/* Shared blog presentation for the public site and the admin preview. */

/* ---- list ---- */
.blog-filter { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.blog-chip { display: inline-flex; align-items: center; gap: .45rem; padding: .4rem .9rem; border: 1px solid var(--bs-border-color); border-radius: 999px; background: #fff; color: var(--bs-emphasis-color); font-weight: 600; font-size: .9rem; text-decoration: none; }
.blog-chip span { font-size: .75rem; font-weight: 700; color: var(--bs-secondary-color); }
.blog-chip:hover { background: var(--bs-tertiary-bg); }
.blog-chip.active { background: var(--bs-emphasis-color); border-color: var(--bs-emphasis-color); color: #fff; }
.blog-chip.active span { color: #c9d6e6; }

.blog-card { position: relative; display: flex; flex-direction: column; height: 100%; background: #fff; border: 1px solid var(--bs-border-color); border-radius: 1rem; overflow: hidden; transition: transform .15s ease, box-shadow .15s ease; }
.blog-card:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(15,39,71,.1); }
.blog-card:focus-within { outline: 2px solid var(--bs-primary); outline-offset: 2px; }
.blog-card-media { aspect-ratio: 16 / 9; background: var(--bs-tertiary-bg); overflow: hidden; }
.blog-card-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.blog-card-media.is-empty { display: grid; place-items: center; background: linear-gradient(135deg, var(--bs-primary), var(--bs-emphasis-color)); }
.blog-card-media.is-empty img { width: 56px; height: 56px; object-fit: contain; opacity: .9; }
.blog-card-body { display: flex; flex-direction: column; flex: 1; padding: 1.25rem 1.4rem 1.4rem; }
.blog-category { position: relative; z-index: 2; align-self: flex-start; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bs-primary); text-decoration: none; }
.blog-category:hover { text-decoration: underline; }
.blog-card-title { font-size: 1.2rem; line-height: 1.3; margin: .45rem 0 .6rem; }
.blog-card-title a { color: var(--bs-emphasis-color); text-decoration: none; }
.blog-card-excerpt { color: var(--bs-secondary-color); margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 3; line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.blog-meta { margin: auto 0 0; font-size: .85rem; color: var(--bs-secondary-color); }
.blog-card.is-wide .blog-card-title { font-size: 1.55rem; }
@media (min-width: 768px) {
  .blog-card.is-wide { flex-direction: row; }
  .blog-card.is-wide .blog-card-media { flex: 0 0 48%; aspect-ratio: auto; min-height: 100%; }
  .blog-card.is-wide .blog-card-body { padding: 1.75rem; justify-content: center; }
  .blog-card.is-wide .blog-meta { margin-top: 1rem; }
}
@media (min-width: 768px) and (max-width: 991.98px) { .blog-card.is-wide { flex-direction: column; } .blog-card.is-wide .blog-card-media { aspect-ratio: 16 / 9; min-height: 0; } }

.blog-pager { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 2.5rem; }
.blog-empty { max-width: 640px; margin: 1rem auto; padding: 3rem 2rem; }
.blog-empty > i { font-size: 2.5rem; color: var(--bs-primary); }

/* ---- article page ---- */
/* The top is kept short on purpose: the cover should start high enough that most of it shows without scrolling (owner, 2026-10-29). */
.blog-header { background: var(--bs-tertiary-bg); border-bottom: 1px solid var(--bs-border-color); padding: 1.5rem 0 1.25rem; }
.blog-header .breadcrumb { --bs-breadcrumb-divider-color: var(--bs-secondary-color); margin-bottom: .5rem; }
.blog-header-text { max-width: 920px; }
.blog-header h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); line-height: 1.15; font-weight: 800; margin: .35rem 0 .75rem; }
.blog-lead { max-width: 760px; font-size: 1.125rem; line-height: 1.55; color: var(--bs-body-color); margin-bottom: 1rem; }
.blog-byline { display: flex; align-items: center; gap: .75rem; }
.blog-author-name { font-weight: 600; color: var(--bs-emphasis-color); }
.blog-avatar { flex: 0 0 auto; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--bs-emphasis-color); color: #fff; font-weight: 700; font-size: .9rem; letter-spacing: .02em; }
.blog-avatar-lg { width: 56px; height: 56px; font-size: 1.1rem; }
.blog-header + .section { padding-top: 1.25rem; }
.blog-cover { margin: 0 0 2rem; }
.blog-cover img { width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: cover; border-radius: 1rem; border: 1px solid var(--bs-border-color); display: block; }

.blog-aside { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 1.25rem; }
.blog-toc { background: #fff; border: 1px solid var(--bs-border-color); border-radius: 1rem; padding: 1.1rem 1.25rem; }
.blog-toc-title, .blog-toc > summary { font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bs-secondary-color); margin-bottom: .6rem; }
.blog-toc > summary { cursor: pointer; margin-bottom: 0; }
.blog-toc[open] > summary { margin-bottom: .6rem; }
.blog-toc-mobile { margin-bottom: 1.5rem; }
.blog-toc-list { list-style: none; margin: 0; padding: 0; max-height: 60vh; overflow-y: auto; }
.blog-toc-list li { margin: 0; }
.blog-toc-list a { display: block; padding: .3rem 0 .3rem .75rem; border-left: 2px solid var(--bs-border-color); color: var(--bs-body-color); font-size: .9rem; line-height: 1.35; text-decoration: none; }
.blog-toc-list a:hover { color: var(--bs-primary); border-left-color: var(--bs-primary); }
.blog-toc-list a.is-current { color: var(--bs-emphasis-color); font-weight: 600; border-left-color: var(--bs-primary); }
.blog-toc-list .is-sub a { padding-left: 1.5rem; font-size: .85rem; }
/* The one call to action in the side column: a quiet card with a text link, not a button (it sits under the contents and must not pull the eye from the article). */
.blog-demo { background: var(--bs-tertiary-bg); border: 1px solid var(--bs-border-color); border-radius: 1rem; padding: 1.1rem 1.25rem; }
.blog-demo h2 { font-size: 1rem; font-weight: 700; color: var(--bs-emphasis-color); margin: 0 0 .4rem; }
.blog-demo p { font-size: .9rem; line-height: 1.5; color: var(--bs-body-color); margin: 0 0 .75rem; }
.blog-demo a { font-size: .9rem; font-weight: 600; color: var(--bs-emphasis-color); text-decoration: underline; text-underline-offset: .2em; }
.blog-demo a:hover { color: var(--bs-primary); }
.blog-demo a i { font-size: .8em; margin-left: .15rem; }

.blog-tags { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; margin: 2rem 0 0; }
.blog-tags-label { font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bs-secondary-color); margin-right: .25rem; }
.blog-tag { display: inline-block; padding: .25rem .7rem; border: 1px solid var(--bs-border-color); border-radius: 999px; background: #fff; color: var(--bs-emphasis-color); font-size: .85rem; font-weight: 500; text-decoration: none; }
.blog-tag:hover, .blog-tag:focus-visible { background: var(--bs-tertiary-bg); border-color: var(--bs-primary); }
.blog-tags + .blog-share { margin-top: 1.5rem; }
.blog-share { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; margin: 2.5rem 0 0; padding-top: 1.5rem; border-top: 1px solid var(--bs-border-color); }
.blog-share-label { font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bs-secondary-color); margin-right: .25rem; }
.blog-share-link { min-height: 40px; display: inline-grid; place-items: center; border: 1px solid var(--bs-border-color); border-radius: .5rem; background: #fff; color: var(--bs-emphasis-color); font-size: .875rem; text-decoration: none; cursor: pointer; padding: .4rem .75rem; }
.blog-share-link:hover { background: var(--bs-tertiary-bg); color: var(--bs-primary); border-color: var(--bs-primary); }
.blog-author { display: flex; gap: 1rem; align-items: flex-start; margin-top: 1.75rem; padding: 1.25rem 1.4rem; background: var(--bs-tertiary-bg); border: 1px solid var(--bs-border-color); border-radius: 1rem; }

.reading-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 1100; pointer-events: none; }
.reading-progress span { display: block; height: 100%; width: 0; background: var(--bs-primary); }

/* ---- the article text (also the editor's preview) ---- */
.blog-prose { font-size: 1.1rem; line-height: 1.75; color: var(--bs-body-color); overflow-wrap: break-word; }
.blog-prose > :first-child { margin-top: 0; }
.blog-prose p, .blog-prose ul, .blog-prose ol, .blog-prose blockquote, .blog-prose pre, .blog-prose .table-responsive, .blog-prose figure { margin: 0 0 1.35rem; }
.blog-prose h2, .blog-prose h3, .blog-prose h4 { scroll-margin-top: 96px; line-height: 1.25; }
.blog-prose h2 { font-size: 1.7rem; margin: 2.75rem 0 1rem; }
.blog-prose h3 { font-size: 1.35rem; margin: 2.1rem 0 .75rem; }
.blog-prose h4 { font-size: 1.1rem; margin: 1.75rem 0 .6rem; }
.blog-prose a { color: var(--bs-primary); text-decoration: underline; text-underline-offset: 2px; }
.blog-prose a:hover { color: var(--bs-emphasis-color); }
.blog-prose ul, .blog-prose ol { padding-left: 1.5rem; }
.blog-prose li { margin-bottom: .45rem; }
.blog-prose li > ul, .blog-prose li > ol { margin: .45rem 0 0; }
.blog-prose img { max-width: 100%; height: auto; border-radius: .75rem; border: 1px solid var(--bs-border-color); display: block; margin: 1.75rem auto; }
.blog-prose blockquote { padding: .25rem 0 .25rem 1.25rem; border-left: 4px solid var(--bs-primary); color: var(--bs-secondary-color); font-size: 1.15rem; }
.blog-prose blockquote > :last-child { margin-bottom: 0; }
.blog-prose hr { margin: 2.5rem 0; border-color: var(--bs-border-color); opacity: 1; }
.blog-prose code { font-size: .88em; padding: .15em .4em; background: var(--bs-tertiary-bg); border: 1px solid var(--bs-border-color); border-radius: .35rem; color: var(--bs-emphasis-color); }
.blog-prose pre { padding: 1rem 1.25rem; background: #0f1b33; color: #e6edf7; border-radius: .75rem; overflow-x: auto; line-height: 1.55; }
.blog-prose pre code { padding: 0; background: none; border: 0; color: inherit; font-size: .88rem; }
.blog-prose .table-responsive { border: 1px solid var(--bs-border-color); border-radius: .75rem; }
.blog-prose .blog-table { margin: 0; font-size: .95rem; }
.blog-prose .blog-table th { background: var(--bs-tertiary-bg); color: var(--bs-emphasis-color); white-space: nowrap; }
.blog-prose .blog-table tr:last-child td { border-bottom: 0; }
.blog-prose .footnotes { font-size: .9rem; color: var(--bs-secondary-color); }
.blog-prose .task-list-item { list-style: none; margin-left: -1.5rem; }

/* Callouts: > [!NOTE] / [!TIP] / [!IMPORTANT] / [!WARNING] / [!CAUTION] */
.blog-prose .markdown-alert { margin: 0 0 1.35rem; padding: .9rem 1.2rem; border-left: 4px solid var(--bs-primary); border-radius: 0 .75rem .75rem 0; background: rgba(15,168,161,.08); }
.blog-prose .markdown-alert > :last-child { margin-bottom: 0; }
.blog-prose .markdown-alert-title { display: flex; align-items: center; gap: .5rem; font-weight: 700; color: var(--bs-primary); margin-bottom: .4rem !important; }
.blog-prose .markdown-alert-title svg { fill: currentColor; }
.blog-prose .markdown-alert-tip { border-color: #15803d; background: rgba(21,128,61,.08); }
.blog-prose .markdown-alert-tip .markdown-alert-title { color: #15803d; }
.blog-prose .markdown-alert-important { border-color: #6d28d9; background: rgba(109,40,217,.07); }
.blog-prose .markdown-alert-important .markdown-alert-title { color: #6d28d9; }
.blog-prose .markdown-alert-warning { border-color: var(--bs-warning); background: rgba(245,158,11,.1); }
.blog-prose .markdown-alert-warning .markdown-alert-title { color: #b45309; }
.blog-prose .markdown-alert-caution { border-color: #b91c1c; background: rgba(185,28,28,.07); }
.blog-prose .markdown-alert-caution .markdown-alert-title { color: #b91c1c; }

@media (max-width: 575.98px) {
  .blog-header { padding: 1.25rem 0 1.25rem; }
  .blog-lead { font-size: 1.1rem; }
  .blog-prose { font-size: 1.05rem; }
  .blog-prose h2 { font-size: 1.45rem; margin-top: 2.25rem; }
  .blog-prose h3 { font-size: 1.2rem; }
  .blog-author { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { .blog-card { transition: none; } .blog-card:hover { transform: none; } }
@media print { .reading-progress, .blog-aside, .blog-share, .cta-band, .site-header, .site-footer { display: none !important; } }