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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #f5f7fa;
  color: #333;
}

/* 登录页面 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 20px;
}

.login-box {
  background: white;
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-logo {
  text-align: center;
  margin-bottom: 30px;
}

.logo-icon {
  font-size: 48px;
  margin-bottom: 10px;
}

.login-logo h1 {
  font-size: 24px;
  color: #333;
  margin-bottom: 5px;
}

.login-logo p {
  color: #666;
  font-size: 14px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.form-group label {
  font-size: 14px;
  color: #666;
}

.form-group input {
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
}

.error-msg {
  color: #ef4444;
  font-size: 14px;
  text-align: center;
  padding: 10px;
  background: #fef2f2;
  border-radius: 8px;
}

.login-btn {
  padding: 14px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.demo-info {
  margin-top: 20px;
  text-align: center;
  color: #999;
  font-size: 12px;
}

/* 侧边栏 */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 240px;
  background: #1f2937;
  color: white;
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.3s;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid #374151;
}

.sidebar-header h2 {
  font-size: 18px;
}

.sidebar-nav {
  flex: 1;
  padding: 20px 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  color: #9ca3af;
  text-decoration: none;
  transition: all 0.3s;
}

.nav-item:hover {
  background: #374151;
  color: white;
}

.nav-item.active {
  background: #667eea;
  color: white;
}

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

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid #374151;
}

.user-info {
  font-size: 14px;
  color: #9ca3af;
  margin-bottom: 10px;
}

.logout-btn {
  display: block;
  color: #ef4444;
  text-decoration: none;
  font-size: 14px;
}

/* 主内容区 */
.main-content {
  margin-left: 240px;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  background: white;
  padding: 15px 30px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #e5e7eb;
  z-index: 50;
}

.toggle-sidebar {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  margin-right: 15px;
}

.topbar h1 {
  font-size: 20px;
  flex: 1;
}

.topbar-right {
  color: #666;
  font-size: 14px;
}

.content {
  padding: 30px;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.stat-icon {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: #333;
}

.stat-label {
  font-size: 14px;
  color: #666;
}

/* 卡片 */
.card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}

.card-header {
  padding: 20px;
  border-bottom: 1px solid #e5e7eb;
}

.card-header h3 {
  font-size: 16px;
}

.card-body {
  padding: 20px;
}

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

.data-table th,
.data-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.data-table th {
  background: #f9fafb;
  font-weight: 600;
  font-size: 14px;
  color: #666;
}

.data-table tbody tr:hover {
  background: #f9fafb;
}

.empty-text {
  text-align: center;
  color: #999;
  padding: 30px !important;
}

/* 状态标签 */
.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
}

.status-pending { background: #fef3c7; color: #92400e; }
.status-confirmed { background: #dbeafe; color: #1e40af; }
.status-in_progress { background: #dbeafe; color: #1e40af; }
.status-completed { background: #d1fae5; color: #065f46; }
.status-cancelled { background: #fee2e2; color: #991b1b; }

/* 按钮 */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.btn-primary {
  background: #667eea;
  color: white;
}

.btn-primary:hover {
  background: #5a67d8;
}

.btn-secondary {
  background: #e5e7eb;
  color: #333;
}

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

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

/* 搜索框 */
.search-box {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.search-input {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
}

.search-input:focus {
  outline: none;
  border-color: #667eea;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.page-btn {
  padding: 8px 12px;
  border: 1px solid #ddd;
  background: white;
  border-radius: 6px;
  cursor: pointer;
}

.page-btn.active {
  background: #667eea;
  color: white;
  border-color: #667eea;
}

/* 弹窗 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: white;
  border-radius: 12px;
  padding: 30px;
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
}

/* 表单 */
.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 15px;
}

.form-row label {
  font-size: 14px;
  color: #666;
}

.form-row input,
.form-row select,
.form-row textarea {
  padding: 10px 14px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
}

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

.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* 响应式 */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .toggle-sidebar {
    display: block;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* 成功按钮 */
.btn-success {
  background: #10b981;
  color: white;
}

.btn-success:hover {
  background: #059669;
}

/* 文件输入 */
.file-input {
  width: 100%;
  padding: 12px;
  border: 2px dashed #d1d5db;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

.file-input:hover {
  border-color: #667eea;
}

/* 导入说明 */
.import-tips {
  background: #f0f9ff;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.import-tips h4 {
  margin: 0 0 8px 0;
  color: #667eea;
}

.import-tips ol {
  margin: 0;
  padding-left: 20px;
}

.import-tips li {
  margin: 4px 0;
  color: #666;
}

.import-content {
  padding: 10px 0;
}