:root{--altcha-border-width:1px;--altcha-border-radius:0;--altcha-color-base:#fff;--altcha-color-border:#ced4da;--altcha-color-text:currentColor;--altcha-color-border-focus:currentColor;--altcha-color-error-text:#dc0b32;--altcha-color-footer-bg:#f4f4f4;--altcha-max-width:260px}