.kk-wrapper {
    max-width: 600px;
    margin: auto;
    background: #fef9e7;
    border: 2px solid #0051ba;
    padding: 20px;
    border-radius: 12px;
    font-family: inherit;
}

.kk-wrapper label {
    font-weight: bold;
    margin-top: 12px;
    display: block;
    color: #0051ba;
}

.kk-wrapper select {
    width: 100%;
    padding: 8px;
    margin-top: 4px;
    border-radius: 6px;
    border: 1px solid #0051ba;
    font-size: 15px;
}

#kk-szamol {
    width: 100%;
    background: #ffcc00;
    color: #0051ba;
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-size: 16px;
    margin-top: 18px;
    cursor: pointer;
    font-weight: bold;
}

#kk-szamol:hover {
    background: #f5c400;
}

#kk-result {
    margin-top: 20px;
    font-weight: bold;
    font-size: 18px;
    color: #000;
}