.card {
    transition: transform 0.2s;
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.qr-code {
    max-height: 200px;
    width: auto;
    border: 1px solid #eee;
    padding: 10px;
    background: white;
}