.rcc-calculator {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #f9f9f9;
}

.rcc-calculator form {
    display: flex;
    flex-direction: column;
}

.rcc-calculator label {
    margin-top: 10px;
}

.rcc-calculator input,
.rcc-calculator select {
    margin-top: 5px;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

.rcc-calculator button {
    margin-top: 20px;
    padding: 10px;
    border: none;
    border-radius: 3px;
    background-color: #0073aa;
    color: white;
    cursor: pointer;
}

.rcc-calculator button:hover {
    background-color: #005177;
}

#rcc-calculator-spinner {
    margin-top: 20px;
    font-weight: bold;
    color: #0073aa;
    display: none;
}

#rcc-calculator-result {
    margin-top: 20px;
    font-weight: bold;
}