/* ==================== */
/* YOUTUBE SECTION */
/* ==================== */

.youtube-section {
  position: relative;
  overflow: hidden;
  padding: 4rem 0;
}

/* Параллакс фон для YouTube раздела */
.youtube-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at top, rgba(255, 0, 0, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(255, 87, 34, 0.06) 0%, transparent 50%);
  animation: youtubeParallaxPulse 15s ease-in-out infinite;
  z-index: 0;
}

@keyframes youtubeParallaxPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.youtube-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

/* YouTube видео карточки */
.youtube-video-card {
  position: relative;
  display: block;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(18, 18, 18, 0.95), rgba(33, 33, 33, 0.9));
  border: 2px solid rgba(255, 0, 0, 0.2);
  border-radius: 16px;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  text-decoration: none;
  cursor: pointer;
}

.youtube-video-card:hover {
  transform: translateY(-8px);
  box-shadow:
    0 20px 40px rgba(255, 0, 0, 0.3),
    0 0 25px rgba(255, 87, 34, 0.2);
  border-color: rgba(255, 0, 0, 0.5);
}

/* Thumbnail контейнер */
.youtube-thumbnail {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
  background: #000;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.youtube-video-card:hover .youtube-thumbnail {
  transform: scale(1.05);
  filter: brightness(0.8);
}

/* YouTube play button overlay */
.youtube-play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: rgba(255, 0, 0, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 2;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.youtube-play-overlay::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 25px solid white;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  margin-left: 5px;
}

.youtube-video-card:hover .youtube-play-overlay {
  transform: translate(-50%, -50%) scale(1.2);
  background: rgba(255, 0, 0, 1);
}

/* Duration badge */
.youtube-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  z-index: 2;
}

/* Информация о видео */
.youtube-video-info {
  padding: 1.25rem;
  position: relative;
  z-index: 2;
}

.youtube-video-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 0.75rem 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 2.8em;
}

.youtube-video-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.youtube-video-views,
.youtube-video-date {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.youtube-video-views::before {
  content: '👁';
  font-size: 1rem;
}

.youtube-video-date::before {
  content: '📅';
  font-size: 1rem;
}

/* CTA кнопка для канала */
.youtube-channel-cta {
  margin-top: 2rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.youtube-channel-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, #ff0000, #ff5722);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(255, 0, 0, 0.3);
}

.youtube-channel-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 30px rgba(255, 0, 0, 0.5);
  background: linear-gradient(135deg, #ff5722, #ff0000);
}

.youtube-channel-btn::before {
  content: '▶';
  font-size: 1.2rem;
  animation: playPulse 2s ease-in-out infinite;
}

@keyframes playPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* Loading state */
.youtube-loading {
  text-align: center;
  padding: 3rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
}

.youtube-loading::after {
  content: '...';
  animation: loadingDots 1.5s infinite;
}

@keyframes loadingDots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}

/* Error state */
.youtube-error {
  text-align: center;
  padding: 3rem;
  color: rgba(255, 100, 100, 0.9);
  font-size: 1rem;
  background: rgba(255, 0, 0, 0.1);
  border: 2px solid rgba(255, 0, 0, 0.3);
  border-radius: 12px;
}

/* ==================== */
/* MOBILE RESPONSIVE */
/* ==================== */

@media (max-width: 768px) {
  .youtube-section {
    padding: 3rem 0;
  }

  .youtube-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .youtube-video-card {
    border-radius: 12px;
  }

  .youtube-play-overlay {
    width: 60px;
    height: 60px;
  }

  .youtube-play-overlay::after {
    border-left: 18px solid white;
    border-top: 11px solid transparent;
    border-bottom: 11px solid transparent;
  }

  .youtube-video-title {
    font-size: 1rem;
  }

  .youtube-video-meta {
    font-size: 0.85rem;
    flex-wrap: wrap;
  }

  .youtube-channel-btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .youtube-section {
    padding: 2rem 0;
  }

  .youtube-grid {
    gap: 1rem;
  }

  .youtube-video-info {
    padding: 1rem;
  }

  .youtube-video-title {
    font-size: 0.95rem;
  }

  .youtube-play-overlay {
    width: 50px;
    height: 50px;
  }

  .youtube-play-overlay::after {
    border-left: 15px solid white;
    border-top: 9px solid transparent;
    border-bottom: 9px solid transparent;
  }
}

/* Tablet landscape */
@media (min-width: 769px) and (max-width: 1024px) {
  .youtube-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }
}

/* Large screens */
@media (min-width: 1025px) {
  .youtube-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}