.blog-article-page .content > .container.article-layout--timeline {
    display: grid;
    width: min(1040px, calc(100% - 40px));
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 0 38px;
}

.article-reading-column {
    min-width: 0;
}

.article-timeline {
    align-self: stretch;
    border-right: 1px solid var(--line);
}

.article-timeline__nav {
    position: sticky;
    top: 24px;
    padding: 4px 22px 8px 0;
}

.article-timeline__title {
    margin: 0 0 18px;
    color: var(--text);
    font-size: 13px;
    font-weight: 750;
    letter-spacing: 0.08em;
}

.article-timeline__list {
    position: relative;
    margin: 0;
    padding: 0;
    list-style: none;
}

.article-timeline__list::before {
    position: absolute;
    top: 9px;
    bottom: 9px;
    left: 5px;
    width: 2px;
    border-radius: 999px;
    background: var(--line);
    content: "";
}

.article-timeline__item {
    position: relative;
    margin: 0 0 20px;
}

.article-timeline__item:last-child {
    margin-bottom: 0;
}

.article-timeline__link {
    display: flex;
    position: relative;
    gap: 11px;
    align-items: center;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 650;
    line-height: 1.35;
    text-decoration: none;
}

.article-timeline__marker {
    flex: 0 0 auto;
    width: 12px;
    height: 12px;
    border: 2px solid #aeb8c4;
    border-radius: 50%;
    background: var(--surface);
    transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.article-timeline__link:hover,
.article-timeline__link.is-active {
    color: var(--accent);
}

.article-timeline__link:hover .article-timeline__marker,
.article-timeline__link.is-active .article-timeline__marker {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
}

.article-layout--timeline [id^="day"] {
    scroll-margin-top: 28px;
}

@media screen and (max-width: 820px) {
    .blog-article-page .content > .container.article-layout--timeline {
        grid-template-columns: 1fr;
        gap: 26px;
    }

    .article-timeline {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .article-timeline__nav {
        position: static;
        padding: 0 0 26px;
    }
}