.llc-container {
    max-width: 450px;
    padding: 20px;
    margin: auto;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.llc-container input,
.llc-container select {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid #cfcfcf;
    border-radius: 5px;
}

#llc_calc_btn {
    width: 100%;
    padding: 12px;
    background: #0073aa;
    border: none;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

.llc-box {
    margin-top: 20px;
    padding: 15px;
    background: #f5f5f5;
    border-radius: 6px;
}