:root {
    --color-text: #1a1a1a;
    --color-text-light: #4a4a4a;
    --color-accent: #1a7a4a;
    --color-accent-dark: #125c37;
    --color-bg: #ffffff;
    --color-bg-alt: #f0f7f3;
    --color-border: #d8ece1;
    --font-serif: 'Georgia', 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    color: var(--color-text);
    line-height: 1.7;
    background: var(--color-bg);
  }

  .article-wrapper {
    max-width: 760px;
    margin: 0 auto;
    padding: 48px 24px 80px;
  }

  /* Breadcrumb */
  .breadcrumb {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 24px;
  }
  .breadcrumb a {
    color: var(--color-text-light);
    text-decoration: none;
  }
  .breadcrumb a:hover { color: var(--color-accent); }

  /* Header */
  header.article-header {
    margin-bottom: 36px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 28px;
  }

  h1 {
    font-family: var(--font-serif);
    font-size: 2.1rem;
    line-height: 1.25;
    margin: 0 0 16px;
    color: var(--color-text);
    font-weight: 700;
  }

  .article-meta {
    font-size: 14px;
    color: var(--color-text-light);
  }

  .lede {
    font-size: 1.15rem;
    color: var(--color-text-light);
    margin-top: 18px;
    line-height: 1.6;
  }

  /* Body typography */
  article h2 {
    font-family: var(--font-serif);
    font-size: 1.55rem;
    margin: 44px 0 18px;
    color: var(--color-text);
    border-left: 4px solid var(--color-accent);
    padding-left: 14px;
  }

  article p {
    margin: 0 0 18px;
    font-size: 1.02rem;
    color: var(--color-text);
  }

  article strong { color: var(--color-text); }

  article a {
    color: var(--color-accent);
    text-decoration: underline;
  }
  article a:hover { color: var(--color-accent-dark); }

  hr.divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 40px 0;
  }

  /* Three-pillar cards */
  .pillar-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 14px;
    margin: 28px 0 32px;
  }
  .pillar-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: 6px;
    padding: 18px 16px;
    text-align: center;
  }
  .pillar-card .pillar-icon {
    font-size: 1.6rem;
    margin-bottom: 8px;
    display: block;
  }
  .pillar-card .pillar-title {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-accent-dark);
    margin-bottom: 6px;
  }
  .pillar-card .pillar-desc {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
  }

  /* Stat callout box */
  .stat-box {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 20px 24px;
    margin: 24px 0;
  }
  .stat-box p { margin: 0; }

  /* CTA box */
  .cta-box {
    background: var(--color-text);
    color: #fff;
    border-radius: 10px;
    padding: 32px 28px;
    margin: 40px 0;
  }
  .cta-box h3 {
    color: #fff;
    margin-top: 0;
    font-size: 1.3rem;
  }
  .cta-box p {
    color: #d8d6d2;
    margin-bottom: 20px;
  }
  .cta-button {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    text-decoration: none;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: background 0.2s ease;
  }
  .cta-button:hover { background: var(--color-accent-dark); }

  /* Inline closing CTA */
  .inline-cta {
    font-style: italic;
    color: var(--color-text-light);
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
    margin-top: 36px;
  }
  .inline-cta a {
    font-style: normal;
    font-weight: 600;
  }

  /* FAQ */
  .faq-item {
    margin-bottom: 20px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--color-border);
  }
  .faq-item:last-child { border-bottom: none; }
  .faq-question {
    font-weight: 700;
    font-size: 1.02rem;
    margin-bottom: 8px;
    color: var(--color-text);
  }
  .faq-answer {
    color: var(--color-text-light);
    font-size: 0.98rem;
    margin: 0;
  }

  /* Related articles */
  .related-articles {
    margin-top: 50px;
    padding-top: 10px;
  }
  .related-articles h2 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    border-left: 4px solid var(--color-accent);
    padding-left: 14px;
    margin: 0 0 16px;
  }
  .related-articles ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .related-articles li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 0;
  }
  .related-articles li:last-child { border-bottom: none; }
  .related-articles a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.98rem;
  }
  .related-articles a:hover { color: var(--color-accent); }
  .related-articles a::before {
    content: "→ ";
    color: var(--color-accent);
  }

  /* Footer */
  footer.article-footer {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    font-size: 13px;
    color: var(--color-text-light);
  }

  @media (max-width: 600px) {
    .article-wrapper { padding: 32px 16px 60px; }
    h1 { font-size: 1.6rem; }
    article h2 { font-size: 1.3rem; }
    .pillar-grid { grid-template-columns: 1fr; }
  }