.tool-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}

.tool-title {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
}

.qr-generator {
    display: flex;
    gap: 40px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.qr-input-section {
    flex: 1;
    min-width: 300px;
}

.input-group {
    margin-bottom: 24px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.input-group input[type="text"],
.input-group select,
.input-group input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.input-group input[type="text"]:focus,
.input-group select:focus,
.input-group input[type="file"]:focus {
    border-color: #6B73FF;
    outline: none;
}

.qr-options {
    display: grid;
    gap: 20px;
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.option-group label {
    color: #555;
    font-weight: 500;
}

.option-group select,
.option-group input[type="color"] {
    padding: 8px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
}

.option-group select:focus,
.option-group input[type="color"]:focus {
    border-color: #6B73FF;
    outline: none;
}

.qr-preview-section {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

#qr-preview {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.download-button {
    padding: 12px 24px;
    background: #6B73FF;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.download-button:hover {
    background: #5158FF;
    transform: translateY(-1px);
}

.download-button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

@media (max-width: 768px) {
    .qr-generator {
        flex-direction: column;
        gap: 30px;
    }
    
    .qr-input-section,
    .qr-preview-section {
        width: 100%;
    }
}