:root{--font-system:system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";--font-display:var(--font-system);--font-body:var(--font-system);--surface:#ffffff;--surface-muted:#f1efe9;--line:rgba(15,22,32,0.12);--ink:#121722;--ink-muted:rgba(18,23,34,0.62);--accent:#3473f0;--surface-page:#f7f6f2;--surface-panel:#f8f7f3;--surface-rail:#eeece5;--surface-user-message:#e9e6dd;--surface-code:#252923;--surface-danger:#f8eae7;--message-ink:#20242c;--code-ink:#f7f6f0;--strong-control:#1d2c28;--strong-control-hover:#29423b;--strong-control-ink:#f9f7f0;--link:#245fc9;--success:#4f8f68;--success-ring:#dbe8dc;--success-inset:#dce9df;--danger:#b9574d;--danger-ink:#6f2d28;--danger-inset:#f2ddda;--status-neutral:#73776f}*,:after,:before{box-sizing:border-box}body{margin:0;font-family:var(--font-body);background-color:var(--surface);color:var(--ink);min-height:100vh}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit}