/* ============================================================
   商贸168 B2B Platform - Admin Panel Stylesheet
   Color: #1a3a6b (Deep Blue), #ff6600 (Orange Accent), #f5f7fa (Light BG)
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --primary:       #1a3a6b;
  --primary-dark:  #0f2a4f;
  --primary-light: #2c5290;
  --accent:        #ff6600;
  --accent-hover:  #e55c00;
  --accent-light:  #fff3e6;
  --bg-light:      #f5f7fa;
  --bg-white:      #ffffff;
  --text-primary:  #333333;
  --text-secondary:#666666;
  --text-muted:    #999999;
  --border:        #e0e3e8;
  --border-light:  #f0f0f0;
  --shadow:        0 2px 8px rgba(0,0,0,.06);
  --shadow-hover:  0 4px 16px rgba(0,0,0,.1);
  --radius:        6px;
  --radius-lg:     10px;
  --sidebar-w:     220px;
  --header-h:      56px;
  --font:          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --transition:    .25s ease;
  --success:       #27ae60;
  --danger:        #e74c3c;
  --warning:       #f39c12;
  --info:          #3498db;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
input, select, textarea, button { font-family: inherit; font-size: inherit; outline: none; }

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

/* ---- Admin Top Bar ---- */
.admin-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: var(--primary);
  color: #fff;
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,.1);
}
.admin-header .admin-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  width: var(--sidebar-w);
  flex-shrink: 0;
}
.admin-header .admin-logo span { color: var(--accent); }
.admin-header .admin-logo img { height: 30px; }
.admin-header .header-toolbar {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 6px;
}
.admin-header .header-toolbar .toolbar-btn {
  color: rgba(255,255,255,.8);
  background: rgba(255,255,255,.1);
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  position: relative;
}
.admin-header .header-toolbar .toolbar-btn:hover { background: rgba(255,255,255,.2); color: #fff; }
.admin-header .header-toolbar .toolbar-btn .badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.admin-header .header-toolbar .admin-user {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 14px;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: var(--radius);
  transition: background var(--transition);
}
.admin-header .header-toolbar .admin-user:hover { background: rgba(255,255,255,.1); }
.admin-header .header-toolbar .admin-user .avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.3);
  overflow: hidden;
  background: var(--primary-light);
}
.admin-header .header-toolbar .admin-user .avatar img { width: 100%; height: 100%; object-fit: cover; }
.admin-header .header-toolbar .admin-user .name { font-size: 13px; }
.admin-header .header-toolbar .admin-user .arrow { font-size: 10px; margin-left: 4px; opacity: .6; }

/* ---- Sidebar ---- */
.admin-sidebar {
  position: fixed;
  top: var(--header-h);
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: #1e2a3a;
  color: #a0b5d0;
  overflow-y: auto;
  z-index: 999;
  transition: transform var(--transition);
}
.admin-sidebar::-webkit-scrollbar { width: 4px; }
.admin-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }
.admin-sidebar .sidebar-menu { padding: 10px 0; }
.admin-sidebar .sidebar-menu .menu-title {
  padding: 12px 18px 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,.3);
  font-weight: 600;
}
.admin-sidebar .sidebar-menu .nav-item {
  position: relative;
}
.admin-sidebar .sidebar-menu .nav-item > a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  color: #a0b5d0;
  font-size: 14px;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}
.admin-sidebar .sidebar-menu .nav-item > a:hover,
.admin-sidebar .sidebar-menu .nav-item.active > a {
  background: rgba(255,255,255,.06);
  color: #fff;
}
.admin-sidebar .sidebar-menu .nav-item.active > a {
  border-left-color: var(--accent);
  background: rgba(255,255,255,.08);
}
.admin-sidebar .sidebar-menu .nav-item > a .icon {
  width: 20px;
  text-align: center;
  font-size: 16px;
  flex-shrink: 0;
}
.admin-sidebar .sidebar-menu .nav-item > a .arrow-icon {
  margin-left: auto;
  font-size: 10px;
  transition: transform var(--transition);
  opacity: .4;
}
.admin-sidebar .sidebar-menu .nav-item.open > a .arrow-icon { transform: rotate(90deg); }
.admin-sidebar .sidebar-menu .nav-item > a .badge {
  margin-left: auto;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 10px;
  font-weight: 600;
}
.admin-sidebar .sidebar-menu .sub-menu {
  display: none;
  background: rgba(0,0,0,.15);
}
.admin-sidebar .sidebar-menu .nav-item.open .sub-menu { display: block; }
.admin-sidebar .sidebar-menu .sub-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px 9px 51px;
  color: #7a8aaa;
  font-size: 13px;
  transition: all var(--transition);
}
.admin-sidebar .sidebar-menu .sub-menu a:hover,
.admin-sidebar .sidebar-menu .sub-menu a.active {
  color: #fff;
  background: rgba(255,255,255,.04);
}

/* ---- Main Content Area ---- */
.admin-main {
  margin-left: var(--sidebar-w);
  margin-top: var(--header-h);
  flex: 1;
  padding: 20px 24px 40px;
  min-height: calc(100vh - var(--header-h));
}

/* ---- Page Header ---- */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 10px;
}
.page-header h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}
.page-header .page-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.page-header .page-actions .btn { white-space: nowrap; }

/* ============================================================
   TABLES
   ============================================================ */
.table-wrapper {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.table-wrapper .table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
  gap: 10px;
}
.table-wrapper .table-toolbar .toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.table-wrapper .table-toolbar .toolbar-left input,
.table-wrapper .table-toolbar .toolbar-left select {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
  background: #fff;
}
.table-wrapper .table-toolbar .toolbar-left input:focus,
.table-wrapper .table-toolbar .toolbar-left select:focus {
  border-color: var(--primary);
}
.table-wrapper .table-toolbar .toolbar-right {
  display: flex;
  gap: 6px;
}
.table-wrapper .table-toolbar .result-info {
  font-size: 13px;
  color: var(--text-muted);
}
.table-wrapper .table-toolbar .result-info strong { color: var(--primary); }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.admin-table thead {
  background: var(--bg-light);
}
.admin-table thead th {
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1;
}
.admin-table thead th.sortable {
  cursor: pointer;
  user-select: none;
}
.admin-table thead th.sortable:hover { color: var(--primary); }
.admin-table thead th.sortable .sort-icon { margin-left: 4px; font-size: 10px; opacity: .4; }

.admin-table tbody tr {
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition);
}
.admin-table tbody tr:hover { background: #f8f9fb; }
.admin-table tbody tr.selected { background: var(--accent-light); }
.admin-table tbody tr:last-child { border-bottom: none; }
.admin-table tbody td {
  padding: 10px 14px;
  color: var(--text-primary);
  vertical-align: middle;
}

.admin-table tbody td .cell-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-light);
}
.admin-table tbody td .cell-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.admin-table tbody td .cell-title {
  font-weight: 500;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 220px;
}
.admin-table tbody td .cell-title a { color: var(--text-primary); }
.admin-table tbody td .cell-title a:hover { color: var(--accent); }
.admin-table tbody td .cell-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ---- Status Badges ---- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}
.status-badge.active,
.status-badge.approved,
.status-badge.enabled {
  background: #e8f8ed;
  color: var(--success);
}
.status-badge.pending {
  background: #fef9e7;
  color: var(--warning);
}
.status-badge.rejected,
.status-badge.disabled,
.status-badge.inactive {
  background: #fdedec;
  color: var(--danger);
}
.status-badge.draft {
  background: var(--bg-light);
  color: var(--text-muted);
}
.status-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.status-badge.active .dot,
.status-badge.approved .dot { background: var(--success); }
.status-badge.pending .dot { background: var(--warning); }
.status-badge.rejected .dot,
.status-badge.disabled .dot { background: var(--danger); }

.verify-badge {
  display: inline-block;
  background: var(--info);
  color: #fff;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 500;
}
.verify-badge.vip {
  background: #f1c40f;
  color: #333;
}

/* ---- Table Actions ---- */
.table-actions {
  display: flex;
  gap: 4px;
  flex-wrap: nowrap;
}
.table-actions .btn-action {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.table-actions .btn-action:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.table-actions .btn-action.edit:hover { border-color: var(--info); color: var(--info); }
.table-actions .btn-action.delete:hover { border-color: var(--danger); color: var(--danger); }
.table-actions .btn-action.view:hover { border-color: var(--success); color: var(--success); }

/* ---- Checkbox in Tables ---- */
.admin-table .check-col { width: 40px; text-align: center; }
.admin-table .check-col input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* ---- Table Responsive ---- */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ============================================================
   ADMIN FORMS
   ============================================================ */
.form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 20px;
}
.form-card .form-card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light);
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}
.form-card .form-card-header .subtitle {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 8px;
}
.form-card .form-card-body { padding: 20px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 24px;
}
.form-grid .form-group { margin-bottom: 0; }
.form-grid .form-group.full-width { grid-column: 1 / -1; }
.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px 20px;
}
.form-grid-3 .form-group.full-width { grid-column: 1 / -1; }

.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 5px;
}
.form-group label .required { color: var(--danger); margin-left: 2px; }
.form-group label .tip {
  font-weight: 400;
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-primary);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,58,107,.08);
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-group input[readonly],
.form-group input[disabled] {
  background: var(--bg-light);
  cursor: not-allowed;
}
.form-group .help-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}
.form-group .error-text {
  font-size: 12px;
  color: var(--danger);
  margin-top: 4px;
}
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: var(--danger);
}

/* ---- Input Group (prepend/append) ---- */
.form-group .input-group {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.form-group .input-group:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,58,107,.08); }
.form-group .input-group input {
  border: none;
  flex: 1;
  border-radius: 0;
}
.form-group .input-group input:focus { box-shadow: none; }
.form-group .input-group .addon {
  background: var(--bg-light);
  padding: 0 12px;
  display: flex;
  align-items: center;
  color: var(--text-secondary);
  font-size: 13px;
  white-space: nowrap;
}
.form-group .input-group .addon:first-child { border-right: 1px solid var(--border); }
.form-group .input-group .addon:last-child { border-left: 1px solid var(--border); }

/* ---- Image Upload ---- */
.form-group .image-upload {
  position: relative;
  width: 120px;
  height: 120px;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
}
.form-group .image-upload:hover { border-color: var(--primary); background: var(--bg-light); }
.form-group .image-upload input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.form-group .image-upload .upload-icon {
  font-size: 32px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.form-group .image-upload .upload-text {
  font-size: 12px;
  color: var(--text-muted);
}
.form-group .image-upload img.preview {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}
.form-group .image-upload .remove-img {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  background: rgba(0,0,0,.5);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 12px;
  display: none;
  align-items: center;
  justify-content: center;
}
.form-group .image-upload:hover .remove-img { display: flex; }

/* ---- File Upload List ---- */
.form-group .file-upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.form-group .file-upload-area:hover {
  border-color: var(--primary);
  background: var(--bg-light);
}
.form-group .file-upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.form-group .file-upload-area .upload-icon { font-size: 28px; color: var(--text-muted); margin-bottom: 4px; }
.form-group .file-upload-area .upload-text { font-size: 13px; color: var(--text-secondary); }
.form-group .file-list { margin-top: 8px; }
.form-group .file-list .file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg-light);
  border-radius: var(--radius);
  margin-bottom: 4px;
  font-size: 13px;
}

/* ---- Radio / Checkbox Inline ---- */
.form-group .radio-group,
.form-group .checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 4px;
}
.form-group .radio-group label,
.form-group .checkbox-group label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 400;
  font-size: 14px;
  cursor: pointer;
}
.form-group .radio-group input[type="radio"],
.form-group .checkbox-group input[type="checkbox"] {
  width: auto;
  accent-color: var(--primary);
}

/* ---- Toggle Switch ---- */
.form-group .toggle-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.form-group .toggle-switch input { display: none; }
.form-group .toggle-switch .slider {
  width: 44px;
  height: 24px;
  background: #ccc;
  border-radius: 12px;
  transition: background var(--transition);
  position: relative;
}
.form-group .toggle-switch .slider::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,.15);
}
.form-group .toggle-switch input:checked + .slider {
  background: var(--success);
}
.form-group .toggle-switch input:checked + .slider::after {
  transform: translateX(20px);
}
.form-group .toggle-switch .label-text { font-size: 14px; font-weight: 400; color: var(--text-primary); }

/* ---- Form Actions ---- */
.form-actions {
  display: flex;
  gap: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  margin-top: 10px;
}

/* ============================================================
   ADMIN BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-hover); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light {
  background: var(--bg-light);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-light:hover { background: var(--border); color: var(--text-primary); }
.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover { background: #219a52; }
.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: #c0392b; }
.btn-warning {
  background: var(--warning);
  color: #fff;
}
.btn-warning:hover { background: #d68910; }
.btn-info {
  background: var(--info);
  color: #fff;
}
.btn-info:hover { background: #2980b9; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 10px 26px; font-size: 15px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ============================================================
   CARDS (Dashboard)
   ============================================================ */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: box-shadow var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-hover); }
.stat-card .stat-info .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.stat-card .stat-info .stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
}
.stat-card .stat-info .stat-change {
  font-size: 12px;
  margin-top: 2px;
}
.stat-card .stat-info .stat-change.up { color: var(--success); }
.stat-card .stat-info .stat-change.down { color: var(--danger); }
.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}
.stat-card .stat-icon.blue   { background: #e8f0fe; color: var(--primary); }
.stat-card .stat-icon.orange { background: var(--accent-light); color: var(--accent); }
.stat-card .stat-icon.green  { background: #e8f8ed; color: var(--success); }
.stat-card .stat-icon.red    { background: #fdedec; color: var(--danger); }
.stat-card .stat-icon.purple { background: #f0e6ff; color: #8e44ad; }
.stat-card .stat-icon.teal   { background: #e6f9f9; color: #1abc9c; }

/* ---- Chart / Content Card ---- */
.content-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  overflow: hidden;
}
.content-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light);
}
.content-card .card-header h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}
.content-card .card-header .card-actions { display: flex; gap: 6px; }
.content-card .card-body { padding: 20px; }
.content-card .card-body .chart-placeholder {
  height: 260px;
  background: var(--bg-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 13px;
}

/* ============================================================
   ALERTS / NOTIFICATIONS
   ============================================================ */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.5;
}
.alert .alert-icon { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.alert .alert-close {
  margin-left: auto;
  cursor: pointer;
  font-size: 16px;
  opacity: .5;
  background: none;
  border: none;
  color: inherit;
  flex-shrink: 0;
}
.alert .alert-close:hover { opacity: 1; }
.alert-success { background: #e8f8ed; color: #1e8449; border-left: 3px solid var(--success); }
.alert-info    { background: #e8f0fe; color: #1a5276; border-left: 3px solid var(--info); }
.alert-warning { background: #fef9e7; color: #7d6608; border-left: 3px solid var(--warning); }
.alert-danger  { background: #fdedec; color: #922b21; border-left: 3px solid var(--danger); }

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.toast-container {
  position: fixed;
  top: 70px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,.15);
  min-width: 280px;
  max-width: 400px;
  animation: slideInRight .3s ease forwards;
  font-size: 13px;
}
.toast.toast-success { border-left: 4px solid var(--success); }
.toast.toast-error   { border-left: 4px solid var(--danger); }
.toast.toast-warning { border-left: 4px solid var(--warning); }
.toast.toast-info    { border-left: 4px solid var(--info); }
.toast .toast-icon { font-size: 18px; flex-shrink: 0; }
.toast.toast-success .toast-icon { color: var(--success); }
.toast.toast-error   .toast-icon { color: var(--danger); }
.toast.toast-warning .toast-icon { color: var(--warning); }
.toast.toast-info    .toast-icon { color: var(--info); }
.toast .toast-body { flex: 1; }
.toast .toast-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn .2s ease;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0,0,0,.2);
  animation: scaleIn .25s ease;
}
.modal.modal-sm { max-width: 400px; }
.modal.modal-lg { max-width: 720px; }
.modal .modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}
.modal .modal-header h3 { font-size: 16px; font-weight: 600; color: var(--primary); }
.modal .modal-header .modal-close {
  width: 30px; height: 30px;
  border: none;
  background: var(--bg-light);
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.modal .modal-header .modal-close:hover { background: var(--danger); color: #fff; }
.modal .modal-body { padding: 20px; }
.modal .modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
}

/* ============================================================
   DROPDOWN (Admin User Menu)
   ============================================================ */
.dropdown {
  position: relative;
}
.dropdown .dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 160px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all var(--transition);
  z-index: 1001;
  padding: 6px 0;
}
.dropdown.open .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown .dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-secondary);
}
.dropdown .dropdown-menu a:hover { background: var(--bg-light); color: var(--primary); }
.dropdown .dropdown-menu .divider {
  height: 1px;
  background: var(--border-light);
  margin: 4px 0;
}

/* ============================================================
   BREADCRUMB (Admin)
   ============================================================ */
.admin-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.admin-breadcrumb a { color: var(--text-muted); }
.admin-breadcrumb a:hover { color: var(--accent); }
.admin-breadcrumb .sep { color: #ccc; }
.admin-breadcrumb .current { color: var(--primary); font-weight: 500; }

/* ============================================================
   PAGINATION (Admin)
   ============================================================ */
.admin-pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-top: 1px solid var(--border-light);
  flex-wrap: wrap;
  gap: 10px;
}
.admin-pagination .page-info {
  font-size: 13px;
  color: var(--text-muted);
}
.admin-pagination .page-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.admin-pagination .page-links a,
.admin-pagination .page-links span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.admin-pagination .page-links a:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.admin-pagination .page-links .active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.admin-pagination .page-links .disabled {
  color: #ccc;
  cursor: not-allowed;
  background: var(--bg-light);
}
.admin-pagination .page-links .ellipsis {
  border: none;
  background: none;
  color: var(--text-muted);
  min-width: 20px;
}
.admin-pagination .page-size select {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  background: #fff;
}

/* ============================================================
   TABS
   ============================================================ */
.admin-tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
}
.admin-tabs .tab-item {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--transition);
}
.admin-tabs .tab-item:hover { color: var(--primary); }
.admin-tabs .tab-item.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.admin-tabs .tab-item .badge {
  margin-left: 4px;
  background: var(--bg-light);
  color: var(--text-muted);
  font-size: 11px;
  padding: 0 6px;
  border-radius: 8px;
}
.admin-tabs .tab-item.active .badge {
  background: var(--accent-light);
  color: var(--accent);
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 20px;
  position: relative;
}
.login-page::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.login-box {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 32px 30px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 8px 40px rgba(0,0,0,.15);
  position: relative;
  z-index: 1;
}
.login-box .logo-area {
  text-align: center;
  margin-bottom: 28px;
}
.login-box .logo-area .logo-icon {
  font-size: 36px;
  color: var(--primary);
  margin-bottom: 8px;
}
.login-box .logo-area h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}
.login-box .logo-area h2 span { color: var(--accent); }
.login-box .logo-area p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.login-box .form-group {
  margin-bottom: 16px;
}
.login-box .form-group label {
  font-weight: 500;
  font-size: 13px;
  color: var(--text-primary);
}
.login-box .form-group input {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  font-size: 14px;
  transition: border-color var(--transition);
}
.login-box .form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,58,107,.08);
}
.login-box .form-group .input-icon-wrap {
  position: relative;
}
.login-box .form-group .input-icon-wrap .prefix-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}
.login-box .form-group .input-icon-wrap input { padding-left: 36px; }
.login-box .form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  margin-bottom: 18px;
}
.login-box .form-options label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  font-weight: 400;
}
.login-box .form-options a { color: var(--text-muted); }
.login-box .form-options a:hover { color: var(--accent); }
.login-box .btn-login {
  width: 100%;
  padding: 11px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}
.login-box .btn-login:hover { background: var(--accent); }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-muted);
}
.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: .4;
}
.empty-state h3 {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.empty-state p { font-size: 13px; margin-bottom: 16px; }

/* ============================================================
   LOADING STATE
   ============================================================ */
.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 0;
}
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.spinner-sm { width: 18px; height: 18px; border-width: 2px; }

/* ============================================================
   TOOLTIP
   ============================================================ */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #333;
  color: #fff;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 10;
  pointer-events: none;
}
[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   SIDEBAR TOGGLE (Mobile admin)
   ============================================================ */
.admin-sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  margin-right: 14px;
  padding: 4px;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(.94); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-left   { text-align: left; }
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-primary { color: var(--primary) !important; }
.text-accent  { color: var(--accent) !important; }
.text-success { color: var(--success) !important; }
.text-danger  { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted   { color: var(--text-muted) !important; }
.bg-white { background: #fff; }
.bg-light { background: var(--bg-light); }
.mt-5  { margin-top: 5px; }
.mt-10 { margin-top: 10px; }
.mt-15 { margin-top: 15px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mb-5  { margin-bottom: 5px; }
.mb-10 { margin-bottom: 10px; }
.mb-15 { margin-bottom: 15px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.ml-auto { margin-left: auto; }
.flex    { display: flex; }
.flex-c  { display: flex; align-items: center; }
.flex-b  { display: flex; justify-content: space-between; align-items: center; }
.flex-w  { display: flex; flex-wrap: wrap; }
.gap-5  { gap: 5px; }
.gap-10 { gap: 10px; }
.gap-15 { gap: 15px; }
.gap-20 { gap: 20px; }
.hidden { display: none !important; }
.w-full { width: 100%; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1199px) {
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 991px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }
  .admin-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0,0,0,.1);
  }
  .admin-main {
    margin-left: 0;
  }
  .admin-sidebar-toggle { display: block; }
  .admin-header .admin-logo { width: auto; }
  .admin-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.3);
    z-index: 998;
    display: none;
  }
  .admin-overlay.open { display: block; }
}
@media (max-width: 767px) {
  .admin-main { padding: 14px; }
  .stat-cards { grid-template-columns: 1fr; gap: 10px; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .page-header h1 { font-size: 18px; }
  .admin-table { font-size: 12px; }
  .admin-table thead th,
  .admin-table tbody td { padding: 8px 10px; }
  .admin-table tbody td .cell-title { max-width: 120px; }
  .admin-tabs { overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  .admin-tabs .tab-item { padding: 10px 14px; }
  .form-card .form-card-header { padding: 12px 16px; }
  .form-card .form-card-body { padding: 16px; }
  .modal { max-width: 100%; margin: 10px; }
  .admin-pagination { flex-direction: column; align-items: flex-start; }
  .login-box { padding: 24px 20px; }
}
@media (max-width: 480px) {
  .admin-main { padding: 10px; }
  .admin-header { padding: 0 12px; }
  .admin-header .header-toolbar .admin-user .name { display: none; }
  .table-wrapper .table-toolbar { flex-direction: column; align-items: stretch; }
  .stat-card { padding: 14px; }
  .stat-card .stat-info .stat-number { font-size: 22px; }
}