.qrcodegen-frontend-wrapper {
    max-width: 1000px;
    margin: 20px auto;
    font-family: Arial, sans-serif;
    background: #f0f0f0;
    padding: 10px;
    border: 1px solid #ccc;
}

.qrcodegen-frontend-wrapper .qrcodegen-main-ui {
    background: #fff;
    border: 1px solid #999;
}

.qrcodegen-frontend-wrapper .qrcodegen-tabs {
    display: flex;
    flex-wrap: wrap;
    background: #e0e0e0;
    border-bottom: 1px solid #999;
}

.qrcodegen-frontend-wrapper .tab-link {
    padding: 10px 20px;
    border: 1px solid #999;
    border-bottom: none;
    background: #f0f0f0;
    cursor: pointer;
    font-size: 14px;
    margin-right: 2px;
}

.qrcodegen-frontend-wrapper .tab-link.active {
    background: #fff;
    font-weight: bold;
    border-bottom: 1px solid #fff;
    margin-bottom: -1px;
}

.qrcodegen-frontend-wrapper .qrcodegen-content-container {
    display: flex;
    flex-wrap: wrap;
    padding: 10px;
    background: #add8e6;
    min-height: 300px;
}

.qrcodegen-frontend-wrapper .qrcodegen-inputs-panel {
    flex: 2;
    min-width: 300px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    align-content: start;
}

.qrcodegen-frontend-wrapper .input-group {
    display: flex;
    align-items: center;
    gap: 5px;
}

.qrcodegen-frontend-wrapper .input-group.full-width {
    grid-column: span 2;
}

.qrcodegen-frontend-wrapper label {
    min-width: 100px;
    font-size: 13px;
    font-weight: normal;
}

.qrcodegen-frontend-wrapper input, .qrcodegen-frontend-wrapper select, .qrcodegen-frontend-wrapper textarea {
    flex: 1;
    padding: 5px;
    border: 1px solid #999;
}

.qrcodegen-frontend-wrapper .qrcodegen-preview-panel {
    flex: 1;
    min-width: 250px;
    background: #fff;
    margin-left: 10px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid #ccc;
}

#qrcode-preview {
    width: 350px;
    height: 350px;
    background: #f9f9f9;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
    border: 1px solid #ddd;
}

.qrcodegen-btn-secondary {
    width: 100%;
    padding: 10px;
    background: #eee;
    border: 1px solid #ccc;
    cursor: pointer;
    font-size: 14px;
    text-transform: uppercase;
}

.qrcodegen-main-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px;
    background: #fff;
}

.qrcodegen-btn {
    flex: 1;
    min-width: 120px;
    padding: 12px 20px;
    background: linear-gradient(135deg, #2271b1 0%, #135e96 100%);
    border: none;
    color: white;
    cursor: pointer;
    font-weight: bold;
    border-radius: 6px;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.qrcodegen-btn:hover {
    background: linear-gradient(135deg, #135e96 0%, #0d4a7a 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

#generate-qr-btn {
    background: linear-gradient(135deg, #28a745 0%, #218838 100%);
}

#generate-qr-btn:hover {
    background: linear-gradient(135deg, #218838 0%, #1e7e34 100%);
}

#copy-clipboard-btn {
    background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
    color: #212529;
}

#copy-clipboard-btn:hover {
    background: linear-gradient(135deg, #e0a800 0%, #d39e00 100%);
}

#save-to-file-btn {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
}

#save-to-file-btn:hover {
    background: linear-gradient(135deg, #138496 0%, #117a8b 100%);
}

#save-qr-btn {
    background: linear-gradient(135deg, #6610f2 0%, #520dc2 100%);
}

#save-qr-btn:hover {
    background: linear-gradient(135deg, #520dc2 0%, #480ba3 100%);
}

@media (max-width: 768px) {
    .qrcodegen-frontend-wrapper .qrcodegen-content-container {
        flex-direction: column;
    }
    
    .qrcodegen-frontend-wrapper .qrcodegen-inputs-panel {
        grid-template-columns: 1fr;
    }
    
    .qrcodegen-frontend-wrapper .qrcodegen-preview-panel {
        margin-left: 0;
        margin-top: 20px;
    }
    
    .qrcodegen-main-actions {
        flex-direction: column;
    }
    
    .qrcodegen-db-save-row {
        flex-direction: column;
    }
}

.qrcodegen-save-section {
    padding: 15px;
    border-top: 1px solid #ccc;
    background: #fff;
}

.qrcodegen-db-save-row {
    display: flex;
    gap: 10px;
}

.qrcodegen-db-save-row input {
    flex: 1;
    padding: 8px;
    border: 1px solid #999;
}

.qrcodegen-progress-container {
    width: 100%;
    background-color: #f1f1f1;
    border: 1px solid #ccc;
    margin-bottom: 10px;
    border-radius: 4px;
    overflow: hidden;
}

#qrcodegen-progress-bar {
    width: 0%;
    height: 25px;
    background-color: #2271b1;
    text-align: center;
    line-height: 25px;
    color: white;
    transition: width 0.3s ease;
}