/* article.css — flagship long-form layout v2
   Layered on top of site.css. Apply <body class="article-v2"> to any blog page.
*/

/* ------------------------------------------------------------------ */
/* Reading progress bar                                                 */
/* ------------------------------------------------------------------ */
.read-bar{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:100;
  background:transparent;pointer-events:none;
}
.read-bar .fill{
  height:100%;width:0%;
  background:var(--lime);
  transition:width .08s linear;
}
body.article-v2 header.site{top:3px;}

/* ------------------------------------------------------------------ */
/* Hero — typographic, takeaways-forward                               */
/* ------------------------------------------------------------------ */
.a2-hero{
  padding:72px 0 56px;
  border-bottom:1px solid var(--rule);
  position:relative;
}
.a2-hero-inner{
  max-width:1120px;margin:0 auto;padding:0 32px;
  display:grid;grid-template-columns:minmax(0,1fr);gap:0;
}
.a2-kicker{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-family:'JetBrains Mono',monospace;font-size:11px;
  text-transform:uppercase;letter-spacing:.14em;color:var(--muted);
  margin-bottom:36px;
}
.a2-kicker .dot{width:6px;height:6px;background:var(--lime);border-radius:50%;display:inline-block;}
.a2-kicker .pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border:1px solid var(--rule);border-radius:999px;
  color:var(--ink);
}
.a2-kicker .sep{opacity:.35;}

.a2-title{
  font-weight:700;
  font-size:clamp(56px,8.6vw,128px);
  line-height:.9;
  letter-spacing:-.035em;
  text-wrap:balance;
  max-width:16ch;
  margin-bottom:44px;
}
.a2-title .em{font-style:italic;font-weight:300;}
.a2-title .hl{background:var(--lime);color:#0B0B0B;padding:0 .08em .04em;border-radius:4px;}

.a2-deck{
  font-size:clamp(22px,2.2vw,28px);
  line-height:1.35;
  letter-spacing:-.015em;
  color:var(--ink);
  max-width:62ch;
  font-weight:400;
  margin-bottom:56px;
  text-wrap:pretty;
}

/* hero meta strip */
.a2-meta{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
}
.a2-meta .cell{
  padding:22px 20px;
  border-right:1px solid var(--rule);
}
.a2-meta .cell:last-child{border-right:none;}
.a2-meta .k{
  font-family:'JetBrains Mono',monospace;font-size:10px;
  text-transform:uppercase;letter-spacing:.12em;color:var(--muted);
  margin-bottom:8px;
}
.a2-meta .v{font-size:16px;font-weight:600;letter-spacing:-.005em;}
.a2-meta .cell.author-cell{display:flex;align-items:center;gap:12px;}
.a2-meta .cell.author-cell .av{width:38px;height:38px;border-radius:50%;overflow:hidden;background:var(--ink);border:1px solid var(--rule);flex:0 0 38px;}
.a2-meta .cell.author-cell .av img{width:100%;height:100%;object-fit:cover;object-position:center center;}
.a2-meta .cell.author-cell .stack{display:flex;flex-direction:column;line-height:1.15;}
.a2-meta .cell.author-cell .k{margin-bottom:2px;}
.a2-meta .cell.author-cell .v{font-size:15px;}

/* key takeaways */
.a2-takeaways{
  max-width:1120px;margin:48px auto 0;padding:0 32px;
}
.a2-takeaways-inner{
  border:1px solid var(--rule);border-radius:12px;
  padding:32px 36px;background:var(--paper-2);
  display:grid;grid-template-columns:220px 1fr;gap:40px;
}
.a2-takeaways .label{
  font-family:'JetBrains Mono',monospace;font-size:11px;
  text-transform:uppercase;letter-spacing:.14em;color:var(--muted);
  line-height:1.5;
}
.a2-takeaways .label .num{
  display:block;font-size:48px;font-weight:700;color:var(--ink);
  letter-spacing:-.03em;margin-top:8px;font-family:'League Spartan',sans-serif;
}
.a2-takeaways ol{list-style:none;counter-reset:ta;margin:0;padding:0;}
.a2-takeaways ol li{
  counter-increment:ta;
  padding:14px 0 14px 44px;
  border-bottom:1px solid var(--rule-soft);
  position:relative;
  font-size:17px;line-height:1.45;
  letter-spacing:-.005em;
  color:var(--ink);
}
.a2-takeaways ol li:last-child{border-bottom:none;padding-bottom:0;}
.a2-takeaways ol li:first-child{padding-top:0;}
.a2-takeaways ol li::before{
  content:"0" counter(ta);
  position:absolute;left:0;top:14px;
  font-family:'JetBrains Mono',monospace;font-size:11px;
  color:var(--muted);letter-spacing:.1em;
}
.a2-takeaways ol li:first-child::before{top:0;}
.a2-takeaways ol li b{font-weight:600;}

/* ------------------------------------------------------------------ */
/* Three-zone layout: TOC | article | share rail                       */
/* ------------------------------------------------------------------ */
.a2-body{
  max-width:1280px;margin:0 auto;padding:64px 32px 80px;
  display:grid;
  grid-template-columns:220px minmax(0,680px) 220px;
  gap:48px;
  justify-content:center;
}
.a2-rail-left{position:relative;}
.a2-rail-right{position:relative;}

.a2-toc{
  position:sticky;top:120px;
  font-family:'JetBrains Mono',monospace;font-size:12px;
  max-height:calc(100vh - 160px);
  overflow-y:auto;
}
.a2-toc .t{
  text-transform:uppercase;letter-spacing:.14em;color:var(--muted);
  font-size:10px;margin-bottom:18px;padding-bottom:12px;
  border-bottom:1px solid var(--rule);
  display:flex;justify-content:space-between;align-items:center;
}
.a2-toc .t .remaining{color:var(--ink);font-weight:600;}
.a2-toc ol{list-style:none;margin:0;padding:0;counter-reset:toc;}
.a2-toc li{counter-increment:toc;}
.a2-toc a{
  display:grid;grid-template-columns:24px 1fr;gap:8px;
  padding:9px 0 9px 10px;margin-left:-10px;
  color:var(--muted);line-height:1.35;
  border-left:2px solid transparent;
  transition:color .15s,border-color .15s;
}
.a2-toc a::before{
  content:"0" counter(toc);
  font-size:10px;opacity:.7;
}
.a2-toc a:hover{color:var(--ink);}
.a2-toc a.active{color:var(--ink);border-left-color:var(--lime);background:color-mix(in oklab, var(--lime) 14%, transparent);}
body.dark .a2-toc a.active{background:color-mix(in oklab, var(--lime) 20%, transparent);}

/* share rail */
.a2-share{
  position:sticky;top:120px;
  display:flex;flex-direction:column;gap:10px;
  font-family:'JetBrains Mono',monospace;font-size:11px;
}
.a2-share .t{
  text-transform:uppercase;letter-spacing:.14em;color:var(--muted);
  font-size:10px;margin-bottom:6px;padding-bottom:10px;
  border-bottom:1px solid var(--rule);
}
.a2-share button, .a2-share a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;
  background:transparent;border:1px solid var(--rule-soft);
  border-radius:8px;color:var(--ink);cursor:pointer;
  font-family:inherit;font-size:11px;text-transform:uppercase;letter-spacing:.1em;
  transition:all .15s;
}
.a2-share button:hover, .a2-share a:hover{
  border-color:var(--ink);background:var(--paper-2);
}
.a2-share .ic{
  width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--paper-2);flex:0 0 22px;
}
.a2-share .ic svg{width:12px;height:12px;}
.a2-share .copied{
  font-size:10px;color:var(--muted);text-align:center;
  opacity:0;transition:opacity .2s;height:0;
}
.a2-share .copied.on{opacity:1;height:auto;margin-top:4px;}

/* pull quotes (placed in margin via float) */
.pullquote{
  float:right;clear:right;
  width:260px;margin:12px -260px 16px 32px;
  padding:20px 0 18px;
  border-top:2px solid var(--lime);
  border-bottom:1px solid var(--rule-soft);
  font-family:'League Spartan',sans-serif;
  font-size:22px;line-height:1.2;
  letter-spacing:-.02em;
  font-weight:500;
  color:var(--ink);
  text-wrap:balance;
}
.pullquote .attr{
  display:block;margin-top:12px;
  font-family:'JetBrains Mono',monospace;
  font-size:10px;text-transform:uppercase;letter-spacing:.12em;
  color:var(--muted);font-weight:400;
}
.pullquote.left{
  float:left;clear:left;
  margin:12px 32px 16px -260px;
}

/* ------------------------------------------------------------------ */
/* Prose                                                               */
/* ------------------------------------------------------------------ */
.a2-prose{
  font-family:'League Spartan',system-ui,sans-serif;
  font-size:19px;line-height:1.62;letter-spacing:-.003em;
  color:var(--ink);
}
.a2-prose p{margin:0 0 24px;text-wrap:pretty;max-width:66ch;}
.a2-prose .dropcap::first-letter{
  float:left;font-size:84px;line-height:.82;
  padding:4px 12px 0 0;font-weight:700;
  letter-spacing:-.04em;color:var(--ink);
  font-family:'League Spartan',sans-serif;
}
.a2-prose .lede{
  font-size:22px;line-height:1.45;
  color:var(--ink);margin-bottom:40px;
  letter-spacing:-.01em;max-width:56ch;
}
.a2-prose h2{
  font-size:36px;font-weight:600;
  letter-spacing:-.028em;line-height:1.05;
  margin:72px 0 8px;
  text-wrap:balance;
  scroll-margin-top:120px;
  display:flex;align-items:baseline;gap:16px;
}
.a2-prose h2 .num{
  font-family:'JetBrains Mono',monospace;
  font-size:12px;font-weight:500;letter-spacing:.1em;
  color:var(--muted);flex:0 0 auto;
  padding-top:8px;
}
.a2-prose h2 .anchor{
  opacity:0;transition:opacity .15s;
  font-size:20px;color:var(--muted);margin-left:4px;
  text-decoration:none;
}
.a2-prose h2:hover .anchor{opacity:1;}
.a2-prose h2 + p{margin-top:20px;}
.a2-prose h3{
  font-size:22px;font-weight:600;
  letter-spacing:-.015em;margin:44px 0 14px;
  scroll-margin-top:120px;
}
.a2-prose ul,.a2-prose ol{margin:0 0 24px 22px;}
.a2-prose li{font-size:18px;line-height:1.6;margin-bottom:10px;max-width:62ch;}
.a2-prose strong{font-weight:600;}
.a2-prose em{font-style:italic;}
.a2-prose code{
  font-family:'JetBrains Mono',monospace;font-size:14px;
  background:var(--paper-2);padding:2px 6px;border-radius:3px;
}
.a2-prose pre{
  font-family:'JetBrains Mono',monospace;font-size:13px;
  background:var(--paper-2);padding:24px;border-radius:8px;
  overflow-x:auto;border:1px solid var(--rule-soft);
  margin:32px 0;line-height:1.55;
  max-width:none;
}
.a2-prose a.inline{
  border-bottom:1px solid var(--ink);
}
.a2-prose a.inline:hover{color:#158A3B;border-color:#158A3B;}
.a2-prose hr{
  border:none;
  margin:56px auto;
  width:80px;
  height:12px;
  background:
    radial-gradient(circle at 10px 6px, var(--muted) 1.5px, transparent 2px),
    radial-gradient(circle at 40px 6px, var(--muted) 1.5px, transparent 2px),
    radial-gradient(circle at 70px 6px, var(--muted) 1.5px, transparent 2px);
  opacity:.4;
}

/* inline footnotes */
.fn{
  cursor:pointer;display:inline-block;
  font-family:'JetBrains Mono',monospace;font-size:11px;
  vertical-align:super;line-height:1;
  color:var(--ink);
  background:var(--lime);
  padding:2px 5px;border-radius:3px;
  margin:0 2px;text-decoration:none;
  font-weight:600;
}
.fn:hover{background:var(--ink);color:var(--lime);}

.footnotes{
  margin-top:64px;padding-top:24px;
  border-top:1px solid var(--rule);
  font-size:14px;color:var(--muted);line-height:1.55;
  counter-reset:fn;
}
.footnotes ol{list-style:none;padding:0;margin:0;counter-reset:fn;}
.footnotes li{
  counter-increment:fn;
  padding:10px 0 10px 36px;
  position:relative;
  border-bottom:1px solid var(--rule-soft);
}
.footnotes li:last-child{border-bottom:none;}
.footnotes li::before{
  content:counter(fn);
  position:absolute;left:0;top:10px;
  font-family:'JetBrains Mono',monospace;font-size:11px;
  background:var(--lime);color:var(--ink);
  padding:2px 7px;border-radius:3px;font-weight:600;
}

/* figure */
.a2-fig{
  margin:40px 0;
  padding:24px;
  border:1px solid var(--rule);
  border-radius:10px;
  background:var(--paper-2);
}
.a2-fig img{width:100%;border-radius:6px;}
.a2-fig .cap{
  font-family:'JetBrains Mono',monospace;font-size:11px;
  text-transform:uppercase;letter-spacing:.1em;color:var(--muted);
  margin-top:16px;padding-top:12px;
  border-top:1px solid var(--rule-soft);
}

/* callout override for article spacing */
.a2-prose .callout{margin:36px 0;}
.a2-prose blockquote{
  border-left:3px solid var(--lime);
  padding:20px 28px;
  font-size:22px;line-height:1.4;
  letter-spacing:-.015em;
  margin:36px 0;
  background:var(--paper-2);
  font-weight:500;
  max-width:58ch;
  text-wrap:balance;
}

/* ------------------------------------------------------------------ */
/* End-of-article (author + prev/next)                                 */
/* ------------------------------------------------------------------ */
.a2-endcap{
  max-width:1120px;margin:0 auto;padding:0 32px 40px;
}
.a2-endcap .author-big{
  display:grid;grid-template-columns:120px 1fr auto;gap:28px;
  padding:36px 0;
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  align-items:center;
}
.a2-endcap .author-big .av{
  width:96px;height:96px;border-radius:50%;overflow:hidden;
  background:var(--ink);border:1px solid var(--rule);
}
.a2-endcap .author-big .av img{width:100%;height:100%;object-fit:cover;object-position:center center;}
.a2-endcap .author-big .k{
  font-family:'JetBrains Mono',monospace;font-size:11px;
  text-transform:uppercase;letter-spacing:.12em;color:var(--muted);
  margin-bottom:8px;
}
.a2-endcap .author-big h3{font-size:28px;font-weight:600;letter-spacing:-.02em;margin-bottom:6px;}
.a2-endcap .author-big p{font-size:15px;color:var(--muted);line-height:1.5;max-width:60ch;}
.a2-endcap .author-big .book{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--ink);color:var(--paper);
  padding:12px 20px;border-radius:999px;
  font-size:14px;font-weight:600;
  white-space:nowrap;
}
body.dark .a2-endcap .author-big .book{background:var(--lime);color:#0B0B0B;}

/* prev/next strip */
.a2-nextprev{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border-bottom:1px solid var(--rule);
}
.a2-nextprev a{
  padding:32px 0;display:block;
}
.a2-nextprev a:first-child{border-right:1px solid var(--rule);padding-right:32px;}
.a2-nextprev a:last-child{padding-left:32px;text-align:right;}
.a2-nextprev .k{
  font-family:'JetBrains Mono',monospace;font-size:10px;
  text-transform:uppercase;letter-spacing:.14em;color:var(--muted);
  margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.a2-nextprev a:last-child .k{justify-content:flex-end;}
.a2-nextprev h4{
  font-size:22px;font-weight:600;letter-spacing:-.015em;
  line-height:1.2;max-width:24ch;
}
.a2-nextprev a:last-child h4{margin-left:auto;}

/* ------------------------------------------------------------------ */
/* Responsive                                                          */
/* ------------------------------------------------------------------ */
@media (max-width:1180px){
  .a2-body{grid-template-columns:minmax(0,720px);justify-content:center;}
  .a2-rail-left,.a2-rail-right{display:none;}
  .pullquote,.pullquote.left{
    float:none;width:auto;margin:28px 0;
    padding:22px 24px;
    border:none;border-top:2px solid var(--lime);
    border-bottom:1px solid var(--rule-soft);
  }
  .a2-takeaways-inner{grid-template-columns:1fr;gap:24px;}
  .a2-meta{grid-template-columns:1fr 1fr;}
  .a2-meta .cell{border-right:none;border-bottom:1px solid var(--rule);}
}

@media (max-width:680px){
  .a2-title{font-size:clamp(44px,12vw,56px);}
  .a2-meta{grid-template-columns:1fr;}
  .a2-endcap .author-big{grid-template-columns:80px 1fr;}
  .a2-endcap .author-big .av{width:72px;height:72px;}
  .a2-endcap .author-big .book{grid-column:1/-1;justify-self:start;}
  .a2-nextprev{grid-template-columns:1fr;}
  .a2-nextprev a:first-child{border-right:none;border-bottom:1px solid var(--rule);padding-right:0;}
  .a2-nextprev a:last-child{padding-left:0;text-align:left;}
  .a2-nextprev a:last-child .k{justify-content:flex-start;}
  .a2-nextprev a:last-child h4{margin-left:0;}
}

@media (max-width:640px){
  .a2-hero{padding:40px 0 32px;}
  .a2-hero-inner,.a2-takeaways,.a2-endcap{padding-left:20px;padding-right:20px;}
  .a2-takeaways{margin-top:24px;}
  .a2-takeaways-inner{padding:24px 20px;gap:20px;}
  .a2-title{font-size:clamp(32px,9vw,44px);}
  .a2-deck{font-size:clamp(18px,4.5vw,22px);margin-bottom:36px;}
  .a2-body{padding:40px 20px 56px;}
  .a2-prose p,.a2-prose li{font-size:17px;}
  .a2-prose h2{font-size:28px;margin-top:48px;}
  .a2-prose h3{font-size:20px;}
}

/* ------------------------------------------------------------------ */
/* Print                                                               */
/* ------------------------------------------------------------------ */
@media print{
  @page{margin:22mm 18mm;}
  body{background:#fff;color:#000;font-size:11pt;line-height:1.5;}
  header.site, footer.site, .read-bar, .a2-rail-left, .a2-rail-right,
  .cta-band, .related, .nav-cta, .crumb, .a2-endcap .book,
  .a2-nextprev{display:none !important;}
  .a2-body{display:block;max-width:none;padding:0;}
  .a2-hero{padding:0 0 16pt;border-bottom:1pt solid #000;}
  .a2-title{font-size:32pt;line-height:1.05;max-width:none;}
  .a2-deck{font-size:13pt;color:#333;}
  .a2-meta{display:block;border:none;}
  .a2-meta .cell{display:inline-block;border:none;padding:4pt 18pt 4pt 0;}
  .a2-takeaways-inner{background:#f2f1eb;border:1pt solid #000;}
  .a2-prose{font-size:10.5pt;}
  .a2-prose h2{font-size:16pt;margin-top:24pt;}
  .a2-prose h3{font-size:13pt;}
  .a2-prose pre{font-size:9pt;background:#f2f1eb;border:.5pt solid #ccc;page-break-inside:avoid;}
  .pullquote{page-break-inside:avoid;break-inside:avoid;border-top:1.5pt solid #000;}
  .callout,.dtable,.metric-row{page-break-inside:avoid;break-inside:avoid;}
  .a2-prose a.inline{color:#000;text-decoration:underline;}
  .footnotes li::before{background:#000;color:#fff;}
}
