.qrgp-app {
    display: flex;
    gap: 20px;
    max-width: 1000px;
    margin: auto;
}

.qrgp-left {
    width: 40%;
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,.08);
}

.qrgp-left input,
.qrgp-left select,
.qrgp-left button {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
}

.qrgp-right {
    width: 60%;
    display: flex;
    justify-content: center;
    align-items: center;
}

#qrPreview {
    padding: 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0,0,0,.1);
}

@media (max-width: 768px) {
    .qrgp-app {
        flex-direction: column;
    }
    .qrgp-left, .qrgp-right {
        width: 100%;
    }
}