/* ============================================================
 * NGS Academy — article page (page-academy-article.php)
 * Scoped under .academy-article so it never collides with other
 * pages. Site header/footer come from the theme chrome; this file
 * styles only the article body, TOC rail, components and CTA.
 * Source of truth for the component markup: academy.php (ngs_acad_*).
 * ============================================================ */

.academy-article {
  /* Tokens the article components rely on (superset of site-chrome). */
  --bg-2:#E4E8ED; --bg-3:#DCE1E7; --paper:#F7F8FA;
  --ink-3:#38445A; --muted-2:#8A94A6;
  --line-2:#D9DEE6; --line-soft:rgba(11,18,32,0.08);
  --blue-deep:#1E4E7E; --blue-soft:#DCE7F2;
  --gold-soft:#EFE3C5; --gold-deep:#8C6620;
  --display:"Playfair Display","Newsreader",Georgia,serif;
  --radius-lg:10px;
  --maxw:1200px; --gutter:clamp(20px,4vw,56px);
  color: var(--ink, #0B1220);
  font-family: var(--sans, "Inter", system-ui, sans-serif);
}
.academy-article .container { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.academy-article h1, .academy-article h2, .academy-article h3, .academy-article h4 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; color: var(--ink); margin: 0; }
.academy-article p { margin: 0; color: var(--ink-2); }
.academy-article .eyebrow { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.academy-article .tag { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 9px; border: 1px solid var(--line); border-radius: 3px; color: var(--ink-3); background: var(--paper); }
.academy-article .tag.pt { color: var(--gold-deep); border-color: var(--gold-soft); background: #FBF6EA; }
.academy-article .tag.dr { color: var(--blue-deep); border-color: var(--blue-soft); background: #EEF4FA; }

/* ===== breadcrumb + header ===== */
.academy-article .art-breadcrumb { padding: clamp(28px,3.5vw,44px) 0 0; }
.academy-article .art-breadcrumb a { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); transition: gap .18s, color .15s; }
.academy-article .art-breadcrumb a:hover { gap: 12px; color: var(--ink); }

.academy-article .art-head { padding: clamp(26px,3vw,40px) 0 clamp(28px,3vw,40px); }
.academy-article .art-head .head-grid { max-width: none; }
/* keep the headline at a comfortable measure even though the byline rule now
   spans the full content width (so it lines up with the section rule below). */
.academy-article .art-head h1, .academy-article .art-head .standfirst { max-width: 920px; }
.academy-article .art-head .kicker { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; flex-wrap: wrap; }
.academy-article .art-head .kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px var(--gold-soft); }
.academy-article .art-head .depth { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.academy-article .art-head .depth .dots { display: inline-flex; gap: 3px; }
.academy-article .art-head .depth .d { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
.academy-article .art-head .depth .d.off { background: #cdd3d0; }
.academy-article .art-head h1 { font-size: clamp(36px,4.6vw,64px); line-height: 1.04; letter-spacing: -0.025em; margin-bottom: 0; }
.academy-article .art-head h1 em { font-style: italic; font-family: var(--display); color: var(--blue-deep); }
.academy-article .art-head .standfirst { font-family: var(--serif); font-size: clamp(19px,1.7vw,24px); line-height: 1.5; color: var(--ink-2); max-width: 680px; margin-top: 26px; }
.academy-article .art-head .byline-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; margin-top: 36px; padding-top: 26px; border-top: 1px solid var(--ink); }
.academy-article .byline { display: flex; align-items: center; gap: 13px; }
.academy-article .byline .ava { width: 46px; height: 46px; border-radius: 50%; background: var(--bg-2); border: 1px solid var(--line); position: relative; flex-shrink: 0; overflow: hidden; }
.academy-article .byline .ava::after { content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); width: 62%; height: 62%; border-radius: 50% 50% 0 0; background: var(--muted-2); opacity: .5; }
.academy-article .byline .who { display: flex; flex-direction: column; line-height: 1.35; }
.academy-article .byline .who .n { font-size: 15px; color: var(--ink); font-weight: 500; }
.academy-article .byline .who .r { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.academy-article .byline-meta { display: flex; gap: 24px; margin-left: auto; flex-wrap: wrap; }
.academy-article .byline-meta .m { display: flex; flex-direction: column; gap: 3px; }
.academy-article .byline-meta .m .lab { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted-2); }
.academy-article .byline-meta .m .val { font-size: 13.5px; color: var(--ink); font-weight: 500; }
@media (max-width: 620px) { .academy-article .byline-meta { margin-left: 0; width: 100%; gap: 28px; } }

/* overture */
.academy-article .art-overture { margin: clamp(10px,2vw,22px) 0 0; padding: clamp(34px,4.2vw,56px) 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line-soft); }
.academy-article .art-overture .lbl { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-deep); margin-bottom: 18px; }
.academy-article .art-overture .stmt { font-family: var(--serif); font-size: clamp(26px,3.4vw,46px); line-height: 1.16; letter-spacing: -0.02em; color: var(--ink); max-width: 900px; text-wrap: balance; }
.academy-article .art-overture .stmt em { font-style: italic; font-family: var(--display); color: var(--blue-deep); }

/* layout: toc rail + article */
.academy-article .bm-layout { display: grid; grid-template-columns: 264px minmax(0,1fr); gap: clamp(40px,5vw,72px); padding: clamp(40px,5vw,64px) 0 clamp(56px,7vw,96px); align-items: start; }
@media (max-width: 980px) { .academy-article .bm-layout { grid-template-columns: 1fr; gap: 28px; } }

.academy-article .bm-rail { position: sticky; top: 118px; }
.academy-article .bm-rail .rail-label { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); padding-bottom: 14px; margin-bottom: 6px; border-bottom: 1px solid var(--line); }
.academy-article .bm-rail ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; position: relative; }
.academy-article .toc-marker { position: absolute; left: -16px; top: 0; width: 2px; height: 0; background: var(--gold); border-radius: 2px; opacity: 0; transform: translateY(0); transition: transform .44s cubic-bezier(.6,.05,.1,1), height .44s cubic-bezier(.6,.05,.1,1), opacity .3s ease; pointer-events: none; will-change: transform, height; }
.academy-article .toc-marker::after { content: ""; position: absolute; left: 0; top: 50%; transform: translate(-50%,-50%); width: 6px; height: 6px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px var(--gold-soft); }
.academy-article .toc-marker.ready { opacity: 1; }
.academy-article .bm-gene { width: 100%; display: grid; grid-template-columns: auto 1fr; gap: 4px 13px; align-items: baseline; text-align: left; background: transparent; border: 0; border-left: 2px solid transparent; padding: 13px 14px 13px 16px; margin-left: -16px; cursor: pointer; transition: background .38s cubic-bezier(.4,0,.2,1); }
.academy-article .bm-gene .g-ix { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.04em; color: var(--muted-2); grid-row: 1; }
.academy-article .bm-gene .g-name { font-family: var(--serif); font-size: 18px; line-height: 1.15; color: var(--ink-3); letter-spacing: -0.01em; transition: color .3s ease, transform .38s cubic-bezier(.6,.05,.1,1); grid-row: 1; }
.academy-article .bm-gene .g-desc { grid-column: 2; font-size: 11.5px; line-height: 1.4; color: var(--muted); margin-top: 2px; display: none; }
.academy-article .bm-gene:hover .g-name { color: var(--ink); }
.academy-article .bm-gene.is-on { background: linear-gradient(90deg, rgba(184,134,47,0.07), transparent 80%); }
.academy-article .bm-gene.is-on .g-name { color: var(--ink); font-weight: 500; transform: translateX(2px); }
.academy-article .bm-gene.is-on .g-ix { color: var(--gold-deep); }
.academy-article .bm-gene.is-on .g-desc { display: block; }
.academy-article .bm-rail .rail-foot { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line-soft); font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted-2); line-height: 1.7; }
@media (max-width: 980px) {
  .academy-article .bm-rail { position: static; top: auto; }
  .academy-article .bm-rail .rail-label { display: none; }
  .academy-article .bm-rail ol { flex-direction: row; gap: 8px; overflow-x: auto; padding-bottom: 6px; -webkit-overflow-scrolling: touch; scrollbar-width: thin; }
  .academy-article .bm-gene { margin-left: 0; border-left: 0; border: 1px solid var(--line); border-radius: 999px; padding: 10px 16px; background: var(--paper); grid-template-columns: auto; white-space: nowrap; flex: 0 0 auto; }
  .academy-article .bm-gene .g-ix, .academy-article .bm-gene .g-desc { display: none; }
  .academy-article .bm-gene .g-name { font-size: 15px; }
  .academy-article .bm-gene.is-on { background: var(--ink); border-color: var(--ink); }
  .academy-article .bm-gene.is-on .g-name { color: var(--paper); transform: none; }
  .academy-article .toc-marker { display: none; }
  .academy-article .bm-rail .rail-foot { display: none; }
}

/* article panel */
.academy-article .bm-panel { max-width: 740px; }
.academy-article .bm-tagrow { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.academy-article .bm-chip { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--blue-deep); background: #EEF4FA; border: 1px solid var(--blue-soft); border-radius: 3px; padding: 5px 11px; }
.academy-article .bm-lead { font-family: var(--serif); font-size: 19px; line-height: 1.62; color: var(--ink-2); margin-top: 26px; }
.academy-article .bm-lead strong { color: var(--ink); font-weight: 600; }
.academy-article .bm-lead::first-letter { font-family: var(--display); float: left; font-size: 4.4em; line-height: .78; font-weight: 400; color: var(--blue-deep); padding: 6px 14px 0 0; }
.academy-article .bm-lead + .bm-lead-cont { font-family: var(--serif); font-size: 17.5px; line-height: 1.68; color: var(--ink-2); margin-top: 18px; }

/* chapter (h2) */
.academy-article .art-chapter { margin-top: clamp(56px,7vw,86px); padding-top: clamp(28px,3vw,38px); border-top: 1px solid var(--ink); scroll-margin-top: 104px; }
.academy-article .art-chapter .ch-ix { display: flex; align-items: center; gap: 12px; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-deep); margin-bottom: 16px; }
.academy-article .art-chapter .ch-ix .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }
.academy-article .art-chapter h2.ch-title { font-size: clamp(25px,2.9vw,36px); line-height: 1.1; letter-spacing: -0.02em; color: var(--ink); }
.academy-article .art-chapter h2.ch-title em { font-style: italic; font-family: var(--display); color: var(--blue-deep); }
.academy-article .art-chapter > p { font-size: 17.5px; line-height: 1.72; color: var(--ink-2); margin-top: 22px; }
.academy-article .art-chapter > p strong { color: var(--ink); font-weight: 600; }

/* numbered sub-block */
.academy-article .bm-sec { margin-top: clamp(36px,4.2vw,52px); }
.academy-article .bm-sub-h { display: flex; align-items: baseline; gap: 16px; }
.academy-article .bm-sub-h .sh-n { font-family: var(--display); font-style: italic; font-size: 30px; color: var(--blue-deep); line-height: 1; flex: 0 0 auto; }
.academy-article .bm-sub-h h3 { font-size: clamp(20px,2.1vw,26px); line-height: 1.2; letter-spacing: -0.015em; color: var(--ink); }
.academy-article .bm-sec p { font-size: 17.5px; line-height: 1.72; color: var(--ink-2); margin-top: 18px; }
.academy-article .bm-sec p strong { color: var(--ink); font-weight: 600; }
.academy-article .bm-sec .sub-intro { margin-top: 14px; }

/* term card */
.academy-article .term { margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--line-soft); }
.academy-article .term:first-of-type { border-top: 0; padding-top: 0; }
.academy-article .term h4 { font-size: clamp(18px,1.8vw,21px); line-height: 1.25; color: var(--ink); display: flex; align-items: baseline; gap: 11px; flex-wrap: wrap; }
.academy-article .term h4 .abbr { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold-deep); background: #FBF6EA; border: 1px solid var(--gold-soft); border-radius: 3px; padding: 3px 8px; font-weight: 500; }
.academy-article .term p { font-size: 16.5px; line-height: 1.68; color: var(--ink-2); margin-top: 14px; }
.academy-article .term p strong { color: var(--ink); font-weight: 600; }

/* bullet lists */
.academy-article .bm-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 11px; }
.academy-article .bm-list li { position: relative; padding-left: 24px; font-size: 16.5px; line-height: 1.6; color: var(--ink-2); }
.academy-article .bm-list li::before { content: ""; position: absolute; left: 3px; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }
.academy-article .bm-list li strong { color: var(--ink); font-weight: 600; }

/* learn-more label */
.academy-article .learn-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 16px; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-deep); border: 1px solid var(--blue-soft); background: #EEF4FA; border-radius: 999px; padding: 7px 14px; }
.academy-article .learn-more svg { flex: 0 0 auto; }

/* FAQ: one "Common questions" white card holding open Q&A (.term) items
   (matches the source design; not an accordion). */
.academy-article .bm-faq { margin-top: clamp(36px,4.2vw,52px); background: #fff; border: 1px solid var(--line, #C9D0DA); border-radius: var(--radius-lg, 10px); padding: clamp(24px,3vw,34px) clamp(22px,3vw,34px); box-shadow: 0 1px 2px rgba(11,18,32,0.04), 0 12px 30px -18px rgba(11,18,32,0.18); }
.academy-article .bm-faq .faq-label { font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-deep, #8C6620); margin-bottom: 4px; }
.academy-article .bm-faq .term:first-of-type { margin-top: 16px; padding-top: 0; border-top: 0; }

/* pull / question */
.academy-article .bm-pull { font-family: var(--display); font-style: italic; font-size: clamp(22px,2.7vw,31px); line-height: 1.28; color: var(--blue-deep); margin: 30px 0 0; padding-left: 24px; border-left: 2px solid var(--gold); text-wrap: balance; }
.academy-article .bm-pull.alt { color: var(--ink); margin-top: 14px; }

/* disclaimer note */
.academy-article .bm-note { margin-top: clamp(40px,4vw,52px); background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: var(--radius-lg); padding: 22px 26px; }
.academy-article .bm-note .n-label { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue-deep); margin-bottom: 10px; }
.academy-article .bm-note p { font-size: 15px; line-height: 1.65; color: var(--ink-3); font-style: italic; font-family: var(--serif); }

/* citations */
.academy-article .bm-cites { margin-top: clamp(40px,4vw,52px); }
.academy-article .bm-cites .c-label { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.academy-article .bm-cites ol { list-style: none; margin: 0; padding: 0; counter-reset: cite; }
.academy-article .bm-cites li { counter-increment: cite; border-bottom: 1px solid var(--line-soft); }
.academy-article .bm-cites a { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: baseline; padding: 15px 2px; transition: background .15s; }
.academy-article .bm-cites a::before { content: counter(cite, decimal-leading-zero); font-family: var(--mono); font-size: 11px; color: var(--gold-deep); letter-spacing: 0.04em; }
.academy-article .bm-cites .c-name { font-size: 14.5px; line-height: 1.45; color: var(--ink-2); transition: color .15s; }
.academy-article .bm-cites a:hover .c-name { color: var(--blue-deep); }
.academy-article .bm-cites .c-ar { color: var(--muted-2); font-size: 13px; transition: transform .18s, color .15s; }
.academy-article .bm-cites a:hover .c-ar { transform: translateX(3px); color: var(--blue); }

/* CTA / subscribe */
.academy-article .subscribe { padding: clamp(20px,3vw,32px) 0 clamp(64px,8vw,104px); }
.academy-article .sub-card { background: var(--ink); color: var(--paper); border-radius: var(--radius-lg); padding: clamp(40px,5vw,64px) clamp(28px,4vw,56px); display: grid; grid-template-columns: 1.2fr 1fr; gap: 44px; align-items: center; position: relative; overflow: hidden; }
.academy-article .sub-card::before { content: ""; position: absolute; top: -40%; left: 8%; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(184,134,47,0.16) 0%, transparent 70%); pointer-events: none; }
.academy-article .sub-card .eyebrow { color: var(--gold-soft); position: relative; }
.academy-article .sub-card h2 { margin: 14px 0 0; color: var(--paper); position: relative; font-size: clamp(26px,3vw,40px); line-height: 1.1; letter-spacing: -0.02em; }
.academy-article .sub-card h2 em { font-style: italic; font-family: var(--display); color: var(--gold-soft); }
.academy-article .sub-card p { margin-top: 14px; color: rgba(247,248,250,0.74); max-width: 440px; font-size: 15px; line-height: 1.6; position: relative; }
.academy-article .sub-form { display: flex; flex-direction: column; gap: 14px; position: relative; }
.academy-article .sub-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.academy-article .btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 22px; border-radius: 999px; font-size: 14px; font-weight: 500; letter-spacing: 0.01em; border: 1px solid transparent; transition: all 0.18s ease; white-space: nowrap; }
.academy-article .sub-card .cta-btn { display: inline-flex; align-items: center; gap: 10px; background: var(--gold); color: #1a1300; font-weight: 600; font-size: 15px; padding: 15px 28px; border-radius: 999px; transition: transform .18s, background .18s; }
.academy-article .sub-card .cta-btn:hover { background: #c99a4a; transform: translateY(-2px); }
.academy-article .sub-card .btn-ghost { color: var(--paper); border-color: rgba(255,255,255,0.28); }
.academy-article .sub-card .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,0.06); }
.academy-article .sub-form .fine { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(247,248,250,0.6); padding-left: 4px; }
@media (max-width: 780px) { .academy-article .sub-card { grid-template-columns: 1fr; padding: 36px 28px; } }

.academy-article a:focus-visible, .academy-article .btn:focus-visible, .academy-article .bm-gene:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }

/* ---- post-review fixes ---- */
/* No underline anywhere in the article (matches the source design); sources in
   particular must never get a (blue) underline. */
.academy-article a { text-decoration: none; }
.academy-article .bm-cites a,
.academy-article .bm-cites a:hover,
.academy-article .bm-cites a:focus,
.academy-article .bm-cites .c-name { text-decoration: none; }
/* Block-grammar flags moved off inline styles onto modifier classes. */
.academy-article .bm-sec.is-tight { margin-top: 0; }
.academy-article .art-chapter.is-sep { border-top-color: var(--line-soft); }
/* Per-chapter citation groups (A2) sit tighter than the article-level block. */
.academy-article .art-chapter .bm-cites { margin-top: clamp(28px, 3vw, 36px); }

/* ---- design-fidelity restoration (vs original HTML) ---- */
/* Disclaimer is a proper card; hard fallbacks so border/blue rule always read. */
.academy-article .bm-note { background: #fff; border: 1px solid var(--line, #C9D0DA); border-left: 3px solid var(--blue, #2B6CB0); border-radius: var(--radius-lg, 10px); box-shadow: 0 1px 2px rgba(11,18,32,0.04), 0 12px 30px -18px rgba(11,18,32,0.18); }
/* Serif faces the port dropped on these headings. */
.academy-article .term h4 { font-family: var(--serif); }
.academy-article .art-chapter h2.ch-title { font-family: var(--serif); }
/* learn-more is an <a> now: link reset + a real hover/focus affordance. */
.academy-article a.learn-more { text-decoration: none; transition: background .2s ease, border-color .2s ease, color .2s ease; }
.academy-article a.learn-more:hover { background: #E2EDF7; border-color: var(--blue, #2B6CB0); color: var(--blue-deep, #1E4E7E); }
.academy-article a.learn-more svg { transition: transform .2s ease; }
.academy-article a.learn-more:hover svg { transform: translateX(2px); }
/* Light-context ghost button base (the port only kept the dark CTA override). */
.academy-article .btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.academy-article .btn-ghost:hover { border-color: var(--ink); background: rgba(255,255,255,0.4); }

/* Entrance reveal (.rise / .delay-*), restored with reduced-motion respect.
   Default visible so content never hides if CSS/JS is unavailable. */
.academy-article .rise { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  @keyframes ngsAcadRise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
  .academy-article .rise { opacity: 0; transform: translateY(16px); animation: ngsAcadRise .7s cubic-bezier(.2,.7,.2,1) both; }
  .academy-article .rise.delay-1 { animation-delay: .06s; }
  .academy-article .rise.delay-2 { animation-delay: .13s; }
  .academy-article .rise.delay-3 { animation-delay: .20s; }
}
@media (prefers-reduced-motion: reduce) {
  .academy-article .toc-marker, .academy-article .bm-gene, .academy-article .bm-gene .g-name { transition: none; }
}