/* ============================================
   Admin Panel - Minimal Gray Style
   ============================================ */

* {
  box-sizing: border-box;
}

.admin-layout {
  display: flex;
  min-height: 100vh;
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f0f0f0;
  color: #333;
  line-height: 1.5;
}

/* Sidebar 已迁移到 public/js/admin-sidebar.js (2026-06-20 重构) */

/* Main Content */
.admin-main {
  flex: 1;
  margin-left: var(--admin-sidebar-width);
  padding: 32px 40px;
  min-height: 100vh;
  background: #f0f0f0;
  transition: margin-left 0.18s ease;
}

body.sidebar-collapsed .admin-main {
  margin-left: var(--admin-sidebar-width-collapsed, 56px);
}

/* Admin page header */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eee;
}

.admin-header h1 {
  font-size: 24px;
  font-weight: 600;
  color: #333;
  margin: 0;
}

.admin-actions {
  display: flex;
  gap: 12px;
}

/* Log table - use data-table styles */
.log-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
}

.log-table thead {
  background: #f9fafb;
}

.log-table th,
.log-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
  font-size: 13px;
}

.log-table th {
  font-size: 12px;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.log-table td {
  color: #374151;
}

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

/* Log table row hover */
.log-table tbody tr {
  transition: all 0.2s ease;
}

.log-table tbody tr:hover {
  background: #f9fafb;
  transform: scale(1.002);
}

.log-table tbody tr:active {
  transform: scale(0.998);
}

/* Log status badges */
.log-table .status {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
}

.log-table .status.success {
  background: #d1fae5;
  color: #065f46;
}

.log-table .status.failed {
  background: #fee2e2;
  color: #991b1b;
}

.log-table .status.warning {
  background: #fef3c7;
  color: #92400e;
}

/* Log table card container */
.form-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.form-card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

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

.page-header h1 {
  font-size: 16px;
  font-weight: 600;
  color: #333;
  margin: 0;
}

.page-header .actions {
  display: flex;
  gap: 8px;
}

/* Cards */
.card {
  background: #fff;
  border-radius: 4px;
  padding: 14px;
  margin-bottom: 12px;
  border: 1px solid #ddd;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid #eee;
}

.card-header h2 {
  font-size: 13px;
  font-weight: 600;
  color: #333;
  margin: 0;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.stat-card {
  background: #fff;
  border-radius: 6px;
  padding: 16px;
  text-align: center;
  border: 1px solid #ddd;
  transition: transform 0.15s ease,
              box-shadow 0.15s ease;
}

.stat-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 24px rgba(var(--primary-rgb, 19, 60, 138), 0.12),
              0 0 0 1px var(--primary, #133c8a);
}

.stat-card:active {
  transform: translateY(-2px) scale(0.98);
}

.stat-card .number {
  font-size: 28px;
  font-weight: 700;
  color: #333;
}

.stat-card .label {
  font-size: 13px;
  color: #666;
  margin-top: 6px;
}

.stat-card.highlight {
  background: #f5f5f5;
}

/* Data Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
}

.data-table thead {
  background: #f9f9f9;
}

.data-table th,
.data-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #eee;
  font-size: 13px;
}

.data-table th {
  font-size: 12px;
  font-weight: 600;
  color: #555;
  text-transform: uppercase;
}

.data-table td {
  font-size: 12px;
  color: #333;
}

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

/* Table row hover */
.data-table tbody tr {
  transition: all 0.2s ease;
}

.data-table tbody tr:hover {
  background: var(--hover-bg, #f8f9fa);
  transform: scale(1.005);
}

.data-table tbody tr:active {
  transform: scale(0.998);
}

/* Search Box */
.search-box {
  margin-bottom: 12px;
}

/* Telemetry table */
.telemetry-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
}

.telemetry-table thead {
  background: #f9fafb;
}

.telemetry-table th,
.telemetry-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
  font-size: 12px;
}

.telemetry-table th {
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
}

.telemetry-table td {
  color: #374151;
}

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

.telemetry-table tbody tr {
  transition: all 0.2s ease;
}

.telemetry-table tbody tr:hover {
  background: #f9fafb;
}

.telemetry-table .empty-state {
  text-align: center;
  padding: 40px;
  color: #9ca3af;
}

/* Telemetry pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-top: 1px solid #e5e7eb;
}

.pagination button {
  padding: 8px 16px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  background: #fff;
  color: #374151;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pagination button:hover {
  background: #f3f4f6;
  border-color: #9ca3af;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination #page-info {
  font-size: 12px;
  color: #6b7280;
}
  border-radius: 4px;
  font-size: 12px;
  width: 260px;
}

.search-box input:focus {
  outline: none;
  border-color: #999;
}

/* Forms */
.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 12px;
  font-weight: 500;
  color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 12px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #999;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 4px;
  border: 1px solid #ccc;
  cursor: pointer;
  text-decoration: none;
  background: #f5f5f5;
  color: #333;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s, transform 0.12s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(var(--primary-rgb, 19, 60, 138), 0.2);
}

.btn:active {
  transform: scale(0.95);
}

.btn-primary {
  background: #4a5568;
  color: #fff;
  border: none;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s, transform 0.12s;
}

.btn-primary:hover {
  background: #2d3748;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(74, 85, 104, 0.3);
}

.btn-secondary {
  background: #fff;
  color: #4a5568;
  border: 1px solid #e2e8f0;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s, transform 0.12s;
}

.btn-secondary:hover {
  background: #f7fafc;
  border-color: #cbd5e1;
  transform: translateY(-2px);
}

.btn-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.btn-danger {
  background: #c00;
  color: #fff;
  border-color: #c00;
}

.btn-danger:hover {
  background: #a00;
}

.btn-small {
  padding: 4px 8px;
  font-size: 10px;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 6px;
  font-size: 9px;
  font-weight: 600;
  border-radius: 2px;
  text-transform: uppercase;
}

.badge-success {
  background: #d4edda;
  color: #155724;
}

.badge-warning {
  background: #fff3cd;
  color: #856404;
}

.badge-danger {
  background: #f8d7da;
  color: #721c24;
}

.badge-info {
  background: #d1ecf1;
  color: #0c5460;
}

.badge-neutral {
  background: #e5e5e5;
  color: #333;
}

.badge-purple {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  color: white;
}

/* 企业产品 - 蓝色 */
.badge-enterprise-product {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: white;
}

/* 外站课程 - 绿色 */
.badge-external-course {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
}

/* 企业内训 - 橙色 */
.badge-enterprise-internal {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  color: white;
}

/* GitHub 仓库 - 黑色渐变（贴近 GitHub 品牌色 #24292e → #0d1117） */
.badge-github-repo {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  background: linear-gradient(135deg, #24292e 0%, #0d1117 100%);
  color: white;
}

/* 开源产品 - 紫色渐变（开源/自由软件常见色） */
.badge-open-source {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
  color: white;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 30px 16px;
  color: #999;
  font-size: 12px;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 3px;
  margin-bottom: 12px;
  border-bottom: 1px solid #ddd;
  padding-bottom: 6px;
}

.tab-btn {
  padding: 5px 10px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  background: transparent;
  color: #666;
}

.tab-btn:hover {
  background: #e5e5e5;
}

.tab-btn.active {
  background: #555;
  color: #fff;
}

/* Message */
.message {
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  font-size: 12px;
}

.message.success {
  background: #d4edda;
  color: #155724;
}

.message.error {
  background: #f8d7da;
  color: #721c24;
}

/* Table Actions */
.table-actions {
  display: flex;
  gap: 4px;
}

.btn-edit {
  padding: 3px 8px;
  background: #e5e5e5;
  color: #333;
  border: none;
  border-radius: 2px;
  font-size: 10px;
  cursor: pointer;
  text-decoration: none;
}

.btn-edit:hover {
  background: #999;
  color: #fff;
}

.btn-delete {
  padding: 3px 8px;
  background: #e5e5e5;
  color: #333;
  border: none;
  border-radius: 2px;
  font-size: 10px;
  cursor: pointer;
}

.btn-delete:hover {
  background: #c00;
  color: #fff;
}

/* Overview specific */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.overview-section {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 12px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.section-header h3 {
  font-size: 12px;
  font-weight: 600;
  color: #333;
  margin: 0;
}

.section-link {
  font-size: 10px;
  color: #666;
  text-decoration: none;
}

.section-link:hover {
  color: #333;
}

.item-list {
  font-size: 11px;
}

.item {
  padding: 8px 0;
  border-bottom: 1px solid #eee;
}

.item:last-child {
  border-bottom: none;
}

.item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3px;
}

.item-title {
  font-weight: 500;
  color: #333;
}

.item-meta {
  color: #888;
  font-size: 10px;
  margin-bottom: 2px;
}

.item-footer {
  display: flex;
  justify-content: space-between;
  color: #666;
  font-size: 10px;
}

.status-tag {
  padding: 2px 6px;
  border-radius: 2px;
  font-size: 9px;
}

.status-tag.paid {
  background: #d4edda;
  color: #155724;
}

.status-tag.pending {
  background: #fff3cd;
  color: #856404;
}

.status-tag.failed {
  background: #f8d7da;
  color: #721c24;
}

/* Page load animations - 已移除 */

/* Responsive (sidebar 由 admin-sidebar.js 控制，width 用 CSS 变量；此层不再硬编码) */
@media (max-width: 1100px) {
  .overview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .overview-grid {
    grid-template-columns: 1fr;
  }
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* API Documentation Styles */
.api-section {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

/* api-section 入场动画已移除 */

.api-section h2 {
  font-size: 18px;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #6366f1;
  display: inline-block;
}

.api-item {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 8px;
  margin-bottom: 10px;
  background: #f9fafb;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s;
  border: 1px solid transparent;
}

.api-item:hover {
  background: #fff;
  border-color: #e5e7eb;
  transform: translateX(4px);
}

.api-method {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  border-radius: 6px;
  min-width: 72px;
  letter-spacing: 0.5px;
}

.api-method.GET {
  background: #ecfdf5;
  color: #059669;
}

.api-method.POST {
  background: #dbeafe;
  color: #2563eb;
}

.api-method.PUT {
  background: #fef3c7;
  color: #d97706;
}

.api-method.DELETE {
  background: #fef2f2;
  color: #dc2626;
}

.api-path {
  font-family: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
  font-size: 13px;
  color: #1f2937;
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
  padding: 6px 12px;
  border-radius: 6px;
  font-weight: 500;
}

.api-auth {
  font-size: 12px;
  color: #6b7280;
  margin-left: auto;
  font-weight: 500;
}

.api-desc {
  width: 100%;
  font-size: 13px;
  color: #4b5563;
  margin-top: 10px;
  margin-left: 0;
  line-height: 1.6;
}

/* API Table */
.api-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
}

.api-table th {
  background: #f3f4f6;
  padding: 10px 12px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: #374151;
  border-bottom: 1px solid #e5e7eb;
}

.api-table td {
  padding: 10px 12px;
  font-size: 13px;
  color: #4b5563;
  border-bottom: 1px solid #f3f4f6;
}

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

.api-table tr:hover td {
  background: #f9fafb;
}

/* Code Block */
.code-block {
  width: 100%;
  background: #1f2937;
  border-radius: 8px;
  padding: 16px;
  margin-top: 12px;
  font-family: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
  font-size: 12px;
  color: #e5e7eb;
  overflow-x: auto;
  line-height: 1.7;
}

.code-block .comment {
  color: #6b7280;
}

.code-block .key {
  color: #60a5fa;
}

.code-block .number {
  color: #34d399;
}

.code-block .string {
  color: #fbbf24;
}

/* Admin Settings - Brutally Minimal */
.admin-main > h1 {
  font-size: 28px;
  font-weight: 300;
  color: #111827;
  letter-spacing: -0.5px;
  margin-bottom: 32px;
}

.admin-settings .form-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.admin-settings .form-section {
  padding: 32px;
  border-bottom: 1px solid #f3f4f6;
}

.admin-settings .form-section:last-child {
  border-bottom: none;
}

.admin-settings .section-title {
  font-size: 14px;
  font-weight: 600;
  color: #111827;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
  position: relative;
  display: inline-block;
}

.admin-settings .section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 24px;
  height: 2px;
  background: #111827;
}

.admin-settings .form-group {
  margin-bottom: 24px;
}

.admin-settings .form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 8px;
}

.admin-settings .form-group input,
.admin-settings .form-group select,
.admin-settings .form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 14px;
  color: #111827;
  background: #fafafa;
  transition: all 0.2s ease;
}

.admin-settings .form-group input:focus,
.admin-settings .form-group select:focus,
.admin-settings .form-group textarea:focus {
  outline: none;
  border-color: #111827;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(17, 24, 39, 0.05);
}

.admin-settings .form-group input::placeholder,
.admin-settings .form-group textarea::placeholder {
  color: #9ca3af;
}

/* Logo Upload */
.admin-settings .logo-upload {
  display: flex;
  align-items: center;
  gap: 24px;
}

.admin-settings .logo-preview {
  width: 120px;
  height: 60px;
  border: 2px dashed #e5e7eb;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fafafa;
  overflow: hidden;
}

.admin-settings .logo-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.admin-settings .logo-preview .placeholder {
  font-size: 12px;
  color: #9ca3af;
}

.admin-settings .upload-btn {
  padding: 12px 24px;
  background: #111827;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.admin-settings .upload-btn:hover {
  background: #000;
  transform: translateY(-1px);
}

/* Buttons */
.admin-settings .btn {
  padding: 14px 28px;
  background: #111827;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s;
}

.admin-settings .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(17, 24, 39, 0.15);
}

.admin-settings .btn:active {
  transform: translateY(0);
}

.admin-settings .btn-success {
  background: #059669;
}

.admin-settings .btn-success:hover {
  background: #047857;
  box-shadow: 0 8px 20px rgba(5, 150, 105, 0.2);
}

/* Message */
.admin-settings .message {
  padding: 16px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
  animation: slideDown 0.15s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.admin-settings .message.success {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.admin-settings .message.error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

/* Settings Page - Dark Theme */
.settings-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 0;
}

.settings-page > * {
}

/* settings-page 入场 stagger 已移除 */

.settings-page .page-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.settings-page .page-desc {
  color: #718096;
  margin-bottom: 32px;
  font-size: 15px;
}

.settings-page .settings-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 24px;
  transition: all 0.15s ease;
}

.settings-page .settings-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  transform: translateY(-4px);
}

.settings-page .settings-group {
  padding: 20px 24px;
  border-bottom: 1px solid #222;
}

.settings-page .settings-group:last-child {
  border-bottom: none;
}

.settings-page .settings-heading {
  font-size: 13px;
  font-weight: 600;
  color: #4a5568;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  position: relative;
  display: inline-block;
}

.settings-page .settings-heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 24px;
  height: 3px;
  background: #4a5568;
  border-radius: 2px;
}

.settings-page .field {
  margin-bottom: 20px;
}

.settings-page .field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #2d3748;
  margin-bottom: 8px;
}

.settings-page .field input,
.settings-page .field select,
.settings-page .field textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  font-size: 15px;
  color: #1a202c;
  background: #fff;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s;
}

.settings-page .field input:focus,
.settings-page .field select:focus,
.settings-page .field textarea:focus {
  outline: none;
  border-color: #4a5568;
  box-shadow: 0 0 0 4px rgba(74, 85, 104, 0.15);
}

.settings-page .field input::placeholder,
.settings-page .field textarea::placeholder {
  color: #a0aec0;
}

.settings-page .field-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
}

.settings-page .field-hint {
  font-size: 12px;
  color: #6b7280;
  margin-top: 6px;
}

/* Alert Messages - Dark Theme */
.settings-page .alert {
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
  display: none;
  animation: slideDown 0.15s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.settings-page .alert-success {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
}

.settings-page .alert-error {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

/* Logo Area */
.settings-page .logo-area {
  display: flex;
  align-items: center;
  gap: 20px;
}

.settings-page .logo-thumb {
  width: 120px;
  height: 60px;
  border: 2px dashed #e5e7eb;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fafafa;
  overflow: hidden;
}

.settings-page .logo-thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.settings-page .logo-thumb .empty-text {
  font-size: 12px;
  color: #9ca3af;
}

/* Theme Grid */
.settings-page .theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 16px;
}

.settings-page .theme-card {
  border: 2px solid #e5e7eb;
  border-radius: 10px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.settings-page .theme-card:hover {
  border-color: #9ca3af;
  transform: translateY(-2px);
}

.settings-page .theme-card.active {
  border-color: #111827;
  background: #f9fafb;
}

.settings-page .theme-swatch {
  width: 100%;
  height: 50px;
  border-radius: 6px;
  margin-bottom: 8px;
}

.settings-page .theme-label {
  font-size: 12px;
  color: #374151;
}

/* Form Actions */
.settings-page .form-actions-bar {
  padding: 20px 32px;
  background: #f9fafb;
  border-top: 1px solid #e5e7eb;
}

.settings-page .form-actions-back {
  padding: 16px 32px;
}

.settings-page .link-back {
  color: #6b7280;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.settings-page .link-back:hover {
  color: #111827;
}

/* Primary Button - Brutally Minimal */
.settings-page .btn-primary {
  padding: 12px 24px;
  background: #111827;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s;
}

.settings-page .btn-primary:hover {
  background: #000;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(17, 24, 39, 0.15);
}

.settings-page .btn-primary:active {
  transform: translateY(0);
}

/* Secondary Button */
.settings-page .btn-secondary {
  padding: 10px 18px;
  background: #f3f4f6;
  color: #374151;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.settings-page .btn-secondary:hover {
  background: #e5e7eb;
  border-color: #d1d5db;
}

/* Accent Button */
.settings-page .btn-accent {
  padding: 10px 18px;
  background: #111827;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.settings-page .btn-accent:hover {
  background: #000;
}

/* Security Page */
.settings-page .page-desc {
  color: #9ca3af;
  margin-bottom: 24px;
  font-size: 14px;
}

.settings-page .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.settings-page .stat-box {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.settings-page .stat-num {
  font-size: 24px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 4px;
}

.settings-page .stat-label {
  font-size: 12px;
  color: #9ca3af;
}

/* Blocked List */
.settings-page .blocked-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.settings-page .blocked-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: #f9fafb;
  border-radius: 6px;
  border: 1px solid #e5e7eb;
}

.settings-page .blocked-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.settings-page .blocked-ip {
  font-weight: 500;
  color: #111827;
}

.settings-page .blocked-reason {
  font-size: 12px;
  color: #6b7280;
}

.settings-page .blocked-time {
  font-size: 11px;
  color: #9ca3af;
}

.settings-page .empty-text {
  color: #9ca3af;
  font-size: 13px;
}

/* Log */
.settings-page .log-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.settings-page .log-tab {
  padding: 8px 16px;
  background: #f3f4f6;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.settings-page .log-tab.active {
  background: #111827;
  color: #fff;
}

.settings-page .log-content {
  display: none;
}

.settings-page .log-content.active {
  display: block;
}

.settings-page .log-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.settings-page .log-toolbar select {
  flex: 1;
  padding: 8px;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  font-size: 13px;
}

.settings-page .log-container {
  max-height: 300px;
  overflow-y: auto;
  background: #fafafa;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  padding: 12px;
  font-size: 12px;
  font-family: monospace;
  line-height: 1.6;
}