/* article-kit.css — Met (mettree.com) rich-component design system.
   Shared across the discoverability cluster: /vs, buyer's guide, /learn, glossary.
   Themed from Workflow/assets/met/brand.json — never invent these values.
   Palette: navy #0b2f4a ink, charcoal #1f2937 body, teal #1b7288 accent,
   gold #d4a93a (punctuation/status accent ONLY), paper #f9fafb, white surface. */

:root {
  --ak-bg: #f9fafb;
  --ak-surface: #ffffff;
  --ak-border: #d1d5db;
  --ak-ink: #0b2f4a;        /* navy — headlines */
  --ak-text: #1f2937;       /* charcoal — body */
  --ak-text-2: #4b5563;     /* secondary */
  --ak-accent: #1b7288;     /* teal */
  --ak-accent-dark: #0b2f4a;
  --ak-accent-soft: #e8f4f7;/* pale teal — callout cards only */
  --ak-accent-wash: rgba(27, 114, 136, 0.10);
  --ak-gold: #d4a93a;       /* status/punctuation accent only, never a fill */
  --ak-gold-ink: #9a7520;
  --ak-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --ak-body: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ak-shadow: 0 12px 40px rgba(11, 47, 74, 0.10);
  --ak-shadow-sm: 0 6px 18px rgba(11, 47, 74, 0.08);
  --ak-radius: 18px;
  --ak-radius-lg: 22px;
  --ak-wrap: 1080px;
  --ak-prose: 760px;
}

* { box-sizing: border-box; }
.ak-body { margin: 0; background: var(--ak-bg); color: var(--ak-text); font-family: var(--ak-body); -webkit-font-smoothing: antialiased; line-height: 1.6; }
.ak-body a { color: var(--ak-accent); text-decoration: none; }
.ak-body a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
.ak-wrap { width: min(var(--ak-wrap), calc(100% - 40px)); margin: 0 auto; }

/* Header / footer */
.ak-header { position: sticky; top: 0; z-index: 30; background: rgba(249, 250, 251, 0.92); backdrop-filter: blur(18px); border-bottom: 1px solid var(--ak-border); }
.ak-nav { width: min(var(--ak-wrap), calc(100% - 40px)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
.ak-brand { display: inline-flex; align-items: center; }
.ak-brand img { height: 40px; width: auto; }
.ak-btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 11px 20px; font-family: var(--ak-body); font-weight: 600; font-size: 0.95rem; cursor: pointer; border: 1px solid transparent; transition: transform .15s ease, background .15s ease; }
.ak-btn:hover { transform: translateY(-1px); text-decoration: none; }
.ak-btn--primary { background: var(--ak-accent); color: #fff; box-shadow: 0 10px 22px rgba(27,114,136,.22); }
.ak-btn--primary:hover { background: var(--ak-accent-dark); }
.ak-btn--ghost { background: var(--ak-surface); color: var(--ak-ink); border-color: var(--ak-border); }

/* Hero */
.ak-hero { padding: 60px 0 18px; }
.ak-kicker { margin: 0 0 14px; color: var(--ak-accent); font-weight: 700; font-size: 0.82rem; letter-spacing: 0.14em; text-transform: uppercase; }
.ak-h1 { margin: 0 0 18px; font-family: var(--ak-display); font-weight: 700; font-size: clamp(2rem, 4.4vw, 3rem); line-height: 1.12; letter-spacing: -0.01em; color: var(--ak-ink); }
.ak-hero__dek { margin: 0; max-width: var(--ak-prose); font-size: 1.12rem; line-height: 1.55; color: var(--ak-text-2); }

/* Sections */
.ak-section { padding: 30px 0; }
.ak-section--alt { background: var(--ak-accent-wash); padding: 48px 0; }
.ak-h2 { font-family: var(--ak-display); font-weight: 700; font-size: clamp(1.5rem, 3vw, 1.9rem); line-height: 1.2; color: var(--ak-ink); margin: 8px 0 18px; }
.ak-h3 { font-family: var(--ak-display); font-weight: 700; font-size: 1.25rem; color: var(--ak-ink); margin: 0 0 10px; }
.ak-prose { max-width: var(--ak-prose); }
.ak-prose p { font-size: 1.05rem; line-height: 1.7; color: var(--ak-text); margin: 0 0 16px; }
.ak-prose strong { color: var(--ak-ink); }
.ak-prose ul, .ak-prose ol { padding-left: 22px; }
.ak-prose li { font-size: 1.05rem; line-height: 1.7; margin: 0 0 10px; }

/* Panel */
.ak-panel { background: var(--ak-surface); border: 1px solid var(--ak-border); border-radius: var(--ak-radius); padding: 28px 30px; box-shadow: var(--ak-shadow); }
.ak-panel + .ak-panel { margin-top: 18px; }

/* RichBlock: comparison / scorecard table */
.ak-table-wrap { overflow-x: auto; border: 1px solid var(--ak-border); border-radius: var(--ak-radius); box-shadow: var(--ak-shadow-sm); background: var(--ak-surface); }
.ak-table { width: 100%; border-collapse: collapse; font-size: 0.98rem; min-width: 560px; }
.ak-table caption { text-align: left; padding: 16px 18px 0; color: var(--ak-text-2); font-size: 0.9rem; }
.ak-table th, .ak-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--ak-border); vertical-align: top; }
.ak-table thead th { background: var(--ak-ink); color: #fff; font-family: var(--ak-body); font-weight: 700; font-size: 0.86rem; letter-spacing: 0.02em; }
.ak-table thead th:first-child { border-top-left-radius: 0; }
.ak-table tbody th { font-weight: 700; color: var(--ak-ink); background: rgba(27,114,136,.05); white-space: nowrap; }
.ak-table tbody tr:last-child td, .ak-table tbody tr:last-child th { border-bottom: none; }
.ak-table .ak-col-met { background: var(--ak-accent-soft); }
.ak-table thead .ak-col-met { background: var(--ak-accent); }
.ak-yes { color: var(--ak-accent); font-weight: 700; }
.ak-no { color: #b04a3a; font-weight: 700; }
.ak-meh { color: var(--ak-gold-ink); font-weight: 700; }

/* RichBlock: stats row */
.ak-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin: 4px 0; }
.ak-stat { background: var(--ak-surface); border: 1px solid var(--ak-border); border-radius: var(--ak-radius); padding: 22px; box-shadow: var(--ak-shadow-sm); }
.ak-stat__num { font-family: var(--ak-display); font-weight: 700; font-size: 2.1rem; line-height: 1; color: var(--ak-accent); }
.ak-stat__num small { font-size: 1rem; color: var(--ak-gold-ink); }
.ak-stat__label { margin-top: 8px; font-size: 0.92rem; color: var(--ak-text-2); line-height: 1.4; }

/* RichBlock: horizontal bar chart (CSS, deterministic, no JS) */
.ak-chart { background: var(--ak-surface); border: 1px solid var(--ak-border); border-radius: var(--ak-radius); padding: 24px 26px; box-shadow: var(--ak-shadow-sm); }
.ak-chart__title { font-family: var(--ak-display); font-weight: 700; color: var(--ak-ink); margin: 0 0 4px; font-size: 1.1rem; }
.ak-chart__note { color: var(--ak-text-2); font-size: 0.86rem; margin: 0 0 18px; }
.ak-bar { display: grid; grid-template-columns: 130px 1fr 44px; align-items: center; gap: 12px; margin: 0 0 12px; }
.ak-bar__label { font-size: 0.9rem; color: var(--ak-text); font-weight: 600; }
.ak-bar__track { background: rgba(11,47,74,.07); border-radius: 999px; height: 22px; overflow: hidden; }
.ak-bar__fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, #1b7288, #2a93ad); }
.ak-bar--met .ak-bar__fill { background: linear-gradient(90deg, #0b2f4a, #1b7288); }
.ak-bar__val { font-weight: 700; color: var(--ak-ink); font-size: 0.9rem; text-align: right; }

/* RichBlock: callout (pale teal only) + pullquote */
.ak-callout { background: var(--ak-accent-soft); border: 1px solid rgba(27,114,136,.25); border-left: 4px solid var(--ak-accent); border-radius: 14px; padding: 20px 24px; }
.ak-callout p { margin: 0; color: var(--ak-text); }
.ak-callout__tag { display: block; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ak-accent); margin-bottom: 6px; }
.ak-pullquote { font-family: var(--ak-display); font-size: 1.5rem; line-height: 1.35; color: var(--ak-ink); border-left: 3px solid var(--ak-gold); padding-left: 22px; margin: 8px 0; }

/* picks (link cards) */
.ak-picks { display: grid; gap: 14px; }
.ak-pick { background: var(--ak-surface); border: 1px solid var(--ak-border); border-radius: 14px; padding: 18px 20px; box-shadow: var(--ak-shadow-sm); }
.ak-pick__tag { display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ak-accent); background: var(--ak-accent-soft); padding: 4px 10px; border-radius: 999px; margin-bottom: 8px; }
.ak-pick p { margin: 0; color: var(--ak-text-2); font-size: 0.98rem; line-height: 1.55; }
.ak-pick strong a { color: var(--ak-ink); }

/* TOC */
.ak-toc { background: var(--ak-surface); border: 1px solid var(--ak-border); border-radius: var(--ak-radius); padding: 18px 24px; box-shadow: var(--ak-shadow-sm); margin-bottom: 26px; }
.ak-toc h2 { font-family: var(--ak-body); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ak-text-2); margin: 0 0 10px; }
.ak-toc ol { margin: 0; padding-left: 20px; columns: 2; }
.ak-toc li { margin: 0 0 6px; font-size: 0.96rem; }

/* CTA */
.ak-cta { margin: 22px 0; padding: 30px 32px; border-radius: var(--ak-radius-lg); background: linear-gradient(135deg, #0b2f4a 0%, #1b7288 100%); color: #fff; box-shadow: var(--ak-shadow); }
.ak-cta__h { font-family: var(--ak-display); font-weight: 700; font-size: 1.5rem; margin: 0 0 10px; color: #fff; }
.ak-cta p { margin: 0 0 18px; color: rgba(255,255,255,.88); font-size: 1.02rem; line-height: 1.55; }
.ak-cta a { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--ak-ink); font-weight: 700; padding: 12px 22px; border-radius: 999px; }
.ak-cta a:hover { text-decoration: none; background: var(--ak-accent-soft); }

/* FAQ */
.ak-faq { border-top: 1px solid var(--ak-border); }
.ak-faq details { border-bottom: 1px solid var(--ak-border); }
.ak-faq summary { cursor: pointer; list-style: none; padding: 16px 0; font-weight: 700; font-size: 1.06rem; color: var(--ak-ink); position: relative; padding-right: 30px; }
.ak-faq summary::-webkit-details-marker { display: none; }
.ak-faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--ak-accent); font-weight: 400; font-size: 1.4rem; line-height: 1; }
.ak-faq details[open] summary::after { content: "\2212"; }
.ak-faq .ak-faq__a { padding: 0 0 16px; }
.ak-faq .ak-faq__a p { margin: 0; color: var(--ak-text); line-height: 1.65; }

/* small print / disclaimer */
.ak-note { font-size: 0.9rem; color: var(--ak-text-2); }
.ak-footer { background: #11202f; color: #c7d2dc; padding: 40px 0 28px; margin-top: 40px; }
.ak-footer__grid { width: min(var(--ak-wrap), calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.ak-footer img { height: 34px; margin-bottom: 10px; }
.ak-footer h3 { font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: #8aa0b2; margin: 0 0 12px; }
.ak-footer ul { list-style: none; padding: 0; margin: 0; }
.ak-footer li { margin: 0 0 8px; }
.ak-footer a { color: #c7d2dc; font-size: 0.95rem; }
.ak-footer__copy { font-size: 0.92rem; color: #8aa0b2; }
.ak-disclaimer { width: min(var(--ak-wrap), calc(100% - 40px)); margin: 26px auto 0; font-size: 0.82rem; color: #6f8597; line-height: 1.5; }

@media (max-width: 720px) {
  .ak-toc ol { columns: 1; }
  .ak-footer__grid { grid-template-columns: 1fr; }
  .ak-bar { grid-template-columns: 100px 1fr 38px; }
}