/* ==========================================================================
   Blog — the only rules that are specific to the blog surface.

   Everything shared comes from styles.css (FIELD GUIDE v3): base type and
   tokens, .prose, .table-inset, .cap, .num, .toc, .callout, .big,
   .list-rows, .faq, .pull-quote and the buttons. What is left here is the
   reading column, the page furniture around the article, and the index.
   ========================================================================== */

/* --- One column on paper ------------------------------------------------- */

.blog-page,
.post-page {
    background: var(--paper);
}

.blog-wrap,
.post-wrap {
    width: 100%;
    max-width: 68ch;
    margin: 0 auto;
    padding: 0 1rem 3.5rem;
}

@media (min-width: 640px) {
    .blog-wrap,
    .post-wrap {
        padding: 0 1.5rem 4.5rem;
    }
}

/* --- Post: breadcrumb, title, meta, photograph --------------------------- */

.post-crumbs {
    margin: 1.75rem 0 1.5rem;
    font-size: 0.8125rem;
    line-height: 1.5;
}

.post-crumbs-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.25rem 0.5rem;
    margin: 0;
    padding: 0;
}

.post-crumbs-item {
    color: var(--ink-faint);
}

.post-crumbs-item + .post-crumbs-item::before {
    content: "/";
    margin-right: 0.5rem;
    color: var(--line);
}

.post-crumbs-item a {
    color: var(--ink-faint);
    text-decoration: none;
}

.post-crumbs-item a:hover {
    color: var(--emerald);
    text-decoration: underline;
}

.post-crumbs-current {
    max-width: 32ch;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.post-title {
    margin: 0;
}

.post-figure {
    margin: 2rem 0 0;
}

.post-figure img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 16px;
}

/* The contents list is a list, not a disclosure, once there is room for it. */
@media (min-width: 700px) {
    .post-toc > .toc__list {
        display: block;
    }

    .post-toc::details-content {
        content-visibility: visible;
        block-size: auto;
    }
}

/* --- Post: the prose ----------------------------------------------------- */

.post-prose {
    margin-top: 2.25rem;
}

.post-prose > *:first-child {
    margin-top: 0;
}

.post-prose > *:last-child {
    margin-bottom: 0;
}

/* Loose markdown lists wrap each item in <p>; keep them from double-spacing. */
.post-prose li > p {
    margin: 0;
}

.post-prose li > p + p {
    margin-top: 0.5rem;
}

.post-prose hr {
    border: 0;
    border-top: 1px solid var(--line);
    margin: 2.5rem 0;
}

/* Markdown embeds carry fixed 560x315 attributes; make them fluid. */
.post-prose iframe {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border: 0;
    border-radius: 16px;
    margin: 1.75rem 0;
}

/* --- Post: quick answer --------------------------------------------------- */

.post-answer {
    margin: 1.75rem 0 0;
    padding: 1.25rem 1.5rem;
    border-left: 3px solid var(--emerald);
    background: var(--ivory);
    border-radius: 0 12px 12px 0;
}

.post-answer-eyebrow {
    margin: 0 0 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-faint);
}

.post-answer-copy {
    margin: 0;
    max-width: 62ch;
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--ink);
}

/* --- Post: sources, questions, more to read ------------------------------ */

.post-sources,
.post-faq,
.post-related {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--line);
}

.post-sources-title,
.post-faq-title,
.post-related-title {
    margin: 0;
}

.post-sources-note {
    margin: 0.75rem 0 0;
    color: var(--ink-soft);
    max-width: 62ch;
}

.post-sources-list {
    list-style: none;
    margin: 1.25rem 0 0;
    padding: 0;
    border-top: 1px solid var(--line);
}

.post-sources-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink-soft);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.post-disclaimer {
    margin: 1.25rem 0 0;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--ink-faint);
    max-width: 62ch;
}

.post-related-all {
    margin: 1.25rem 0 0;
    font-size: 0.9375rem;
}

/* --- Index, category and pagination -------------------------------------- */

.blog-title {
    margin: 2.25rem 0 0;
}

.blog-cats {
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
}

.blog-cat-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    margin: 0;
    padding: 0;
    font-size: 0.9375rem;
}

.blog-cat-item a {
    color: var(--emerald);
    text-decoration: none;
}

.blog-cat-item a:hover {
    text-decoration: underline;
    text-decoration-color: var(--gold);
    text-underline-offset: 3px;
}

.blog-cat-item--current a {
    color: var(--forest);
    font-weight: 600;
}

.blog-entries {
    margin-top: 2rem;
}

/* A row title is an h2 for the outline only; it carries no section rule. */
.blog-entries .list-rows__title::after {
    content: none;
}

.blog-empty {
    margin: 2rem 0 0;
    color: var(--ink-soft);
}

.blog-pagination {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
}

.blog-page-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    font-variant-numeric: tabular-nums;
}

.blog-page-num {
    display: inline-block;
    min-width: 2.25rem;
    padding: 0.4rem 0.5rem;
    text-align: center;
    font-size: 0.9375rem;
    line-height: 1.4;
    color: var(--ink-soft);
    text-decoration: none;
    border-radius: 999px;
}

a.blog-page-num:hover {
    color: var(--forest);
    background: var(--ivory);
}

.blog-page-num--current {
    color: var(--forest);
    font-weight: 600;
}

/* Click-to-play YouTube. No iframe loads until the reader presses play. */
.yt-facade {
    position: relative;
    aspect-ratio: 16 / 9;
    margin: 2rem 0;
    overflow: hidden;
    border-radius: 0.75rem;
    background: #000;
}

.yt-facade iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.yt-facade-btn {
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer;
}

.yt-facade-btn:focus-visible {
    outline: 3px solid var(--forest);
    outline-offset: -3px;
}

.yt-facade-thumb {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.yt-facade-play {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4.5rem;
    height: 3.25rem;
    transform: translate(-50%, -50%);
    border-radius: 0.75rem;
    background: rgba(17, 24, 39, 0.78);
}

.yt-facade-play::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-40%, -50%);
    border-style: solid;
    border-width: 0.6rem 0 0.6rem 1rem;
    border-color: transparent transparent transparent #fff;
}

.yt-facade-btn:hover .yt-facade-play,
.yt-facade-btn:focus-visible .yt-facade-play {
    background: #c00;
}