:root {
  --paper: #f3efe6;
  --paper-deep: #e9e2d6;
  --ink: #151311;
  --muted: #6d665e;
  --faint: #938b81;
  --rule: #d6cec1;
  --accent: #d43b24;
  --sans: "Instrument Sans", system-ui, sans-serif;
  --serif: "Newsreader", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
  background: var(--paper);
}

body {
  max-width: 100%;
  overflow-wrap: break-word;
}

img,
svg,
video,
canvas {
  max-width: 100%;
  height: auto;
}

body.home-page,
body.articles-index,
body.article-page {
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent 0, transparent calc(50% - 35rem), rgba(21, 19, 17, 0.025) calc(50% - 35rem), rgba(21, 19, 17, 0.025) calc(50% - 34.94rem), transparent calc(50% - 34.94rem)),
    var(--paper);
  font-family: var(--serif);
  text-align: left;
  -webkit-font-smoothing: antialiased;
}

body.home-page a,
body.articles-index a,
body.article-page a {
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

body.home-page ::selection,
body.articles-index ::selection,
body.article-page ::selection {
  color: var(--ink);
  background: rgba(212, 59, 36, 0.2);
}

/* Homepage */

body.home-page {
  min-height: 100vh;
  display: block;
  padding: 0 1.5rem 3rem;
}

.home-page > .heading,
.home-page > .subheading,
.home-page > .books,
.home-page > .about,
.home-page > .articles,
.home-page > footer {
  width: min(100%, 58rem);
  max-width: 58rem;
  margin-left: auto;
  margin-right: auto;
}

.home-page .heading {
  display: flex;
  align-items: center;
  gap: 0.58rem;
  margin: 3.2rem auto 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.home-page .heading img {
  width: 1.15rem;
  height: 1.15rem;
  object-fit: contain;
}

.home-page .subheading {
  margin-top: 0.45rem;
  margin-bottom: 3.8rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.025em;
}

.home-page .books {
  display: block;
}

.home-page .book {
  display: grid;
  grid-template-columns: minmax(13rem, 17rem) minmax(0, 1fr);
  grid-template-rows: repeat(4, auto) 1fr;
  column-gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
  padding: 0;
  color: inherit;
  border-radius: 0;
}

.home-page .book:hover {
  background: transparent;
}

.home-page .book-cover {
  grid-column: 1;
  grid-row: 1 / 6;
  width: 100%;
  margin: 0;
  border-radius: 2px;
  box-shadow: 0 1.6rem 3.8rem rgba(27, 22, 18, 0.16), 0 0 0 1px rgba(21, 19, 17, 0.08);
}

.home-page .book:hover .book-cover {
  transform: translateY(-4px);
  box-shadow: 0 2rem 4.5rem rgba(27, 22, 18, 0.2), 0 0 0 1px rgba(21, 19, 17, 0.08);
}

.home-page .book-title {
  grid-column: 2;
  margin: 1rem 0 0.65rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(2rem, 4.8vw, 3.65rem);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.home-page .book-subtitle {
  grid-column: 2;
  max-width: 34rem;
  margin: 0 0 1rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.94rem;
  line-height: 1.45;
  letter-spacing: 0;
}

.home-page .book-audience {
  grid-column: 2;
  margin: 0 0 1.5rem;
  color: var(--faint);
  font-family: var(--serif);
  font-size: 0.9rem;
  font-style: italic;
}

.home-page .book-cta {
  grid-column: 2;
  justify-self: start;
  margin-top: 0.3rem;
  padding: 0.72rem 1rem;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 0;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  opacity: 1;
  transform: none;
}

.home-page .book-eoa .book-cta,
.home-page .book-eoa:hover .book-cta {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}

.home-page .about,
.home-page .articles {
  padding-left: min(22rem, 38%);
}

.home-page .about {
  margin-top: 4.5rem;
}

.home-page .about p {
  margin: 0 0 1.15rem;
  color: #47413b;
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.65;
}

.home-page .about a {
  color: var(--ink);
  text-decoration-color: var(--accent);
}

.home-page .articles {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top-color: var(--rule);
}

.home-page .articles-title {
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
}

.home-page .articles-desc,
.home-page .article-list a,
.home-page .articles-all {
  font-family: var(--sans);
}

.home-page .articles-desc {
  color: var(--muted);
  font-size: 0.8rem;
}

.home-page .article-list li {
  margin: 0.55rem 0;
}

.home-page .article-list a,
.home-page .articles-all {
  color: var(--ink);
  text-decoration-color: var(--rule);
}

.home-page .articles-all {
  color: var(--accent);
}

.home-page > footer {
  padding-left: min(22rem, 38%);
  color: var(--faint);
  font-family: var(--sans);
  text-align: left;
}

/* Current homepage */

.home-page .site-header,
.home-page main,
.home-page .site-footer {
  width: min(100%, 68rem);
  margin-right: auto;
  margin-left: auto;
}

.home-page .site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.4rem 0 2rem;
  border-bottom: 1px solid var(--rule);
  font-family: var(--sans);
}

.home-page .site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.home-page .site-brand img {
  width: 1rem;
  height: 1rem;
  object-fit: contain;
}

.home-page .site-nav,
.home-page .site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 550;
}

.home-page .site-nav a,
.home-page .site-footer a {
  color: var(--muted);
  text-decoration-color: transparent;
}

.home-page .site-nav a:hover,
.home-page .site-footer a:hover {
  color: var(--accent);
}

.home-page main {
  display: block;
}

.home-page .home-book {
  display: grid;
  grid-template-columns: minmax(13rem, 18rem) minmax(0, 1fr);
  column-gap: clamp(3rem, 7vw, 6rem);
  align-items: center;
  padding: clamp(3.8rem, 8vw, 7rem) 0;
}

.home-page .home-cover-link {
  display: block;
  color: inherit;
}

.home-page .home-cover {
  display: block;
  width: 100%;
  border-radius: 2px;
  box-shadow: 0 1.8rem 4.5rem rgba(27, 22, 18, 0.2), 0 0 0 1px rgba(21, 19, 17, 0.1);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.home-page .home-cover-link:hover .home-cover {
  transform: translateY(-4px);
  box-shadow: 0 2.2rem 5rem rgba(27, 22, 18, 0.24), 0 0 0 1px rgba(21, 19, 17, 0.1);
}

.home-page .eyebrow {
  margin: 0 0 0.9rem;
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-page .home-book h1 {
  max-width: 42rem;
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(3.2rem, 7.5vw, 6.4rem);
  font-weight: 500;
  line-height: 0.86;
  letter-spacing: -0.06em;
}

.home-page .home-subtitle {
  max-width: 36rem;
  margin: 1.35rem 0 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.025em;
}

.home-page .home-deck {
  max-width: 37rem;
  margin: 1.8rem 0 0;
  color: #433d37;
  font-size: 1.08rem;
  line-height: 1.6;
}

.home-page .home-audience {
  margin: 1.25rem 0 0;
  color: var(--faint);
  font-size: 0.9rem;
  font-style: italic;
}

.home-page .home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.8rem;
}

.home-page .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.72rem 1.05rem;
  border: 1px solid var(--ink);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 650;
  line-height: 1;
  text-decoration: none;
}

.home-page .button-primary {
  color: var(--paper);
  background: var(--ink);
}

.home-page .button-primary:hover {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.home-page .button-secondary {
  color: var(--ink);
  background: transparent;
}

.home-page .button-secondary:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.home-page .home-section {
  display: grid;
  grid-template-columns: minmax(9rem, 14rem) minmax(0, 1fr);
  column-gap: clamp(3rem, 7vw, 6rem);
  padding: 3.8rem 0;
  border-top: 1px solid var(--rule);
}

.home-page .home-section > h2,
.home-page .home-section > div > h2 {
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.home-page .home-prose {
  max-width: 43rem;
}

.home-page .home-prose p {
  margin: 0 0 1.25rem;
  color: #433d37;
  font-size: 1.08rem;
  line-height: 1.7;
}

.home-page .home-prose a,
.home-page .text-link {
  color: var(--ink);
  text-decoration-color: var(--accent);
}

.home-page .home-prose .button {
  color: var(--paper);
  text-decoration: none;
}

.home-page .home-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.home-page .home-points article {
  padding-top: 0.85rem;
  border-top: 2px solid var(--ink);
}

.home-page .home-points h3 {
  margin: 0 0 0.55rem;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.home-page .home-points p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.home-page .home-argument blockquote {
  margin: 0 0 1.8rem;
  padding: 0 0 0 1.25rem;
  color: var(--ink);
  border-left: 3px solid var(--accent);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-style: normal;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.home-page .section-note {
  margin: 0.45rem 0 0;
  color: var(--faint);
  font-size: 0.85rem;
}

.home-page .home-articles .article-list {
  margin: 0 0 1.2rem;
  padding: 0;
  list-style: none;
}

.home-page .home-articles .article-list li {
  margin: 0;
  border-bottom: 1px solid var(--rule);
}

.home-page .home-articles .article-list li:first-child {
  border-top: 1px solid var(--rule);
}

.home-page .home-articles .article-list a {
  display: block;
  padding: 0.72rem 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 550;
  text-decoration: none;
}

.home-page .home-articles .article-list a:hover,
.home-page .text-link:hover {
  color: var(--accent);
}

.home-page .text-link {
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 600;
}

.home-page .site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 1rem;
  padding: 2rem 0 0;
  color: var(--faint);
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.72rem;
}

.home-page .site-footer p {
  margin: 0;
}

/* Articles and article index */

body.articles-index,
body.article-page {
  width: auto;
  max-width: 46rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
  font-size: 18.5px;
  line-height: 1.68;
}

.article-page h2,
.article-page h3,
.articles-index ol li a,
.articles-index .part-header,
.articles-index .home-link,
.article-page .series-link,
.article-page .nav,
.article-page .also,
.article-page footer,
.articles-index footer,
.book-card,
.cta-box {
  font-family: var(--sans);
}

.articles-index h1,
.article-page h1 {
  font-family: var(--serif);
}

.articles-index h1,
.article-page h1 {
  margin-top: 1.5rem;
  color: var(--ink);
  font-size: clamp(2.2rem, 7vw, 4rem);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.article-page h2 {
  margin: 2.6rem 0 0.75rem;
  color: var(--ink);
  font-size: 1.34rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.article-page h3 {
  color: var(--ink);
}

.articles-index .home-link,
.article-page .series-link {
  margin-bottom: 2.8rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.articles-index .home-link:hover,
.article-page .series-link:hover {
  color: var(--accent);
}

.articles-index .subtitle {
  color: var(--muted);
}

.articles-index .intro {
  margin-bottom: 2.8rem;
  padding-bottom: 2rem;
  border-bottom-color: var(--rule);
  font-size: 1.08rem;
}

.articles-index ol li {
  margin: 1.25rem 0;
}

.articles-index ol li a {
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.018em;
}

.articles-index ol li a:hover {
  color: var(--accent);
}

.articles-index .summary {
  margin-top: 0.32rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.articles-index .part-header {
  margin-top: 2.8rem !important;
  padding-top: 0.75rem;
  color: var(--accent);
  border-top-color: var(--rule);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.article-page .part {
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
}

.article-page .article-summary {
  margin: 1.2rem 0 2rem;
  padding: 0.15rem 0 0.15rem 1.15rem;
  color: #4d463f;
  border: 0;
  border-left: 3px solid var(--accent);
  font-family: var(--serif);
  font-size: 1.05rem;
  font-style: normal;
  line-height: 1.58;
}

.article-page p {
  margin: 0.95rem 0;
}

.article-page hr.story-sep::after {
  content: "";
  display: inline-block;
  width: 2.4rem;
  border-top: 2px solid var(--accent);
  letter-spacing: 0;
}

.article-page pre {
  max-width: 100%;
  color: #28231e;
  background: var(--paper-deep);
  border-radius: 0;
}

.article-page table.article-table {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.35);
  border-top: 1px solid var(--ink);
  font-family: var(--sans);
  -webkit-overflow-scrolling: touch;
}

.article-page table.article-table th,
.article-page table.article-table td {
  min-width: 6.4rem;
  padding: 0.68rem 0.75rem;
  border-bottom-color: var(--rule);
  vertical-align: top;
}

.article-page .diagram-placeholder {
  background: var(--paper-deep);
  border-color: var(--rule);
  border-radius: 0;
}

.article-page .floating-books {
  display: none !important;
}

.article-page .book-promo,
.articles-index .cta-box {
  margin: 3.5rem 0 2rem;
  padding: 0;
  background: transparent;
}

.article-page .book-card {
  align-items: center;
  padding: 1rem 0;
  color: var(--ink);
  background: transparent;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  border-radius: 0;
}

.article-page .book-card:hover {
  transform: none;
  box-shadow: none;
}

.article-page .book-cover {
  border-radius: 1px;
}

.article-page .book-label {
  color: var(--accent);
}

.article-page .book-cta {
  color: var(--accent);
}

.articles-index .cta-box {
  text-align: left;
  border-top: 1px solid var(--ink);
  border-radius: 0;
}

.articles-index .cta-box p {
  margin: 0.8rem 0 0.6rem;
  color: var(--muted);
}

.articles-index .cta-box a.cta-primary {
  padding: 0;
  color: var(--accent);
  background: transparent;
  border-radius: 0;
}

.article-page .nav,
.article-page footer,
.articles-index footer {
  border-top-color: var(--rule);
}

.article-page .nav a,
.article-page .also,
.article-page .also a,
.article-page footer,
.article-page footer a,
.articles-index footer,
.articles-index footer a {
  color: var(--muted);
}

@media (max-width: 700px) {
  body.home-page {
    padding: 0 1.25rem 2.5rem;
  }

  .home-page .site-header {
    padding: 1.5rem 0;
  }

  .home-page .site-nav {
    gap: 0.75rem;
  }

  .home-page .site-nav a:first-child {
    display: none;
  }

  .home-page .home-book {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 3.4rem 0 4rem;
  }

  .home-page .home-cover-link {
    width: min(13.5rem, 66vw);
    margin: 0 auto 3rem;
  }

  .home-page .home-book h1 {
    font-size: clamp(3.4rem, 19vw, 5.6rem);
  }

  .home-page .home-section {
    display: block;
    padding: 3rem 0;
  }

  .home-page .home-section > h2,
  .home-page .home-section > div > h2 {
    margin-bottom: 1.6rem;
  }

  .home-page .home-points {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .home-page .home-articles .section-note {
    margin-top: -1.1rem;
    margin-bottom: 1.6rem;
  }

  .home-page .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  .home-page .heading {
    margin-top: 2.2rem;
  }

  .home-page .subheading {
    margin-bottom: 2.5rem;
  }

  .home-page .book {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .home-page .book-cover {
    width: min(13.5rem, 68vw);
    align-self: center;
    margin-bottom: 2.2rem;
  }

  .home-page .book-title {
    margin-top: 0;
    font-size: clamp(2.2rem, 12vw, 3.4rem);
  }

  .home-page .about,
  .home-page .articles,
  .home-page > footer {
    padding-left: 0;
  }

  .home-page .about {
    margin-top: 3.4rem;
  }

  body.articles-index,
  body.article-page {
    width: 100%;
    padding: 2rem 1.25rem 4rem;
    font-size: 17.5px;
  }

  .articles-index h1,
  .article-page h1 {
    overflow-wrap: anywhere;
  }

  .article-page .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }
}