.soa-simulateur-oa {
    border: 1px solid #ddd;
    padding: 1.5rem;
    border-radius: 4px;
    background: #fafafa;
    max-width: 700px;
}

.soa-simulateur-oa h3 {
    margin-top: 0;
}

.soa-simulateur-oa fieldset {
    border: 1px solid #ccc;
    padding: 1rem;
    margin-bottom: 1rem;
}

.soa-simulateur-oa label {
    display: block;
    margin-bottom: 0.5rem;
}

.soa-simulateur-oa label span {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.soa-simulateur-oa input,
.soa-simulateur-oa select {
    width: 100%;
    max-width: 300px;
    padding: 0.25rem;
}

.soa-simulateur-oa button[type="submit"] {
    margin-top: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: #0073aa;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

.soa-simulateur-oa button[type="submit"]:hover {
    background-color: #005c87;
}

.soa-resultat {
    margin-top: 1rem;
    padding: 1rem;
    background: #fff;
    border: 1px solid #ddd;
}

.soa-resultat-principal {
    font-size: 1.1rem;
    font-weight: bold;
    margin-top: 0.5rem;
}

.soa-info {
    font-size: 0.9rem;
    color: #555;
}

.soa-note {
    font-size: 0.9rem;
    color: #555;
    margin-top: 0.5rem;
}

.soa-error {
    color: #b00;
    font-weight: bold;
}