body {
    margin: 0;
    padding: 0;
}

.back {
    background: linear-gradient(#acd3f2, transparent);
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.card-greetings {
    width: 80%;
    min-height: 400px;
    text-align: center;
    background: #ffffff;
    border-radius: 1rem;
    padding: 15px;
}

.card-header {
    font-family: "Inter var", ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
    text-align: center;
    font-weight: 700;
    font-size: 2rem;
    color: #369be5;
}

#barcode {
    width: 200px;
    height: 200px;
    margin-top: 40px;
}