/**
 * 企业文件管理系统 - 公共样式
 * 本文件包含所有页面共享的CSS样式
 * @version 1.1.0 - 优化：提取所有内联样式，减少代码冗余
 */

/* ==================== CSS变量定义 ==================== */
:root {
    --primary-color: #4e73df;
    --primary-dark: #224abe;
    --sidebar-width: 250px;
    --bg-light: #f8f9fc;
    --text-muted: #858796;
    --border-color: #e3e6f0;
    --shadow-sm: 0 0.15rem 1.75rem 0 rgba(58,59,69,0.1);
    --shadow-md: 0 0.15rem 1.75rem 0 rgba(58,59,69,0.15);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.3);
}

/* ==================== 全局样式 ==================== */
body {
    background-color: var(--bg-light);
}

/* ==================== 侧边栏样式 ==================== */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
    z-index: 1000;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 1.5rem 1rem;
    font-size: 1.2rem;
    font-weight: bold;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-nav {
    padding: 1rem 0;
}

.sidebar-nav a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.sidebar-nav a i {
    margin-right: 0.5rem;
    width: 20px;
}

/* 部门子菜单 */
.dept-submenu {
    display: none;
    background: rgba(0,0,0,0.1);
}

.dept-submenu.show {
    display: block;
}

.dept-submenu a {
    padding-left: 2.5rem !important;
    font-size: 0.9rem;
}

/* 导航切换 */
.nav-toggle {
    cursor: pointer;
}

.nav-toggle::after {
    content: '▸';
    float: right;
    transition: transform 0.2s;
}

.nav-toggle.expanded::after {
    transform: rotate(90deg);
}

/* 侧边栏分隔线 */
.sidebar-divider {
    border-color: rgba(255,255,255,0.2);
    margin: 1rem 0;
}

/* ==================== 主内容区域 ==================== */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 20px;
    min-height: 100vh;
}

/* ==================== 顶部栏 ==================== */
.topbar {
    background: #fff;
    padding: 1rem 1.5rem;
    margin: -20px -20px 20px -20px;
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 面包屑导航 */
.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.breadcrumb-nav a {
    color: #5a5c69;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 500;
}

.breadcrumb-nav i {
    color: #5a5c69;
}

/* ==================== 卡片样式 ==================== */
.card {
    border: none;
    box-shadow: var(--shadow-sm);
}

.card-header {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

/* ==================== 文件管理样式 ==================== */
.file-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.file-toolbar {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.file-list {
    padding: 0;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.2s;
}

.file-item:hover {
    background: var(--bg-light);
}

.file-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 1rem;
}

.file-icon.folder {
    color: #f6c23e;
}

.file-icon.file {
    color: var(--text-muted);
}

.file-icon.image {
    color: #36b9cc;
}

.file-icon.document {
    color: var(--primary-color);
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-name {
    font-weight: 500;
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

/* 上传区域 */
.upload-zone {
    border: 2px dashed #d1d3e2;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background: rgba(78,115,223,0.05);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

/* ==================== 表格样式 ==================== */
.table th {
    border-top: none;
    font-weight: 600;
    color: #5a5c69;
}

.table td {
    vertical-align: middle;
}

/* ==================== 徽章样式 ==================== */
.badge-dept {
    background: #1cc88a;
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

.badge-role {
    font-size: 0.75rem;
}

/* ==================== 部门缩进 ==================== */
.dept-indent {
    color: #d1d3e2;
    margin-right: 0.25rem;
}

/* ==================== 用户头像 ==================== */
.user-dropdown img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 1rem;
}

/* ==================== 登录页面样式 ==================== */
/* 登录页面背景 */
body.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    max-width: 400px;
    width: 100%;
}

.login-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 2rem;
    text-align: center;
}

.login-header i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.login-body {
    padding: 2rem;
}

/* 登录表单样式 */
.login-page .form-control {
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.login-page .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(78,115,223,0.25);
}

.btn-login {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: 8px;
    padding: 0.75rem;
    font-weight: 600;
    color: #fff;
}

.btn-login:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #1a3a8f 100%);
    color: #fff;
}

.login-page .input-group-text {
    background: var(--bg-light);
    border-right: none;
}

.login-page .form-control.with-icon {
    border-left: none;
}

/* ==================== 文件夹树样式 ==================== */
.folder-tree {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.5rem;
    background: #fff;
}

.folder-tree-item {
    padding: 0.5rem;
    cursor: pointer;
    border-radius: 0.25rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.folder-tree-item:hover {
    background: var(--bg-light);
}

.folder-tree-item.selected {
    background: var(--primary-color);
    color: #fff;
}

.folder-tree-item i {
    font-size: 1rem;
}

.folder-tree-item span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}