* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}
body {
    height: 100vh; /* Full viewport height */
    display: flex;
    justify-content: center;
    align-items: center;
    background: url(../images/containers.jpg) no-repeat center center fixed;
    background-size: cover;
}
/* Apply a transparent background to the card */
.card {
    background: transparent;
    backdrop-filter: blur(5px);
    background-image: linear-gradient(
        120deg,
        rgba(0, 0, 0, 0.2),
        rgba(255, 255, 255, 0.3)
    );
    color: cyan;
    padding: 1rem;

    /* NEW */

    /* width: 100%; allow shrink on small screens */
    /* margin: auto; center horizontally */
}