/*
 * library.css — V8.0
 * Styles de l'écran bibliothèque, upload, toast, spinners, vignettes.
 * Requiert base.css chargé en premier (utilise les variables CSS de :root).
 */

/* ── Écran bibliothèque ──────────────────────────────────────────────────── */
#libraryScreen {
  display: none;
  width: 100%;
  height: 100%;
  flex-direction: column;
  background: var(--bg);
  overflow: hidden;
}
#libraryScreen.active { display: flex; }

/* Header de la bibliothèque : recherche + boutons */
.lib-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px 12px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.lib-search {
  position: relative;
  flex: 1;
  min-width: 0;
}
.lib-search input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 13px;
  padding: 7px 14px 7px 34px;
  outline: none;
  width: 100%;
  box-sizing: border-box;
  transition: border-color .15s;
}
.lib-search input:focus { border-color: var(--accent); }
.lib-search input::placeholder { color: var(--muted); }
.lib-search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 14px;
  pointer-events: none;
}
.lib-count {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

/* Bouton mode hors-ligne uniquement */
.lib-cache-only-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  background: var(--surface2);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, color .15s, border-color .15s;
  flex-shrink: 0;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  min-height: 36px;
  min-width: 44px;
}
.lib-cache-only-btn:hover { border-color: var(--accent); color: var(--accent); }
.lib-cache-only-btn.active {
  background: rgba(61,207,142,.15);
  color: var(--ok);
  border-color: var(--ok);
}

/* Boutons refresh En cours / nouveaux livres */
.lib-refresh-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  background: var(--surface2);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 16px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
  flex-shrink: 0;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  min-height: 36px;
  min-width: 44px;
}
.lib-refresh-btn:hover  { border-color: var(--accent); color: var(--accent); }
.lib-refresh-btn:active { transform: scale(.94); }
.lib-refresh-btn.spinning { animation: lib-spin .7s linear infinite; }
@keyframes lib-spin { to { transform: rotate(360deg); } }

/* Bouton upload */
.lib-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 20px;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, transform .1s;
  flex-shrink: 0;
}
.lib-upload-btn:hover   { background: var(--accent2); }
.lib-upload-btn:active  { transform: scale(.97); }
.lib-upload-btn:disabled { opacity: .55; cursor: default; }

/* Toast notification */
.lib-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 20px;
  font-size: 13px;
  color: var(--text);
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
  white-space: nowrap;
}
.lib-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.lib-toast.success { border-color: var(--ok);  }
.lib-toast.error   { border-color: var(--err); }

/* Corps de la bibliothèque */
.lib-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  -webkit-overflow-scrolling: touch;
}

/* Titres de sections (En cours / Bibliothèque) */
.lib-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.lib-section-title.lib-section-reading {
  color: var(--accent);
  border-bottom-color: rgba(91,142,240,.3);
}
/* Séparateur horizontal entre sections */
.lib-section-sep {
  height: 1px;
  background: var(--border);
  margin: 8px 0 28px;
  opacity: .5;
}

/* Grille de vignettes */
.lib-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

/* Vignette livre */
.lib-book {
  cursor: pointer;
  touch-action: manipulation; /* supprime le délai 300ms tap iOS */
  border-radius: var(--r);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform .18s, border-color .18s, box-shadow .18s;
  animation: bookIn .25s ease both;
  position: relative; /* pour les boutons absolus delete/cache */
}
@keyframes bookIn {
  from { opacity: 0; transform: translateY(8px) scale(.97); }
  to   { opacity: 1; transform: none; }
}
/* hover uniquement sur appareils avec pointeur (évite le double-tap iOS) */
@media (hover: hover) {
  .lib-book:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(91,142,240,.15);
  }
}
.lib-book:active { transform: scale(.98); }

/* Zone image couverture */
.lib-book-cover {
  width: 100%;
  aspect-ratio: 2/3;
  background: var(--surface2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.lib-book-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* Placeholder quand pas de couverture */
.lib-book-cover-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px;
  text-align: center;
  width: 100%;
  height: 100%;
}
.lib-book-cover-placeholder .ph-icon { font-size: 28px; opacity: .35; }
.lib-book-cover-placeholder .ph-title {
  font-size: 10px;
  color: var(--muted);
  line-height: 1.3;
  font-family: var(--font-serif);
  font-style: italic;
  word-break: break-word;
}

/* Barre de progression sur vignette */
.lib-book-progress {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,.1);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 6px;
  flex-shrink: 0;
}
.lib-book-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #f0a840, #f06840);
  border-radius: 3px;
  box-shadow: 0 0 6px rgba(240,104,64,.6);
}

/* Infos texte sous la vignette */
.lib-book-info {
  padding: 8px 10px 10px;
  display: flex;
  flex-direction: column;
  min-height: 72px;
}
.lib-book-title {
  font-size: 11px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 3px;
}
.lib-book-author {
  font-size: 10px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* États vides et chargement */
.lib-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}
.lib-empty-icon { font-size: 40px; margin-bottom: 12px; }
.lib-empty-text { font-size: 14px; }
.lib-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

/* Masquer la bibliothèque en mode lecture */
body.reading-mode #libraryScreen { display: none !important; }

/* ── Bouton suppression vignette (admin uniquement) ──────────────────────── */
.lib-book-delete {
  position: absolute;
  top: 6px;
  right: 6px;
  z-index: 10;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(240,96,96,.85);
  border: none;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .15s, transform .1s;
}
@media (hover: hover) {
  .lib-book:hover .lib-book-delete { opacity: 1; }
  .lib-book-delete:hover { transform: scale(1.15); background: rgba(240,96,96,1); }
}

/* ── Bouton cache offline sur vignettes ──────────────────────────────────── */
.lib-book-cache {
  position: absolute;
  top: 6px;
  left: 0;
  z-index: 10;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(14,15,17,.7);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .15s, background .15s;
}
@media (hover: hover) {
  .lib-book:hover .lib-book-cache { opacity: 1; }
  .lib-book-cache:hover { background: rgba(91,142,240,.8); color: #fff; border-color: var(--accent); }
}
.lib-book-cache.cached {
  opacity: 1;
  background: rgba(61,207,142,.85);
  color: #fff;
  border-color: var(--ok);
}
.lib-book-cache.cached:hover { background: rgba(61,207,142,1); }

/* ── Spinners ────────────────────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }

/* Spinner global plein écran (chargement bibliothèque, upload…) */
#globalSpinner {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 8000;
  background: rgba(14,15,17,.6);
  backdrop-filter: blur(3px);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
}
#globalSpinner.active { display: flex; }
#globalSpinner .gs-ring {
  width: 72px;
  height: 72px;
  border: 5px solid rgba(91,142,240,.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .75s linear infinite;
}
#globalSpinner .gs-label {
  font-size: 14px;
  color: var(--text);
  opacity: .7;
  font-family: var(--font-ui);
}

/* Overlay chargement overlay sur le cover screen */
#coverLoadingOverlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(245,240,232,.82);
  backdrop-filter: blur(2px);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  border-radius: 16px;
}
#coverLoadingOverlay.active { display: flex; }
#coverLoadingOverlay .cl-ring {
  width: 56px;
  height: 56px;
  border: 4px solid rgba(91,142,240,.18);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .75s linear infinite;
}
#coverLoadingOverlay .cl-label {
  font-size: 13px;
  color: #374151;
  font-family: var(--font-ui);
}
#coverLoadingOverlay .cl-size {
  font-size: 11px;
  color: #9ca3af;
  font-family: var(--font-mono);
}

/* Spinner de sync (recalage inter-device) */
.sync-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(91,142,240,.25);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
.sync-label {
  font-size: 13px;
  color: var(--text);
  opacity: .85;
  font-family: var(--font-ui);
}

/* ── Responsive bibliothèque ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  .lib-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
  .lib-body { padding: 12px; }
  .lib-search { min-width: 0; }
  /* Masquer le texte du bouton upload sur mobile — garder juste l'icône */
  .lib-upload-btn .upload-label { display: none; }
  .lib-upload-btn { padding: 7px 13px; font-size: 18px; flex-shrink: 0; }
  .lib-cache-only-btn { padding: 7px 10px; font-size: 12px; }
}