.article-header {
  width: min(calc(100% - 40px), 980px);
  margin: 0 auto;
  padding: 105px 0 70px;
}

.article-header h1 {
  max-width: 960px;
  margin-bottom: 28px;
  font-size: clamp(3rem, 7vw, 6.25rem);
}

.article-subtitle {
  max-width: 820px;
  margin-bottom: 28px;
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.3;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.article-meta span:not(:last-child)::after {
  margin-left: 18px;
  color: var(--border);
  content: "•";
}

.article-summary {
  width: min(calc(100% - 40px), 980px);
  margin: 0 auto;
  padding: 42px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 5px;
}

.article-summary h2 {
  margin-bottom: 18px;
  font-size: 1.7rem;
}

.article-summary p {
  max-width: 820px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.article-body {
  width: min(calc(100% - 40px), 820px);
  margin: 0 auto;
  padding: 85px 0 120px;
}

.article-body > p,
.article-body li {
  color: #303a34;
  font-size: 1.08rem;
}

.article-body > p {
  margin-bottom: 25px;
}

.article-body h2 {
  margin: 78px 0 26px;
  font-size: clamp(2rem, 4.5vw, 3.35rem);
  line-height: 1.08;
}

.article-body h3 {
  margin: 42px 0 16px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  font-weight: 500;
  line-height: 1.2;
}

.article-body ul,
.article-body ol {
  margin: 22px 0 30px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 9px;
}

.article-body blockquote {
  margin: 38px 0;
  padding: 0 0 0 26px;
  border-left: 3px solid var(--accent);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  line-height: 1.35;
}

.article-body a {
  color: var(--accent);
  text-underline-offset: 3px;
}

.article-callout {
  margin: 42px 0;
  padding: 34px;
  background: var(--text);
  color: white;
  border-radius: 5px;
}

.article-callout p {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.8vw, 1.95rem);
  line-height: 1.35;
}

.definition-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 28px 0 38px;
}

.definition-card {
  padding: 25px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 5px;
}

.definition-card h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.definition-card p {
  margin: 0;
  color: var(--muted);
}

.condition-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 32px 0 42px;
}

.condition-card {
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 5px;
}

.condition-number {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.condition-card h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

.condition-card p {
  margin: 0;
  color: var(--muted);
}

.process-model {
  margin: 34px 0 44px;
  counter-reset: process-stage;
}

.process-stage {
  position: relative;
  margin-bottom: 16px;
  padding: 28px 28px 28px 78px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 5px;
  counter-increment: process-stage;
}

.process-stage::before {
  position: absolute;
  top: 27px;
  left: 27px;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 800;
  content: "0" counter(process-stage);
}

.process-stage h3 {
  margin: 0 0 12px;
  font-size: 1.45rem;
}

.process-stage p,
.process-stage li {
  color: var(--muted);
}

.process-stage ul {
  margin-bottom: 0;
}

.proposition {
  margin: 0 0 18px;
  padding: 24px 26px;
  border-left: 3px solid var(--accent);
  background: var(--surface);
}

.proposition h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.proposition p {
  margin: 0;
  color: var(--muted);
}

.review-note {
  margin-top: 90px;
  padding-top: 42px;
  border-top: 1px solid var(--border);
}

.review-note h2 {
  margin-top: 0;
  font-size: 2rem;
}

.review-note p {
  color: var(--muted);
  font-size: 0.98rem;
}

.reference-list {
  margin-top: 28px;
}

.reference-list p {
  margin-bottom: 18px;
  padding-left: 28px;
  color: var(--muted);
  font-size: 0.94rem;
  text-indent: -28px;
}

.article-backlink {
  width: min(calc(100% - 40px), 820px);
  margin: -65px auto 90px;
}

.article-backlink a {
  color: var(--accent);
  font-weight: 700;
  text-underline-offset: 4px;
}

@media (max-width: 800px) {
  .article-header {
    padding: 80px 0 50px;
  }

  .article-meta {
    display: block;
  }

  .article-meta span {
    display: block;
    margin-bottom: 4px;
  }

  .article-meta span::after {
    display: none;
  }

  .article-summary {
    padding: 28px;
  }

  .article-body {
    padding: 60px 0 95px;
  }

  .article-body h2 {
    margin-top: 58px;
  }

  .definition-list,
  .condition-grid {
    grid-template-columns: 1fr;
  }

  .process-stage {
    padding: 66px 24px 24px;
  }

  .process-stage::before {
    top: 24px;
    left: 24px;
  }
}

/* Article 02 publication additions */
.article-topic {
  margin: 0.8rem 0 0;
  font-size: 0.94rem;
  color: var(--muted);
}

.article-topic a,
.article-meta a {
  color: var(--accent);
  font-weight: 700;
}

.article-hero-figure {
  margin: 0 auto 2.4rem;
  max-width: 940px;
}

.article-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px;
  border: 1px solid rgba(116, 136, 142, 0.24);
  box-shadow: 0 18px 50px rgba(14, 43, 53, 0.12);
}

.reference-list {
  border-top: 1px solid rgba(116, 136, 142, 0.3);
  padding-top: 1.2rem;
}

.reference-list p {
  font-size: 0.94rem;
  overflow-wrap: anywhere;
}

.definition-card h3 a {
  color: inherit;
}