/* ============================================
   YT Channel Showcase v3 — Frontend CSS
   Dark theme ready. No layout switcher shown.
   ============================================ */

.ytcs-wrap {
  --ytcs-accent:   #f5c518;
  --ytcs-card-bg:  #000000;
  --ytcs-title:    #ffffff;
  --ytcs-meta:     #aaaaaa;
  --ytcs-bdr:      #222222;
  --ytcs-bdr-w:    1px;
  --ytcs-radius:   10px;
  --ytcs-cols:     3;
  font-family: inherit;
  width: 100%;
}

/* Error */
.ytcs-error {
  color: #f5c518;
  background: #111;
  padding: 14px 18px;
  border-radius: 8px;
  border: 1px solid #333;
  font-size: 14px;
}

/* ============================================
   SHARED CARD BASE
   ============================================ */
.ytcs-card {
  background: var(--ytcs-card-bg);
  border-radius: var(--ytcs-radius);
  border: var(--ytcs-bdr-w) solid var(--ytcs-bdr);
  overflow: hidden;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  display: block;
}

.ytcs-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 36px rgba(0,0,0,.8), 0 0 0 1px var(--ytcs-accent);
  border-color: var(--ytcs-accent);
}

/* Thumbnail */
.ytcs-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #080808;
  display: block;
}

.ytcs-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}

.ytcs-card:hover .ytcs-thumb img,
.ytcs-list-item:hover .ytcs-thumb img {
  transform: scale(1.06);
}

/* Play overlay */
.ytcs-play-ov {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background .25s ease;
}

.ytcs-play-ov svg {
  opacity: 0;
  transform: scale(.85);
  transition: opacity .25s ease, transform .25s ease;
  filter: drop-shadow(0 2px 12px rgba(0,0,0,.9));
}

.ytcs-card:hover .ytcs-play-ov,
.ytcs-list-item:hover .ytcs-play-ov {
  background: rgba(0,0,0,.3);
}

.ytcs-card:hover .ytcs-play-ov svg,
.ytcs-list-item:hover .ytcs-play-ov svg {
  opacity: 1;
  transform: scale(1.1);
}

/* Meta block */
.ytcs-meta {
  padding: 12px 14px 14px;
  background: var(--ytcs-card-bg);
}

.ytcs-title {
  margin: 0 0 7px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ytcs-title);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ytcs-desc {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--ytcs-meta);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ytcs-stats {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--ytcs-accent);
  flex-wrap: wrap;
}

/* ============================================
   GRID LAYOUT
   ============================================ */
.ytcs-grid {
  display: grid;
  grid-template-columns: repeat(var(--ytcs-cols), 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .ytcs-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .ytcs-grid { grid-template-columns: 1fr; }
}

/* ============================================
   MASONRY LAYOUT
   ============================================ */
.ytcs-masonry {
  columns: var(--ytcs-cols);
  column-gap: 20px;
}

.ytcs-masonry .ytcs-card {
  break-inside: avoid;
  margin-bottom: 20px;
}

.ytcs-masonry .ytcs-thumb {
  aspect-ratio: auto;
  min-height: 100px;
}

@media (max-width: 900px) { .ytcs-masonry { columns: 2; } }
@media (max-width: 560px) { .ytcs-masonry { columns: 1; } }

/* ============================================
   LIST LAYOUT
   ============================================ */
.ytcs-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ytcs-list-item {
  display: flex;
  align-items: stretch;
  background: var(--ytcs-card-bg);
  border-radius: var(--ytcs-radius);
  border: var(--ytcs-bdr-w) solid var(--ytcs-bdr);
  overflow: hidden;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.ytcs-list-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,.7), 0 0 0 1px var(--ytcs-accent);
  border-color: var(--ytcs-accent);
}

.ytcs-list-thumb {
  flex: 0 0 240px;
}

.ytcs-list-thumb .ytcs-thumb {
  height: 100%;
  aspect-ratio: auto;
  border-radius: 0;
}

.ytcs-list-info {
  flex: 1;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--ytcs-card-bg);
}

.ytcs-list-info .ytcs-title {
  font-size: 15px;
  -webkit-line-clamp: 3;
  margin-bottom: 8px;
}

@media (max-width: 640px) {
  .ytcs-list-item { flex-direction: column; }
  .ytcs-list-thumb { flex: none; }
  .ytcs-list-thumb .ytcs-thumb { aspect-ratio: 16/9; height: auto; }
}

/* ============================================
   SLIDER LAYOUT
   ============================================ */
.ytcs-slider-wrap {
  position: relative;
  overflow: hidden;
}

.ytcs-slider-track {
  display: flex;
  transition: transform .4s cubic-bezier(.25,.46,.45,.94);
  will-change: transform;
}

.ytcs-slide {
  flex: 0 0 calc(100% / var(--ytcs-cols));
  padding: 0 8px;
  box-sizing: border-box;
}

@media (max-width: 900px) { .ytcs-slide { flex-basis: 50%; } }
@media (max-width: 560px) { .ytcs-slide { flex-basis: 100%; } }

.ytcs-sl-prev,
.ytcs-sl-next {
  position: absolute;
  top: 38%;
  transform: translateY(-50%);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,.12);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 26px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background .2s, border-color .2s, color .2s;
}

.ytcs-sl-prev:hover,
.ytcs-sl-next:hover {
  background: var(--ytcs-accent);
  border-color: var(--ytcs-accent);
  color: #000;
}

.ytcs-sl-prev { left: 4px; }
.ytcs-sl-next { right: 4px; }

.ytcs-sl-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}

.ytcs-sl-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background .2s, transform .2s;
}

.ytcs-sl-dot.active {
  background: var(--ytcs-accent);
  transform: scale(1.5);
}

/* ============================================
   PAGINATION
   ============================================ */
.ytcs-pagi {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.ytcs-pg-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--ytcs-bdr);
  background: var(--ytcs-card-bg);
  color: var(--ytcs-meta);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color .2s, color .2s;
  cursor: pointer;
}

.ytcs-pg-btn:hover {
  border-color: var(--ytcs-accent);
  color: var(--ytcs-accent);
}

.ytcs-pg-off {
  opacity: .3;
  pointer-events: none;
  cursor: default;
}

.ytcs-pg-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--ytcs-bdr);
  background: var(--ytcs-card-bg);
  color: var(--ytcs-meta);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all .2s;
}

.ytcs-pg-num:hover {
  border-color: var(--ytcs-accent);
  color: var(--ytcs-accent);
}

.ytcs-pg-num.active {
  background: var(--ytcs-accent);
  border-color: var(--ytcs-accent);
  color: #000;
}

/* ============================================
   LIGHTBOX
   ============================================ */
.ytcs-lb {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity .25s ease, visibility .25s ease;
}

.ytcs-lb.open {
  visibility: visible;
  opacity: 1;
}

.ytcs-lb-ov {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.92);
  cursor: pointer;
}

.ytcs-lb-box {
  position: relative;
  z-index: 1;
  width: 92%;
  max-width: 960px;
  background: #0c0c0c;
  border: 1px solid #222;
  border-radius: 12px;
  overflow: hidden;
  transform: scale(.9);
  transition: transform .25s ease;
}

.ytcs-lb.open .ytcs-lb-box {
  transform: scale(1);
}

.ytcs-lb-vid {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.ytcs-lb-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.ytcs-lb-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: rgba(255,255,255,.1);
  border: none;
  color: #fff;
  font-size: 24px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background .2s;
}

.ytcs-lb-close:hover {
  background: var(--ytcs-accent);
  color: #000;
}

.ytcs-lb-title {
  padding: 10px 16px;
  color: #aaa;
  font-size: 13px;
  margin: 0;
  background: #080808;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Inline video */
.ytcs-inline-player {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--ytcs-radius);
  overflow: hidden;
}

.ytcs-inline-player iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}