/* PubLedge — styles.css
   Civic aesthetic inspired by commerce.utah.gov/ai/:
   deep navy primary, crimson accent, warm off-white backgrounds,
   serif headings for gravitas, sans-serif body, generous whitespace. */

:root {
  --navy: #0f2e5c;
  --navy-hover: #1a4180;
  --navy-ink: #0a1f3e;
  --crimson: #a31f34;
  --crimson-hover: #8b1a2c;
  --gold: #b8860b;

  --bg: #fbfaf7;
  --bg-alt: #f3efe7;
  --panel: #ffffff;
  --text: #14181f;
  --muted: #5a6572;
  --border: #e4e2dc;
  --border-strong: #c9c5bb;
  --link: #1e4c8a;
  --link-hover: #0f2e5c;
  --highlight-soft: #fff6d6;

  --shadow-sm: 0 1px 2px rgba(10, 31, 62, 0.06);
  --shadow-md: 0 4px 14px rgba(10, 31, 62, 0.08);
  --radius: 6px;
  --radius-lg: 10px;

  --font-sans: "Source Sans 3", "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --content-max: 1120px;
  --prose-max: 720px;
}

/* Dark mode: preserved but muted — civic sites are rarely dark by default.
   Users who want it get it; default stays light. */
@media (prefers-color-scheme: dark) {
  :root:not(.light-mode) {
    --bg: #0c111c;
    --bg-alt: #121826;
    --panel: #161d2d;
    --text: #e9ecf2;
    --muted: #9aa3b2;
    --border: #1f2a3d;
    --border-strong: #2d3a52;
    --link: #7fb0e8;
    --link-hover: #b4d0ee;
    --navy: #1a4180;
    --navy-hover: #2a5aa8;
    --highlight-soft: #2a2010;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--navy-ink);
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
}
@media (prefers-color-scheme: dark) { :root:not(.light-mode) h1, :root:not(.light-mode) h2, :root:not(.light-mode) h3, :root:not(.light-mode) h4 { color: #e9ecf2; } }
h1 { font-size: clamp(1.85rem, 3.5vw, 2.6rem); line-height: 1.15; letter-spacing: -0.025em; }
h2 { font-size: clamp(1.35rem, 2.5vw, 1.7rem); line-height: 1.25; letter-spacing: -0.015em; margin-top: 1.6em; }
h3 { font-size: 1.15rem; margin-top: 1.4em; }
h4 { font-size: 1rem; margin-top: 1.2em; }
h1, h2, h3, h4 { scroll-margin-top: 5.5rem; }

p { margin: 0 0 1em; }
small { color: var(--muted); }

a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
a:hover { color: var(--link-hover); border-bottom-color: currentColor; }
a:focus-visible { outline: 2px solid var(--crimson); outline-offset: 2px; border-radius: 2px; }

/* WCAG 1.4.1 — links in prose must be distinguishable without relying on
   color alone. Underline every link inside main and footer. */
main a, footer a, .prose a, article a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
main a:hover, footer a:hover, .prose a:hover, article a:hover {
  text-decoration-thickness: 2px;
}
/* Suppress underline for links that wrap cards, buttons, nav, or badges. */
.site-nav-link, .bridge-cta, .card-title a, .skip-link,
.stat-card a, .obligation-card > a, .search-results a,
.compare-list a, .breadcrumb a { text-decoration: none !important; }

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--bg-alt);
  padding: 0.12em 0.35em;
  border-radius: 3px;
  color: var(--navy-ink);
}
@media (prefers-color-scheme: dark) { :root:not(.light-mode) code { color: #cbd5e1; } }
pre {
  font-family: var(--font-mono);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1em;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.5;
}
pre code { background: transparent; padding: 0; }

blockquote {
  margin: 1.2em 0;
  padding: 0.6em 1.2em;
  border-left: 3px solid var(--crimson);
  background: var(--bg-alt);
  color: var(--text);
  font-style: italic;
  border-radius: 0 var(--radius) var(--radius) 0;
}

hr { border: 0; border-top: 1px solid var(--border); margin: 2em 0; }

ul, ol { padding-left: 1.4em; margin: 0 0 1em; }
li { margin: 0.3em 0; }

/* Layout */
.skip-link {
  position: absolute;
  top: -40px; left: 0;
  background: var(--navy);
  color: #fff;
  padding: 8px 16px;
  z-index: 1000;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

main, .container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 2.4rem 1.5rem 4rem;
}

/* Prose-heavy pages (protocol, prior-art) narrow the column */
main > h1 + p,
main > section,
main > article {
  max-width: var(--prose-max);
}
main > h1,
main > p,
main > section > p,
main > section > ul,
main > section > ol,
main > section > pre,
main > section > blockquote,
main > article > p,
main > article > ul,
main > article > ol,
main > article > pre,
main > article > blockquote {
  max-width: var(--prose-max);
}

/* Site header — navy bar, white text, crimson top border.
   Single-row flex layout (pattern from every-ai-law): title on the
   left, primary nav, then search + theme toggle on the right.
   Sticky so it stays reachable on long pages. Content horizontally
   capped via padding that collapses to 1.5rem below --content-max. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  padding: 0.6rem max(1.5rem, calc((100% - var(--content-max)) / 2 + 1.5rem));
  background: var(--navy);
  color: #fff;
  border-top: 3px solid var(--crimson);
  box-shadow: var(--shadow-md);
}
.site-header h1 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin: 0;
  letter-spacing: 0.01em;
  flex: 0 0 auto;
}
.site-header h1 a { color: #fff; border-bottom: 0; }
.site-header h1 a:hover { color: #f6e3b4; }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem;
  align-items: center;
}
.site-nav-link {
  color: #e6ecf5;
  padding: 0.45rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius);
  border-bottom: 0;
  transition: color 0.15s ease, background 0.15s ease;
}
.site-nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.site-nav-link.active {
  color: #fff;
  background: var(--navy-hover);
  box-shadow: inset 0 -2px 0 var(--crimson);
}

/* Search + theme toggle cluster, pushed to the far right on desktop. */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  padding: 0;
  background: transparent;
}

.theme-toggle, .hamburger-btn {
  background: transparent;
  color: #e6ecf5;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
}
.theme-toggle:hover, .hamburger-btn:hover { background: rgba(255,255,255,0.1); }

/* Search */
.site-search { position: relative; flex: 1; max-width: 320px; }
.search-input {
  width: 100%;
  padding: 0.45rem 0.8rem;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.9rem;
}
.search-input::placeholder { color: rgba(255,255,255,0.6); }
.search-input:focus {
  outline: 0;
  background: #fff;
  color: var(--text);
  border-color: var(--gold);
}
.search-input:focus::placeholder { color: var(--muted); }
.search-results {
  position: absolute;
  top: 100%; left: 0; right: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 4px;
  box-shadow: var(--shadow-md);
  max-height: 60vh;
  overflow-y: auto;
  z-index: 40;
}
.search-results:empty { display: none; }
.search-results a {
  display: block;
  padding: 0.55rem 0.85rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  border-left: none; border-right: none; border-top: none;
}
.search-results a:last-child { border-bottom: none; }
.search-results a:hover { background: var(--bg-alt); color: var(--navy); }
.search-results .search-type {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-right: 0.5em;
}

/* Footer — three-column secondary nav sits between main and site-footer.
   Pattern borrowed from every-ai-law so copyright + disclaimer stay
   compact while secondary links get room to breathe. */
.footer-nav {
  max-width: var(--content-max);
  margin: 3rem auto 0;
  padding: 2rem 1.5rem 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem 3rem;
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
}
.footer-section { display: flex; flex-direction: column; gap: 0.25rem; }
.footer-section strong {
  color: var(--navy-ink);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  letter-spacing: 0.01em;
}
@media (prefers-color-scheme: dark) { :root:not(.light-mode) .footer-section strong { color: #e9ecf2; } }
.footer-section a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.15rem 0;
  border-bottom: 0;
}
.footer-section a:hover { color: var(--link); text-decoration: underline; text-underline-offset: 2px; }

/* Site footer — minimal copyright + disclaimer strip below footer-nav. */
footer, .site-footer {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}
.footer-nav + footer,
.footer-nav + .site-footer { border-top: 0; margin-top: 0; }
footer p, .site-footer p { margin: 0.25rem 0; }
.footer-meta { color: var(--muted); }
.footer-meta a { color: var(--link); }
.footer-built { font-size: 0.78rem; opacity: 0.75; }
footer a, .site-footer a { color: var(--link); }

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.obligation-card, .stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.2rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  box-shadow: var(--shadow-sm);
}
.obligation-card:hover, .stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.card-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}
.card-title a { color: var(--navy-ink); border-bottom: 0; }
.card-title a:hover { color: var(--crimson); }
@media (prefers-color-scheme: dark) {
  :root:not(.light-mode) .card-title a { color: #e9ecf2; }
  :root:not(.light-mode) .card-title a:hover { color: #f6c6ce; }
}
.card-description { color: var(--muted); font-size: 0.92rem; margin-bottom: 0.75rem; }
.card-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; font-size: 0.82rem; color: var(--muted); }
.meta-item { padding: 0.12rem 0.55rem; background: var(--bg-alt); border-radius: 999px; }

/* Stat cards (home page totals) */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.stat-card { text-align: center; }
.stat-number {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy-ink);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
@media (prefers-color-scheme: dark) {
  :root:not(.light-mode) .stat-number { color: #e9ecf2; }
}
.stat-label { display: block; color: var(--muted); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; margin-top: 0.3rem; }

/* Badges */
.group-badge, .status-badge {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.group-badge { color: #fff; }
.group-badge.requirement { background: var(--navy); }
.group-badge.restriction { background: var(--crimson); }
.group-badge.permission { background: #1f7a43; }
.status-badge { border: 1px solid var(--border-strong); background: var(--panel); color: var(--text); }
/* Override the per-page inline CSS that KaC emits from project.yml.
   Inline uses solid-color bg + white text that fails WCAG AA at gold.
   !important needed because inline specificity matches ours and
   inline comes later in the cascade. */
.status-badge.draft { background: #fff4cc !important; color: #5a4100 !important; border: 1px solid #d4a017 !important; }
.status-badge.reviewed { background: #e3f4fb !important; color: #0b5a7a !important; border: 1px solid #2196c8 !important; }
.status-badge.published { background: #e6f3ec !important; color: #0d4e2a !important; border: 1px solid #1f7a43 !important; }
.status-badge.superseded { background: var(--bg-alt) !important; color: var(--muted) !important; border: 1px solid var(--border-strong) !important; }

/* Data tables */
.data-table, table {
  width: 100%;
  max-width: var(--prose-max);
  border-collapse: collapse;
  margin: 1.2em 0;
  font-size: 0.93rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
th, td {
  padding: 0.6rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  font-variant-numeric: tabular-nums;
}
th {
  background: var(--bg-alt);
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--navy-ink);
  border-bottom: 2px solid var(--border-strong);
}
@media (prefers-color-scheme: dark) { :root:not(.light-mode) th { color: #e9ecf2; } }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--bg-alt); }

/* Matrix table — wider */
.matrix-table { max-width: none; }
.matrix-table th, .matrix-table td { text-align: center; padding: 0.45rem 0.55rem; font-size: 0.88rem; }
.matrix-row-header { text-align: left !important; font-weight: 600; border-left: 4px solid var(--border-strong); }
.matrix-row-header.group-requirement { border-left-color: var(--navy); }
.matrix-row-header.group-restriction { border-left-color: var(--crimson); }
.matrix-row-header.group-permission { border-left-color: #1f7a43; }
.matrix-cell.covered { background: #e3f1fb; }
.matrix-cell.covered a { color: var(--navy); font-weight: 600; }

/* Template detail pages */
.template-meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1rem;
  margin: 1rem 0 1.8rem;
  padding: 1rem 1.2rem;
  background: var(--bg-alt);
  border-left: 3px solid var(--navy);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.92rem;
}
.template-meta dt { font-weight: 600; color: var(--muted); }
.template-meta dd { margin: 0; }

.template-vars { max-width: var(--prose-max); }
/* Use !important to beat dark-mode :root:not(.light-mode) code rule which
   has higher specificity than plain .template-vars code. */
.template-vars code, code.tpl-var {
  background: #fff6d6 !important;
  color: #4d3600 !important;
  border: 1px solid #c7a82f !important;
  font-weight: 500;
}

/* Bridge page CTAs */
.bridge-cta {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  margin: 0.25rem 0.4rem 0.25rem 0;
  border-bottom: 0;
  transition: background 0.15s ease;
}
.bridge-cta:hover { background: var(--crimson); color: #fff; border-bottom: 0; }

/* Timeline */
.timeline-regulation { font-weight: 600; color: var(--navy); }

/* Breadcrumb */
.breadcrumb { font-size: 0.88rem; color: var(--muted); margin-bottom: 1rem; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--navy); }
.breadcrumb-sep { margin: 0 0.4em; color: var(--border-strong); }

/* Compare lists */
.compare-list { list-style: none; padding: 0; }
.compare-list li { padding: 0.35rem 0.7rem; margin: 0.2rem 0; background: var(--bg-alt); border-radius: var(--radius); }

/* Utility */
.muted { color: var(--muted); }
.text-center { text-align: center; }

/* Desktop: hide hamburger, nav always visible inline. */
.hamburger-btn { display: none; }

/* Responsive */
@media (max-width: 720px) {
  .site-header { gap: 0.5rem; padding: 0.6rem 1rem; }
  .site-header h1 { font-size: 1.2rem; flex: 1 1 auto; }
  .hamburger-btn { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav { order: 3; flex-basis: 100%; flex-direction: column; gap: 0; display: none; padding-top: 0.25rem; border-top: 1px solid rgba(255,255,255,0.12); }
  .site-nav.open { display: flex; }
  .site-nav-link { padding: 0.6rem 0.5rem; font-size: 0.95rem; }
  .site-nav-link.active { box-shadow: inset 3px 0 0 var(--crimson); }
  .header-actions { margin-left: auto; }
  .site-search { max-width: 160px; }
  main, .container { padding: 1.5rem 1rem 3rem; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.25rem; }
  .template-meta { grid-template-columns: 1fr; }
}

/* Print */
@media print {
  .site-header, .site-footer, .site-search, .theme-toggle, .hamburger-btn { display: none; }
  body { background: #fff; color: #000; }
  a { color: #000; text-decoration: underline; }
}