/**
 * 青骄升学 WEB后台 - 侧边栏样式
 * 基于WEB_ADMIN_UI_DESIGN_SPEC.md设计规范
 */

/* ==================== 用户信息区域 ==================== */

.sidebar-user-info {
  border-top: 1px solid #334155;
  padding: 16px;
  background-color: #1E293B;
}

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

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user-avatar-icon {
  font-size: 20px;
  color: #FFFFFF;
}

.user-details {
  flex: 1;
}

.user-name {
  font-size: 14px;
  font-weight: 500;
  color: #FFFFFF;
  margin-bottom: 2px;
}

.user-email {
  font-size: 12px;
  color: #9CA3AF;
}

.btn-logout {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 36px;
  padding: 0 16px;
  border: 1px solid #374151;
  border-radius: 8px;
  background-color: transparent;
  color: #94A3B8;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-logout:hover {
  background-color: #334155;
  color: #E2E8F0;
}

.btn-logout:active {
  background-color: #475569;
  color: #F1F5F9;
}

/* ==================== 侧边栏菜单 ==================== */

/* 侧边栏菜单项 */
.sidebar-menu {
  list-style: none;
}

.sidebar-menu-item {
  position: relative;
}

/* 一级菜单 */
.sidebar-menu-link {
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 var(--spacing-lg);
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.sidebar-menu-link:hover {
  background-color: var(--sidebar-hover);
  color: #FFFFFF;
}

.sidebar-menu-link.active {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

/* 菜单图标 */
.sidebar-menu-icon {
  width: 20px;
  height: 20px;
  margin-right: var(--spacing-md);
  flex-shrink: 0;
}

/* 菜单文字 */
.sidebar-menu-text {
  flex: 1;
}

/* 子菜单展开/收起图标 */
.sidebar-menu-arrow {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}

.sidebar-menu-link.expanded .sidebar-menu-arrow {
  transform: rotate(180deg);
}

/* 二级菜单 */
.sidebar-submenu {
  display: none;
  background-color: var(--sidebar-submenu-bg);
}

.sidebar-submenu.expanded {
  display: block;
}

.sidebar-submenu-item {
  list-style: none;
}

.sidebar-submenu-link {
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--spacing-lg) 0 calc(var(--spacing-lg) * 2.6);
  color: #9CA3AF;
  font-size: 13px;
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.sidebar-submenu-link:hover {
  background-color: var(--sidebar-hover);
  color: #FFFFFF;
}

.sidebar-submenu-link.active {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

/* 响应式侧边栏 */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: var(--z-index-modal);
  }

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

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

  .sidebar-logo-text {
    font-size: 16px;
  }

  .sidebar-menu-link {
    height: 44px;
  }

  .sidebar-submenu-link {
    height: 40px;
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-index-modal-backdrop);
    backdrop-filter: blur(2px);
  }

  .sidebar-overlay.active {
    display: block;
  }
}

/* 平板优化 */
@media (min-width: 769px) and (max-width: 1024px) {
  .sidebar {
    width: 200px;
  }

  .main-content {
    margin-left: 200px;
  }

  .sidebar-logo-text {
    font-size: 16px;
  }
}