/* ==========================================
 * Layui 左侧边栏导航样式
 * 基于layui框架的现代化侧边栏
 * ========================================== */

/* ==========================================
 * 侧边栏主容器 - 兼容admin-sidebar类
 * ========================================== */
.admin-sidebar,
.layui-layout-admin .layui-side {
  position: fixed;
  top: 60px;
  left: 0;
  bottom: 0;
  width: 200px;
  background: var(--layui-bg-primary);
  border-right: 1px solid var(--layui-border);
  box-shadow: var(--layui-shadow-sm);
  z-index: 998;
  transition: var(--layui-transition-normal);
  overflow-x: hidden;
  overflow-y: auto;
}

/* 侧边栏滚动条美化 */
.admin-sidebar::-webkit-scrollbar,
.layui-layout-admin .layui-side::-webkit-scrollbar {
  width: 6px;
}

.admin-sidebar::-webkit-scrollbar-track,
.layui-layout-admin .layui-side::-webkit-scrollbar-track {
  background: var(--layui-bg-tertiary);
}

.admin-sidebar::-webkit-scrollbar-thumb,
.layui-layout-admin .layui-side::-webkit-scrollbar-thumb {
  background: var(--layui-gray-300);
  border-radius: var(--layui-radius-sm);
}

.admin-sidebar::-webkit-scrollbar-thumb:hover,
.layui-layout-admin .layui-side::-webkit-scrollbar-thumb:hover {
  background: var(--layui-gray-400);
}

/* ==========================================
 * 侧边栏导航菜单
 * ========================================== */
.admin-sidebar .admin-sidebar__nav,
.layui-layout-admin .layui-side .layui-nav {
  background: none;
  color: var(--layui-text-primary);
  padding: var(--layui-space-md) 0;
  width: 100%;
}

.admin-sidebar .admin-sidebar__nav-item,
.layui-layout-admin .layui-side .layui-nav .layui-nav-item {
  display: block;
  position: relative;
  margin: 0;
}

.admin-sidebar .admin-sidebar__nav-item {
  display: flex;
  align-items: center;
  padding: var(--layui-space-md) var(--layui-space-lg);
  color: var(--layui-text-secondary);
  font-size: var(--layui-font-size-base);
  line-height: 1.5;
  transition: var(--layui-transition-fast);
  position: relative;
  text-decoration: none;
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-item a {
  display: flex;
  align-items: center;
  padding: var(--layui-space-md) var(--layui-space-lg);
  color: var(--layui-text-secondary);
  font-size: var(--layui-font-size-base);
  line-height: 1.5;
  transition: var(--layui-transition-fast);
  position: relative;
  text-decoration: none;
}

.admin-sidebar .admin-sidebar__nav-item:hover,
.layui-layout-admin .layui-side .layui-nav .layui-nav-item a:hover {
  background: var(--layui-bg-secondary);
  color: var(--layui-primary);
}

.admin-sidebar .admin-sidebar__nav-item.active,
.layui-layout-admin .layui-side .layui-nav .layui-nav-item.layui-this a {
  background: var(--layui-primary);
  color: var(--layui-text-light);
  font-weight: var(--layui-font-weight-medium);
}

/* 导航项图标 */
.admin-sidebar .admin-sidebar__nav-icon,
.layui-layout-admin .layui-side .layui-nav .layui-nav-item a .layui-icon {
  margin-right: var(--layui-space-md);
  font-size: var(--layui-font-size-lg);
  width: 20px;
  text-align: center;
}

/* 导航项文本 */
.admin-sidebar .admin-sidebar__nav-text,
.layui-layout-admin .layui-side .layui-nav .layui-nav-item a span {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================
 * 侧边栏品牌区域 - 兼容admin-sidebar
 * ========================================== */
.admin-sidebar .admin-sidebar__brand {
  padding: var(--layui-space-lg);
  border-bottom: 1px solid var(--layui-border-light);
  background: var(--layui-bg-secondary);
}

.admin-sidebar .admin-sidebar__brand-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--layui-text-primary);
  transition: var(--layui-transition-fast);
}

.admin-sidebar .admin-sidebar__brand-link:hover {
  color: var(--layui-primary);
}

.admin-sidebar .brand-logo {
  width: 32px;
  height: 32px;
  background: var(--layui-primary);
  color: var(--layui-text-light);
  border-radius: var(--layui-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--layui-font-weight-bold);
  font-size: var(--layui-font-size-lg);
  margin-right: var(--layui-space-md);
}

.admin-sidebar .brand-title {
  font-size: var(--layui-font-size-lg);
  font-weight: var(--layui-font-weight-semibold);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================
 * 侧边栏标题
 * ========================================== */
.layui-layout-admin .layui-side .layui-nav-title {
  padding: var(--layui-space-lg) var(--layui-space-lg) var(--layui-space-sm);
  color: var(--layui-text-tertiary);
  font-size: var(--layui-font-size-xs);
  font-weight: var(--layui-font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--layui-border-light);
  margin-bottom: var(--layui-space-sm);
}

/* ==========================================
 * 子菜单样式
 * ========================================== */
.layui-layout-admin .layui-side .layui-nav .layui-nav-child {
  background: var(--layui-bg-secondary);
  padding: 0;
  display: none;
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-itemed > .layui-nav-child {
  display: block;
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-child dd {
  margin: 0;
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-child dd a {
  padding: var(--layui-space-sm) var(--layui-space-lg) var(--layui-space-sm) calc(var(--layui-space-lg) + 20px + var(--layui-space-md));
  color: var(--layui-text-secondary);
  font-size: var(--layui-font-size-sm);
  position: relative;
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-child dd a::before {
  content: '';
  position: absolute;
  left: calc(var(--layui-space-lg) + 20px + var(--layui-space-sm));
  top: 50%;
  width: 4px;
  height: 4px;
  background: var(--layui-gray-400);
  border-radius: var(--layui-radius-full);
  transform: translateY(-50%);
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-child dd a:hover {
  background: var(--layui-bg-tertiary);
  color: var(--layui-primary);
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-child dd.layui-this a {
  background: var(--layui-primary);
  color: var(--layui-text-light);
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-child dd.layui-this a::before {
  background: var(--layui-text-light);
}

/* ==========================================
 * 下拉箭头
 * ========================================== */
.layui-layout-admin .layui-side .layui-nav .layui-nav-more {
  right: var(--layui-space-lg);
  border-top-color: var(--layui-text-secondary);
  transition: var(--layui-transition-fast);
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-itemed > a .layui-nav-more {
  border-top-color: transparent;
  border-bottom-color: var(--layui-text-secondary);
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-item.layui-this .layui-nav-more {
  border-top-color: var(--layui-text-light);
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-item.layui-this.layui-nav-itemed > a .layui-nav-more {
  border-bottom-color: var(--layui-text-light);
}

/* ==========================================
 * 侧边栏底部区域 - 兼容admin-sidebar
 * ========================================== */
.admin-sidebar .admin-sidebar__footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--layui-space-lg);
  border-top: 1px solid var(--layui-border-light);
  background: var(--layui-bg-secondary);
}

/* ==========================================
 * 用户信息区域 - 兼容admin-sidebar
 * ========================================== */
.admin-sidebar .admin-sidebar__user-info,
.layui-layout-admin .layui-side .layui-user-info {
  padding: var(--layui-space-lg);
  border-bottom: 1px solid var(--layui-border-light);
  background: var(--layui-bg-secondary);
  display: flex;
  align-items: center;
}

.admin-sidebar .admin-sidebar__user-avatar,
.layui-layout-admin .layui-side .layui-user-info .layui-user-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--layui-radius-full);
  margin-right: var(--layui-space-md);
  border: 2px solid var(--layui-border);
}

.layui-layout-admin .layui-side .layui-user-info .layui-user-details {
  flex: 1;
  min-width: 0;
}

.admin-sidebar .admin-sidebar__user-name,
.layui-layout-admin .layui-side .layui-user-info .layui-user-name {
  font-size: var(--layui-font-size-base);
  font-weight: var(--layui-font-weight-medium);
  color: var(--layui-text-primary);
  margin-bottom: var(--layui-space-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-sidebar .admin-sidebar__user-role,
.layui-layout-admin .layui-side .layui-user-info .layui-user-role {
  font-size: var(--layui-font-size-xs);
  color: var(--layui-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================
 * 统计信息
 * ========================================== */
.layui-layout-admin .layui-side .layui-side-stats {
  padding: var(--layui-space-md) var(--layui-space-lg);
  border-bottom: 1px solid var(--layui-border-light);
  background: var(--layui-bg-primary);
}

.layui-layout-admin .layui-side .layui-side-stats .layui-stats-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--layui-space-sm);
  font-size: var(--layui-font-size-sm);
}

.layui-layout-admin .layui-side .layui-side-stats .layui-stats-item:last-child {
  margin-bottom: 0;
}

.layui-layout-admin .layui-side .layui-side-stats .layui-stats-label {
  color: var(--layui-text-secondary);
}

.layui-layout-admin .layui-side .layui-side-stats .layui-stats-value {
  color: var(--layui-text-primary);
  font-weight: var(--layui-font-weight-medium);
}

/* ==========================================
 * 退出按钮样式 - 兼容admin-sidebar
 * ========================================== */
.admin-sidebar .admin-sidebar__footer .btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--layui-space-sm);
  width: 100%;
  padding: var(--layui-space-sm) var(--layui-space-md);
  font-size: var(--layui-font-size-sm);
  font-weight: var(--layui-font-weight-medium);
  text-decoration: none;
  border-radius: var(--layui-radius-md);
  transition: var(--layui-transition-fast);
  border: 1px solid transparent;
}

.admin-sidebar .admin-sidebar__footer .btn-danger {
  color: var(--layui-danger);
  background: transparent;
  border-color: var(--layui-danger);
}

.admin-sidebar .admin-sidebar__footer .btn-danger:hover {
  color: var(--layui-text-light);
  background: var(--layui-danger);
}

.admin-sidebar .admin-sidebar__footer .btn i {
  font-style: normal;
}

/* ==========================================
 * 移动端适配
 * ========================================== */
@media screen and (max-width: 768px) {
  .layui-layout-admin .layui-side {
    left: -200px;
    transition: left 0.3s ease;
  }
  
  .layui-layout-admin.mobile-menu-open .layui-side {
    left: 0;
  }
  
  .layui-layout-admin.mobile-menu-open .layui-body {
    left: 200px;
  }
  
  .layui-layout-admin .layui-side.layui-side-shrink {
    width: 60px;
  }
  
  .layui-layout-admin .layui-side.layui-side-shrink .layui-nav-item a span,
  .layui-layout-admin .layui-side.layui-side-shrink .layui-nav-title,
  .layui-layout-admin .layui-side.layui-side-shrink .layui-user-details,
  .layui-layout-admin .layui-side.layui-side-shrink .layui-side-stats {
    display: none;
  }
  
  .layui-layout-admin .layui-side.layui-side-shrink .layui-logo {
    width: 60px;
    padding: 0;
    justify-content: center;
  }
  
  .layui-layout-admin .layui-side.layui-side-shrink .layui-logo span {
    display: none;
  }
  
  .layui-layout-admin .layui-side.layui-side-shrink .layui-user-info {
    padding: var(--layui-space-md) var(--layui-space-sm);
    justify-content: center;
  }
  
  .layui-layout-admin .layui-side.layui-side-shrink .layui-user-avatar {
    margin-right: 0;
  }
}

/* ==========================================
 * 侧边栏折叠状态
 * ========================================== */
.layui-layout-admin .layui-side.layui-side-shrink {
  width: 60px;
}

.layui-layout-admin .layui-side.layui-side-shrink .layui-nav-item a span,
.layui-layout-admin .layui-side.layui-side-shrink .layui-nav-title,
.layui-layout-admin .layui-side.layui-side-shrink .layui-user-details,
.layui-layout-admin .layui-side.layui-side-shrink .layui-side-stats {
  display: none;
}

.layui-layout-admin .layui-side.layui-side-shrink .layui-logo {
  width: 60px;
  padding: 0;
  justify-content: center;
}

.layui-layout-admin .layui-side.layui-side-shrink .layui-logo span {
  display: none;
}

.layui-layout-admin .layui-side.layui-side-shrink .layui-user-info {
  padding: var(--layui-space-md) var(--layui-space-sm);
  justify-content: center;
}

.layui-layout-admin .layui-side.layui-side-shrink .layui-user-avatar {
  margin-right: 0;
}

/* 折叠状态下的底部区域 */
.layui-layout-admin .layui-side.layui-side-shrink .admin-sidebar__footer,
.layui-layout-admin .layui-side.layui-side-shrink .layui-user-info {
  padding: var(--layui-space-md) var(--layui-space-sm);
  justify-content: center;
}

.layui-layout-admin .layui-side.layui-side-shrink .admin-sidebar__footer .btn span,
.layui-layout-admin .layui-side.layui-side-shrink .admin-sidebar__user-details {
  display: none;
}

.layui-layout-admin .layui-side.layui-side-shrink .admin-sidebar__footer .btn {
  padding: var(--layui-space-sm);
  justify-content: center;
}

/* ==========================================
 * 动画效果
 * ========================================== */
.layui-layout-admin .layui-side {
  animation: layuiSlideLeft 0.3s ease-out;
}

@keyframes layuiSlideLeft {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* 导航项悬停效果 */
.layui-layout-admin .layui-side .layui-nav .layui-nav-item a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--layui-primary);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.layui-layout-admin .layui-side .layui-nav .layui-nav-item a:hover::before,
.layui-layout-admin .layui-side .layui-nav .layui-nav-item.layui-this a::before {
  transform: scaleY(1);
}

/* ==========================================
 * 暗色模式支持
 * ========================================== */
@media (prefers-color-scheme: dark) {
  .layui-layout-admin .layui-side {
    background: var(--layui-bg-dark);
    border-right-color: var(--layui-border-dark);
  }
  
  .layui-layout-admin .layui-side .layui-nav .layui-nav-item a {
    color: var(--layui-text-light);
  }
  
  .layui-layout-admin .layui-side .layui-nav .layui-nav-item a:hover {
    background: rgba(255, 255, 255, 0.05);
  }
  
  .layui-layout-admin .layui-side .layui-nav .layui-nav-child {
    background: var(--layui-bg-darker);
  }
  
  .layui-layout-admin .layui-side .layui-user-info {
    background: var(--layui-bg-darker);
    border-bottom-color: var(--layui-border-dark);
  }
  
  .layui-layout-admin .layui-side .layui-side-stats {
    background: var(--layui-bg-darker);
    border-bottom-color: var(--layui-border-dark);
  }
  
  .layui-layout-admin .layui-side .layui-nav-title {
    color: var(--layui-text-muted);
    border-bottom-color: var(--layui-border-dark);
  }
}