/* Base styles */
:root {
  --transition-duration: 0.3s;
}

/* Card styles */
.discipline-card {
  @apply bg-white dark:bg-gray-800 rounded-lg shadow-sm hover:shadow-md transition-all duration-200;
  transform: translateY(0);
}

.discipline-card:hover {
  transform: translateY(-2px);
}

/* Icon container styles */
.icon-container {
  @apply p-3 rounded-full mr-4 transition-colors duration-200;
}

/* Search input styles */
.search-input {
  @apply pl-10 pr-4 py-2 border rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600 dark:text-white dark:placeholder-gray-400;
  transition: all var(--transition-duration);
}

/* Theme toggle button styles */
.theme-toggle {
  @apply p-2 rounded-lg hover:bg-gray-100 dark:hover:bg-gray-800 transition-colors;
  transition-duration: var(--transition-duration);
}

/* Smooth transitions for dark mode */
.dark-mode-transition {
  transition: background-color var(--transition-duration) ease,
              color var(--transition-duration) ease,
              border-color var(--transition-duration) ease;
}

/* Video grid styles */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.video-card {
  @apply bg-white dark:bg-gray-800 rounded-lg overflow-hidden shadow-sm hover:shadow-md transition-all duration-200;
}

.video-thumbnail {
  position: relative;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  background: #f3f4f6;
  overflow: hidden;
}

.video-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.video-card:hover .video-thumbnail img {
  transform: scale(1.05);
}

.video-duration {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
}

.video-info {
  padding: 1rem;
}

.video-title {
  @apply text-lg font-semibold text-gray-900 dark:text-white mb-2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  @apply text-sm text-gray-600 dark:text-gray-400;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.video-channel {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.channel-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.channel-name {
  @apply text-sm text-gray-600 dark:text-gray-400;
}

/* Video player modal */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.video-modal.active {
  opacity: 1;
  visibility: visible;
}

.video-modal-content {
  width: 90%;
  max-width: 1200px;
  position: relative;
}

.video-modal-close {
  position: absolute;
  top: -2rem;
  right: 0;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

.video-modal-iframe {
  width: 100%;
  aspect-ratio: 16/9;
  border: none;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Focus styles */
:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #3b82f6;
  color: white;
  padding: 8px;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .video-grid {
    grid-template-columns: 1fr;
  }
  
  .video-modal-content {
    width: 95%;
  }
}

/* Library Section Styles */
.library-category {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.library-category:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.library-category i {
  transition: transform 0.3s ease;
}

.library-category:hover i {
  transform: scale(1.1);
}

.library-category ul li {
  transition: transform 0.2s ease;
}

.library-category ul li:hover {
  transform: translateX(4px);
}

.library-category a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: background-color 0.2s ease;
}

.library-category a:hover {
  background-color: rgba(59, 130, 246, 0.1);
}

.library-category a i {
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.library-category a:hover i {
  opacity: 1;
}

/* Library Search Styles */
.search-input {
  padding-left: 2.5rem;
  transition: all 0.3s ease;
}

.search-input:focus {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* Library Stats Styles */
.library-stats {
  transition: transform 0.3s ease;
}

.library-stats:hover {
  transform: translateY(-2px);
}

/* Dark Mode Adjustments */
.dark .library-category a:hover {
  background-color: rgba(59, 130, 246, 0.2);
}

.dark .search-input {
  background-color: rgba(255, 255, 255, 0.05);
}

.dark .search-input:focus {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .library-category {
    margin-bottom: 1rem;
  }
  
  .library-stats {
    margin-bottom: 1rem;
  }
}