/**
 * hackerstack theme CSS — byte-for-byte port of
 *   /Volumes/x9/claude-design/ui_kits/hackerstack/{index,blog,post,page}.html
 *
 * Generated by scripts/port-theme-css.py.
 *
 * NOTE: top-level `:root` and `html, body` selectors are mechanically
 * rewritten to `body[data-theme="hackerstack"]` so multiple theme.css
 * files can coexist in the bundle without overriding each other's
 * CSS custom properties. Other selectors (.brand, .nav-link, etc.)
 * are preserved verbatim from source — they reference var(--bg)/
 * var(--fg) which inherit from the scoped body.
 */

/*
 * Global Design → Bespoke-Token Theme Bridge (v2, 2026-07-18, spec
 * docs/specs/2026-07-18-global-design-bespoke-token-bridge.md §5, Phase 3
 * Batch B). ROOT brand-role tokens read `var(--vgc-<role>, <exact-default>)`;
 * un-applied → verbatim default → byte-identical (zero regression). Headings
 * use var(--fg) directly (no separate heading token). Two brand hues:
 * --accent (neon green — hero underline, CTA outline, tags, hover states,
 * .hs-pill-active) → primary; --amber (badges, code-filename, .hs-pill,
 * syntax highlight) is the broader chrome-visible secondary highlight →
 * accent. --accent-dim/-tint, --amber-tint, --code-string/-keyword/-comment
 * (syntax-highlight micro-tokens) are supporting, intentionally not bridged
 * (§5.4). Note: --heading ('IBM Plex Mono', UI/label font) and --mono
 * ('JetBrains Mono', code-block font) are TWO DIFFERENT monospace fonts —
 * only --heading (+ --body) bridge; --mono stays theme-fixed, same pattern
 * as terminal's untouched code font. The nav header's hardcoded
 * oklch(8.9% 0.025 264.0 / 0.92) was a literal copy of --bg's default —
 * redirected to color-mix (in oklch, matching this theme's color space) so
 * the header tracks the bridged background. The bottom commerce bridge's
 * `--vb-color-primary-fg: var(--bg)` also now sources the platform's
 * WCAG-derived `--vgc-color-primary-fg` (pickReadableForeground against the
 * chosen primary) — same fix class as firefly's --on-accent, so a
 * customized primary keeps legible button text instead of silently
 * regressing contrast against the unrelated (unbridged-for-this-purpose)
 * page background. Registry: src/lib/theme/theme-bridge-tokens.ts.
 */
/* ===== hackerstack/index.html <style> ===== */
body[data-theme="hackerstack"], [data-theme="hackerstack"] {
    overflow-x: clip;
    --bg:           var(--vgc-color-background, oklch(8.9% 0.025 264.0));   /* #0A0E1A navy */
    --surface:      oklch(12.6% 0.034 264.0);  /* card */
    --surface-low:  oklch(10.8% 0.030 264.0);
    --footer-bg:    oklch(6.8% 0.018 264.0);
    --fg:           var(--vgc-color-foreground, oklch(94.5% 0.012 225.0));  /* bone white */
    --muted-fg:     var(--vgc-color-secondary, oklch(61.5% 0.038 232.0));  /* steel */
    --subtle-fg:    oklch(48.0% 0.030 235.0);
    --border:       var(--vgc-color-neutral, oklch(18.5% 0.042 264.0));
    --accent:       var(--vgc-color-primary, oklch(89.0% 0.232 150.5));  /* neon green */
    --accent-dim:   oklch(72.0% 0.190 150.5);
    --accent-tint:  oklch(89.0% 0.232 150.5 / 8%);
    --amber:        var(--vgc-color-accent, oklch(78.5% 0.160 75.0));
    --amber-tint:   oklch(78.5% 0.160 75.0 / 10%);
    --code-string:  oklch(72.0% 0.150 248.0);
    --code-keyword: oklch(78.5% 0.160 75.0);
    --code-comment: oklch(48.0% 0.030 235.0);

    --heading: var(--vgc-font-heading, 'IBM Plex Mono', 'Courier New', monospace);
    --body:    var(--vgc-font-body, 'Inter', system-ui, -apple-system, sans-serif);
    --mono:    'JetBrains Mono', 'Fira Code', monospace;
    --container: 1200px;
  }
  [data-theme="hackerstack"] * { box-sizing: border-box; }
  body[data-theme="hackerstack"], [data-theme="hackerstack"] {
    margin: 0; padding: 0;
    background: var(--bg); color: var(--fg);
    font-family: var(--body);
    -webkit-font-smoothing: antialiased;
  }
  [data-theme="hackerstack"] a { color: inherit; text-decoration: none; }

  /* Nav */
  [data-theme="hackerstack"] nav.site-nav {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in oklch, var(--bg) 92%, transparent);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 14px clamp(16px, 4vw, 48px);
  }
  [data-theme="hackerstack"] .nav-inner {
    max-width: var(--container); margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
  }
  [data-theme="hackerstack"] .brand {
    font-family: var(--heading);
    font-size: 16px; font-weight: 600;
    letter-spacing: -0.01em;
  }
  [data-theme="hackerstack"] .brand .first { color: var(--accent); }
  [data-theme="hackerstack"] .nav-links { display: flex; align-items: center; gap: 28px; }
  [data-theme="hackerstack"] .nav-link {
    font-family: var(--body);
    font-size: 13px;
    color: var(--muted-fg);
    transition: color 150ms;
  }
  [data-theme="hackerstack"] .nav-link:hover { color: var(--fg); }
  [data-theme="hackerstack"] .divider { width: 1px; height: 16px; background: var(--border); }
  [data-theme="hackerstack"] .btn-outline {
    font-family: var(--heading);
    font-size: 12px; font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--accent);
    border: 1px solid oklch(89.0% 0.232 150.5 / 50%);
    padding: 6px 16px;
    border-radius: 3px;
    transition: background 150ms, border-color 150ms;
  }
  [data-theme="hackerstack"] .btn-outline:hover {
    background: oklch(89.0% 0.232 150.5 / 8%);
    border-color: oklch(89.0% 0.232 150.5 / 80%);
  }

  /* Hero */
  [data-theme="hackerstack"] .hero {
    max-width: var(--container);
    margin: 0 auto;
    padding: 72px clamp(16px, 4vw, 48px) 64px;
  }
  [data-theme="hackerstack"] .hero h1 {
    display: inline-block;
    font-family: var(--heading);
    font-size: clamp(36px, 5.4vw, 64px);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 0;
    color: var(--fg);
    border-bottom: 3px solid var(--accent);
    padding-bottom: 12px;
    max-width: 16ch;
  }
  [data-theme="hackerstack"] .stack-row {
    display: flex; flex-wrap: wrap; gap: 8px;
    margin-top: 32px;
  }
  [data-theme="hackerstack"] .stack-badge {
    font-family: var(--heading);
    font-size: 11px; font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--amber);
    border: 1px solid oklch(78.5% 0.160 75.0 / 35%);
    background: var(--amber-tint);
    padding: 3px 10px;
    border-radius: 2px;
  }

  [data-theme="hackerstack"] .hairline {
    max-width: var(--container);
    margin: 0 auto;
    height: 1px; background: var(--border);
    border: none;
  }

  /* Featured */
  [data-theme="hackerstack"] .label {
    font-family: var(--heading);
    font-size: 11px; font-weight: 400;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--muted-fg);
  }
  [data-theme="hackerstack"] section.region {
    max-width: var(--container);
    margin: 0 auto;
    padding: 40px clamp(16px, 4vw, 48px) 0;
  }
  [data-theme="hackerstack"] section.region:last-of-type { padding-bottom: 80px; }
  [data-theme="hackerstack"] .post-card {
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 6px;
    transition: border-color 180ms, box-shadow 180ms;
    display: block;
  }
  [data-theme="hackerstack"] .post-card:hover {
    border-color: oklch(89.0% 0.232 150.5 / 60%);
    box-shadow: 0 0 0 1px oklch(89.0% 0.232 150.5 / 15%);
  }
  [data-theme="hackerstack"] .featured-card { padding: 28px 32px; margin-top: 16px; }
  [data-theme="hackerstack"] .post-meta-row {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 14px;
  }
  [data-theme="hackerstack"] .tag {
    font-family: var(--heading);
    font-size: 10px; font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid oklch(89.0% 0.232 150.5 / 40%);
    background: oklch(89.0% 0.232 150.5 / 5%);
    padding: 2px 8px;
    border-radius: 2px;
  }
  [data-theme="hackerstack"] .reading-time {
    margin-left: auto;
    font-family: var(--heading);
    font-size: 11px;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--muted-fg);
  }
  [data-theme="hackerstack"] .featured-title {
    font-family: var(--heading);
    font-size: 36px;
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.2;
    margin: 0 0 12px;
    color: var(--fg);
    transition: color 150ms;
  }
  [data-theme="hackerstack"] .post-card:hover .featured-title, [data-theme="hackerstack"] .post-card:hover .post-title { color: var(--accent); }
  [data-theme="hackerstack"] .featured-excerpt {
    font-size: 16px; line-height: 1.75;
    color: var(--muted-fg);
    margin: 0 0 18px;
    max-width: 680px;
  }
  [data-theme="hackerstack"] .post-bottom {
    display: flex; align-items: center; justify-content: space-between;
  }
  [data-theme="hackerstack"] .read-link {
    font-family: var(--heading);
    font-size: 12px; font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--accent);
  }

  /* 2-col grid */
  [data-theme="hackerstack"] .grid-2 {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
    margin-top: 24px;
  }
  @media (max-width: 800px) { [data-theme="hackerstack"] .grid-2 { grid-template-columns: 1fr; } }
  [data-theme="hackerstack"] .grid-card { padding: 22px 24px; }
  [data-theme="hackerstack"] .post-title {
    font-family: var(--heading);
    font-size: 18px; font-weight: 500;
    line-height: 1.4;
    letter-spacing: -0.005em;
    color: var(--fg);
    margin: 0 0 8px;
    transition: color 150ms;
  }
  [data-theme="hackerstack"] .post-excerpt {
    font-size: 14px;
    line-height: 1.65;
    color: var(--muted-fg);
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  [data-theme="hackerstack"] .read-link-sm {
    font-family: var(--heading);
    font-size: 11px; font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--accent);
  }

  /* Code sample slab — distinctive Hackerstack flourish */
  [data-theme="hackerstack"] .code-slab {
    max-width: var(--container);
    margin: 56px auto 0;
    padding: 0 clamp(16px, 4vw, 48px);
  }
  [data-theme="hackerstack"] .code-block {
    background: var(--footer-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    font-family: var(--mono);
    font-size: 13.5px;
    line-height: 1.65;
    margin-top: 14px;
  }
  [data-theme="hackerstack"] .code-filename {
    font-family: var(--heading);
    font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--amber);
    background: var(--amber-tint);
    border-bottom: 1px solid oklch(78.5% 0.160 75.0 / 20%);
    padding: 7px 14px;
    display: flex; justify-content: space-between;
  }
  [data-theme="hackerstack"] .code-block pre {
    margin: 0; padding: 20px 24px;
    color: var(--fg);
    overflow-x: auto;
  }
  [data-theme="hackerstack"] .tk-key { color: var(--amber); }
  [data-theme="hackerstack"] .tk-str { color: var(--code-string); }
  [data-theme="hackerstack"] .tk-com { color: var(--code-comment); }
  [data-theme="hackerstack"] .tk-fn  { color: var(--accent); }

  /* Footer */
  [data-theme="hackerstack"] footer.site-footer {
    background: var(--footer-bg);
    border-top: 1px solid var(--border);
    margin-top: 64px;
  }
  [data-theme="hackerstack"] .footer-inner {
    max-width: var(--container); margin: 0 auto;
    padding: 40px clamp(16px, 4vw, 48px);
  }
  [data-theme="hackerstack"] .footer-row {
    display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
    flex-wrap: wrap;
  }
  [data-theme="hackerstack"] .footer-brand {
    font-family: var(--heading);
    font-size: 14px; font-weight: 600;
    display: block; margin-bottom: 4px;
  }
  [data-theme="hackerstack"] .footer-tag {
    font-family: var(--heading);
    font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--subtle-fg);
  }
  [data-theme="hackerstack"] .footer-nav {
    display: flex; flex-wrap: wrap; gap: 20px;
  }
  [data-theme="hackerstack"] .footer-nav a {
    font-size: 12px;
    color: var(--subtle-fg);
  }
  [data-theme="hackerstack"] .footer-nav a:hover { color: var(--fg); }
  [data-theme="hackerstack"] .powered-by {
    font-family: var(--heading);
    font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--subtle-fg);
    border: 1px solid var(--border);
    padding: 5px 10px;
    border-radius: 2px;
  }
  [data-theme="hackerstack"] .copy-row {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-family: var(--heading);
    font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--subtle-fg);
  }

/* ===== hackerstack/blog.html <style> ===== */
/* === Inner page (blog/post/page) — inherits theme typography & color from body === */
  [data-theme="hackerstack"] .ip-wrap { max-width: 1200px; margin: 0 auto; padding: 64px clamp(16px, 4vw, 32px); }
  [data-theme="hackerstack"] .ip-narrow { max-width: 760px; margin: 0 auto; padding: 64px clamp(16px, 4vw, 32px); }
  [data-theme="hackerstack"] .ip-prose-wrap { max-width: 720px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 32px); }
  [data-theme="hackerstack"] .ip-eyebrow { font-size: 11px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; opacity: 0.55; margin: 0 0 18px; }
  [data-theme="hackerstack"] .ip-h1 { font-size: clamp(40px, 6vw, 72px); font-weight: 800; letter-spacing: -0.025em; line-height: 1.05; margin: 0 0 18px; text-wrap: balance; }
  [data-theme="hackerstack"] .ip-h1-serif { font-family: var(--vb-heading-font, var(--heading, var(--display, inherit))); font-size: clamp(40px, 5.4vw, 64px); font-weight: 600; letter-spacing: -0.015em; line-height: 1.1; margin: 0 0 18px; text-wrap: balance; }
  [data-theme="hackerstack"] .ip-dek { font-size: 19px; line-height: 1.55; opacity: 0.7; margin: 0 0 28px; max-width: 640px; text-wrap: pretty; }
  [data-theme="hackerstack"] .ip-byline { display: flex; align-items: center; gap: 14px; margin: 0 0 40px; padding: 14px 0; border-top: 1px solid color-mix(in srgb, currentColor 12%, transparent); border-bottom: 1px solid color-mix(in srgb, currentColor 12%, transparent); }
  [data-theme="hackerstack"] .ip-byline > div { min-width: 0; flex: 1; }
  [data-theme="hackerstack"] .ip-avatar { width: 40px; height: 40px; border-radius: 9999px; background: color-mix(in srgb, currentColor 12%, transparent); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; flex-shrink: 0; }
  [data-theme="hackerstack"] .ip-byline .author { font-size: 14px; font-weight: 600; }
  [data-theme="hackerstack"] .ip-byline .meta { font-size: 13px; opacity: 0.55; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  [data-theme="hackerstack"] .ip-cover { width: 100%; aspect-ratio: 16/9; background-size: cover; background-position: center; margin: 0 0 40px; }
  [data-theme="hackerstack"] .ip-prose { font-size: 18px; line-height: 1.75; }
  [data-theme="hackerstack"] .ip-prose p { margin: 0 0 22px; opacity: 0.92; }
  [data-theme="hackerstack"] .ip-prose h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 700; letter-spacing: -0.015em; line-height: 1.2; margin: 40px 0 16px; }
  [data-theme="hackerstack"] .ip-prose h3 { font-size: clamp(20px, 2.4vw, 24px); font-weight: 700; margin: 32px 0 12px; }
  [data-theme="hackerstack"] .ip-prose blockquote { margin: 28px 0; padding: 4px 0 4px 22px; border-left: 3px solid color-mix(in srgb, currentColor 35%, transparent); font-style: italic; font-size: 21px; line-height: 1.5; opacity: 0.78; }
  [data-theme="hackerstack"] .ip-prose ul, [data-theme="hackerstack"] .ip-prose ol { margin: 0 0 22px; padding-left: 22px; }
  [data-theme="hackerstack"] .ip-prose li { margin: 0 0 8px; opacity: 0.92; line-height: 1.7; }
  [data-theme="hackerstack"] .ip-prose code:not(pre code) { font-family: 'JetBrains Mono', 'IBM Plex Mono', 'Courier New', monospace; font-size: 0.88em; background: color-mix(in srgb, currentColor 8%, transparent); padding: 1px 6px; border-radius: 4px; }
  [data-theme="hackerstack"] .ip-prose pre { font-family: 'JetBrains Mono', 'IBM Plex Mono', 'Courier New', monospace; background: color-mix(in srgb, currentColor 4%, transparent); border: 1px solid color-mix(in srgb, currentColor 12%, transparent); border-radius: 8px; padding: 16px 18px; overflow-x: auto; font-size: 14px; line-height: 1.65; margin: 22px 0; }
  [data-theme="hackerstack"] .ip-prose hr { border: none; height: 1px; background: color-mix(in srgb, currentColor 14%, transparent); margin: 36px 0; }
  [data-theme="hackerstack"] .ip-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 32px 0 0; }
  [data-theme="hackerstack"] .ip-tag { font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; padding: 5px 12px; border: 1px solid color-mix(in srgb, currentColor 22%, transparent); border-radius: 9999px; opacity: 0.7; text-decoration: none; color: inherit; white-space: nowrap; }
  [data-theme="hackerstack"] .ip-tag:hover { opacity: 1; }
  /* Blog index */
  [data-theme="hackerstack"] .ip-index-head { margin: 0 0 40px; padding-bottom: 24px; border-bottom: 1px solid color-mix(in srgb, currentColor 12%, transparent); }
  [data-theme="hackerstack"] .ip-filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0 0; }
  [data-theme="hackerstack"] .ip-filter { font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 6px 14px; border: 1px solid color-mix(in srgb, currentColor 18%, transparent); border-radius: 9999px; text-decoration: none; color: inherit; opacity: 0.7; white-space: nowrap; }
  [data-theme="hackerstack"] .ip-filter:hover { opacity: 1; border-color: color-mix(in srgb, currentColor 32%, transparent); }
  [data-theme="hackerstack"] .ip-filter.active { background: color-mix(in srgb, currentColor 14%, transparent); border-width: 2px; padding: 5px 13px; opacity: 1; font-weight: 700; }
  [data-theme="hackerstack"] .ip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
  @media (max-width: 900px) { [data-theme="hackerstack"] .ip-grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 600px) { [data-theme="hackerstack"] .ip-grid { grid-template-columns: 1fr; } }
  [data-theme="hackerstack"] .ip-card { display: block; border: 1px solid color-mix(in srgb, currentColor 12%, transparent); border-radius: 8px; overflow: hidden; text-decoration: none; color: inherit; transition: border-color 200ms, transform 200ms; }
  [data-theme="hackerstack"] .ip-card:hover { border-color: color-mix(in srgb, currentColor 30%, transparent); transform: translateY(-2px); }
  [data-theme="hackerstack"] .ip-card .img { width: 100%; aspect-ratio: 16/10; background-size: cover; background-position: center; }
  [data-theme="hackerstack"] .ip-card .body { padding: 18px 20px 20px; }
  [data-theme="hackerstack"] .ip-card .kicker { font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.6; margin: 0 0 8px; }
  [data-theme="hackerstack"] .ip-card h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; line-height: 1.3; margin: 0 0 8px; }
  [data-theme="hackerstack"] .ip-card p { font-size: 14px; line-height: 1.55; opacity: 0.7; margin: 0 0 12px; }
  [data-theme="hackerstack"] .ip-card .meta { font-size: 12px; opacity: 0.55; }
  [data-theme="hackerstack"] .ip-pag { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 56px 0 0; }
  [data-theme="hackerstack"] .ip-pag a, [data-theme="hackerstack"] .ip-pag span { min-width: 36px; height: 36px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid color-mix(in srgb, currentColor 16%, transparent); border-radius: 6px; text-decoration: none; color: inherit; font-size: 13px; font-weight: 600; }
  [data-theme="hackerstack"] .ip-pag .current { background: color-mix(in srgb, currentColor 12%, transparent); }
  /* Inline newsletter CTA — outline style, no blend tricks */
  [data-theme="hackerstack"] .ip-inline-cta { margin: 56px 0 0; padding: 36px; border: 1px solid color-mix(in srgb, currentColor 14%, transparent); border-radius: 12px; text-align: center; }
  [data-theme="hackerstack"] .ip-inline-cta h3 { font-size: 22px; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 8px; }
  [data-theme="hackerstack"] .ip-inline-cta p { font-size: 14px; opacity: 0.7; margin: 0 0 18px; }
  [data-theme="hackerstack"] .ip-inline-cta form { display: flex; gap: 8px; max-width: 380px; margin: 0 auto; }
  [data-theme="hackerstack"] .ip-inline-cta input { flex: 1; min-width: 0; background: transparent; border: 1px solid color-mix(in srgb, currentColor 22%, transparent); border-radius: 8px; color: inherit; font-family: inherit; font-size: 14px; padding: 10px 14px; outline: none; }
  [data-theme="hackerstack"] .ip-inline-cta button { background: transparent; border: 2px solid currentColor; border-radius: 8px; color: inherit; font-family: inherit; font-size: 13px; font-weight: 700; letter-spacing: 0.04em; padding: 9px 22px; cursor: pointer; white-space: nowrap; transition: background 150ms; }
  [data-theme="hackerstack"] .ip-inline-cta button:hover { background: color-mix(in srgb, currentColor 10%, transparent); }
  /* Comments */
  [data-theme="hackerstack"] .ip-comments { margin: 64px 0 0; padding-top: 32px; border-top: 1px solid color-mix(in srgb, currentColor 14%, transparent); }
  [data-theme="hackerstack"] .ip-comments h3 { font-size: 18px; font-weight: 700; margin: 0 0 24px; }
  [data-theme="hackerstack"] .ip-comment { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid color-mix(in srgb, currentColor 8%, transparent); }
  [data-theme="hackerstack"] .ip-comment > div { min-width: 0; flex: 1; }
  [data-theme="hackerstack"] .ip-comment:last-child { border-bottom: none; }
  [data-theme="hackerstack"] .ip-comment .who { font-size: 13px; font-weight: 600; }
  [data-theme="hackerstack"] .ip-comment .when { font-size: 12px; opacity: 0.55; }
  [data-theme="hackerstack"] .ip-comment .text { font-size: 14px; line-height: 1.55; opacity: 0.85; margin: 6px 0 0; }
  /* Back link */
  [data-theme="hackerstack"] .ip-back { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; letter-spacing: 0.04em; text-decoration: none; color: inherit; opacity: 0.65; margin: 0 0 24px; white-space: nowrap; }
  [data-theme="hackerstack"] .ip-back:hover { opacity: 1; }
  /* Static page form */
  [data-theme="hackerstack"] .ip-form { max-width: 520px; margin: 32px 0 0; }
  [data-theme="hackerstack"] .ip-form label { display: block; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; opacity: 0.7; margin: 0 0 6px; }
  [data-theme="hackerstack"] .ip-form .row { margin: 0 0 16px; }
  [data-theme="hackerstack"] .ip-form input, [data-theme="hackerstack"] .ip-form textarea { width: 100%; background: transparent; border: 1px solid color-mix(in srgb, currentColor 20%, transparent); border-radius: 8px; color: inherit; font-family: inherit; font-size: 15px; padding: 10px 14px; outline: none; }
  [data-theme="hackerstack"] .ip-form textarea { min-height: 120px; resize: vertical; }
  [data-theme="hackerstack"] .ip-form button { background: transparent; border: 2px solid currentColor; border-radius: 8px; color: inherit; font-family: inherit; font-size: 14px; font-weight: 700; letter-spacing: 0.04em; padding: 10px 24px; cursor: pointer; white-space: nowrap; transition: background 150ms; }
  [data-theme="hackerstack"] .ip-form button:hover { background: color-mix(in srgb, currentColor 10%, transparent); }

/* ===== Responsive overhaul (Sprint K Phase 3 Batch B) ===== */
@media (max-width: 1023px) {
  [data-theme="hackerstack"] .nav-links { display: none; }
}

/* ===== Bespoke mobile drawer (Old-30 Bespoke Parity, Wave 2) ===== */
[data-theme="hackerstack"] .hs-hamburger {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  background: none;
  border: none;
  color: var(--fg);
  cursor: pointer;
  border-radius: 3px;
}
[data-theme="hackerstack"] .hs-hamburger:hover { background: var(--surface-low); }
@media (max-width: 1023px) {
  [data-theme="hackerstack"] .hs-hamburger { display: grid; }
}

/* ===== Bespoke shop (Old-30 Bespoke Parity, Wave 2) ===== */
[data-theme="hackerstack"] .hs-shop-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) {
  [data-theme="hackerstack"] .hs-shop-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  [data-theme="hackerstack"] .hs-shop-grid { grid-template-columns: 1fr; }
}
[data-theme="hackerstack"] .hs-shop-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 10px;
  margin: -10px;
  transition: border-color 200ms;
}
[data-theme="hackerstack"] .hs-shop-card:hover {
  border-color: var(--accent-dim);
}
[data-theme="hackerstack"] .hs-pill,
[data-theme="hackerstack"] .hs-pill-active {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 3px;
  font-family: var(--heading);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid var(--border);
}
[data-theme="hackerstack"] .hs-pill { color: var(--amber); background: var(--amber-tint); }
[data-theme="hackerstack"] .hs-pill:hover { border-color: var(--accent); }
[data-theme="hackerstack"] .hs-pill-active { color: var(--accent); background: var(--accent-tint); border-color: var(--accent); }
[data-theme="hackerstack"] .hs-add-to-cart {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 11px 20px;
  border-radius: 3px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-family: var(--heading);
  font-size: 13px;
  cursor: pointer;
}
[data-theme="hackerstack"] .hs-add-to-cart:hover { background: var(--accent-tint); }
[data-theme="hackerstack"] .hs-cart-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--fg);
  text-decoration: none;
}
[data-theme="hackerstack"] .hs-cart-badge {
  position: absolute;
  top: -6px;
  inset-inline-end: -8px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  font-size: 10px;
  font-weight: 700;
  display: grid;
  place-items: center;
}
@media (max-width: 640px) {
  [data-theme="hackerstack"] .hs-product-grid { grid-template-columns: 1fr !important; }
}

/* ===== Page-builder block token bridge ===== */
/* Maps generic --vb-* renderer variables to this theme's own CSS custom properties */
[data-theme="hackerstack"] main {
  --vb-color-bg:        var(--bg);
  --vb-color-surface:   var(--surface);
  --vb-color-primary:   var(--accent);
  /* --vb-color-primary-fg: was missing — --accent is a bright neon green
     (~89% lightness), so hardcoded white button text had ~1.3:1 contrast
     (P-094 recurrence). --bg is this theme's near-black navy — pairs at
     ~14:1. v2 bridge: now sources the platform's WCAG-derived
     --vgc-color-primary-fg (computed against whatever primary the tenant
     applies) so a customized brand primary keeps legible button text; --bg
     remains the verbatim un-applied fallback. */
  --vb-color-primary-fg: var(--vgc-color-primary-fg, var(--bg));
  --vb-color-secondary: var(--accent-dim);
  --vb-color-text:      var(--fg);
  --vb-color-muted:     var(--muted-fg);
  --vb-color-border:    var(--border);
  --vb-heading-font:    var(--heading);
  --vb-body-font:       var(--body);
  --vb-radius:          4px;
  --vb-spacing-unit:    1rem;
}