/* ============ Research / Article ============ */
[data-root="../"] .nav-links a { }  /* ensures selector specificity works with data-root */

.research-hero {
  padding: 180px 0 80px;
  border-bottom: 1px solid var(--rule);
}
.research-hero .kicker {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 32px;
  display: flex; gap: 18px; flex-wrap: wrap; align-items:center;
}
.research-hero .kicker .dot { width:6px; height:6px; border-radius:50%; background: var(--accent); display:inline-block; }
.research-hero .title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.2rem, 5.6vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 0 0 28px;
  max-width: 22ch;
}
.research-hero .title .b { font-weight: 700; }
.research-hero .lede { font-size: 1.25rem; line-height: 1.55; color: var(--ink-dim); max-width: 60ch; }
.research-hero .meta {
  margin-top: 56px;
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 32px;
  border-top: 1px solid var(--rule); padding-top: 32px;
}
@media (max-width: 720px) { .research-hero .meta { grid-template-columns: 1fr 1fr; } }
.research-hero .meta .label {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .28em; text-transform: uppercase; color: var(--ink-faint);
  margin-bottom: 8px;
}
.research-hero .meta .val { font-family: var(--font-display); font-weight: 300; font-size: 1.1rem; color: var(--ink); }

/* Article shell */
.article {
  padding: 80px 0 40px;
}
.article-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) { .article-wrap { padding: 0 22px; } }

.prose { font-size: 1.125rem; line-height: 1.75; color: var(--ink); }
.prose > p { color: var(--ink); margin: 0 0 1.4em; }
.prose > p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-weight: 700;
  float: left;
  font-size: 4.4em;
  line-height: 0.85;
  padding: 0.06em 0.12em 0 0;
  color: var(--accent);
}
.prose h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.9rem;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 2.4em 0 0.8em;
}
.prose h2 .num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .32em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 10px;
}
.prose h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin: 1.8em 0 0.6em;
}
.prose ul { padding-left: 1.2em; margin: 0 0 1.4em; }
.prose ul li { margin-bottom: 0.6em; color: var(--ink-dim); }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--accent); border-bottom: 1px solid var(--rule-strong); }
.prose a:hover { border-bottom-color: var(--accent); }
.prose code {
  font-family: var(--font-mono); font-size: .88em;
  background: var(--bg-elev); padding: 2px 7px; border-radius: 4px;
  border: 1px solid var(--rule);
}

/* Pull quote — big, editorial */
.pullquote {
  margin: 3em -40px;
  padding: 40px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  position: relative;
}
.pullquote::before {
  content: "";
  position: absolute; left: 0; top: 40px;
  width: 48px; height: 1px; background: var(--accent);
}
.pullquote .who {
  display: block;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 400;
}
@media (max-width: 720px) { .pullquote { margin: 2em 0; padding: 28px 0; font-size: 1.3rem; } }

/* Figure / visualization blocks */
.figure {
  margin: 2.4em -40px;
  padding: 0;
}
@media (max-width: 720px) { .figure { margin: 1.8em 0; } }
.figure .viz {
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 40px;
  min-height: 280px;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.figure figcaption {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--accent);
}

/* Callout */
.callout {
  background: var(--bg-elev);
  border-left: 3px solid var(--accent);
  padding: 24px 28px;
  margin: 2em 0;
  font-size: 1rem;
}
.callout .label {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
  display: block;
}
.callout p:last-child { margin-bottom: 0; }

/* Key stat row */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 32px;
  margin: 2em -40px;
  padding: 32px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 720px) { .stat-row { margin: 1.6em 0; grid-template-columns: 1fr; gap: 24px; } }
.stat-row .stat .n {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 2.8rem;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.stat-row .stat .n .b { font-weight: 700; color: var(--accent); }
.stat-row .stat .l {
  display: block; margin-top: 10px;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .22em; text-transform: uppercase; color: var(--ink-faint);
}

/* TOC (sticky on desktop) */
.article-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 80px;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 960px) { .article-layout { grid-template-columns: 1fr; gap: 32px; } }
.toc {
  position: sticky; top: 120px; align-self: start;
  font-family: var(--font-mono);
  font-size: .75rem;
  line-height: 1.9;
  letter-spacing: .08em;
  border-left: 1px solid var(--rule);
  padding-left: 20px;
}
.toc .label {
  font-size: .68rem; letter-spacing: .28em; text-transform: uppercase;
  color: var(--ink-faint); display:block; margin-bottom: 14px;
}
.toc a { color: var(--ink-dim); display: block; padding: 3px 0; border-left: 1px solid transparent; margin-left: -21px; padding-left: 20px; }
.toc a:hover { color: var(--ink); }
.toc a.active { color: var(--accent); border-left-color: var(--accent); }
@media (max-width: 960px) { .toc { position: static; border-left: 0; padding-left: 0; border-top: 1px solid var(--rule); padding-top: 20px; } }

/* Article footer — lead capture */
.article-lead {
  margin: 80px 0 40px;
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 48px;
  position: relative;
  overflow: hidden;
}
@media (max-width: 720px) { .article-lead { padding: 32px 24px; } }
.article-lead::before {
  content: "";
  position: absolute; right: -40px; top: -40px;
  width: 240px; height: 240px;
  background: var(--accent); opacity: 0.06;
  clip-path: polygon(25% 5%, 75% 5%, 100% 50%, 75% 95%, 25% 95%, 0% 50%);
}
.article-lead .kicker { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .32em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.article-lead h3 { font-family: var(--font-display); font-weight: 300; font-size: 1.8rem; line-height: 1.2; margin-bottom: 18px; max-width: 24ch; }
.article-lead h3 .b { font-weight: 700; }
.article-lead p { max-width: 56ch; margin-bottom: 24px; }
.article-lead form { display: flex; gap: 12px; flex-wrap: wrap; }
.article-lead input[type="email"] {
  flex: 1; min-width: 260px;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--rule-strong);
  padding: 14px 16px; font: inherit; border-radius: 3px;
}
.article-lead input[type="email"]:focus { outline: none; border-color: var(--accent); }

/* Related articles */
.related { border-top: 1px solid var(--rule); padding-top: 64px; margin-top: 80px; }
.related .label { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .32em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 32px; display:block; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
@media (max-width: 720px) { .related-grid { grid-template-columns: 1fr; } }
.related-card {
  padding: 28px 0; border-top: 1px solid var(--rule-strong);
  transition: border-color .3s var(--ease);
}
.related-card:hover { border-top-color: var(--accent); }
.related-card .rk { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .28em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 14px; }
.related-card h4 { font-family: var(--font-display); font-weight: 400; font-size: 1.35rem; line-height: 1.3; color: var(--ink); }

/* Research hub card grid */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
@media (max-width: 960px) { .hub-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px) { .hub-grid { grid-template-columns: 1fr; } }
.hub-card {
  padding: 40px 32px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex; flex-direction: column; min-height: 340px;
  transition: background .3s var(--ease);
  cursor: pointer;
  position: relative;
}
.hub-card:hover { background: var(--bg-elev); }
.hub-card .num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .28em;
  color: var(--ink-faint);
}
.hub-card .cat {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  margin-top: 8px;
  color: var(--ink-dim);
}
.hub-card .cat .dot { width:8px; height:8px; border-radius:50%; background: var(--cat-color, var(--accent)); }
.hub-card h3 {
  font-family: var(--font-display); font-weight: 300;
  font-size: 1.55rem; line-height: 1.2; letter-spacing: -0.01em;
  margin-top: auto;
  margin-bottom: 16px;
}
.hub-card p { font-size: .95rem; color: var(--ink-dim); margin: 0; }
.hub-card .read {
  margin-top: 24px; font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .22em; text-transform: uppercase; color: var(--ink-dim);
  display: flex; align-items: center; gap: 10px;
}
.hub-card .read::after { content: "→"; transition: transform .3s var(--ease); }
.hub-card:hover .read::after { transform: translateX(6px); }
.hub-card[data-cat="automation"] { --cat-color: #7BB8E5; }
.hub-card[data-cat="cyber"]      { --cat-color: #8AE0B5; }
.hub-card[data-cat="pq"]         { --cat-color: #C9A8F5; }
.hub-card[data-cat="case"]       { --cat-color: #E5B17B; }

/* Featured article (hub) */
.featured {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  align-items: stretch;
}
@media (max-width: 860px) { .featured { grid-template-columns: 1fr; } }
.featured .copy { padding: 60px 48px; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid var(--rule); }
@media (max-width: 860px) { .featured .copy { padding: 40px 24px; border-right: 0; border-bottom: 1px solid var(--rule); } }
.featured .copy .tag {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .32em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px;
}
.featured .copy h2 { font-family: var(--font-display); font-weight: 300; font-size: clamp(1.8rem, 3.4vw, 2.8rem); line-height: 1.12; letter-spacing: -0.01em; margin-bottom: 20px; }
.featured .copy h2 .b { font-weight: 700; }
.featured .copy p { font-size: 1.05rem; line-height: 1.65; max-width: 48ch; margin-bottom: 28px; }
.featured .copy .read { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .22em; text-transform: uppercase; color: var(--ink); display:inline-flex; align-items:center; gap:12px; border-bottom: 1px solid var(--ink); padding-bottom: 4px; align-self: flex-start; }
.featured .viz-side {
  background: var(--bg-elev);
  min-height: 480px;
  position: relative;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}