6px;
  --myg-overlay-bg: rgba(0, 0, 0, 0.58);
  --myg-accent: #ffffff;
  --myg-caption-color: #fff;
  --myg-transition: 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  --myg-lb-dark-bg: rgba(10, 10, 10, 0.96);
  --myg-lb-light-bg: rgba(245, 245, 245, 0.97);
  --myg-lb-dark-color: #ffffff;
  --myg-lb-light-color: #1a1a1a;
}

/* ── Wrapper ─────────────────────────────────────────────────────────────── */
.myg-gallery-wrapper {
  box-sizing: border-box;
  width: 100%;
  padding: 0;
  margin: 0 0 2rem;
}

.myg-gallery-wrapper *,
.myg-gallery-wrapper *::before,
.myg-gallery-wrapper *::after {
  box-sizing: inherit;
}

/* ── Error / Empty States ────────────────────────────────────────────────── */
.myg-error,
.myg-empty {
  padding: 1rem 1.25rem;
  border-radius: var(--myg-radius);
  font-size: 0.95rem;
  margin: 0.5rem 0;
}
.myg-error {
  background: #fff3cd;
  color: #856404;
  border: 1px solid #ffc107;
}
.myg-empty {
  background: #f0f0f0;
  color: #555;
  border: 1px dashed #ccc;
  text-align: center;
}

/* ═══════════════════════════════════════════════════════════════════════════
   GRID & MASONRY
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Grid container ─────────────────────────────────────────────────────── */
.myg-grid {
  display: grid;
  gap: var(--myg-gap);
}

/* Column counts — controlled by data attribute mirrored onto class */
.myg-cols-2 .myg-grid { grid-template-columns: repeat(2, 1fr); }
.myg-cols-3 .myg-grid { grid-template-columns: repeat(3, 1fr); }
.myg-cols-4 .myg-grid { grid-template-columns: repeat(4, 1fr); }

/* Masonry: CSS columns (native, no JS required) */
.myg-grid-masonry {
  display: block;           /* Override grid for masonry */
  column-gap: var(--myg-gap);
}
.myg-cols-2 .myg-grid-masonry { column-count: 2; }
.myg-cols-3 .myg-grid-masonry { column-count: 3; }
.myg-cols-4 .myg-grid-masonry { column-count: 4; }

.myg-grid-masonry .myg-item {
  break-inside: avoid;
  margin-bottom: var(--myg-gap);
}

/* ── Grid item ──────────────────────────────────────────────────────────── */
.myg-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--myg-radius);
  /* Staggered fade-in */
  opacity: 0;
  animation: mygFadeIn 0.5s ease forwards;
}

@keyframes mygFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Thumbnail wrap ─────────────────────────────────────────────────────── */
.myg-thumb-wrap {
  position: relative;
  overflow: hidden;
  display: block;
  background: #e8e8e8;
  border-radius: var(--myg-radius);
}

/* Grid: enforce 1:1 aspect ratio for uniform cells */
.myg-grid-grid .myg-thumb-wrap {
  aspect-ratio: 1 / 1;
}

.myg-thumb {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--myg-transition);
  border-radius: var(--myg-radius);
  will-change: transform;
}

/* Masonry: natural image height */
.myg-grid-masonry .myg-thumb {
  height: auto;
}

/* Hover: scale up the image */
.myg-item:hover .myg-thumb {
  transform: scale(1.07);
}

/* ── Hover overlay ──────────────────────────────────────────────────────── */
.myg-overlay {
  position: absolute;
  inset: 0;
  background: var(--myg-overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--myg-transition);
  border-radius: var(--myg-radius);
}

.myg-item:hover .myg-overlay {
  opacity: 1;
}

.myg-overlay-inner {
  text-align: center;
  padding: 1rem;
  transform: translateY(8px);
  transition: transform var(--myg-transition);
  color: var(--myg-accent);
}

.myg-item:hover .myg-overlay-inner {
  transform: translateY(0);
}

.myg-zoom-icon svg {
  color: #fff;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
  transition: transform 0.2s;
}
.myg-item:hover .myg-zoom-icon svg {
  transform: scale(1.15);
}

.myg-overlay-caption {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
  text-shadow: 0 1px 3px rgba(0,0,0,0.6);
  max-width: 200px;
}

/* Link reset */
.myg-lightbox-trigger,
.myg-lightbox-trigger:hover,
.myg-lightbox-trigger:visited {
  text-decoration: none;
  display: block;
  color: inherit;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CAROUSEL & SLIDESHOW
   ═══════════════════════════════════════════════════════════════════════════ */

.myg-slider {
  position: relative;
  overflow: hidden;
  border-radius: var(--myg-radius);
  background: #111;
  user-select: none;
}

/* ── Slides track ───────────────────────────────────────────────────────── */
.myg-slides-track {
  position: relative;
  width: 100%;
}

.myg-slide {
  display: none;
  width: 100%;
  position: relative;
}

.myg-slide.is-active {
  display: block;
}

/* Slideshow fade transition */
.myg-layout-slideshow .myg-slide {
  display: block;
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  opacity: 0;
  transition: opacity 0.65s ease;
  pointer-events: none;
}
.myg-layout-slideshow .myg-slide.is-active {
  opacity: 1;
  position: relative;
  pointer-events: auto;
}

.myg-slide-img {
  display: block;
  width: 100%;
  max-height: 600px;
  object-fit: contain;
  border-radius: var(--myg-radius);
}

.myg-slide-caption {
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  padding: 0.75rem 1rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.65));
  color: #fff;
  font-size: 0.9rem;
  text-align: center;
  border-radius: 0 0 var(--myg-radius) var(--myg-radius);
}

/* ── Navigation arrows ──────────────────────────────────────────────────── */
.myg-slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  font-size: 1.4rem;
  width: 48px;
  height: 48px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transition: background 0.2s, transform 0.2s;
}
.myg-slider-btn:hover {
  background: rgba(255,255,255,0.35);
  transform: translateY(-50%) scale(1.1);
}
.myg-slider-btn:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}
.myg-prev { left: 12px; }
.myg-next { right: 12px; }

/* ── Dots ───────────────────────────────────────────────────────────────── */
.myg-dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.myg-dot {
  width: 10px;
  height: 10px;
  min-width: 44px;    /* Tap-friendly hit-area via padding */
  min-height: 44px;
  padding: 17px;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}
.myg-dot::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  transition: background 0.25s, transform 0.25s;
}
.myg-dot.is-active::after {
  background: #fff;
  transform: translate(-50%, -50%) scale(1.35);
}
.myg-dot:focus-visible::after {
  outline: 2px solid #fff;
}

/* ═══════════════════════════════════════════════════════════════════════════
   LIGHTBOX
   ═══════════════════════════════════════════════════════════════════════════ */

.myg-lightbox {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;

  /* Background determined by JS data attribute */
  background: var(--myg-lb-dark-bg);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.myg-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* Light theme override */
.myg-lightbox[data-bg="light"] {
  background: var(--myg-lb-light-bg);
}
.myg-lightbox[data-bg="light"] .myg-lb-caption {
  color: var(--myg-lb-light-color);
}
.myg-lightbox[data-bg="light"] .myg-lb-close,
.myg-lightbox[data-bg="light"] .myg-lb-arrow {
  color: var(--myg-lb-light-color);
  background: rgba(0,0,0,0.08);
}
.myg-lightbox[data-bg="light"] .myg-lb-close:hover,
.myg-lightbox[data-bg="light"] .myg-lb-arrow:hover {
  background: rgba(0,0,0,0.18);
}

/* ── Inner container ────────────────────────────────────────────────────── */
.myg-lb-inner {
  position: relative;
  max-width: 95vw;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── Image ──────────────────────────────────────────────────────────────── */
.myg-lb-image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--myg-radius);
  transition: transform var(--myg-transition);
}

.myg-lb-img {
  display: block;
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--myg-radius);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  transition: opacity 0.25s ease, transform 0.3s ease;
  will-change: opacity, transform;
}
.myg-lb-img.is-loading {
  opacity: 0;
  transform: scale(0.96);
}

/* ── Caption ────────────────────────────────────────────────────────────── */
.myg-lb-caption {
  color: var(--myg-lb-dark-color);
  font-size: 0.92rem;
  margin-top: 0.75rem;
  text-align: center;
  max-width: 80vw;
  line-height: 1.4;
  min-height: 1.4em;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

/* ── Counter ────────────────────────────────────────────────────────────── */
.myg-lb-counter {
  position: absolute;
  top: -2.5rem;
  left: 0;
  color: rgba(255,255,255,0.65);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}
.myg-lightbox[data-bg="light"] .myg-lb-counter {
  color: rgba(0,0,0,0.5);
}

/* ── Close button ───────────────────────────────────────────────────────── */
.myg-lb-close {
  position: fixed;
  top: 14px;
  right: 14px;
  width: 48px;
  height: 48px;
  min-width: 44px;
  min-height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000001;
  backdrop-filter: blur(4px);
  transition: background 0.2s, transform 0.2s;
  line-height: 1;
}
.myg-lb-close:hover {
  background: rgba(255,255,255,0.28);
  transform: scale(1.1) rotate(90deg);
}
.myg-lb-close:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* ── Lightbox arrows ────────────────────────────────────────────────────── */
.myg-lb-arrow {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  min-width: 44px;
  min-height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000001;
  backdrop-filter: blur(4px);
  transition: background 0.2s, transform 0.2s;
}
.myg-lb-arrow:hover {
  background: rgba(255,255,255,0.28);
}
.myg-lb-arrow:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}
.myg-lb-prev { left: 14px; }
.myg-lb-next { right: 14px; }
.myg-lb-prev:hover { transform: translateY(-50%) translateX(-3px); }
.myg-lb-next:hover { transform: translateY(-50%) translateX(3px); }

/* ── Zoom (optional pinch/wheel zoom) ──────────────────────────────────── */
.myg-lb-image-wrap.is-zoomed {
  cursor: zoom-out;
}
.myg-lb-image-wrap.is-zoomed .myg-lb-img {
  cursor: zoom-out;
}

/* ── Spinner ────────────────────────────────────────────────────────────── */
.myg-lb-spinner {
  width: 42px;
  height: 42px;
  border: 3px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: mygSpin 0.75s linear infinite;
  position: absolute;
}
@keyframes mygSpin {
  to { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Tablet (768–1023 px): force 2 columns ──────────────────────────────── */
@media (max-width: 1023px) {
  .myg-cols-3 .myg-grid-grid,
  .myg-cols-4 .myg-grid-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .myg-cols-3 .myg-grid-masonry,
  .myg-cols-4 .myg-grid-masonry {
    column-count: 2;
  }
  .myg-slider-btn { width: 42px; height: 42px; font-size: 1.1rem; }
}

/* ── Mobile (<768 px): 1 column ──────────────────────────────────────────── */
@media (max-width: 767px) {
  .myg-cols-2 .myg-grid-grid,
  .myg-cols-3 .myg-grid-grid,
  .myg-cols-4 .myg-grid-grid {
    grid-template-columns: 1fr;
  }
  .myg-cols-2 .myg-grid-masonry,
  .myg-cols-3 .myg-grid-masonry,
  .myg-cols-4 .myg-grid-masonry {
    column-count: 1;
  }

  .myg-lb-close  { top: 8px;  right: 8px;  width: 44px; height: 44px; }
  .myg-lb-arrow  { width: 44px; height: 44px; font-size: 1.2rem; }
  .myg-lb-prev   { left: 6px; }
  .myg-lb-next   { right: 6px; }
  .myg-lb-img    { max-width: 98vw; max-height: 75vh; }
  .myg-lb-caption { font-size: 0.82rem; }

  .myg-slider-btn { width: 38px; height: 38px; }
  .myg-slide-img  { max-height: 320px; }

  .myg-overlay-caption { display: none; } /* Caption shown in lightbox only */
}

/* ── Reduced motion ──────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .myg-item,
  .myg-thumb,
  .myg-overlay,
  .myg-overlay-inner,
  .myg-lb-img,
  .myg-lightbox,
  .myg-layout-slideshow .myg-slide {
    animation: none !important;
    transition: none !important;
  }
}