/* 知识库网页系统 - 样式 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

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

.login-box {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5eb;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.error {
    background: #fee;
    color: #c00;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
}

/* 主页 */
.dashboard {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e1e5eb;
}

.header h1 {
    color: #333;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info span {
    color: #666;
}

.btn-logout {
    padding: 8px 16px;
    background: #f0f0f0;
    color: #666;
    text-decoration: none;
    border-radius: 6px;
    font-size: 14px;
    transition: background 0.2s;
}

.btn-logout:hover {
    background: #e0e0e0;
}

/* 搜索栏 */
.search-bar {
    margin-bottom: 20px;
}

.search-bar form {
    display: flex;
    gap: 10px;
}

.search-bar input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e1e5eb;
    border-radius: 8px;
    font-size: 16px;
}

.search-bar input:focus {
    outline: none;
    border-color: #667eea;
}

.search-bar button {
    padding: 12px 24px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
}

.search-bar button:hover {
    background: #5a6fd6;
}

.btn-clear {
    padding: 12px 16px;
    background: #f0f0f0;
    color: #666;
    text-decoration: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
}

.stats {
    color: #666;
    margin-bottom: 16px;
}

.search-hint {
    color: #999;
    font-size: 14px;
}

/* 文档列表 */
.document-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.document-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid #e1e5eb;
}

.document-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.doc-icon {
    font-size: 32px;
    flex-shrink: 0;
}

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

.doc-name {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
}

.doc-meta {
    font-size: 13px;
    color: #999;
    margin-bottom: 8px;
}

.doc-preview {
    font-size: 14px;
    color: #666;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 18px;
}

/* 文档查看页 */
.view-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

.view-page .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.folder-info {
    color: #666;
    font-size: 14px;
    margin-top: 4px;
}

.btn-back {
    display: inline-block;
    padding: 8px 16px;
    background: #f0f0f0;
    color: #666;
    text-decoration: none;
    border-radius: 6px;
    font-size: 14px;
}

.btn-back:hover {
    background: #e0e0e0;
}

.document-content {
    background: white;
    padding: 40px;
    border-radius: 10px;
    border: 1px solid #e1e5eb;
    line-height: 1.8;
}

.document-content h1 {
    font-size: 28px;
    margin: 24px 0 16px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid #e1e5eb;
}

.document-content h1:first-child {
    margin-top: 0;
}

.document-content h2 {
    font-size: 22px;
    margin: 20px 0 12px 0;
}

.document-content h3 {
    font-size: 18px;
    margin: 16px 0 8px 0;
}

.document-content p {
    margin-bottom: 16px;
}

.document-content ul {
    margin: 16px 0;
    padding-left: 24px;
}

.document-content li {
    margin-bottom: 8px;
}

.document-content code {
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: "SF Mono", Monaco, "Courier New", monospace;
    font-size: 14px;
}

.document-content pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 16px 0;
}

.document-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.document-content a {
    color: #667eea;
    text-decoration: none;
}

.document-content a:hover {
    text-decoration: underline;
}

/* 搜索高亮 */
mark {
    background: #fff3cd;
    padding: 1px 4px;
    border-radius: 3px;
}

/* 文件夹分隔符 */
.folder-separator {
    padding: 16px 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-left: 4px solid #667eea;
    margin: 16px 0 8px 0;
    font-weight: 600;
    color: #495057;
    font-size: 14px;
}

.folder-separator:first-child {
    margin-top: 0;
}

/* 文档查看页 */
@media (max-width: 600px) {
    .login-box {
        margin: 20px;
        padding: 30px;
    }
    
    .document-card {
        padding: 16px;
    }
    
    .doc-icon {
        display: none;
    }
    
    .document-content {
        padding: 20px;
    }
}