/* ============================================
   LIBRIQ COMPONENTS
   Reusable UI building blocks
   ============================================ */

/* ── Buttons ──────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-width: 44px;
  min-height: 40px;
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: 1;
  border-radius: var(--radius-md);
  transition:
    background var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    filter var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    opacity var(--duration-fast);
  white-space: nowrap;
  cursor: pointer;
}

.btn:active { transform: scale(0.97); }
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  font-weight: var(--weight-semi);
}
.btn-primary:hover { filter: brightness(1.1); }

.btn-secondary {
  background: var(--gold-04);
  color: var(--text-body);
  border: 1px solid var(--gold-12);
}
.btn-secondary:hover {
  background: var(--gold-06);
  border-color: var(--gold-18);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-danger {
  background: var(--color-danger-dim);
  color: var(--color-danger);
}
.btn-danger:hover { background: var(--color-danger); color: var(--text-strong); }

.btn-sm {
  min-height: 30px;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  min-height: 44px;
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.btn-icon.btn-sm { width: 36px; height: 36px; }

/* ── Badges / Pills ───────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-full);
  line-height: 1.4;
  white-space: nowrap;
}

.badge-reading  { background: var(--color-info-dim);    color: var(--status-reading);  }
.badge-finished { background: var(--color-success-dim); color: var(--status-finished); }
.badge-wishlist { background: var(--accent-dim);        color: var(--status-wishlist); }
.badge-dnf      { background: var(--bg-overlay);       color: var(--status-dnf);      }
.badge-accent   { background: var(--accent-dim);        color: var(--text-accent);     }

/* ── Star Rating ──────────────────────────── */
.star-rating {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.star {
  font-size: 1rem;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: color var(--duration-fast), transform var(--duration-fast);
  line-height: 1;
}

.star.filled { color: var(--accent); }
.star:hover  { transform: scale(1.2); }

.star-rating.readonly .star { cursor: default; }
.star-rating.readonly .star:hover { transform: none; }

.star-sm .star { font-size: 0.75rem; }
.star-lg .star { font-size: 1.25rem; }

/* ── Book Cover ───────────────────────────── */
.book-cover {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--surface-3);
  box-shadow: var(--shadow-cover);
}

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

.book-cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: linear-gradient(
    135deg,
    var(--bg-elevated) 0%,
    var(--bg-overlay) 100%
  );
}

.book-cover-placeholder .cover-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-align: center;
  color: var(--text-secondary);
  line-height: var(--leading-snug);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-cover-placeholder i {
  font-size: 1.5rem;
  color: var(--text-tertiary);
  opacity: 0.5;
}

/* Cover sizes */
.cover-xs { width: 36px;  height: 52px; }
.cover-sm { width: 52px;  height: 76px; }
.cover-md { width: 80px;  height: 116px; }
.cover-lg { width: 110px; height: 160px; }
.cover-xl { width: 140px; height: 204px; }

/* ── Book Card ────────────────────────────── */
.book-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition:
    background var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out);
  cursor: pointer;
  position: relative;
}

.book-card:hover {
  background: var(--bg-elevated);
  border-color: var(--gold-18);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.book-card-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.book-card-title {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  line-height: var(--leading-snug);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-card-author {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.book-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
  flex-wrap: wrap;
}

.book-card-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
}

/* Progress bar within cards */
.reading-progress {
  margin-top: var(--space-3);
}

.progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-1);
}

.progress-text {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.progress-pct {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-accent);
  font-weight: var(--weight-medium);
}

.progress-bar {
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-strong), var(--gold));
  box-shadow: var(--glow-gold);
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-out);
  min-width: 4px;
}

.progress-fill.complete {
  background: linear-gradient(90deg, var(--green-deep), var(--green));
  box-shadow: var(--glow-green);
}


/* Keep existing favorite/unfavorite action controls visible on v2 surfaces. */
.book-card-actions .btn-ghost.btn-icon,
.reading-card-actions .btn-ghost,
.book-details-actions .btn-ghost.btn-icon {
  background: var(--bg-hover);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.book-card-actions .btn-ghost.btn-icon:hover,
.reading-card-actions .btn-ghost:hover,
.book-details-actions .btn-ghost.btn-icon:hover {
  background: var(--bg-active);
  border-color: var(--border-strong);
  color: var(--text-strong);
}



.book-card-actions .ph-fill.ph-heart,
.reading-card-actions .ph-fill.ph-heart,
.book-details-actions .ph-fill.ph-heart,
.book-card-actions .ph-heart-fill,
.reading-card-actions .ph-heart-fill,
.book-details-actions .ph-heart-fill {
  color: var(--gold) !important;
  opacity: 1;
  display: inline-block;
}

/* ── Grid Layouts ─────────────────────────── */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-4);
}

.books-shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: var(--space-4);
}

.shelf-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  cursor: pointer;
}

.shelf-item-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  text-align: center;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: var(--leading-snug);
}

.shelf-item:hover .book-cover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 4px 6px 18px rgba(0,0,0,0.35);
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

/* ── Stat Cards ───────────────────────────── */
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: border-color var(--duration-base), box-shadow var(--duration-base);
}

.stat-card:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-sm);
}

.stat-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: var(--space-1);
}

.stat-card-value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: -0.03em;
}

.stat-card-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.stat-card-change {
  font-size: var(--text-xs);
  color: var(--color-success);
  display: flex;
  align-items: center;
  gap: 2px;
}

/* ── Empty States ─────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--space-8);
  gap: var(--space-4);
}

.empty-state-icon {
  font-size: 3rem;
  color: var(--text-tertiary);
  opacity: 0.5;
  margin-bottom: var(--space-2);
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
}

.empty-state-body {
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 320px;
  line-height: var(--leading-loose);
}

/* ── Toast Notifications ──────────────────── */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  pointer-events: all;
  max-width: 360px;
  animation: toastIn var(--duration-slow) var(--ease-out) both;
}

.toast.removing {
  animation: toastOut var(--duration-base) var(--ease-in) both;
}

.toast i {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.toast-success { border-left: 3px solid var(--color-success); }
.toast-success i { color: var(--color-success); }

.toast-error { border-left: 3px solid var(--color-danger); }
.toast-error i { color: var(--color-danger); }

.toast-info { border-left: 3px solid var(--color-info); }
.toast-info i { color: var(--color-info); }

.toast-warning { border-left: 3px solid var(--color-warning); }
.toast-warning i { color: var(--color-warning); }

/* ── Genre / Tag Chips ────────────────────── */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    background var(--duration-fast),
    border-color var(--duration-fast),
    color var(--duration-fast);
}

.chip:hover, .chip.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text-accent);
}

/* ── Section Header ───────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-md);
  font-weight: var(--weight-semi);
  color: var(--text-primary);
}

.section-action {
  font-size: var(--text-sm);
  color: var(--text-accent);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: opacity var(--duration-fast);
}

.section-action:hover { opacity: 0.7; }

/* ── Form elements ────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
}

.form-input {
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  background: var(--surface-3);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  color: var(--text-strong);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.form-input:focus-visible {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-12);
}

.form-input::placeholder { color: var(--text-tertiary); }

.form-select {
  appearance: none;
  padding-right: var(--space-8);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239896A4' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: var(--leading-normal);
}

/* ── Tooltip ──────────────────────────────── */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-3);
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-fast);
  z-index: 100;
}

[data-tooltip]:hover::after {
  opacity: 1;
}

/* ── Skeleton Loading ─────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--surface-3) 25%,
    rgba(255,255,255,0.04) 50%,
    var(--surface-3) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  .skeleton {
    animation: none;
    background: var(--surface-3);
  }
}


/* ============================================
   PHASE 2 - COMPONENT POLISH
   Shared controls only; page layouts intentionally unchanged.
   ============================================ */

.btn {
  border: 1px solid transparent;
  letter-spacing: 0;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover { text-decoration: none; }

.btn:active { transform: scale(0.95); }

.btn:focus-visible,
.chip:focus-visible,
.star:focus-visible,
.book-card:focus-visible,
.shelf-item:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--gold);
  color: var(--text-inverse);
  border-color: transparent;
  box-shadow: none;
}

.btn-primary:hover {
  background: var(--gold-hover);
  filter: brightness(1.04);
}

.btn-primary:focus-visible {
  box-shadow: 0 0 0 3px var(--gold-12);
}

.btn-secondary {
  background: var(--gold-04);
  color: var(--text-body);
  border-color: var(--gold-12);
}

.btn-secondary:hover {
  background: var(--gold-06);
  border-color: var(--gold-18);
  color: var(--text-primary);
}

.btn-success {
  background: var(--green);
  color: var(--text-inverse);
  border-color: transparent;
  font-weight: var(--weight-semi);
}

.btn-success:hover { filter: brightness(1.1); }

.btn-ghost {
  color: var(--text-dim);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-icon {
  min-width: 40px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon i,
.btn i {
  flex-shrink: 0;
  font-size: 1rem;
  line-height: 1;
}

.btn-sm {
  min-height: 36px;
  padding: var(--space-2) var(--space-3);
}

.btn-icon.btn-sm {
  min-width: 36px;
  min-height: 36px;
}

.badge {
  border: 1px solid transparent;
  min-height: 22px;
}

.badge-genre,
.badge-accent {
  background: var(--gold-06);
  color: var(--gold-strong);
  border-color: var(--gold-10);
}

.badge-reading { border-color: rgba(123,157,201,0.24); }
.badge-finished { border-color: rgba(107,170,117,0.24); }
.badge-wishlist { border-color: var(--gold-12); }
.badge-dnf { border-color: rgba(155,94,94,0.24); }

.chip {
  min-height: 32px;
  background: rgba(255,255,255,0.02);
  border-color: var(--border-soft);
  color: var(--text-body);
  transition:
    background var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.chip:hover {
  background: var(--gold-04);
  border-color: var(--gold-18);
  color: var(--text-primary);
}

.chip.active,
.chip[aria-pressed="true"] {
  background: var(--gold-12);
  border-color: var(--gold);
  color: var(--gold);
}

.chip:active { transform: scale(0.97); }

.book-card,
.stat-card,
.reading-card,
.goal-widget,
.book-preview {
  background: var(--surface-2);
  border-color: var(--border-hairline);
}

.book-card:hover,
.stat-card:hover,
.reading-card:hover,
.goal-widget:hover {
  border-color: var(--gold-18);
  box-shadow: var(--shadow-card);
}

.book-card-actions .btn-ghost.btn-icon,
.reading-card-actions .btn-ghost,
.book-details-actions .btn-ghost.btn-icon {
  background: var(--gold-04);
  border-color: var(--gold-08);
  color: var(--text-body);
}

.book-card-actions .btn-ghost.btn-icon:hover,
.reading-card-actions .btn-ghost:hover,
.book-details-actions .btn-ghost.btn-icon:hover {
  background: var(--gold-10);
  border-color: var(--gold-18);
  color: var(--text-strong);
}

.book-card-actions .ph-fill.ph-heart,
.reading-card-actions .ph-fill.ph-heart,
.book-details-actions .ph-fill.ph-heart {
  color: var(--gold) !important;
}

.progress-bar {
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--r-pill);
}

.progress-fill {
  background: linear-gradient(90deg, var(--gold-strong), var(--gold));
  box-shadow: var(--glow-gold);
}

.progress-fill.complete {
  background: linear-gradient(90deg, var(--green-deep), var(--green));
  box-shadow: var(--glow-green);
}

.progress-pct {
  color: var(--gold);
  font-weight: var(--weight-semi);
}

.empty-state {
  border: 1px dashed var(--gold-12);
  border-radius: var(--radius-lg);
  background: var(--gold-04);
}

.empty-state-icon {
  color: var(--text-faint);
  opacity: 1;
}

.empty-state-title { color: var(--text-dim); }
.empty-state-body { color: var(--text-faint); }

.form-input,
.form-select,
.form-textarea {
  min-height: 44px;
  background-color: var(--surface-3);
  border: 1px solid var(--border-soft);
  color: var(--text-strong);
  caret-color: var(--gold);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--gold-18);
}

.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-dim);
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--surface-3) 25%,
    rgba(255,255,255,0.04) 50%,
    var(--surface-3) 75%
  );
}

@media (max-width: 640px) {
  .btn,
  .btn-sm,
  .btn-icon,
  .btn-icon.btn-sm,
  .chip {
    min-height: 44px;
  }

  .btn-icon,
  .btn-icon.btn-sm {
    min-width: 44px;
    width: 44px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .chip,
  .book-card,
  .stat-card,
  .reading-card,
  .shelf-item .book-cover,
  .progress-fill,
  .star {
    transition-duration: 0.01ms !important;
  }

  .skeleton {
    animation: none;
    background: var(--surface-3);
  }
}

/* ============================================
   PHASE 4 - LIBRARY REDESIGN
   Scoped to the My Library page and existing book-card markup.
   ============================================ */

#libraryPage {
  max-width: 1180px;
}

#libraryPage .library-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-divider);
}

#libraryPage .library-heading {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

#libraryPage .library-eyebrow {
  color: var(--text-muted);
  font-size: var(--t-eyebrow);
  font-weight: var(--weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#libraryPage .page-title {
  font-family: var(--font-serif);
  font-size: var(--t-h1-app);
  color: var(--text-strong);
  letter-spacing: 0;
}

#libraryPage .page-subtitle {
  color: var(--text-body);
}

#libraryPage .library-filters {
  margin-bottom: var(--space-6);
  padding: var(--space-2);
  background: var(--surface-2);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
}

#libraryPage .library-filters .chip {
  min-height: 38px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
}

#libraryPage .library-filters .chip span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.04);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

#libraryPage .library-filters .chip.active span {
  background: var(--gold-18);
  color: var(--gold);
}

#libraryPage .books-grid {
  grid-template-columns: repeat(auto-fill, minmax(184px, 1fr));
  gap: var(--space-5);
  align-items: stretch;
}

#libraryPage .book-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 0;
  padding: var(--space-3);
  background: var(--surface-2);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  box-shadow: none;
  overflow: hidden;
}

#libraryPage .book-card:hover {
  background: var(--surface-3);
  border-color: var(--gold-18);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

#libraryPage .book-card > .book-cover {
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-cover);
}

#libraryPage .book-card-info {
  gap: var(--space-2);
  min-height: 0;
}

#libraryPage .book-card-title {
  color: var(--text-strong);
  font-family: var(--font-serif);
  font-size: var(--t-card);
  font-weight: var(--weight-semi);
  line-height: var(--leading-snug);
}

#libraryPage .book-card-author {
  color: var(--text-body);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#libraryPage .book-card-meta {
  gap: var(--space-2);
  margin-top: var(--space-1);
}

#libraryPage .book-card-meta .star-rating {
  margin-left: 0;
}

#libraryPage .badge {
  min-height: 24px;
}

#libraryPage .badge-reading::before { content: 'now'; font-size: 0.6rem; font-weight: var(--weight-bold); }
#libraryPage .badge-finished::before { content: 'ok'; font-weight: var(--weight-bold); }
#libraryPage .badge-wishlist::before { content: '+'; font-weight: var(--weight-bold); }

#libraryPage .reading-progress {
  margin-top: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--surface-3);
}

#libraryPage .progress-label {
  gap: var(--space-2);
}

#libraryPage .progress-text {
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#libraryPage .progress-pct {
  flex-shrink: 0;
  color: var(--gold);
}

#libraryPage .book-card-actions {
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-divider);
}

#libraryPage .book-card-actions .btn:not(.btn-icon) {
  flex: 1 0 min(100%, 82px);
  min-width: 82px;
  padding-left: var(--space-3);
  padding-right: var(--space-3);
  white-space: nowrap;
}

#libraryPage .book-card-actions .btn-icon {
  flex: 0 0 36px;
  width: 36px;
  min-width: 36px;
}

#libraryPage .book-card-actions .btn-ghost.btn-icon {
  background: var(--gold-04);
  border-color: var(--gold-08);
  color: var(--text-body);
}

#libraryPage .book-card-actions .btn-ghost.btn-icon:hover,
#libraryPage .book-card-actions .btn-ghost.btn-icon:focus-visible {
  background: var(--gold-12);
  border-color: var(--gold-18);
  color: var(--text-strong);
}

#libraryPage .book-card-actions .ph-fill.ph-heart,
#libraryPage .book-card-actions .ph-heart-fill {
  color: var(--gold) !important;
  opacity: 1;
}

#libraryPage .empty-state {
  min-height: 360px;
  padding: var(--space-12) var(--space-6);
  background: linear-gradient(180deg, var(--gold-04), rgba(255,255,255,0.01));
}

#libraryPage .empty-state-icon {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--surface-3);
  border: 1px solid var(--gold-12);
  color: var(--gold);
  font-size: 1.65rem;
}

#libraryPage .empty-state-title {
  font-family: var(--font-serif);
  color: var(--text-strong);
  font-size: var(--t-card);
}

@media (min-width: 1280px) {
  #libraryPage .books-grid {
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  }
}

@media (max-width: 820px) {
  #libraryPage .library-header {
    align-items: flex-start;
    flex-direction: column;
  }

  #libraryPage .library-header .btn {
    width: 100%;
  }

  #libraryPage .books-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  #libraryPage .book-card {
    padding: var(--space-3);
    border-radius: var(--radius-md);
  }

  #libraryPage .book-card-actions .btn:not(.btn-icon) {
    flex: 1 0 100%;
    min-width: 100%;
  }

  #libraryPage .book-card-actions .btn-icon {
    flex-basis: 44px;
    width: 44px;
    min-width: 44px;
  }
}

@media (max-width: 430px) {
  #libraryPage .books-grid {
    grid-template-columns: 1fr;
  }

  #libraryPage .book-card {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    gap: var(--space-4);
  }

  #libraryPage .book-card > .book-cover {
    width: 96px;
    height: 144px;
  }

  #libraryPage .book-card-actions {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  #libraryPage .book-card,
  #libraryPage .book-card > .book-cover {
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   PHASE 6 - STATISTICS REDESIGN
   Scoped to the Statistics page only.
   ============================================ */

#statsPage {
  max-width: 1180px;
}

#statsPage .stats-header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-divider);
}

#statsPage .stats-heading {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

#statsPage .library-eyebrow {
  color: var(--text-muted);
  font-size: var(--t-eyebrow);
  font-weight: var(--weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#statsPage .page-title {
  font-family: var(--font-serif);
  font-size: var(--t-h1-app);
  color: var(--text-strong);
  letter-spacing: 0;
}

#statsPage .page-subtitle {
  color: var(--text-body);
}

#statsPage .stats-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

#statsPage .stat-card {
  min-height: 144px;
  padding: var(--space-5);
  background: var(--surface-2);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  box-shadow: none;
}

#statsPage .stat-card:hover {
  border-color: var(--gold-18);
  box-shadow: var(--shadow-card);
}

#statsPage .stat-card-icon {
  background: var(--surface-3);
  border: 1px solid var(--border-soft);
}

#statsPage .stat-card-value {
  font-family: var(--font-serif);
  font-size: var(--t-stat);
  color: var(--text-strong);
}

#statsPage .stat-card-label {
  color: var(--text-dim);
}

#statsPage .stat-card-footnote {
  margin-top: auto;
  color: var(--text-faint);
  font-size: var(--text-xs);
  line-height: var(--leading-snug);
}

#statsPage .dashboard-grid {
  grid-template-columns: minmax(0, 1fr) 360px;
}

#statsPage .goal-widget {
  padding: var(--space-5);
  background: var(--surface-2);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
}

#statsPage .goal-widget:hover {
  border-color: var(--gold-18);
  box-shadow: var(--shadow-card);
}

#statsPage .goal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

#statsPage .goal-header::before {
  content: '';
  width: 3px;
  align-self: stretch;
  min-height: 28px;
  border-radius: var(--radius-full);
  background: var(--gold);
  opacity: 0.65;
}

#statsPage .goal-header > :first-child {
  flex: 1;
}

#statsPage .goal-title {
  font-family: var(--font-serif);
  color: var(--text-strong);
  font-size: var(--t-card);
}

#statsPage .stats-section-meta {
  align-self: center;
  color: var(--text-dim);
  font-size: var(--text-xs);
  white-space: nowrap;
}

#statsPage .stats-chart-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

#statsPage .stats-chart-card,
#statsPage .stats-genre-card {
  min-width: 0;
}

#statsPage .monthly-chart {
  height: 148px;
  padding: var(--space-4) 0 var(--space-3);
}

#statsPage .monthly-chart-pages {
  height: 156px;
}

#statsPage .chart-bar {
  width: min(100%, 20px);
}

#statsPage .genre-list,
#statsPage .activity-list {
  gap: var(--space-2);
}

#statsPage .stats-side-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

#statsPage .genre-row,
#statsPage .activity-item {
  padding: var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: var(--surface-3);
}

#statsPage .genre-row:hover,
#statsPage .activity-item:hover {
  background: var(--gold-04);
  border-color: var(--gold-12);
}

#statsPage .genre-name,
#statsPage .activity-title {
  color: var(--text-body);
}

#statsPage .genre-count,
#statsPage .activity-subtitle,
#statsPage .activity-time {
  color: var(--text-dim);
}

#statsPage .monthly-chart {
  border-bottom-color: var(--border-divider);
}

#statsPage .rated-book-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

#statsPage .rated-book-row {
  display: grid;
  grid-template-columns: auto 52px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-3);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--surface-3);
}

#statsPage .rated-book-row:hover {
  background: var(--gold-04);
  border-color: var(--gold-12);
}

#statsPage .rated-book-rank {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--gold-12);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
}

#statsPage .rated-book-info {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#statsPage .rated-book-title {
  color: var(--text-strong);
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  line-height: var(--leading-snug);
}

#statsPage .rated-book-author {
  color: var(--text-dim);
  font-size: var(--text-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#statsPage .rated-book-rating {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--gold);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
}

#statsPage .rated-book-rating .star-rating {
  gap: 1px;
}

#statsPage .rated-book-rating .star {
  font-size: 0.82rem;
}

#statsPage .stats-empty-state {
  min-height: 220px;
  padding: var(--space-8);
  background: var(--surface-3);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
}

#statsPage .chart-bar-pages {
  background: linear-gradient(180deg, var(--gold), var(--gold-strong));
}

#statsPage .goal-widget .empty-state {
  min-height: 220px;
  padding: var(--space-8);
}

@media (max-width: 1100px) {
  #statsPage .dashboard-grid {
    grid-template-columns: 1fr;
  }

  #statsPage .stats-chart-grid {
    grid-template-columns: 1fr;
  }

  #statsPage .stats-side-stack {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }
}

@media (max-width: 820px) {
  #statsPage .stats-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  #statsPage .stats-side-stack {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 430px) {
  #statsPage .stats-row {
    grid-template-columns: 1fr;
  }

  #statsPage .stats-side-stack {
    gap: var(--space-4);
  }

  #statsPage .stats-chart-grid {
    gap: var(--space-3);
    margin-bottom: var(--space-4);
  }

  #statsPage .stats-section-meta {
    white-space: normal;
  }

  #statsPage .rated-book-row {
    grid-template-columns: 24px 44px minmax(0, 1fr);
    gap: var(--space-2);
    padding: var(--space-2);
  }

  #statsPage .rated-book-rank {
    width: 24px;
    height: 24px;
  }

  #statsPage .rated-book-rating {
    flex-wrap: wrap;
  }

  #statsPage .monthly-chart {
    overflow-x: auto;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  #statsPage .stat-card,
  #statsPage .goal-widget,
  #statsPage .genre-row,
  #statsPage .activity-item,
  #statsPage .chart-bar {
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   PHASE 7 - PAGE GRID AND CONTROL POLISH
   Tighten responsive behavior without changing layout logic.
   ============================================ */

.page,
.books-grid,
.dashboard-grid,
.stats-row {
  min-width: 0;
}

@media (max-width: 768px) {
  .books-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-card,
  .goal-widget,
  .book-card,
  .reading-card {
    min-width: 0;
  }
}

@media (max-width: 430px) {
  .books-grid {
    grid-template-columns: 1fr;
  }

  .btn,
  .btn-sm,
  .btn-icon,
  .btn-icon.btn-sm,
  .chip {
    min-height: 44px;
  }
}