/**
 * 茶九度茶饮培训 - 后台管理统一样式
 * Admin Panel Unified Styles
 */

/* ========== 重置和基础 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg-page);
  color: var(--color-text-primary);
  min-height: 100vh;
}

.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* ========== 侧边栏 ========== */
.admin-sidebar {
  width: 240px;
  background: linear-gradient(180deg, #1a1a1a 0%, #252525 100%);
  color: #fff;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-nav {
  padding: 12px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
  font-size: 14px;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.nav-item.active {
  background: rgba(255, 107, 53, 0.12);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.nav-icon {
  width: 20px;
  font-size: 16px;
  text-align: center;
  flex-shrink: 0;
}

/* ========== 主内容区 ========== */
.admin-main {
  flex: 1;
  margin-left: 240px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-header {
  background: var(--color-bg-white);
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.admin-body {
  flex: 1;
  padding: 24px;
}

/* ========== 统计卡片 ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--color-bg-white);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-left: 4px solid var(--color-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.stat-info h3 {
  font-size: 13px;
  color: var(--color-text-tertiary);
  margin-bottom: 8px;
  font-weight: 400;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-primary);
  font-family: var(--font-family-number);
}

.stat-change {
  font-size: 12px;
  color: var(--color-success);
  margin-top: 4px;
}

.stat-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-cream);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

/* ========== 内容卡片 ========== */
.content-card {
  background: var(--color-bg-white);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

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

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

.card-body {
  padding: 20px;
}

/* ========== 搜索和筛选 ========== */
.search-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
  height: 40px;
  padding: 0 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus {
  border-color: var(--color-primary);
}

.filter-select {
  height: 40px;
  padding: 0 32px 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 14px;
  background: var(--color-bg-white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E") no-repeat right 12px center;
  appearance: none;
  cursor: pointer;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

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

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

.btn-secondary {
  background: var(--color-bg-page);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border-light);
}

.btn-sm {
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
}

/* ========== 表格 ========== */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.data-table th {
  background: var(--color-bg-page);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.data-table td {
  font-size: 14px;
}

.data-table tbody tr:hover {
  background: rgba(255, 107, 53, 0.02);
}

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

.tab {
  padding: 12px 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.2s;
}

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

.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 500;
}

/* ========== 状态标签 ========== */
.status-tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 4px;
  font-weight: 500;
}

.status-tag.success {
  background: rgba(82, 196, 26, 0.1);
  color: #52c41a;
}

.status-tag.warning {
  background: rgba(250, 173, 20, 0.1);
  color: #faad14;
}

.status-tag.error {
  background: rgba(255, 77, 79, 0.1);
  color: #ff4d4f;
}

.status-tag.info {
  background: rgba(24, 144, 255, 0.1);
  color: #1890ff;
}

/* ========== 分页 ========== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
}

.page-btn {
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg-white);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

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

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

/* ========== 用户/商品项 ========== */
.item-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.item-avatar {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--color-bg-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.item-avatar.round {
  border-radius: 50%;
}

.item-name {
  font-weight: 500;
  color: var(--color-text-primary);
}

.item-meta {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}

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

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

.form-input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus {
  border-color: var(--color-primary);
}

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

/* ========== 空状态 ========== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-tertiary);
}

.empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-text {
  font-size: 14px;
}