/* ============================================================
   TargetLog — Blog system (shared)
   Native extension of the target-log.net redesign.
   Deep-navy tactical instrument panel · scarce gold ·
   Space Grotesk + Inter + JetBrains Mono.
   Renders fully without JS (native <details> FAQ, CSS-only states).
   ============================================================ */

:root {
  /* color */
  --bg: #0F1923;
  --bg-2: #0B121A;
  --surface: #16222F;
  --surface-2: #1B2838;
  --card: #1E3044;
  --border: #2A3F56;
  --border-soft: rgba(170, 200, 228, 0.10);
  --border-soft-2: rgba(170, 200, 228, 0.16);
  --fg: #EAF1F7;
  --fg-strong: #FFFFFF;
  --muted: #8B9DB5;
  --muted-2: #8196B2;            /* AA-corrected tertiary text */
  --accent: #E8A838;             /* gold — fills only (CTA) */
  --accent-2: #F0C060;           /* gold-light — small gold TEXT (passes AA) */
  --accent-glow: rgba(232, 168, 56, 0.25);
  --danger: #E53935;

  /* type */
  --font-display: 'Space Grotesk', 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  /* shape */
  --radius: 12px;
  --radius-lg: 20px;
  --nav-h: 68px;
  --container: 1180px;
  --prose: 700px;
}

/* ---------- reset / base ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; }
ul, ol { padding-left: 1.25rem; }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 300; transform: translateY(-160%); transition: transform .15s ease; background: var(--fg-strong); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-weight: 600; font-size: .9rem; }
.skip-link:focus { transform: translateY(0); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { text-wrap: balance; }
section[id], main[id] { scroll-margin-top: 88px; }

/* mono helpers */
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.tnum { font-variant-numeric: tabular-nums; }

/* shared motif: mono eyebrow / category tag */
.kicker { font-family: var(--font-mono); font-size: .72rem; font-weight: 500; text-transform: uppercase; letter-spacing: .18em; color: var(--muted); display: inline-flex; align-items: center; gap: 9px; }
.kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: transparent; border: 1px solid var(--muted-2); }
.tag { display: inline-flex; align-items: center; font-family: var(--font-mono); font-size: .66rem; font-weight: 500; text-transform: uppercase; letter-spacing: .12em; color: var(--accent-2); border: 1px solid var(--border-soft-2); border-radius: 999px; padding: 4px 10px; background: rgba(232,168,56,0.06); white-space: nowrap; }
.tag.muted { color: var(--muted); border-color: var(--border-soft); background: transparent; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-weight: 600; font-size: .95rem; letter-spacing: .01em; padding: 14px 22px; border-radius: var(--radius); border: 1px solid transparent; transition: transform .15s ease, background .2s ease, border-color .2s ease; white-space: nowrap; }
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { transform: translateY(-2px); background: var(--accent-2); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--border-soft-2); background: var(--surface); transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

/* ---------- nav (matches marketing site) ---------- */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--nav-h); background: rgba(15,25,35,0.72); backdrop-filter: blur(18px) saturate(160%); -webkit-backdrop-filter: blur(18px) saturate(160%); border-bottom: 1px solid transparent; transition: border-color .25s ease, background .25s ease; }
.nav.scrolled { border-bottom-color: var(--border-soft); background: rgba(11,18,26,0.9); }
.nav-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand img { width: 38px; height: 38px; border-radius: 9px; }
.brand b { font-family: var(--font-display); font-weight: 600; font-size: 1.16rem; letter-spacing: -0.01em; color: var(--fg-strong); }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: .9rem; color: var(--muted); transition: color .2s; font-weight: 500; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--fg); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 10px; background: transparent; color: var(--fg); align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content: ""; display: block; width: 18px; height: 2px; background: currentColor; border-radius: 2px; position: relative; transition: transform .25s, opacity .2s; }
.nav-toggle span::before { position: absolute; top: -6px; left: 0; }
.nav-toggle span::after { position: absolute; top: 6px; left: 0; }
.nav.open .nav-toggle span { background: transparent; }
.nav.open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- footer (matches marketing site) ---------- */
footer.site { border-top: 1px solid var(--border-soft); background: var(--bg-2); padding: 56px 0 36px; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.foot-brand p { color: var(--muted); font-size: .9rem; max-width: 34ch; margin-top: 14px; }
.foot-col h4 { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 14px; }
.foot-col a { display: block; color: var(--muted); font-size: .92rem; padding: 5px 0; transition: color .2s; }
.foot-col a:hover { color: var(--fg); }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border-soft); }
.foot-bottom small { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .06em; color: var(--muted-2); }

/* ---------- grid backdrop motif ---------- */
.grid-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: .45;
  background-image: linear-gradient(var(--border-soft) 1px, transparent 1px), linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(620px 520px at 50% 0%, #000 25%, transparent 72%);
  mask-image: radial-gradient(620px 520px at 50% 0%, #000 25%, transparent 72%); }
.grid-bg.left { -webkit-mask-image: radial-gradient(560px 520px at 20% 10%, #000 25%, transparent 72%); mask-image: radial-gradient(560px 520px at 20% 10%, #000 25%, transparent 72%); }

/* corner brackets */
.brk { position: absolute; width: 16px; height: 16px; border: 2px solid var(--accent-2); z-index: 2; opacity: .8; }
.brk.tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; border-top-left-radius: 6px; }
.brk.tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; border-top-right-radius: 6px; }
.brk.bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; border-bottom-left-radius: 6px; }
.brk.br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; border-bottom-right-radius: 6px; }

/* ============================================================
   BLOG INDEX
   ============================================================ */
.blog-hero { position: relative; padding: calc(var(--nav-h) + 64px) 0 40px; overflow: hidden; }
.blog-hero .inner { position: relative; z-index: 2; max-width: 720px; }
.blog-hero h1 { font-family: var(--font-display); font-weight: 600; font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.06; letter-spacing: -0.03em; color: var(--fg-strong); margin: 18px 0 14px; }
.blog-hero p { color: var(--muted); font-size: 1.08rem; max-width: 56ch; }

.section { padding: 56px 0; position: relative; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
.section-head h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.4rem, 2.6vw, 1.8rem); letter-spacing: -0.02em; color: var(--fg-strong); }
.section-head .more { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); }
.section-head .more:hover { color: var(--fg-strong); }

/* featured post */
.featured { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; border: 1px solid var(--border-soft); border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); }
.featured .cover-wrap { position: relative; min-height: 280px; }
.featured .body { padding: 32px 34px; display: flex; flex-direction: column; gap: 14px; }
.featured .body h3 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.4rem, 2.4vw, 1.9rem); line-height: 1.12; letter-spacing: -0.02em; color: var(--fg-strong); }
.featured .body p { color: var(--muted); }
.byline { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-family: var(--font-mono); font-size: .72rem; letter-spacing: .04em; color: var(--muted-2); }
.byline .sep { opacity: .5; }
.monogram { width: 26px; height: 26px; border-radius: 7px; background: linear-gradient(150deg, var(--card), var(--surface-2)); border: 1px solid var(--border-soft-2); display: grid; place-items: center; font-family: var(--font-mono); font-weight: 500; font-size: .62rem; color: var(--accent-2); flex: none; }

/* post grid + card */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post-card { display: flex; flex-direction: column; border: 1px solid var(--border-soft); border-radius: var(--radius); overflow: hidden; background: var(--surface); transition: transform .18s ease, border-color .2s ease, box-shadow .2s ease; }
.post-card:hover { transform: translateY(-4px); border-color: var(--border-soft-2); box-shadow: 0 0 0 1px var(--accent-glow), 0 18px 40px rgba(0,0,0,0.4); }
.post-card .cover-wrap { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.post-card .cover-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.post-card:hover .cover-wrap img { transform: scale(1.04); }
.post-card .body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.post-card h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.12rem; line-height: 1.25; letter-spacing: -0.01em; color: var(--fg-strong); }
.post-card p { color: var(--muted); font-size: .92rem; line-height: 1.55; }
.post-card .meta { margin-top: auto; display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .06em; color: var(--muted-2); }
.post-card .meta .sep { opacity: .5; }

/* default cover (no image) — reticle motif */
.cover.default { width: 100%; height: 100%; background:
   radial-gradient(circle at 50% 50%, rgba(232,168,56,0.10), transparent 38%),
   radial-gradient(circle at 50% 50%, transparent 30%, rgba(170,200,228,0.06) 31%, transparent 33%),
   radial-gradient(circle at 50% 50%, transparent 42%, rgba(170,200,228,0.05) 43%, transparent 45%),
   linear-gradient(180deg, var(--surface-2), var(--bg-2));
  position: relative; display: grid; place-items: center; overflow: hidden; }
.cover.default::before, .cover.default::after { content: ""; position: absolute; background: rgba(170,200,228,0.10); }
.cover.default::before { width: 100%; height: 1px; top: 50%; }
.cover.default::after { width: 1px; height: 100%; left: 50%; }
.cover.default .cv-dot { position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent-glow); }
.cover.default .cv-label { position: relative; z-index: 2; font-family: var(--font-mono); font-size: .64rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); }

/* pagination */
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 48px; flex-wrap: wrap; }
.pagination a, .pagination span { min-width: 40px; height: 40px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border-soft); border-radius: 9px; font-family: var(--font-mono); font-size: .82rem; color: var(--muted); transition: color .2s, border-color .2s, background .2s; }
.pagination a:hover { color: var(--fg); border-color: var(--border-soft-2); background: var(--surface); }
.pagination .current { background: var(--accent); color: var(--bg); border-color: transparent; font-weight: 600; }
.pagination .gap { border: 0; color: var(--muted-2); }

/* CTA strip */
.cta-strip { border: 1px solid var(--border-soft); border-radius: var(--radius-lg); background: radial-gradient(700px 320px at 50% 0%, rgba(232,168,56,0.10), transparent 60%), var(--surface); padding: clamp(32px, 5vw, 56px); text-align: center; }
.cta-strip h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -0.02em; color: var(--fg-strong); margin-bottom: 10px; }
.cta-strip p { color: var(--muted); margin-bottom: 22px; }

/* ============================================================
   BLOG ARTICLE (reusable template)
   ============================================================ */
.breadcrumbs { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em; color: var(--muted-2); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--fg-strong); }
.breadcrumbs .sep { opacity: .5; }
.breadcrumbs [aria-current="page"] { color: var(--muted); }

/* article header */
.article-head { padding: calc(var(--nav-h) + 48px) 0 28px; position: relative; overflow: hidden; }
.article-head .inner { position: relative; z-index: 2; max-width: var(--prose); margin: 0 auto; }
.article-head h1 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.9rem, 4.6vw, 2.9rem); line-height: 1.08; letter-spacing: -0.03em; color: var(--fg-strong); margin: 16px 0 14px; }
.article-head .dek { font-size: 1.1rem; color: var(--muted); max-width: 60ch; }
.byline-row { display: flex; align-items: center; gap: 12px; margin-top: 22px; flex-wrap: wrap; font-family: var(--font-mono); font-size: .74rem; letter-spacing: .04em; color: var(--muted-2); }
.byline-row .monogram { width: 32px; height: 32px; font-size: .66rem; border-radius: 8px; }
.byline-row .sep { opacity: .5; }
.byline-row b { color: var(--fg); font-weight: 500; }

/* cover frame */
.cover-frame { max-width: 920px; margin: 8px auto 0; position: relative; border: 1px solid var(--border-soft-2); border-radius: var(--radius-lg); overflow: hidden; }
.cover-frame > * { aspect-ratio: 16 / 9; }
.cover-frame img { width: 100%; height: 100%; object-fit: cover; }
.cover-caption { max-width: 920px; margin: 10px auto 0; font-family: var(--font-mono); font-size: .7rem; letter-spacing: .04em; color: var(--muted-2); }

/* article body layout with sticky TOC */
.article-wrap { max-width: 1180px; margin: 0 auto; padding: 40px 24px 16px; display: grid; grid-template-columns: 100%; gap: 0; }
.article-body { width: 100%; max-width: var(--prose); margin: 0 auto; }

/* TOC rail */
.toc { display: none; }
.toc h2 { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 14px; }
.toc ul { list-style: none; padding: 0; border-left: 1px solid var(--border-soft); }
.toc li { margin: 0; }
.toc a { display: block; padding: 8px 0 8px 16px; margin-left: -1px; border-left: 2px solid transparent; font-size: .84rem; color: var(--muted); transition: color .2s, border-color .2s; line-height: 1.35; }
.toc a:hover { color: var(--fg); }
.toc a.active { color: var(--accent-2); border-left-color: var(--accent); }

/* TL;DR / key takeaways callout */
.tldr { background: var(--surface); border: 1px solid var(--border-soft); border-left: 3px solid var(--accent); border-radius: var(--radius); padding: 22px 24px; margin: 32px 0 40px; }
.tldr .tldr-label { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--accent-2); margin-bottom: 10px; }
.tldr .tldr-label .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent-glow); }
.tldr > p { color: var(--fg); }
.tldr ul { margin: 12px 0 0; padding-left: 1.1rem; }
.tldr li { color: var(--muted); margin: 5px 0; }
.tldr li::marker { color: var(--accent-2); }

/* ---------- prose vocabulary ---------- */
.prose { font-size: 1.06rem; color: var(--fg); }
.prose > * + * { margin-top: 1.25em; }
.prose h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.35rem, 2.4vw, 1.7rem); line-height: 1.2; letter-spacing: -0.02em; color: var(--fg-strong); margin-top: 2.2em; scroll-margin-top: 96px; }
.prose h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.18rem; letter-spacing: -0.01em; color: var(--fg-strong); margin-top: 1.8em; }
.prose p { color: var(--fg); }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin: 6px 0; color: var(--fg); }
.prose li::marker { color: var(--accent-2); }
.prose a { color: var(--accent-2); text-decoration: underline; text-decoration-color: rgba(240,192,96,0.45); text-underline-offset: 3px; transition: text-decoration-color .2s, color .2s; }
.prose a:hover { color: var(--fg-strong); text-decoration-color: var(--accent-2); }
.prose strong { color: var(--fg-strong); font-weight: 600; }
.prose blockquote { border-left: 3px solid var(--accent); background: var(--surface); padding: 16px 22px; border-radius: 0 var(--radius) var(--radius) 0; color: var(--fg); font-style: italic; }
.prose blockquote cite { display: block; margin-top: 8px; font-style: normal; font-family: var(--font-mono); font-size: .78rem; color: var(--muted-2); }
/* tables */
.prose .table-wrap { overflow-x: auto; border: 1px solid var(--border-soft); border-radius: var(--radius); }
.prose table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.prose thead th { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-2); text-align: left; padding: 13px 16px; background: var(--surface-2); border-bottom: 1px solid var(--border); }
.prose tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border-soft); color: var(--fg); }
.prose tbody tr:nth-child(even) td { background: rgba(22,34,47,0.5); }
.prose tbody tr:last-child td { border-bottom: 0; }
.prose td.num, .prose th.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }
/* inline code + code blocks */
.prose code { font-family: var(--font-mono); font-size: .88em; background: var(--bg-2); border: 1px solid var(--border-soft); border-radius: 5px; padding: 2px 6px; color: var(--accent-2); }
.prose pre { background: var(--bg-2); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 18px 20px; overflow-x: auto; line-height: 1.6; }
.prose pre code { background: none; border: 0; padding: 0; color: var(--fg); font-size: .86rem; }
/* images with caption */
.prose figure { margin: 1.6em 0; }
.prose figure img { border: 1px solid var(--border-soft); border-radius: var(--radius); }
.prose figcaption { margin-top: 8px; font-family: var(--font-mono); font-size: .74rem; color: var(--muted-2); }
.prose hr { border: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--border-soft-2) 20%, rgba(232,168,56,0.35) 50%, var(--border-soft-2) 80%, transparent); margin: 2.4em 0; }

/* FAQ (native <details>, no JS) */
.faq { max-width: var(--prose); margin: 56px auto 0; }
.faq-head { font-family: var(--font-display); font-weight: 600; font-size: 1.5rem; letter-spacing: -0.02em; color: var(--fg-strong); margin-bottom: 18px; }
.faq details { border: 1px solid var(--border-soft); border-radius: var(--radius); background: var(--surface); margin-bottom: 10px; overflow: hidden; }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; cursor: pointer; list-style: none; font-weight: 500; color: var(--fg); font-size: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { flex: none; width: 18px; height: 18px; color: var(--accent-2); transition: transform .2s ease; }
.faq details[open] summary .chev { transform: rotate(180deg); }
.faq summary:hover { color: var(--fg-strong); }
.faq .answer { padding: 0 22px 20px; color: var(--muted); }
.faq .answer p + p { margin-top: .9em; }

/* related posts */
.related { max-width: 1100px; margin: 64px auto 0; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

/* author strip */
.author-strip { max-width: var(--prose); margin: 56px auto 0; display: flex; gap: 16px; align-items: flex-start; border: 1px solid var(--border-soft); border-radius: var(--radius); background: var(--surface); padding: 22px 24px; }
.author-strip .monogram { width: 44px; height: 44px; font-size: .8rem; border-radius: 10px; }
.author-strip .txt b { font-family: var(--font-display); font-weight: 600; color: var(--fg-strong); }
.author-strip .txt p { color: var(--muted); font-size: .94rem; margin-top: 4px; }
.author-strip .txt a { color: var(--accent-2); font-family: var(--font-mono); font-size: .78rem; letter-spacing: .04em; }

/* prev/next nav */
.post-nav { max-width: var(--prose); margin: 40px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.post-nav a { border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 16px 18px; background: var(--surface); transition: border-color .2s, background .2s; }
.post-nav a:hover { border-color: var(--border-soft-2); background: var(--surface-2); }
.post-nav .dir { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); display: flex; align-items: center; gap: 6px; }
.post-nav .ttl { display: block; margin-top: 6px; color: var(--fg); font-weight: 500; font-size: .96rem; line-height: 1.3; }
.post-nav a.next { text-align: right; }
.back-to-blog { max-width: var(--prose); margin: 28px auto 0; font-family: var(--font-mono); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-2); display: inline-block; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width: 1280px) {
  .article-wrap { grid-template-columns: 200px minmax(0, var(--prose)) 1fr; gap: 56px; }
  .toc { display: block; grid-column: 1; position: sticky; top: 96px; align-self: start; }
  .article-body { grid-column: 2; max-width: none; margin: 0; }
}
@media (max-width: 1024px) {
  .post-grid, .related-grid { grid-template-columns: repeat(2, 1fr); }
  .featured { grid-template-columns: 1fr; }
  .featured .cover-wrap { min-height: 220px; }
}
@media (max-width: 860px) {
  .nav-links { position: fixed; inset: var(--nav-h) 0 auto 0; flex-direction: column; gap: 0; background: var(--bg-2); border-bottom: 1px solid var(--border-soft); padding: 10px 24px 22px; transform: translateY(-130%); transition: transform .3s ease; }
  .nav.open .nav-links { transform: translateY(0); }
  .nav-links a { padding: 13px 0; border-bottom: 1px solid var(--border-soft); }
  .nav-toggle { display: inline-flex; }
  .nav-actions .btn { display: none; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .post-grid, .related-grid { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .author-strip { flex-direction: column; }
  .featured .body, .cta-strip { padding: 24px; }
  .foot-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .post-card:hover, .btn:hover, .btn-primary:hover, .btn-ghost:hover { transform: none !important; }
}