/**
 * TubeRaker Library — shared page styles for the "library" page group:
 *   videos/index.html, playlists/index.html, history/index.html.
 *
 * Defines every grid/card/state/toolbar class those three templates reference
 * but that no shared stylesheet provides. Reuses shared surfaces from
 * components.css (.card, .btn, .badge, .progress, .spinner) and modals.css.
 *
 * Constraints: all sizes in rem (no px); colours only via variables.css tokens.
 * Both light and dark themes must render correctly.
 */

/* ===================================================================== */
/* Shell + breadcrumb                                                    */
/* ===================================================================== */
.library-shell {
  /* Local pragmatic tokens for text/fills that must stay stable in BOTH
     themes (translucent dark pills over thumbnails read as "overlays", not
     theme surfaces). Mirrors the sanctioned pattern in pages/trends.css —
     a shared --color-scrim / --color-on-scrim token is a shared_request. */
  --library-scrim: rgba(15, 23, 42, 0.82);
  --library-on-scrim: #ffffff;

  max-width: var(--content-max-width);
  margin-inline: auto;
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

@media (min-width: 48rem) {
  .library-shell {
    padding: var(--spacing-xl);
  }
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-xs);
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  min-width: 0;
}

.breadcrumb__item:not(:first-child)::before {
  content: "\f054"; /* fa chevron-right */
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 0.625rem;
  color: var(--text-tertiary);
  margin-right: var(--spacing-xs);
}

.breadcrumb__current {
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 60vw;
}

.text-muted {
  color: var(--text-secondary);
}

/* ===================================================================== */
/* Page header                                                           */
/* ===================================================================== */
.page-header {
  margin-bottom: var(--spacing-lg);
}

.page-header-row {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.page-header-row h1 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
  margin: 0;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin-top: var(--spacing-xs);
  margin-bottom: 0;
}

.page-header-row > .btn {
  width: 100%;
  min-height: 2.75rem;
}

@media (min-width: 40rem) {
  .page-header-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-header-row h1 {
    font-size: var(--font-size-4xl);
  }

  .page-header-row > .btn {
    width: auto;
  }
}

/* ===================================================================== */
/* Filter / toolbar                                                      */
/* ===================================================================== */
.filter-bar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.filter-bar .form-group {
  margin-bottom: 0;
}

.filter-bar .form-input,
.filter-bar .form-select {
  min-height: 2.75rem;
  width: 100%;
}

/* Search field with a leading magnifier icon */
.filter-search {
  position: relative;
  flex: 1 1 16rem;
}

.filter-search__icon {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.filter-search .form-input {
  padding-left: 2.5rem;
}

@media (min-width: 40rem) {
  .filter-bar--inline {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .filter-bar--inline .form-select {
    width: auto;
    min-width: 12rem;
  }
}

/* Result-count / active-filter feedback line */
.results-meta {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0 0 var(--spacing-md);
  min-height: 1.25rem;
}

/* ===================================================================== */
/* Grids                                                                 */
/* ===================================================================== */
.video-grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 16rem), 1fr));
}

.playlist-grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

/* ===================================================================== */
/* Video card                                                           */
/* ===================================================================== */
.video-card {
  padding: 0;
  overflow: hidden;
  border: 0.0625rem solid var(--border-primary);
  display: flex;
  flex-direction: column;
}

.video-thumbnail {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-secondary);
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-duration {
  position: absolute;
  right: var(--spacing-sm);
  bottom: var(--spacing-sm);
  background: var(--library-scrim);
  color: var(--library-on-scrim);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
}

.video-content {
  padding: var(--spacing-md);
  display: grid;
  gap: var(--spacing-xs);
}

.video-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-sm);
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
}

/* ===================================================================== */
/* Playlist card                                                        */
/* ===================================================================== */
.playlist-card {
  padding: 0;
  overflow: hidden;
  border: 0.0625rem solid var(--border-primary);
  display: flex;
  flex-direction: column;
}

.playlist-thumbnail {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: var(--spacing-sm);
}

.playlist-thumbnail__glyph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-4xl);
  color: var(--text-tertiary);
}

.playlist-count {
  position: relative;
  z-index: 1;
  background: var(--library-scrim);
  color: var(--library-on-scrim);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  gap: var(--spacing-xs);
  align-items: center;
}

.playlist-content {
  padding: var(--spacing-md);
  display: grid;
  gap: var(--spacing-xs);
}

.playlist-content h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===================================================================== */
/* History                                                              */
/* ===================================================================== */
.history-date-group {
  display: grid;
  gap: var(--spacing-md);
}

.history-date {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: sticky;
  top: 3.75rem;
  background: var(--bg-primary);
  padding: var(--spacing-xs) 0;
  margin: 0;
  z-index: 1;
}

.history-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--spacing-md);
  align-items: center;
  padding: var(--spacing-md);
  border: 0.0625rem solid var(--border-primary);
}

.history-item:hover {
  background: var(--bg-hover);
}

.history-thumbnail {
  position: relative;
  width: 8rem;
  max-width: 32vw;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
}

.history-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Progress overlay pinned to the bottom of the thumbnail */
.history-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 0.25rem;
  max-width: 100%;
  background: var(--color-brand-primary);
}

.history-content {
  min-width: 0;
  display: grid;
  gap: var(--spacing-xs);
}

.history-content h3 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.history-content p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.history-remove {
  min-width: 2.75rem;
  min-height: 2.75rem;
}

@media (max-width: 30rem) {
  .history-thumbnail {
    width: 6rem;
  }
}

/* ===================================================================== */
/* States: empty / loading / error                                       */
/* ===================================================================== */
.empty-state,
.loading-state,
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-md);
  color: var(--text-secondary);
}

.empty-state > i,
.error-state > i {
  font-size: var(--font-size-4xl);
}

.empty-state > i {
  color: var(--text-tertiary);
}

.error-state > i {
  color: var(--color-error);
}

.empty-state h3,
.error-state h3 {
  margin: 0;
  font-size: var(--font-size-xl);
  color: var(--text-primary);
}

.empty-state p,
.error-state p {
  margin: 0;
  max-width: 28rem;
}

.loading-state {
  padding: var(--spacing-3xl) 0;
}

/* Center a state inside a grid when it lives as a grid child */
.video-grid .empty-state,
.video-grid .loading-state,
.video-grid .error-state,
.playlist-grid .empty-state,
.playlist-grid .loading-state,
.playlist-grid .error-state {
  grid-column: 1 / -1;
}

/* ===================================================================== */
/* Skeleton loading cards                                                 */
/* ===================================================================== */
.skeleton-card {
  border: 0.0625rem solid var(--border-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-elevated);
}

.skeleton-card__media {
  aspect-ratio: 16 / 9;
  width: 100%;
}

.skeleton-card__body {
  padding: var(--spacing-md);
  display: grid;
  gap: var(--spacing-sm);
}

.skeleton-card__line {
  height: 0.75rem;
  border-radius: var(--radius-sm);
}

.skeleton-card__line--short {
  width: 60%;
}

/* ===================================================================== */
/* Pager                                                                */
/* ===================================================================== */
.library-pager {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-xl);
}

.library-pager .btn {
  min-height: 2.75rem;
}

/* ===================================================================== */
/* History stats strip                                                   */
/* ===================================================================== */
.history-stats {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 10rem), 1fr));
  margin-bottom: var(--spacing-lg);
}

.history-stat {
  padding: var(--spacing-md);
  border: 0.0625rem solid var(--border-primary);
  display: grid;
  gap: var(--spacing-xs);
}

.history-stat__value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.history-stat__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ===================================================================== */
/* Modal tweaks (scoped to the library create-playlist / upload modals)  */
/* Uses the shared .modal-overlay / .modal system from modals.css.        */
/* ===================================================================== */
.library-modal .modal-body {
  max-height: 85vh;
}

.library-modal .modal-footer {
  gap: var(--spacing-sm);
}

/* Upload modal file field */
.upload-dropzone {
  border: 0.0625rem dashed var(--border-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--text-secondary);
}

.upload-dropzone input[type="file"] {
  width: 100%;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}