/* ================================
   组件样式 - UI Components
   ================================ */

/* ================================
   按钮
   ================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(8px * var(--density-scale));
  padding: calc(8px * var(--density-scale)) calc(16px * var(--density-scale));
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-control);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}

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

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

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

.btn-default {
  background-color: var(--card-bg);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-default:hover {
  background-color: var(--hover-bg);
  border-color: var(--text-tertiary);
}

.btn-danger {
  background-color: #ef4444;
  color: white;
}

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

.btn-success {
  background-color: #22c55e;
  color: white;
}

.btn-success:hover {
  background-color: #16a34a;
}

.btn-warning {
  background-color: #f59e0b;
  color: white;
}

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

.btn-info {
  background-color: #3b82f6;
  color: white;
}

.btn-info:hover {
  background-color: #2563eb;
}

.btn-sm {
  padding: calc(4px * var(--density-scale)) calc(12px * var(--density-scale));
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: 12px 24px;
  font-size: var(--font-size-base);
}

.btn-icon {
  width: calc(36px * var(--density-scale));
  height: calc(36px * var(--density-scale));
  padding: 0;
}

.btn-icon.btn-sm {
  width: calc(28px * var(--density-scale));
  height: calc(28px * var(--density-scale));
}

/* ================================
   卡片
   ================================ */

:root[data-density="ultra"] .btn {
  min-height: 24px;
  padding: 2px 8px;
  font-size: 11px;
}

:root[data-density="ultra"] .table th,
:root[data-density="ultra"] .table td {
  padding: 4px 6px;
  font-size: 11px;
}

:root[data-density="ultra"] .form-input {
  height: 26px;
  padding: 0 6px;
  font-size: 11px;
}

:root[data-density="ultra"] .card-header {
  padding: 6px 8px;
}

:root[data-density="ultra"] .card-body {
  padding: 8px;
}

:root[data-density="ultra"] .modal-header,
:root[data-density="ultra"] .modal-body,
:root[data-density="ultra"] .modal-footer {
  padding: 6px 8px;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-box);
  overflow: hidden;
}

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

.card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: calc(20px * var(--density-scale));
}

.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-color-secondary);
}

/* ================================
   表格
   ================================ */

.table-container {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  line-height: 1.35;
}

.table th,
.table td {
  padding: calc(12px * var(--density-scale)) calc(16px * var(--density-scale));
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  font-weight: 600;
  color: var(--text-primary);
  background-color: var(--bg-color-secondary);
}

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

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

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

:root[data-density="ultra"] .table-actions {
  gap: 4px;
}

:root[data-density="ultra"] .pagination-item {
  min-width: 22px;
  height: 22px;
  font-size: 10px;
  padding: 0 4px;
}

/* 表格分页 */
.table-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(16px * var(--density-scale)) 0;
}

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

.pagination {
  display: flex;
  gap: 4px;
}

.pagination-item {
  min-width: calc(32px * var(--density-scale));
  height: calc(32px * var(--density-scale));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-tag);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-item:hover:not(.disabled):not(.active) {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.pagination-item.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

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

/* ================================
   表单
   ================================ */

.form-group {
  margin-bottom: calc(16px * var(--density-scale));
}

.form-label {
  display: block;
  margin-bottom: calc(6px * var(--density-scale));
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.form-label.required::after {
  content: '*';
  color: #ef4444;
  margin-left: 4px;
}

.form-input {
  width: 100%;
  height: calc(40px * var(--density-scale));
  padding: 0 calc(12px * var(--density-scale));
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  transition: all var(--transition-fast);
}

.form-input:hover {
  border-color: var(--text-tertiary);
}

.form-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-input.error {
  border-color: #ef4444;
}

.form-input.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-textarea {
  min-height: 100px;
  padding: 12px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2364748b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 36px;
}

.form-hint {
  margin-top: calc(4px * var(--density-scale));
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.form-error {
  margin-top: calc(4px * var(--density-scale));
  font-size: var(--font-size-xs);
  color: #ef4444;
}

/* 复选框和单选框 */
.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.form-check-input {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.form-check-label {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  cursor: pointer;
}

/* 开关 */
.switch {
  position: relative;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  inset: 0;
  background-color: var(--border-color);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.switch-slider::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  left: 3px;
  top: 3px;
  background-color: white;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

.switch input:checked + .switch-slider {
  background-color: var(--primary-color);
}

.switch input:checked + .switch-slider::before {
  transform: translateX(20px);
}

/* ================================
   标签页
   ================================ */

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  gap: 4px;
}

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

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

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

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ================================
   徽章
   ================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--border-radius-full);
}

.badge-primary {
  background-color: var(--primary-color-light);
  color: var(--primary-color);
}

.badge-success {
  background-color: #dcfce7;
  color: #16a34a;
}

.badge-warning {
  background-color: #fef3c7;
  color: #d97706;
}

.badge-danger {
  background-color: #fee2e2;
  color: #dc2626;
}

.badge-info {
  background-color: #dbeafe;
  color: #2563eb;
}

[data-theme="dark"] .badge-success {
  background-color: rgba(34, 197, 94, 0.15);
  color: #4ade80;
}

[data-theme="dark"] .badge-warning {
  background-color: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
}

[data-theme="dark"] .badge-danger {
  background-color: rgba(239, 68, 68, 0.15);
  color: #f87171;
}

[data-theme="dark"] .badge-info {
  background-color: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

/* ================================
   对话框 / 模态框
   ================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

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

.modal {
  background-color: var(--card-bg);
  border-radius: var(--radius-box);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-fast);
  z-index: var(--z-modal);
}

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

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

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  border-radius: var(--radius-tag);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
}

.modal-body {
  padding: calc(20px * var(--density-scale));
  overflow-y: auto;
}

.modal-footer {
  padding: calc(12px * var(--density-scale)) calc(20px * var(--density-scale));
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* 抽屉 */
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 400px;
  height: 100vh;
  background-color: var(--card-bg);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.drawer.show {
  transform: translateX(0);
}

.drawer-header {
  padding: calc(16px * var(--density-scale)) calc(20px * var(--density-scale));
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-body {
  padding: calc(20px * var(--density-scale));
  height: calc(100vh - 60px);
  overflow-y: auto;
}

/* ================================
   空状态
   ================================ */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.empty-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 16px;
  color: var(--text-tertiary);
}

.empty-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.empty-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* ================================
   加载状态
   ================================ */

.loading-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-notification);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-color-secondary) 25%, var(--hover-bg) 50%, var(--bg-color-secondary) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-tag);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ================================
   进度条
   ================================ */

.progress {
  height: 8px;
  background-color: var(--bg-color-tertiary);
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary-color);
  border-radius: var(--border-radius-full);
  transition: width var(--transition-normal);
}

/* ================================
   头像
   ================================ */

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  overflow: hidden;
  flex-shrink: 0;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-text {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-hover));
  color: white;
  font-weight: 600;
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 56px; height: 56px; }
.avatar-xl { width: 80px; height: 80px; }

/* ================================
   标签
   ================================ */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  background-color: var(--bg-color-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius-tag);
  border: 1px solid var(--border-color);
}

.tag-close {
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.7;
}

.tag-close:hover {
  opacity: 1;
}

/* ================================
   分割线
   ================================ */

.divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 16px 0;
}

.divider-vertical {
  width: 1px;
  height: 20px;
  background-color: var(--border-color);
  margin: 0 8px;
}

/* ================================
   步骤条
   ================================ */

.steps {
  display: flex;
  align-items: center;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
}

.step::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  width: 100%;
  height: 2px;
  background: var(--border-color);
}

.step:last-child::before {
  display: none;
}

.step-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-color-secondary);
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.step.active .step-icon,
.step.completed .step-icon {
  background: var(--primary-color);
  color: white;
}

.step.completed::before {
  background: var(--primary-color);
}

.step-label {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.step.active .step-label {
  color: var(--primary-color);
  font-weight: 500;
}

/* ================================
   时间线
   ================================ */

.timeline {
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-bottom: 24px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -18px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary-color);
  border: 2px solid var(--bg-color);
}

.timeline-title {
  font-weight: 500;
  color: var(--text-primary);
}

.timeline-time {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* ================================
   进度条状态色
   ================================ */

.progress-bar.progress-success { background-color: #22c55e; }
.progress-bar.progress-warning { background-color: #f59e0b; }
.progress-bar.progress-danger { background-color: #ef4444; }

/* ================================
   标签状态色
   ================================ */

.tag-success { background-color: #dcfce7; color: #16a34a; }
.tag-warning { background-color: #fef3c7; color: #d97706; }
.tag-danger { background-color: #fee2e2; color: #dc2626; }

/* ================================
   带文字分割线
   ================================ */

.divider-text {
  text-align: center;
  position: relative;
}

.divider-text::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-color);
}

.divider-text span {
  position: relative;
  background: var(--card-bg);
  padding: 0 16px;
  color: var(--text-tertiary);
}

/* ================================
   Alert / 描述列表 / 下拉
   ================================ */

.alert {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  padding: 10px 12px;
  border-radius: var(--radius-control);
}

.alert-info { border-color: #bfdbfe; background: #eff6ff; }
.alert-success { border-color: #bbf7d0; background: #f0fdf4; }
.alert-warning { border-color: #fde68a; background: #fffbeb; }
.alert-danger { border-color: #fecaca; background: #fef2f2; }

.alert-title { font-weight: 600; font-size: var(--font-size-sm); }
.alert-desc { font-size: var(--font-size-xs); color: var(--text-secondary); margin-top: 2px; }
.alert-close { font-size: 16px; color: var(--text-tertiary); }

.descriptions {
  display: grid;
  gap: 8px 12px;
}

.descriptions-item {
  display: flex;
  gap: 8px;
  border-bottom: 1px dashed var(--border-color-light);
  padding-bottom: 6px;
}

.descriptions-label {
  color: var(--text-tertiary);
  min-width: 90px;
}

.descriptions-value {
  color: var(--text-primary);
  flex: 1;
}

.ui-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
}

.ui-breadcrumb-item { color: var(--text-secondary); }
.ui-breadcrumb-item.active { color: var(--text-primary); font-weight: 600; }
.ui-breadcrumb-sep { color: var(--text-tertiary); }

.radio-group,
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.date-range {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.ui-dropdown {
  position: relative;
  display: inline-block;
}

.ui-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  min-width: 120px;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: var(--radius-control);
  box-shadow: var(--shadow-md);
  display: none;
  z-index: var(--z-dropdown);
}

.ui-dropdown-menu.show { display: block; }

.ui-dropdown-item {
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  font-size: var(--font-size-sm);
}

.ui-dropdown-item:hover { background: var(--hover-bg); }

/* ================================
   Result / Toolbar / Batch / Advanced Search
   ================================ */

.result {
  text-align: center;
  padding: 20px 12px;
}

.result-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 10px;
  color: var(--primary-color);
}

.result-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.result-desc {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.result-extra {
  margin-top: 10px;
}

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.table-toolbar-left,
.table-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.batch-actions-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  background: var(--bg-color-secondary);
  margin-bottom: 8px;
}

.batch-actions-bar.show {
  display: flex;
}

.batch-count {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

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

.advanced-search {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  background: var(--card-bg);
  padding: 10px;
  margin-bottom: 10px;
}

.advanced-search-fields {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.advanced-search-actions {
  margin-top: 8px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

:root[data-density="ultra"] .advanced-search-fields {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 4px;
}

:root[data-density="ultra"] .table-toolbar {
  margin-bottom: 6px;
}

:root[data-density="ultra"] .batch-actions-bar {
  padding: 4px 6px;
}

/* ================================
   Segmented / Statistic / Collapse / DrawerForm
   ================================ */

.segmented {
  display: inline-flex;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  overflow: hidden;
  background: var(--bg-color-secondary);
}

.segmented-item {
  padding: 6px 10px;
  font-size: var(--font-size-sm);
  border-right: 1px solid var(--border-color);
}

.segmented-item:last-child { border-right: none; }
.segmented-item.active { background: var(--primary-color); color: #fff; }

.statistic {
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  background: var(--card-bg);
}

.statistic-title {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.statistic-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.statistic-trend {
  margin-top: 4px;
  font-size: var(--font-size-xs);
}

.statistic-trend.up { color: #16a34a; }
.statistic-trend.down { color: #dc2626; }

.skeleton-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-box);
  padding: 12px;
}

.collapse {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  overflow: hidden;
}

.collapse-header {
  width: 100%;
  padding: 8px 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-color-secondary);
  font-size: var(--font-size-sm);
}

.collapse-body {
  display: none;
  padding: 10px;
}

.collapse-body.show { display: block; }

.drawer-form-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: 8px;
}

.drawer-form-fields {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.drawer-form-actions {
  margin-top: 10px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

:root[data-density="ultra"] .segmented-item {
  padding: 3px 6px;
  font-size: 11px;
}

:root[data-density="ultra"] .statistic-value {
  font-size: 16px;
}

/* ================================
   Upload / EditableTable
   ================================ */

.upload-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

:root[data-density="ultra"] .upload-wrap {
  gap: 4px;
}

/* ================================
   Popover / Setting Panels
   ================================ */

.ui-popover {
  position: relative;
  display: inline-block;
}

.ui-popover-panel {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 6px;
  min-width: 160px;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: var(--radius-control);
  box-shadow: var(--shadow-md);
  padding: 8px 10px;
  display: none;
  z-index: var(--z-popover);
}

.ui-popover-panel.show {
  display: block;
}

.column-setting,
.field-setting {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  padding: 8px;
  background: var(--card-bg);
}

.field-setting-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border-color-light);
}

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

:root[data-density="ultra"] .field-setting-item {
  grid-template-columns: 90px 1fr;
  gap: 4px;
  padding: 3px 0;
}

/* ================================
   Tooltip
   ================================ */

.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  font-size: var(--font-size-xs);
  white-space: nowrap;
  background-color: var(--text-primary);
  color: var(--text-inverse);
  border-radius: var(--radius-tag);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-tooltip);
}

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