:root{--bg:#f2f3f5;--surface:#ffffff;--surface-muted:#f5f5f5;--line:#e6e6e8;--text:#171717;--muted:#737373;--chrome:rgba(255,255,255,0.96);--button-bg:#171717;--button-text:#ffffff;--button-hover:#353535;--hover:#eeeeef;--disabled-bg:#ececee;--disabled-text:#88888b;--input-line:#dcdcdf;--segment-bg:#ededf0;--logo-filter:none;--success-text:#256447;--success-bg:#eef7f1;--error-text:#a43a36;--error-bg:#fff2f1;--warning-text:#806023;--warning-bg:#fff8e8;color-scheme:light;--max-width:480px;--font-sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI","Helvetica 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