.article-hero h1 {
  max-width: 15ch;
  font-size: clamp(2.85rem, 5.2vw, 5rem);
}

.article-hero .hero-lead { max-width: 60ch; }

.article-meta {
  display: flex;
  margin: 0 0 24px;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--ink-muted-on-deep);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.article-meta span + span { position: relative; }
.article-meta span + span::before {
  position: absolute;
  top: .68em;
  left: -11px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--mint);
  content: "";
}

.reader-map { padding: clamp(24px, 3vw, 36px); }
.reader-map ol { display: grid; margin: 0; padding: 0; counter-reset: path-step; list-style: none; }
.reader-map li {
  position: relative;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid rgba(207, 225, 244, .16);
  counter-increment: path-step;
}
.reader-map li:last-child { border-bottom: 1px solid rgba(207, 225, 244, .16); }
.reader-map li::before {
  display: flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(93, 253, 189, .5);
  border-radius: 50%;
  color: var(--mint);
  content: counter(path-step, decimal-leading-zero);
  font-size: .67rem;
  font-weight: 800;
}
.reader-map strong { display: block; color: var(--white); font-size: .94rem; }
.reader-map small { display: block; color: var(--ink-muted-on-deep); font-size: .77rem; line-height: 1.45; }
.reader-map .map-result {
  margin: 22px 0 0;
  color: var(--white);
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.45;
}
.hero-summary.reader-map::after {
  border-bottom-color: var(--mint);
  border-left-color: var(--mint);
}
.article-main { padding: clamp(70px, 8vw, 116px) 0; }
.article-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 860px);
  gap: clamp(48px, 7vw, 92px);
  align-items: start;
  justify-content: center;
}

.article-toc {
  position: sticky;
  top: 112px;
  padding-top: 18px;
  border-top: 2px solid var(--navy);
}
.article-toc > strong {
  display: block;
  margin-bottom: 13px;
  color: var(--navy);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.article-toc nav { display: grid; }
.article-toc a {
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: .83rem;
  font-weight: 650;
  line-height: 1.35;
  text-decoration: none;
}
.article-toc a:hover { color: var(--blue); }

.article-content { min-width: 0; }
.article-section {
  padding: 0 0 clamp(58px, 7vw, 88px);
  scroll-margin-top: 108px;
}
.article-section + .article-section {
  padding-top: clamp(58px, 7vw, 88px);
  border-top: 1px solid var(--line);
}
.article-section > h2,
.article-section > h3,
.article-section > p,
.article-section > ul,
.article-section > ol:not(.growth-path),
.article-section > .answer-box,
.article-section > .source-note { max-width: 720px; }
.article-section h2 {
  max-width: 18ch;
  font-size: clamp(2rem, 3.3vw, 3.25rem);
}
.article-section h3 {
  max-width: 25ch;
  margin-top: 38px;
  font-size: clamp(1.35rem, 2.1vw, 1.8rem);
}
.article-section p { color: var(--ink-prose); }
.article-section a:not(.button) { color: var(--blue); font-weight: 700; }

.answer-box {
  margin-bottom: 34px;
  padding: clamp(25px, 4vw, 38px);
  border-left: 4px solid var(--navy);
  border-radius: 0 20px 20px 0;
  background: var(--pale-blue);
}
.answer-box p:last-child { margin-bottom: 0; }
.answer-box strong { color: var(--navy); }

.growth-path {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 40px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  list-style: none;
}
.growth-path li { min-height: 245px; padding: 28px 22px; border-right: 1px solid var(--line); }
.growth-path li:last-child { border-right: 0; }
.growth-path span {
  display: block;
  margin-bottom: 42px;
  color: var(--navy);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
}
.growth-path strong { display: block; margin-bottom: 10px; color: var(--navy); font-size: 1.08rem; line-height: 1.25; }
.growth-path p { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.55; }

.impact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 36px;
  border-top: 1px solid var(--line-strong);
}
.impact-card {
  min-height: 260px;
  padding: clamp(26px, 4vw, 38px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.impact-card:nth-child(even) { border-right: 0; }
.impact-card h3 { margin-top: 0; }
.impact-card p { margin: 0; color: var(--muted); font-size: .94rem; }

.system-list { margin-top: 34px; border-top: 1px solid var(--line-strong); }
.system-row {
  display: grid;
  grid-template-columns: minmax(180px, .72fr) minmax(0, 1.28fr);
  gap: clamp(28px, 5vw, 56px);
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.system-row h3 { margin: 0; font-size: 1.15rem; }
.system-row p { margin: 0; color: var(--muted); }

.example-box {
  position: relative;
  margin-top: 34px;
  padding: clamp(30px, 5vw, 52px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white);
}
.example-box::before {
  position: absolute;
  top: -9px;
  right: -9px;
  width: 54px;
  height: 54px;
  border-top: 2px solid var(--blue);
  border-right: 2px solid var(--blue);
  content: "";
}
.example-box p:last-child { margin-bottom: 0; }

.comparison-figure {
  margin: 38px 0 34px;
  overflow: hidden;
  border-radius: 20px;
  background: var(--navy-deep);
}
.comparison-figure img { width: 100%; height: auto; }
.comparison-figure figcaption {
  padding: 18px 22px 21px;
  border-top: 1px solid var(--line-dark);
  color: var(--ink-lead-on-deep);
  font-size: .78rem;
  line-height: 1.55;
}

.metric-list { margin-top: 34px; border-top: 2px solid var(--navy); }
.metric-row {
  display: grid;
  grid-template-columns: minmax(190px, .68fr) minmax(0, 1.32fr);
  gap: clamp(28px, 5vw, 58px);
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
}
.metric-row strong { color: var(--navy); }
.metric-row p { margin: 0; color: var(--muted); font-size: .92rem; }

.fit-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 34px; }
.fit-card { padding: clamp(25px, 4vw, 36px); border: 1px solid var(--line); border-radius: 20px; background: var(--white); }
.fit-card h3 { margin-top: 0; }
.fit-card p { margin-bottom: 0; color: var(--muted); font-size: .93rem; }
.fit-card.is-quiet { background: var(--pale-blue); }

.checklist {
  display: grid;
  margin: 34px 0 0;
  padding: 0;
  counter-reset: check;
  list-style: none;
}
.checklist li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 21px 0;
  border-top: 1px solid var(--line);
  counter-increment: check;
}
.checklist li:last-child { border-bottom: 1px solid var(--line); }
.checklist li::before {
  color: var(--navy);
  content: counter(check, decimal-leading-zero);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .1em;
}

.article-faq { display: grid; gap: 10px; margin-top: 34px; }
.article-faq details p { max-width: 690px; }

.source-note {
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .88rem;
}

.author-card {
  display: grid;
  grid-template-columns: 152px minmax(0, 1fr);
  gap: clamp(25px, 4vw, 40px);
  margin-top: 34px;
  padding: clamp(25px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white);
  align-items: center;
}
.author-card img { width: 152px; height: 176px; border-radius: 4px; object-fit: cover; object-position: center 28%; }
.author-card h3 { margin: 0 0 10px; }
.author-card p { margin-bottom: 13px; color: var(--muted); font-size: .92rem; }

.related-guides { padding: clamp(72px, 8vw, 112px) 0; border-top: 1px solid var(--line); background: var(--white); }
.related-head { display: flex; margin-bottom: 40px; align-items: end; justify-content: space-between; gap: 24px; }
.related-head h2 { max-width: 12ch; margin: 0; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.related-card {
  position: relative;
  display: flex;
  min-height: 270px;
  padding: 30px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--off-white);
  transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}
.related-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.related-card h3 { font-size: 1.38rem; }
.related-card p { color: var(--muted); font-size: .9rem; }
.related-card .text-link { margin-top: auto; align-self: flex-start; }
.related-card .text-link::before { position: absolute; inset: 0; content: ""; }

@media (max-width: 1040px) {
  .mobile-nav.is-open { height: calc(100dvh - 76px); }
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { position: static; display: none; }
  .article-content { max-width: 860px; }
}

@media (max-width: 760px) {
  .article-meta { font-size: .7rem; }
  .article-meta span + span::before { display: none; }
  .growth-path { grid-template-columns: 1fr; }
  .growth-path li { min-height: auto; padding: 24px 2px; border-right: 0; border-bottom: 1px solid var(--line); }
  .growth-path li:last-child { border-bottom: 0; }
  .growth-path span { margin-bottom: 12px; }
  .impact-grid, .fit-grid, .related-grid { grid-template-columns: 1fr; }
  .impact-card, .impact-card:nth-child(even) { min-height: auto; border-right: 0; }
  .system-row, .metric-row { grid-template-columns: 1fr; gap: 8px; }
  .author-card { grid-template-columns: 96px 1fr; }
  .author-card img { width: 96px; height: 122px; }
  .related-head { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 440px) {
  .mobile-nav.is-open { height: calc(100dvh - 70px); }
  .author-card { grid-template-columns: 1fr; }
  .author-card img { width: 118px; height: 142px; }
  .example-box::before { right: -4px; }
}

@media print {
  .article-toc, .related-guides { display: none; }
  .article-layout { display: block; }
  .article-section { break-inside: avoid; }
  .comparison-figure { border: 1px solid var(--line); }
}