/* NeuroPouch /learn/ shared styles */
:root {
  --navy: #1C2B4A;
  --navy-light: #243559;
  --rose-gold: #C4956A;
  --blush: #E8C5B8;
  --cream: #F8F4EF;
  --warm-white: #FDFAF7;
  --charcoal: #2D3142;
  --muted: #6B7280;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--warm-white);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  color: var(--charcoal);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--rose-gold); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--navy); }

/* Skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--navy); color: var(--warm-white);
  padding: .75rem 1rem; z-index: 100; border-radius: 0 0 .5rem 0;
}
.skip-link:focus { left: 0; }

/* Nav */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(253,250,247,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(196,149,106,.15);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem;
}
.nav-brand {
  font-family: 'DM Serif Display', serif; font-size: 1.25rem;
  color: var(--navy); text-decoration: none;
}
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a {
  color: var(--charcoal); text-decoration: none; font-size: .9rem;
  font-weight: 500;
}
.nav-links a:hover { color: var(--rose-gold); }
.nav-links a[aria-current="page"] { color: var(--rose-gold); }
.nav-cta {
  background: var(--navy); color: var(--warm-white) !important;
  padding: .55rem 1.1rem; border-radius: 999px; font-size: .85rem !important;
  font-weight: 600 !important; text-decoration: none !important;
}
.nav-cta:hover { background: var(--navy-light); }

/* Breadcrumbs */
.breadcrumbs {
  max-width: 760px; margin: 1.5rem auto 0; padding: 0 1.5rem;
  font-size: .8rem; color: var(--muted);
}
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--navy); }
.breadcrumbs [aria-current="page"] { color: var(--charcoal); font-weight: 500; }

/* Article */
.article {
  max-width: 760px; margin: 0 auto; padding: 2rem 1.5rem 5rem;
}
.article-eyebrow {
  display: inline-block; font-size: .7rem; letter-spacing: .15em;
  text-transform: uppercase; color: var(--rose-gold); font-weight: 700;
  margin-bottom: .75rem;
}
.article h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15; color: var(--navy);
  margin: 0 0 1rem;
}
.article-meta {
  font-size: .85rem; color: var(--muted);
  display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.5rem;
  padding-bottom: 1.5rem; border-bottom: 1px solid rgba(196,149,106,.2);
}
.article-meta span::after { content: " ·"; margin-left: 1rem; color: rgba(196,149,106,.5); }
.article-meta span:last-child::after { content: ""; }

/* Quick Answer / TOC / Definition / Callout */
.quick-answer {
  background: linear-gradient(135deg, var(--cream), var(--warm-white));
  border-left: 4px solid var(--rose-gold);
  padding: 1.25rem 1.5rem; border-radius: 0 .75rem .75rem 0;
  margin: 0 0 2.5rem;
}
.quick-answer strong {
  display: block; font-size: .75rem; letter-spacing: .15em;
  text-transform: uppercase; color: var(--rose-gold);
  margin-bottom: .5rem; font-weight: 700;
}
.quick-answer p { margin: 0; color: var(--charcoal); }

.toc {
  background: var(--cream); border-radius: .75rem;
  padding: 1.25rem 1.5rem; margin: 0 0 2.5rem;
}
.toc strong {
  display: block; font-size: .75rem; letter-spacing: .15em;
  text-transform: uppercase; color: var(--navy);
  margin-bottom: .75rem; font-weight: 700;
}
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc li { margin-bottom: .25rem; font-size: .9rem; }
.toc a { color: var(--charcoal); text-decoration: none; }
.toc a:hover { color: var(--rose-gold); text-decoration: underline; }

.definition {
  background: rgba(196,149,106,.06);
  border: 1px solid rgba(196,149,106,.2);
  border-radius: .75rem; padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}
.definition strong { color: var(--navy); }

/* Article body */
.article h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.75rem; color: var(--navy);
  margin: 3rem 0 1rem; line-height: 1.25;
}
.article h3 {
  font-size: 1.2rem; color: var(--charcoal);
  margin: 2rem 0 .75rem; font-weight: 600;
}
.article p { margin: 0 0 1.25rem; color: var(--charcoal); }
.article ul, .article ol { padding-left: 1.5rem; margin: 0 0 1.5rem; }
.article li { margin-bottom: .5rem; }
.article table {
  width: 100%; border-collapse: collapse;
  margin: 1.5rem 0; font-size: .9rem;
}
.article th, .article td {
  border-bottom: 1px solid rgba(196,149,106,.25);
  padding: .75rem 1rem; text-align: left;
}
.article th {
  background: var(--cream); color: var(--navy);
  font-weight: 600;
}
.article blockquote {
  border-left: 3px solid var(--rose-gold);
  padding: .5rem 0 .5rem 1.25rem; margin: 1.5rem 0;
  color: var(--muted); font-style: italic;
}

/* References */
.references {
  margin-top: 3rem; padding-top: 2rem;
  border-top: 1px solid rgba(196,149,106,.25);
}
.references h2 { font-size: 1.3rem; margin-top: 0; }
.references ol { font-size: .85rem; color: var(--muted); padding-left: 1.25rem; }
.references li { margin-bottom: .5rem; }
.references a { word-break: break-all; }

/* Related */
.related {
  background: var(--cream); padding: 3rem 1.5rem;
  margin-top: 4rem;
}
.related-inner { max-width: 1100px; margin: 0 auto; }
.related h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.5rem; color: var(--navy);
  margin: 0 0 1.5rem;
}
.related-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.related-card {
  background: var(--warm-white); padding: 1.25rem 1.5rem;
  border-radius: .75rem; border: 1px solid rgba(196,149,106,.2);
  text-decoration: none; color: var(--charcoal);
  transition: transform .2s, box-shadow .2s, border-color .2s;
  display: block;
}
.related-card:hover {
  transform: translateY(-3px);
  border-color: var(--rose-gold);
  box-shadow: 0 12px 30px rgba(28,43,74,.08);
}
.related-card-eyebrow {
  font-size: .65rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--rose-gold);
  font-weight: 700; margin-bottom: .5rem;
}
.related-card-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.1rem; color: var(--navy);
  margin: 0 0 .35rem; line-height: 1.3;
}
.related-card-desc { font-size: .85rem; color: var(--muted); margin: 0; }

/* CTA */
.cta-band {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  padding: 3.5rem 1.5rem; text-align: center;
  color: var(--warm-white);
}
.cta-band h2 {
  font-family: 'DM Serif Display', serif; font-size: 2rem;
  margin: 0 0 .75rem; color: var(--warm-white);
}
.cta-band p { margin: 0 0 1.5rem; color: rgba(253,250,247,.75); }
.cta-band a {
  display: inline-block; background: var(--rose-gold);
  color: var(--warm-white); padding: .9rem 2rem;
  border-radius: 999px; font-weight: 600;
  text-decoration: none; font-size: .95rem;
}
.cta-band a:hover { background: #b88758; }

/* Footer */
.site-footer {
  background: var(--navy); color: rgba(253,250,247,.7);
  padding: 2rem 1.5rem; text-align: center; font-size: .85rem;
}
.site-footer a { color: rgba(253,250,247,.7); margin: 0 .75rem; }
.site-footer a:hover { color: var(--warm-white); }

/* Hub specific */
.hub-hero {
  max-width: 1100px; margin: 0 auto; padding: 3rem 1.5rem 2rem;
  text-align: center;
}
.hub-hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  color: var(--navy); margin: 0 0 1rem;
}
.hub-hero p {
  max-width: 600px; margin: 0 auto; color: var(--muted);
  font-size: 1.05rem;
}
.hub-section {
  max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem;
}
.hub-section h2 {
  font-family: 'DM Serif Display', serif; font-size: 1.6rem;
  color: var(--navy); margin: 2rem 0 1rem;
}