.modal[open] {
    inline-size: min(90vw, 600px);
    max-inline-size: 600px;
    padding: 2rem;
    border: none;
    border-radius: 0.5rem;
    display: grid;
    gap: 1rem;

    > div {
        display: contents;

        header, footer, h2 {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1rem;
        }
    }
}

.modal::backdrop { background: hsl(0 0% 0% / 0.4); }