/* ============================================================
   LdF Strategic Design — Thoughts article styles
   assets/css/thoughts-article.css
   Loaded by every article index.php under thoughts/.
   Depends on ldf-system.css tokens. Do not import standalone.
   ============================================================ */


/* ── Hero ───────────────────────────────────────────────── */

.article-hero {
  padding-top: 146px;
  padding-bottom: 80px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.article-meta-tag {
  font-family: 'Open Sans', sans-serif;
  font-size: 11.6px;
  font-weight: 800;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.article-meta-sep {
  width: 24px;
  height: 1px;
  background: var(--pale);
  flex-shrink: 0;
}

.article-meta-date {
  font-family: 'Open Sans', sans-serif;
  font-size: 12.5px;
  color: var(--mid-grey);
  letter-spacing: 0.04em;
}

.article-hero h1 {
  font-family: 'Libre Baskerville', serif;
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 400;
  color: var(--dark-text);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 860px;
  margin-bottom: 24px;
  text-wrap: pretty;
}

.article-subtitle {
  font-family: 'Libre Baskerville', serif;
  font-size: clamp(17px, 2vw, 21px);
  font-style: italic;
  line-height: 1.5;
  color: var(--mid-grey);
  max-width: 640px;
  margin-bottom: 48px;
}

.article-hero-rule {
  width: 64px;
  height: 2px;
  background: var(--orange);
  margin-bottom: 48px;
}

.article-byline {
  display: flex;
  align-items: center;
  gap: 14px;
}

.article-byline-name {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--body-text);
  letter-spacing: 0.04em;
}

.article-byline-role {
  font-family: 'Open Sans', sans-serif;
  font-size: 12px;
  color: var(--mid-grey);
}


/* ── Opening argument ───────────────────────────────────── */

.article-opening {
  background: var(--linen);
  padding: 80px var(--outer-pad);
}

.article-opening .section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 96px;
  align-items: start;
}

.article-opening h2 {
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.2;
  margin-bottom: 0;
  max-width: 480px;
}

.article-opening-body p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--body-text);
  margin-bottom: 20px;
}

.article-opening-body p:last-child {
  margin-bottom: 0;
}


/* ── Body: sidebar + content grid ───────────────────────── */

.article-body {
  padding: 96px var(--outer-pad);
}

.article-body .section-inner {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  align-items: start;
}


/* ── Sidebar TOC ─────────────────────────────────────────── */

.article-toc {
  position: sticky;
  top: 120px;
}

.article-toc-label {
  font-family: 'Open Sans', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: var(--pale);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 20px;
  display: block;
}

.article-toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: toc-counter;
}

.article-toc ol li {
  counter-increment: toc-counter;
  border-top: 1px solid var(--divider);
}

.article-toc ol li:last-child {
  border-bottom: 1px solid var(--divider);
}

.article-toc ol li a {
  display: block;
  font-family: 'Open Sans', sans-serif;
  font-size: 14px;
  line-height: 1.4;
  color: var(--mid-grey);
  text-decoration: none;
  padding: 10px 0 10px 20px;
  position: relative;
  transition: color 0.2s;
}

.article-toc ol li a::before {
  content: counter(toc-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 10px;
  font-size: 14px;
  color: var(--pale);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.article-toc ol li a:hover {
  color: var(--orange);
}


/* ── Article content column ─────────────────────────────── */

.article-content {
  max-width: 720px;
}

.article-content .article-section {
  margin-bottom: 72px;
}

.article-content .article-section:last-child {
  margin-bottom: 0;
}

.article-section-num {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
  font-weight: 800;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 12px;
  display: block;
}

.article-content h2 {
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 700;
  color: var(--dark-text);
  line-height: 1.2;
  margin-bottom: 28px;
}

.article-content h3 {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  font-weight: 800;
  font-style: normal;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 12px;
  margin-top: 40px;
}

.article-content h3:first-child {
  margin-top: 0;
}

.article-content p {
  font-size: 19px;
  line-height: 1.8;
  color: var(--body-text);
  margin-bottom: 20px;
  max-width: none;
}

.article-content p:last-child {
  margin-bottom: 0;
}

.article-divider {
  border: none;
  border-top: 1px solid var(--divider);
  margin: 72px 0;
}


/* ── Callout interrupt ──────────────────────────────────── */

.article-callout {
  background: var(--charcoal);
  padding: 36px 40px;
  margin: 40px 0;
}

.article-callout p {
  font-family: 'Libre Baskerville', serif;
  font-size: 20px;
  font-style: italic;
  line-height: 1.5;
  color: var(--linen);
  margin: 0;
}


/* ── Claim block ─────────────────────────────────────────── */

.claim-block {
  border-left: 2px solid var(--orange);
  padding: 24px 28px;
  margin: 36px 0;
  background: rgba(255, 90, 0, 0.035);
}

.claim-block-num {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  font-weight: 800;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 10px;
  display: block;
}

.claim-block p {
  font-family: 'Libre Baskerville', serif;
  font-size: 20px;
  font-style: italic;
  line-height: 1.55;
  color: var(--dark-text);
  margin: 0;
}


/* ── Domain grid (N-S-B) ────────────────────────────────── */

.domain-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--pale);
  margin: 36px 0;
}

.domain-cell {
  background: var(--warm-white);
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  align-items: start;
}

.domain-letter {
  font-family: 'Libre Baskerville', serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
  opacity: 0.2;
  padding-top: 4px;
}

.domain-cell-body h3 {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  font-weight: 800;
  font-style: normal;
  color: var(--dark-text);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
  margin-top: 0;
}

.domain-cell-body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mid-grey);
  margin-bottom: 10px;
}

.domain-test {
  font-family: 'Open Sans', sans-serif;
  font-size: 11.6px;
  font-weight: 600;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}


/* ── Problem stack ──────────────────────────────────────── */

.problem-stack {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--pale);
  margin: 36px 0;
}

.problem-item {
  background: var(--linen);
  padding: 28px 32px;
}

.problem-item h3 {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  font-weight: 800;
  font-style: normal;
  color: var(--dark-text);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 12px;
  margin-top: 0;
}

.problem-item p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mid-grey);
  margin: 0;
}

.problem-item p + p {
  margin-top: 12px;
}


/* ── Closing ────────────────────────────────────────────── */

.article-closing {
  background: var(--linen);
  padding: 96px var(--outer-pad);
  border-top: 1px solid var(--divider);
}

.article-closing .section-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 96px;
  align-items: start;
}

.article-conclusion h2 {
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 32px;
}

.article-conclusion p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--body-text);
  margin-bottom: 20px;
  max-width: none;
}

.article-conclusion p:last-child {
  margin-bottom: 0;
}

.article-final {
  font-family: 'Libre Baskerville', serif;
  font-size: 20px;
  font-style: italic;
  line-height: 1.55;
  color: var(--dark-text);
  border-left: 2px solid var(--orange);
  padding-left: 24px;
  margin-top: 40px;
}


/* ── CTA card ───────────────────────────────────────────── */

.article-cta-card {
  background: var(--charcoal);
  padding: 40px 36px;
  position: sticky;
  top: 120px;
}

.article-cta-card-label {
  font-family: 'Open Sans', sans-serif;
  font-size: 11px;
  font-weight: 800;
  color: var(--orange-on-dark);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 20px;
  display: block;
}

.article-cta-card h3 {
  font-family: 'Libre Baskerville', serif;
  font-size: 20px;
  font-weight: 700;
  font-style: normal;
  color: var(--linen);
  line-height: 1.3;
  margin-bottom: 16px;
}

.article-cta-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin-bottom: 28px;
  max-width: none;
}

.article-cta-card .cta-btn {
  width: 100%;
  text-align: center;
  display: block;
  font-size: 14px;
  padding: 14px 24px;
}


/* ── Back link ──────────────────────────────────────────── */

.article-back {
  padding: 40px var(--outer-pad);
  border-top: 1px solid var(--divider);
}

.article-back .section-inner {
  display: flex;
  align-items: center;
}

.article-back-link {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--mid-grey);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: color 0.2s;
}

.article-back-link:hover {
  color: var(--orange);
}

.article-back-arrow {
  display: inline-block;
  width: 16px;
  height: 1px;
  background: currentColor;
  position: relative;
  flex-shrink: 0;
}

.article-back-arrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-left: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg);
}


/* ── Footnotes ─────────────────────────────────────────── */

.article-footnotes {
  margin-top: 56px;
}

.article-footnotes-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  counter-reset: none;
}

.article-footnotes-list li {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mid-grey);
  padding-left: 20px;
  position: relative;
  margin-bottom: 16px;
}

.article-footnotes-list li::before {
  content: counter(list-item) '.';
  position: absolute;
  left: 0;
  color: var(--mid-grey);
  font-size: 12px;
}

.article-footnote-ref {
  color: var(--orange);
  text-decoration: none;
  font-size: 11px;
  vertical-align: super;
  line-height: 0;
  margin-left: 1px;
}

.article-footnote-ref:hover {
  text-decoration: underline;
}

.article-footnote-back {
  color: var(--orange);
  text-decoration: none;
  margin-left: 4px;
}

.article-footnote-back:hover {
  text-decoration: underline;
}


/* ── Responsive ─────────────────────────────────────────── */

@media (max-width: 900px) {
  .article-closing .section-inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .article-cta-card {
    position: static;
  }

  .article-body .section-inner {
    grid-template-columns: 1fr;
  }

  .article-toc {
    display: none;
  }
}

@media (max-width: 768px) {
  .article-hero {
    padding-top: 96px;
    padding-bottom: 56px;
  }

  .article-opening {
    padding: 56px var(--outer-pad-mob);
  }

  .article-opening .section-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .article-body {
    padding: 64px var(--outer-pad-mob);
  }

  .article-content p {
    font-size: 17px;
  }

  .article-callout {
    padding: 28px 24px;
  }

  .article-callout p {
    font-size: 17px;
  }

  .domain-cell {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .domain-letter {
    font-size: 28px;
  }

  .article-closing {
    padding: 64px var(--outer-pad-mob);
  }

  .article-conclusion p {
    font-size: 16px;
  }

  .article-back {
    padding: 32px var(--outer-pad-mob);
  }
}