/* ============================================
   ERD VAT 用户管理系统 - 布局样式
   ============================================ */

/* ========== 管理后台布局 ========== */
.admin-layout {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color-page);
    transition: background-color var(--transition-base);
}

/* ========== 头部 ========== */
.header {
    background: var(--header-bg);
    color: var(--header-text);
    padding: 0 var(--spacing-lg);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-base);
    position: relative;
    z-index: var(--z-index-sticky);
    transition: background-color var(--transition-base);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__logo h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--header-text);
}

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header__user {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-sm);
}

.header__ws-status {
    font-size: 20px;
    cursor: help;
}

/* ========== 主体区域 ========== */
.main-wrapper {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ========== 侧边栏 ========== */
.sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    overflow-y: auto;
    overflow-x: hidden;
    transition: width var(--transition-base), background-color var(--transition-base);
    flex-shrink: 0;
}

.sidebar.collapsed {
    width: 64px;
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
}

/* 侧边栏菜单项 */
.sidebar .el-menu {
    border-right: none !important;
    background-color: transparent !important;
}

.sidebar .el-menu-item {
    height: 50px;
    line-height: 50px;
    margin: 4px 8px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar .el-menu-item:hover {
    background-color: rgba(255, 255, 255, 0.08) !important;
}

.sidebar .el-menu-item.is-active {
    background-color: var(--sidebar-active-bg) !important;
    color: var(--primary-color) !important;
}

.sidebar .el-menu-item .menu-icon {
    margin-right: var(--spacing-sm);
    font-size: var(--font-size-md);
}

/* ========== 主内容区 ========== */
.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    background: var(--bg-color-page);
    overflow-y: auto;
    overflow-x: hidden;
    transition: background-color var(--transition-base);
}

.main-content::-webkit-scrollbar {
    width: 6px;
}

/* ========== 页面标题 ========== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.page-header__title {
    margin: 0;
    font-size: var(--font-size-xxl);
    font-weight: 600;
    color: var(--text-color-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.page-header__actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ========== 移动端头部 ========== */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--header-bg);
    color: var(--header-text);
    height: 50px;
    padding: 0 var(--spacing-md);
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-base);
    z-index: var(--z-index-fixed);
    transition: background-color var(--transition-base);
}

.mobile-header__title {
    font-weight: 600;
    font-size: var(--font-size-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ========== 移动端底部导航 ========== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--sidebar-bg);
    box-shadow: 0 -2px 10px var(--shadow-color);
    z-index: var(--z-index-fixed);
    height: 60px;
    transition: background-color var(--transition-base);
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 100%;
    padding: 0 var(--spacing-sm);
}

.mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--sidebar-text);
    text-decoration: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-xs);
    text-align: center;
    border-radius: var(--radius-md);
}

.mobile-nav-item:active {
    background: rgba(64, 158, 255, 0.1);
}

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

.mobile-nav-item__icon {
    font-size: 20px;
    margin-bottom: 2px;
}

.mobile-nav-item__label {
    font-size: 10px;
    line-height: 1.2;
}

/* ========== 响应式布局 ========== */
@media screen and (max-width: 768px) {
    /* 隐藏桌面端侧边栏和头部 */
    .sidebar {
        display: none !important;
    }
    
    .header {
        display: none !important;
    }
    
    /* 显示移动端导航 */
    .mobile-bottom-nav {
        display: block;
    }
    
    .mobile-header {
        display: flex;
    }
    
    /* 调整主内容区域 */
    .main-content {
        padding: var(--spacing-md);
        padding-top: 60px !important;
        padding-bottom: 70px !important;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .page-header__title {
        font-size: var(--font-size-lg);
    }
    
    .page-header__actions {
        width: 100%;
        flex-wrap: wrap;
    }
}

/* 平板适配 */
@media screen and (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
}

/* 大屏适配 */
@media screen and (min-width: 1440px) {
    .sidebar {
        width: 280px;
    }
    
    .main-content {
        padding: var(--spacing-xl);
    }
}