.fuel-calculator{margin:2rem 0;padding:1.25rem;border:1px solid var(--line);border-radius:8px}
.fuel-calculator .fuel-units label{display:block;margin:.25rem 0}
.fuel-calculator .fuel-fields{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));margin:1rem 0}
.fuel-calculator label{display:block;font-weight:600;margin-bottom:.25rem}
.fuel-calculator input[type=number]{width:100%;padding:.5rem;font:inherit}
.fuel-calculator .fuel-source{font-size:.9rem;margin:.35rem 0 0}
.fuel-calculator .fuel-error{color:#ffb4ab;font-weight:600}
.fuel-calculator .fuel-results{display:grid;gap:.75rem;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr));margin-top:1rem}
.fuel-calculator .fuel-results dt{font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}
.fuel-calculator .fuel-results dd{margin:0;font-size:1.35rem;font-weight:700}

.fuel-calculator .fuel-results[hidden]{display:none}.fuel-calculator input[type=radio]{width:auto;margin-right:.5rem}