/* Cairn Post — shared stylesheet */

:root {
  --paper: #ffffff;
  --stone: #f4f5f6;
  --ink: #17181b;
  --ink-soft: #52555c;
  --ink-faint: #878b93;
  --rule: #e0e2e5;
  --carmine: #9b1b30;
  --carmine-deep: #6e1322;
  --carmine-wash: #f7ecee;

  --display: "Bodoni Moda", Georgia, "Times New Roman", serif;
  --text: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --shell: 60rem;
  --measure: 36rem;
  --step: 1.5rem;
}

*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-weight: 380;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

a {
  color: var(--carmine);
  text-decoration: none;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
  border-bottom: 1px solid var(--carmine-wash);
  transition: border-color 120ms ease, color 120ms ease;
}

a:hover { border-bottom-color: var(--carmine); }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--carmine);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.7rem 1.1rem;
  border: 0;
  z-index: 50;
}

.skip:focus {
  left: 0.75rem;
  top: 0.75rem;
}

/* ---------- shell ---------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.narrow { max-width: var(--measure); }

/* ---------- masthead ---------- */

.masthead {
  border-bottom: 1px solid var(--rule);
  padding: 1.4rem 0;
}

.masthead-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: baseline;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  border: 0;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}

.wordmark:hover { color: var(--carmine); }

.wordmark .mark { transform: translateY(2px); }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.nav a {
  color: var(--ink-soft);
  border: 0;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--carmine);
}

/* ---------- type ---------- */

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 0.6rem;
  color: var(--ink);
}

h1 { font-size: clamp(2.1rem, 5.6vw, 3.3rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 1.95rem); margin-top: 0; }
h3 { font-size: 1.2rem; letter-spacing: -0.005em; }

p { margin: 0 0 1.05rem; max-width: var(--measure); }

.lede {
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

.eyebrow {
  font-family: var(--text);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--carmine);
  margin: 0 0 0.9rem;
  display: block;
}

.eyebrow.muted { color: var(--ink-faint); }

.fine {
  font-size: 0.875rem;
  color: var(--ink-faint);
  line-height: 1.6;
}

/* ---------- sections ---------- */

.band { padding: 4rem 0; }
.band + .band { border-top: 1px solid var(--rule); }
.band-stone { background: var(--stone); }
.band-tight { padding: 2.75rem 0; }

.hero {
  padding: 5rem 0 4.25rem;
  border-bottom: 1px solid var(--rule);
}

.hero h1 { max-width: 16ch; }
.hero .lede { margin-top: 1.4rem; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.9rem;
  margin-bottom: 2rem;
}

.section-head h2 { margin: 0; }

/* ---------- cairn marker (signature) ---------- */

.cairn {
  display: inline-block;
  width: 18px;
  flex: none;
}

.cairn rect { fill: var(--carmine); }
.cairn rect.hollow { fill: none; stroke: var(--carmine); stroke-width: 1.4; }

.footing {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--carmine);
}

.footing .cairn { width: 15px; }

.legend {
  border: 1px solid var(--rule);
  padding: 1.5rem;
  max-width: var(--measure);
}

.legend dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem 1rem;
  align-items: start;
}

.legend dt { display: flex; }
.legend dd { margin: 0; font-size: 0.9375rem; color: var(--ink-soft); }
.legend dd b { color: var(--ink); font-weight: 600; }

/* ---------- library ---------- */

.library { border-top: 1px solid var(--rule); }

.entry {
  display: block;
  border: 0;
  border-bottom: 1px solid var(--rule);
  padding: 1.9rem 0;
  color: inherit;
}

.entry:hover { border-bottom-color: var(--rule); background: var(--stone); }
.entry:hover h3 { color: var(--carmine); }

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
  align-items: center;
  margin-bottom: 0.7rem;
}

.entry h3 { margin: 0 0 0.45rem; max-width: 26ch; transition: color 120ms ease; }
.entry p { margin: 0; font-size: 0.9375rem; color: var(--ink-soft); }

/* ---------- principle list ---------- */

.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: var(--measure);
}

.principles li {
  border-top: 1px solid var(--rule);
  padding: 1.15rem 0;
}

.principles li:last-child { border-bottom: 1px solid var(--rule); }

.principles b {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.principles span { color: var(--ink-soft); font-size: 0.9375rem; }

/* ---------- plain lists ---------- */

.plain {
  list-style: none;
  margin: 0 0 1.05rem;
  padding: 0;
  max-width: var(--measure);
}

.plain li {
  padding-left: 1.35rem;
  position: relative;
  margin-bottom: 0.6rem;
  color: var(--ink-soft);
}

.plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 2px;
  background: var(--carmine);
}

/* ---------- faq ---------- */

.faq { max-width: var(--measure); }

.faq details {
  border-top: 1px solid var(--rule);
  padding: 1rem 0;
}

.faq details:last-of-type { border-bottom: 1px solid var(--rule); }

.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  color: var(--carmine);
  font-size: 1.1rem;
  line-height: 1;
}

.faq details[open] summary::after { content: "\2013"; }

.faq details p {
  margin: 0.8rem 0 0.2rem;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

/* ---------- article ---------- */

.article-head {
  padding: 3.5rem 0 2.25rem;
  border-bottom: 1px solid var(--rule);
}

.article-body { padding: 2.75rem 0 3.5rem; }
.article-body h2 { margin: 2.4rem 0 0.7rem; font-size: 1.4rem; }
.article-body h2:first-child { margin-top: 0; }

.pull {
  border-left: 2px solid var(--carmine);
  padding: 0.2rem 0 0.2rem 1.25rem;
  margin: 2rem 0;
  max-width: var(--measure);
  font-family: var(--display);
  font-size: 1.2rem;
  line-height: 1.35;
}

.sources {
  border-top: 1px solid var(--rule);
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  max-width: var(--measure);
}

.sources ol { margin: 0; padding-left: 1.15rem; }
.sources li { font-size: 0.875rem; color: var(--ink-soft); margin-bottom: 0.55rem; }

.note {
  background: var(--stone);
  border-left: 2px solid var(--carmine);
  padding: 1.25rem 1.4rem;
  max-width: var(--measure);
  margin: 2rem 0;
}

.note p:last-child { margin-bottom: 0; }
.note p { font-size: 0.9375rem; color: var(--ink-soft); }

/* ---------- legal ---------- */

.legal { padding: 3.25rem 0 4rem; }
.legal h2 { font-size: 1.3rem; margin: 2.5rem 0 0.6rem; }
.legal h2:first-of-type { margin-top: 2rem; }
.legal h3 { font-size: 1.0625rem; margin: 1.6rem 0 0.4rem; }
.legal p, .legal li { color: var(--ink-soft); }
.legal ul { max-width: var(--measure); padding-left: 1.15rem; }
.legal li { margin-bottom: 0.5rem; }

.stamp {
  font-size: 0.8125rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin-bottom: 2rem;
}

/* ---------- contact rows ---------- */

.rows { max-width: var(--measure); margin-top: 1.5rem; }

.row {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 0.5rem 1.5rem;
  border-top: 1px solid var(--rule);
  padding: 1rem 0;
}

.row:last-child { border-bottom: 1px solid var(--rule); }
.row dt { font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); font-weight: 600; }
.row dd { margin: 0; }

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--rule);
  padding: 3rem 0 3.5rem;
  background: var(--stone);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem 4rem;
  justify-content: space-between;
}

.footer h4 {
  font-family: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 0.9rem;
  font-weight: 600;
}

.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { margin-bottom: 0.5rem; font-size: 0.9375rem; }
.footer a { color: var(--ink-soft); border-bottom-color: transparent; }
.footer a:hover { color: var(--carmine); border-bottom-color: var(--carmine); }

.colophon {
  border-top: 1px solid var(--rule);
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  font-size: 0.8125rem;
  color: var(--ink-faint);
  max-width: 46rem;
}

.colophon p { max-width: none; margin-bottom: 0.5rem; }

/* ---------- 404 ---------- */

.lost { padding: 6rem 0; text-align: left; }

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  body { font-size: 1rem; }
  .hero { padding: 3.25rem 0 2.75rem; }
  .band { padding: 2.75rem 0; }
  .row { grid-template-columns: 1fr; gap: 0.25rem; }
  .masthead-inner { gap: 0.9rem; }
  .nav { gap: 1rem; font-size: 0.8125rem; }
  .shell { padding: 0 1.15rem; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}