/* ============================================================
   INSIGHTS POST — single-article template
   Reading column 68ch, editorial typography, sources, author bio,
   related posts, end-of-post CTA.
   ============================================================ */

/* ---- Post header (no hero image; type-led) ---- */
.ip-header {
  padding: var(--s-9) 0 var(--s-7);
  border-bottom: 1px solid var(--mf-ink-10);
  background: var(--mf-paper);
}
.ip-header-inner {
  max-width: 800px; margin: 0 auto;
  padding: 0 var(--s-5);
}
.ip-eyebrow {
  font-family: var(--font-body); font-size: 12px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--mf-navy);
  margin-bottom: var(--s-4);
  display: inline-block;
}
.ip-h1 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(2rem, 4.4vw, 3.5rem); line-height: 1.05;
  letter-spacing: -0.022em; color: var(--mf-ink);
  margin: 0 0 var(--s-4); text-wrap: balance;
}
.ip-h1 em { font-style: italic; font-weight: 300; }
.ip-subhead {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.1rem, 1.6vw, 1.35rem); line-height: 1.5;
  color: var(--mf-ink-80); max-width: 50ch;
  margin: 0 0 var(--s-6);
  text-wrap: pretty;
}
.ip-byline {
  display: flex; flex-wrap: wrap; gap: 6px 10px;
  align-items: baseline;
  font-family: var(--font-body); font-size: 13px; line-height: 1.4;
  color: var(--mf-ink-60);
  letter-spacing: 0.02em;
}
.ip-byline a {
  color: var(--mf-ink); border-bottom: 1px solid var(--mf-ink-20);
  text-decoration: none; padding-bottom: 1px;
}
.ip-byline a:hover { border-bottom-color: var(--mf-navy); color: var(--mf-navy); }
.ip-byline-sep {
  display: inline-block; width: 3px; height: 3px;
  border-radius: 50%; background: var(--mf-ink-30, rgba(26,26,26,0.25));
  position: relative; top: -3px; margin: 0 4px;
}

/* ---- Hero image ---- */
.ip-hero {
  background: var(--mf-paper);
  padding: var(--s-7) 0 0;
}
.ip-hero-frame {
  max-width: var(--container-max); margin: 0 auto;
  padding: 0 var(--s-5);
}
.ip-hero-img {
  aspect-ratio: 16/9; overflow: hidden;
  background: var(--mf-ink-10);
}
.ip-hero-img img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  filter: saturate(0.94);
}
.ip-hero-cap {
  font-family: var(--font-body); font-size: 12px;
  color: var(--mf-ink-60); letter-spacing: 0.04em;
  margin: var(--s-3) 0 0; max-width: 64ch;
}

/* ---- Body — single 68ch column ---- */
.ip-body {
  background: var(--mf-paper);
  padding: var(--s-9) 0 var(--s-9);
}
.ip-prose {
  max-width: 68ch; margin: 0 auto;
  padding: 0 var(--s-5);
  font-family: var(--font-body);
  font-size: 18px; line-height: 1.7;
  color: var(--mf-ink);
}
@media (max-width: 600px) { .ip-prose { font-size: 17px; line-height: 1.65; } }

.ip-prose > p { margin: 0 0 1.4em; }
.ip-prose > p:first-child { font-size: 1.08em; line-height: 1.6; color: var(--mf-ink); }
.ip-prose > h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.2;
  letter-spacing: -0.012em;
  color: var(--mf-ink);
  margin: 2em 0 0.6em;
  text-wrap: pretty;
}
.ip-prose > h3 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.2rem, 1.7vw, 1.4rem); line-height: 1.25;
  letter-spacing: -0.005em;
  color: var(--mf-ink);
  margin: 1.6em 0 0.4em;
}
.ip-prose a {
  color: var(--mf-navy);
  border-bottom: 1px solid currentColor;
  text-decoration: none; padding-bottom: 1px;
  transition: color 0.15s ease;
}
.ip-prose a:hover { color: var(--mf-ink); }
.ip-prose strong { font-weight: 600; color: var(--mf-ink); }
.ip-prose em { font-style: italic; }
.ip-prose blockquote {
  margin: 2em 0;
  padding: var(--s-2) 0 var(--s-2) var(--s-5);
  border-left: 4px solid var(--mf-navy);
  font-family: var(--font-display); font-style: italic; font-weight: 300;
  font-size: 1.4em; line-height: 1.4;
  color: var(--mf-ink);
  text-wrap: pretty;
}
.ip-prose blockquote.ip-cite {
  font-family: var(--font-body); font-style: italic; font-weight: 400;
  font-size: 1em; line-height: 1.6;
  color: var(--mf-ink-80);
}
.ip-prose ul, .ip-prose ol {
  margin: 0 0 1.4em; padding-left: 1.4em;
}
.ip-prose ul li { list-style: none; position: relative; padding-left: 4px; margin-bottom: 0.5em; }
.ip-prose ul li::before {
  content: ''; position: absolute; left: -1.1em; top: 0.65em;
  width: 6px; height: 6px; background: var(--mf-navy);
}
.ip-prose ol { padding-left: 1.6em; }
.ip-prose ol li {
  margin-bottom: 0.5em;
}
.ip-prose ol li::marker {
  font-family: var(--font-display); font-weight: 400;
  color: var(--mf-navy);
}
.ip-prose img.ip-inline {
  display: block; width: 100%; height: auto;
  margin: 2em 0 0.5em;
}
.ip-prose figure { margin: 2em 0; }
.ip-prose figure img { display: block; width: 100%; height: auto; }
.ip-prose figcaption,
.ip-prose .ip-cap {
  font-family: var(--font-body); font-size: 12px;
  color: var(--mf-ink-60); letter-spacing: 0.04em;
  margin: var(--s-2) 0 0;
}
.ip-prose hr {
  border: none; border-top: 1px solid var(--mf-ink-10);
  margin: 2.5em 0;
}

/* ---- Coming-soon "links to elsewhere" block (placeholder posts) ---- */
.ip-soon-links {
  list-style: none; padding: 0; margin: 1.6em 0 0;
  display: grid; gap: var(--s-2);
}
.ip-soon-links li {
  padding: 0; margin: 0;
}
.ip-soon-links li::before { display: none; }
.ip-soon-links a {
  display: flex; align-items: baseline; gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--mf-ink-10);
  font-family: var(--font-display); font-weight: 400;
  font-size: 1.15em; letter-spacing: -0.005em;
  color: var(--mf-ink);
  border-left: none; padding-bottom: 14px;
}
.ip-soon-links a::after {
  content: '→'; margin-left: auto;
  color: var(--mf-navy); font-family: var(--font-body);
  transition: transform 0.2s ease;
}
.ip-soon-links a:hover { color: var(--mf-navy); }
.ip-soon-links a:hover::after { transform: translateX(4px); }

/* ---- FAQ accordion within prose ---- */
.ip-faq {
  margin: var(--s-9) auto 0;
  max-width: 68ch; padding: 0 var(--s-5);
}
.ip-faq-eyebrow {
  font-family: var(--font-body); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--mf-ink-60); margin-bottom: var(--s-3);
}
.ip-faq-h {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem); letter-spacing: -0.015em;
  color: var(--mf-ink); margin: 0 0 var(--s-5);
}
.ip-faq-list {
  list-style: none; padding: 0; margin: 0;
  border-top: 1px solid var(--mf-ink-15, rgba(26,26,26,0.12));
}
.ip-faq-item { border-bottom: 1px solid var(--mf-ink-10); }
.ip-faq-q {
  width: 100%; text-align: left; cursor: pointer;
  background: none; border: none; padding: var(--s-4) 0;
  display: flex; align-items: baseline; gap: var(--s-3); justify-content: space-between;
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.3; letter-spacing: -0.005em;
  color: var(--mf-ink);
}
.ip-faq-q-mark {
  flex: 0 0 auto;
  width: 18px; height: 18px;
  position: relative; display: inline-block;
  margin-top: 6px;
}
.ip-faq-q-mark::before, .ip-faq-q-mark::after {
  content: ''; position: absolute; background: var(--mf-navy);
  transition: transform 0.25s ease;
}
.ip-faq-q-mark::before { left: 0; right: 0; top: 50%; height: 1px; transform: translateY(-50%); }
.ip-faq-q-mark::after  { top: 0; bottom: 0; left: 50%; width: 1px; transform: translateX(-50%); }
.ip-faq-item.open .ip-faq-q-mark::after { transform: translateX(-50%) scaleY(0); }
.ip-faq-a {
  overflow: hidden; max-height: 0;
  transition: max-height 0.3s ease, padding 0.25s ease;
  font-family: var(--font-body); font-size: 16px; line-height: 1.65;
  color: var(--mf-ink-80);
}
.ip-faq-item.open .ip-faq-a {
  max-height: 800px;
  padding: 0 0 var(--s-5);
}
.ip-faq-a p { margin: 0 0 0.9em; }
.ip-faq-a p:last-child { margin-bottom: 0; }

/* ---- Sources ---- */
.ip-sources {
  max-width: 68ch; margin: var(--s-9) auto 0;
  padding: var(--s-7) var(--s-5) 0;
  border-top: 1px solid var(--mf-ink-10);
}
.ip-sources-eyebrow {
  font-family: var(--font-body); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--mf-ink-60); margin-bottom: var(--s-4);
}
.ip-sources-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: var(--s-3);
  counter-reset: src;
}
.ip-sources-list li {
  position: relative; padding-left: 32px;
  font-family: var(--font-body); font-size: 14px; line-height: 1.55;
  color: var(--mf-ink-80);
  counter-increment: src;
}
.ip-sources-list li::before {
  content: counter(src, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  font-family: var(--font-display); font-weight: 400;
  color: var(--mf-navy); font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.ip-sources-list a { color: var(--mf-navy); }

/* ---- Author bio block ---- */
.ip-author {
  background: var(--mf-paper-warm);
  padding: var(--s-9) 0;
  border-top: 1px solid var(--mf-ink-10);
}
.ip-author-inner {
  max-width: var(--container-max); margin: 0 auto;
  padding: 0 var(--s-5);
  display: grid; grid-template-columns: 160px 1fr; gap: var(--s-7);
  align-items: start;
}
.ip-author-portrait {
  width: 160px; height: 160px;
  background: var(--mf-paper-deep);
  overflow: hidden;
  position: relative;
}
.ip-author-portrait img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ip-author-portrait-fallback {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 300; font-size: 56px;
  color: var(--mf-ink-30, rgba(26,26,26,0.25));
  letter-spacing: -0.02em;
  background: var(--mf-paper-deep);
}
.ip-author-eyebrow {
  font-family: var(--font-body); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--mf-ink-60); margin-bottom: var(--s-3);
}
.ip-author-name {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.5rem, 2.2vw, 1.9rem); letter-spacing: -0.012em;
  color: var(--mf-ink); margin: 0 0 8px;
}
.ip-author-role {
  font-family: var(--font-body); font-size: 11px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--mf-ink-80); margin-bottom: var(--s-4);
}
.ip-author-bio {
  font-family: var(--font-body); font-size: 15px; line-height: 1.65;
  color: var(--mf-ink-80); max-width: 60ch;
  margin: 0 0 var(--s-3);
}
.ip-author-link {
  font-family: var(--font-body); font-size: 14px;
  color: var(--mf-navy); text-decoration: none;
  border-bottom: 1px solid var(--mf-navy);
  padding-bottom: 1px;
}
.ip-author-link:hover { color: var(--mf-ink); border-color: var(--mf-ink); }
@media (max-width: 720px) {
  .ip-author-inner { grid-template-columns: 100px 1fr; gap: var(--s-5); }
  .ip-author-portrait { width: 100px; height: 100px; }
  .ip-author-portrait-fallback { font-size: 36px; }
}

/* ---- Related posts ---- */
.ip-related {
  background: var(--mf-paper);
  padding: var(--s-10) 0;
  border-top: 1px solid var(--mf-ink-10);
}
.ip-related-inner {
  max-width: var(--container-max); margin: 0 auto;
  padding: 0 var(--s-5);
}
.ip-related-eyebrow {
  font-family: var(--font-body); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--mf-ink-60); margin-bottom: var(--s-3);
}
.ip-related-h {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.7rem, 2.8vw, 2.4rem); letter-spacing: -0.015em;
  color: var(--mf-ink); margin: 0 0 var(--s-7);
}
.ip-related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-7);
}
@media (max-width: 1000px) { .ip-related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .ip-related-grid { grid-template-columns: 1fr; } }

/* ---- End-of-post CTA ---- */
.ip-cta {
  background: var(--mf-paper-warm);
  padding: var(--s-10) 0;
  border-top: 1px solid var(--mf-ink-10);
  text-align: center;
}
.ip-cta-inner {
  max-width: 680px; margin: 0 auto;
  padding: 0 var(--s-5);
}
.ip-cta-h {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem); line-height: 1.15;
  letter-spacing: -0.018em; color: var(--mf-ink);
  margin: 0 0 var(--s-3); text-wrap: balance;
}
.ip-cta-h em { font-style: italic; font-weight: 300; }
.ip-cta-sub {
  font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  color: var(--mf-ink-80); max-width: 52ch;
  margin: 0 auto var(--s-6);
}
.ip-cta-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 30px;
  background: var(--mf-ink); color: var(--mf-paper);
  font-family: var(--font-body); font-size: 13px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  text-decoration: none; cursor: pointer;
  transition: background 0.15s ease;
}
.ip-cta-btn:hover { background: var(--mf-navy); }
.ip-cta-secondary {
  display: block; margin-top: var(--s-4);
  font-family: var(--font-body); font-size: 13px;
  letter-spacing: 0.04em; color: var(--mf-ink-80);
  text-decoration: none;
}
.ip-cta-secondary:hover { color: var(--mf-navy); }