.pn-widget {
  /* Widget colors - can be dynamically set via JavaScript for Squarespace integration */
  --pn-primary: var(--site-color-accent, #1a73e8);
  --pn-primary-hover: var(--site-color-accent-dark, #1557b0);
  --pn-bg: var(--site-color-bg, #ffffff);
  --pn-surface: var(--site-color-surface, #f8f9fa);
  --pn-border: var(--site-color-border, #dadce0);
  --pn-text: var(--site-color-text, #202124);
  --pn-text-secondary: var(--site-color-text-secondary, #5f6368);
  --pn-error: #d93025;
  --pn-space-xs: 0.25rem;
  --pn-space-sm: 0.5rem;
  --pn-space-md: 1rem;
  --pn-space-lg: 1.5rem;
  --pn-space-xl: 2rem;
  --pn-radius: 8px;
  --pn-radius-sm: 4px;
  --pn-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

  font-family: var(--pn-font-family);
  color: var(--pn-text);
  line-height: 1.5;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--pn-space-lg);
}

.pn-widget * {
  box-sizing: border-box;
}

/* Configuration */
.pn-config {
  text-align: center;
  padding: var(--pn-space-xl);
  background: var(--pn-surface);
  border-radius: var(--pn-radius);
  max-width: 500px;
  margin: 0 auto;
}

.pn-config h3 {
  margin: 0 0 var(--pn-space-md);
  font-size: 1.5rem;
  font-weight: 600;
}

.pn-config p {
  margin: 0 0 var(--pn-space-md);
  color: var(--pn-text-secondary);
}

.pn-config-form {
  display: flex;
  gap: var(--pn-space-sm);
  margin-bottom: var(--pn-space-md);
}

.pn-input {
  flex: 1;
  padding: 0.75rem var(--pn-space-md);
  border: 1px solid var(--pn-border);
  border-radius: var(--pn-radius-sm);
  font-size: 1rem;
  font-family: var(--pn-font-family);
  background: var(--pn-bg);
  color: var(--pn-text);
  transition: border-color 0.2s;
}

.pn-input:focus {
  outline: none;
  border-color: var(--pn-primary);
}

.pn-btn {
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--pn-border);
  border-radius: var(--pn-radius-sm);
  background: var(--pn-bg);
  color: var(--pn-text);
  font-size: 1rem;
  font-family: var(--pn-font-family);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.pn-btn:hover:not(:disabled) {
  background: var(--pn-surface);
}

.pn-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pn-btn-primary {
  background: var(--pn-primary);
  color: var(--site-color-accent-text, white);
  border-color: var(--pn-primary);
}

.pn-btn-primary:hover:not(:disabled) {
  background: var(--pn-primary-hover);
  color: var(--site-color-accent-text, white);
  border-color: var(--pn-primary-hover);
}

.pn-btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.pn-help-text {
  font-size: 0.875rem;
  margin: 0;
}

.pn-help-text a {
  color: var(--pn-primary);
  text-decoration: none;
}

.pn-help-text a:hover {
  text-decoration: underline;
}

/* Loading */
.pn-loading {
  text-align: center;
  padding: var(--pn-space-xl);
}

.pn-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--pn-border);
  border-top-color: var(--pn-primary);
  border-radius: 50%;
  animation: pn-spin 1s linear infinite;
  margin: 0 auto var(--pn-space-md);
}

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

/* Error */
.pn-error {
  text-align: center;
  padding: var(--pn-space-xl);
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--pn-radius);
  max-width: 600px;
  margin: 0 auto;
}

.pn-error-message {
  color: var(--pn-error);
  margin: 0 0 var(--pn-space-md);
  font-weight: 500;
}

/* Header */
.pn-header {
  margin-bottom: var(--pn-space-lg);
  text-align: center;
}

.pn-header h2 {
  margin: 0 0 var(--pn-space-sm);
  font-size: 2rem;
  font-weight: 600;
}

.pn-subtitle {
  margin: 0;
  color: var(--pn-text-secondary);
  font-size: 1rem;
}

.pn-last-updated {
  margin: 0.25rem 0 0 0;
  color: var(--pn-text-muted);
  font-size: 0.75rem;
  opacity: 0.6;
}

/* Controls */
.pn-controls {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--pn-space-md);
  margin-bottom: var(--pn-space-md);
}

.pn-search {
  grid-column: 1 / 2;
}

.pn-select {
  padding: 0.75rem 2.5rem 0.75rem var(--pn-space-md);
  border: 1px solid var(--pn-border);
  border-radius: var(--pn-radius-sm);
  font-size: 1rem;
  font-family: var(--pn-font-family);
  background: var(--pn-bg);
  color: var(--pn-text);
  cursor: pointer;
  transition: border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235f6368' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--pn-space-md) center;
}

.pn-select:focus {
  outline: none;
  border-color: var(--pn-primary);
}

/* Toolbar */
.pn-toolbar {
  display: flex;
  gap: var(--pn-space-sm);
  margin-bottom: var(--pn-space-lg);
  justify-content: space-between;
  align-items: center;
}

.pn-layout-toggle {
  display: flex;
  align-items: center;
  gap: var(--pn-space-xs);
}

.pn-layout-toggle svg {
  flex-shrink: 0;
}

/* Empty state */
.pn-empty {
  text-align: center;
  padding: var(--pn-space-xl);
  color: var(--pn-text-secondary);
}

/* Playlists */
.pn-playlists {
  display: flex;
  flex-direction: column;
  gap: var(--pn-space-md);
}

.pn-playlist-section {
  background: var(--pn-bg);
  border: 1px solid var(--pn-border);
  border-radius: var(--pn-radius);
  overflow: hidden;
}

.pn-playlist-header {
  display: flex;
  align-items: center;
  gap: var(--pn-space-md);
  padding: var(--pn-space-md) var(--pn-space-lg);
  background: var(--pn-surface);
  cursor: pointer;
  transition: background 0.2s;
  user-select: none;
}

.pn-playlist-header:hover {
  background: var(--site-color-surface-hover, #e8eaed);
}

.pn-chevron {
  flex-shrink: 0;
  transition: transform 0.2s;
}

.pn-playlist-header.pn-collapsed .pn-chevron {
  transform: rotate(-90deg);
}

.pn-playlist-info {
  flex: 1;
  display: flex;
  align-items: baseline;
  gap: var(--pn-space-md);
  flex-wrap: wrap;
}

.pn-playlist-title-group {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pn-playlist-info h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--pn-text);
}

.pn-video-count {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--pn-text-secondary);
  margin-left: 0.5rem;
}

.pn-playlist-description {
  margin: 0;
  font-size: 0.875rem;
  color: var(--pn-text-secondary);
  line-height: 1.4;
}

/* Video List */
.pn-video-list {
  border-top: 1px solid var(--pn-border);
}

.pn-video-item {
  display: flex;
  gap: var(--pn-space-sm);
  padding: var(--pn-space-sm) var(--pn-space-md);
  border-bottom: 1px solid var(--pn-border);
  transition: background 0.2s;
}

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

.pn-video-item:hover {
  background: var(--pn-surface);
}

.pn-video-thumbnail {
  position: relative;
  flex-shrink: 0;
  width: 120px;
  height: 68px;
  border-radius: var(--pn-radius-sm);
  overflow: hidden;
  background: #000;
}

.pn-video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.2s;
}

.pn-video-thumbnail:hover img {
  opacity: 0.9;
}

.pn-duration {
  position: absolute;
  bottom: 4px;
  right: 4px;
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 2px 6px;
  border-radius: var(--pn-radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.pn-video-details {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pn-video-title {
  margin: 0 0 var(--pn-space-xs);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.3;
}

.pn-video-title a {
  color: var(--pn-text);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pn-video-title a:hover {
  color: var(--pn-primary);
}

.pn-video-meta {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--pn-text-secondary);
}

/* Grid View */
.pn-video-grid-container {
  padding: var(--pn-space-sm) var(--pn-space-md);
  border-top: 1px solid var(--pn-border);
}

.pn-video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--pn-space-md);
}

.pn-video-card {
  background: var(--pn-bg);
  border: 1px solid var(--pn-border);
  border-radius: var(--pn-radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.pn-video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.pn-video-card .pn-thumbnail {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
}

.pn-video-card .pn-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.2s;
}

.pn-video-card .pn-thumbnail:hover img {
  opacity: 0.9;
}

.pn-video-card .pn-video-info {
  padding: var(--pn-space-sm);
}

.pn-video-card .pn-video-title {
  margin: 0 0 var(--pn-space-xs);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.3;
}

.pn-video-card .pn-video-title a {
  color: var(--pn-text);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pn-video-card .pn-video-title a:hover {
  color: var(--pn-primary);
}

.pn-video-card .pn-video-meta {
  margin: 0;
  font-size: 0.75rem;
  color: var(--pn-text-secondary);
}

/* Pagination */
.pn-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--pn-space-md);
  padding: var(--pn-space-md) 0;
}

.pn-page-info {
  color: var(--pn-text-secondary);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  .pn-widget {
    padding: var(--pn-space-md);
  }

  .pn-header h2 {
    font-size: 1.5rem;
  }

  .pn-controls {
    grid-template-columns: 1fr;
  }

  .pn-search {
    grid-column: 1;
  }

  .pn-config-form {
    flex-direction: column;
  }

  .pn-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .pn-toolbar > div {
    width: 100%;
  }

  .pn-video-item {
    flex-direction: column;
  }

  .pn-video-thumbnail {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
  }

  .pn-playlist-info {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--pn-space-xs);
  }

  .pn-video-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--pn-space-sm);
  }

  .pn-pagination {
    flex-wrap: wrap;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .pn-video-item .pn-video-thumbnail {
    width: 100px;
    height: 56px;
  }

  .pn-video-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
}

@media (min-width: 1025px) {
  .pn-video-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
}