#fuel-calculator {
    max-width: 720px;
    margin: 0 auto 40px;
}

#fuel-calculator-form {
    display: grid;
    gap: 14px;
}

#fuel-calculator-form label {
    font-weight: 600;
}

#fuel-calculator-form input,
#fuel-calculator-form select {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid #d6d6d6;
    border-radius: 4px;
    background: #fff;
}

#calculate-button {
    min-height: 48px;
    padding: 12px 18px;
    border: 1px solid #5ed299;
    border-radius: 4px;
    color: #fff;
    background: #5ed299;
    cursor: pointer;
}

#fuel-calculator-result {
    margin-top: 20px;
    font-weight: 600;
}