/* Navi guides — editorial stylesheet shared by /guides/*.html and /blog/*.html.
 * Matches the app's cream/ink palette so landing → docs feels continuous.
 * Zero dependency on the React app's Tailwind build. */

:root {
  --paper: #FAF6EE;
  --paper-warm: #F5EFE0;
  --paper-deep: #EFE6D2;
  --ink: #0F0E0C;
  --ink-soft: #2A271F;
  --muted: #6B6354;
  --rule: rgba(42, 39, 31, 0.15);
  --rule-soft: rgba(42, 39, 31, 0.08);
  --terracotta: #D4502B;
  --terracotta-deep: #B43E1E;
  --navy: #1B2A4E;
  --butter: #F4D35E;
  --serif: 'Fraunces', 'Times New Roman', Georgia, serif;
  --sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Inter', 'Helvetica Neue', sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--terracotta); text-decoration: none; }
a:hover { color: var(--terracotta-deep); text-decoration: underline; }

/* ─── Layout shell ─────────────────────────────── */

.site-nav {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-nav-brand {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.site-nav-brand:hover { text-decoration: none; color: var(--ink); }
.site-nav-links {
  display: flex;
  gap: 22px;
  font-size: 15px;
}
.site-nav-links a { color: var(--ink-soft); }
.site-nav-cta {
  display: inline-block;
  padding: 9px 18px;
  background: var(--terracotta);
  color: var(--paper);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: 0 1px 2px rgba(180, 62, 30, 0.25);
  transition: background 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}
.site-nav-cta:hover {
  background: var(--terracotta-deep);
  color: var(--paper);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(180, 62, 30, 0.3);
}

main.guide {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 28px 80px;
}

.guide-kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--terracotta);
  font-weight: 500;
  margin-bottom: 18px;
}

h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 48px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--ink);
}

.guide-lede {
  font-family: var(--serif);
  font-weight: 300;
  font-style: italic;
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink-soft);
  margin: 0 0 40px;
}

h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 56px 0 16px;
  color: var(--ink);
}

h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.35;
  margin: 36px 0 10px;
  color: var(--ink);
}

p { margin: 0 0 18px; color: var(--ink-soft); }
ul, ol { margin: 0 0 18px; padding-left: 24px; color: var(--ink-soft); }
li { margin: 0 0 8px; }

strong { color: var(--ink); font-weight: 600; }

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 48px 0;
}

blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--paper-warm);
  border-left: 3px solid var(--terracotta);
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-soft);
}

code {
  font-family: var(--mono);
  font-size: 14px;
  background: var(--paper-deep);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--ink);
}

pre {
  font-family: var(--mono);
  font-size: 14px;
  background: var(--ink);
  color: #F5EFE0;
  padding: 20px 24px;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.5;
  margin: 24px 0;
}
pre code { background: transparent; color: inherit; padding: 0; }

/* ─── Prompt card — copy-paste-ready prompts ─── */
.prompt {
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--terracotta);
  border-radius: 8px;
  padding: 18px 22px;
  margin: 20px 0;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
}
.prompt-label {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 500;
}

/* ─── Callout ─── */
.callout {
  padding: 18px 22px;
  margin: 24px 0;
  background: var(--paper-deep);
  border-radius: 8px;
  font-size: 15px;
  color: var(--ink-soft);
}
.callout strong { color: var(--ink); }

/* ─── Community note ─── */
/* Compact version for top of page, expanded version for bottom. Uses a
 * terracotta left border to visually differentiate from neutral .callout. */
.community-note {
  margin: 28px 0;
  padding: 16px 20px;
  background: #FDF3ED;
  border-left: 3px solid var(--terracotta);
  border-radius: 8px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.community-note strong { color: var(--ink); }
.community-note a { color: var(--terracotta-deep); font-weight: 500; }
.community-note a:hover { color: var(--ink); }
.community-note-bottom { margin: 48px 0 24px; padding: 22px 24px; }
.community-note-bottom p { margin: 0 0 10px; }
.community-note-bottom ul { margin: 8px 0 0; padding-left: 20px; }
.community-note-bottom li { margin-bottom: 4px; }

/* ─── Guide index cards ─── */
.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin: 32px 0 0;
}
.index-card {
  display: block;
  padding: 24px;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-radius: 10px;
  color: var(--ink);
  transition: transform 120ms ease, border-color 120ms ease;
}
.index-card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  border-color: var(--terracotta);
  color: var(--ink);
}
.index-card-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.2;
  margin: 0 0 8px;
  color: var(--ink);
}
.index-card-desc {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
}

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid var(--rule);
  padding: 32px 28px;
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  background: var(--paper-warm);
}
.site-footer a { color: var(--ink-soft); }

/* ─── Mobile ─── */
@media (max-width: 640px) {
  h1 { font-size: 34px; }
  .guide-lede { font-size: 18px; }
  h2 { font-size: 24px; }
  main.guide { padding: 36px 20px 60px; }
  .site-nav-inner { padding: 14px 18px; gap: 10px; flex-wrap: wrap; }
  .site-nav-links { gap: 14px; font-size: 14px; }
  .site-nav-cta { padding: 6px 12px; font-size: 13px; }
}