.app-shell {
    display: grid;
    grid-template-columns: minmax(0,1fr);
    min-height: calc(100vh - var(--header-height));
}

.page-content { min-width: 0; }

.home-grid {
    display: grid;
    grid-template-columns: minmax(0,1.62fr) minmax(310px,1fr);
    gap: 16px;
}

.feed-column {
    min-width: 0;
}

.page-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    margin: var(--space-3) 0 var(--space-5);
}

.actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.two-columns {
    display: grid;
    grid-template-columns: minmax(0,1.6fr) minmax(300px,1fr);
    gap: var(--space-5);
}

.form-page,.editor-page { margin: 14px auto; }

.reading-width {
    max-width: var(--page-width-narrow);
    margin: auto;
}

.full-width {
    width: 100%;
}

.back-link {
    display: inline-flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

@media (max-width: 1250px) {
    .home-grid {
        grid-template-columns: minmax(0,1fr) 320px;
    }
    .two-columns {
        grid-template-columns: minmax(0,1fr) minmax(280px,.8fr);
    }
}

@media (max-width: 1050px) {
    .home-grid {
        grid-template-columns: 1fr;
    }
    .home-aside {
        max-width: 600px;
        margin: 0 auto;
    }
    .two-columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .app-shell {
        display: block;
    }
    .page-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 1rem;
    }
    .two-columns {
        gap: 1rem;
    }
}

.site-footer { margin:3rem auto 0; border-top:1px solid var(--line); color:var(--muted); font-size:var(--text-small); }
.site-footer>nav { display:flex; flex-wrap:wrap; gap:.75rem 1.25rem; margin-top:1.1rem; }
.site-footer a:hover { text-decoration:underline; }

.back-link { width: fit-content; min-height: 44px; padding: .6rem .85rem; gap: .65rem; border: 1px solid var(--line); border-radius: var(--radius-small); background: var(--surface); font-weight: 600; font-size: var(--text-small); }
.back-link:hover { background: var(--sage); color: var(--green); border-color: var(--green); }