/* Palette drawn from the newt-agent logo: the warm brown-black backdrop and the
   orange body (#d16b21, #ffaa41 highlight). Dark is the default; light is used
   only when the reader's system asks for it. Text pairs are >= 4.5:1 (WCAG AA). */
:root {
  color-scheme: dark;
  --ink: #f4e8da;
  --muted: #cdb8a2;
  --faint: #a08c78;
  --rule: #4b3423;
  --accent: #ffaa41;
  --bg: #1c120c;
  --surface: #2a1b12;
  --code-bg: #33221a;
  --max: 40rem;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --ink: #2b170d;
    --muted: #6b5443;
    --faint: #75604f;
    --rule: #e4d6c4;
    --accent: #a8360a;
    --bg: #fbf6ef;
    --surface: #f3e9dc;
    --code-bg: #f0e4d5;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 1.125rem/1.65 Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  text-rendering: optimizeLegibility;
}

.content { max-width: var(--max); margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }

/* Header / nav */
.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
}
.site-name {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
}
.site-nav { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 0.9rem; }
.site-nav a { color: var(--muted); text-decoration: none; margin-left: 1rem; }
.site-nav a:hover, .site-name:hover { color: var(--accent); }
.site-nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }

/* Links */
a { color: var(--accent); text-underline-offset: 2px; }

/* Typography */
h1, h2, h3 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; line-height: 1.25; }
h1 { font-size: 1.9rem; margin: 0.2rem 0 0.6rem; }
h2 { font-size: 1.35rem; margin-top: 2.2rem; }
p, ul, ol { margin: 0 0 1.15rem; }
blockquote {
  margin: 1.4rem 0;
  padding: 0.2rem 0 0.2rem 1.1rem;
  border-left: 3px solid var(--rule);
  color: var(--muted);
  font-style: italic;
}
hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5rem 0; }
code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
}
pre {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  line-height: 1.45;
}
code { background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; }
pre code { background: none; padding: 0; }

/* Series banner (on each read) */
.series-banner {
  border-left: 3px solid var(--accent);
  background: var(--surface);
  padding: 0.7rem 1rem;
  margin: 0 0 1.6rem;
  border-radius: 0 6px 6px 0;
}
.series-kicker {
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.15rem;
}
.series-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--ink);
}
.series-tagline { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.98rem; }
.series-progress {
  margin: 0.4rem 0 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.8rem;
  color: var(--faint);
}

/* Read */
.read-title { margin-top: 0.2rem; }
.read-dek { font-size: 1.2rem; color: var(--muted); margin: -0.2rem 0 0.4rem; }
.read-meta {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.8rem; letter-spacing: 0.03em; color: var(--faint);
  text-transform: uppercase; margin-bottom: 1.6rem;
}
.read-body p:first-of-type { margin-top: 0; }

.read-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 2.5rem 0 1rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--rule);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.95rem;
}
.read-nav-next { text-align: right; }
.read-nav a { text-decoration: none; }
.back-to-series {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.9rem;
}

/* Series landing */
.series-head { margin-bottom: 1.5rem; }
.series-head h1 { margin: 0.1rem 0 0.4rem; }
.series-head .series-tagline { font-size: 1.15rem; }
.series-intro { color: var(--ink); }
.series-list { list-style: none; padding: 0; margin: 1.5rem 0 0; counter-reset: part; }
.series-list-item {
  counter-increment: part;
  padding: 1rem 0;
  border-top: 1px solid var(--rule);
}
.series-list-item:last-child { border-bottom: 1px solid var(--rule); }
.series-list-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 700; font-size: 1.15rem; text-decoration: none;
}
.series-list-title::before {
  content: counter(part) ". ";
  color: var(--faint);
}
.series-list-dek { display: block; color: var(--muted); margin-top: 0.2rem; }
.series-list-rt {
  display: block; margin-top: 0.25rem; color: var(--faint);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em;
}

/* Home */
.home-intro { margin-bottom: 2.2rem; }
.home-intro h1 { font-size: 2.1rem; margin-bottom: 0.4rem; }
.home-intro p { color: var(--muted); font-size: 1.15rem; }
.series-card { padding: 1.2rem 0; border-top: 1px solid var(--rule); }
.series-card h3 { margin: 0 0 0.3rem; }
.series-card h3 a { text-decoration: none; }
.series-card .tagline { margin: 0 0 0.4rem; }
.series-card .blurb { color: var(--muted); font-size: 1rem; }

/* Footer */
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  border-top: 1px solid var(--rule);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.85rem;
  color: var(--faint);
}
.site-footer a { color: var(--muted); }
.site-footer p { margin: 0.2rem 0; }

@media (max-width: 480px) {
  body { font-size: 1.06rem; }
  .home-intro h1 { font-size: 1.8rem; }
  h1 { font-size: 1.6rem; }
}

/* Tables */
table { border-collapse: collapse; width: 100%; margin: 0 0 1.4rem; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--rule); }
th { color: var(--muted); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; }
/* By-line, AI label, revisions */
.byline { margin: 0.2rem 0 0.2rem; color: var(--muted); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 0.95rem; }
.author-role { color: var(--faint); }
.ai-badge { margin-left: 0.4rem; padding: 0.05rem 0.45rem; border: 1px solid var(--rule); border-radius: 3px; font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; }
.byline-detail { list-style: none; margin: 0 0 1rem; padding: 0; color: var(--faint); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 0.8rem; }
.draft-banner { margin: 0 0 1.2rem; padding: 0.5rem 0.8rem; border-left: 3px solid var(--accent); background: var(--surface); color: var(--muted); font-size: 0.95rem; }
.revisions { margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--rule); font-size: 0.9rem; color: var(--muted); }
.revisions h2 { font-size: 1rem; margin: 0 0 0.5rem; }
.revisions ul { margin: 0; padding-left: 1.1rem; }