/* ─────────────────────────────────────────────────────────────
   field-note.css · GrowthShot.ai blog post template styles
   Shared across blog-dental.html, blog-plumber.html, blog-website.html
   ───────────────────────────────────────────────────────────── */

:root {
  --cream: #F5F1EA;
  --cream-deep: #ECE6DC;
  --cream-card: #FAF7F1;
  --ink: #1A1612;
  --ink-soft: #3D352D;
  --ink-quiet: #6B6157;
  --terracotta: #B85C3C;
  --terracotta-deep: #944729;
  --brass: #A88A4B;
  --brass-soft: #C9AE74;
  --sage: #7A8466;
  --hairline: rgba(26, 22, 18, 0.12);
  --hairline-strong: rgba(26, 22, 18, 0.22);

  --font-serif: 'Newsreader', Georgia, serif;
  --font-sans: 'Public Sans', system-ui, sans-serif;
  --font-mono: 'Space Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(rgba(26, 22, 18, 0.02) 1px, transparent 1px),
    radial-gradient(rgba(26, 22, 18, 0.012) 1px, transparent 1px);
  background-size: 4px 4px, 7px 7px;
  background-position: 0 0, 2px 2px;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* ─── Header ─── */
.site-header {
  border-bottom: 1px solid var(--hairline);
  background: rgba(245, 241, 234, 0.94);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.site-header .inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand { display: flex; align-items: center; gap: 0.7rem; }
.brand-mark { width: 32px; height: 32px; }
.brand-wordmark {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.3rem;
  letter-spacing: -0.012em;
  color: var(--ink);
  display: inline-flex;
  align-items: baseline;
  line-height: 1;
}
.brand-wordmark .wp-ai { color: var(--brass); }
.brand-wordmark .wp-dot {
  display: inline-block;
  width: 0.22em; height: 0.22em;
  background: var(--terracotta);
  border-radius: 50%;
  margin: 0 0.08em 0 0.12em;
  vertical-align: 0.16em;
  flex-shrink: 0;
}
.back-link {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-quiet);
  text-transform: uppercase;
  transition: color 0.2s;
}
.back-link:hover { color: var(--terracotta); }
.btn-header-cta {
  background: var(--ink);
  color: var(--cream);
  padding: 0.55rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: background 0.2s;
}
.btn-header-cta:hover { background: var(--terracotta); }
.header-right { display: flex; align-items: center; gap: 2rem; }

/* ─── Article frame ─── */
.article-frame {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.article-masthead {
  padding: 5rem 0 3rem;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
.article-running {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--brass);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}
.article-running .dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--terracotta);
  display: inline-block;
}
.article-title {
  font-family: var(--font-serif);
  font-variation-settings: "opsz" 72;
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
  color: var(--ink);
  letter-spacing: -0.018em;
  margin-bottom: 1.8rem;
}
.article-title em { color: var(--brass); font-style: italic; font-weight: 400; }
.article-title .accent { color: var(--terracotta); }

.article-standfirst {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.5;
  color: var(--ink-soft);
  padding-left: 1.4rem;
  border-left: 3px solid var(--brass);
  text-align: left;
  max-width: 720px;
  margin: 0 auto 2.4rem;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-quiet);
  text-transform: uppercase;
  padding: 1.4rem 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.article-meta .sep { color: var(--brass); }
.article-meta strong { color: var(--ink); font-weight: 400; }

/* ─── Image figure ─── */
.article-figure {
  margin: 3rem auto;
  max-width: 465px;
}
.article-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--hairline);
}
.article-figure .placeholder {
  background: var(--cream-deep);
  border: 1px solid var(--hairline);
  aspect-ratio: 16 / 8;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.article-figure .placeholder::after {
  content: attr(data-placeholder);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-quiet);
  text-align: center;
  padding: 0 2rem;
}
.article-figure figcaption {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-quiet);
  text-transform: uppercase;
  margin-top: 0.9rem;
  text-align: center;
}

/* ─── Article body ─── */
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 0 4rem;
}
.article-body > * + * { margin-top: 1.4rem; }
.article-body p {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--ink-soft);
  text-wrap: pretty;
}
.article-body p:first-of-type::first-letter {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 3.6rem;
  float: left;
  line-height: 0.95;
  padding: 0.4rem 0.6rem 0 0;
  color: var(--terracotta);
}
.article-body h2 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.6rem;
  line-height: 1.25;
  color: var(--ink);
  letter-spacing: -0.005em;
  margin-top: 3rem;
}
.article-body h2 em { color: var(--brass); font-style: italic; font-weight: 400; }
.article-body h2 + p { margin-top: 0.8rem; }
.article-body .section-number {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--brass);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 3rem;
}
.article-body .section-number .num { color: var(--terracotta); }
.article-body .section-number .rule { flex: 1; height: 1px; background: var(--hairline); max-width: 80px; }
.article-body .section-number + h2 { margin-top: 1rem; }
.article-body strong { font-weight: 500; color: var(--ink); }
.article-body ul, .article-body ol {
  padding-left: 1.4rem;
  color: var(--ink-soft);
}
.article-body ul li, .article-body ol li {
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 0.5rem;
}
.article-body ul li::marker { color: var(--brass); }
.article-body ol li::marker {
  font-family: var(--font-mono);
  color: var(--brass);
  font-size: 0.85rem;
}

/* ─── Pull-out callout ─── */
.callout {
  background: var(--cream-card);
  border-left: 3px solid var(--terracotta);
  padding: 1.6rem 1.8rem;
  margin: 2.4rem 0;
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.45;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.callout .attrib {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--brass);
  text-transform: uppercase;
  font-style: normal;
  margin-top: 0.8rem;
}

/* ─── Math table ─── */
.math-table {
  margin: 2rem 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.math-table .row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.6rem;
  padding: 0.95rem 0.4rem;
  border-bottom: 1px solid var(--hairline);
  align-items: baseline;
}
.math-table .row:last-child { border-bottom: none; }
.math-table .row.total { background: var(--cream-card); padding-left: 0.8rem; padding-right: 0.8rem; }
.math-table .label {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 400;
  color: var(--ink-soft);
}
.math-table .value {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: -0.005em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.math-table .row.total .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass);
}
.math-table .row.total .value {
  font-style: italic;
  color: var(--terracotta);
  font-size: 1.6rem;
}
.math-table-footnote {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  font-style: italic;
  color: var(--ink-quiet);
  margin-top: 0.8rem;
}

/* ─── Fix list ─── */
.fixes {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}
.fixes li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.8rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--hairline);
  align-items: start;
}
.fixes li:last-child { border-bottom: 1px solid var(--hairline); }
.fixes .ix {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--terracotta);
  padding-top: 0.5rem;
}
.fixes h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.2rem;
  color: var(--ink);
  margin-bottom: 0.5rem;
  letter-spacing: -0.005em;
}
.fixes p {
  font-size: 1rem;
  color: var(--ink-soft);
  font-weight: 400;
  line-height: 1.65;
  margin: 0;
}
.fixes p::first-letter {
  font-size: inherit;
  font-family: inherit;
  float: none;
  color: inherit;
  padding: 0;
}

/* ─── End-of-article CTA box ─── */
.article-cta {
  background: var(--cream-deep);
  border-radius: 2px;
  padding: 3rem 2.5rem;
  margin: 3rem auto 0;
  max-width: 720px;
  text-align: center;
}
.article-cta .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--terracotta);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.article-cta h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.8rem;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}
.article-cta h3 em { color: var(--brass); font-style: italic; font-weight: 400; }
.article-cta p {
  font-size: 1.02rem;
  color: var(--ink-soft);
  font-weight: 300;
  line-height: 1.65;
  margin-bottom: 1.8rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.btn-primary {
  background: var(--terracotta);
  color: var(--cream);
  padding: 0.95rem 1.9rem;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 2px;
  transition: background 0.2s, transform 0.15s;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  display: inline-block;
}
.btn-primary:hover { background: var(--terracotta-deep); transform: translateY(-1px); }

/* ─── Footnotes ─── */
.article-footnotes {
  max-width: 720px;
  margin: 3.5rem auto 0;
  padding-top: 1.6rem;
  border-top: 1px solid var(--hairline);
}
.article-footnotes h6 {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--brass);
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.article-footnotes ol { list-style: decimal; padding-left: 1.2rem; }
.article-footnotes li {
  font-family: var(--font-sans);
  font-size: 0.86rem;
  color: var(--ink-quiet);
  line-height: 1.55;
  margin-bottom: 0.4rem;
  font-weight: 300;
}
.article-footnotes li::marker { font-family: var(--font-mono); color: var(--brass); }

/* ─── Related ─── */
.related {
  max-width: 1240px;
  margin: 6rem auto 0;
  padding: 4rem 2rem 0;
  border-top: 1px solid var(--hairline);
}
.related-head {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--brass);
  text-transform: uppercase;
  margin-bottom: 1.4rem;
}
.related-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.2;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 2.4rem;
}
.related-title em { color: var(--brass); font-style: italic; font-weight: 400; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.related-card {
  background: var(--cream-card);
  border: 1px solid var(--hairline);
  padding: 2rem 1.8rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.15s;
}
.related-card:hover { border-color: var(--terracotta); transform: translateY(-2px); }
.related-card .meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--brass);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.related-card h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.2rem;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 1rem;
  flex: 1;
}
.related-card .excerpt {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.6;
  font-weight: 300;
  margin-bottom: 1.4rem;
}
.related-card .read {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--terracotta);
  letter-spacing: 0.02em;
}

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 4rem 2rem 2rem;
  background: var(--cream-deep);
  margin-top: 5rem;
}
.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.footer-tagline {
  font-family: var(--font-serif);
  font-weight: 500;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink);
  max-width: 360px;
  line-height: 1.4;
}
.footer-cta-row {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--ink-quiet);
  text-transform: uppercase;
}
.footer-cta-row a:hover { color: var(--terracotta); }
.footer-bottom {
  max-width: 1240px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ink-quiet);
  text-transform: uppercase;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ─── Reading progress ─── */
.read-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--terracotta);
  z-index: 200;
  transition: width 0.1s ease-out;
}

/* ─── Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .read-progress { transition: none; }
}

/* ─── Responsive ─── */
@media (max-width: 720px) {
  .site-header .inner { padding: 0.9rem 1.2rem; gap: 1rem; }
  .brand-mark { width: 28px; height: 28px; }
  .brand-wordmark { font-size: 1.1rem; }
  .header-right { gap: 1rem; }
  .back-link { font-size: 9px; letter-spacing: 0.16em; }
  .btn-header-cta { padding: 0.5rem 0.9rem; font-size: 0.78rem; }
  .article-frame { padding: 0 1.2rem; }
  .article-masthead { padding: 2.8rem 0 1.6rem; }
  .article-running { font-size: 9px; letter-spacing: 0.22em; margin-bottom: 1.4rem; }
  .article-title { font-size: 1.9rem; line-height: 1.12; letter-spacing: -0.012em; margin-bottom: 1.4rem; }
  .article-standfirst { font-size: 1.08rem; padding-left: 1rem; margin-bottom: 1.8rem; }
  .article-meta { font-size: 9px; letter-spacing: 0.16em; gap: 0.9rem; padding: 1rem 0; }
  .article-figure { margin: 2rem auto; }
  .article-figure .placeholder::after { font-size: 8px; letter-spacing: 0.16em; }
  .article-body { padding: 0.4rem 0 2.4rem; }
  .article-body p, .article-body ul li, .article-body ol li { font-size: 1rem; line-height: 1.65; }
  .article-body p:first-of-type::first-letter { font-size: 2.6rem; padding: 0.3rem 0.5rem 0 0; }
  .article-body h2 { font-size: 1.3rem; margin-top: 2rem; }
  .callout { font-size: 1.1rem; padding: 1.2rem 1.4rem; margin: 1.8rem 0; }
  .math-table .row { padding: 0.85rem 0.4rem; }
  .math-table .value { font-size: 1.05rem; }
  .math-table .row.total .value { font-size: 1.4rem; }
  .fixes li { grid-template-columns: 1fr; gap: 0.4rem; padding: 1.2rem 0; }
  .fixes .ix { padding-top: 0; }
  .fixes h4 { font-size: 1.1rem; }
  .article-cta { padding: 2rem 1.4rem; margin-top: 2rem; }
  .article-cta h3 { font-size: 1.4rem; }
  .article-cta .btn-primary { width: 100%; display: block; text-align: center; padding: 1rem; }
  .related { margin-top: 3rem; padding: 2.4rem 1.2rem 0; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}