* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  color: #333;
  width: 400px;
  max-height: 600px;
  overflow-y: auto;
}

#app {
  padding: 16px;
}

header {
  margin-bottom: 16px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

h1 {
  font-size: 20px;
  color: #333;
}

h2 {
  font-size: 16px;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid #ddd;
}

.playlist-name-clickable {
  cursor: pointer;
  color: #4285f4;
  transition: color 0.2s ease;
}

.playlist-name-clickable:hover {
  color: #3367d6;
  text-decoration: underline;
}

.playlist {
  background: #fff;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.video-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #eee;
}

.video-item:last-child {
  border-bottom: none;
}

.video-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

a.video-title {
  text-decoration: none;
  color: #333;
}

.video-actions {
  display: flex;
  gap: 8px;
}

button {
  padding: 4px 8px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
}

button:hover {
  opacity: 0.9;
}

.empty-playlist {
  padding: 8px 0;
  color: #888;
  font-style: italic;
  font-size: 14px;
}

.current-video {
  background-color: #e3f2fd;
  border-left: 3px solid #4285f4;
  padding-left: 8px;
  font-weight: bold;
}

.done-video {
  color: #999;
  opacity: 0.6;
}

.done-video .video-title {
  text-decoration: line-through;
}

.non-contiguous-done-video {
  opacity: 0.7;
  background-color: rgba(128, 128, 128, 0.05);
}

.non-contiguous-done-video .video-title {
  color: #666;
}

/* Truncated videos indicator */
.truncated-videos {
  padding: 8px 0 12px 8px;
  margin-bottom: 12px;
  border-bottom: 1px solid #eee;
  cursor: pointer;
  color: #888;
  font-style: italic;
  font-size: 14px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.truncated-videos:hover {
  color: #4285f4;
  background-color: #f8f9fa;
}

/* More menu styles */
.more-menu-container {
  position: relative;
}

.more-btn {
  background-color: #666;
  color: white;
  font-size: 14px;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: bold;
}

.more-menu {
  position: absolute;
  right: 0;
  top: 100%;
  background: white;
  border: 1px solid #ddd;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  min-width: 100px;
  margin-top: 4px;
}

.menu-item {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
  font-size: 12px;
  border-radius: 0;
}

.menu-item:hover {
  background-color: #f5f5f5;
}

.remove-item {
  color: #f44336;
}

.remove-item:hover {
  background-color: #ffeaea;
}

/* Back button styles */
.back-btn {
  background-color: #4285f4;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  margin-bottom: 8px;
}

.back-btn:hover {
  background-color: #3367d6;
}

/* Arrow back button styles */
.back-btn-arrow {
  position: absolute;
  left: 0;
  background: none;
  border: none;
  font-size: 20px;
  color: #4285f4;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 50%;
  transition: background-color 0.2s ease, color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.back-btn-arrow:hover {
  background-color: #e8f0fe;
  color: #3367d6;
}

/* History view styles */
.history-container {
  background: #fff;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  min-height: 200px;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.history-item {
  border-bottom: 1px solid #eee;
  padding-bottom: 12px;
}

.history-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.history-video-info {
  margin-bottom: 8px;
}

.history-video-title {
  display: block;
  font-weight: bold;
  color: #333;
  text-decoration: none;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-video-title:hover {
  color: #4285f4;
}

.history-video-id {
  font-size: 12px;
  color: #4285f4;
  font-family: monospace;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
}

.history-video-id:hover {
  color: #3367d6;
  text-decoration: underline;
}

.history-tags {
  margin-top: 6px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag-chip {
  font-size: 10px;
  padding: 2px 8px;
  border: 1px solid #ddd;
  border-radius: 12px;
  background-color: #f8f9fa;
  color: #666;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tag-chip:hover {
  background-color: #e8f0fe;
  border-color: #4285f4;
  color: #4285f4;
}

.tag-chip.active {
  background-color: #4285f4;
  border-color: #4285f4;
  color: white;
}

.tag-chip.active:hover {
  background-color: #3367d6;
  border-color: #3367d6;
}

.history-events {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-left: 12px;
}

.history-event {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #555;
}

.event-action {
  font-weight: bold;
  min-width: 60px;
}

.event-position {
  color: #666;
  font-family: monospace;
  min-width: 70px;
}

.event-timestamp {
  color: #888;
  font-size: 11px;
  margin-left: auto;
}

.empty-history {
  text-align: center;
  padding: 40px 0;
  color: #888;
  font-style: italic;
}

/* History button styles */
.history-btn {
  background-color: #34a853;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
}

.history-btn:hover {
  background-color: #2d7d3a;
}

/* Playlist view styles */
.playlist-view-container {
  background: #fff;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  min-height: 200px;
}

.playlist-full-view {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.playlist-full-view .video-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #eee;
}

.playlist-full-view .video-item:last-child {
  border-bottom: none;
}

/* Add current page button styles */
.add-current-page-container {
  display: flex;
  flex-wrap: wrap;
  row-gap: 6px;
  column-gap: 4px;
  margin-bottom: 12px;
}

.add-current-page-btn {
  width: fit-content;
  background-color: #4285f4;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
}

.add-current-page-btn:hover:not(:disabled) {
  background-color: #3367d6;
}

.add-current-page-btn:disabled,
.add-current-page-btn.disabled {
  background-color: #ccc;
  color: #888;
  cursor: not-allowed;
}

.add-current-page-btn:disabled:hover,
.add-current-page-btn.disabled:hover {
  background-color: #ccc;
}

/* Save Channel view styles */
.save-channel-container {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  min-height: 300px;
}

.save-channel-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.curl-command-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.curl-field-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.curl-command-field {
  width: 100%;
  min-height: 120px;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-family: monospace;
  font-size: 12px;
  background-color: #f8f9fa;
  resize: vertical;
  line-height: 1.4;
}

.copy-curl-btn {
  align-self: flex-start;
  background-color: #4285f4;
  color: white;
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.copy-curl-btn:hover {
  background-color: #3367d6;
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(66, 133, 244, 0.3);
}

.copy-curl-btn:active {
  background-color: #2d5aa0;
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(66, 133, 244, 0.4);
  transition: all 0.1s ease;
}

.copy-curl-btn:disabled {
  background-color: #ccc;
  color: #888;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.copy-curl-btn:disabled:hover {
  background-color: #ccc;
  transform: none;
  box-shadow: none;
}

.interval-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.interval-label {
  font-size: 14px;
  font-weight: 500;
  color: #333;
}

.interval-input {
  width: 100px;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background-color: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.interval-input:focus {
  outline: none;
  border-color: #4285f4;
  box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

.interval-input:invalid {
  border-color: #f44336;
}

.category-section h3 {
  margin-bottom: 12px;
  color: #333;
  font-size: 16px;
  font-weight: 500;
}

.category-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.category-btn {
  padding: 8px 16px;
  border: 2px solid #ddd;
  border-radius: 6px;
  background-color: #f8f9fa;
  color: #666;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.category-btn:hover {
  border-color: #4285f4;
  background-color: #e8f0fe;
  color: #4285f4;
}

.category-btn.active {
  border-color: #4285f4;
  background-color: #4285f4;
  color: white;
}

.category-btn.active:hover {
  border-color: #3367d6;
  background-color: #3367d6;
}

.save-channel-notice {
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 6px;
  padding: 12px;
  color: #856404;
  font-size: 14px;
}

.save-channel-notice p {
  margin: 0;
}

/* Save Channel button styles */
.save-channel-btn {
  background-color: #ff6d01;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
}

.save-channel-btn:hover {
  background-color: #e55a00;
}

/* Wiki/Insp view styles */
.wiki-insp-container {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  min-height: 300px;
}

.wiki-insp-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.wikitext-command-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.wikitext-command-field {
  width: 100%;
  min-height: 120px;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-family: monospace;
  font-size: 12px;
  background-color: #f8f9fa;
  resize: vertical;
  line-height: 1.4;
}

.timestamp-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
}

.timestamp-checkbox-container {
  display: flex;
  align-items: center;
}

.timestamp-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #333;
  cursor: pointer;
  user-select: none;
}

.timestamp-checkbox {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: #4285f4;
}

.refresh-timestamp-btn {
  background-color: #34a853;
  color: white;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.refresh-timestamp-btn:hover:not(:disabled) {
  background-color: #2d7d3a;
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(52, 168, 83, 0.3);
}

.refresh-timestamp-btn:active {
  background-color: #1e5f2a;
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(52, 168, 83, 0.4);
  transition: all 0.1s ease;
}

.refresh-timestamp-btn:disabled {
  background-color: #ccc;
  color: #888;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.refresh-timestamp-btn:disabled:hover {
  background-color: #ccc;
  transform: none;
  box-shadow: none;
}

.copy-wikitext-btn {
  width: 100%;
  background-color: #4285f4;
  color: white;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.copy-wikitext-btn:hover:not(:disabled) {
  background-color: #3367d6;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
}

.copy-wikitext-btn:active {
  background-color: #2d5aa0;
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(66, 133, 244, 0.4);
  transition: all 0.1s ease;
}

.copy-wikitext-btn:disabled {
  background-color: #ccc;
  color: #888;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.copy-wikitext-btn:disabled:hover {
  background-color: #ccc;
  transform: none;
  box-shadow: none;
}

.wiki-insp-notice {
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 6px;
  padding: 12px;
  color: #856404;
  font-size: 14px;
}

.wiki-insp-notice p {
  margin: 0;
}

/* Wiki/Insp button styles */
.wiki-insp-btn {
  background-color: #9c27b0;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
}

.wiki-insp-btn:hover {
  background-color: #7b1fa2;
}

/* Import view styles */
.import-container {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  min-height: 300px;
}

.import-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.import-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.import-textarea {
  width: 100%;
  min-height: 450px;
  max-height: 500px;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-family: monospace;
  font-size: 12px;
  background-color: #f8f9fa;
  resize: vertical;
  line-height: 1.4;
}

.import-textarea:focus {
  outline: none;
  border-color: #4285f4;
  box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

.import-submit-btn {
  width: 100%;
  background-color: #34a853;
  color: white;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.import-submit-btn:hover {
  background-color: #2d7d3a;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(52, 168, 83, 0.3);
}

.import-submit-btn:active {
  background-color: #1e5f2a;
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(52, 168, 83, 0.4);
  transition: all 0.1s ease;
}

/* Import button styles */
.import-btn {
  background-color: #34a853;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
}

.import-btn:hover {
  background-color: #2d7d3a;
}

/* Export button styles */
.export-btn {
  background-color: #4285f4;
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
}

.export-btn:hover {
  background-color: #3367d6;
}

.export-container {
  display: flex;
  flex-wrap: wrap;
  row-gap: 6px;
  column-gap: 4px;
  margin-bottom: 12px;
}

.move-to-playlist-item {
  color: #555;
}

.move-to-submenu {
  border-top: 1px solid #eee;
}

.move-to-playlist-option {
  padding-left: 20px;
  color: #4285f4;
}

.move-to-playlist-option:hover {
  background-color: #e8f0fe;
}