.rcs-check-form {
    background: #1e1e1e;
    color: #f0f0f0;
    border: 1px solid #444;
    padding: 15px;
    margin-top: 15px;
    border-radius: 8px;
}
.rcs-check-form input[type=text],
.rcs-check-form .rcs-check-buy {
    width: 100%;
    margin-bottom: 10px;
    padding: 10px;
    background: #2c2c2c;
    color: #fff;
    border: 1px solid #555;
    border-radius: 4px;
}
.rcs-check-form .rcs-check-buy {
    cursor: pointer;
    background-color: #0073aa;
    border: none;
}
.rcs-check-form .rcs-check-buy:hover {
    background-color: #005f8d;
}
.rcs-check-form .rcs-check-status {
    margin-top: 10px;
    font-weight: bold;
    color: #00c853;
}