/* ================================================
   TBR Admin Dashboard Styles
   ================================================ */

/* ================================================
   Admin Page Structure
   ================================================ */
.admin-page {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  margin-top: var(--space-xl);
}

.admin-page-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.admin-page-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-sm);
}

.admin-page-subtitle {
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
}

/* ================================================
   Stats Cards
   ================================================ */
.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-fast);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
}

.stat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.stat-icon-new {
  background: var(--color-success);
}

.stat-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.stat-value {
  font-family: var(--font-sans);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1;
}

.stat-label {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ================================================
   Status Breakdown
   ================================================ */
.status-breakdown {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
}

.status-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: box-shadow var(--transition-fast);
}

.status-item:hover {
  box-shadow: var(--shadow-md);
}

.status-item.status-tbr {
  border-left: 3px solid var(--color-text-muted);
}

.status-item.status-reading {
  border-left: 3px solid #f59e0b;
}

.status-item.status-read {
  border-left: 3px solid var(--color-success);
}

.status-count {
  font-family: var(--font-sans);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text);
}

.status-name {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ================================================
   Admin Sections
   ================================================ */
.admin-section {
  margin-top: var(--space-2xl);
}

.admin-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.admin-section-title {
  font-size: var(--font-size-xl);
  margin: 0;
}

.admin-search {
  min-width: 250px;
}

.admin-search .search-input {
  background: white;
  border: 1px solid var(--color-border);
  padding: var(--space-sm) var(--space-md);
  padding-left: 40px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  width: 100%;
}

.admin-search .search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 85, 104, 0.1);
}

.admin-search .search-input-wrap {
  position: relative;
}

.admin-search .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* ================================================
   Admin Table
   ================================================ */
.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
}

.admin-table th,
.admin-table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.admin-table th {
  background: var(--color-bg);
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  white-space: nowrap;
}

.admin-table tbody tr {
  background: white;
}

.admin-table tbody tr:hover {
  background: var(--color-surface);
}

.admin-table tbody tr:last-child td {
  border-bottom: none;
}

.sort-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
  padding: 0;
}

.sort-btn:hover {
  color: var(--color-text);
}

.sort-icon {
  opacity: 0.4;
}

.sort-btn.active .sort-icon {
  opacity: 1;
}

.table-loading {
  text-align: center;
  padding: var(--space-2xl) !important;
  color: var(--color-text-muted);
}

.table-loading .spinner {
  display: inline-block;
  margin-right: var(--space-sm);
}

/* User row styles */
.user-email {
  font-weight: 500;
  color: var(--color-text);
}

.user-joined,
.user-last-active {
  color: var(--color-text-muted);
  white-space: nowrap;
}

.user-books {
  font-weight: 600;
}

.user-status-breakdown {
  display: flex;
  gap: var(--space-sm);
}

.mini-badge {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px 6px;
  font-size: 0.6875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.mini-badge.tbr {
  color: var(--color-text-muted);
}

.mini-badge.reading {
  color: #b45309;
  background: #fffbeb;
  border-color: #fcd34d;
}

.mini-badge.read {
  color: var(--color-success);
  background: #f0fdf4;
  border-color: #86efac;
}

.view-btn {
  padding: var(--space-xs) var(--space-md);
}

/* ================================================
   Admin Empty State
   ================================================ */
.admin-empty {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-muted);
  font-family: var(--font-sans);
}

.admin-empty-sm {
  padding: var(--space-lg);
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-style: italic;
}

.loading-state-sm {
  padding: var(--space-lg);
  text-align: center;
}

/* ================================================
   User Detail Page
   ================================================ */
.admin-user-header {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}

.admin-user-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  flex-shrink: 0;
}

.admin-user-info-main {
  flex: 1;
  min-width: 200px;
}

.admin-user-email-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-sm);
  word-break: break-all;
}

.admin-user-meta {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.meta-divider {
  margin: 0 var(--space-sm);
  opacity: 0.5;
}

.admin-user-stats-mini {
  display: flex;
  gap: var(--space-lg);
}

.stat-mini {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.stat-mini-value {
  font-family: var(--font-sans);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text);
}

.stat-mini-label {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* User Tabs */
.admin-user-tabs {
  margin-bottom: var(--space-xl);
}

/* ================================================
   Admin Books List
   ================================================ */
.admin-books-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.admin-book-card {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.admin-book-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.admin-book-cover {
  width: 60px;
  flex-shrink: 0;
}

.admin-book-cover img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.admin-book-cover-placeholder {
  width: 100%;
  aspect-ratio: 2/3;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.admin-book-info {
  flex: 1;
  min-width: 0;
}

.admin-book-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  font-style: italic;
  margin-bottom: var(--space-xs);
}

.admin-book-author {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.admin-book-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
}

.status-badge.tbr {
  background: var(--color-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.status-badge.reading {
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fcd34d;
}

.status-badge.read {
  background: #f0fdf4;
  color: var(--color-success);
  border: 1px solid #86efac;
}

.admin-book-date {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ================================================
   Sessions List
   ================================================ */
.sessions-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.admin-session-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-md);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition-fast);
}

.admin-session-card:hover {
  box-shadow: var(--shadow-sm);
}

.admin-session-book {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  min-width: 0;
}

.admin-session-cover {
  width: 30px;
  flex-shrink: 0;
}

.admin-session-cover img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  border-radius: 2px;
}

.admin-session-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--font-size-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-session-dates {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

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

.session-in-progress {
  color: #d97706;
  font-style: italic;
}

/* ================================================
   Reviews List
   ================================================ */
.reviews-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.admin-review-card {
  padding: var(--space-lg);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-fast);
}

.admin-review-card:hover {
  box-shadow: var(--shadow-sm);
}

.admin-review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.admin-review-book {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.admin-review-cover {
  width: 30px;
  flex-shrink: 0;
}

.admin-review-cover img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  border-radius: 2px;
}

.admin-review-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--font-size-base);
}

.admin-review-rating {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-success);
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: var(--radius-sm);
}

.admin-review-text {
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  line-height: var(--line-relaxed);
  color: var(--color-text);
  white-space: pre-wrap;
}

.admin-review-no-text {
  font-style: italic;
  color: var(--color-text-muted);
}

/* ================================================
   Responsive Adjustments
   ================================================ */
@media (max-width: 768px) {
  .admin-user-header {
    flex-direction: column;
    text-align: center;
  }

  .admin-user-info-main {
    text-align: center;
  }

  .admin-section-header {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-search {
    min-width: 100%;
  }
}

@media (max-width: 480px) {
  .admin-page {
    padding: var(--space-md);
  }

  .stat-card {
    flex-direction: column;
    text-align: center;
  }

  .admin-table th,
  .admin-table td {
    padding: var(--space-sm);
  }

  .user-status-breakdown {
    flex-wrap: wrap;
  }
}