/* Styles for server-generated standalone article pages (blog/{slug}.html) */

*, *::before { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg-page); color: var(--fg-primary); overflow-x: hidden;
       font-family: var(--font-sans); -webkit-font-smoothing: antialiased; }
::selection { background: var(--w20); color: var(--w100); }

/* ── Nav ── */
.art-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 40px;
  background: var(--scrim55); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--w5);
}
.art-nav-brand {
  display: flex; align-items: center; gap: 9px;
  text-decoration: none; color: var(--w100);
  font-family: var(--font-sans); font-weight: 700; font-size: 20px;
  letter-spacing: -0.03em;
}
.art-nav-dot {
  width: 16px; height: 16px; border-radius: 50%; flex-shrink: 0;
  background: radial-gradient(circle at 30% 30%, var(--w100) 0%, var(--w40) 40%, transparent 70%);
  opacity: 0.7;
}
.art-nav-back {
  font-family: var(--font-sans); font-size: 13px;
  color: var(--w55); text-decoration: none; letter-spacing: 0.04em;
  transition: color 0.2s;
}
.art-nav-back:hover { color: var(--w100); }
/* .art-lang-sw removed — the language switcher now uses the shared
   .haiq-lang-sw partial defined in css/main.css. See generateHtml in
   server.js and components/nav.jsx — both surfaces emit the same
   markup. */

/* ── Content wrapper ── */
.art-wrap { padding-top: 80px; }

/* ── Header ── */
.art-header {
  padding: 80px 40px 48px;
  max-width: 1080px; margin: 0 auto;
  text-align: center;
}
.art-tag {
  display: inline-block; margin-bottom: 24px;
  padding: 4px 12px; border-radius: 100px;
  background: var(--w6); border: 1px solid var(--w12);
  font-family: var(--font-sans); font-size: 10px; font-weight: 500;
  color: var(--w100); letter-spacing: 0.2em; text-transform: uppercase;
}
.art-header h1 {
  font-family: var(--font-sans); font-weight: 700;
  font-size: clamp(32px, 5vw, 60px); line-height: 1.15;
  letter-spacing: -0.03em; color: var(--w100); margin: 0 0 20px;
}
.art-sub {
  font-family: var(--font-sans); font-style: normal; font-weight: 400;
  font-size: 18px; line-height: 1.65; color: var(--w60);
  letter-spacing: -0.01em;
  margin: 0 0 24px; max-width: 640px; margin-inline: auto;
}
.art-meta {
  display: flex; justify-content: center; align-items: center;
  gap: 10px; flex-wrap: wrap;
  font-family: var(--font-sans); font-size: 12px;
  color: var(--w45); letter-spacing: 0.07em; text-transform: uppercase;
}
.art-dot { opacity: 0.4; }

/* ── Article body ── */
.art-body {
  max-width: 1080px; margin: 0 auto;
  padding: 0 40px 100px;
}
.art-body p {
  font-family: var(--font-sans); font-size: 17px; line-height: 1.85;
  color: var(--w78); margin: 0 0 28px;
}
.art-body p:last-child { margin-bottom: 0; }

/* ── Footer ── */
.art-footer {
  padding: 32px 40px; border-top: 1px solid var(--w5);
  text-align: center;
  font-family: var(--font-sans); font-size: 12px; color: var(--w35);
}

/* ── Responsive ── */
@media (max-width: 1080px) {
  .art-nav { padding: 14px 20px; }
  .art-header { padding: 60px 24px 36px; }
  .art-sub { font-size: 15px; }
  .art-body { padding: 0 24px 60px; }
  .art-body p { font-size: 16px; line-height: 1.75; }
  .art-footer { padding: 24px; }
}

/* ── Bottom-of-article partials — CTA + author card ──
   Live OUTSIDE .art-body so they're not affected by the article-body
   token overrides (dark palette, Playfair display font). Used on
   every generated article page, appended by generateHtml(). */
.art-cta {
  max-width: 760px;
  margin: 48px auto 32px;
  padding: 40px 32px;
  background: var(--s2);
  border: 1px solid var(--w10);
  border-radius: 16px;
  text-align: center;
  color: var(--w65);
}
.art-cta h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--w100);
  margin: 0 0 12px;
}
.art-cta p {
  font-size: 15px;
  line-height: 1.6;
  margin: 0 auto 24px;
  max-width: 480px;
}
.art-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--w100);
  color: var(--k);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.art-cta-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 30px var(--w10);
}

.art-author-card {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 760px;
  margin: 0 auto 60px;
  padding: 24px 28px;
  background: var(--s2);
  border: 1px solid var(--w6);
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s;
}
.art-author-card:hover {
  border-color: var(--w18);
  transform: translateY(-2px);
}
.art-author-card-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--w8);
}
.art-author-card-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #4A3AFF, #7B68EE);
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 26px;
  color: #FFFFFF;
}
.art-author-card-info { flex: 1; min-width: 0; }
.art-author-card-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--w100);
  margin: 0 0 4px;
}
.art-author-card-bio {
  font-size: 13px;
  line-height: 1.5;
  color: var(--w55);
  margin: 0;
}
@media (max-width: 640px) {
  .art-author-card { flex-direction: column; text-align: center; }
}

/* ── Author page bits ── */
.art-author-avatar {
  width: 120px; height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 24px;
  display: block;
  border: 2px solid var(--w8);
}
.art-author-job { color: var(--w65); font-size: 15px; margin: 0 0 12px; }
.art-author-social { display: flex; gap: 14px; margin: 20px 0 0; justify-content: center; }
.art-author-social a {
  color: var(--w55);
  transition: color 0.2s;
  display: inline-flex;
  padding: 8px;
  border-radius: 999px;
  background: var(--w4);
}
.art-author-social a:hover { color: var(--w100); background: var(--w10); }
.art-author-list { list-style: none; padding: 0; margin: 24px 0 0; }
.art-author-list li { padding: 12px 0; border-bottom: 1px solid var(--w6); }
.art-author-list li a { color: var(--w85); text-decoration: none; }
.art-author-list li a:hover { color: var(--w100); text-decoration: underline; }

/* ==========================================================================
   Article-body internal styles — extracted from per-article inline <style>.
   Scoped under `.art-body` so its custom-property overrides and resets do
   not leak into the shell (art-nav, art-header, art-footer).
   ========================================================================== */

.art-body {
  --bg: #050505;
  --bg-card: #0D0D0D;
  --bg-elevated: #141414;
  --bg-code: #1A1A1A;
  --border: rgba(255,255,255,0.06);
  --border-accent: rgba(255,255,255,0.12);
  --text: #F0EDE6;
  --text-muted: rgba(255,255,255,0.55);
  --text-dim: rgba(255,255,255,0.3);
  --accent: #FFFFFF;
  --green: #34D399;
  --amber: #FBBF24;
  --red: #F87171;
  --blue: #60A5FA;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}

/* Light-theme article-body palette. Only overrides the scoped tokens above,
   so every rule downstream (article-container, callouts, code blocks,
   stats-row, cta-box, author-box, etc.) repaints automatically. */
html[data-theme="light"] .art-body {
  --bg: #EFEDE7;
  --bg-card: #FFFFFF;
  --bg-elevated: #F7F6F2;
  --bg-code: #F0EEE8;
  --border: rgba(16,16,20,0.10);
  --border-accent: rgba(16,16,20,0.17);
  --text: #101014;
  --text-muted: rgba(16,16,20,0.60);
  --text-dim: rgba(16,16,20,0.40);
  --accent: #101014;
  --green: #0E9F52;
  --amber: #B45309;
  --red: #B91C1C;
  --blue: #1D4ED8;
}

.art-body .article-container { max-width: 760px; margin: 0 auto; padding: 0 24px; }

.art-body .article-hero {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--border);
}
.art-body .article-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
.art-body .article-tag {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
}
.art-body .article-date  { font-size: 13px; color: var(--text-dim); }
.art-body .article-reading { font-size: 13px; color: var(--text-dim); }
.art-body .article-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
}
.art-body .article-hero h1 em { font-style: italic; color: var(--text); }
.art-body .article-lead { font-size: 19px; line-height: 1.7; color: var(--text-muted); max-width: 640px; }

.art-body .toc {
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}
.art-body .toc-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.art-body .toc ol { list-style: none; counter-reset: toc; padding-left: 0; }
.art-body .toc li { counter-increment: toc; margin-bottom: 8px; padding: 0; }
.art-body .toc li::before { content: none; }
.art-body .toc li a {
  font-size: 15px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.art-body .toc li a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  min-width: 20px;
}
.art-body .toc li a:hover { color: var(--accent); }

.art-body .article-body { padding-bottom: 60px; }

.art-body .article-body h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin: 64px 0 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.art-body .article-body h2 em { font-style: italic; }
.art-body .article-body h3 {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 600;
  margin: 40px 0 16px;
  color: var(--text);
}
.art-body .article-body p { margin-bottom: 20px; color: var(--text-muted); }
.art-body .article-body p strong { color: var(--text); font-weight: 600; }
.art-body .article-body a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--border-accent);
  transition: text-decoration-color 0.3s;
}
.art-body .article-body a:hover { text-decoration-color: var(--accent); }

.art-body .callout {
  padding: 24px 28px;
  background: var(--bg-elevated);
  border-left: 3px solid var(--green);
  border-radius: 0 12px 12px 0;
  margin: 32px 0;
}
.art-body .callout.warning { border-left-color: var(--amber); }
.art-body .callout.info    { border-left-color: var(--blue);  }
.art-body .callout p { margin-bottom: 0; font-size: 15px; line-height: 1.7; }
.art-body .callout-title {
  font-weight: 600;
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  display: block;
}

.art-body .table-wrapper {
  overflow-x: auto;
  margin: 32px 0;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.art-body table { width: 100%; border-collapse: collapse; font-size: 14px; }
.art-body thead { background: var(--bg-elevated); }
.art-body th {
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.art-body td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: top;
}
.art-body tr:last-child td { border-bottom: none; }
.art-body td strong { color: var(--text); }

.art-body .badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
}
.art-body .badge-green { background: rgba(52,211,153,0.12); color: var(--green); }
.art-body .badge-amber { background: rgba(251,191,36,0.12); color: var(--amber); }
.art-body .badge-red   { background: rgba(248,113,113,0.12); color: var(--red);   }
.art-body .badge-blue  { background: rgba(96,165,250,0.12); color: var(--blue);  }

.art-body .workflow-visual {
  margin: 40px 0;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow-x: auto;
}
.art-body .workflow-steps { display: flex; align-items: center; gap: 0; min-width: 600px; }
.art-body .wf-node {
  flex-shrink: 0;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  text-align: center;
  min-width: 110px;
}
.art-body .wf-node-icon  { font-size: 20px; margin-bottom: 4px; }
.art-body .wf-node-label { font-size: 11px; font-weight: 500; color: var(--text-muted); line-height: 1.3; }
.art-body .wf-arrow      { flex-shrink: 0; width: 32px; text-align: center; color: var(--text-dim); font-size: 14px; }

.art-body .stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 40px 0;
}
.art-body .stat-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
}
.art-body .stat-number {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}
.art-body .stat-label { font-size: 12px; color: var(--text-dim); line-height: 1.4; }

.art-body .code-block {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
}
.art-body .code-block code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
}

.art-body .article-body ul,
.art-body .article-body ol {
  margin: 0 0 24px 0;
  padding-left: 0;
  list-style: none;
}
.art-body .article-body li {
  padding: 6px 0 6px 24px;
  position: relative;
  color: var(--text-muted);
}
.art-body .article-body li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-dim);
}

.art-body .cta-box {
  margin: 48px 0;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 16px;
  text-align: center;
}
.art-body .cta-box h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.art-body .cta-box p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 24px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.art-body .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, #4A3AFF, #7B68EE);
  color: var(--accent);
  border: none;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
}
.art-body .cta-btn:hover { transform: scale(1.03); box-shadow: 0 8px 30px var(--w10); }

.art-body .author-box {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  margin: 48px 0;
}
.art-body .author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4A3AFF, #7B68EE);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: white;
  flex-shrink: 0;
}
.art-body .author-info { flex: 1; }
.art-body .author-name { font-weight: 600; font-size: 16px; margin-bottom: 4px; }
.art-body .author-bio  { font-size: 13px; color: var(--text-dim); line-height: 1.5; }

@media (max-width: 640px) {
  .art-body .stats-row { grid-template-columns: 1fr; }
  .art-body .article-meta { flex-wrap: wrap; gap: 8px; }
  .art-body .author-box   { flex-direction: column; text-align: center; }
}