.rgc-wrapper {
    background: #070735;
    padding: 30px;
    border-radius: 10px;
    max-width: 1100px;
    margin: 30px auto;
    font-family: Arial, sans-serif;
}

.rgc-wrapper h2 {
    color: #fff;
    text-align: center;
    margin-bottom: 25px;
    font-size: 38px;
    font-weight: 700;
}

.rgc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.rgc-grid input,
.rgc-grid select {
    height: 55px;
    border: none;
    border-radius: 6px;
    padding: 0 15px;
    font-size: 18px;
    background: #e5e5e5;
}

.rgc-grid button {
    height: 55px;
    border: none;
    border-radius: 6px;
    background: #00e676;
    color: #000;
    font-size: 20px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
}

.rgc-grid button:hover {
    opacity: 0.9;
}

#gold_result {
    margin-top: 25px;
    text-align: center;
    color: #fff;
    font-size: 28px;
    font-weight: bold;
}

@media(max-width: 768px) {

    .rgc-grid {
        grid-template-columns: 1fr;
    }

    .rgc-wrapper h2 {
        font-size: 28px;
    }

}