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#444;border-radius:var(--radius);background:#252525;color:#e0e0e0;padding:8px 10px;font-size:12px;outline:none;resize:vertical}.kb-upload-textarea:focus{border-color:#666}.kb-upload-title{border:1px solid #444;border-radius:var(--radius);background:#252525;color:#e0e0e0;padding:6px 10px;font-size:12px;outline:none;flex:1}.kb-upload-title:focus{border-color:#666}.kb-upload-row{display:flex;gap:8px;align-items:center}.kb-file-btn{flex-shrink:0}.kb-pending-file{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#a0a0a0;padding:4px 8px;background:#252525;border-radius:3px}.kb-pending-file button{border:none;background:transparent;color:#888;cursor:pointer;font-size:14px;padding:0 2px}.kb-pending-file button:hover{color:var(--danger)}.upload-err{color:var(--danger)!important}.kb-upload-btn{align-self:flex-start;height:auto!important;padding:6px 14px!important;font-size:12px!important}.kb-doc-list{flex:1;overflow-y:auto;padding:8px 0}.sources-label{font-size:11px;color:var(--muted);margin-bottom:2px}.kb-doc-icon{font-size:16px;flex-shrink:0;margin-right:8px}.kb-doc-card{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid #2a2a2a;cursor:default}.kb-doc-card:hover{background:#2a2a2a}.kb-doc-card .kb-doc-info{display:flex;flex-direction:column;gap:2px;overflow:hidden}.kb-doc-card .kb-doc-title{font-size:13px;color:#e0e0e0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kb-doc-card .kb-doc-meta{font-size:11px;color:#666}.kb-main{display:flex;flex-direction:column;min-height:0;overflow:hidden;background:var(--bg)}@media(max-width:768px){.kb-shell{grid-template-columns:1fr}.kb-sidebar{position:fixed;top:0;left:0;bottom:0;width:260px;z-index:50;transform:translate(-100%);transition:transform .2s ease}.kb-shell.sidebar-open .kb-sidebar{transform:translate(0)}.kb-shell.sidebar-open .sidebar-overlay{display:block}}