:root{--sentinel-green:#1f8a5f;--sentinel-green-dark:#146245;--sentinel-green-light:#e6f4ee;--sentinel-bg:#f5f7f6;--sentinel-surface:#fff;--sentinel-border:#e2e6e4;--sentinel-text:#1a2420;--sentinel-text-muted:#5c6b64;--sentinel-user-bubble:#eef1f3;--sentinel-assistant-bubble:#eaf6f0;--sentinel-error:#c0392b;--sentinel-radius:12px}*{box-sizing:border-box}body,html{padding:0;margin:0;background:var(--sentinel-bg);color:var(--sentinel-text);font-family:Segoe UI,-apple-system,BlinkMacSystemFont,Roboto,Helvetica,Arial,sans-serif}a{color:var(--sentinel-green-dark)}button,input,select,textarea{font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:#c7d0cb;border-radius:8px}