/* Strategic Labs — V002-M2 Insights: a premium knowledge platform.
   Featured insight + editorial discovery + article reading experience. */

/* ================= INDEX ================= */
.insights-featured {
  position: relative; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(1.75rem, 4vw, 4rem); align-items: center;
  padding: clamp(1.75rem, 3.5vw, 3.5rem);
  background: var(--mint-wash); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: clip;
}
.insights-featured__body h3 { font-size: clamp(1.35rem, 2.2vw, 1.9rem); line-height: 1.4; margin-bottom: var(--s4); }
.insights-featured__body p { color: var(--ink-soft); max-width: 56ch; margin-bottom: var(--s5); }
.insights-featured__mark {
  display: grid; place-items: center; aspect-ratio: 1; inline-size: clamp(110px, 14vw, 180px); justify-self: center;
  border-radius: 50%; background: var(--white); box-shadow: var(--e2); color: var(--brand-mid);
}
.insights-featured__mark span { font-size: clamp(1.6rem, 3vw, 2.6rem); font-weight: 700; }

main[data-page="insights"] .pm-publication-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }

/* ================= ARTICLE ================= */
.article-page { background: var(--paper); }
.article-hero {
  position: relative; padding-block: clamp(3rem, 2.4rem + 3.6vw, 6rem) clamp(2rem, 1.6rem + 2.4vw, 3.5rem);
  background: linear-gradient(180deg, var(--mint-wash) 0%, var(--paper) 100%); overflow: clip; isolation: isolate;
}
.article-hero::before {
  content: ""; position: absolute; inset-block-start: -45%; inset-inline-end: -8%; z-index: -2;
  inline-size: min(520px, 50%); aspect-ratio: 1; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle at 50% 50%, rgba(68,188,167,.18), transparent 68%);
  animation: sl-drift calc(var(--t-drift) * 1.3) ease-in-out infinite alternate;
}
.article-hero__inner { position: relative; width: min(880px, calc(100vw - 80px)); margin-inline: auto; }
.article-hero h1 { font-size: clamp(1.95rem, 1.35rem + 2.1vw, 3.25rem); max-width: 22ch; }
.article-deck { margin-block: var(--s5) 0; font-size: var(--fs-lead); line-height: 1.8; color: var(--ink-soft); max-width: 62ch; }
.article-meta {
  display: flex; flex-wrap: wrap; gap: var(--s4); align-items: center;
  margin-block: var(--s6) 0; padding-block-start: var(--s5); border-block-start: 1px solid var(--line);
  color: var(--muted); font-size: var(--fs-sm);
}
.article-meta a { color: var(--brand-mid); font-weight: 600; }

.reading-column { width: min(68ch, calc(100vw - 80px)); margin-inline: auto; padding-block: var(--sec); }
.article-body { font-size: clamp(1.06rem, 1rem + .22vw, 1.16rem); line-height: 2; }
.article-body .prose { max-width: none; }
.article-body h2 { font-size: clamp(1.3rem, 1.1rem + .9vw, 1.7rem); }
.article-body h3 { font-size: clamp(1.15rem, 1.05rem + .5vw, 1.35rem); }

/* related reading — editorial rail, not a bordered matrix */
.related-reading { padding-block: var(--sec); background: var(--paper-2); border-block-start: 1px solid var(--line); }
.related-reading .section-heading { margin-bottom: var(--s6); display: grid; gap: var(--s3); }
.insight-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: var(--s5); }
.insight-card {
  display: flex; flex-direction: column; gap: var(--s4); min-block-size: 160px; padding: var(--s6);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r-card); box-shadow: var(--e1);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}
.insight-card:hover { transform: translateY(-4px); box-shadow: var(--e3); border-color: var(--mint); }
.insight-card > span { color: var(--brand-mid); font-size: var(--fs-eyebrow); font-weight: 700; font-family: Arial, sans-serif; }
.insight-card h3 { margin: 0; font-size: 1.02rem; line-height: 1.55; transition: color var(--t) var(--ease); }
.insight-card:hover h3 { color: var(--brand-mid); }
.insight-card::after { content: "←"; margin-block-start: auto; color: var(--brand-mid); font-size: .95rem; transition: transform var(--t) var(--ease); }
.insight-card:hover::after { transform: translateX(-4px); }

.closing-cta { position: relative; padding-block: var(--sec); background: var(--ink-800); color: var(--on-dark); overflow: clip; isolation: isolate; }
.closing-cta::before {
  content: ""; position: absolute; inset: -25% -10%; z-index: -2; pointer-events: none;
  background: radial-gradient(52% 58% at 82% 10%, rgba(68,188,167,.22), transparent 62%), radial-gradient(46% 52% at 12% 90%, rgba(21,112,94,.32), transparent 66%);
  animation: sl-drift var(--t-drift) ease-in-out infinite alternate;
}
.closing-cta__inner { position: relative; display: grid; grid-template-columns: minmax(0, 7fr) auto; gap: clamp(1.5rem, 4vw, 4rem); align-items: center; }
.closing-cta h2 { margin: 0; font-size: var(--fs-h2); color: var(--on-dark); max-width: 20ch; }
.closing-cta p { margin-block: var(--s4) 0; color: var(--on-dark-soft); max-width: 56ch; }

@media (max-width: 1023px) {
  .closing-cta__inner { grid-template-columns: 1fr; align-items: start; }
}
@media (max-width: 833px) {
  .insights-featured { grid-template-columns: 1fr; }
  .insights-featured__mark { justify-self: start; }
  .article-hero__inner, .reading-column { width: calc(100% - 44px); }
}
@media (max-width: 599px) {
  .article-hero h1 { max-width: none; }
  .article-hero__inner, .reading-column { width: calc(100% - 36px); }
  .insight-card { padding: var(--s5); }
}