/**
 * Linkerweb 侧边栏样式
 * 包含所有与侧边栏相关的样式定义
 */

/* 侧边栏基础样式 */
.sidebar {
    width: var(--sidebar-width, 260px);
    background: var(--secondary-color, #2a3b55);
    color: #fff;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    transition: all 0.3s ease;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
    overflow-x: hidden;
}

/* 侧边栏头部 */
.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header .logo {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    margin: 0;
    transition: all 0.3s ease;
}

.sidebar-toggle {
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 18px;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 侧边栏内容 */
.sidebar-content {
    padding: 20px 0;
}

/* 用户信息区域 */
.user-info {
    display: flex;
    align-items: center;
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color, #4169e1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
}

.user-avatar i {
    font-size: 20px;
}

.user-details {
    overflow: hidden;
    transition: all 0.3s ease;
}

.user-details h3 {
    margin: 0 0 5px;
    font-size: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-details p {
    margin: 0;
    font-size: 13px;
    opacity: 0.8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 导航菜单 */
.sidebar-nav {
    margin-top: 20px;
}

.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li {
    position: relative;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-left: 4px solid var(--accent-color, #00c9ff);
}

.sidebar-nav li.active > a {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-left: 4px solid var(--accent-color, #00c9ff);
}

.sidebar-nav a i:first-child {
    margin-right: 15px;
    width: 20px;
    text-align: center;
    font-size: 16px;
}

/* 下拉菜单 */
.dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dropdown-toggle i.fa-chevron-down {
    margin-left: auto;
    font-size: 12px;
    transition: all 0.3s ease;
}

.sidebar-nav li.open > a.dropdown-toggle i.fa-chevron-down {
    transform: rotate(180deg);
}

.submenu {
    max-height: 0;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.1);
    transition: max-height 0.3s ease;
}

.sidebar-nav .submenu a {
    padding-left: 55px;
    font-size: 14px;
}

/* 侧边栏折叠状态 */
.sidebar.collapsed {
    width: 70px;
}

.sidebar.collapsed .logo {
    opacity: 0;
}

.sidebar.collapsed .sidebar-header {
    justify-content: center;
}

.sidebar.collapsed .user-details {
    opacity: 0;
    width: 0;
}

.sidebar.collapsed .sidebar-nav a span,
.sidebar.collapsed .sidebar-nav a i.fa-chevron-down {
    opacity: 0;
    width: 0;
}

.sidebar.collapsed .submenu {
    position: absolute;
    left: 100%;
    top: 0;
    width: 200px;
    max-height: none;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s;
    box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.1);
    background: var(--secondary-color, #2a3b55);
    z-index: 100;
}

.sidebar.collapsed li:hover .submenu {
    visibility: visible;
    opacity: 1;
}

.sidebar.collapsed .submenu a {
    padding-left: 20px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .sidebar {
        width: var(--sidebar-collapsed-width, 70px);
        transform: translateX(0);
    }
    
    .sidebar .logo,
    .sidebar .user-details,
    .sidebar .sidebar-nav a span,
    .sidebar .sidebar-nav a i.fa-chevron-down {
        opacity: 0;
        width: 0;
    }
    
    .sidebar.expanded {
        width: var(--sidebar-width, 260px);
        box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
        z-index: 1000;
    }
    
    .sidebar.expanded .logo,
    .sidebar.expanded .user-details,
    .sidebar.expanded .sidebar-nav a span,
    .sidebar.expanded .sidebar-nav a i.fa-chevron-down {
        opacity: 1;
        width: auto;
    }
    
    .overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        display: none;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    
    .overlay.active {
        display: block;
        opacity: 1;
    }
}

/* 主内容区域响应侧边栏 */
.main-content {
    margin-left: var(--sidebar-width, 260px);
    transition: margin-left 0.3s ease;
}

.main-content.expanded {
    margin-left: var(--sidebar-collapsed-width, 70px);
}

@media (max-width: 992px) {
    .main-content {
        margin-left: var(--sidebar-collapsed-width, 70px);
    }
}