.fuel-cost-main { max-width: 620px; }
.fuel-cost-form, .fuel-cost-result { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow); }
.fuel-cost-form { display: grid; gap: 15px; }
.fuel-cost-form label { display: grid; gap: 7px; color: var(--ink); font-size: 13px; font-weight: 650; }
.fuel-cost-form input, .fuel-cost-form select { width: 100%; min-height: 43px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); color: var(--ink); font: inherit; }
.fuel-price-row { display: grid; grid-template-columns: minmax(0, 1fr) 110px; gap: 12px; }
.fuel-cost-form button { justify-self: start; min-height: 43px; padding: 0 16px; }
.fuel-cost-error { margin: 0; color: var(--danger); font-size: 12px; }
.fuel-cost-result { margin-top: 15px; }
.fuel-cost-result h2 { margin: 0 0 12px; color: var(--ink-soft); font-size: 13px; }
.fuel-cost-result p { display: flex; justify-content: space-between; gap: 16px; margin: 8px 0; color: var(--ink-soft); font-size: 13px; }
.fuel-cost-result output { color: var(--accent); font-weight: 750; font-variant-numeric: tabular-nums; text-align: right; }
@media (max-width: 480px) { .fuel-cost-form, .fuel-cost-result { padding: 18px; } }