/* pub-base.css — shared structural stylesheet for all Lightkeel publications.
   Per-property identity is layered on by the personality CSS variable sheet
   (pub-stackline.css / pub-forge.css / pub-commons.css). */

:root {
  --pub-bg: #fafaf8;
  --pub-surface: #fff;
  --pub-fg: #1a1a1a;
  --pub-fg-soft: #444;
  --pub-muted: #888;
  --pub-border: #e5e5e0;
  --pub-accent: var(--pub-fg);
  --pub-accent-dark: #555;
  --pub-display-font: "Georgia", "Times New Roman", serif;
  --pub-ui-font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --pub-mono-font: "Menlo", "Monaco", monospace;
  --pub-container-max: 720px;
  --pub-article-max: 700px;
  --pub-radius: 4px;
}

/* ─── Reset ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

/* ─── Body ────────────────────────────────────────── */
.pub-body {
  margin: 0;
  font-family: var(--pub-display-font);
  background: var(--pub-bg);
  color: var(--pub-fg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

/* ─── Layout ──────────────────────────────────────── */
.pub-container {
  max-width: var(--pub-container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Header ──────────────────────────────────────── */
.pub-header {
  background: var(--pub-surface);
  border-bottom: 1px solid var(--pub-border);
  padding-top: 24px;
}

.pub-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
}

.pub-wordmark {
  font-family: var(--pub-display-font);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--pub-accent);
  text-decoration: none;
  line-height: 1;
}

.pub-nav {
  display: flex;
  gap: 28px;
}

.pub-nav a {
  font-family: var(--pub-ui-font);
  font-size: 0.875rem;
  font-weight: 500;
  color: #555;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.pub-nav a:hover { color: var(--pub-accent); }

.pub-header-rule {
  height: 3px;
  background: var(--pub-accent);
  max-width: var(--pub-container-max);
  margin: 0 auto;
}

.pub-tagline-row { padding: 10px 0; }

.pub-tagline {
  font-family: var(--pub-ui-font);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--pub-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ─── Main ────────────────────────────────────────── */
.pub-main { padding: 48px 0 80px; }

/* ─── Article List (Index) ────────────────────────── */
.pub-article-list { display: flex; flex-direction: column; }

.pub-article-row {
  padding: 32px 0;
  border-bottom: 1px solid var(--pub-border);
}

.pub-article-row:first-child { border-top: 1px solid var(--pub-border); }

.pub-article-row--featured .pub-article-title { font-size: 1.6rem; }

.pub-date {
  font-family: var(--pub-ui-font);
  font-size: 0.78rem;
  color: var(--pub-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.pub-article-link { text-decoration: none; color: inherit; }
.pub-article-link:hover .pub-article-title { color: var(--pub-accent-dark); }

.pub-article-title {
  font-family: var(--pub-display-font);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 10px;
  color: var(--pub-fg);
  transition: color 0.15s;
}

.pub-article-excerpt {
  font-family: var(--pub-ui-font);
  font-size: 0.93rem;
  color: #555;
  margin: 0 0 14px;
  line-height: 1.55;
}

.pub-read-more {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--pub-accent);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.pub-read-more:hover { text-decoration: underline; }

.pub-empty {
  padding: 80px 0;
  text-align: center;
  color: var(--pub-muted);
  font-family: var(--pub-ui-font);
  font-size: 1rem;
}

/* ─── Article Full Page ───────────────────────────── */
.pub-article-container { max-width: var(--pub-article-max); }

.pub-breadcrumb { margin-bottom: 36px; }

.pub-breadcrumb a {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--pub-muted);
  text-decoration: none;
}

.pub-breadcrumb a:hover { color: var(--pub-accent); }

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

.pub-article-h1 {
  font-family: var(--pub-display-font);
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  color: var(--pub-fg);
}

.pub-article-byline {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  color: var(--pub-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.pub-byline-sep { color: #ccc; }

.pub-article-lede {
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--pub-fg-soft);
  font-style: italic;
  margin: 0;
}

/* ─── Article Body Typography ─────────────────────── */
.pub-article-body {
  font-size: 1.05rem;
  line-height: 1.75;
  color: #222;
}

.pub-article-body h1,
.pub-article-body h2,
.pub-article-body h3,
.pub-article-body h4 {
  font-family: var(--pub-display-font);
  font-weight: 700;
  color: var(--pub-fg);
  margin-top: 2.2em;
  margin-bottom: 0.6em;
  line-height: 1.25;
}

.pub-article-body h2 { font-size: 1.45rem; }
.pub-article-body h3 { font-size: 1.2rem; }
.pub-article-body h4 { font-size: 1rem; }

.pub-article-body p { margin: 0 0 1.4em; }

.pub-article-body a {
  color: var(--pub-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.pub-article-body a:hover { color: var(--pub-accent-dark); }

.pub-article-body ul,
.pub-article-body ol {
  margin: 0 0 1.4em;
  padding-left: 1.6em;
}

.pub-article-body li { margin-bottom: 0.4em; }

.pub-article-body blockquote {
  border-left: 3px solid var(--pub-accent);
  margin: 1.8em 0;
  padding: 0.2em 0 0.2em 1.2em;
  color: #555;
  font-style: italic;
}

.pub-article-body pre {
  background: rgba(0,0,0,0.03);
  border-radius: var(--pub-radius);
  padding: 16px 20px;
  overflow-x: auto;
  font-size: 0.88rem;
  margin: 1.4em 0;
}

.pub-article-body code {
  font-family: var(--pub-mono-font);
  font-size: 0.88em;
  background: rgba(0,0,0,0.04);
  padding: 2px 5px;
  border-radius: 3px;
}

.pub-article-body pre code { background: none; padding: 0; }

.pub-article-body hr {
  border: none;
  border-top: 1px solid var(--pub-border);
  margin: 2em 0;
}

/* Article source/link callout box */
.pub-article-source {
  margin-top: 40px;
  padding: 16px 20px;
  border: 1px solid var(--pub-border);
  border-radius: var(--pub-radius);
  background: var(--pub-bg);
  font-family: var(--pub-ui-font);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pub-source-label { font-weight: 600; color: var(--pub-muted); }

.pub-article-source a {
  color: var(--pub-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.pub-article-source a:hover { color: var(--pub-accent-dark); }

/* ─── About body ──────────────────────────────────── */
.pub-about-body {
  font-family: var(--pub-ui-font);
  font-size: 1rem;
  line-height: 1.7;
  color: #333;
}

/* ─── Footer ──────────────────────────────────────── */
.pub-footer {
  padding: 28px 0;
  margin-top: 48px;
  background: var(--pub-surface);
}

.pub-footer-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.pub-footer-credit {
  margin-left: auto;
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  color: var(--pub-muted);
}

.pub-footer-credit a {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  color: var(--pub-accent);
  text-decoration: none;
}

.pub-footer-credit a:hover { color: var(--pub-accent-dark); text-decoration: underline; }

.pub-footer a {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  color: var(--pub-muted);
  text-decoration: none;
}

.pub-footer a:hover { color: var(--pub-accent); }

/* ─── 404 ─────────────────────────────────────────── */
.pub-404 {
  padding: 80px 0;
  text-align: center;
}

.pub-404 h1 {
  font-family: var(--pub-display-font);
  font-size: 3rem;
  font-weight: 700;
  color: var(--pub-border);
  margin: 0 0 16px;
}

.pub-404 p {
  font-family: var(--pub-ui-font);
  font-size: 1rem;
  color: var(--pub-muted);
  margin: 0 0 24px;
}

.pub-404 a {
  color: var(--pub-accent);
  font-family: var(--pub-ui-font);
  font-size: 0.875rem;
  text-decoration: none;
  font-weight: 500;
}

.pub-404 a:hover { text-decoration: underline; }

/* ─── Responsive ──────────────────────────────────── */
@media (max-width: 600px) {
  .pub-wordmark { font-size: 1.4rem; }
  .pub-nav { gap: 18px; }
  .pub-article-h1 { font-size: 1.6rem; }
  .pub-article-row--featured .pub-article-title { font-size: 1.3rem; }
}

/* ─── Reader Experience (v2) ───────────────────────
   Layers on top of the original index/article layout to give the home and
   supporting pages a real publication feel: hero block with a lead story +
   3 secondary cards, category chip strip, paginated card grid, newsletter
   capture block, pagination control, category and author headers. */

/* Hero */
.pub-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 36px;
  padding: 24px 0 40px;
  border-bottom: 1px solid var(--pub-border);
  margin-bottom: 40px;
}

.pub-hero-primary { min-width: 0; }

.pub-hero-title {
  font-family: var(--pub-display-font);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
  color: var(--pub-fg);
}

.pub-hero-title a { color: inherit; text-decoration: none; }
.pub-hero-title a:hover { color: var(--pub-accent-dark); }

.pub-hero-excerpt {
  font-family: var(--pub-ui-font);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--pub-fg-soft);
  margin: 0 0 14px;
}

.pub-hero-secondary {
  display: flex;
  flex-direction: column;
  gap: 24px;
  border-left: 1px solid var(--pub-border);
  padding-left: 32px;
}

.pub-hero-card {
  border-top: 1px solid var(--pub-border);
  padding-top: 16px;
}

.pub-hero-card:first-child { border-top: none; padding-top: 0; }

.pub-hero-card-title {
  font-family: var(--pub-display-font);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 6px;
  color: var(--pub-fg);
}

.pub-hero-card-title a { color: inherit; text-decoration: none; }
.pub-hero-card-title a:hover { color: var(--pub-accent-dark); }

.pub-hero-card .pub-article-excerpt {
  font-size: 0.86rem;
  margin-bottom: 0;
}

/* Category chip strip */
.pub-cat-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 0;
  margin: 0 0 32px;
  border-top: 1px solid var(--pub-border);
  border-bottom: 1px solid var(--pub-border);
}

.pub-cat-strip-label {
  font-family: var(--pub-ui-font);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pub-muted);
}

.pub-cat-strip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pub-cat-strip-list li { display: inline-flex; align-items: center; gap: 4px; }

.pub-cat-chip {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--pub-fg-soft);
  text-decoration: none;
  padding: 4px 12px;
  border: 1px solid var(--pub-border);
  border-radius: 999px;
  background: var(--pub-surface);
  transition: all 0.15s;
}

.pub-cat-chip:hover {
  border-color: var(--pub-accent);
  color: var(--pub-accent-dark);
}

.pub-cat-chip--active {
  background: var(--pub-accent);
  color: var(--pub-surface);
  border-color: var(--pub-accent);
}

.pub-cat-count {
  font-family: var(--pub-ui-font);
  font-size: 0.72rem;
  color: var(--pub-muted);
}

/* Card variant of article rows in recent grid / category / author pages */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.pub-article-row--card {
  padding: 22px;
  border: 1px solid var(--pub-border);
  border-radius: 4px;
  background: var(--pub-surface);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow 0.15s, transform 0.15s;
}

.pub-article-row--card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
  transform: translateY(-1px);
}

.pub-article-row--card .pub-article-title {
  font-size: 1.1rem;
  margin: 0;
}

.pub-article-row--card .pub-article-excerpt {
  font-size: 0.86rem;
  margin-bottom: 0;
  flex-grow: 1;
}

.pub-article-row--card .pub-read-more {
  margin-top: auto;
  align-self: flex-start;
}

.pub-article-byline-inline {
  font-family: var(--pub-ui-font);
  font-size: 0.78rem;
  color: var(--pub-muted);
  margin: 0;
}

.pub-article-byline-inline a {
  color: var(--pub-fg-soft);
  text-decoration: none;
  font-weight: 500;
}

.pub-article-byline-inline a:hover { color: var(--pub-accent); text-decoration: underline; }

/* Pill: renders next to article meta */
.pub-cat-pill {
  font-family: var(--pub-ui-font);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pub-accent);
  text-decoration: none;
  padding: 2px 8px;
  border: 1px solid var(--pub-border);
  border-radius: 3px;
  margin-left: 8px;
}

.pub-cat-pill:hover {
  background: var(--pub-accent);
  color: var(--pub-surface);
}

/* Section headers + subhead */
.pub-section { margin: 48px 0; }

.pub-section-title,
.pub-section-h1 {
  font-family: var(--pub-display-font);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--pub-border);
  color: var(--pub-fg);
}

.pub-section-more {
  margin-top: 32px;
  text-align: center;
}

/* Pagination control */
.pub-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 40px 0 16px;
  padding: 20px 0;
  border-top: 1px solid var(--pub-border);
}

.pub-pagination-link {
  font-family: var(--pub-ui-font);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--pub-accent);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.pub-pagination-link:hover { text-decoration: underline; }

.pub-pagination-link--disabled {
  color: var(--pub-muted);
  opacity: 0.5;
  cursor: not-allowed;
}

.pub-pagination-status {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  color: var(--pub-muted);
}

/* Newsletter block */
.pub-newsletter {
  margin: 56px 0 24px;
  padding: 32px 28px;
  border: 1px solid var(--pub-border);
  border-radius: 4px;
  background: var(--pub-surface);
}

.pub-newsletter-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: center;
}

.pub-newsletter-title {
  font-family: var(--pub-display-font);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--pub-fg);
}

.pub-newsletter-sub {
  font-family: var(--pub-ui-font);
  font-size: 0.92rem;
  color: var(--pub-fg-soft);
  margin: 0;
  line-height: 1.5;
}

.pub-newsletter-form { display: flex; flex-direction: column; gap: 6px; }

.pub-newsletter-label {
  font-family: var(--pub-ui-font);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pub-muted);
}

.pub-newsletter-row {
  display: flex;
  gap: 8px;
}

.pub-newsletter-input {
  flex: 1;
  font-family: var(--pub-ui-font);
  font-size: 0.92rem;
  padding: 10px 14px;
  border: 1px solid var(--pub-border);
  border-radius: 3px;
  background: var(--pub-bg);
  color: var(--pub-fg);
}

.pub-newsletter-input:focus {
  outline: none;
  border-color: var(--pub-accent);
}

.pub-newsletter-button {
  font-family: var(--pub-ui-font);
  font-size: 0.86rem;
  font-weight: 600;
  padding: 10px 18px;
  background: var(--pub-accent);
  color: var(--pub-surface);
  border: 1px solid var(--pub-accent);
  border-radius: 3px;
  cursor: pointer;
  letter-spacing: 0.02em;
}

.pub-newsletter-button:hover { background: var(--pub-accent-dark); border-color: var(--pub-accent-dark); }
.pub-newsletter-button:disabled { opacity: 0.5; cursor: wait; }

.pub-newsletter-status {
  font-family: var(--pub-ui-font);
  font-size: 0.82rem;
  min-height: 1.2em;
  color: var(--pub-muted);
}

.pub-newsletter-status[data-kind="success"] { color: var(--pub-accent); }
.pub-newsletter-status[data-kind="error"] { color: #b03030; }

/* Category / author page headers */
.pub-category-header,
.pub-author-header {
  margin: 0 0 36px;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--pub-border);
}

.pub-category-eyebrow,
.pub-author-eyebrow {
  font-family: var(--pub-ui-font);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pub-muted);
  display: block;
  margin-bottom: 8px;
}

.pub-category-subhead,
.pub-author-count,
.pub-author-site {
  font-family: var(--pub-ui-font);
  font-size: 0.92rem;
  color: var(--pub-fg-soft);
  margin: 4px 0 0;
}

.pub-author-site a {
  color: var(--pub-accent);
  text-decoration: none;
  font-weight: 500;
}

.pub-author-site a:hover { text-decoration: underline; }

/* Responsive for v2 blocks */
@media (max-width: 720px) {
  .pub-hero {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pub-hero-title { font-size: 1.8rem; }
  .pub-hero-secondary {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--pub-border);
    padding-top: 24px;
  }
  .pub-newsletter-inner { grid-template-columns: 1fr; }
  .pub-newsletter-row { flex-direction: column; }
  .pub-newsletter-button { width: 100%; }
  .pub-grid { grid-template-columns: 1fr; }
  .pub-cat-strip-label { display: none; }
}