/*
 * CommunityMap.ca — site styles.
 *
 * Self-contained, no external fonts, no JS. Designed to load
 * in one HTTP round trip after the HTML so Lighthouse Performance
 * + SEO scores stay perfect. The visual language echoes map.ca
 * (amber/ink/cream) without depending on map.ca's design tokens.
 */

:root {
  --ink: #1f1d1a;
  --ink-soft: #5b574f;
  --ink-line: rgba(31, 29, 26, 0.12);
  --cream: #fbf6e8;
  --paper: #ffffff;
  --paper-elev: #f8f5ec;
  --amber: #c8a24c;
  --amber-soft: #e9d59c;
  --red: #c0392b;
  --green: #2f6f43;
  --link: #1f4a8a;
  --link-hover: #143769;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --shadow-1: 0 1px 2px rgba(31, 29, 26, 0.05),
    0 2px 6px rgba(31, 29, 26, 0.06);
  --shadow-2: 0 4px 14px rgba(31, 29, 26, 0.08);
  --content-max: 72ch;
  --site-max: 72rem;
}

* { box-sizing: border-box; }

html { color-scheme: light; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    'Helvetica Neue', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover { color: var(--link-hover); }

.container {
  max-width: var(--site-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Site header ────────────────────────────────────────── */

.site-header {
  background: var(--cream);
  border-bottom: 1px solid var(--ink-line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(1.05);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.site-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  text-decoration: none;
  font-weight: 700;
  color: var(--ink);
}
.site-brand:hover { color: var(--ink); }

.site-brand__mark {
  color: var(--amber);
  font-size: 1.3rem;
  line-height: 1;
}

.site-brand__word {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.site-nav {
  display: inline-flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}
.site-nav a {
  color: var(--ink);
  text-decoration: none;
}
.site-nav a:hover { color: var(--ink-soft); text-decoration: underline; }

/* ── Hero ──────────────────────────────────────────────── */

.hero {
  padding: 5rem 1.5rem 4rem;
  text-align: left;
  max-width: var(--site-max);
}

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin: 0 0 0.75rem;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  color: var(--ink);
  max-width: 18ch;
}

.hero__lede {
  font-size: 1.15rem;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 1.75rem;
  max-width: 60ch;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease,
    color 120ms ease, transform 80ms ease;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--red);
  color: white;
  border-color: var(--red);
}
.btn--primary:hover { background: #a82e22; color: white; }

.btn--ghost {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--ink-line);
}
.btn--ghost:hover {
  background: var(--paper-elev);
  border-color: rgba(31, 29, 26, 0.35);
  color: var(--ink);
}

/* ── Pillars row (home) ───────────────────────────────── */

.pillars {
  display: grid;
  gap: 1.25rem;
  padding: 2rem 1.5rem 3rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.pillar {
  background: var(--paper);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-1);
}

.pillar__title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.pillar__body {
  margin: 0;
  font-size: 0.97rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* ── Parts list (home) ────────────────────────────────── */

.parts { padding: 1.5rem 1.5rem 4rem; }

.section-title {
  margin: 0 0 1.25rem;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

.parts__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.parts__item { }

.parts__link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  background: var(--paper);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 120ms ease, transform 120ms ease,
    box-shadow 120ms ease;
}
.parts__link:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
  color: var(--ink);
}

.parts__num {
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  flex-shrink: 0;
  background: var(--amber-soft);
  color: var(--ink);
  font-weight: 700;
  border-radius: 50%;
  font-size: 0.85rem;
}

.parts__copy { display: flex; flex-direction: column; }
.parts__title { font-weight: 600; }
.parts__meta { font-size: 0.85rem; color: var(--ink-soft); }

/* ── TOC ──────────────────────────────────────────────── */

.toc { padding: 2.5rem 1.5rem 4rem; }
.toc__head { margin-bottom: 2rem; }
.toc__head h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0.25rem 0 0.5rem;
  letter-spacing: -0.02em;
}
.toc__lede {
  margin: 0;
  color: var(--ink-soft);
}

.toc-part {
  margin: 2rem 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--ink-line);
}
.toc-part:first-of-type { border-top: 0; padding-top: 0; }

.toc-part__title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
}
.toc-part__title a {
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}
.toc-part__title a:hover { color: var(--ink-soft); }

.toc-part__num {
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.toc-chapters {
  list-style: none;
  padding: 0 0 0 0.75rem;
  margin: 0;
  border-left: 2px solid var(--ink-line);
}
.toc-chapters li { margin: 0.45rem 0; }
.toc-chapters a {
  text-decoration: none;
  color: var(--ink);
  display: inline-flex;
  gap: 0.4rem;
  padding: 0.1rem 0;
}
.toc-chapters a:hover {
  color: var(--ink-soft);
  text-decoration: underline;
}
.toc-chapters__num { color: var(--ink-soft); font-variant-numeric: tabular-nums; }

/* ── Part page ────────────────────────────────────────── */

.part { padding: 2.5rem 1.5rem 4rem; }
.part__head { margin-bottom: 1.5rem; }
.part__head h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0.25rem 0 0.5rem;
  letter-spacing: -0.02em;
}
.part__meta { color: var(--ink-soft); margin: 0; }

.part-chapters {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.6rem;
}

.part-chapters__link {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem;
  background: var(--paper);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 120ms ease, transform 120ms ease,
    box-shadow 120ms ease;
}
.part-chapters__link:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
  color: var(--ink);
}

.part-chapters__num {
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  flex-shrink: 0;
  background: var(--paper-elev);
  border: 1px solid var(--ink-line);
  color: var(--ink);
  font-weight: 700;
  border-radius: 50%;
  font-size: 0.95rem;
}

.part-chapters__body { display: flex; flex-direction: column; gap: 0.2rem; }
.part-chapters__title { font-weight: 700; letter-spacing: -0.01em; }
.part-chapters__summary {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* ── Chapter page ────────────────────────────────────── */

.chapter { padding: 2rem 1.5rem 4rem; }
.chapter__head { margin-bottom: 1.5rem; padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--ink-line); }
.chapter__title {
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  margin: 0.25rem 0 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.chapter__num {
  color: var(--amber);
  font-weight: 700;
  letter-spacing: 0;
  margin-right: 0.4rem;
}
.chapter__summary {
  margin: 0.25rem 0 0.75rem;
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: var(--content-max);
}
.chapter__meta {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.chapter__body { max-width: var(--content-max); }

/* ── Prose ────────────────────────────────────────────── */

.prose {
  font-size: 1rem;
  line-height: 1.7;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4 {
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-top: 2rem;
  margin-bottom: 0.65rem;
}
.prose h2 { font-size: 1.55rem; }
.prose h3 { font-size: 1.2rem; }
.prose h4 { font-size: 1.05rem; }
.prose p { margin: 0 0 1rem; }
.prose ul, .prose ol { margin: 0 0 1rem 1.4rem; padding: 0; }
.prose li { margin: 0.3rem 0; }
.prose blockquote {
  margin: 1.25rem 0;
  padding: 0.5rem 1rem;
  border-left: 4px solid var(--amber);
  background: var(--paper-elev);
  color: var(--ink-soft);
  font-style: italic;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.prose code {
  background: var(--paper-elev);
  border: 1px solid var(--ink-line);
  border-radius: 6px;
  padding: 0.05rem 0.35rem;
  font-size: 0.92em;
  font-family: ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
}
.prose pre {
  background: var(--paper-elev);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  overflow-x: auto;
  font-size: 0.92rem;
  line-height: 1.5;
}
.prose pre code {
  background: transparent;
  border: 0;
  padding: 0;
}
.prose hr {
  border: 0;
  border-top: 1px solid var(--ink-line);
  margin: 2rem 0;
}

/* ── Page nav (prev / next) ──────────────────────────── */

.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ink-line);
}

.page-nav__prev,
.page-nav__next {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  background: var(--paper);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 120ms ease, transform 120ms ease;
}
.page-nav__prev:hover,
.page-nav__next:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
  color: var(--ink);
}
.page-nav__next { text-align: right; }

.page-nav__dir {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.page-nav__title { font-weight: 600; }

/* ── Breadcrumbs ─────────────────────────────────────── */

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}
.breadcrumbs a {
  color: var(--ink-soft);
  text-decoration: none;
}
.breadcrumbs a:hover { color: var(--ink); }
.breadcrumbs > * { margin: 0 0.35rem; }
.breadcrumbs > *:first-child { margin-left: 0; }

/* ── About ───────────────────────────────────────────── */

.about { padding: 2.5rem 1.5rem 4rem; max-width: 60rem; }
.about__head h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0.25rem 0 1.25rem;
  letter-spacing: -0.02em;
}
.about pre { white-space: pre-wrap; word-break: break-word; }

/* ── Site footer ─────────────────────────────────────── */

.site-footer {
  margin-top: 4rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--ink-line);
  background: var(--paper-elev);
}
.site-footer__line {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
}
.site-footer__line--muted { color: var(--ink-soft); font-size: 0.85rem; }

/* ── Reduced motion ──────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ── Small screens ───────────────────────────────────── */

@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero { padding: 3rem 1.5rem 2.5rem; }
  .page-nav { grid-template-columns: 1fr; }
  .page-nav__next { text-align: left; }
}