/* ==========================================================================
   Stack Cards - Fanned magazine pile visual for library grid
   ========================================================================== */

/* Wrapper for stack card — positions the "stacked paper" layers and the card */
.stack-card-wrap {
  position: relative;
  /* Extra space on right/bottom so pseudo-element layers don't overlap neighbours */
  padding-right: 10px;
  padding-bottom: 10px;
}

/* Decorative "stacked paper" layers via pseudo-elements — no extra DOM nodes needed */
.stack-card-wrap::before,
.stack-card-wrap::after {
  content: '';
  position: absolute;
  /* Match the card's footprint (inside the wrap's padding) */
  inset: 0 10px 10px 0;
  border-radius: var(--radius-lg);
  background: var(
    --surface-variant,
    color-mix(in srgb, var(--surface) 85%, var(--primary-color) 15%)
  );
  border: 1px solid rgba(var(--primary-rgb), 0.55);
  transition: border-color var(--transition-fast);
  pointer-events: none;
}

.stack-card-wrap::before {
  transform: translate(5px, 5px);
  z-index: 1;
}

.stack-card-wrap::after {
  transform: translate(10px, 10px);
  z-index: 0;
}

/* On hover, recolour layers to full primary accent */
.stack-card-wrap:hover::before,
.stack-card-wrap:hover::after {
  border-color: var(--primary-color);
}

/* Stack card modifier — inherits .periodical-card base styles */
.stack-card {
  position: relative;
  z-index: 2;
  border-color: var(--border-color);
  transition: border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
}

/* Highlight the card border on wrapper hover */
.stack-card-wrap:hover .stack-card {
  border-color: var(--primary-color);
}

/* Fanned cover needs relative positioning for layers */
.stack-cover {
  position: relative;
}

/* Individual cover layers in the fan */
.stack-cover-layer {
  position: absolute;
  width: 85%;
  height: 85%;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.stack-cover-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Deepest layer (3rd item) — most rotated and offset */
.stack-cover-layer.layer-back {
  top: 2px;
  left: 2px;
  transform: rotate(-6deg);
  z-index: 1;
}

/* Middle layer (2nd item) — slightly rotated */
.stack-cover-layer.layer-middle {
  top: 8px;
  left: 10px;
  transform: rotate(-2deg);
  z-index: 2;
}

/* Front layer (1st/top item) — centered, slight rotation */
.stack-cover-layer.layer-front {
  top: 14px;
  left: 18px;
  transform: rotate(1deg);
  z-index: 3;
}

/* Single cover fallback - centered like regular card */
.stack-cover-layer.layer-single {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: none;
  border-radius: 0;
}

/* Fan out on hover — covers escape the card boundary for 3D depth */
.periodical-card.stack-card:hover .stack-cover-layer.layer-back {
  transform: rotate(-12deg) translate(-16px, -8px);
  box-shadow: var(--shadow-lg);
}

.periodical-card.stack-card:hover .stack-cover-layer.layer-middle {
  transform: rotate(-4deg) translate(-6px, -3px);
  box-shadow: var(--shadow-lg);
}

.periodical-card.stack-card:hover .stack-cover-layer.layer-front {
  transform: rotate(3deg) translate(6px, -4px);
  box-shadow: var(--shadow-xl);
}

/* Placeholder for covers without images */
.stack-cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 32px;
  font-weight: 600;
}

/* Count badge overlay */
.stack-count-overlay {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.75);
  color: white;
  padding: 4px 10px;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 600;
  z-index: 10;
  backdrop-filter: blur(4px);
}

/* Stack info section (below covers) */
.stack-info {
  padding: 16px;
}

.stack-info h4 {
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.stack-info p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 4px;
}

.stack-badge {
  display: inline-block;
  padding: 3px 10px;
  margin-top: 4px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(var(--primary-rgb), 0.15);
  color: var(--primary-color);
  border-radius: var(--radius-md);
  letter-spacing: 0.3px;
}

/* ==========================================================================
   Stack Group Headers - Collapsible groups for tracking view
   ========================================================================== */

.stack-group {
  margin-bottom: 8px;
}

.stack-group-header {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  margin-bottom: 24px;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  user-select: none;
}

/* Stacked paper effect — two offset layers behind the header */
.stack-group-header::before,
.stack-group-header::after {
  content: '';
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: -5px;
  height: 6px;
  background: var(--surface);
  border: 2px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 10px 10px;
  z-index: -1;
}

.stack-group-header::after {
  left: 8px;
  right: 8px;
  bottom: -9px;
  border-radius: 0 0 8px 8px;
  opacity: 0.7;
}

.stack-group-header:hover {
  border-color: var(--primary-color);
  background: var(--surface-hover, var(--surface));
  box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.15);
}

.stack-group-header:hover::before,
.stack-group-header:hover::after {
  border-color: var(--primary-color);
}

.stack-toggle-btn {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.stack-toggle-icon {
  font-size: 18px;
  font-weight: 700;
  color: white;
  line-height: 1;
  transition: transform 0.2s ease;
}

.stack-group-header.expanded .stack-toggle-icon {
  transform: none;
}

.stack-toggle-btn:hover {
  background: var(--primary-hover, #4338ca);
  transform: scale(1.1);
}

.stack-group-title-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 0;
  min-width: 0;
}

.stack-group-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  flex-shrink: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stack-group-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.stack-group-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.stack-group-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.stack-stat-failed {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
  font-weight: 500;
}

.stack-group-desc {
  font-size: 14px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 400;
  opacity: 0.8;
  margin-left: 8px;
}

/* Legacy styles kept for backward compatibility */
.stack-group-count {
  background: rgba(var(--primary-rgb), 0.15);
  color: var(--primary-color);
  padding: 3px 10px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  white-space: nowrap;
}

.stack-group-issues {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success-color, #10b981);
}

.stack-group-failed {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger-color, #ef4444);
}

.stack-group-search-btn {
  background: var(--surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px;
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.stack-group-search-btn:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--on-primary);
  transform: scale(1.1);
}

.stack-group-items {
  padding-left: 20px;
  margin-top: 8px;
  display: none;
}

.stack-group-header.expanded + .stack-group-items {
  display: block;
}

.stack-group-header.expanded {
  border-color: var(--primary-color);
}

.stack-group-header.expanded::before,
.stack-group-header.expanded::after {
  border-color: var(--primary-color);
}

.stack-group-header.expanded + .stack-group-items .tracked-card {
  border-color: var(--primary-color);
}

/* ==========================================================================
   Stack Categories Picker - Toggle pill buttons for category selection
   ========================================================================== */

.stack-categories-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-category-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
  user-select: none;
}

.stack-category-pill:hover {
  border-color: var(--primary-color);
  color: var(--text-primary);
}

.stack-category-pill.selected {
  background: rgba(var(--primary-rgb), 0.15);
  border-color: var(--primary-color);
  color: var(--primary-color);
  font-weight: 600;
}

/* Category badges displayed on stack header */
.stack-category-badges {
  display: inline-flex;
  gap: 6px;
  margin-left: 10px;
}

.stack-category-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-md);
  font-size: 11px;
  font-weight: 600;
  background: rgba(var(--primary-rgb), 0.15);
  color: var(--primary-color);
  white-space: nowrap;
}

/* ==========================================================================
   Stack Detail Page - Matches periodical page structure with distinct identity
   ========================================================================== */

.stack-page-header {
  background: var(--surface-variant);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary-color);
  color: var(--text-primary);
  padding: 20px 24px;
  margin-bottom: 20px;
  text-align: center;
  border-radius: var(--radius-xl);
}

.stack-page-header h1 {
  margin: 0;
  font-size: 1.6em;
  font-weight: bold;
  color: var(--text-primary);
}

.stack-page-subtitle {
  margin: 4px 0 0;
  font-size: 0.95em;
  color: var(--text-secondary);
}

.stack-page-subtitle:empty {
  display: none;
}

.stack-sort-subtitle {
  margin-top: 4px;
  font-size: 0.9em;
  color: var(--text-disabled);
}

.stack-page-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.stack-page-count {
  background: rgba(var(--primary-rgb), 0.15);
  color: var(--primary-color);
  padding: 4px 14px;
  border-radius: var(--radius-xl);
  font-size: 13px;
  font-weight: 600;
}

.stack-page-search-btn {
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  background: rgba(var(--primary-rgb), 0.15);
  color: var(--primary-color);
  border: 1px solid rgba(var(--primary-rgb), 0.3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.stack-page-search-btn:hover {
  background: rgba(var(--primary-rgb), 0.25);
  transform: translateY(-1px);
}

.stack-page-search-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Stack detail cards — whole card clickable, titles wrap, compact info */
.stack-detail-card {
  cursor: pointer;
  position: relative;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.stack-detail-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stack-detail-card:hover .stack-detail-nav-hint {
  opacity: 0.8;
}

.stack-detail-nav-hint {
  text-align: right;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.4;
  margin-top: 6px;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.stack-detail-card .periodical-info {
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.stack-detail-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden !important;
  text-overflow: unset !important;
  white-space: normal !important;
  line-height: 1.35;
  min-height: calc(1.35em * 2);
  margin-bottom: 6px !important;
}

.stack-detail-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.stack-detail-category-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 600;
  background: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
  border-radius: var(--radius-md);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.stack-detail-badges .language-badge {
  margin: 0;
  padding: 2px 8px;
  font-size: 10px;
}

.stack-detail-subtitle {
  color: var(--text-secondary);
  font-size: 12px;
  margin: 0 0 8px !important;
  line-height: 1.4;
}

/* ==========================================================================
   Stack Search Panel - Search all tracked members
   ========================================================================== */

.stack-search-panel {
  background: var(--surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 24px;
}

.stack-search-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.stack-search-panel-header h3 {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

.stack-search-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 22px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.stack-search-close:hover {
  color: var(--text-primary);
}

.stack-search-progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stack-search-row {
  display: grid;
  grid-template-columns: 28px 1fr auto auto;
  gap: 10px;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-variant, rgba(255, 255, 255, 0.03));
  font-size: 13px;
  transition: background-color 0.2s ease;
}

.stack-search-row.searching {
  background: rgba(var(--primary-rgb), 0.08);
}

.stack-search-row.has-results {
  background: rgba(34, 197, 94, 0.05);
}

.stack-search-row.error {
  background: rgba(239, 68, 68, 0.08);
}

.stack-search-row-status {
  font-size: 16px;
  text-align: center;
}

.stack-search-row-title {
  color: var(--text-primary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stack-search-row-result {
  color: var(--text-secondary);
  font-size: 12px;
  white-space: nowrap;
}

.stack-search-row.has-results .stack-search-row-result {
  color: var(--text-secondary);
}

.stack-search-summary {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.stack-search-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: var(--text-secondary);
}

.stack-search-stats .stat-available {
  color: var(--text-secondary);
}

.stack-search-stats .stat-error {
  color: var(--error-color);
}

/* Per-row download button */
.stack-search-dl-btn {
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  background: rgba(var(--primary-rgb), 0.12);
  color: var(--primary-color);
  border: 1px solid rgba(var(--primary-rgb), 0.25);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    transform 0.15s ease;
}

.stack-search-dl-btn:hover {
  background: rgba(var(--primary-rgb), 0.22);
  transform: translateY(-1px);
}

.stack-search-dl-btn:disabled {
  opacity: 0.7;
  cursor: default;
  transform: none;
}

.stack-search-dl-btn.dl-done {
  background: rgba(var(--primary-rgb), 0.07);
  border-color: transparent;
  color: var(--text-secondary);
  cursor: default;
}

.stack-search-dl-btn.dl-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: transparent;
  color: #f59e0b;
  cursor: default;
}

/* Download All bar in summary */
.stack-search-actions-bar {
  margin-top: 12px;
  display: flex;
  justify-content: center;
}

.stack-search-dl-all-btn {
  padding: 8px 24px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  background: var(--primary-color);
  color: var(--on-primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
  box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.25);
}

.stack-search-dl-all-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.35);
}

.stack-search-dl-all-btn:disabled {
  opacity: 0.7;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.stack-search-dl-all-btn.dl-done {
  background: rgba(var(--primary-rgb), 0.35);
  box-shadow: none;
  cursor: default;
}

.stack-search-dl-all-btn.dl-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  box-shadow: none;
  cursor: default;
}

/* ==========================================================================
   Stacks Management Tab
   ========================================================================== */

.stacks-management-container {
  padding: 0;
}

.stacks-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.stack-management-card {
  background: var(--surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 12px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.stack-management-card:hover {
  border-color: var(--primary-color);
  box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.1);
}

.stack-management-info h4 {
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 4px;
}

.stack-management-info p {
  color: var(--text-secondary);
  font-size: 13px;
  margin: 0;
}

.stack-management-meta {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.stack-management-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* Stack assignment modal */
.stack-assignment-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.stack-assignment-column h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.stack-assignment-column .stack-assignment-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.stack-assignment-column .stack-assignment-item span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.stack-assignment-column .stack-assignment-item button {
  flex-shrink: 0;
}

.stack-assignment-panel {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  min-height: 300px;
}

.stack-assignment-list {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow-y: auto;
  max-height: 400px;
  padding: 8px;
}

.stack-assignment-list h5 {
  padding: 8px;
  margin: 0;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 8px;
}

.stack-assignment-item {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
  transition: background-color var(--transition-fast);
}

.stack-assignment-item:hover {
  background: rgba(var(--primary-rgb), 0.1);
}

.stack-assignment-item.selected {
  background: rgba(var(--primary-rgb), 0.2);
  font-weight: 500;
}

.stack-assignment-arrows {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.stack-assignment-arrows button {
  padding: 8px 16px;
  font-size: 16px;
}

/* ==========================================================================
   Responsive - Stack Cards
   ========================================================================== */

@media (max-width: 600px) {
  /* Simplify fanned effect on mobile */
  .stack-cover-layer.layer-back {
    display: none;
  }

  .stack-cover-layer.layer-middle {
    top: 4px;
    left: 4px;
    transform: rotate(-3deg);
  }

  .stack-cover-layer.layer-front {
    top: 10px;
    left: 10px;
    transform: rotate(1deg);
  }

  /* Stacks tab header — stack title & button vertically */
  .stacks-header-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .stacks-header-row .btn-primary {
    width: 100%;
  }

  /* Management cards — stack info above actions */
  .stack-management-card {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }

  .stack-management-actions {
    justify-content: flex-start;
    gap: 12px;
  }

  .stack-management-actions .btn-icon {
    padding: 8px 12px;
    font-size: 18px;
  }

  .stack-group-header {
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 12px;
  }

  .stack-group-header .stack-toggle-btn {
    position: absolute;
    top: 16px;
    right: 16px;
  }

  .stack-group-info {
    flex-basis: 100%;
    padding-right: 44px;
  }

  .stack-group-header .tracked-card-buttons {
    width: 100%;
  }

  .stack-group-desc {
    display: none;
  }

  .stack-group-count {
    margin-left: 22px;
    height: 36px;
    font-size: 12px;
    padding: 2px 8px;
  }

  .stack-group-items {
    padding-left: 12px;
  }

  .stack-assignment-panel {
    grid-template-columns: 1fr;
  }

  .stack-assignment-arrows {
    flex-direction: row;
    justify-content: center;
  }

  /* Stack detail page header */
  .stack-page-header {
    padding: 16px 14px;
  }

  .stack-page-header h1 {
    font-size: 1.3em;
    justify-content: center !important;
  }

  .stack-page-header .header-title-area {
    text-align: center !important;
  }

  .stack-page-header .stack-page-meta {
    justify-content: center !important;
  }

  .stack-sort-subtitle {
    color: rgba(255, 255, 255, 0.6);
  }

  .stack-page-header .sort-controls {
    justify-content: center !important;
  }

  .stack-detail-nav-hint {
    opacity: 0.6;
  }
}