/* 商业级 SaaS 通用 UI 组件样式 (Linear / Vercel Grade) */

/* 1. 按钮系统 Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #041017;
  font-weight: 600;
  border: 1px solid rgba(6, 182, 212, 0.4);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 0 12px rgba(6, 182, 212, 0.2);
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4), 0 0 20px rgba(6, 182, 212, 0.4);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background-color: var(--bg-surface-hover);
  border-color: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn-ghost:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-main);
}

.btn-danger {
  background-color: var(--bg-danger-subtle);
  color: var(--color-danger);
  border: 1px solid var(--border-danger);
}
.btn-danger:hover {
  background-color: var(--color-danger);
  color: #ffffff;
  border-color: var(--color-danger);
  box-shadow: 0 0 12px rgba(244, 63, 94, 0.3);
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.btn-block {
  width: 100%;
}

/* SVG 图标样式 */
.svg-icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: middle;
}
.svg-icon-sm {
  width: 14px;
  height: 14px;
}
.svg-icon-lg {
  width: 20px;
  height: 20px;
}

/* 2. 表单元素 Inputs & Selects */
.input-text, .input-select, .input-textarea {
  background-color: var(--bg-dark);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  width: 100%;
}

.input-text:focus, .input-select:focus, .input-textarea:focus {
  border-color: var(--border-focus);
  background-color: rgba(6, 182, 212, 0.03);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.input-select-sm {
  padding: 5px 10px;
  font-size: 12px;
  background-color: var(--bg-dark);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

/* 3. 状态 Badge & Tag Pills */
.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
}
.badge-tag::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.tag-pub-green {
  background-color: var(--bg-success-subtle);
  color: var(--color-success);
  border: 1px solid var(--border-success);
}
.tag-pub-green::before {
  background-color: var(--color-success);
  box-shadow: 0 0 6px var(--color-success);
}

.tag-pub-draft {
  background-color: var(--bg-warning-subtle);
  color: var(--color-warning);
  border: 1px solid var(--border-warning);
}
.tag-pub-draft::before {
  background-color: var(--color-warning);
  box-shadow: 0 0 6px var(--color-warning);
}

.tag-pub-pending {
  background-color: var(--bg-danger-subtle);
  color: var(--color-danger);
  border: 1px solid var(--border-danger);
}
.tag-pub-pending::before {
  background-color: var(--color-danger);
  box-shadow: 0 0 6px var(--color-danger);
}

.tag-user-muscle {
  background-color: var(--primary-subtle);
  color: var(--primary);
  border: 1px solid var(--primary-border);
}
.tag-user-muscle::before {
  background-color: var(--primary);
  box-shadow: 0 0 6px var(--primary);
}

.chip-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
}
.chip-tag i {
  cursor: pointer;
  color: var(--text-muted);
  font-style: normal;
}
.chip-tag i:hover {
  color: var(--color-danger);
}

/* 4. 表格 System (精简降密，Row Hover) */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-card);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

.data-table th {
  background-color: var(--bg-dark);
  color: var(--text-secondary);
  font-weight: 500;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color 0.15s ease;
}

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

/* 5. Skeleton 骨架屏 */
.skeleton-row {
  height: 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  margin: 8px 0;
}

/* 6. 空状态 Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  color: var(--text-muted);
  text-align: center;
}
.empty-state-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
  stroke: var(--text-muted);
  opacity: 0.5;
}
.empty-state-text {
  font-size: 13px;
}

/* 7. Overlay / Drawer / Modal */
.drawer-overlay, .modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(4, 8, 15, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background-color: var(--bg-overlay);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-overlay);
  width: 100%;
  max-width: 520px;
  padding: 24px;
  animation: slideUp 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from { transform: translateY(12px) scale(0.98); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}
.modal-header h3 {
  font-size: var(--font-size-h2);
  color: var(--text-main);
  font-weight: 600;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-xs);
  transition: color 0.15s ease;
}
.modal-close-btn:hover {
  color: var(--text-main);
}

.drawer-card {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 100%;
  max-width: 840px;
  background-color: var(--bg-overlay);
  border-left: 1px solid var(--border-color);
  box-shadow: var(--shadow-overlay);
  display: flex;
  flex-direction: column;
  z-index: 1001;
  animation: slideInRight 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

/* 8. Toast 通知 */
#toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast-item {
  min-width: 280px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-overlay);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.toast-item.toast-success {
  border-color: var(--border-success);
  background-color: rgba(16, 185, 129, 0.14);
  color: var(--color-success);
}

.toast-item.toast-error {
  border-color: var(--border-danger);
  background-color: rgba(244, 63, 94, 0.14);
  color: var(--color-danger);
}

/* 9. 分类筛选 Pills */
.category-pills-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.user-cat-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-secondary);
  transition: all 0.15s ease;
  white-space: nowrap;
  user-select: none;
}

.user-cat-pill:hover {
  background: var(--bg-surface-hover);
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.16);
}

.user-cat-pill.active {
  background: var(--primary);
  color: #041017;
  font-weight: 600;
  border-color: var(--primary);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.35);
}