:root{--bg: #12151c;--bg-panel: #1b1f27;--bg-input: #232936;--border: #313847;--text: #e4e9f1;--text-dim: #9aa5b5;--accent: #7aa2f7;--accent-dark: #5a7fd6;--user-bubble: #2d4a80;--error: #f28b82;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;background:var(--bg);color:var(--text)}.app-layout{display:flex;height:100%}.sidebar{width:230px;flex-shrink:0;background:var(--bg-panel);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 10px;gap:4px}.sidebar-title{font-size:1.05rem;font-weight:700;padding:8px 12px 16px;color:var(--accent)}.sidebar-link{display:block;padding:10px 12px;border-radius:8px;color:var(--text-dim);text-decoration:none;font-size:.95rem}.sidebar-link:hover{background:var(--bg-input);color:var(--text)}.sidebar-link.active{background:var(--bg-input);color:var(--accent);font-weight:600}.main-area{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}.page{flex:1;display:flex;flex-direction:column;padding:24px 32px;overflow-y:auto;min-height:0}.page h1{margin:0 0 4px;font-size:1.4rem}.page-hint{color:var(--text-dim);margin:0 0 20px;font-size:.9rem}.page-narrow{max-width:640px}.page-chat,.page-graph{overflow:hidden}.page-graph{padding:16px 20px 20px}.page-graph h1{margin:0 0 2px;font-size:1.2rem}.page-graph .page-hint{margin:0 0 12px;font-size:.82rem}.page-chat{padding:0}.chat-layout{flex:1;display:flex;min-height:0}.session-sidebar{width:240px;flex-shrink:0;border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 12px;gap:12px;overflow-y:auto}.new-chat-button{background:var(--bg-input);border:1px solid var(--accent-dark);color:var(--accent);font-weight:600;text-align:left;padding:10px 14px}.new-chat-button:hover{background:var(--accent-dark);color:var(--text)}.session-list{display:flex;flex-direction:column;gap:4px}.session-list-status{color:var(--text-dim);font-size:.85rem;padding:8px 4px}.session-item{background:transparent;border:none;text-align:left;padding:9px 8px 9px 10px;border-radius:8px;display:flex;align-items:center;gap:6px;cursor:pointer}.session-item:hover:not(.active){background:var(--bg-input)}.session-item.active{background:var(--bg-input);border:1px solid var(--accent-dark)}.session-item-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.session-item-title{font-size:.88rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.session-item-time{font-size:.75rem;color:var(--text-dim)}.session-delete-button{flex-shrink:0;background:transparent;border:none;padding:4px 6px;font-size:.9rem;opacity:0;color:var(--text-dim)}.session-item:hover .session-delete-button,.session-item:focus-within .session-delete-button{opacity:1}.session-delete-button:hover{background:#8b2f2f;color:var(--text)}.chat-main{flex:1;min-width:0;display:flex;flex-direction:column;padding:24px 32px;min-height:0}.chat-loading{color:var(--text-dim);padding:16px 0}.bio-card{display:flex;flex-direction:column;gap:20px;background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:24px}.bio-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}.bio-form label{display:flex;flex-direction:column;gap:6px;font-size:.75rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--text-dim)}.bio-description{display:flex;flex-direction:column;gap:6px}.bio-form input,.bio-form textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:10px 12px;font-size:.95rem;font-family:inherit;font-weight:400;letter-spacing:normal;text-transform:none;resize:vertical}.bio-form input:focus,.bio-form textarea:focus{outline:1px solid var(--accent)}.bio-form-footer{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--border)}.save-ok{color:#81c995;font-size:.9rem}.chat{position:relative;flex:1;display:flex;flex-direction:column;min-height:0;max-width:860px;width:100%}.chat-drop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:10;display:flex;align-items:center;justify-content:center;background:#7aa2f71f;border:2px dashed var(--accent);border-radius:14px;pointer-events:none}.chat-drop-overlay-text{background:var(--bg-panel);border:1px solid var(--accent-dark);color:var(--accent);font-weight:600;padding:12px 22px;border-radius:10px}.chat-messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding:4px 4px 16px}.chat-bubble{max-width:78%;padding:10px 14px;border-radius:14px;white-space:pre-wrap;line-height:1.45;font-size:.95rem}.chat-bubble.user{align-self:flex-end;background:var(--user-bubble);border-bottom-right-radius:4px}.chat-bubble.assistant{align-self:flex-start;background:var(--bg-panel);border:1px solid var(--border);border-bottom-left-radius:4px}.chat-bubble.pending{color:var(--text-dim)}.chat-image-preview{display:block;max-width:100%;max-height:240px;border-radius:8px;margin-bottom:8px}.chat-sources{margin-top:10px;padding-top:10px;border-top:1px solid var(--border);font-size:.85rem;color:var(--text-dim)}.chat-sources-title{font-weight:600;margin-bottom:6px}.chat-sources ul{margin:0;padding-left:18px}.chat-sources blockquote{margin:4px 0 8px;padding-left:10px;border-left:2px solid var(--border);font-style:italic}.source-filename{color:var(--text-dim)}.source-link{background:transparent;border:none;padding:0;color:var(--accent);font-size:inherit;font-family:inherit;font-weight:600;text-decoration:underline;cursor:pointer}.source-link:hover{color:var(--text)}.chat-suggestions{display:flex;gap:10px;flex-wrap:wrap;padding:8px 0}.suggestion-chip{background:var(--bg-input);border:1px solid var(--accent-dark);color:var(--accent);border-radius:999px;padding:8px 16px;font-size:.9rem;cursor:pointer}.suggestion-chip:hover{background:var(--accent-dark);color:var(--text)}.chat-input-row{display:flex;align-items:flex-end;gap:8px;padding:12px 0 4px}.chat-input-row textarea{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:10px;color:var(--text);padding:11px 14px;font-size:.95rem;font-family:inherit;resize:none;max-height:200px;overflow-y:auto;line-height:1.4;scrollbar-width:none;-ms-overflow-style:none}.chat-input-row textarea::-webkit-scrollbar{display:none}.chat-input-row textarea:focus{outline:1px solid var(--accent)}button{background:var(--accent-dark);border:none;border-radius:10px;color:var(--text);padding:10px 18px;font-size:.95rem;cursor:pointer;font-family:inherit}button:hover:not(:disabled){background:var(--accent)}button:disabled{opacity:.5;cursor:default}.mic-button,.attach-button{background:var(--bg-input);border:1px solid var(--border);font-size:1.05rem;padding:10px 14px}.hidden-file-input{display:none}.mic-button.recording{background:#8b2f2f;border-color:var(--error);animation:pulse 1.2s infinite}@keyframes pulse{50%{opacity:.6}}.chat-error{color:var(--error);font-size:.85rem;padding:4px 0}.note-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:50}.note-modal{width:min(720px,90vw);height:min(640px,85vh)}.note-modal .note-panel{width:100%;height:100%;border-radius:12px;box-shadow:0 20px 60px #00000080}.graph-area{position:relative;flex:1;display:flex;gap:0;min-height:0}.graph-resize-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:30;cursor:col-resize}.graph-container{flex:1;min-width:0;min-height:0;position:relative;background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;overflow:hidden}.graph-resize-handle{flex-shrink:0;width:12px;margin:0 4px;cursor:col-resize;display:flex;justify-content:center;position:relative}.graph-resize-handle:before{content:"";width:3px;border-radius:3px;background:var(--border);align-self:stretch}.graph-resize-handle:hover:before,.graph-resize-handle.dragging:before{background:var(--accent)}.graph-status{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:var(--text-dim);padding:24px;text-align:center}.graph-status.error{color:var(--error)}.note-panel{width:min(440px,38%);flex-shrink:0;background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;display:flex;flex-direction:column;overflow:hidden}.note-panel-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border)}.note-panel-title{font-weight:600}.note-panel-filename{color:var(--text-dim);font-size:.8rem;margin-top:2px}.note-panel-header button{background:transparent;border:1px solid var(--border);padding:4px 10px}.note-panel-status{padding:20px;color:var(--text-dim)}.note-panel-status.error{color:var(--error)}.note-frame{flex:1;border:none;background:#fff}.coming-soon{align-items:center;justify-content:center;text-align:center}.coming-soon-badge{display:inline-block;background:var(--bg-input);border:1px solid var(--accent-dark);color:var(--accent);border-radius:999px;padding:8px 22px;font-size:1.05rem;font-weight:600}