/* Blog pages only (Brief BI, redesign v2). Loaded after the site CSS copied into each page's <style>.
   Uses the home-page :root tokens; values with no site token are --blog- locals on .blog.
   Drop-in: no markup, template or build-blog.mjs changes. No JS. Hover transitions only, off under reduced motion. */

.blog{
  --blog-measure:68ch;
  --blog-wide:1120px;
  --blog-radius:28px;
  --blog-radius-sm:16px;
  --blog-gutter:28px;
  --blog-ink:#2F1C5E;          /* brand ink navy */
  --blog-tint:#E4E1FA;         /* brand accent tint */
  --blog-shadow:0 1px 2px rgba(47,28,94,.04),0 8px 24px -12px rgba(47,28,94,.18);
  --blog-shadow-hover:0 2px 4px rgba(47,28,94,.05),0 18px 40px -16px rgba(47,28,94,.30);
  /* kit glyphs, used as masks so they take any colour */
  --g-tri:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 56 56'%3E%3Cpath d='M28 9L49 46H7Z' fill='none' stroke='%23000' stroke-width='4' stroke-linejoin='round'/%3E%3C/svg%3E");
  --g-dia:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 56 56'%3E%3Cpath d='M28 6L50 28L28 50L6 28Z' fill='none' stroke='%23000' stroke-width='4' stroke-linejoin='round'/%3E%3C/svg%3E");
  --g-cir:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 56 56'%3E%3Ccircle cx='28' cy='28' r='19' fill='none' stroke='%23000' stroke-width='4'/%3E%3C/svg%3E");
  --g-sq:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 56 56'%3E%3Crect x='10' y='10' width='36' height='36' rx='6' fill='none' stroke='%23000' stroke-width='4'/%3E%3C/svg%3E");
  padding:72px 0 112px;
}
.blog-col{max-width:calc(var(--blog-measure) + 2 * var(--blog-gutter));margin:0 auto;padding:0 var(--blog-gutter)}
/* the index gets the wide grid; post pages keep the reading measure */
.blog-col:has(.post-list){max-width:calc(var(--blog-wide) + 2 * var(--blog-gutter))}
.blog .eyebrow a{color:var(--accent-text)}

/* headings — Montserrat, on the home-page scale */
.blog h1{font-family:var(--font);font-weight:700;font-size:clamp(32px,5vw,48px);line-height:1.08;letter-spacing:-.025em;color:var(--text);margin-top:14px;text-wrap:balance}
.blog h2{font-family:var(--font);font-weight:700;font-size:clamp(24px,3vw,30px);line-height:1.2;letter-spacing:-.02em;color:var(--text);text-wrap:balance}
.blog h3{font-family:var(--font);font-weight:600;font-size:20px;line-height:1.3;letter-spacing:-.01em;color:var(--text)}

/* ───────────── index ───────────── */

/* masthead */
.blog-head{position:relative;margin-bottom:48px;padding:8px 0 8px}
.blog-head .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px 6px 10px;border-radius:999px;background:var(--blog-tint);color:var(--accent-text);letter-spacing:.16em}
.blog-head .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.blog-head h1{font-size:clamp(40px,7.2vw,80px);line-height:1;letter-spacing:-.04em;margin-top:22px;max-width:12ch}
.blog-lead{margin-top:22px;font-size:clamp(17px,1.6vw,19px);line-height:1.6;color:var(--text-2);max-width:54ch}
/* decorative kit glyphs on wide screens */
.blog-head::before,.blog-head::after{content:"";position:absolute;pointer-events:none;background:var(--accent);opacity:.16;-webkit-mask:var(--g-tri) center/contain no-repeat;mask:var(--g-tri) center/contain no-repeat}
.blog-head::before{width:150px;height:150px;right:150px;top:-10px;transform:rotate(-8deg)}
.blog-head::after{width:96px;height:96px;right:24px;top:120px;-webkit-mask-image:var(--g-cir);mask-image:var(--g-cir);opacity:.22}

/* card grid */
.post-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.post-card{position:relative;display:flex;flex-direction:column;background:var(--bg-raised);border:1px solid var(--line);border-radius:var(--blog-radius);padding:28px 28px 26px;box-shadow:var(--blog-shadow);transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease),border-color var(--t-fast) var(--ease)}
.post-card:hover{border-color:rgba(127,119,221,.55);box-shadow:var(--blog-shadow-hover);transform:translateY(-3px)}
.post-card:focus-within{border-color:var(--accent)}
/* glyph tile, cycling through the kit shapes */
.post-card::before{content:"";order:-2;width:52px;height:52px;flex:0 0 auto;border-radius:16px;margin-bottom:22px;
  background:var(--accent) ;-webkit-mask:var(--g-tri) center/26px no-repeat,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:var(--g-tri) center/26px no-repeat exclude,linear-gradient(#000 0 0)}
.post-card:nth-child(4n+2)::before{background:var(--accent)}
.post-card:nth-child(4n+3)::before{-webkit-mask-image:var(--g-dia),linear-gradient(#000 0 0);mask-image:var(--g-dia),linear-gradient(#000 0 0);background:var(--blog-ink)}
.post-card:nth-child(4n+4)::before{-webkit-mask-image:var(--g-cir),linear-gradient(#000 0 0);mask-image:var(--g-cir),linear-gradient(#000 0 0);background:#9A93E6}
.post-card:nth-child(4n+5)::before{-webkit-mask-image:var(--g-sq),linear-gradient(#000 0 0);mask-image:var(--g-sq),linear-gradient(#000 0 0);background:var(--accent-text)}
.card-meta{order:-1;margin-bottom:10px;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--muted);font-variant-numeric:tabular-nums}
.card-title{font-size:clamp(20px,2.1vw,23px);line-height:1.25;letter-spacing:-.02em}
.card-title a{color:var(--text)}
/* whole card is the link; tags stay clickable above it */
.card-title a::after{content:"";position:absolute;inset:0;border-radius:inherit;z-index:0}
.card-title a:focus-visible{outline:none}
.card-title a:focus-visible::after{outline:2px solid var(--accent-text);outline-offset:3px}
.card-desc{margin-top:12px;font-size:15.5px;line-height:1.6;color:var(--text-2)}
.post-card .post-tags{position:relative;z-index:1;margin-top:auto;padding-top:22px}

/* featured: the newest post spans the grid in brand ink */
.post-list>.post-card:first-child{grid-column:1/-1;min-height:340px;padding:44px 48px 40px;border:0;overflow:hidden;color:#F4F3F8;
  background:
    radial-gradient(560px 420px at 92% 18%,rgba(127,119,221,.55),rgba(127,119,221,0) 70%),
    radial-gradient(420px 320px at 8% 110%,rgba(127,119,221,.28),rgba(127,119,221,0) 70%),
    var(--blog-ink);
  box-shadow:0 30px 60px -30px rgba(47,28,94,.55)}
.post-list>.post-card:first-child:hover{transform:translateY(-3px);box-shadow:0 40px 70px -30px rgba(47,28,94,.65)}
.post-list>.post-card:first-child::before{content:"Latest";order:-2;width:auto;height:auto;align-self:flex-start;margin-bottom:26px;padding:7px 14px;border-radius:999px;-webkit-mask:none;mask:none;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#fff}
.post-list>.post-card:first-child::after{content:"";position:absolute;right:-30px;bottom:-40px;width:300px;height:300px;pointer-events:none;background:#fff;opacity:.08;-webkit-mask:var(--g-tri) center/contain no-repeat;mask:var(--g-tri) center/contain no-repeat;transform:rotate(12deg)}
.post-list>.post-card:first-child .card-title{font-size:clamp(28px,4.2vw,46px);line-height:1.08;letter-spacing:-.035em;max-width:18ch}
.post-list>.post-card:first-child .card-title a{color:#fff}
.post-list>.post-card:first-child .card-meta{color:rgba(244,243,248,.72)}
.post-list>.post-card:first-child .card-desc{max-width:58ch;font-size:17px;color:rgba(244,243,248,.84)}
.post-list>.post-card:first-child .post-tag{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.06)}
.post-list>.post-card:first-child .post-tag:hover{background:#fff;color:var(--blog-ink);border-color:#fff}

/* topics */
.blog-topics{margin-top:88px;padding-top:0;border-top:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;align-items:stretch}
.blog-topics>h2{grid-column:1/-1;margin-bottom:10px}
.blog-topic{margin-top:0;padding:20px 22px;background:transparent;border:1px solid var(--line);border-radius:var(--blog-radius-sm);scroll-margin-top:100px;transition:border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease)}
.blog-topic:hover{border-color:rgba(127,119,221,.5);background:rgba(255,255,255,.55)}
.blog-topic h3{font-size:15px;font-weight:700;letter-spacing:0;text-transform:capitalize}
.blog-topic h3::before{content:"#";margin-right:4px;color:var(--accent)}
.blog-topic ul{list-style:none;margin-top:10px;display:grid;gap:8px}
.blog-topic a{display:block;font-size:14px;line-height:1.45;color:var(--text-2);text-decoration:none}
.blog-topic a:hover{color:var(--accent-text)}
.blog-topic:target{border-color:var(--accent);background:var(--blog-tint)}
.blog-topic:target h3{color:var(--accent-text)}

/* ───────────── shared: tags ───────────── */
.post-meta,.card-meta,.related-card__meta{font-size:14px;color:var(--muted)}
.card-meta{font-size:13px}
.post-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.post-tag{display:inline-block;font-size:12.5px;font-weight:600;line-height:1.3;color:var(--accent-text);background:rgba(127,119,221,.09);border:1px solid transparent;border-radius:999px;padding:6px 12px;transition:background-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.post-tag:hover{background:var(--accent);color:#fff}

/* ───────────── post pages ───────────── */
.post-head{padding-bottom:32px;border-bottom:1px solid var(--divider);margin-bottom:40px}
.post-meta{margin-top:18px;font-variant-numeric:tabular-nums}

/* reading column */
.post-body{font-size:1.0625rem;line-height:1.7;color:var(--text-2);overflow-wrap:break-word}
.post-body>*+*{margin-top:1.25em}
.post-body h2{margin-top:2.1em;scroll-margin-top:90px}
.post-body h3{margin-top:1.75em;scroll-margin-top:90px}
.post-body h2+*,.post-body h3+*{margin-top:.6em}
.post-body ul,.post-body ol{padding-left:1.3em}
.post-body li+li{margin-top:.6em}
.post-body li::marker{color:var(--accent-text)}
.post-body strong{color:var(--text);font-weight:600}
.post-body a{color:var(--accent-text);text-decoration:underline;text-decoration-color:rgba(90,81,201,.35);text-underline-offset:3px;text-decoration-thickness:1.5px}
.post-body a:hover{text-decoration-color:currentColor}
.post-body blockquote{border-left:0;padding:20px 24px;border-radius:var(--blog-radius-sm);background:var(--blog-tint);color:var(--blog-ink);font-weight:500}

/* "Keep reading" */
.post-related{margin-top:72px;padding-top:40px;border-top:1px solid var(--divider)}
.post-related ul{list-style:none;display:grid;gap:12px;margin-top:20px}
.related-card{position:relative;display:flex;flex-direction:column;gap:6px;background:var(--bg-raised);border:1px solid var(--line);border-radius:var(--blog-radius-sm);padding:18px 52px 18px 20px;box-shadow:var(--blog-shadow);transition:border-color var(--t-fast) var(--ease),transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease)}
.related-card::after{content:"→";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-weight:600;color:var(--accent-text);transition:transform var(--t-fast) var(--ease)}
.related-card:hover{border-color:rgba(127,119,221,.55);box-shadow:var(--blog-shadow-hover);transform:translateY(-2px)}
.related-card:hover::after{transform:translate(3px,-50%)}
.related-card__title{font-weight:600;font-size:16px;line-height:1.35;color:var(--text)}

/* CTA — elevated card with a soft accent glow */
.post-cta{position:relative;overflow:hidden;margin-top:56px;background:radial-gradient(420px 260px at 50% -10%,rgba(127,119,221,.18),rgba(127,119,221,0) 70%),var(--bg-raised);border:1px solid var(--line);border-radius:var(--blog-radius);padding:44px 28px;text-align:center;box-shadow:var(--blog-shadow)}
.post-cta__kicker{font-size:12px;letter-spacing:.2em;text-transform:uppercase;font-weight:700;color:var(--accent-text)}
.post-cta h2{margin-top:10px}
.post-cta p:not(.post-cta__kicker){margin:14px auto 0;max-width:46ch;font-size:16px;line-height:1.6;color:var(--text-2)}
.post-cta__badges{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:12px;justify-content:center;margin-top:28px}
.post-cta__badges .btn{min-width:220px}

/* ───────────── responsive ───────────── */
@media(max-width:900px){
  .blog-head::before,.blog-head::after{display:none}
}
@media(max-width:760px){
  .post-list{grid-template-columns:minmax(0,1fr)}
  .post-list>.post-card:first-child{min-height:0;padding:32px 26px 28px}
  .post-list>.post-card:first-child::after{width:200px;height:200px}
}
@media(max-width:620px){
  .post-cta__badges{grid-auto-flow:row;grid-auto-columns:auto}
  .post-cta__badges .btn{min-width:0;width:100%}
}
@media(max-width:560px){
  .blog{--blog-gutter:16px;padding:44px 0 80px}
  .blog-head{margin-bottom:32px}
  .post-card{padding:22px 20px;border-radius:22px}
  .post-list>.post-card:first-child{padding:28px 22px 24px;border-radius:24px}
  .post-cta{padding:32px 20px}
  .blog-topics{margin-top:64px}
}
@media(prefers-reduced-motion:reduce){
  .post-card,.related-card,.related-card::after,.post-tag,.blog-topic{transition:none}
  .post-card:hover,.post-list>.post-card:first-child:hover,.related-card:hover{transform:none}
}