/* =====================================================================
   Paynancial Insights (blog) — hub, category and article pages.
   Loaded after standalone.css; uses the site frame (.sp-wrap) and tokens.
   ===================================================================== */

/* ---- Hero (hub + category) ---- */
.blog-hero { background: var(--paper); border-bottom: 1px solid var(--border); padding-block: clamp(36px, 5vw, 64px) clamp(28px, 4vw, 44px); }
.blog-hero .bs-breadcrumb { margin-bottom: 22px; }
.blog-hero h1 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(2rem, 1.3rem + 2.6vw, 3.3rem); line-height: 1.08; letter-spacing: -0.015em; max-width: 20ch; color: var(--text); }
.blog-hero-lead { margin-top: 16px; max-width: 62ch; font-size: 1.06rem; line-height: 1.7; color: var(--text-muted); }

.blog-topics { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.blog-topics a { display: inline-flex; align-items: center; min-height: 36px; padding: 6px 14px; border: 1px solid var(--border); border-radius: 999px; font-size: 0.86rem; font-weight: 600; color: var(--text); background: #fff; transition: border-color 0.2s, background 0.2s, color 0.2s; }
.blog-topics a:hover { border-color: var(--teal-600); color: var(--teal-700); }
.blog-topics a[aria-current="page"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* ---- Category art (cards and topic tiles) ---- */
.blog-art--payments         { --art-a: #007771; --art-b: #0b3b36; }
.blog-art--business-finance { --art-a: #b83d00; --art-b: #4a1a05; }
.blog-art--fintech-ai       { --art-a: #1d5f8a; --art-b: #0d2436; }
.blog-art--developers       { --art-a: #23413c; --art-b: #0a1715; }
.blog-art--learning         { --art-a: #6b4d12; --art-b: #2a1f08; }
.blog-art--regulatory       { --art-a: #4b3f73; --art-b: #1b1630; }

/* ---- Cards ---- */
.blog-card { min-width: 0; }
.blog-card-link { display: flex; flex-direction: column; height: 100%; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: #fff; color: inherit; transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease; }
.blog-card-link:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(0, 119, 113, 0.35); }
.blog-card-link:focus-visible { outline: 2px solid var(--teal-600); outline-offset: 3px; }
.blog-card-art { position: relative; display: block; aspect-ratio: 16 / 8; background:
    radial-gradient(120% 90% at 100% 0%, rgba(255, 255, 255, 0.16) 0%, transparent 55%),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 14px),
    linear-gradient(135deg, var(--art-a), var(--art-b)); }
.blog-card-art span { position: absolute; left: 18px; bottom: 14px; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: #fff; text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25); }
.blog-card-body { display: flex; flex-direction: column; gap: 8px; padding: 20px 22px 22px; flex: 1; }
.blog-card-cat { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal-700); }
.blog-card-title { font-family: var(--font-serif); font-weight: 500; font-size: 1.28rem; line-height: 1.25; color: var(--text); }
.blog-card-dek { font-size: 0.93rem; line-height: 1.6; color: var(--text-muted); }
.blog-card-meta { margin-top: auto; padding-top: 10px; font-size: 0.8rem; color: var(--text-muted); }

.blog-card--lg .blog-card-art { aspect-ratio: 16 / 6; }
.blog-card--lg .blog-card-title { font-size: clamp(1.5rem, 1.1rem + 1.2vw, 2.1rem); }
.blog-card--lg .blog-card-dek { font-size: 1rem; }
.blog-card--lg .blog-card-body { padding: 26px 28px 28px; }

.blog-card--sm .blog-card-link { flex-direction: row; }
.blog-card--sm .blog-card-art { aspect-ratio: auto; width: 34%; min-height: 100%; flex-shrink: 0; }
.blog-card--sm .blog-card-art span { display: none; }
.blog-card--sm .blog-card-body { padding: 16px 18px; gap: 6px; }
.blog-card--sm .blog-card-title { font-size: 1.05rem; }
.blog-card--sm .blog-card-dek { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 0.86rem; }

.blog-lead { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 24px; }
.blog-lead-side { display: grid; gap: 16px; align-content: start; }
.blog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }

/* ---- Topic tiles ---- */
.blog-topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.blog-topic { position: relative; display: flex; flex-direction: column; gap: 8px; padding: 22px 22px 20px 26px; border: 1px solid var(--border); border-radius: 14px; background: #fff; color: inherit; overflow: hidden; transition: border-color 0.2s, transform 0.2s; }
.blog-topic::before { content: ''; position: absolute; inset: 0 auto 0 0; width: 5px; background: linear-gradient(180deg, var(--art-a), var(--art-b)); }
.blog-topic:hover { border-color: var(--art-a); transform: translateY(-2px); }
.blog-topic strong { font-family: var(--font-serif); font-weight: 500; font-size: 1.2rem; color: var(--text); }
.blog-topic span { font-size: 0.9rem; line-height: 1.6; color: var(--text-muted); }
.blog-topic em { margin-top: auto; padding-top: 6px; font-style: normal; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--teal-700); }

/* ---- Regulatory policy band ---- */
.blog-policy { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.blog-policy h2 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.5rem); line-height: 1.12; color: var(--paper); margin-bottom: 16px; }
.blog-policy-copy p + p { margin-top: 12px; }
.blog-policy-copy p { line-height: 1.75; }
.blog-policy-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.blog-policy-list div { padding: 20px; border: 1px solid var(--border-on-ink); border-radius: 14px; background: rgba(250, 249, 245, 0.04); }
.blog-policy-list dt { font-weight: 600; color: var(--paper); margin-bottom: 6px; }
.blog-policy-list dd { font-size: 0.92rem; line-height: 1.6; color: rgba(250, 249, 245, 0.74); }

/* ---- Article ---- */
/* Neutralise the site-wide section band (padding + divider) inside articles. */
.blog-body section { padding: 0; border-bottom: 0; }
.blog-toc ol, .blog-prose ol { list-style: none; margin: 0; padding: 0; }
.blog-prose dd, .blog-source dd, .blog-policy-list dd { margin: 0; }
.blog-hero, .blog-article-head { border-bottom: 1px solid var(--border); }
.blog-article-head { background: var(--paper); border-bottom: 1px solid var(--border); padding-block: clamp(32px, 4.5vw, 56px) clamp(28px, 4vw, 44px); }
.blog-article-head .bs-breadcrumb { margin-bottom: 22px; }
.blog-chip { display: inline-block; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal-700); border: 1px solid rgba(0, 119, 113, 0.3); border-radius: 999px; padding: 5px 12px; }
.blog-chip:hover { background: var(--teal-50); }
.blog-article-head h1 { margin-top: 16px; font-family: var(--font-serif); font-weight: 400; font-size: clamp(2rem, 1.3rem + 2.4vw, 3.15rem); line-height: 1.1; letter-spacing: -0.015em; max-width: 24ch; color: var(--text); }
.blog-dek { margin-top: 16px; max-width: 64ch; font-size: 1.12rem; line-height: 1.65; color: var(--text-muted); }
.blog-byline { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 22px; font-size: 0.86rem; color: var(--text-muted); }
.blog-byline span + span::before { content: '·'; margin-right: 18px; color: var(--border); }
.blog-byline span:first-child { color: var(--text); font-weight: 600; }

.blog-article-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); padding-block: clamp(36px, 5vw, 60px) clamp(48px, 6vw, 80px); align-items: start; }
.blog-toc { position: sticky; top: calc(var(--header-h, 72px) + 28px); }
.blog-toc-label { display: block; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; }
.blog-toc ol { display: grid; gap: 2px; border-left: 1px solid var(--border); counter-reset: toc; }
.blog-toc a { display: block; padding: 6px 0 6px 14px; margin-left: -1px; border-left: 2px solid transparent; font-size: 0.88rem; line-height: 1.45; color: var(--text-muted); }
.blog-toc a:hover { color: var(--teal-700); border-left-color: var(--teal-600); }

.blog-body { max-width: 760px; min-width: 0; }
.blog-body > * + * { margin-top: 40px; }
.blog-section, .blog-answer, .blog-source { scroll-margin-top: calc(var(--header-h, 72px) + 20px); }
.blog-section h2 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(1.5rem, 1.2rem + 0.9vw, 1.95rem); line-height: 1.2; color: var(--text); margin-bottom: 16px; }

.blog-prose { font-size: 1.04rem; line-height: 1.8; color: #3d4a4d; }
.blog-prose > * + * { margin-top: 16px; }
.blog-prose h3 { font-family: var(--font-sans); font-size: 1.1rem; font-weight: 650; color: var(--text); margin-top: 28px; }
.blog-prose strong { color: var(--text); font-weight: 600; }
.blog-prose a { color: var(--teal-700); text-decoration: underline; text-underline-offset: 3px; }
.blog-prose ul, .blog-prose ol { display: grid; gap: 10px; padding-left: 0; }
.blog-prose ul li { position: relative; padding-left: 24px; }
.blog-prose ul li::before { content: ''; position: absolute; left: 2px; top: 0.8em; width: 10px; height: 1px; background: var(--orange-500); }
.blog-prose ol { counter-reset: item; }
.blog-prose ol li { position: relative; padding-left: 36px; counter-increment: item; }
.blog-prose ol li::before { content: counter(item, decimal-leading-zero); position: absolute; left: 0; top: 0.1em; font-family: var(--font-mono); font-size: 0.8rem; color: #b83d00; }
.blog-prose code { font-family: var(--font-mono); font-size: 0.86em; background: var(--teal-50); color: var(--teal-900); padding: 1px 6px; border-radius: 4px; }
.blog-prose pre { background: var(--ink); color: #e6efed; border-radius: 12px; padding: 18px 20px; overflow-x: auto; font-size: 0.86rem; line-height: 1.65; }
.blog-prose pre code { background: none; color: inherit; padding: 0; }
.blog-prose table { width: 100%; border-collapse: collapse; font-size: 0.94rem; line-height: 1.55; }
.blog-prose .blog-table { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
.blog-prose th, .blog-prose td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.blog-prose thead th { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); background: var(--paper); }
.blog-prose tbody th { font-weight: 600; color: var(--text); }
.blog-prose tr:last-child > * { border-bottom: 0; }
.blog-prose dl { display: grid; gap: 12px; }
.blog-prose dl > dt + dd { margin-top: -8px; }
.blog-prose dt { font-weight: 650; color: var(--text); }
.blog-prose dd { margin-top: 2px; }

.blog-callout { border-left: 3px solid var(--teal-600); background: var(--teal-50); border-radius: 0 12px 12px 0; padding: 16px 20px; color: #284440; }
.blog-callout--warn { border-left-color: #b83d00; background: #fdf1ea; color: #4a2410; }
.blog-callout strong { display: block; margin-bottom: 4px; }

/* Quick answer (AEO) */
.blog-answer { border: 1px solid var(--border); border-radius: 18px; background: #fff; padding: clamp(22px, 3vw, 32px); box-shadow: var(--shadow-sm); }
.blog-answer-q { font-family: var(--font-serif); font-weight: 500; font-size: 1.3rem; line-height: 1.3; color: var(--text); }
.blog-answer-q::before { content: 'Quick answer'; display: block; font-family: var(--font-mono); font-size: 0.7rem; font-weight: 400; letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal-700); margin-bottom: 10px; }
.blog-answer > p { margin-top: 12px; font-size: 1.04rem; line-height: 1.75; color: #3d4a4d; }
.blog-takeaways { margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--border); }
.blog-takeaways > span { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); }
.blog-takeaways ul { display: grid; gap: 8px; margin-top: 10px; }
.blog-takeaways li { position: relative; padding-left: 26px; line-height: 1.6; color: var(--text); }
.blog-takeaways li::before { content: ''; position: absolute; left: 0; top: 0.45em; width: 14px; height: 8px; border-left: 2px solid var(--teal-600); border-bottom: 2px solid var(--teal-600); transform: rotate(-45deg); }

/* Regulatory source record */
.blog-source { border: 1px solid rgba(75, 63, 115, 0.35); border-radius: 18px; background: #f6f4fb; padding: clamp(22px, 3vw, 30px); }
.blog-source h2 { font-family: var(--font-mono); font-size: 0.74rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: #4b3f73; margin-bottom: 14px; }
.blog-source dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; }
.blog-source dt { font-size: 0.78rem; color: var(--text-muted); }
.blog-source dd { font-weight: 600; color: var(--text); overflow-wrap: anywhere; }
.blog-source a { color: var(--teal-700); text-decoration: underline; }
.blog-source-note { margin-top: 16px; font-size: 0.9rem; line-height: 1.6; color: var(--text-muted); }
.blog-official { border: 1px solid rgba(75, 63, 115, 0.35); border-radius: 12px; padding: 16px 20px; background: #fbfaff; }
.blog-official::before { content: 'Official requirement'; display: block; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: #4b3f73; margin-bottom: 6px; }

.blog-links { border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; background: var(--paper); }
.blog-links > span { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); }
.blog-links ul { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 10px; }
.blog-links a { font-weight: 600; color: var(--teal-700); }
.blog-links a:hover { text-decoration: underline; }
.blog-disclaimer { font-size: 0.86rem; line-height: 1.6; color: var(--text-muted); border-top: 1px solid var(--border); padding-top: 18px; }
.blog-disclaimer a { color: var(--teal-700); text-decoration: underline; }

/* ---- Responsive ---- */
@media (max-width: 1080px) {
  .blog-grid, .blog-topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .blog-lead { grid-template-columns: 1fr; }
  .blog-lead-side { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .blog-card--sm .blog-card-link { flex-direction: column; }
  .blog-card--sm .blog-card-art { width: 100%; min-height: 0; aspect-ratio: 16 / 7; }
  .blog-article-grid { grid-template-columns: 1fr; }
  .blog-toc { position: static; border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; background: #fff; }
  .blog-body { max-width: none; }
  .blog-policy { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .blog-grid, .blog-topic-grid, .blog-lead-side, .blog-policy-list, .blog-source dl { grid-template-columns: 1fr; }
  .blog-byline span + span::before { margin-right: 10px; }
  .blog-byline { gap: 6px 10px; }
  .blog-prose { font-size: 1rem; }
}