.calculator{max-width:780px;margin:2rem auto;padding:clamp(1rem,3vw,2rem);border:1px solid #cbd5d1;border-radius:16px;background:#f7faf8;color:#17352f}.calculator fieldset{border:0;margin:0 0 1rem;padding:0}.calculator legend{font-weight:700;margin-bottom:.75rem}.calculator label{display:block;font-weight:600;margin:.9rem 0}.calculator input,.calculator select{display:block;width:100%;box-sizing:border-box;padding:.8rem;margin-top:.35rem;font:inherit;background:white;color:#17352f;border:1px solid #71857a;border-radius:6px}.calculator button{font:inherit;padding:.9rem 1.3rem;background:#17352f;color:white;border:0;border-radius:8px;cursor:pointer}.calculator :focus-visible{outline:3px solid #2679c5;outline-offset:3px}.calculator [data-result]:not(:empty){padding:1rem;background:#e0efdf;margin-top:1rem;font-weight:600}.calculator [data-error]{color:#9b1c1c}.calculator [hidden]{display:none!important}.calculator .help{font-size:.9rem;font-weight:400;line-height:1.6}