@media (max-width: 900px) {
    .f4-menu {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .f4-menu__side {
        border-right: none;
        border-bottom: 1px solid var(--white10);
        padding-bottom: 14px;
    }

    .f4-menu__nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .f4-menu__side-hint,
    .f4-howto {
        display: none;
    }

    .pay-provider--f4 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .shop-grid {
        grid-template-columns: 1fr;
    }

    .f4-shell {
        padding: 16px 14px 18px;
        border-radius: 10px;
    }

    .page--f4 .site-header {
        display: block;
    }

    .site-nav {
        display: none;
    }

    .title {
        font-size: 1.4rem;
    }

    .page-bg__orb {
        opacity: 0.2;
        filter: blur(60px);
    }

    .card:hover {
        background: var(--white10);
    }

    .wrapper--f4 {
        padding: 20px 14px;
        min-height: calc(100vh - var(--header-h));
    }

    .f4-menu__actions {
        width: 100%;
    }

    .f4-pill {
        flex: 1;
    }

    .pay-provider--f4 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .card {
        padding: 20px 16px 18px;
    }

    .amount-presets {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }

    .preset {
        padding: 0 8px;
        text-align: center;
    }

    .pay-provider {
        grid-template-columns: 1fr;
    }

    .wrapper {
        padding: 20px 14px;
    }

    .f4-donate__submit {
        max-width: none;
    }

    .f4-menu__top {
        flex-direction: column;
        align-items: stretch;
    }
}