@media (max-width: 620px) {
    body {
        font-size: 1.0625rem;
    }

    /* The wrap treatment is the base rule now, at every width. A phone only
       needs the size step. */
    .turn-code {
        font-size: 0.75rem;
    }

    .soul-economy {
        margin-left: 0;
    }

    .chapter-head,
    .ledger-row,
    .timeline-item {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
    }

    .ledger::before,
    .ledger-row::before {
        display: none;
    }

    .chapter-mark {
        margin-bottom: 0.9rem;
        padding-top: 0;
    }

    .chapter-mark::after {
        display: none;
    }

    .ledger-fact {
        grid-column: 1;
    }

    .timeline-item {
        padding-left: 1.6rem;
    }

    .timeline-item::before {
        left: 6px;
        top: 1.5rem;
    }

    .timeline-marker {
        position: absolute;
        left: 0;
        top: 0.35rem;
        margin-top: 0;
    }

    /* The phone's sunset used to be fixed at 8rem here. It follows the screen
       now, from --dusk-h in styles/nightfall/ground.css: at 8rem it was 128px
       of sunset and both reviewers read it as a stripe, not an evening. */

    /* Five entries in two columns leaves the fifth alone on a third row. */
    .doc-contents ol {
        grid-template-columns: minmax(0, 1fr);
    }

    .page-inner:not(.page-night) + .site-footer {
        margin-top: 3rem;
    }

    .page-inner:not(.page-night) + .site-footer::before {
        top: -3rem;
        height: 3rem;
    }

    .memory-panel-head {
        gap: 0.5rem 0.75rem;
    }

    .memory-mood {
        font-size: 0.8125rem;
    }

    .problem-grid,
    .team-grid,
    .business-grid,
    .footer-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .deck-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .slide-dots {
        order: 3;
        width: 100%;
    }
}