:root {
    --story-width: 800px;
}

* {
    box-sizing: border-box;
}

.page-layout {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    grid-template-areas:
    "left-rail main-content right-rail";
    margin: auto;
    max-width: 100%;
    gap: 4rem;
}

.left-rail {
    grid-area: left-rail;
}

.main-content {
    grid-area: main-content;
}

.right-rail {
    grid-area: right-rail;
}

article {
    margin-block: 3rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

h2 {
    font-size: 1.8rem;
}

.contents-table, .meta-info {
    max-width: 90vw;
}

.mobile-toc {
    display: none;
}

.contents-table-header {
    font-size: 1.2rem;
}

.contents-table {
    width: 100%;
    padding-top: 2rem;
    position: sticky;
    top: var(--nav-height);
    padding-inline-start: 2rem;
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
}

.contents-table ol {
    border-inline-start: 2px solid #a3a3a3;
    padding-inline-start: 2rem;
}

.contents-table ol li {
    margin-block: 1rem;
    padding-inline-start: 0.5rem;
}

.meta-info {
    text-align: left;
    width: min(var(--story-width), 100%);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    flex-direction: row;
}

.meta-info p {
    margin-left: 0.3rem;
    font-style: italic;
    flex-grow: 2;
}

.categories {
    display: flex;
    flex-direction: row;
    justify-content: end;
    gap: 1rem;
    flex-wrap: wrap;
}

.story-page-header {
    font-size: 2.5rem;
    text-align: center;
    margin: auto;
    max-width: 1000px;
    margin-block: 3rem;
}

.story-section {
    width: fit-content;
    max-width: var(--story-width);
}

.story-section * {
    margin-block-start: 2rem;
    max-width: 90vw;
    margin-inline: auto;
}

.story-section p a {
    word-wrap: break-word;
}

.story-section p {
    text-align: justify;
    font-size: 1.1rem;
}

.story-section img {
    display: block;
    margin: auto;
    height: auto;
    max-width: 100%;
}

.story-section ul,
.story-section ol {
    max-width: clamp(15rem, 35rem, 80vw)
}

.story-section li {
    margin-block-start: 0.8em;
}

.right {
    float: right;
}

.left {
    float: left;
}

figcaption {
    text-align: center;
    font-style: italic;
    font-size: 1rem;
}

.related-articles {
    display: flex;
    flex-direction: column;
    align-items: start;
    gap: 2rem;
    margin-block: 2rem;
    max-width: 90vw;
    margin-inline: auto;
}

.related-articles .story-card {
    flex-wrap: nowrap;
}

@media (max-width: 1200px) {
    .related-articles .story-card {
        flex-wrap: wrap;
        justify-content: start;
    }

    .story-card .story-text {
        margin-inline: 0px;
    }
}


/* Mobile: collapse to a single column. The left rail (TOC) appears above the
   article thanks to the natural DOM order. The right rail is hidden entirely
   because it carries no content and would waste vertical space. */
@media (max-width: 1100px) {
    .page-layout {
        grid-template-columns: 1fr;
        grid-template-areas:
            "main-content";
    }

    .left-rail {
        display: none;
    }

    .right-rail {
        display: none;
    }

    .mobile-toc {
        display: block;
        max-width: 90vw;
        max-height: fit-content;
    }

    .contents-table {
        position: static;
        padding-top: 1.5rem;
        padding-inline-start: 0.5rem;
    }

    .meta-info {
        width: 100%;
    }

    .story-section {
        width: 100%;
        max-width: 100%;
    }

    .story-page-header {
        font-size: 1.8rem;
        margin-block: 1.5rem;
    }
}