/**
 * WooCommerce Product Video Gallery Pro — Frontend Styles
 *
 * @package WC_Product_Video_Gallery
 */

/* ============================================================
   CSS Custom Properties (overridden by PHP via :root injection)
   ============================================================ */
:root {
  --wcpvg-primary:       #6d28d9;
  --wcpvg-primary-dark:  #5b21b6;
  --wcpvg-bg:            #0f172a;
  --wcpvg-surface:       #1e293b;
  --wcpvg-text:          #f1f5f9;
  --wcpvg-muted:         #94a3b8;
  --wcpvg-border:        #334155;
  --wcpvg-radius:        10px;
  --wcpvg-gap:           20px;
  --wcpvg-transition:    0.25s cubic-bezier(.4,0,.2,1);
  --wcpvg-shadow:        0 4px 20px rgba(0,0,0,.25);
  --wcpvg-shadow-hover:  0 8px 32px rgba(0,0,0,.35);
}

/* ============================================================
   Shared / Reset
   ============================================================ */
.wcpvg-gallery *,
.wcpvg-gallery *::before,
.wcpvg-gallery *::after {
  box-sizing: border-box;
}

.wcpvg-gallery {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--wcpvg-text);
  --aspect-ratio: calc(9/16 * 100%); /* 16:9 default */
}

/* Aspect ratio helpers */
.wcpvg-aspect-16x9  { --aspect-ratio: 56.25%; }
.wcpvg-aspect-4x3   { --aspect-ratio: 75%; }
.wcpvg-aspect-1x1   { --aspect-ratio: 100%; }
.wcpvg-aspect-9x16  { --aspect-ratio: 177.78%; }

.wcpvg-video-wrap {
  position: relative;
  width: 100%;
  padding-top: var(--aspect-ratio, 56.25%);
  overflow: hidden;
  background: #000;
  border-radius: var(--wcpvg-radius) var(--wcpvg-radius) 0 0;
}

.wcpvg-video-wrap video,
.wcpvg-video-wrap iframe,
.wcpvg-video-wrap .wcpvg-yt-facade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.wcpvg-video-player {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.wcpvg-iframe {
  border: none;
}

/* ============================================================
   YouTube Facade (lazy-load clickable poster)
   ============================================================ */
.wcpvg-yt-facade {
  cursor: pointer;
  overflow: hidden;
  background: #000;
}

.wcpvg-yt-facade .wcpvg-thumb-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--wcpvg-transition), filter var(--wcpvg-transition);
}

.wcpvg-yt-facade:hover .wcpvg-thumb-img {
  transform: scale(1.04);
  filter: brightness(.75);
}

.wcpvg-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  width: 64px;
  height: 64px;
  transition: transform var(--wcpvg-transition), opacity var(--wcpvg-transition);
  z-index: 2;
}

.wcpvg-play-btn--lg {
  width: 88px;
  height: 88px;
}

.wcpvg-play-btn:hover {
  transform: translate(-50%, -50%) scale(1.12);
  opacity: .9;
}

.wcpvg-play-btn svg { width: 100%; height: 100%; }

/* Loading spinner (shown while iframe loads) */
.wcpvg-video-wrap.wcpvg-loading::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: wcpvg-spin .7s linear infinite;
}

@keyframes wcpvg-spin { to { transform: rotate(360deg); } }

/* ============================================================
   Video card shared
   ============================================================ */
.wcpvg-video-card {
  background: var(--wcpvg-surface);
  border-radius: var(--wcpvg-radius);
  box-shadow: var(--wcpvg-shadow);
  overflow: hidden;
  transition: transform var(--wcpvg-transition), box-shadow var(--wcpvg-transition);
  display: flex;
  flex-direction: column;
}

.wcpvg-video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--wcpvg-shadow-hover);
}

/* Aspect ratio for card video-wrap (no padding-top trick needed when inside flex) */
.wcpvg-video-card .wcpvg-video-wrap {
  flex-shrink: 0;
}

.wcpvg-video-title {
  font-size: 14px;
  font-weight: 600;
  margin: 12px 14px 6px;
  color: var(--wcpvg-text);
  line-height: 1.4;
}

.wcpvg-video-description {
  font-size: 13px;
  color: var(--wcpvg-muted);
  margin: 0 14px 14px;
  line-height: 1.6;
}

/* ============================================================
   Layout 1: Grid
   ============================================================ */
.wcpvg-layout-grid {
  display: grid;
  gap: var(--wcpvg-gap);
  grid-template-columns: repeat( var(--wcpvg-cols, 3), minmax(0, 1fr) );
}

/* Set column variable from data attribute via CSS */
.wcpvg-cols-1 { --wcpvg-cols: 1; }
.wcpvg-cols-2 { --wcpvg-cols: 2; }
.wcpvg-cols-3 { --wcpvg-cols: 3; }
.wcpvg-cols-4 { --wcpvg-cols: 4; }
.wcpvg-cols-5 { --wcpvg-cols: 5; }
.wcpvg-cols-6 { --wcpvg-cols: 6; }

/* Responsive breakpoints */
@media (max-width: 1024px) {
  .wcpvg-layout-grid {
    grid-template-columns: repeat( min(var(--wcpvg-cols, 3), 2), minmax(0, 1fr) );
  }
}

@media (max-width: 600px) {
  .wcpvg-layout-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Layout 2: Slider / Carousel
   ============================================================ */
.wcpvg-layout-slider {
  position: relative;
}

.wcpvg-slider-track-wrap {
  overflow: hidden;
  border-radius: var(--wcpvg-radius);
}

.wcpvg-slider-track {
  display: flex;
  transition: transform 0.45s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}

.wcpvg-slide {
  flex: 0 0 100%;
  min-width: 0;
}

.wcpvg-slide .wcpvg-video-wrap {
  border-radius: var(--wcpvg-radius);
}

.wcpvg-slide .wcpvg-video-title {
  margin-top: 14px;
  font-size: 16px;
}

/* Slider buttons */
.wcpvg-slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,.12);
  backdrop-filter: blur(8px);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background var(--wcpvg-transition), transform var(--wcpvg-transition);
}

.wcpvg-slider-btn:hover { background: rgba(255,255,255,.25); }
.wcpvg-slider-btn svg { width: 20px; height: 20px; }

.wcpvg-prev { left: 12px; }
.wcpvg-next { right: 12px; }

/* Dots */
.wcpvg-slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}

.wcpvg-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--wcpvg-border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background var(--wcpvg-transition), transform var(--wcpvg-transition);
}

.wcpvg-dot--active,
.wcpvg-dot:hover {
  background: var(--wcpvg-primary);
  transform: scale(1.3);
}

/* ============================================================
   Layout 3: Video List
   ============================================================ */
.wcpvg-layout-list {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--wcpvg-gap);
  align-items: start;
}

.wcpvg-list-player-area {
  grid-column: 2;
  grid-row: 1 / 99;
}

.wcpvg-list-player-area .wcpvg-video-wrap {
  border-radius: var(--wcpvg-radius);
}

.wcpvg-list-item {
  display: flex;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--wcpvg-radius);
  cursor: pointer;
  transition: background var(--wcpvg-transition);
  border: 1px solid transparent;
}

.wcpvg-list-item:hover,
.wcpvg-list-item--active {
  background: var(--wcpvg-surface);
  border-color: var(--wcpvg-primary);
}

.wcpvg-list-thumb {
  position: relative;
  flex-shrink: 0;
  width: 100px;
  height: 60px;
  border-radius: 6px;
  overflow: hidden;
  background: #000;
}

.wcpvg-list-thumb .wcpvg-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter var(--wcpvg-transition);
}

.wcpvg-list-item:hover .wcpvg-list-thumb .wcpvg-thumb-img {
  filter: brightness(.7);
}

.wcpvg-list-play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  opacity: 0;
  transition: opacity var(--wcpvg-transition);
}

.wcpvg-list-item:hover .wcpvg-list-play-icon { opacity: 1; }
.wcpvg-list-play-icon svg { width: 20px; height: 20px; }

.wcpvg-list-info {
  flex: 1;
  min-width: 0;
}

.wcpvg-list-info .wcpvg-video-title {
  margin: 0 0 4px;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.wcpvg-video-source-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 2px 7px;
  border-radius: 20px;
}

.wcpvg-source-local   { background: #dbeafe; color: #1d4ed8; }
.wcpvg-source-youtube { background: #fee2e2; color: #dc2626; }

@media (max-width: 768px) {
  .wcpvg-layout-list {
    grid-template-columns: 1fr;
  }

  .wcpvg-list-player-area {
    grid-column: 1;
    grid-row: auto;
  }
}

/* ============================================================
   Layout 4: Featured + Thumbnails
   ============================================================ */
.wcpvg-layout-featured {}

.wcpvg-featured-player {
  margin-bottom: var(--wcpvg-gap);
}

.wcpvg-featured-player .wcpvg-video-wrap {
  border-radius: var(--wcpvg-radius);
}

.wcpvg-featured-title {
  font-size: 18px;
  margin: 16px 0 8px;
}

/* Thumbnail strip */
.wcpvg-thumb-strip {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--wcpvg-primary) var(--wcpvg-surface);
}

.wcpvg-thumb-strip::-webkit-scrollbar { height: 4px; }
.wcpvg-thumb-strip::-webkit-scrollbar-track { background: var(--wcpvg-surface); }
.wcpvg-thumb-strip::-webkit-scrollbar-thumb { background: var(--wcpvg-primary); border-radius: 2px; }

.wcpvg-thumb-strip-item {
  flex: 0 0 160px;
  cursor: pointer;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid transparent;
  transition: border-color var(--wcpvg-transition), transform var(--wcpvg-transition);
  scroll-snap-align: start;
}

.wcpvg-thumb-strip-item:hover,
.wcpvg-thumb-strip-item--active {
  border-color: var(--wcpvg-primary);
  transform: translateY(-2px);
}

.wcpvg-thumb-strip-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  overflow: hidden;
}

.wcpvg-thumb-strip-img-wrap .wcpvg-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter var(--wcpvg-transition);
}

.wcpvg-thumb-strip-item:hover .wcpvg-thumb-img { filter: brightness(.7); }

.wcpvg-thumb-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  opacity: 0;
  transition: opacity var(--wcpvg-transition);
}

.wcpvg-thumb-strip-item:hover .wcpvg-thumb-play-overlay { opacity: 1; }
.wcpvg-thumb-play-overlay svg { width: 22px; height: 22px; }

.wcpvg-thumb-strip-title {
  display: block;
  font-size: 12px;
  padding: 6px 8px;
  color: var(--wcpvg-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: var(--wcpvg-surface);
}

/* ============================================================
   Layout 5: Horizontal Scroll
   ============================================================ */
.wcpvg-layout-horizontal-scroll {
  position: relative;
}

.wcpvg-hscroll-track {
  display: flex;
  gap: var(--wcpvg-gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--wcpvg-primary) var(--wcpvg-surface);
}

.wcpvg-hscroll-track::-webkit-scrollbar { height: 4px; }
.wcpvg-hscroll-track::-webkit-scrollbar-track { background: var(--wcpvg-surface); }
.wcpvg-hscroll-track::-webkit-scrollbar-thumb { background: var(--wcpvg-primary); border-radius: 2px; }

.wcpvg-hscroll-item {
  flex: 0 0 300px;
  scroll-snap-align: start;
}

.wcpvg-hscroll-btn {
  position: absolute;
  top: 35%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,.12);
  backdrop-filter: blur(6px);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  transition: background var(--wcpvg-transition);
}

.wcpvg-hscroll-btn:hover { background: rgba(255,255,255,.22); }
.wcpvg-hscroll-btn svg { width: 18px; height: 18px; }
.wcpvg-hscroll-prev { left: -20px; }
.wcpvg-hscroll-next { right: -20px; }

/* ============================================================
   Auto-Inject Wrapper (automatic product page placement)
   ============================================================ */
.wcpvg-auto-inject-wrap {
  margin: 40px 0;
  padding: 0;
}

.wcpvg-auto-inject-heading {
  font-size: 1.4em;
  font-weight: 700;
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--wcpvg-border);
  color: var(--wcpvg-text);
}

/* ============================================================
   Gutenberg block notice
   ============================================================ */
.wcpvg-block-notice {
  padding: 16px;
  background: #f3f0ff;
  border-radius: 8px;
  color: #5b21b6;
  font-style: italic;
}

/* ============================================================
   Dark mode (respects prefers-color-scheme)
   ============================================================ */
@media (prefers-color-scheme: light) {
  :root {
    --wcpvg-bg:      #f8fafc;
    --wcpvg-surface: #ffffff;
    --wcpvg-text:    #0f172a;
    --wcpvg-muted:   #64748b;
    --wcpvg-border:  #e2e8f0;
    --wcpvg-shadow:  0 2px 12px rgba(0,0,0,.08);
    --wcpvg-shadow-hover: 0 6px 24px rgba(0,0,0,.14);
  }

  .wcpvg-video-wrap { background: #e2e8f0; }
  .wcpvg-slider-btn { background: rgba(0,0,0,.12); color: #1e293b; }
  .wcpvg-slider-btn:hover { background: rgba(0,0,0,.22); }
  .wcpvg-hscroll-btn { background: rgba(0,0,0,.08); color: #1e293b; }
  .wcpvg-hscroll-btn:hover { background: rgba(0,0,0,.16); }
  .wcpvg-dot { background: #cbd5e1; }
}