@media (max-width: 1360px) {
    .portal-grid {
        grid-template-columns: minmax(0, 1030px);
        justify-content: center;
    }

    .feature-rail {
        display: none;
    }
}

@media (max-width: 900px) {
    .site-header {
        grid-template-columns: 1fr;
        min-height: 128px;
    }

    .hand-note {
        display: none;
    }

    .portal-grid,
    .value-grid {
        width: min(100% - 28px, 720px);
    }

    .portal {
        padding: 16px;
        border-radius: 22px;
    }

    .portal-toolbar {
        grid-template-columns: auto 1fr auto;
        gap: 10px;
    }

    .category-nav {
        display: none;
        flex-wrap: wrap;
        overflow: visible;
    }

    .category-nav.is-open {
        display: flex;
    }

    .category-button {
        flex: 1 0 calc(33.333% - 10px);
        justify-content: center;
    }

    .more-nav {
        flex: 1 0 calc(33.333% - 10px);
    }

    .more-nav > .category-button {
        width: 100%;
    }

    .value-grid {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 18px;
    }
}

@media (max-width: 680px) {
    .site-header {
        min-height: 110px;
    }

    .site-brand > span {
        font-size: 3.2rem;
    }

    .site-brand small {
        font-size: 0.58rem;
        letter-spacing: 0.2em;
        white-space: nowrap;
    }

    .theme-toggle,
    .admin-button {
        display: none;
    }

    .portal-toolbar {
        min-height: 54px;
        min-width: 0;
    }

    .menu-button {
        width: 46px;
        min-width: 46px;
        height: 46px;
    }

    .portal-actions {
        min-width: 0;
    }

    .category-button {
        flex-basis: calc(50% - 10px);
    }

    .search-card,
    .content-card {
        padding: 19px;
    }

    .section-icon {
        width: 48px;
        height: 48px;
        font-size: 1.6rem;
    }

    .search-form {
        min-height: 54px;
        margin-top: 18px;
    }

    .search-submit {
        width: 43px;
        height: 43px;
    }

    .filter-row {
        flex-wrap: nowrap;
        margin-right: -19px;
        padding-right: 19px;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .filter-button {
        flex: 0 0 auto;
    }

    .inspiration-list {
        grid-template-columns: 1fr;
    }

    .entry-list,
    .entry-form,
    .value-grid {
        grid-template-columns: 1fr;
    }

    .site-footer {
        grid-template-columns: 1fr;
        min-height: 80px;
    }

    .site-footer span {
        display: none;
    }

    .site-footer p {
        line-height: 1.8;
    }

    .toolbar-donation > div:first-child {
        display: none;
    }

    .toolbar-donation .donation-buttons button {
        padding-inline: 6px;
    }

}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}