:root {
  /* BPM Admin 深色科技感主题 */
  --bg-primary: #0b0f17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.95);
  --bg-hover: rgba(59, 130, 246, 0.1);
  
  --border-primary: rgba(59, 130, 246, 0.2);
  --border-focus: rgba(59, 130, 246, 0.5);
  
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-accent: #3b82f6;
  
  --accent-primary: #3b82f6;
  --accent-secondary: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-purple: #8b5cf6;
  
  --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.25);
  
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  --sidebar-width: 260px;
  --header-height: 64px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

/* ===== Layout ===== */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-primary);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-purple));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}

.logo-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.logo-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
}

.nav-section {
  margin-bottom: 20px;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0 12px;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 2px;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
  border-left: 3px solid var(--accent-primary);
}

.nav-item i {
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.nav-item .arrow {
  margin-left: auto;
  font-size: 12px;
  transition: transform var(--transition-fast);
}

.nav-item.expanded .arrow {
  transform: rotate(90deg);
}

.nav-submenu {
  padding-left: 32px;
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-normal);
}

.nav-submenu.open {
  max-height: 200px;
}

.nav-subitem {
  padding: 8px 12px;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 13px;
  transition: all var(--transition-fast);
}

.nav-subitem:hover {
  color: var(--text-primary);
}

.nav-subitem.active {
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.08);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-primary);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
}

.user-details {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 12px;
  color: var(--text-muted);
}

.logout-btn {
  padding: 6px 10px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-danger);
  cursor: pointer;
  font-size: 12px;
  transition: all var(--transition-fast);
}

.logout-btn:hover {
  background: rgba(239, 68, 68, 0.2);
}

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

/* ===== Header ===== */
.top-header {
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.header-title {
  font-size: 20px;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.header-icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ===== Content Area ===== */
.content-area {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}

/* ===== Page Container ===== */
.page-container {
  max-width: 1400px;
  margin: 0 auto;
}

.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

.page-desc {
  color: var(--text-secondary);
}

/* ===== Cards ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

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

.card-title {
  font-size: 16px;
  font-weight: 600;
}

.card-body {
  padding: 20px;
}

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

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.stat-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-primary); }
.stat-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--accent-secondary); }
.stat-icon.orange { background: rgba(245, 158, 11, 0.15); color: var(--accent-warning); }
.stat-icon.red { background: rgba(239, 68, 68, 0.15); color: var(--accent-danger); }
.stat-icon.purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }

.stat-value {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-change {
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-change.up { color: var(--accent-secondary); }
.stat-change.down { color: var(--accent-danger); }

/* ===== Forms ===== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-label .required {
  color: var(--accent-danger);
  margin-left: 4px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: #2563eb;
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.15);
}

.btn-success {
  background: var(--accent-secondary);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background: #059669;
}

.btn-danger {
  background: var(--accent-danger);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #dc2626;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 24px;
  font-size: 16px;
}

/* ===== Tables ===== */
.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-primary);
}

.data-table th {
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.2);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table tbody tr:hover {
  background: var(--bg-hover);
}

.data-table .cell-actions {
  display: flex;
  gap: 8px;
}

/* ===== Tags/Badges ===== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.tag-blue {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
}

.tag-green {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-secondary);
}

.tag-orange {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-warning);
}

.tag-red {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
}

.tag-gray {
  background: rgba(107, 114, 128, 0.15);
  color: var(--text-muted);
}

/* ===== Filters ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-label {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.filter-input {
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  min-width: 140px;
}

.filter-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-top: 1px solid var(--border-primary);
  margin-top: 16px;
}

.pagination-info {
  font-size: 13px;
  color: var(--text-secondary);
}

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

.page-btn {
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.page-btn.active {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-lg {
  max-width: 800px;
}

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

.modal-title {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  max-height: calc(90vh - 140px);
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-primary);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ===== Login Page ===== */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0b0f17 0%, #1e1b4b 50%, #0b0f17 100%);
  padding: 20px;
}

.login-box {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

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

.login-logo-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-purple));
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
}

.login-logo h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 4px;
}

.login-logo p {
  color: var(--text-muted);
  font-size: 14px;
}

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

/* ===== Confirm Dialog ===== */
.confirm-content {
  text-align: center;
}

.confirm-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-warning);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
}

.confirm-icon.danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
}

.confirm-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.confirm-desc {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.confirm-details {
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 24px;
  text-align: left;
}

.confirm-detail-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-primary);
}

.confirm-detail-row:last-child {
  border-bottom: none;
}

.confirm-detail-label {
  color: var(--text-muted);
}

.confirm-detail-value {
  font-weight: 500;
}

.confirm-detail-value.highlight {
  color: var(--accent-primary);
  font-size: 18px;
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 0 auto 20px;
  color: var(--text-muted);
}

.empty-title {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 8px;
}

.empty-desc {
  color: var(--text-muted);
  font-size: 14px;
}

/* ===== Loading ===== */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 280px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success { border-left: 4px solid var(--accent-secondary); }
.toast.error { border-left: 4px solid var(--accent-danger); }
.toast.warning { border-left: 4px solid var(--accent-warning); }
.toast.info { border-left: 4px solid var(--accent-primary); }

/* ===== Tabs ===== */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border-primary);
  margin-bottom: 20px;
}

.tab {
  padding: 12px 20px;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
}

.tab:hover {
  color: var(--text-primary);
}

.tab.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

/* ===== Code Block ===== */
.code-block {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 13px;
  overflow-x: auto;
  color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-bar {
    flex-direction: column;
  }
  
  .filter-group {
    width: 100%;
  }
  
  .filter-input {
    width: 100%;
  }
  
  .modal {
    max-width: 100%;
    margin: 10px;
  }
}

/* ===== Hide/Show ===== */
.hidden {
  display: none !important;
}

/* ===== Config Display ===== */
.config-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--border-primary);
}

.config-info {
  flex: 1;
}

.config-name {
  font-weight: 500;
  margin-bottom: 4px;
}

.config-desc {
  font-size: 13px;
  color: var(--text-muted);
}

.config-value {
  display: flex;
  align-items: center;
  gap: 16px;
}

.config-current {
  font-family: monospace;
  font-size: 14px;
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.1);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}

.config-default {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Permission Matrix ===== */
.perm-matrix {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 1px;
  background: var(--border-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.perm-cell {
  background: var(--bg-card);
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.perm-cell.header {
  background: rgba(0, 0, 0, 0.3);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
}

.perm-cell.resource {
  justify-content: flex-start;
  font-size: 13px;
}

.perm-checkbox {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--accent-primary);
}