:root {
  --paper: #f7f4ed;
  --paper-raised: #fffdf8;
  --ink: #282622;
  --muted: #6e6960;
  --faint: #a29b90;
  --line: #d8d1c5;
  --line-soft: #e9e3d9;
  --accent: #b34a2f;
  --accent-dark: #7e2f1e;
  --accent-wash: #f3ded5;
  --sage: #435c52;
  --sage-wash: #dde7e1;
  --gold: #a77a26;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: "Avenir Next", Avenir, "Gill Sans", "Trebuchet MS", sans-serif;
  --mono: "Cascadia Mono", Consolas, monospace;
  --reading-width: 690px;
  --shadow: 0 18px 50px rgb(65 50 31 / 9%);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 4%, rgb(179 74 47 / 7%), transparent 26rem),
    linear-gradient(rgb(80 65 43 / 2%) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 100% 32px, auto;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-dark); text-decoration-thickness: 1px; text-underline-offset: .16em; }
a:hover { color: var(--accent); }

:focus-visible {
  outline: 3px solid rgb(179 74 47 / 35%);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .45rem .75rem;
  color: var(--paper-raised);
  background: var(--ink);
  font: 700 .75rem var(--sans);
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.progress {
  position: fixed;
  z-index: 80;
  inset: 0 auto auto 0;
  width: 0;
  height: 3px;
  background: var(--accent);
}

.site-header {
  position: sticky;
  z-index: 60;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  padding: 0 clamp(1rem, 4vw, 4rem);
  border-bottom: 1px solid rgb(88 73 52 / 13%);
  background: rgb(247 244 237 / 91%);
  backdrop-filter: blur(12px);
}

.wordmark {
  display: inline-flex;
  gap: .65rem;
  align-items: center;
  color: var(--ink);
  font: 700 .82rem var(--sans);
  letter-spacing: .12em;
  text-decoration: none;
  text-transform: uppercase;
}

.wordmark-mark {
  display: grid;
  width: 27px;
  height: 27px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font: italic 700 1rem var(--serif);
  letter-spacing: 0;
  text-transform: none;
}

.header-nav { display: flex; gap: 1.3rem; align-items: center; }
.header-nav a {
  color: var(--muted);
  font: 650 .76rem var(--sans);
  letter-spacing: .05em;
  text-decoration: none;
  text-transform: uppercase;
}
.header-nav a:hover { color: var(--accent); }

.landing {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4.5rem, 11vw, 9rem) 0 6rem;
}

.eyebrow {
  display: flex;
  gap: .75rem;
  align-items: center;
  margin: 0 0 1rem;
  color: var(--accent);
  font: 750 .72rem var(--sans);
  letter-spacing: .15em;
  text-transform: uppercase;
}
.eyebrow::before { width: 2.5rem; height: 1px; content: ""; background: currentColor; }

.landing h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 7rem);
  font-weight: 500;
  letter-spacing: -.055em;
  line-height: .95;
}

.landing-intro {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(230px, 1fr);
  gap: clamp(2rem, 7vw, 8rem);
  align-items: end;
  margin-top: clamp(2.5rem, 7vw, 5rem);
}

.landing-intro > p {
  max-width: 660px;
  margin: 0;
  color: #47433d;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.5;
}

.library-note {
  padding: 1rem 0 1rem 1.25rem;
  border-left: 2px solid var(--accent);
  color: var(--muted);
  font: .86rem/1.55 var(--sans);
}

.library { margin-top: 6rem; border-top: 1px solid var(--line); }
.library-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.25rem 0;
  font-family: var(--sans);
}
.library-heading h2 { margin: 0; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.library-heading span { color: var(--faint); font-size: .78rem; }

.review-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(180px, .8fr);
  gap: 3rem;
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 3vw, 2.5rem);
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgb(255 253 248 / 58%);
  box-shadow: var(--shadow);
  text-decoration: none;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.review-card + .review-card { margin-top: 1rem; }
.review-card:nth-of-type(2)::after { content: "02"; }
.review-card::after {
  position: absolute;
  right: -2rem;
  bottom: -6.5rem;
  color: rgb(179 74 47 / 7%);
  content: "01";
  font: 500 13rem/1 var(--serif);
}
.review-card:hover { color: inherit; border-color: var(--accent); background: var(--paper-raised); transform: translateY(-3px); }
.review-card h3 { margin: .2rem 0 1rem; color: var(--ink); font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 500; letter-spacing: -.035em; line-height: 1.05; }
.review-card p { max-width: 690px; margin: 0; color: var(--muted); }
.review-kicker { color: var(--accent); font: 700 .71rem var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.review-meta { position: relative; z-index: 1; align-self: end; color: var(--muted); font: .78rem/1.7 var(--sans); }
.review-meta strong { display: block; margin-top: .8rem; color: var(--ink); font-size: .82rem; }

.site-footer {
  display: flex;
  justify-content: space-between;
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: .76rem var(--sans);
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(150px, 220px) minmax(0, var(--reading-width)) minmax(220px, 330px);
  gap: clamp(2rem, 4vw, 4.5rem);
  justify-content: center;
  width: min(1450px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 4.5rem 0 8rem;
}

.toc {
  position: sticky;
  top: 5.8rem;
  align-self: start;
  max-height: calc(100vh - 7rem);
  overflow: auto;
  color: var(--muted);
  font: .74rem/1.45 var(--sans);
}
.toc-label { margin: 0 0 1rem; color: var(--faint); font-size: .66rem; font-weight: 750; letter-spacing: .15em; text-transform: uppercase; }
.toc ol { margin: 0; padding: 0; list-style: none; }
.toc li { margin: 0 0 .3rem; }
.toc a { display: block; padding: .2rem .5rem .2rem .7rem; border-left: 1px solid var(--line); color: inherit; text-decoration: none; }
.toc a:hover, .toc a.active { border-left-color: var(--accent); color: var(--accent-dark); }
.toc .sub { padding-left: .75rem; font-size: .69rem; }

.article { min-width: 0; }
.article-header { margin-bottom: 4.5rem; }
.article-header h1 { margin: .7rem 0 1.25rem; font-size: clamp(3rem, 6.5vw, 5.8rem); font-weight: 500; letter-spacing: -.052em; line-height: .98; }
.dek { margin: 0 0 2rem; color: #4c4841; font-size: 1.35rem; line-height: 1.5; }
.byline {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.25rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: .75rem var(--sans);
}
.byline strong { color: var(--ink); }

.status-note {
  margin: 2rem 0;
  padding: 1.1rem 1.25rem;
  border: 1px solid #c7d5cd;
  background: var(--sage-wash);
  color: #354a41;
  font: .88rem/1.55 var(--sans);
}

.article h2 {
  margin: 5rem 0 1.35rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 2.2rem;
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.15;
}
.article h3 { margin: 3.2rem 0 1rem; font-size: 1.45rem; font-weight: 600; line-height: 1.25; }
.article p { margin: 0 0 1.35rem; }
.article > section > p:first-of-type::first-letter {
  float: left;
  margin: .08em .1em 0 0;
  color: var(--accent);
  font-size: 3.25em;
  line-height: .72;
}
.article strong { font-weight: 700; }
.article blockquote {
  margin: 2rem 0;
  padding: .25rem 0 .25rem 1.4rem;
  border-left: 3px solid var(--accent);
  color: #454039;
  font-size: 1.15rem;
  font-style: italic;
}
.article blockquote cite { display: block; margin-top: .7rem; color: var(--muted); font: .73rem var(--sans); }

.concept-link { text-decoration-style: dotted; }
.cite-link {
  display: inline-grid;
  min-width: 1.35em;
  height: 1.35em;
  margin-left: .1em;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent-dark);
  font: 700 .62em var(--sans);
  text-decoration: none;
  vertical-align: super;
}
.cite-link:hover { border-color: var(--accent); background: var(--accent-wash); }

.synthesis {
  margin: 2.2rem 0;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--gold);
  background: rgb(255 253 248 / 80%);
  box-shadow: 0 10px 25px rgb(57 44 28 / 5%);
}
.synthesis-label { display: block; margin-bottom: .55rem; color: var(--gold); font: 750 .66rem var(--sans); letter-spacing: .14em; text-transform: uppercase; }
.synthesis p:last-child { margin-bottom: 0; }

.pattern-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 2rem 0; border: 1px solid var(--line); background: var(--line); }
.pattern { padding: 1.2rem; background: var(--paper-raised); }
.pattern b { display: block; margin-bottom: .35rem; color: var(--accent-dark); font: 700 .78rem var(--sans); letter-spacing: .05em; text-transform: uppercase; }
.pattern span { color: var(--muted); font-size: .92rem; line-height: 1.5; }

.claim-table { width: 100%; margin: 2rem 0; border-collapse: collapse; font: .82rem/1.45 var(--sans); }
.claim-table th, .claim-table td { padding: .8rem .7rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.claim-table th { color: var(--faint); font-size: .65rem; letter-spacing: .1em; text-transform: uppercase; }
.claim-table td:first-child { color: var(--accent-dark); font-weight: 700; }

.references { font-size: .9rem; }
.references ol { padding-left: 1.4rem; }
.references li { margin: 0 0 1.1rem; padding-left: .35rem; }
.references a { overflow-wrap: anywhere; }

.margin-rail { min-width: 0; }
.margin-intro {
  position: sticky;
  top: 5.8rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--line);
  background: rgb(255 253 248 / 60%);
  color: var(--muted);
  font: .76rem/1.55 var(--sans);
}
.margin-intro strong { display: block; margin-bottom: .4rem; color: var(--ink); }

.sidenote-source { display: none; }
.margin-note {
  position: absolute;
  width: min(310px, calc((100vw - var(--reading-width)) / 2 - 4rem));
  margin-top: -1.1rem;
  margin-left: calc(var(--reading-width) + clamp(2rem, 4vw, 4.5rem));
  padding: .75rem .85rem;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font: .72rem/1.5 var(--sans);
}
.margin-note::before { margin-right: .35rem; color: var(--accent); content: attr(data-number); font-weight: 800; }
.margin-note a { color: var(--accent-dark); }

.preview-card {
  position: fixed;
  z-index: 90;
  width: min(390px, calc(100vw - 2rem));
  padding: 1rem 1.1rem;
  border: 1px solid #cfc6b8;
  border-top: 3px solid var(--accent);
  background: var(--paper-raised);
  box-shadow: 0 18px 55px rgb(42 34 25 / 23%);
  opacity: 0;
  pointer-events: none;
  transform: translateY(5px);
  transition: opacity .13s ease, transform .13s ease;
}
.preview-card.visible { opacity: 1; transform: translateY(0); }
.preview-label { margin-bottom: .35rem; color: var(--accent); font: 750 .61rem var(--sans); letter-spacing: .13em; text-transform: uppercase; }
.preview-title { margin: 0 0 .35rem; color: var(--ink); font: 700 .96rem/1.3 var(--serif); }
.preview-text { margin: 0; color: var(--muted); font: .75rem/1.5 var(--sans); }

.mobile-cite { display: none; }

@media (max-width: 1120px) {
  .article-shell { grid-template-columns: minmax(150px, 210px) minmax(0, var(--reading-width)); }
  .margin-rail { display: none; }
  .margin-note { position: static; width: auto; margin: -.7rem 0 1.5rem; border: 1px solid var(--line); border-left: 3px solid var(--accent); background: rgb(255 253 248 / 70%); }
}

@media (max-width: 820px) {
  body { font-size: 17px; }
  .article-shell { display: block; width: min(700px, calc(100% - 2rem)); padding-top: 2.5rem; }
  .toc { position: static; max-height: none; margin-bottom: 3rem; padding: 1rem; border: 1px solid var(--line); }
  .toc ol { columns: 2; }
  .toc li { break-inside: avoid; }
  .article-header { margin-bottom: 3rem; }
  .article h2 { margin-top: 4rem; }
  .landing-intro, .review-card { grid-template-columns: 1fr; }
  .review-meta { display: flex; gap: 1rem; flex-wrap: wrap; }
  .review-meta strong { width: 100%; }
  .pattern-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .site-header { padding-inline: .8rem; }
  .wordmark { font-size: .69rem; }
  .header-nav a:not(:last-child) { display: none; }
  .landing { padding-top: 4rem; }
  .landing h1 { font-size: 3.2rem; }
  .library { margin-top: 4rem; }
  .review-card { padding: 1.5rem; }
  .review-card::after { display: none; }
  .article-header h1 { font-size: 3.15rem; }
  .dek { font-size: 1.15rem; }
  .toc ol { columns: 1; }
  .claim-table { display: block; overflow-x: auto; }
  .site-footer { display: block; }
  .site-footer span { display: block; margin-bottom: .5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

@media print {
  body { background: white; font-size: 11pt; }
  .site-header, .toc, .margin-rail, .progress, .preview-card { display: none !important; }
  .article-shell { display: block; width: 100%; padding: 0; }
  .article { max-width: 100%; }
  .margin-note { position: static; width: auto; margin: .25rem 0 1rem; border-left: 1px solid #999; }
  a { color: inherit; }
}