/* admin.css - 后台管理系统样式 */

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

:root {
  --primary-color: #e94560;
  --primary-dark: #c73e54;
  --secondary-color: #1a1a2e;
  --accent-color: #16213e;
  --text-color: #333;
  --text-light: #666;
  --text-lighter: #999;
  --bg-color: #f5f7fa;
  --white: #fff;
  --border-color: #e8e8e8;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --sidebar-width: 260px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

/* 登录页面 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
}

.login-card {
  width: 400px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  padding: 48px 40px;
}

.login-header {
  text-align: center;
  margin-bottom: 40px;
}

.login-logo {
  font-size: 64px;
  margin-bottom: 16px;
}

.login-header h1 {
  font-size: 24px;
  color: var(--secondary-color);
  margin-bottom: 8px;
}

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

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

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

.login-form input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 15px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.1);
}

.btn-login {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary-color), #ff6b6b);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.35);
}

.login-tip {
  margin-top: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-lighter);
}

/* 管理页面布局 */
.admin-page {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--accent-color) 100%);
  color: var(--white);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-header {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header .logo {
  font-size: 32px;
}

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

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 14px 24px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: all 0.3s;
  margin: 4px 12px;
  border-radius: 8px;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

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

.nav-item .icon {
  font-size: 20px;
  margin-right: 12px;
}

.nav-item .text {
  font-size: 15px;
}

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

.btn-logout {
  width: 100%;
  padding: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-logout:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
}

.topbar {
  height: 64px;
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 50;
}

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

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

.user-name {
  color: var(--text-light);
}

.user-avatar {
  font-size: 24px;
}

.content-wrapper {
  flex: 1;
  padding: 24px 32px;
}

/* 页面内容 */
.page-content {
  display: none;
}

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

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 20px;
}

.stat-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-color), #ff6b6b);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-color);
}

.stat-label {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 4px;
}

/* 最近产品 */
.recent-section {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.recent-section h3 {
  font-size: 18px;
  margin-bottom: 20px;
}

.recent-products {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.recent-item {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}

.recent-item-image {
  width: 80px;
  height: 80px;
  background: #f0f0f0;
  border-radius: 8px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.recent-item-name {
  font-size: 14px;
  color: var(--text-color);
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recent-item-price {
  color: var(--primary-color);
  font-weight: 600;
}

/* 页面头部 */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h2 {
  font-size: 20px;
}

/* 按钮 */
.btn-primary {
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--primary-color), #ff6b6b);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.35);
}

.btn-secondary {
  padding: 10px 20px;
  background: var(--bg-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-secondary:hover {
  background: #e8e8e8;
}

.btn-danger {
  padding: 10px 20px;
  background: #dc3545;
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}

.btn-danger:hover {
  background: #c82333;
}

/* 筛选栏 */
.filter-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.filter-bar select,
.filter-bar input {
  padding: 10px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  min-width: 200px;
}

.filter-bar input {
  flex: 1;
  max-width: 300px;
}

/* 产品表格 */
.product-table-wrapper {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.product-table {
  width: 100%;
  border-collapse: collapse;
}

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

.product-table th {
  background: #f8f9fa;
  font-weight: 600;
  color: var(--text-light);
  font-size: 13px;
  text-transform: uppercase;
}

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

.product-table tbody tr:hover {
  background: #f8f9fa;
}

.product-thumb {
  width: 60px;
  height: 60px;
  background: #f0f0f0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.product-name {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-price {
  color: var(--primary-color);
  font-weight: 600;
}

.product-status {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
}

.product-status.online {
  background: #d4edda;
  color: #155724;
}

.product-status.offline {
  background: #f8d7da;
  color: #721c24;
}

.action-btns {
  display: flex;
  gap: 8px;
}

.action-btn {
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: opacity 0.3s;
}

.action-btn:hover {
  opacity: 0.8;
}

.action-btn.edit {
  background: #e3f2fd;
  color: #1976d2;
}

.action-btn.delete {
  background: #ffebee;
  color: #d32f2f;
}

/* 分类网格 */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 16px;
}

.category-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.category-info {
  flex: 1;
}

.category-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

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

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

/* 导出区域 */
.export-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.export-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  text-align: center;
}

.export-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.export-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.export-card p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
}

/* 弹窗 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius);
  width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content.modal-large {
  width: 680px;
}

.modal-content.modal-small {
  width: 400px;
}

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

.modal-header h3 {
  font-size: 18px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-lighter);
  cursor: pointer;
}

.modal-body {
  padding: 24px;
}

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

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-row {
  display: flex;
  gap: 20px;
}

.form-row .form-group {
  flex: 1;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
}

/* Toast */
.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--secondary-color);
  color: var(--white);
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 2000;
  transition: transform 0.3s;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  background: #28a745;
}

.toast.error {
  background: #dc3545;
}

/* 响应式 */
@media (max-width: 1200px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .recent-products {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .export-section {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 200px;
  }
  
  .main-content {
    margin-left: 200px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .category-grid,
  .export-section {
    grid-template-columns: 1fr;
  }
}