.rc-converter-fieldset {
    border: 1px solid #4a3c28;
    border-radius: 4px;
    margin-bottom: 25px;
    padding: 15px;
}
.rc-converter-fieldset legend {
    color: #c89b3c;
    padding: 0 10px;
    font-weight: 700;
}

.rc-converter-fieldset {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
}

#rc-result {
    margin-top: 20px;
    padding: 15px;
    background-color: rgba(200, 155, 60, 0.1);
    border: 1px solid #c89b3c;
    border-radius: 4px;
    font-size: 1.2em;
    color: #f0e6d2;
    text-align: center;
}

#calculate-rc-btn {
    display: none;
}

@media (max-width: 768px) {
    .rc-converter-fieldset {
        grid-template-columns: 1fr; 
    }
}