/* Blog / Insights — article + index styling. Reuses main.css tokens (--ink, --paper,
   --sans, --serif, --line). Content-first, no JS dependency; loaded only on /blog pages. */

body.blog { cursor: auto; background: var(--paper); color: var(--ink); }
body.blog a { cursor: pointer; }
body.blog ::selection { background: #2b5fd0; color: #fff; }

/* ---------- header: reuse the shared site nav (.nav from main.css), made static
   + dark on blog pages so the Insights header matches the homepage exactly ---------- */
body.blog .nav { position: sticky; top: 0; height: auto; z-index: 20; color: var(--ink);
  background: rgba(247,243,240,.85); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
body.blog .nav__inner { max-width: 1200px; padding: 15px var(--gut); }
body.blog .nav__links a[aria-current] { opacity: 1; }

/* ---------- article ---------- */
.article { max-width: 1200px; margin: 0 auto; padding: 0 var(--gut); }
.article__head { max-width: 760px; margin: 0 auto; padding: 72px 0 36px; }
.eyebrow { font-family: var(--sans); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: #2b5fd0; margin-bottom: 18px; }
.article__title { font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 5vw, 56px); line-height: 1.06; letter-spacing: -.02em; color: var(--ink); }
.article__meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 24px; font-size: 14px; color: var(--ink-40); font-family: var(--sans); }
.article__meta time, .article__meta span { white-space: nowrap; }

.prose { max-width: 760px; margin: 0 auto; padding-bottom: 40px; font-family: var(--sans); color: #20242c; font-size: 18px; line-height: 1.62; letter-spacing: -.1px; }
.prose > p, .prose > ul, .prose > ol, .prose > table, .prose > .callout, .prose > .faq, .prose > blockquote { margin: 0 0 22px; }
.prose h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(26px, 3.4vw, 34px); line-height: 1.15; letter-spacing: -.01em; color: var(--ink); margin: 48px 0 16px; }
.prose h3 { font-family: var(--sans); font-weight: 600; font-size: 21px; letter-spacing: -.2px; color: var(--ink); margin: 32px 0 12px; }
.prose .lead { font-size: 21px; line-height: 1.5; color: var(--ink); }
.prose a { color: #2b5fd0; text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
.prose a:hover { text-decoration-thickness: 2px; }
.prose strong { font-weight: 600; color: var(--ink); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 0 0 9px; }
.prose li::marker { color: var(--ink-40); }

/* key takeaways / summary box (GEO O02) */
.callout { border: 1px solid var(--line); border-left: 3px solid #2b5fd0; border-radius: 10px; background: rgba(43,95,208,.04); padding: 22px 24px; }
.callout h2, .callout h3 { margin: 0 0 12px; font-family: var(--sans); font-weight: 600; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; color: #2b5fd0; }
.callout ul { margin: 0; padding-left: 20px; }
.callout li { font-size: 16.5px; line-height: 1.5; margin-bottom: 8px; }
.callout li:last-child { margin-bottom: 0; }

/* quotable stat (GEO) */
.prose blockquote { border-left: 3px solid var(--ink); padding: 4px 0 4px 22px; font-family: var(--serif); font-size: 23px; line-height: 1.4; color: var(--ink); }
.prose blockquote cite { display: block; margin-top: 10px; font-family: var(--sans); font-style: normal; font-size: 13px; color: var(--ink-40); }

/* tables (GEO O03 — data in tables) */
.prose table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.prose th, .prose td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose thead th { font-family: var(--sans); font-weight: 600; font-size: 13px; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-60); border-bottom: 1.5px solid var(--ink); }
.prose tbody tr:hover { background: rgba(12,16,24,.025); }

/* FAQ (GEO C09) */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 0; font-family: var(--sans); font-weight: 600; font-size: 18px; color: var(--ink); display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-weight: 400; font-size: 24px; color: var(--ink-40); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding: 0 0 20px; font-size: 16.5px; line-height: 1.6; color: #20242c; }

/* author / cta strip after article */
.article__cta { max-width: 760px; margin: 24px auto 0; padding: 28px 0 64px; border-top: 1px solid var(--line); }
.article__cta p { font-family: var(--sans); color: var(--ink-60); font-size: 16px; margin: 0 0 16px; }
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--ink); color: #fff; font-family: var(--sans); font-size: 15px; padding: 13px 22px; border-radius: 100px; transition: transform .25s; }
.btn:hover { transform: translateY(-2px); }

/* related links */
.related { max-width: 760px; margin: 0 auto; padding: 8px 0 72px; }
.related h2 { font-family: var(--sans); font-weight: 600; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-40); margin: 0 0 16px; }
.related a { display: block; font-family: var(--serif); font-size: 22px; color: var(--ink); padding: 14px 0; border-top: 1px solid var(--line); transition: color .2s; }
.related a:hover { color: #2b5fd0; }

/* ---------- blog index ---------- */
.bhero { max-width: 1200px; margin: 0 auto; padding: 86px var(--gut) 40px; }
.bhero h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(40px, 6vw, 72px); line-height: 1.02; letter-spacing: -.02em; color: var(--ink); max-width: 14ch; }
.bhero p { font-family: var(--sans); font-size: 20px; color: var(--ink-60); max-width: 56ch; margin-top: 20px; line-height: 1.4; }
.bgrid { max-width: 1200px; margin: 0 auto; padding: 24px var(--gut) 96px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 32px; }
@media (max-width: 980px) { .bgrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .bgrid { grid-template-columns: 1fr; } }
.bcard { display: flex; flex-direction: column; border-top: 1.5px solid var(--ink); padding-top: 18px; }
.bcard .eyebrow { margin-bottom: 14px; }
.bcard h2 { font-family: var(--serif); font-weight: 400; font-size: 26px; line-height: 1.14; letter-spacing: -.01em; color: var(--ink); transition: color .2s; }
.bcard:hover h2 { color: #2b5fd0; }
.bcard p { font-family: var(--sans); font-size: 15.5px; line-height: 1.5; color: var(--ink-60); margin-top: 12px; }
.bcard__meta { margin-top: 16px; font-family: var(--sans); font-size: 13px; color: var(--ink-40); }
.bcard--feat { grid-column: 1 / -1; border-top-width: 2px; }
.bcard--feat h2 { font-size: clamp(30px, 4vw, 44px); max-width: 18ch; }
.bcard--feat p { font-size: 18px; max-width: 60ch; }

/* ---------- simple blog footer ---------- */
.bfooter { background: #07090f; color: #fff; margin-top: 40px; }
.bfooter__in { max-width: 1200px; margin: 0 auto; padding: 56px var(--gut) 40px; display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: center; }
.bfooter a { color: rgba(255,255,255,.82); }
.bfooter a:hover { color: #fff; }
.bfooter__logo { font-family: var(--logo); font-weight: 400; font-size: 26px; color: #fff; }
.bfooter__links { display: flex; gap: 24px; font-family: var(--sans); font-size: 15px; flex-wrap: wrap; }
.bfooter__legal { max-width: 1200px; margin: 0 auto; padding: 0 var(--gut) 36px; font-family: var(--sans); font-size: 13px; color: rgba(255,255,255,.5); }