:root {
  --paper: #f3f0e8;
  --ink: #1d211c;
  --muted: #6e7168;
  --faint: #d8d4c9;
  --accent: #1f513c;
  --wash: #e7e4da;
  --serif: Iowan Old Style, Palatino Linotype, Book Antiqua, Palatino, Georgia, serif;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration-color: rgba(31, 81, 60, .45); text-underline-offset: .18em; }
a:hover { color: var(--accent); text-decoration-color: var(--accent); }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header,
main,
footer {
  width: min(100% - 48px, 1000px);
  margin-inline: auto;
}

.site-header {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ink);
}

.wordmark {
  font-family: var(--serif);
  font-size: 21px;
  font-style: italic;
  text-decoration: none;
}

.header-actions,
.primary-nav,
.social-links { display: flex; align-items: center; }
.header-actions { gap: 0; }
.primary-nav { gap: clamp(14px, 3vw, 30px); }
.primary-nav a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
}
.social-links {
  gap: 4px;
  margin-left: clamp(14px, 2vw, 20px);
  padding-left: clamp(14px, 2vw, 20px);
  border-left: 1px solid var(--faint);
}
.social-links a {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  color: var(--muted);
  text-decoration: none;
}
.social-links svg {
  display: block;
  width: 13px;
  height: 13px;
  fill: currentColor;
}
.social-links a:hover,
.social-links a:focus-visible { color: var(--accent); }

.intro { padding: clamp(90px, 15vw, 170px) 0 clamp(76px, 11vw, 120px); }
.kicker,
.section-label > p {
  margin: 0 0 28px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(48px, 8.4vw, 92px);
  font-weight: 400;
  letter-spacing: -.045em;
  line-height: .98;
}

.intro-copy {
  max-width: 670px;
  margin: 48px 0 0 auto;
  font-family: var(--serif);
  font-size: clamp(20px, 2.5vw, 27px);
  line-height: 1.45;
}

.reference {
  font-family: var(--mono);
  font-size: 12px;
}

.rule { height: 1px; background: var(--ink); }

.section-grid {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(0, 2.15fr);
  gap: clamp(40px, 8vw, 100px);
  padding: clamp(72px, 10vw, 112px) 0;
}

.section-label > p { margin-bottom: 12px; }
h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(25px, 3vw, 35px);
  font-weight: 400;
  letter-spacing: -.025em;
  line-height: 1.15;
}

.section-content > :first-child { margin-top: 0; }
.section-content > :last-child { margin-bottom: 0; }
.prose > p {
  margin: 0 0 24px;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.58;
}

.note {
  margin-top: 46px;
  padding: 22px 24px;
  border-left: 2px solid var(--accent);
  background: var(--wash);
  font-family: var(--serif);
  font-size: 17px;
}
.note span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.system-list article {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-top: 1px solid var(--faint);
}
.system-list article:first-child { padding-top: 0; border-top: 0; }
.system-list h3,
.timeline h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
}
.system-list p,
.timeline p { margin: 0; color: var(--muted); }
.under-construction {
  margin-top: 35px;
  padding-top: 16px;
  border-top: 1px dashed var(--faint);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
}

.timeline article { margin-bottom: 52px; }
.timeline article:last-child { margin-bottom: 0; }
.timeline-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 9px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}
.timeline h3 { margin-bottom: 10px; font-size: 24px; }
.timeline p { margin-bottom: 12px; }

.facts > div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--faint);
}
.facts > div:first-child { padding-top: 0; border-top: 0; }
.facts span {
  padding-top: 3px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}
.facts p { margin: 0; color: var(--muted); }
.facts strong {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -.01em;
}

.beliefs { counter-reset: beliefs; }
.beliefs p {
  position: relative;
  margin: 0;
  padding: 22px 0 22px 46px;
  border-top: 1px solid var(--faint);
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.4;
  counter-increment: beliefs;
}
.beliefs p::before {
  content: counter(beliefs, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 29px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 10px;
}

.conversation-copy > p {
  max-width: 640px;
  margin: 0 0 34px;
  font-family: var(--serif);
  font-size: clamp(22px, 2.8vw, 31px);
  line-height: 1.42;
}
.conversation-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
}
.conversation-link:hover,
.conversation-link:focus-visible { border-color: var(--ink); }

.directory { border-top: 1px solid var(--faint); }
.directory > a,
.coverage-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--faint);
}
.directory > a {
  text-decoration: none;
}
.directory > a span:last-child,
.coverage-links {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-align: right;
}
.coverage-links a { color: inherit; text-decoration: none; }
.coverage-links a:hover,
.coverage-links a:focus-visible { color: var(--accent); }

.blog-site-header { position: static; }
.blog-main { min-height: 64vh; }
.blog-intro,
.post-header { padding: clamp(76px, 12vw, 130px) 0 clamp(48px, 8vw, 82px); }
.blog-intro h1,
.post-header h1 {
  max-width: 900px;
  margin: 18px 0 22px;
  font-size: clamp(52px, 9vw, 108px);
  line-height: .95;
}
.blog-intro > p:last-child,
.post-description {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.4;
}
.blog-list { border-top: 1px solid var(--faint); }
.blog-list-item {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 25px 0;
  border-bottom: 1px solid var(--faint);
  text-decoration: none;
}
.blog-list-item strong,
.blog-list-item small { display: block; }
.blog-list-item strong { font-family: var(--serif); font-size: 24px; }
.blog-list-item small { max-width: 620px; margin-top: 7px; color: var(--muted); font-size: 14px; }
.blog-list-item time,
.post-meta {
  flex: 0 0 auto;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}
.blog-empty { margin: 0; padding: 25px 0; border-bottom: 1px solid var(--faint); color: var(--muted); }
.post-header { padding-bottom: 55px; border-bottom: 1px solid var(--faint); }
.post-header .kicker a { text-decoration: none; }
.post-meta { margin: 24px 0 0; }
.post-prose { width: min(100%, 720px); margin: 70px auto 110px; font-family: var(--serif); font-size: 20px; line-height: 1.72; }
.post-prose h2,
.post-prose h3 { margin: 2.2em 0 .7em; line-height: 1.18; }
.post-prose h2 { font-size: 38px; }
.post-prose h3 { font-size: 27px; }
.post-prose p,
.post-prose ul,
.post-prose ol,
.post-prose blockquote,
.post-prose pre { margin: 0 0 1.4em; }
.post-prose img { max-width: 100%; height: auto; }
.post-prose blockquote { padding-left: 22px; border-left: 2px solid var(--accent); color: var(--muted); }
.post-prose code { font-family: var(--mono); font-size: .82em; }
.post-prose pre { overflow-x: auto; padding: 20px; background: var(--ink); color: var(--paper); font-size: 14px; line-height: 1.6; }
.post-prose pre code { font-size: inherit; }
.blog-page footer a { color: inherit; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 0 70px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}
footer p { margin: 0; }

@media (max-width: 700px) {
  body { background: var(--paper); }
  .site-header, main, footer { width: min(100% - 36px, 1000px); }
  .site-header { align-items: flex-start; padding: 20px 0; }
  .header-actions { flex-direction: column; align-items: flex-end; gap: 8px; }
  .primary-nav { display: grid; grid-template-columns: repeat(2, auto); gap: 5px 18px; }
  .social-links { gap: 6px; margin: 0; padding: 0; border-left: 0; }
  .intro { padding-top: 80px; }
  .intro-copy { margin-top: 36px; }
  .section-grid { grid-template-columns: 1fr; gap: 36px; }
  .system-list article { grid-template-columns: 1fr; gap: 6px; }
  .facts > div { grid-template-columns: 80px 1fr; gap: 16px; }
  .directory a { align-items: baseline; }
  .blog-list-item { align-items: flex-start; }
  .blog-intro h1,
  .post-header h1 { font-size: clamp(50px, 17vw, 76px); }
  .post-prose { margin-top: 50px; font-size: 18px; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}