:root{--bg: #0f1419;--panel: #1a2027;--panel-2: #232b35;--text: #e6edf3;--muted: #8b98a5;--accent: #3b82f6;--user: #2563eb;--border: #2d3742;--error: #f87171}*{box-sizing:border-box}body{margin:0}.app{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);height:100vh;display:flex;flex-direction:column}.app-header{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;align-items:baseline;gap:12px}.app-header h1{font-size:18px;margin:0}.subtitle{color:var(--muted);font-size:13px}.auth-warn{margin-left:auto;color:var(--error);font-size:12px}.app-main{flex:1;overflow:hidden;display:flex;justify-content:center}.app-footer{padding:8px 20px;border-top:1px solid var(--border);color:var(--muted);font-size:12px;text-align:center}.chat{width:100%;max-width:860px;display:flex;flex-direction:column;height:100%}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px}.empty{color:var(--muted);margin:auto;text-align:center}.suggestions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:12px}.chip{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:16px;padding:6px 12px;font-size:13px;cursor:pointer}.chip:hover{border-color:var(--accent)}.bubble{padding:12px 14px;border-radius:12px;max-width:90%;line-height:1.45}.bubble-user{background:var(--user);align-self:flex-end}.bubble-assistant{background:var(--panel);align-self:flex-start;border:1px solid var(--border);width:100%}.bubble-text{white-space:pre-wrap}.table-wrap{margin-top:10px;overflow-x:auto}.result-table{border-collapse:collapse;width:100%;font-size:13px}.result-table th,.result-table td{border:1px solid var(--border);padding:5px 8px;text-align:left}.result-table th{background:var(--panel-2);position:sticky;top:0}.row-count{color:var(--muted);font-size:12px;margin-top:4px;display:flex;align-items:center;gap:12px}.csv-btn{background:transparent;color:var(--accent);border:1px solid var(--accent);border-radius:6px;padding:2px 10px;font-size:12px;cursor:pointer}.csv-btn:hover{background:var(--accent);color:#fff}.notice{margin-top:8px;color:var(--muted);font-size:12px}.notice.error{color:var(--error)}.sql-disclosure{margin-top:10px}.sql-toggle{background:transparent;color:var(--accent);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font-size:12px;cursor:pointer}.sql-block{margin:8px 0 0;background:#0b0f14;border:1px solid var(--border);border-radius:8px;padding:12px;overflow-x:auto;font-size:12.5px}.composer{display:flex;gap:8px;padding:14px 20px;border-top:1px solid var(--border)}.composer-input{flex:1;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:14px}.composer-input:focus{outline:none;border-color:var(--accent)}.composer-send{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:0 18px;font-size:14px;cursor:pointer}.composer-send:disabled{opacity:.5;cursor:not-allowed}