:root{--bg:#0f1115;--panel:#171a21;--border:#262b36;--text:#e6e8ee;--muted:#9aa3b2;--accent:#4f8cff;--error:#ff6b6b;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:15px/1.5 ui-sans-serif,system-ui,-apple-system,sans-serif}.app{max-width:1100px;margin:0 auto;padding:0 16px}.topbar{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;margin-bottom:20px;padding:14px 0;display:flex}.topbar nav{align-items:center;gap:16px;display:flex}.topbar a{color:var(--muted);text-decoration:none}.topbar a:hover{color:var(--text)}.auth-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;max-width:380px;margin:12vh auto;padding:28px}.auth-card h1{margin:0 0 6px}.muted{color:var(--muted)}.divider{text-align:center;color:var(--muted);margin:16px 0;font-size:13px}input,textarea{background:var(--bg);width:100%;color:var(--text);border:1px solid var(--border);font:inherit;border-radius:8px;margin-bottom:10px;padding:10px 12px}button{border:1px solid var(--border);background:var(--accent);color:#fff;font:inherit;cursor:pointer;border-radius:8px;padding:10px 14px}button:disabled{opacity:.6;cursor:not-allowed}.demo-button{width:100%}.link-button{color:var(--muted);background:0 0;border:none;padding:8px 0;text-decoration:underline}.error{color:var(--error);font-size:14px}.chat{grid-template-columns:240px 1fr;gap:20px;display:grid}.sidebar{border-right:1px solid var(--border);padding-right:16px}.sidebar button{text-align:left;width:100%;color:var(--muted);background:0 0;margin-bottom:4px}.sidebar button.active{color:var(--text);background:var(--panel)}.messages{flex-direction:column;gap:14px;min-height:50vh;display:flex}.message{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px 14px}.message.user{color:var(--muted);background:0 0;border-color:#0000}.message.ungrounded{border-color:#6b5a1f}.sources{flex-wrap:wrap;gap:6px;margin-top:10px;display:flex}.source-chip{background:var(--bg);border:1px solid var(--border);color:var(--muted);cursor:help;border-radius:999px;padding:4px 8px;font-size:12px}.doc-row{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:10px 0;display:flex}.status{border:1px solid var(--border);border-radius:999px;padding:2px 8px;font-size:12px}.status.ready{color:#63d67d}.status.processing{color:#d6c163}.status.error{color:var(--error)}@media (width<=720px){.chat{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--border);padding-bottom:12px}}