@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

@keyframes bounceCount {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

@keyframes thumbZoom {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

.page-enter {
  animation: fadeIn 0.3s ease;
}

.video-card {
  animation: fadeInUp 0.4s ease both;
}

.video-card:nth-child(1) { animation-delay: 0.02s; }
.video-card:nth-child(2) { animation-delay: 0.04s; }
.video-card:nth-child(3) { animation-delay: 0.06s; }
.video-card:nth-child(4) { animation-delay: 0.08s; }
.video-card:nth-child(5) { animation-delay: 0.1s; }
.video-card:nth-child(6) { animation-delay: 0.12s; }
.video-card:nth-child(7) { animation-delay: 0.14s; }
.video-card:nth-child(8) { animation-delay: 0.16s; }
.video-card:nth-child(9) { animation-delay: 0.18s; }
.video-card:nth-child(10) { animation-delay: 0.2s; }

.video-card.reloading {
  animation: none;
  opacity: 0.4;
  pointer-events: none;
}

.video-grid.loading .video-card {
  animation: none;
}

.skeleton-card {
  aspect-ratio: 16 / 9;
  background: linear-gradient(90deg, #1a1a1a 25%, #2a2a2a 50%, #1a1a1a 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

.video-thumb .play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.video-card:hover .play-overlay {
  opacity: 1;
}

.video-card:hover .thumb-placeholder,
.video-card:hover .thumb-img,
.video-card:hover .thumb-fallback.visible {
  transform: scale(1.06);
}

.play-overlay svg {
  width: 48px;
  height: 48px;
  fill: var(--accent);
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
  transform: scale(0.8);
  transition: transform 0.2s ease;
}

.video-card:hover .play-overlay svg {
  transform: scale(1);
}

.category-tile {
  animation: fadeInUp 0.4s ease both;
}

.category-tile:nth-child(odd) { animation-delay: 0.05s; }
.category-tile:nth-child(even) { animation-delay: 0.1s; }

.nav-item.has-dropdown:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-item.has-dropdown.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-link .chevron {
  transition: transform 0.2s ease;
}

.nav-item.open .chevron,
.nav-item.has-dropdown:hover .chevron {
  transform: rotate(180deg);
}

.icon-btn .badge-dot {
  animation: pulse 2s infinite;
}

.like-btn.active,
.dislike-btn.active {
  color: var(--accent) !important;
  border-color: var(--accent) !important;
}

.like-btn.active svg {
  fill: var(--accent);
}

.count-bump {
  animation: bounceCount 0.3s ease;
}

.btn-subscribe.subscribed {
  background: var(--bg-tertiary);
  border-color: var(--border);
  color: var(--text-secondary);
}

.btn-subscribe.subscribed:hover {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.comment-item.new-comment {
  animation: fadeInUp 0.4s ease;
}

.player-placeholder.playing .play-button {
  opacity: 0;
  pointer-events: none;
}

.player-placeholder.playing .player-controls {
  opacity: 1;
}

.player-controls {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity 0.25s ease;
  background: linear-gradient(transparent 50%, rgba(0,0,0,0.85));
}

.player-placeholder:hover .player-controls {
  opacity: 1;
}

.progress-bar-wrap {
  padding: 0 12px 8px;
  cursor: pointer;
}

.progress-bar {
  height: 4px;
  background: rgba(255,255,255,0.2);
  border-radius: 2px;
  overflow: hidden;
  transition: height 0.15s ease;
}

.progress-bar-wrap:hover .progress-bar {
  height: 6px;
}

.progress-fill {
  height: 100%;
  width: 35%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.1s linear;
}

.controls-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
}

.ctrl-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease;
}

.ctrl-btn:hover {
  background: rgba(255,255,255,0.15);
}

.ctrl-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.volume-slider {
  width: 60px;
  height: 4px;
  -webkit-appearance: none;
  background: rgba(255,255,255,0.3);
  border-radius: 2px;
  outline: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
}

.time-display {
  font-size: 12px;
  color: #fff;
  margin-left: auto;
}

.quality-btn {
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 2px;
}

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

.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: #000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(255,153,0,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 900;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.scroll-top svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.load-more-wrap {
  text-align: center;
  padding: 24px 0;
}

.btn-load-more {
  padding: 10px 32px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-load-more:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
}

.btn-load-more.loading {
  pointer-events: none;
  opacity: 0.7;
}

.btn-load-more.loading::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-left: 8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px 0;
}

.page-btn {
  min-width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  transition: all 0.15s ease;
}

.page-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.page-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
  font-weight: 600;
}

.page-btn.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.sort-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 12px;
}

.sort-bar .result-count {
  font-size: 13px;
  color: var(--text-muted);
}

.sort-dropdown-wrap {
  position: relative;
}

.sort-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 12px;
  transition: all 0.15s ease;
}

.sort-dropdown-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.sort-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 160px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.15s ease;
  z-index: 50;
}

.sort-dropdown-wrap.open .sort-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sort-dropdown button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  color: var(--text-secondary);
  font-size: 12px;
  border-bottom: 1px solid var(--border);
  transition: all 0.15s ease;
}

.sort-dropdown button:last-child {
  border-bottom: none;
}

.sort-dropdown button:hover,
.sort-dropdown button.active {
  background: var(--bg-hover);
  color: var(--accent);
}

.category-search {
  margin-bottom: 16px;
}

.category-search input {
  width: 100%;
  max-width: 400px;
  height: 38px;
  padding: 0 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s ease;
}

.category-search input:focus {
  border-color: var(--accent);
}

.share-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 200px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.15s ease;
  z-index: 50;
}

.share-wrap.open .share-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.share-dropdown button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  color: var(--text-secondary);
  font-size: 12px;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease;
}

.share-dropdown button:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.action-btn-wrap {
  position: relative;
}

.action-btn.liked {
  color: var(--accent);
  border-color: var(--accent);
}