/* ============================================================
   X-GORB Baike - Admin Stylesheet
   Encyclopedia System Admin Panel
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --admin-primary: #1a73e8;
  --admin-primary-dark: #1557b0;
  --admin-primary-light: #e8f0fe;
  --admin-sidebar-bg: #1e293b;
  --admin-sidebar-hover: #334155;
  --admin-sidebar-active: #1a73e8;
  --admin-sidebar-text: #cbd5e1;
  --admin-sidebar-text-active: #ffffff;
  --admin-bg: #f1f5f9;
  --admin-card-bg: #ffffff;
  --admin-text: #1e293b;
  --admin-text-secondary: #64748b;
  --admin-text-muted: #94a3b8;
  --admin-border: #e2e8f0;
  --admin-border-light: #f1f5f9;
  --admin-success: #10b981;
  --admin-warning: #f59e0b;
  --admin-danger: #ef4444;
  --admin-info: #3b82f6;
  --admin-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --admin-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --admin-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --admin-radius: 8px;
  --admin-radius-sm: 4px;
  --admin-radius-lg: 12px;
  --admin-sidebar-width: 250px;
  --admin-sidebar-collapsed: 64px;
  --admin-transition: 0.2s ease;
  --admin-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
}

/* --- Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
}

body {
  font-family: var(--admin-font);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--admin-text);
  background: var(--admin-bg);
  min-height: 100vh;
}

a {
  color: var(--admin-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================================================
   ADMIN LAYOUT
   ============================================================ */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.admin-sidebar {
  width: var(--admin-sidebar-width);
  background: var(--admin-sidebar-bg);
  color: var(--admin-sidebar-text);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: width var(--admin-transition);
  overflow-x: hidden;
  overflow-y: auto;
}

.admin-sidebar.collapsed {
  width: var(--admin-sidebar-collapsed);
}

.admin-sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.admin-sidebar-logo {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--admin-primary);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.85rem;
}

.admin-sidebar-brand {
  font-size: 1rem;
  font-weight: 700;
  color: var(--admin-sidebar-text-active);
  white-space: nowrap;
}

.admin-sidebar-brand small {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--admin-text-muted);
}

/* Sidebar Nav */
.admin-sidebar-nav {
  flex: 1;
  padding: 12px 0;
}

.admin-sidebar-nav .nav-section {
  padding: 8px 20px 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--admin-text-muted);
  white-space: nowrap;
}

.admin-sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--admin-sidebar-text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--admin-transition);
  border-left: 3px solid transparent;
  white-space: nowrap;
}

.admin-sidebar-nav a:hover {
  background: var(--admin-sidebar-hover);
  color: var(--admin-sidebar-text-active);
  text-decoration: none;
}

.admin-sidebar-nav a.active {
  background: rgba(26, 115, 232, 0.15);
  color: var(--admin-sidebar-text-active);
  border-left-color: var(--admin-primary);
  font-weight: 600;
}

.admin-sidebar-nav a .nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-sidebar-nav a .nav-badge {
  margin-left: auto;
  background: var(--admin-danger);
  color: white;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}

/* Sidebar Footer */
.admin-sidebar-footer {
  padding: 12px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.admin-sidebar-footer a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  color: var(--admin-sidebar-text);
  font-size: 0.85rem;
  white-space: nowrap;
}

.admin-sidebar-footer a:hover {
  color: var(--admin-sidebar-text-active);
  text-decoration: none;
}

/* --- Main Content Area --- */
.admin-main {
  flex: 1;
  margin-left: var(--admin-sidebar-width);
  transition: margin-left var(--admin-transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-sidebar.collapsed ~ .admin-main {
  margin-left: var(--admin-sidebar-collapsed);
}

/* --- Admin Top Bar --- */
.admin-topbar {
  background: var(--admin-card-bg);
  border-bottom: 1px solid var(--admin-border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.admin-topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-sidebar-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--admin-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--admin-transition);
  color: var(--admin-text-secondary);
}

.admin-sidebar-toggle:hover {
  background: var(--admin-border-light);
}

.admin-topbar-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--admin-text);
}

.admin-topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.admin-topbar-search {
  position: relative;
}

.admin-topbar-search input {
  width: 240px;
  height: 36px;
  padding: 0 36px 0 12px;
  border: 1px solid var(--admin-border);
  border-radius: 20px;
  font-size: 0.85rem;
  outline: none;
  background: var(--admin-bg);
  transition: all var(--admin-transition);
}

.admin-topbar-search input:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px var(--admin-primary-light);
  background: var(--admin-card-bg);
}

.admin-topbar-search button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--admin-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--admin-radius);
  transition: background var(--admin-transition);
}

.admin-user-menu:hover {
  background: var(--admin-bg);
}

.admin-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--admin-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

.admin-user-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--admin-text);
}

/* --- Admin Content --- */
.admin-content {
  flex: 1;
  padding: 24px;
}

/* ============================================================
   DASHBOARD CARDS
   ============================================================ */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.admin-stat-card {
  background: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: box-shadow var(--admin-transition);
}

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

.admin-stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--admin-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.admin-stat-icon.blue {
  background: #e8f0fe;
  color: var(--admin-primary);
}

.admin-stat-icon.green {
  background: #d1fae5;
  color: var(--admin-success);
}

.admin-stat-icon.orange {
  background: #fef3c7;
  color: var(--admin-warning);
}

.admin-stat-icon.red {
  background: #fee2e2;
  color: var(--admin-danger);
}

.admin-stat-icon.purple {
  background: #ede9fe;
  color: #8b5cf6;
}

.admin-stat-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--admin-text);
  line-height: 1.2;
}

.admin-stat-info p {
  font-size: 0.8rem;
  color: var(--admin-text-secondary);
  margin-top: 2px;
}

.admin-stat-info .stat-change {
  font-size: 0.75rem;
  margin-top: 4px;
}

.admin-stat-info .stat-change.up {
  color: var(--admin-success);
}

.admin-stat-info .stat-change.down {
  color: var(--admin-danger);
}

/* ============================================================
   DATA TABLES
   ============================================================ */
.admin-table-wrapper {
  background: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  overflow: hidden;
}

.admin-table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--admin-border);
}

.admin-table-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.admin-table-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table thead {
  background: var(--admin-bg);
}

.admin-table th {
  padding: 10px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--admin-text-secondary);
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--admin-border);
  white-space: nowrap;
  user-select: none;
}

.admin-table th.sortable {
  cursor: pointer;
}

.admin-table th.sortable:hover {
  color: var(--admin-primary);
}

.admin-table th.checkbox-col {
  width: 40px;
  padding: 10px 12px;
}

.admin-table td {
  padding: 12px 16px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--admin-border-light);
  vertical-align: middle;
}

.admin-table td.checkbox-col {
  width: 40px;
  padding: 12px;
}

.admin-table tbody tr {
  transition: background var(--admin-transition);
}

.admin-table tbody tr:hover {
  background: #f8fafc;
}

.admin-table tbody tr:nth-child(even) {
  background: #fafbfc;
}

.admin-table tbody tr:nth-child(even):hover {
  background: #f1f5f9;
}

.admin-table tbody tr.selected {
  background: var(--admin-primary-light);
}

.admin-table .table-actions {
  display: flex;
  gap: 4px;
}

.admin-table .table-actions button {
  padding: 4px 8px;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border);
  background: var(--admin-card-bg);
  color: var(--admin-text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--admin-transition);
}

.admin-table .table-actions button:hover {
  background: var(--admin-primary-light);
  color: var(--admin-primary);
  border-color: var(--admin-primary);
}

.admin-table .table-actions button.danger:hover {
  background: #fee2e2;
  color: var(--admin-danger);
  border-color: var(--admin-danger);
}

.admin-table .table-thumb {
  width: 40px;
  height: 40px;
  border-radius: var(--admin-radius-sm);
  object-fit: cover;
  background: var(--admin-border-light);
}

.admin-table .table-title {
  font-weight: 500;
  color: var(--admin-text);
}

.admin-table .table-title a {
  color: var(--admin-text);
}

.admin-table .table-title a:hover {
  color: var(--admin-primary);
}

/* Table Footer */
.admin-table-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--admin-border);
  font-size: 0.85rem;
  color: var(--admin-text-secondary);
}

/* ============================================================
   ADMIN FORMS
   ============================================================ */
.admin-form {
  background: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 24px;
}

.admin-form-section {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--admin-border-light);
}

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

.admin-form-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--admin-text);
}

.admin-form-group {
  margin-bottom: 16px;
}

.admin-form-group:last-child {
  margin-bottom: 0;
}

.admin-form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--admin-text);
}

.admin-form-group label .required {
  color: var(--admin-danger);
  margin-left: 2px;
}

.admin-form-group label .optional {
  color: var(--admin-text-muted);
  font-weight: 400;
  font-size: 0.8rem;
  margin-left: 4px;
}

.admin-form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--admin-transition), box-shadow var(--admin-transition);
  background: var(--admin-card-bg);
  color: var(--admin-text);
  font-family: inherit;
}

.admin-form-control:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px var(--admin-primary-light);
}

.admin-form-control:disabled {
  background: var(--admin-bg);
  color: var(--admin-text-muted);
  cursor: not-allowed;
}

.admin-form-control.error {
  border-color: var(--admin-danger);
}

.admin-form-control.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

textarea.admin-form-control {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

select.admin-form-control {
  appearance: none;
  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='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.admin-form-hint {
  font-size: 0.78rem;
  color: var(--admin-text-muted);
  margin-top: 4px;
}

.admin-form-error {
  font-size: 0.78rem;
  color: var(--admin-danger);
  margin-top: 4px;
  display: none;
}

.admin-form-control.error ~ .admin-form-error {
  display: block;
}

/* Form Row */
.admin-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .admin-form-row {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   ADMIN BUTTONS
   ============================================================ */
.admin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--admin-radius);
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--admin-transition);
  text-decoration: none;
  line-height: 1.4;
  font-family: inherit;
  white-space: nowrap;
}

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

.admin-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.admin-btn-primary {
  background: var(--admin-primary);
  color: #ffffff;
  border-color: var(--admin-primary);
}

.admin-btn-primary:hover {
  background: var(--admin-primary-dark);
  border-color: var(--admin-primary-dark);
}

.admin-btn-secondary {
  background: #f1f5f9;
  color: var(--admin-text);
  border-color: var(--admin-border);
}

.admin-btn-secondary:hover {
  background: var(--admin-border);
}

.admin-btn-outline {
  background: transparent;
  color: var(--admin-primary);
  border-color: var(--admin-primary);
}

.admin-btn-outline:hover {
  background: var(--admin-primary);
  color: #ffffff;
}

.admin-btn-danger {
  background: var(--admin-danger);
  color: #ffffff;
  border-color: var(--admin-danger);
}

.admin-btn-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.admin-btn-success {
  background: var(--admin-success);
  color: #ffffff;
  border-color: var(--admin-success);
}

.admin-btn-success:hover {
  background: #059669;
  border-color: #059669;
}

.admin-btn-warning {
  background: var(--admin-warning);
  color: #ffffff;
  border-color: var(--admin-warning);
}

.admin-btn-warning:hover {
  background: #d97706;
  border-color: #d97706;
}

.admin-btn-sm {
  padding: 4px 10px;
  font-size: 0.78rem;
}

.admin-btn-lg {
  padding: 12px 28px;
  font-size: 1rem;
}

.admin-btn-block {
  display: flex;
  width: 100%;
}

.admin-btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--admin-radius-sm);
}

/* ============================================================
   STATUS BADGES (Admin)
   ============================================================ */
.admin-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}

.admin-badge-draft {
  background: #f1f5f9;
  color: #64748b;
}

.admin-badge-pending {
  background: #fef3c7;
  color: #b45309;
}

.admin-badge-published {
  background: #d1fae5;
  color: #065f46;
}

.admin-badge-rejected {
  background: #fee2e2;
  color: #991b1b;
}

.admin-badge-archived {
  background: #e2e8f0;
  color: #475569;
}

.admin-badge-review {
  background: #ede9fe;
  color: #5b21b6;
}

/* ============================================================
   MODAL / DIALOG
   ============================================================ */
.admin-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--admin-transition), visibility var(--admin-transition);
}

.admin-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.admin-modal {
  background: var(--admin-card-bg);
  border-radius: var(--admin-radius-lg);
  box-shadow: var(--admin-shadow-lg);
  max-width: 520px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--admin-transition);
}

.admin-modal-overlay.active .admin-modal {
  transform: translateY(0);
}

.admin-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--admin-border);
}

.admin-modal-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.admin-modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--admin-text-muted);
  cursor: pointer;
  transition: background var(--admin-transition);
  background: none;
  border: none;
}

.admin-modal-close:hover {
  background: var(--admin-bg);
}

.admin-modal-body {
  padding: 20px 24px;
}

.admin-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 24px;
  border-top: 1px solid var(--admin-border);
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.admin-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #1e293b 100%);
  padding: 20px;
}

.admin-login-card {
  background: var(--admin-card-bg);
  border-radius: var(--admin-radius-lg);
  box-shadow: var(--admin-shadow-lg);
  padding: 40px;
  width: 100%;
  max-width: 420px;
}

.admin-login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.admin-login-logo .logo-icon {
  width: 56px;
  height: 56px;
  background: var(--admin-primary);
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.admin-login-logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--admin-text);
}

.admin-login-logo p {
  font-size: 0.85rem;
  color: var(--admin-text-secondary);
  margin-top: 4px;
}

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

.admin-login-form .admin-form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.admin-login-form .admin-form-control {
  height: 44px;
  font-size: 0.95rem;
}

.admin-login-form .admin-btn {
  width: 100%;
  height: 44px;
  font-size: 0.95rem;
  margin-top: 8px;
}

.admin-login-extra {
  margin-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--admin-text-muted);
}

.admin-login-extra a {
  color: var(--admin-primary);
}

/* ============================================================
   ALERT MESSAGES (Admin)
   ============================================================ */
.admin-alert {
  padding: 14px 18px;
  border-radius: var(--admin-radius);
  margin-bottom: 16px;
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border: 1px solid transparent;
}

.admin-alert .alert-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

.admin-alert .alert-content {
  flex: 1;
}

.admin-alert .alert-close {
  flex-shrink: 0;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
  background: none;
  border: none;
  font-size: 1.1rem;
  padding: 0;
  line-height: 1;
}

.admin-alert .alert-close:hover {
  opacity: 1;
}

.admin-alert-success {
  background: #ecfdf5;
  color: #065f46;
  border-color: #a7f3d0;
}

.admin-alert-warning {
  background: #fffbeb;
  color: #92400e;
  border-color: #fde68a;
}

.admin-alert-danger {
  background: #fef2f2;
  color: #991b1b;
  border-color: #fecaca;
}

.admin-alert-info {
  background: #eff6ff;
  color: #1e40af;
  border-color: #bfdbfe;
}

/* ============================================================
   ADMIN PAGINATION
   ============================================================ */
.admin-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-wrap: wrap;
}

.admin-pagination a,
.admin-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-sm);
  font-size: 0.85rem;
  color: var(--admin-text-secondary);
  background: var(--admin-card-bg);
  transition: all var(--admin-transition);
}

.admin-pagination a:hover {
  background: var(--admin-primary-light);
  color: var(--admin-primary);
  border-color: var(--admin-primary);
  text-decoration: none;
}

.admin-pagination .current {
  background: var(--admin-primary);
  color: #ffffff;
  border-color: var(--admin-primary);
  font-weight: 600;
}

.admin-pagination .disabled {
  color: var(--admin-text-muted);
  cursor: not-allowed;
  opacity: 0.5;
}

.admin-pagination .ellipsis {
  border: none;
  background: none;
  cursor: default;
}

.admin-pagination-info {
  font-size: 0.8rem;
  color: var(--admin-text-muted);
}

/* ============================================================
   TOGGLE SWITCH
   ============================================================ */
.admin-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.admin-toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.admin-toggle .toggle-track {
  width: 44px;
  height: 24px;
  border-radius: 12px;
  background: var(--admin-border);
  transition: background var(--admin-transition);
  position: relative;
  flex-shrink: 0;
}

.admin-toggle .toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--admin-card-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  transition: transform var(--admin-transition);
}

.admin-toggle input:checked + .toggle-track {
  background: var(--admin-primary);
}

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

.admin-toggle .toggle-label {
  font-size: 0.85rem;
  color: var(--admin-text);
}

/* ============================================================
   CUSTOM FIELDS / DYNAMIC ROWS
   ============================================================ */
.dynamic-rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dynamic-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  background: var(--admin-bg);
  border-radius: var(--admin-radius);
  border: 1px solid var(--admin-border-light);
}

.dynamic-row .admin-form-control {
  flex: 1;
}

.dynamic-row .admin-form-control:first-child {
  flex: 2;
}

.dynamic-row-remove {
  width: 32px;
  height: 32px;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border);
  background: var(--admin-card-bg);
  color: var(--admin-danger);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--admin-transition);
  font-size: 1rem;
  line-height: 1;
}

.dynamic-row-remove:hover {
  background: #fee2e2;
  border-color: var(--admin-danger);
}

.dynamic-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px dashed var(--admin-border);
  border-radius: var(--admin-radius);
  background: var(--admin-card-bg);
  color: var(--admin-primary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--admin-transition);
}

.dynamic-add-btn:hover {
  background: var(--admin-primary-light);
  border-color: var(--admin-primary);
}

/* ============================================================
   FILE UPLOAD
   ============================================================ */
.admin-file-upload {
  border: 2px dashed var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 24px;
  text-align: center;
  transition: border-color var(--admin-transition);
  cursor: pointer;
}

.admin-file-upload:hover {
  border-color: var(--admin-primary);
  background: var(--admin-primary-light);
}

.admin-file-upload.dragover {
  border-color: var(--admin-primary);
  background: var(--admin-primary-light);
}

.admin-file-upload .upload-icon {
  font-size: 2rem;
  margin-bottom: 8px;
  color: var(--admin-text-muted);
}

.admin-file-upload .upload-text {
  font-size: 0.9rem;
  color: var(--admin-text-secondary);
}

.admin-file-upload .upload-hint {
  font-size: 0.78rem;
  color: var(--admin-text-muted);
  margin-top: 4px;
}

.admin-file-upload input[type="file"] {
  display: none;
}

/* Upload Preview */
.admin-upload-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 10px;
  background: var(--admin-bg);
  border-radius: var(--admin-radius);
  border: 1px solid var(--admin-border-light);
}

.admin-upload-preview img {
  width: 60px;
  height: 60px;
  border-radius: var(--admin-radius-sm);
  object-fit: cover;
}

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

.admin-upload-preview .preview-name {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-upload-preview .preview-size {
  font-size: 0.78rem;
  color: var(--admin-text-muted);
}

.admin-upload-preview .preview-remove {
  color: var(--admin-danger);
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  font-size: 1rem;
}

/* ============================================================
   VERSION COMPARISON
   ============================================================ */
.version-diff {
  font-family: var(--admin-font);
  font-size: 0.9rem;
  line-height: 1.7;
}

.version-diff .diff-added {
  background: #d1fae5;
  color: #065f46;
  padding: 2px 0;
}

.version-diff .diff-removed {
  background: #fee2e2;
  color: #991b1b;
  text-decoration: line-through;
  padding: 2px 0;
}

.version-diff .diff-unchanged {
  color: var(--admin-text-secondary);
}

/* ============================================================
   CARD / PANEL
   ============================================================ */
.admin-card {
  background: var(--admin-card-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  overflow: hidden;
  margin-bottom: 20px;
}

.admin-card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-card-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.admin-card-body {
  padding: 20px;
}

.admin-card-body.no-padding {
  padding: 0;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.admin-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--admin-text-muted);
}

.admin-empty .empty-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.admin-empty h3 {
  font-size: 1.1rem;
  color: var(--admin-text-secondary);
  margin-bottom: 6px;
}

.admin-empty p {
  font-size: 0.85rem;
  margin-bottom: 16px;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.admin-text-center { text-align: center; }
.admin-text-right { text-align: right; }
.admin-text-muted { color: var(--admin-text-muted); }
.admin-text-success { color: var(--admin-success); }
.admin-text-warning { color: var(--admin-warning); }
.admin-text-danger { color: var(--admin-danger); }
.admin-font-bold { font-weight: 700; }
.admin-font-medium { font-weight: 500; }
.admin-mt-0 { margin-top: 0; }
.admin-mt-8 { margin-top: 8px; }
.admin-mt-16 { margin-top: 16px; }
.admin-mt-24 { margin-top: 24px; }
.admin-mb-0 { margin-bottom: 0; }
.admin-mb-8 { margin-bottom: 8px; }
.admin-mb-16 { margin-bottom: 16px; }
.admin-mb-24 { margin-bottom: 24px; }
.admin-flex { display: flex; }
.admin-align-center { align-items: center; }
.admin-justify-between { justify-content: space-between; }
.admin-gap-8 { gap: 8px; }
.admin-gap-16 { gap: 16px; }
.admin-flex-wrap { flex-wrap: wrap; }
.admin-hidden { display: none !important; }

/* ============================================================
   LOADING SPINNER
   ============================================================ */
.admin-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--admin-border);
  border-top-color: var(--admin-primary);
  border-radius: 50%;
  animation: admin-spin 0.6s linear infinite;
}

@keyframes admin-spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   TOOLTIP
   ============================================================ */
.admin-tooltip {
  position: relative;
}

.admin-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--admin-sidebar-bg);
  color: white;
  padding: 4px 10px;
  border-radius: var(--admin-radius-sm);
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--admin-transition);
  pointer-events: none;
  z-index: 10;
}

.admin-tooltip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .admin-stats-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }

  .admin-topbar-search input {
    width: 180px;
  }
}

@media (max-width: 768px) {
  .admin-sidebar {
    width: var(--admin-sidebar-collapsed);
  }

  .admin-sidebar .admin-sidebar-brand,
  .admin-sidebar .nav-section,
  .admin-sidebar-nav a span:not(.nav-icon),
  .admin-sidebar-nav a .nav-badge,
  .admin-sidebar-footer a span {
    display: none;
  }

  .admin-sidebar-nav a {
    justify-content: center;
    padding: 12px;
  }

  .admin-sidebar-header {
    justify-content: center;
    padding: 12px;
  }

  .admin-main {
    margin-left: var(--admin-sidebar-collapsed);
  }

  .admin-sidebar.expanded {
    width: var(--admin-sidebar-width);
  }

  .admin-sidebar.expanded .admin-sidebar-brand,
  .admin-sidebar.expanded .nav-section,
  .admin-sidebar.expanded .admin-sidebar-nav a span:not(.nav-icon),
  .admin-sidebar.expanded .admin-sidebar-nav a .nav-badge,
  .admin-sidebar.expanded .admin-sidebar-footer a span {
    display: inline;
  }

  .admin-sidebar.expanded .admin-sidebar-nav a {
    justify-content: flex-start;
    padding: 10px 20px;
  }

  .admin-sidebar.expanded .admin-sidebar-header {
    justify-content: flex-start;
    padding: 20px;
  }

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

  .admin-content {
    padding: 16px;
  }

  .admin-topbar-search input {
    width: 140px;
  }

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

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

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

  .admin-topbar-search {
    display: none;
  }

  .admin-topbar {
    padding: 0 12px;
  }

  .admin-login-card {
    padding: 24px;
  }

  .admin-modal {
    width: 95%;
  }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .admin-sidebar,
  .admin-topbar {
    display: none !important;
  }

  .admin-main {
    margin-left: 0 !important;
  }

  .admin-content {
    padding: 0;
  }
}