/* =============================================
   Blog — index, article and prose styles
   Scoped to the blog- prefix. Tokens come from css/style.css :root.
   Mobile first; layers at 768 px and 1280 px.
   ============================================= */

.blog-main {
    padding: calc(var(--header-h) + 40px) 0 80px;
}

.blog-container {
    max-width: var(--max-width);
}

/* --- Meta line, tags, badges (shared by index and article) --- */

.blog-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.blog-draft-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 0 8px;
    border: 1px solid var(--accent-2);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-2);
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.blog-tags a {
    display: inline-block;
    padding: 2px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition), border-color var(--transition);
}

.blog-tags a:hover,
.blog-tags a.active {
    color: var(--text);
    border-color: var(--accent);
}

.blog-tags a:focus-visible,
.blog-card-title a:focus-visible,
.blog-prose a:focus-visible,
.blog-toc a:focus-visible,
.blog-back a:focus-visible,
.blog-filter-status a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* --- Index --- */

.blog-index-head {
    margin-bottom: 32px;
}

.blog-index-title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 12px;
}

.blog-index-lede {
    max-width: 60ch;
    color: var(--text-muted);
}

.blog-filter {
    margin-bottom: 32px;
}

.blog-filter-status {
    margin: -12px 0 24px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.blog-empty {
    padding: 48px 0;
    color: var(--text-muted);
}

.blog-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    list-style: none;
}

.blog-card {
    display: flex;
}

.blog-card article {
    display: flex;
    flex-direction: column;
    width: 100%;
    overflow: hidden;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

.blog-card article:hover,
.blog-card article:focus-within {
    border-color: rgb(88 166 255 / 0.6);
    box-shadow: 0 0 0 1px rgb(88 166 255 / 0.3), 0 12px 32px -12px rgb(88 166 255 / 0.35);
}

.blog-card-cover img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.blog-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 24px;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
}

.blog-card-title a {
    color: var(--text);
}

.blog-card-title a:hover {
    color: var(--accent-hover);
}

.blog-card-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Article --- */

.blog-article,
.blog-cta,
.blog-notfound {
    max-width: 72ch;
    margin-left: auto;
    margin-right: auto;
}

.blog-back {
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.blog-article-title {
    font-size: 1.85rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 14px;
    overflow-wrap: anywhere;
}

.blog-article-head .blog-tags {
    margin-top: 16px;
}

.blog-lang-note {
    margin-top: 20px;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.blog-toc {
    margin-top: 28px;
    padding: 18px 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}

.blog-toc-title {
    margin-bottom: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.blog-toc ol {
    padding-left: 1.25em;
    font-size: 0.95rem;
}

.blog-toc li {
    margin: 4px 0;
}

/* --- Prose (compiled article body) --- */

.blog-prose {
    margin-top: 32px;
    font-size: 1.0625rem;
    line-height: 1.75;
    overflow-wrap: break-word;
}

.blog-prose > * + * {
    margin-top: 1.1em;
}

.blog-prose h2,
.blog-prose h3,
.blog-prose h4 {
    line-height: 1.3;
    scroll-margin-top: calc(var(--header-h) + 16px);
}

.blog-prose h2 {
    margin-top: 2.2em;
    font-size: 1.5rem;
    font-weight: 700;
}

.blog-prose h3 {
    margin-top: 1.8em;
    font-size: 1.2rem;
    font-weight: 600;
}

.blog-prose h4 {
    margin-top: 1.6em;
    font-size: 1.05rem;
    font-weight: 600;
}

.blog-prose h2 + *,
.blog-prose h3 + *,
.blog-prose h4 + * {
    margin-top: 0.7em;
}

.blog-prose a {
    text-decoration: underline;
    text-decoration-color: rgb(88 166 255 / 0.5);
    text-underline-offset: 3px;
}

.blog-prose a:hover {
    text-decoration-color: currentColor;
}

.blog-prose ul,
.blog-prose ol {
    padding-left: 1.5em;
}

.blog-prose li + li {
    margin-top: 0.4em;
}

.blog-prose strong {
    font-weight: 600;
}

.blog-prose blockquote {
    padding: 4px 0 4px 20px;
    border-left: 3px solid var(--accent);
    color: var(--text-muted);
}

.blog-prose blockquote > * + * {
    margin-top: 0.8em;
}

.blog-prose hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 2em 0;
}

/* Inline code and code panels (no syntax highlighting in the MVP) */

.blog-prose code {
    padding: 0.1em 0.4em;
    border-radius: 4px;
    background: var(--bg-card);
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.blog-prose pre {
    padding: 16px 20px;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    font-size: 0.875rem;
    line-height: 1.6;
    tab-size: 4;
}

.blog-prose pre code {
    padding: 0;
    background: none;
    font-size: inherit;
}

.blog-prose pre:focus-visible,
.blog-table-wrap:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Figures */

.blog-figure {
    margin-left: 0;
    margin-right: 0;
}

.blog-figure img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.blog-figure figcaption {
    margin-top: 8px;
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-muted);
}

/* Tables scroll sideways inside their wrapper on narrow screens */

.blog-table-wrap {
    overflow-x: auto;
}

.blog-prose table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    line-height: 1.5;
}

.blog-prose th,
.blog-prose td {
    padding: 10px 14px;
    border: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.blog-prose th {
    background: var(--bg-card);
    font-weight: 600;
    white-space: nowrap;
}

/* --- Call to action and 404 --- */

.blog-cta {
    margin-top: 64px;
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}

.blog-cta p + p {
    margin-top: 8px;
    color: var(--text-muted);
}

.blog-cta p:last-child {
    margin-top: 16px;
}

.blog-cta-title {
    font-size: 1.15rem;
    font-weight: 600;
}

.blog-notfound p {
    margin-top: 12px;
    color: var(--text-muted);
}

.blog-notfound p:last-child {
    margin-top: 24px;
}

/* --- Tablet and up --- */

@media (min-width: 768px) {
    .blog-main {
        padding-top: calc(var(--header-h) + 64px);
    }

    .blog-index-title {
        font-size: 2.5rem;
    }

    .blog-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }

    .blog-article-title {
        font-size: 2.4rem;
    }

    .blog-prose h2 {
        font-size: 1.75rem;
    }
}

/* --- Desktop --- */

@media (min-width: 1280px) {
    .blog-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (prefers-reduced-motion: reduce) {
    .blog-card article,
    .blog-tags a {
        transition: none;
    }
}