/* ============================================================================
   Source · blog.css
   Shared styles for the blog overview (/blog) and every blog article
   (/blog/<slug>). Loaded AFTER /site.css, which holds the design tokens.

   Do not paste article styles into individual post files. Every post links
   this one stylesheet, so a change here updates the whole blog at once.
   ============================================================================ */

/* ==================== SHARED SHELL ==================== */
.blwrap{max-width:900px;margin:0 auto;padding:48px 24px 80px}
.bl-eyebrow{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.bl-back{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:26px;transition:color .14s}
.bl-back:hover{color:var(--accent)}

/* ==================== OVERVIEW: HERO ==================== */
.blwrap h1{font-family:var(--font-serif);font-size:48px;font-weight:600;letter-spacing:-.025em;line-height:1.04;margin:0;text-wrap:balance;max-width:640px}
.blwrap h1 em{font-style:italic;color:var(--accent);font-weight:400}
.bl-lede{font-family:var(--font-serif);font-style:italic;font-size:18px;color:var(--ink-soft);margin:16px 0 0;max-width:600px;line-height:1.55}
.bl-soon{display:inline-block;margin-top:20px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);border:1px solid var(--rule-hi);background:var(--bg-2);border-radius:30px;padding:6px 14px;font-weight:600}

/* ==================== OVERVIEW: SECTION HEADING WITH RULE ==================== */
.bl-sechead{display:flex;align-items:baseline;gap:20px;margin:56px 0 26px}
.bl-sechead h2{font-family:var(--font-serif);font-size:26px;font-weight:600;letter-spacing:-.018em;margin:0;white-space:nowrap}
.bl-sechead::after{content:"";flex:1;height:1px;background:var(--rule)}
.bl-sechead .count{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);white-space:nowrap}

/* ==================== OVERVIEW: TAG PILLS ==================== */
.bl-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.bl-tags .tag{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;font-weight:600;padding:4px 9px;border-radius:4px}
.bl-tags .tag.t1{color:#8A4B12;background:color-mix(in srgb,var(--accent-2) 13%,transparent)}
.bl-tags .tag.t2{color:#03543F;background:color-mix(in srgb,var(--accent) 11%,transparent)}
.bl-tags .when{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;color:var(--ink-faint);margin-left:4px;font-variant-numeric:tabular-nums}

/* ==================== OVERVIEW: FEATURED POST ==================== */
.bl-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);gap:38px;align-items:center;color:inherit}
.bl-hero .shot{position:relative;overflow:hidden;border:1px solid var(--rule);border-radius:8px;background:var(--bg-2);aspect-ratio:4/3}
.bl-hero .shot img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1)}
.bl-hero:hover .shot img{transform:scale(1.03)}
.bl-hero h3{font-family:var(--font-serif);font-size:36px;font-weight:600;letter-spacing:-.025em;line-height:1.1;margin:16px 0 0;text-wrap:balance}
.bl-hero:hover h3{color:var(--accent)}
.bl-hero p{font-family:var(--font-serif);font-size:15.5px;line-height:1.62;color:var(--ink-soft);margin:16px 0 0;max-width:520px}
.bl-hero .read{display:inline-flex;align-items:center;gap:7px;margin-top:22px;font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--ink);border-bottom:1.5px solid var(--ink);padding-bottom:3px}
.bl-hero:hover .read{color:var(--accent);border-bottom-color:var(--accent)}

/* ==================== OVERVIEW: CARD GRID ==================== */
.bl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:8px}
.bl-card{display:flex;flex-direction:column;border:1px solid var(--rule);border-radius:8px;overflow:hidden;background:var(--bg);color:inherit;transition:border-color .16s,box-shadow .16s,transform .16s}
.bl-card:hover{border-color:var(--rule-hi);box-shadow:0 6px 22px rgba(10,10,10,.06);transform:translateY(-2px)}
.bl-card .shot{overflow:hidden;background:var(--bg-2);aspect-ratio:16/10}
.bl-card .shot img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1)}
.bl-card:hover .shot img{transform:scale(1.04)}
/* Demo cards are plain divs, not links, so they create no dead URLs. Delete the
   fenced demo block on /blog/index.html before launch and this rule stops mattering. */
.bl-card.is-demo{cursor:default}
.bl-card.is-demo:hover{border-color:var(--rule);box-shadow:none;transform:none}
.bl-card.is-demo:hover h3{color:var(--ink)}
.bl-card.is-demo:hover .shot img{transform:none}
.bl-card .cbody{display:flex;flex-direction:column;flex:1;padding:18px 20px 0}
.bl-card h3{font-family:var(--font-serif);font-size:19px;font-weight:600;letter-spacing:-.015em;line-height:1.24;margin:13px 0 0;text-wrap:balance}
.bl-card:hover h3{color:var(--accent)}
.bl-card p{font-family:var(--font-serif);font-size:13.5px;line-height:1.58;color:var(--ink-soft);margin:9px 0 18px}
.bl-auth{display:flex;align-items:center;gap:10px;margin-top:auto;padding:14px 20px;border-top:1px solid var(--rule);background:var(--bg-2)}
.bl-auth .av{width:28px;height:28px;flex:0 0 28px;border-radius:50%;background:var(--accent);color:var(--bg);display:flex;align-items:center;justify-content:center;font-family:var(--font-sans);font-size:10.5px;font-weight:700;letter-spacing:.02em}
.bl-auth .who{font-family:var(--font-sans);font-size:12px;font-weight:600;color:var(--ink);line-height:1.3}
.bl-auth .upd{font-family:var(--font-mono);font-size:10px;color:var(--ink-faint);line-height:1.3;letter-spacing:.03em}

/* Load more */
.bl-more{display:flex;justify-content:center;margin-top:34px}
.bl-more a{font-family:var(--font-sans);font-size:13px;font-weight:600;color:var(--ink);border:1.5px solid var(--rule-hi);border-radius:6px;padding:12px 26px;transition:border-color .15s,color .15s}
.bl-more a:hover{border-color:var(--accent);color:var(--accent)}

/* Topic legend */
.bl-cover{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--rule);border-radius:6px;overflow:hidden;margin-top:24px;background:var(--bg)}
.bl-cover div{padding:16px;border-right:1px solid var(--rule)}
.bl-cover div:last-child{border-right:none}
.bl-cover .t{font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}
.bl-cover .d{font-family:var(--font-serif);font-size:13.5px;color:var(--ink-soft);line-height:1.5}

/* Newsletter capture block, reused on both page types */
.bl-cap{margin-top:38px;background:var(--bg-2);border:1px solid var(--rule-hi);border-left:3px solid var(--accent);border-radius:0 6px 6px 0;padding:28px 30px;max-width:520px}
.bl-cap .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.bl-cap h2{font-family:var(--font-serif);font-size:24px;font-weight:600;margin:8px 0 6px;text-wrap:balance;letter-spacing:-.015em}
.bl-cap .sub{font-family:var(--font-serif);font-style:italic;font-size:14.5px;color:var(--ink-soft);margin-bottom:16px;line-height:1.55}

/* ==================== ARTICLE ==================== */
.art{max-width:760px;margin:0 auto;padding:40px 24px 72px}
.art h1{font-family:var(--font-serif);font-size:46px;font-weight:600;letter-spacing:-.028em;line-height:1.06;margin:10px 0 0;text-wrap:balance}
.art .dek{font-family:var(--font-serif);font-style:italic;font-size:19px;color:var(--ink-soft);line-height:1.5;margin:18px 0 0;max-width:640px}

/* Tag row above the headline, same pills the overview cards use */
.art .bl-tags{margin-bottom:14px}

/* Byline: author avatar, name, publish date. Sits under the dek. */
.art-byline{display:flex;align-items:center;gap:11px;margin-top:24px;padding-top:20px;border-top:1px solid var(--rule)}
.art-byline .av{width:36px;height:36px;flex:0 0 36px;border-radius:50%;background:var(--accent);color:var(--bg);display:flex;align-items:center;justify-content:center;font-family:var(--font-sans);font-size:12.5px;font-weight:700}
.art-byline .who{font-family:var(--font-sans);font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.35}
.art-byline .role{font-family:var(--font-mono);font-size:10.5px;color:var(--ink-faint);letter-spacing:.04em;line-height:1.35}

/* Optional hero image, directly under the byline */
.art-hero{margin:30px 0 0;border:1px solid var(--rule);border-radius:8px;overflow:hidden;background:var(--bg-2);aspect-ratio:16/9}
.art-hero img{width:100%;height:100%;object-fit:cover}
.art-hero + .art-cap{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;color:var(--ink-faint);margin-top:10px;line-height:1.5}

/* Related posts, using the same cards as the overview */
.art-related{max-width:1100px;margin:0 auto;padding:0 24px 72px}
.art-related .bl-grid{margin-top:0}

/* Article meta strip: date, researcher, city, turnaround, cost */
.art-meta{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--rule);border-radius:6px;overflow:hidden;background:var(--bg);margin:34px 0 6px}
.art-meta > div{padding:16px 18px;border-right:1px solid var(--rule)}
.art-meta > div:last-child{border-right:none}
.art-meta .k{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);padding-bottom:12px;border-bottom:1px solid var(--rule);margin-bottom:14px}
.art-meta .v{font-family:var(--font-sans);font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.35}

/* Article body */
.art-body{margin-top:40px}
.art-body p{font-family:var(--font-serif);font-size:18px;line-height:1.68;color:var(--ink);margin:0 0 22px;max-width:680px}
.art-body p.first{font-size:20px;line-height:1.62}
.art-body h2{font-family:var(--font-serif);font-size:27px;font-weight:600;letter-spacing:-.02em;line-height:1.2;margin:44px 0 16px;text-wrap:balance}
.art-body h3{font-family:var(--font-serif);font-size:21px;font-weight:600;letter-spacing:-.014em;margin:34px 0 12px}
.art-body a{color:var(--accent);border-bottom:1px solid color-mix(in srgb,var(--accent) 32%,transparent)}
.art-body a:hover{border-bottom-color:var(--accent)}
.art-body ul,.art-body ol{font-family:var(--font-serif);font-size:18px;line-height:1.66;color:var(--ink);max-width:680px;padding-left:22px;margin:0 0 22px}
.art-body li{margin-bottom:9px}
.art-body strong{font-weight:600}
.art-body figure{margin:34px 0}
.art-body figure img{border:1px solid var(--rule);border-radius:6px;width:100%;height:auto}
.art-body figcaption{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.06em;color:var(--ink-faint);margin-top:10px;line-height:1.5}

/* Key facts. The extractable summary. AI answer engines quote this block, so
   every line must be a complete, checkable statement that stands on its own. */
.art-key{border:1px solid var(--rule-hi);border-radius:8px;background:var(--bg-2);padding:22px 26px;margin:30px 0 0}
.art-key .k{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:12px}
.art-key ul{margin:0;padding-left:20px;list-style:none}
.art-key li{position:relative;font-family:var(--font-serif);font-size:15.5px;line-height:1.6;color:var(--ink);margin-bottom:9px;max-width:620px}
.art-key li:last-child{margin-bottom:0}
.art-key li::before{content:"";position:absolute;left:-20px;top:.62em;width:7px;height:1.5px;background:var(--accent)}

/* Questions this post answers. Visible copy that backs the FAQPage schema. */
.art-qa{margin-top:44px;border-top:1px solid var(--rule);padding-top:28px}
.art-qa > .k{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:18px}
.art-qa details{border-bottom:1px solid var(--rule);padding:14px 0}
.art-qa details:last-of-type{border-bottom:none}
.art-qa summary{font-family:var(--font-serif);font-size:18px;font-weight:600;letter-spacing:-.012em;line-height:1.35;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.art-qa summary::-webkit-details-marker{display:none}
.art-qa summary::after{content:"+";font-family:var(--font-mono);font-size:17px;color:var(--accent);flex:0 0 auto;line-height:1.2}
.art-qa details[open] summary::after{content:"–"}
.art-qa summary:hover{color:var(--accent)}
.art-qa .a{font-family:var(--font-serif);font-size:16px;line-height:1.65;color:var(--ink-soft);margin:12px 0 4px;max-width:660px}

/* Pull quote */
.art-quote{margin:34px 0;background:var(--bg-2);border-left:3px solid var(--accent);border-radius:0 6px 6px 0;padding:26px 30px}
.art-quote p{font-family:var(--font-serif);font-style:italic;font-size:19px;line-height:1.55;color:var(--ink);margin:0;max-width:none}
.art-quote cite{display:block;font-family:var(--font-mono);font-style:normal;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin-top:14px}

/* Proof of fulfilment panel */
.art-proof{border:1px solid var(--rule);border-radius:8px;overflow:hidden;margin:38px 0}
.art-proof .ph{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#053D2C;color:#fff;padding:13px 20px;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:600}
.art-proof .ph .ok{color:#9deccb}
.art-proof .pb{display:grid;grid-template-columns:repeat(4,1fr);background:var(--bg)}
.art-proof .pb > div{padding:18px 20px;border-right:1px solid var(--rule)}
.art-proof .pb > div:last-child{border-right:none}
.art-proof .pb .k{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);padding-bottom:12px;border-bottom:1px solid var(--rule);margin-bottom:14px}
.art-proof .pb .v{font-family:var(--font-serif);font-size:19px;font-weight:600;color:var(--ink);line-height:1.3}

/* Author note */
.art-author{border-top:1px solid var(--rule);margin-top:38px;padding-top:20px;font-family:var(--font-sans);font-size:13px;line-height:1.6;color:var(--ink-soft);max-width:680px}
.art-author strong{color:var(--ink);font-weight:600}

/* Post-article CTA */
.art-cta{margin-top:30px;background:var(--bg-2);border:1px solid var(--rule-hi);border-left:3px solid var(--accent);border-radius:0 6px 6px 0;padding:26px 30px}
.art-cta .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600}
.art-cta p{font-family:var(--font-serif);font-size:16px;line-height:1.6;color:var(--ink-soft);margin:10px 0 18px;max-width:600px}
.art-cta .go{display:inline-block;background:var(--accent);color:var(--bg);border-radius:6px;padding:12px 22px;font-family:var(--font-sans);font-size:14px;font-weight:600;transition:filter .14s}
.art-cta .go:hover{filter:brightness(1.08)}

/* Next / previous post */
.art-more{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:34px}
.art-more a{border:1px solid var(--rule);border-radius:6px;padding:18px 20px;color:inherit;transition:border-color .14s,background .14s}
.art-more a:hover{border-color:var(--accent);background:var(--selected)}
.art-more .k{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:8px}
.art-more .t{font-family:var(--font-serif);font-size:16px;font-weight:600;line-height:1.3}

/* ==================== RESPONSIVE ==================== */
@media(max-width:1000px){
  .bl-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .bl-hero{gap:28px}
  .bl-hero h3{font-size:30px}
}
@media(max-width:760px){
  .bl-sechead{margin:42px 0 20px}
  .bl-sechead h2{font-size:22px}
  .bl-sechead .count{display:none}
  .bl-hero{grid-template-columns:1fr;gap:20px}
  .bl-hero .shot{aspect-ratio:16/10}
  .bl-hero h3{font-size:26px}
  .bl-hero p{font-size:15px}
  .bl-grid{grid-template-columns:1fr;gap:20px}
  .blwrap h1{font-size:34px}
  .bl-cover{grid-template-columns:1fr 1fr}
  .bl-cover div:nth-child(2n){border-right:none}
  .bl-cover div:nth-child(n+3){border-top:1px solid var(--rule)}
  .art{padding:28px 20px 56px}
  .art h1{font-size:32px}
  .art .dek{font-size:17px}
  .art-body p{font-size:17px}
  .art-body p.first{font-size:18px}
  .art-body h2{font-size:23px;margin-top:36px}
  .art-meta{grid-template-columns:1fr 1fr}
  .art-meta > div{border-bottom:1px solid var(--rule)}
  .art-meta > div:nth-child(2n){border-right:none}
  .art-meta > div:last-child{border-bottom:none}
  .art-proof .pb{grid-template-columns:1fr 1fr}
  .art-proof .pb > div{border-bottom:1px solid var(--rule)}
  .art-proof .pb > div:nth-child(2n){border-right:none}
  .art-proof .pb > div:nth-last-child(-n+2){border-bottom:none}
  .art-quote{padding:20px 22px}
  .art-quote p{font-size:17px}
  .art-more{grid-template-columns:1fr}
}

/* Comparison table. Source palette. Scrolls horizontally on small screens. */
.art-table-wrap{overflow-x:auto;margin:30px 0;border:1px solid var(--rule);border-radius:10px}
.art-table{width:100%;border-collapse:collapse;font-family:var(--font-sans);font-size:15px;color:var(--ink);min-width:520px}
.art-table caption{text-align:left}
.art-table thead th{background:var(--accent);color:#fff;text-align:left;font-weight:600;padding:13px 18px;letter-spacing:.01em}
.art-table tbody td,.art-table tbody th{text-align:left;font-weight:400;padding:13px 18px;border-top:1px solid var(--rule);vertical-align:top}
.art-table tbody tr:first-child td,.art-table tbody tr:first-child th{border-top:none}
.art-table tbody tr.is-source{background:color-mix(in srgb,var(--accent) 9%,var(--bg))}
.art-table tbody tr.is-source th,.art-table tbody tr.is-source td{font-weight:600;color:var(--accent)}
.art-cap-note{font-family:var(--font-sans);font-size:13px;color:var(--ink-faint);margin:10px 2px 0}