/* ============================================================
   INSIGHTS / ARTICLES / EDUCATION, shared styles
   Extends UniBess design system (Manrope + Inter + brand blue)
   ============================================================ */

/* ---------- Insights nav (sits on top of any page) ---------- */
.ins-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.ins-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 14px;
}
.ins-nav-links {
  display: flex; gap: 32px;
  font-size: 14px;
  color: var(--ink-2);
}
.ins-nav-links a { transition: color .15s; }
.ins-nav-links a:hover { color: var(--ink); }
.ins-nav-links a.on { color: var(--ink); font-weight: 600; }
.ins-nav-links a.on::after {
  content: ""; display: block; height: 2px; background: var(--blue);
  margin-top: 2px;
}
.btn-sm { padding: 8px 14px; font-size: 13px; }
@media (max-width: 720px) {
  .ins-nav-links { display: none; }
}

/* ---------- Insights hero ---------- */
.insights-hero {
  padding: clamp(140px, 12vw, 180px) 0 clamp(40px, 5vw, 64px);
  background:
    radial-gradient(ellipse at 80% 0%, rgba(30,157,255,0.10), transparent 60%),
    linear-gradient(180deg, #FFFFFF 0%, #F4F7FB 100%);
  border-bottom: 1px solid var(--line);
}

/* ---------- Filter chips ---------- */
.insights-filter-wrap {
  margin-top: 0;
  padding-top: 32px;
  padding-bottom: 8px;
}
.insights-filter {
  display: flex; gap: 10px; flex-wrap: wrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.insights-filter::-webkit-scrollbar { display: none; }
.chip {
  padding: 9px 16px;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 999px;
  font-size: 13px; color: var(--ink-2);
  white-space: nowrap;
  transition: all .15s;
}
.chip:hover { color: var(--ink); border-color: var(--blue-2); }
.chip-on {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.insights-section { padding-block: 32px; }

/* ---------- Article cards ---------- */
.art-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform .25s ease, box-shadow .25s ease;
}
.art-card:hover { transform: translateY(-3px); }

/* Featured (full-width hero card) */
.art-featured {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(15,30,60,0.04);
}
.art-featured:hover {
  box-shadow: 0 30px 60px -30px rgba(15,30,60,0.16);
  border-color: rgba(30,157,255,0.4);
}
.art-featured .art-img { overflow: hidden; }
.art-featured .art-img svg { display: block; transition: transform .6s ease; }
.art-featured:hover .art-img svg { transform: scale(1.04); }
.art-featured .art-body {
  padding: clamp(32px, 4vw, 56px);
  display: flex; flex-direction: column; justify-content: center;
}
@media (max-width: 880px) {
  .art-featured { grid-template-columns: 1fr; }
  .art-featured .art-img svg { height: 240px !important; }
}

/* Compact (homepage / sidebar) */
.art-compact {
  padding: 22px;
  border-bottom: 1px solid var(--line);
}
.art-compact:last-child { border-bottom: none; }
.art-compact:hover { background: var(--surface); transform: none; }

/* Default grid card */
.art-default {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.art-default:hover {
  border-color: rgba(30,157,255,0.4);
  box-shadow: 0 20px 40px -20px rgba(15,30,60,0.12);
}
.art-default .art-img-sm { overflow: hidden; }
.art-default .art-img-sm svg { display: block; transition: transform .6s ease; }
.art-default:hover .art-img-sm svg { transform: scale(1.05); }
.art-default .art-meta:first-of-type { padding: 22px 24px 0; }
.art-default .art-title-md { padding: 8px 24px 0; }
.art-default .art-excerpt { padding: 0 24px; }
.art-default .art-meta-bottom { padding: 0 24px 22px; margin-top: auto; }

.art-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 1080px) { .art-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .art-grid { grid-template-columns: 1fr; } }

/* Card text */
.art-meta {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.art-meta-bottom {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-transform: none;
  letter-spacing: 0.04em;
}
.art-cat { color: var(--blue-2); font-weight: 500; }
.art-dot { opacity: 0.5; }

.art-title-xl {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-top: 16px;
  text-wrap: balance;
}
.art-title-md {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-top: 12px;
  text-wrap: balance;
}
.art-excerpt-lg {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-2);
  margin-top: 16px;
  max-width: 56ch;
}
.art-excerpt {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-2);
  margin-top: 10px;
}
.art-author {
  display: flex; align-items: center; gap: 12px;
  margin-top: 28px;
  font-size: 13px;
  color: var(--ink-2);
}
.art-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  color: #fff;
  display: grid; place-items: center;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.02em;
}
.art-arrow {
  margin-left: auto;
  color: var(--blue-2);
  font-weight: 500;
  font-size: 13.5px;
}

/* ---------- Newsletter ---------- */
.newsletter {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  padding: clamp(36px, 5vw, 64px);
  background: linear-gradient(135deg, #0F1E3C 0%, #1B2D4F 100%);
  color: #E6EEF8;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}
.newsletter::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 0% 100%, rgba(30,157,255,0.25), transparent 50%),
    radial-gradient(circle at 100% 0%, rgba(91,187,255,0.15), transparent 50%);
  pointer-events: none;
}
.newsletter > * { position: relative; z-index: 1; }
.newsletter .eyebrow { color: var(--blue-3); }
.newsletter h3 { color: #fff; }
.newsletter h3 em {
  background: linear-gradient(135deg, var(--blue-3), var(--blue));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.newsletter p { color: rgba(230,238,248,0.78); }
.newsletter-form {
  display: flex; flex-direction: column; gap: 12px;
  align-self: center;
}
.newsletter-form input {
  padding: 14px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 10px;
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  transition: border-color .15s, background .15s;
}
.newsletter-form input::placeholder { color: rgba(230,238,248,0.45); }
.newsletter-form input:focus {
  outline: none;
  border-color: var(--blue-2);
  background: rgba(255,255,255,0.12);
}
.newsletter-form .btn { justify-content: center; }
.newsletter-form .small { font-size: 12px; color: rgba(230,238,248,0.5); margin-top: 4px; }
@media (max-width: 880px) {
  .newsletter { grid-template-columns: 1fr; gap: 24px; }
}

/* ---------- Article (long-form) ---------- */
.article-page { background: #FFFFFF; }

.article-hero {
  padding-top: clamp(120px, 11vw, 160px);
  padding-bottom: clamp(32px, 4vw, 56px);
  background: linear-gradient(180deg, #FFFFFF 0%, #F4F7FB 100%);
  border-bottom: 1px solid var(--line);
}
.article-hero .crumbs {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex; gap: 8px; align-items: center;
}
.article-hero .crumbs a { color: var(--ink-3); transition: color .15s; }
.article-hero .crumbs a:hover { color: var(--blue-2); }
.article-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 6.6vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.032em;
  margin-top: 20px;
  text-wrap: balance;
  max-width: 18ch;
}
.article-hero .standfirst {
  font-size: clamp(17px, 1.5vw, 22px);
  line-height: 1.5;
  color: var(--ink-2);
  margin-top: 24px;
  max-width: 64ch;
  text-wrap: pretty;
}
.article-byline {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--ink-2);
}
.article-byline .sep { opacity: 0.4; }
.article-byline .share {
  margin-left: auto;
  display: flex; gap: 8px;
}
.article-byline .share button {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg);
  display: grid; place-items: center;
  color: var(--ink-3);
  transition: all .15s;
  cursor: pointer;
}
.article-byline .share button:hover { color: var(--ink); border-color: var(--blue-2); }

/* Hero illustration band */
.article-hero-art {
  margin-top: 48px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
}

/* Article body grid: TOC + content */
.article-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  padding-block: clamp(48px, 6vw, 96px);
}
@media (max-width: 1000px) {
  .article-body { grid-template-columns: 1fr; gap: 32px; }
  .article-toc { position: static !important; max-width: none !important; }
}

/* ---------- News post (simple blog article) ---------- */
.np-wrap { max-width: 720px; margin-inline: auto; }

.np-head {
  padding-top: clamp(108px, 12vw, 148px);
  padding-bottom: clamp(22px, 3vw, 34px);
}
.np-head .crumbs {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex; gap: 8px; align-items: center;
}
.np-head .crumbs a { color: var(--ink-3); transition: color .15s; }
.np-head .crumbs a:hover { color: var(--blue); }
.np-cat {
  display: inline-block; margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--blue);
}
.np-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 4.4vw, 52px);
  line-height: 1.09;
  letter-spacing: -0.028em;
  margin-top: 12px;
  text-wrap: balance;
}
.np-deck {
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.5;
  color: var(--ink-2);
  margin-top: 20px;
  text-wrap: pretty;
}
.np-meta {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin-top: 24px; padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13.5px; color: var(--ink-3);
}
.np-meta strong { color: var(--ink-2); font-weight: 600; }
.np-meta .np-dot { opacity: 0.4; }

.np-figure { margin: 0; }
.np-figure img {
  display: block; width: 100%; height: auto;
  aspect-ratio: 16 / 9; object-fit: cover;
  border-radius: 14px; border: 1px solid var(--line);
}

.np-body {
  padding-top: clamp(30px, 4vw, 44px);
  padding-bottom: clamp(56px, 7vw, 92px);
}
.np-body > p {
  font-size: 17.5px; line-height: 1.72;
  color: var(--ink-2); margin-top: 20px;
}
.np-body > h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.3vw, 26px);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-top: 40px;
}
.np-related { margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--line); }
.np-related h2 {
  font-family: var(--font-mono);
  font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600;
}
.np-rel-list { list-style: none; margin-top: 16px; display: grid; gap: 2px; }
.np-rel-list li { border-top: 1px solid var(--line); }
.np-rel-list li:first-child { border-top: 0; }
.np-rel-list a {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 13px 2px;
  font-size: 16.5px; font-weight: 600; color: var(--ink);
  transition: color .15s;
}
.np-rel-list a:hover { color: var(--blue); }
.np-rel-list a svg { flex: none; color: var(--blue); }

.np-source {
  margin-top: 44px; padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 15px; color: var(--ink-3); line-height: 1.65;
}
.np-source p { margin-top: 8px; }
.np-source p:first-child { margin-top: 0; }
.np-source a { color: var(--blue); font-weight: 600; }
.np-source a:hover { text-decoration: underline; }
.np-source a svg { vertical-align: -1px; }

.article-toc {
  position: sticky; top: 84px;
  align-self: start;
  font-size: 13px;
  max-width: 240px;
}
.article-toc h6 {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.article-toc ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.article-toc a {
  color: var(--ink-2);
  display: block;
  padding-left: 12px;
  border-left: 2px solid transparent;
  transition: all .15s;
  line-height: 1.4;
}
.article-toc a:hover, .article-toc a.on {
  color: var(--ink);
  border-left-color: var(--blue);
}

.article-toc .progress {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.article-toc .progress-bar {
  height: 4px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.article-toc .progress-bar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--blue-2));
  width: 0%;
  transition: width .15s ease;
}
.article-toc .progress-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-3);
  margin-top: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Article prose */
.article-prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
}
.article-prose > * + * { margin-top: 1.4em; }
.article-prose h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-top: 2em;
  scroll-margin-top: 100px;
}
.article-prose h2 .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--blue-2);
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  letter-spacing: 0.1em;
}
.article-prose h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.3;
  margin-top: 1.6em;
}
.article-prose p { color: var(--ink); }
.article-prose strong { color: var(--ink); font-weight: 600; }
.article-prose a { color: var(--blue-2); border-bottom: 1px solid currentColor; }
.article-prose a:hover { color: var(--blue); }
.article-prose ul, .article-prose ol {
  padding-left: 24px;
  display: flex; flex-direction: column; gap: 8px;
}
.article-prose li { padding-left: 4px; }
.article-prose blockquote {
  border-left: 3px solid var(--blue);
  padding: 4px 0 4px 24px;
  margin-left: 0;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.article-prose blockquote cite {
  display: block;
  margin-top: 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-3);
  font-style: normal;
}

/* Callout box */
.callout {
  padding: 22px 24px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(30,157,255,0.04), rgba(30,157,255,0.01));
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
}
.callout .icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: rgba(30,157,255,0.12);
  color: var(--blue-2);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.callout h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}
.callout p { font-size: 14.5px !important; line-height: 1.55; color: var(--ink-2); margin-top: 0 !important; }

/* Stats inline */
.article-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.article-stats > div {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}
.article-stats > div:last-child { border-right: none; }
.article-stats .big {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.article-stats .big em {
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.article-stats .lbl {
  font-size: 12.5px;
  color: var(--ink-3);
  margin-top: 6px;
  line-height: 1.4;
}
@media (max-width: 700px) {
  .article-stats { grid-template-columns: 1fr; }
  .article-stats > div { border-right: none; border-bottom: 1px solid var(--line); }
  .article-stats > div:last-child { border-bottom: none; }
}

/* Inline diagram block */
.article-diagram {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
}
.article-diagram .caption {
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* Article CTA card (mid-article or end) */
.article-cta {
  margin-top: 48px;
  padding: 36px;
  background: linear-gradient(135deg, #F4F7FB 0%, #E8EFF7 100%);
  border-radius: 16px;
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.article-cta h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.015em;
}
.article-cta p { color: var(--ink-2); margin-top: 8px; font-size: 14.5px; line-height: 1.55; }
@media (max-width: 720px) {
  .article-cta { grid-template-columns: 1fr; }
}

/* Related articles */
.article-related {
  border-top: 1px solid var(--line);
  padding-block: clamp(48px, 6vw, 80px);
  background: var(--surface);
}
.article-related h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.015em;
  margin-bottom: 32px;
}

/* ---------- Education hub ---------- */
.edu-hero {
  padding: clamp(140px, 12vw, 180px) 0 clamp(40px, 5vw, 64px);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(30,157,255,0.08), transparent 60%),
    linear-gradient(180deg, #FFFFFF 0%, #F4F7FB 100%);
  border-bottom: 1px solid var(--line);
}

.edu-tracks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
@media (max-width: 980px) { .edu-tracks { grid-template-columns: 1fr; } }

.edu-track {
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  display: flex; flex-direction: column;
  gap: 20px;
  transition: all .25s ease;
}
.edu-track:hover {
  border-color: rgba(30,157,255,0.4);
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -20px rgba(15,30,60,0.10);
}
.edu-track .level {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-2);
}
.edu-track h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.015em;
  line-height: 1.2;
}
.edu-track p { font-size: 14.5px; color: var(--ink-2); line-height: 1.55; }
.edu-track ol {
  list-style: none;
  display: flex; flex-direction: column;
  gap: 0;
  margin-top: 4px;
}
.edu-track ol li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 12px;
  align-items: center;
  font-size: 14px;
  color: var(--ink);
  transition: color .15s;
}
.edu-track ol li:hover { color: var(--blue-2); }
.edu-track ol li:first-child { border-top: none; }
.edu-track ol li .lnum {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
}
.edu-track ol li .lmin {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
}

.edu-track-cta {
  margin-top: auto;
  padding-top: 16px;
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px;
  color: var(--blue-2);
  font-weight: 500;
}

/* Glossary */
.glossary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  margin-top: 48px;
}
@media (max-width: 720px) { .glossary { grid-template-columns: 1fr; } }
.glossary-item {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.glossary-item:nth-child(2n) { border-right: none; }
@media (max-width: 720px) {
  .glossary-item { border-right: none; }
}
.glossary-item dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.005em;
  margin-bottom: 6px;
}
.glossary-item dt .abbr {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--blue-2);
  margin-left: 8px;
  letter-spacing: 0.04em;
}
.glossary-item dd {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.55;
}

/* Educational diagram band */
.edu-diagram {
  margin-top: 64px;
  padding: 48px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.edu-diagram h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.015em;
  margin-bottom: 32px;
}

/* ============== Education tease (homepage) ============== */
.edu-tease-wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: clamp(36px, 5vw, 64px);
  background: linear-gradient(135deg, #F4F7FB 0%, #E8EFF7 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
}
@media (max-width: 880px) {
  .edu-tease-wrap { grid-template-columns: 1fr; gap: 28px; }
}
.edu-tease-cards { display: grid; gap: 10px; }
.edu-tease-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: all .2s;
}
.edu-tease-card:hover {
  border-color: rgba(30,157,255,0.35);
  transform: translateX(2px);
  box-shadow: 0 12px 28px -16px rgba(15,30,60,0.12);
}
.edu-tease-num {
  width: 36px; height: 36px; border-radius: 10px;
  background: rgba(30,157,255,0.12);
  color: var(--blue-2);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
}
.edu-tease-lvl { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-2); }
.edu-tease-t { font-family: var(--font-display); font-weight: 600; font-size: 16px; margin-top: 2px; }
.edu-tease-n { font-size: 12px; color: var(--ink-3); margin-top: 2px; }

/* ============== Homepage Latest insights tease ============== */
.home-insights-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
}
@media (max-width: 980px) { .home-insights-grid { grid-template-columns: 1fr; } }
.home-insights-list {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}


/* ---------- Mobile polish for insights ---------- */
@media (max-width: 640px) {
  .insights-hero { padding-block: 110px 32px; }
  .ins-nav-inner { padding-block: 12px; }
  .art-grid { gap: 18px; }
  .art-default .art-img-sm svg { height: 160px !important; }
  .article-prose { font-size: 16px; }
  .article-prose blockquote { font-size: 18px; padding-left: 18px; }
  .article-cta { padding: 24px; }
  .edu-track { padding: 24px; }
  .edu-diagram { padding: 28px; margin-top: 40px; }
  .newsletter { padding: 28px; }
}