*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#0d0d0d;--bg-secondary:#1a1a1a;--bg-input:#242424;--bg-user-bubble:#1d3a5f;--bg-ai-bubble:#1e1e1e;--border:#2e2e2e;--text-primary:#f0f0f0;--text-secondary:#9a9a9a;--accent:#4f8ef7;--radius:12px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}body,html{height:100%;background:var(--bg-primary);color:var(--text-primary);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}@media (max-width:420px){.tagline-hide{display:none!important}}@supports (-webkit-touch-callout:none){input,select,textarea{font-size:16px!important}}