/* Safe layout fixes to prevent header overlap and keep card nicely centered */
body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ensure navbar sits above content */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
}

/* reserve space for navbar so content doesn't hide under it */
main {
    padding-top: 88px; /* increase if your navbar is taller (e.g. 110px) */
    padding-bottom: 40px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: calc(100vh - 88px);
}

/* card tweaks */
.create-card {
    width: 100%;
    max-width: 720px;
    margin: 12px;
    box-sizing: border-box;
}

/* mobile tweaks */
@media (max-width: 768px) {
    main {
        padding-top: 72px;
        padding-left: 12px;
        padding-right: 12px;
    }

    .create-card {
        padding: 20px;
    }
}

@media (max-width: 420px) {
    main {
        padding-top: 64px;
    }

    .create-card {
        padding: 14px;
    }
}