/* Element UI 风格的 CSS */
:root {
  --el-color-primary: #409EFF;
  --el-color-success: #67C23A;
  --el-color-warning: #E6A23C;
  --el-color-danger: #F56C6C;
  --el-color-info: #909399;
  --el-color-text-primary: #303133;
  --el-color-text-regular: #606266;
  --el-color-text-secondary: #909399;
  --el-color-text-placeholder: #C0C4CC;
  --el-border-color-base: #DCDFE6;
  --el-border-color-light: #E4E7ED;
  --el-border-color-lighter: #EBEEF5;
  --el-border-color-extra-light: #F2F6FC;
  --el-background-color-base: #F5F7FA;
  --el-font-size-extra-large: 20px;
  --el-font-size-large: 18px;
  --el-font-size-medium: 16px;
  --el-font-size-base: 14px;
  --el-font-size-small: 13px;
  --el-font-size-extra-small: 12px;
  --el-border-radius-base: 4px;
  --el-border-radius-small: 2px;
  --el-shadow-base: 0 2px 4px rgba(0, 0, 0, 0.12), 0 0 6px rgba(0, 0, 0, 0.04);
  --el-shadow-light: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
}

/* 全局样式 */
body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--el-color-text-regular);
  font-size: var(--el-font-size-base);
  line-height: 1.5;
  background-color: #f5f7fa;
}

/* 卡片样式 */
.el-card {
  border-radius: var(--el-border-radius-base);
  border: 1px solid var(--el-border-color-lighter);
  background-color: #fff;
  overflow: hidden;
  box-shadow: var(--el-shadow-light);
  transition: all 0.3s;
}

.el-card:hover {
  box-shadow: var(--el-shadow-base);
}

.el-card-header {
  padding: 15px 20px;
  border-bottom: 1px solid var(--el-border-color-lighter);
  font-size: var(--el-font-size-medium);
  font-weight: 500;
  color: var(--el-color-text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.el-card-body {
  padding: 20px;
}

/* 按钮样式 */
.el-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  background: #fff;
  border: 1px solid var(--el-border-color-base);
  border-radius: var(--el-border-radius-base);
  color: var(--el-color-text-regular);
  font-weight: 500;
  padding: 8px 15px;
  font-size: var(--el-font-size-base);
  transition: all 0.3s;
}

.el-button:hover {
  color: var(--el-color-primary);
  border-color: #c6e2ff;
  background-color: #ecf5ff;
}

.el-button-primary {
  color: #fff;
  background-color: var(--el-color-primary);
  border-color: var(--el-color-primary);
}

.el-button-primary:hover {
  background-color: #66b1ff;
  border-color: #66b1ff;
  color: #fff;
}

.el-button-success {
  color: #fff;
  background-color: var(--el-color-success);
  border-color: var(--el-color-success);
}

.el-button-success:hover {
  background-color: #85ce61;
  border-color: #85ce61;
  color: #fff;
}

.el-button-danger {
  color: #fff;
  background-color: var(--el-color-danger);
  border-color: var(--el-color-danger);
}

.el-button-danger:hover {
  background-color: #f78989;
  border-color: #f78989;
  color: #fff;
}

.el-button-warning {
  color: #fff;
  background-color: var(--el-color-warning);
  border-color: var(--el-color-warning);
}

.el-button-warning:hover {
  background-color: #ebb563;
  border-color: #ebb563;
  color: #fff;
}

.el-button-info {
  color: #fff;
  background-color: var(--el-color-info);
  border-color: var(--el-color-info);
}

.el-button-info:hover {
  background-color: #a6a9ad;
  border-color: #a6a9ad;
  color: #fff;
}

/* 表单样式 */
.el-form-item {
  margin-bottom: 20px;
}

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

.el-input {
  width: 100%;
  border: 1px solid var(--el-border-color-base);
  border-radius: var(--el-border-radius-base);
  padding: 8px 12px;
  font-size: var(--el-font-size-base);
  line-height: 1.5;
  transition: all 0.3s;
}

.el-input:focus {
  outline: none;
  border-color: var(--el-color-primary);
  box-shadow: 0 0 0 2px rgba(64, 158, 255, 0.2);
}

.el-checkbox {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.el-checkbox-input {
  margin-right: 6px;
}

/* 表格样式 */
.el-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

.el-table th {
  padding: 12px 10px;
  text-align: left;
  font-weight: 500;
  color: var(--el-color-text-regular);
  background-color: var(--el-background-color-base);
  border-bottom: 1px solid var(--el-border-color-lighter);
}

.el-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--el-border-color-lighter);
}

.el-table tr:hover {
  background-color: var(--el-border-color-extra-light);
}

/* 徽章 */
.el-badge {
  display: inline-block;
  padding: 4px 8px;
  font-size: var(--el-font-size-extra-small);
  border-radius: 10px;
  font-weight: 500;
  line-height: 1;
}

.el-badge-success {
  background-color: var(--el-color-success);
  color: #fff;
}

.el-badge-warning {
  background-color: var(--el-color-warning);
  color: #fff;
}

.el-badge-danger {
  background-color: var(--el-color-danger);
  color: #fff;
}

.el-badge-info {
  background-color: var(--el-color-info);
  color: #fff;
}

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

/* 侧边栏 */
.el-sidebar {
  background-color: #fff;
  border-radius: var(--el-border-radius-base);
  box-shadow: var(--el-shadow-light);
  padding: 0;
}

.el-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  border-right: none;
}

.el-menu-item {
  display: flex;
  align-items: center;
  height: 50px;
  padding: 0 20px;
  cursor: pointer;
  color: var(--el-color-text-regular);
  transition: all 0.3s;
}

.el-menu-item:hover, .el-menu-item.active {
  color: var(--el-color-primary);
  background-color: #ecf5ff;
}

.el-menu-item i {
  margin-right: 10px;
}

/* 顶部导航栏 */
.el-navbar {
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  height: 60px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  margin-bottom: 20px;
}

.el-navbar-logo {
  font-size: var(--el-font-size-large);
  font-weight: bold;
  color: var(--el-color-primary);
  margin-right: 40px;
}

.el-navbar-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.el-navbar-item {
  margin-right: 20px;
  color: var(--el-color-text-regular);
  cursor: pointer;
  transition: all 0.3s;
}

.el-navbar-item:hover, .el-navbar-item.active {
  color: var(--el-color-primary);
}

/* 加载指示器 */
.el-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 0;
}

.el-loading-spinner {
  width: 30px;
  height: 30px;
  border: 2px solid var(--el-color-primary);
  border-radius: 50%;
  border-top-color: transparent;
  animation: el-loading-rotate 1s linear infinite;
}

@keyframes el-loading-rotate {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* 容器 */
.el-container {
  padding: 20px;
  background-color: #f5f7fa;
  min-height: calc(100vh - 60px);
}

/* 页面标题 */
.el-page-header {
  margin-bottom: 20px;
}

.el-page-title {
  font-size: var(--el-font-size-extra-large);
  font-weight: 500;
  color: var(--el-color-text-primary);
  margin-bottom: 10px;
}

.el-page-subtitle {
  font-size: var(--el-font-size-base);
  color: var(--el-color-text-secondary);
}

/* 布局组件 */
.el-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.el-col {
  padding: 0 10px;
  margin-bottom: 20px;
}

/* 统计卡片 */
.el-stat-card {
  padding: 20px;
  text-align: center;
}

.el-stat-value {
  font-size: 28px;
  font-weight: 600;
  color: var(--el-color-text-primary);
  margin-bottom: 5px;
}

.el-stat-title {
  font-size: var(--el-font-size-base);
  color: var(--el-color-text-secondary);
}

/* 座位块 */
.el-seat {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--el-font-size-small);
  border-radius: var(--el-border-radius-small);
  margin: 3px;
  transition: all 0.3s;
  cursor: pointer;
}

.el-seat:hover {
  transform: scale(1.1);
}

.el-seat-free {
  background-color: var(--el-color-success);
  color: #fff;
}

.el-seat-occupied {
  background-color: var(--el-color-danger);
  color: #fff;
}

/* 警告框 */
.el-alert {
  padding: 12px 16px;
  border-radius: var(--el-border-radius-base);
  display: flex;
  align-items: flex-start;
  margin-bottom: 16px;
  position: relative;
}

.el-alert-info {
  background-color: #f4f4f5;
  color: var(--el-color-info);
}

.el-alert-success {
  background-color: #f0f9eb;
  color: var(--el-color-success);
}

.el-alert-warning {
  background-color: #fdf6ec;
  color: var(--el-color-warning);
}

.el-alert-danger {
  background-color: #fef0f0;
  color: var(--el-color-danger);
}

.el-alert-title {
  font-weight: bold;
  font-size: var(--el-font-size-base);
  margin-bottom: 6px;
}

.el-alert-content {
  font-size: var(--el-font-size-small);
}

/* 分割线 */
.el-divider {
  height: 1px;
  background-color: var(--el-border-color-lighter);
  margin: 20px 0;
}