/* ============================================
   BookPlatform - Admin Panel Styles
   Dark Theme Admin Dashboard
   ============================================ */

/* --- Admin Layout --- */
.admin-layout {
  display: flex;
  min-height: 100vh;
  background-color: #0a0a0f;
  color: #e0e0e0;
  font-family: 'Inter', 'Segoe UI', sans-serif;
}

/* --- Sidebar Navigation --- */
.admin-sidebar {
  width: 260px;
  min-height: 100vh;
  background-color: #12121a;
  border-right: 1px solid #2a2a3a;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  overflow-y: auto;
  transition: transform 0.3s ease;
}

.admin-sidebar-logo {
  padding: 24px 20px;
  border-bottom: 1px solid #2a2a3a;
  font-size: 1.25rem;
  font-weight: 700;
  color: #6c5ce7;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-sidebar-logo span {
  background: linear-gradient(135deg, #6c5ce7, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.admin-sidebar-nav {
  padding: 16px 0;
  flex: 1;
}

.admin-sidebar-section {
  padding: 8px 20px 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: #555;
  margin-top: 8px;
}

.admin-sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 20px;
  color: #888;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
  cursor: pointer;
}

.admin-sidebar-link:hover {
  color: #e0e0e0;
  background-color: rgba(108, 92, 231, 0.08);
  border-left-color: rgba(108, 92, 231, 0.3);
}

.admin-sidebar-link.active {
  color: #fff;
  background-color: rgba(108, 92, 231, 0.12);
  border-left-color: #6c5ce7;
}

.admin-sidebar-link.active .sidebar-icon {
  color: #6c5ce7;
}

.admin-sidebar-link .sidebar-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.admin-sidebar-link:hover .sidebar-icon {
  opacity: 1;
}

.admin-sidebar-link .sidebar-badge {
  margin-left: auto;
  background: #6c5ce7;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

.admin-sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid #2a2a3a;
  font-size: 0.8rem;
  color: #555;
}

/* --- Admin Content Area --- */
.admin-content {
  flex: 1;
  margin-left: 260px;
  padding: 32px 40px;
  min-height: 100vh;
  background-color: #0a0a0f;
  overflow-x: hidden;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid #2a2a3a;
}

.admin-header-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
}

.admin-header-subtitle {
  font-size: 0.9rem;
  color: #888;
  margin-top: 4px;
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-header-btn {
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid #2a2a3a;
  background: #1a1a2e;
  color: #e0e0e0;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.admin-header-btn:hover {
  border-color: #6c5ce7;
  background: rgba(108, 92, 231, 0.1);
}

.admin-header-btn--primary {
  background: linear-gradient(135deg, #6c5ce7, #a855f7);
  border-color: transparent;
  color: #fff;
}

.admin-header-btn--primary:hover {
  opacity: 0.9;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
}

/* --- Stats Dashboard --- */
.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.admin-stat-card {
  background: #12121a;
  border: 1px solid #2a2a3a;
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.admin-stat-card:hover {
  border-color: #6c5ce7;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.1);
}

.admin-stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #888;
  margin-bottom: 8px;
}

.admin-stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.admin-stat-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
}

.admin-stat-change--up {
  color: #00c9a7;
  background: rgba(0, 201, 167, 0.1);
}

.admin-stat-change--down {
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.1);
}

.admin-stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.2rem;
}

.admin-stat-icon--purple {
  background: rgba(108, 92, 231, 0.15);
  color: #6c5ce7;
}

.admin-stat-icon--pink {
  background: rgba(168, 85, 247, 0.15);
  color: #a855f7;
}

.admin-stat-icon--green {
  background: rgba(0, 201, 167, 0.15);
  color: #00c9a7;
}

.admin-stat-icon--blue {
  background: rgba(0, 163, 255, 0.15);
  color: #00a3ff;
}

/* --- Charts Placeholder --- */
.admin-chart {
  background: #12121a;
  border: 1px solid #2a2a3a;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  min-height: 300px;
  display: flex;
  flex-direction: column;
}

.admin-chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.admin-chart-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

.admin-chart-filters {
  display: flex;
  gap: 8px;
}

.admin-chart-filter {
  padding: 5px 14px;
  border-radius: 6px;
  border: 1px solid #2a2a3a;
  background: transparent;
  color: #888;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.admin-chart-filter:hover,
.admin-chart-filter.active {
  border-color: #6c5ce7;
  color: #6c5ce7;
  background: rgba(108, 92, 231, 0.08);
}

.admin-chart-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed #2a2a3a;
  border-radius: 8px;
  color: #555;
  font-size: 0.9rem;
  min-height: 200px;
}

.admin-charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

/* --- Admin Table Wrapper --- */
.admin-table-wrapper {
  background: #12121a;
  border: 1px solid #2a2a3a;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 24px;
}

.admin-table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #2a2a3a;
}

.admin-table-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

.admin-table-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #0a0a0f;
  border: 1px solid #2a2a3a;
  border-radius: 8px;
  padding: 8px 14px;
  width: 260px;
  transition: border-color 0.2s ease;
}

.admin-table-search:focus-within {
  border-color: #6c5ce7;
}

.admin-table-search input {
  background: transparent;
  border: none;
  outline: none;
  color: #e0e0e0;
  font-size: 0.85rem;
  width: 100%;
}

.admin-table-search input::placeholder {
  color: #555;
}

/* --- Tables (User, Book, AI Logs) --- */
.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table thead {
  background: #0a0a0f;
}

.admin-table th {
  padding: 12px 24px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #888;
  border-bottom: 1px solid #2a2a3a;
  white-space: nowrap;
}

.admin-table td {
  padding: 14px 24px;
  font-size: 0.88rem;
  color: #e0e0e0;
  border-bottom: 1px solid rgba(42, 42, 58, 0.5);
  vertical-align: middle;
}

.admin-table tbody tr {
  transition: background-color 0.15s ease;
}

.admin-table tbody tr:hover {
  background-color: rgba(108, 92, 231, 0.04);
}

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

/* User management specific */
.admin-table .user-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-table .user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6c5ce7, #a855f7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
}

.admin-table .user-info-name {
  font-weight: 600;
  color: #fff;
}

.admin-table .user-info-email {
  font-size: 0.8rem;
  color: #888;
  margin-top: 2px;
}

/* Status badges */
.admin-table .status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.admin-table .status-badge--active {
  background: rgba(0, 201, 167, 0.12);
  color: #00c9a7;
}

.admin-table .status-badge--inactive {
  background: rgba(255, 107, 107, 0.12);
  color: #ff6b6b;
}

.admin-table .status-badge--pending {
  background: rgba(255, 193, 7, 0.12);
  color: #ffc107;
}

.admin-table .status-badge--published {
  background: rgba(0, 201, 167, 0.12);
  color: #00c9a7;
}

.admin-table .status-badge--draft {
  background: rgba(136, 136, 136, 0.12);
  color: #888;
}

.admin-table .status-badge--processing {
  background: rgba(108, 92, 231, 0.12);
  color: #6c5ce7;
}

.admin-table .status-badge--error {
  background: rgba(255, 107, 107, 0.12);
  color: #ff6b6b;
}

.admin-table .status-badge--success {
  background: rgba(0, 201, 167, 0.12);
  color: #00c9a7;
}

/* Table row actions */
.admin-table .row-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.admin-table .row-action-btn {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid #2a2a3a;
  background: transparent;
  color: #888;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.admin-table .row-action-btn:hover {
  border-color: #6c5ce7;
  color: #6c5ce7;
  background: rgba(108, 92, 231, 0.08);
}

.admin-table .row-action-btn--danger:hover {
  border-color: #ff6b6b;
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.08);
}

/* AI Logs table specific */
.admin-table .log-model {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: #a855f7;
  background: rgba(168, 85, 247, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
}

.admin-table .log-tokens {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  color: #e0e0e0;
}

.admin-table .log-cost {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  color: #00c9a7;
}

.admin-table .log-timestamp {
  font-size: 0.8rem;
  color: #888;
  white-space: nowrap;
}

/* Table pagination */
.admin-table-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid #2a2a3a;
}

.admin-table-info {
  font-size: 0.82rem;
  color: #888;
}

/* --- Settings Form --- */
.admin-settings-form {
  background: #12121a;
  border: 1px solid #2a2a3a;
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 24px;
}

.admin-settings-section {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid #2a2a3a;
}

.admin-settings-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.admin-settings-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}

.admin-settings-section-desc {
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 24px;
}

.admin-form-group {
  margin-bottom: 20px;
}

.admin-form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: #e0e0e0;
  margin-bottom: 8px;
}

.admin-form-hint {
  font-size: 0.78rem;
  color: #555;
  margin-top: 6px;
}

.admin-form-input {
  width: 100%;
  max-width: 480px;
  padding: 10px 14px;
  background: #0a0a0f;
  border: 1px solid #2a2a3a;
  border-radius: 8px;
  color: #e0e0e0;
  font-size: 0.9rem;
  transition: border-color 0.2s ease;
  box-sizing: border-box;
}

.admin-form-input:focus {
  outline: none;
  border-color: #6c5ce7;
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

.admin-form-select {
  width: 100%;
  max-width: 480px;
  padding: 10px 14px;
  background: #0a0a0f;
  border: 1px solid #2a2a3a;
  border-radius: 8px;
  color: #e0e0e0;
  font-size: 0.9rem;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23888' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  transition: border-color 0.2s ease;
}

.admin-form-select:focus {
  outline: none;
  border-color: #6c5ce7;
}

.admin-form-textarea {
  width: 100%;
  max-width: 480px;
  padding: 10px 14px;
  background: #0a0a0f;
  border: 1px solid #2a2a3a;
  border-radius: 8px;
  color: #e0e0e0;
  font-size: 0.9rem;
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
  transition: border-color 0.2s ease;
  box-sizing: border-box;
}

.admin-form-textarea:focus {
  outline: none;
  border-color: #6c5ce7;
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

.admin-form-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.admin-form-toggle input[type="checkbox"] {
  display: none;
}

.admin-form-toggle .toggle-track {
  width: 44px;
  height: 24px;
  background: #2a2a3a;
  border-radius: 12px;
  position: relative;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.admin-form-toggle input:checked + .toggle-track {
  background: #6c5ce7;
}

.admin-form-toggle .toggle-track::after {
  content: '';
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: transform 0.2s ease;
}

.admin-form-toggle input:checked + .toggle-track::after {
  transform: translateX(20px);
}

.admin-form-toggle .toggle-label {
  font-size: 0.88rem;
  color: #e0e0e0;
}

.admin-form-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid #2a2a3a;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-sidebar.open {
    transform: translateX(0);
  }

  .admin-content {
    margin-left: 0;
    padding: 24px 20px;
  }

  .admin-charts-grid {
    grid-template-columns: 1fr;
  }
}

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

  .admin-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .admin-table-wrapper {
    overflow-x: auto;
  }

  .admin-table {
    min-width: 700px;
  }

  .admin-table-header {
    flex-direction: column;
    gap: 12px;
  }

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

@media (max-width: 480px) {
  .admin-stats {
    grid-template-columns: 1fr;
  }
}