:root{color-scheme:light;--bg:#ffffff;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--panel:#f8fafc;--blue:#2563eb;--green:#16a34a;--user:#dbeafe;--assistant:#f1f5f9;--error-bg:#fef2f2;--error-border:#fecaca;--error-text:#991b1b;--input-bg:#ffffff;--code-bg:rgba(15,23,42,0.06);--table-header-bg:rgba(15,23,42,0.04);--popover-shadow:rgba(15,23,42,0.08);--button-text:#ffffff}[data-theme=dark]{color-scheme:dark;--bg:#0f172a;--text:#f1f5f9;--muted:#94a3b8;--border:#334155;--panel:#1e293b;--blue:#60a5fa;--green:#4ade80;--user:#1e3a5f;--assistant:#273549;--error-bg:#450a0a;--error-border:#991b1b;--error-text:#fecaca;--input-bg:#0f172a;--code-bg:rgba(255,255,255,0.08);--table-header-bg:rgba(255,255,255,0.06);--popover-shadow:rgba(0,0,0,0.35);--button-text:#ffffff}body,html{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Noto Sans,Liberation Sans,sans-serif;transition:background-color .15s ease,color .15s ease}button,input,textarea{font:inherit}