:root{--bg-primary: #0f1117;--bg-secondary: #1a1d27;--bg-tertiary: #242836;--bg-input: #1e2130;--text-primary: #e4e6eb;--text-secondary: #9ca3af;--text-muted: #6b7280;--accent: #6366f1;--accent-hover: #818cf8;--border: #2d3141;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--confidence-exact: #10b981;--confidence-estimated: #f59e0b;--confidence-unavailable: #6b7280;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color:var(--text-primary);background-color:var(--bg-primary);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-height:100vh}#root{min-height:100vh;display:flex}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app{display:flex;width:100%;min-height:100vh}.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:16px 20px;border-bottom:1px solid var(--border)}.sidebar-header h1{font-size:16px;font-weight:600;color:var(--text-primary)}.sidebar-header .subtitle{font-size:11px;color:var(--text-muted);margin-top:2px}.logout-btn{margin-top:8px;padding:3px 8px;font-size:11px;color:var(--text-muted);background:none;border:1px solid var(--border);border-radius:4px;cursor:pointer}.logout-btn:hover{color:var(--text-primary);border-color:var(--text-muted)}.new-chat-btn{margin:12px 12px 0;padding:10px 16px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;text-align:left}.new-chat-btn:hover:not(:disabled){background:var(--accent);border-color:var(--accent);color:#fff}.new-chat-btn:disabled{opacity:.4;cursor:not-allowed}.conversation-list{flex:1;overflow-y:auto;padding:8px 8px 0;min-height:0}.conversation-item{position:relative;padding:10px 12px;border-radius:8px;cursor:pointer;transition:background .15s}.conversation-item:hover,.conversation-item.active{background:var(--bg-tertiary)}.conversation-item-title{font-size:13px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:20px}.conversation-item-date{font-size:11px;color:var(--text-muted);margin-top:2px}.conversation-item-delete{position:absolute;top:8px;right:8px;width:22px;height:22px;border:none;background:none;color:var(--text-muted);font-size:16px;line-height:1;border-radius:4px;cursor:pointer;opacity:0;transition:opacity .15s,background .15s;display:flex;align-items:center;justify-content:center}.conversation-item:hover .conversation-item-delete{opacity:1}.conversation-item-delete:hover{background:var(--border);color:var(--text-primary)}.sidebar-nav{padding:12px;flex-shrink:0}.sidebar-nav-item{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:6px;color:var(--text-muted);font-size:13px;transition:background .15s}.sidebar-nav-item.active{background:var(--bg-tertiary);color:var(--text-primary);cursor:default}.sidebar-nav-item:not(.active){opacity:.5;cursor:default}.main{flex:1;display:flex;flex-direction:column;min-width:0}.chat-messages{flex:1;overflow-y:auto;padding:20px 0}.messages-container{max-width:800px;margin:0 auto;padding:0 20px}.message{margin-bottom:24px}.message-user{display:flex;justify-content:flex-end}.message-user .message-content{background:var(--accent);color:#fff;border-radius:16px 16px 4px;padding:10px 16px;max-width:70%;font-size:14px}.message-assistant .message-content{font-size:14px;line-height:1.6;color:var(--text-primary)}.message-assistant .message-content p{margin-bottom:8px}.message-assistant .message-content p:last-child{margin-bottom:0}.message-assistant .message-content code{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-size:13px;font-family:JetBrains Mono,Fira Code,monospace}.message-assistant .message-content pre{background:var(--bg-tertiary);border-radius:8px;padding:12px 16px;overflow-x:auto;margin:8px 0}.message-assistant .message-content pre code{background:none;padding:0}.message-assistant .message-content a{color:var(--accent-hover);text-decoration:underline}.message-assistant .message-content blockquote{border-left:3px solid var(--border);padding-left:12px;margin:8px 0;color:var(--text-secondary)}.message-assistant .message-content table{width:100%;border-collapse:collapse;margin:8px 0;font-size:13px}.message-assistant .message-content th,.message-assistant .message-content td{border:1px solid var(--border);padding:6px 12px;text-align:left}.message-assistant .message-content th{background:var(--bg-tertiary);font-weight:600;color:var(--text-secondary)}.message-assistant .message-content hr{border:none;border-top:1px solid var(--border);margin:12px 0}.message-assistant .message-content ul,.message-assistant .message-content ol{padding-left:20px;margin:8px 0}.message-assistant .message-content li{margin-bottom:4px}.tool-status{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-tertiary);border-radius:8px;font-size:12px;color:var(--text-secondary);margin:8px 0}.tool-status .spinner{width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}.tool-status.complete .spinner{border-color:var(--success);border-top-color:var(--success);animation:none}.tool-status.error .spinner{border-color:var(--error);border-top-color:var(--error);animation:none}@keyframes spin{to{transform:rotate(360deg)}}.chat-input-area{border-top:1px solid var(--border);padding:16px 20px}.chat-input-container{max-width:800px;margin:0 auto;display:flex;gap:8px}.chat-input{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:12px;padding:12px 16px;color:var(--text-primary);font-size:14px;font-family:inherit;resize:none;outline:none;min-height:44px;max-height:200px}.chat-input:focus{border-color:var(--accent)}.chat-input::placeholder{color:var(--text-muted)}.chat-send-btn{background:var(--accent);color:#fff;border:none;border-radius:12px;padding:0 20px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s;white-space:nowrap}.chat-send-btn:hover:not(:disabled){background:var(--accent-hover)}.chat-send-btn:disabled{opacity:.5;cursor:not-allowed}.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:12px 0}.kpi-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:16px}.kpi-card.confidence-exact{border-left:3px solid var(--confidence-exact)}.kpi-card.confidence-estimated{border-left:3px solid var(--confidence-estimated)}.kpi-card.confidence-unavailable{border-left:3px solid var(--confidence-unavailable);opacity:.7}.kpi-label{font-size:12px;color:var(--text-secondary);font-weight:500;text-transform:uppercase;letter-spacing:.5px}.kpi-value{font-size:28px;font-weight:700;margin:4px 0;color:var(--text-primary)}.kpi-card.confidence-estimated .kpi-value{color:var(--confidence-estimated)}.kpi-card.confidence-unavailable .kpi-value{color:var(--confidence-unavailable)}.kpi-trend{display:flex;align-items:center;gap:4px;font-size:12px}.kpi-trend.up{color:var(--success)}.kpi-trend.down{color:var(--error)}.kpi-trend.flat{color:var(--text-muted)}.kpi-subtitle{font-size:11px;color:var(--text-muted);margin-top:4px}.kpi-confidence-badge{display:inline-block;font-size:10px;padding:2px 6px;border-radius:4px;margin-top:6px;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.kpi-confidence-badge.exact{background:#10b98126;color:var(--confidence-exact)}.kpi-confidence-badge.estimated{background:#f59e0b26;color:var(--confidence-estimated)}.kpi-confidence-badge.unavailable{background:#6b728026;color:var(--confidence-unavailable)}.chart-container{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:16px;margin:12px 0}.chart-title{font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.chart-freshness{font-size:11px;color:var(--text-muted);margin-top:8px}.data-table-container{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;overflow:hidden;margin:12px 0}.data-table-title{font-size:14px;font-weight:600;padding:12px 16px;border-bottom:1px solid var(--border)}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th{background:var(--bg-tertiary);padding:8px 16px;text-align:left;font-weight:600;color:var(--text-secondary);font-size:11px;text-transform:uppercase;letter-spacing:.5px}.data-table td{padding:8px 16px;border-top:1px solid var(--border);color:var(--text-primary)}.data-table tr:hover td{background:var(--bg-tertiary)}.welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:40px}.welcome h2{font-size:24px;font-weight:600;margin-bottom:8px}.welcome p{color:var(--text-secondary);font-size:14px;max-width:500px;margin-bottom:24px}.welcome-suggestions{display:flex;flex-direction:column;gap:8px;width:100%;max-width:500px}.welcome-suggestion{background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;padding:12px 16px;text-align:left;font-size:13px;color:var(--text-secondary);cursor:pointer;transition:all .15s}.welcome-suggestion:hover{border-color:var(--accent);color:var(--text-primary);background:var(--bg-tertiary)}.streaming-cursor:after{content:"";display:inline-block;width:2px;height:14px;background:var(--accent);margin-left:2px;vertical-align:text-bottom;animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}.chart-loading{display:flex;align-items:center;justify-content:center;height:300px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;color:var(--text-muted);font-size:13px;margin:12px 0}@media(max-width:768px){.sidebar{display:none}.messages-container{padding:0 12px}.chat-input-area{padding:12px}.welcome{padding:20px 12px}.welcome-suggestions{max-width:100%}.kpi-grid{grid-template-columns:1fr}.message-user .message-content{max-width:85%}}