.qrcode-section{
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.qrcode-section textarea {
    resize: none;
    margin-bottom: 1rem;
}
.qrcode-controls {
    display: none; 
    max-width: 500px;
    margin: 10px auto;
}
.qrcode-section input[type="range"] {
    width: 100%;
}
.qrcode-section button {
    padding: 10px 20px;
    font-size: 16px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.qrcode-section button:hover {
    background: #0056b3;
}
.qrcode-section .qrcode-wrapper {
    width: 100%;
    max-width: 320px; 
    height: 320px;
    margin: 0 auto 20px auto;
    text-align: center;
    box-sizing: border-box;
    opacity: 1; 
    transition: opacity 0.3s ease;
    border-radius: 8px;
}

.qrcode-section #qrcode-preview img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.qrcode-section #qrcode {
    visibility: hidden;
    height: 0;
    overflow: hidden;
}

.qrcode-section #qr-canvas {
    display: none;
}

.qrcode-section #download-btn {
    display: none;
}

@media screen and (max-width: 767px) {
    .qrcode-col-right {
        margin-top: 32px;
    }

    .qrcode-section .qrcode-wrapper {
        max-width: 100%;
        height: auto;
    }

    .qrcode-section #qrcode-preview img {
        width: 100%;
        height: auto;
    }
}