:root {
  color-scheme: light;
  --paper: #f2efe8;
  --paper-deep: #e3ded3;
  --ink: #171615;
  --muted: #67625b;
  --line: #c7c0b5;
  --signal: #b3261e;
  --signal-dark: #821b16;
  --white: #fffdf8;
  --serif: Charter, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Arial Narrow", "Aptos Narrow", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --page: 76rem;
  --reading: 46rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 20rem;
  background:
    linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), rgba(23, 22, 21, 0.035) calc(100% - 1px)) 0 0 / 6.25rem 100%,
    var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--signal);
  color: var(--white);
}

a {
  color: inherit;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--signal-dark);
}

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

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 0.2rem solid var(--signal);
  outline-offset: 0.25rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  transform: translateY(-180%);
  background: var(--ink);
  color: var(--white);
  font-family: var(--sans);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 2.5rem), var(--page));
  margin-inline: auto;
}

.masthead {
  border-bottom: 1px solid var(--ink);
}

.masthead__inner {
  display: grid;
  grid-template-columns: minmax(14rem, 1fr) auto;
  gap: 2rem;
  align-items: center;
  min-height: 6.25rem;
}

.brand {
  display: inline-flex;
  gap: 0.8rem;
  align-items: center;
  width: fit-content;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  font-stretch: condensed;
  font-weight: 800;
  letter-spacing: 0.035em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
}

.brand:hover {
  color: var(--ink);
}

.brand__mark {
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  place-items: center;
  background: var(--ink);
  color: var(--white);
  font-size: 0.9rem;
  letter-spacing: -0.05em;
}

.brand__slash {
  color: #ef4a3f;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem 1.25rem;
  font-family: var(--sans);
  font-size: 0.79rem;
  font-weight: 800;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.nav a {
  position: relative;
  padding-block: 0.6rem;
  text-decoration: none;
}

.nav a::after {
  position: absolute;
  right: 0;
  bottom: 0.25rem;
  left: 0;
  height: 0.15rem;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--signal);
  content: "";
  transition: transform 160ms ease;
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.utility-line {
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.utility-line__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.55rem;
}

.utility-line__status::before {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: var(--signal);
  content: "";
}

.hero {
  padding-block: clamp(4rem, 9vw, 8rem) clamp(3.5rem, 7vw, 6.5rem);
  border-bottom: 1px solid var(--ink);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(17rem, 0.7fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: end;
}

.hero__kicker,
.page-intro__kicker,
.eyebrow,
.section-label,
.meta,
.tag {
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: 0.085em;
  text-transform: uppercase;
}

.hero__kicker,
.page-intro__kicker {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin: 0 0 1.5rem;
  color: var(--signal-dark);
  font-size: 0.78rem;
}

.hero__kicker::before,
.page-intro__kicker::before {
  width: 2.5rem;
  height: 0.2rem;
  background: var(--signal);
  content: "";
}

.hero h1,
.page-intro h1 {
  max-width: 13ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.55rem, 8vw, 7.5rem);
  font-weight: 500;
  letter-spacing: -0.067em;
  line-height: 0.88;
}

.hero h1 em,
.page-intro h1 em {
  color: var(--signal);
  font-style: italic;
  font-weight: 400;
}

.hero__aside {
  padding-top: 1.3rem;
  border-top: 0.35rem solid var(--signal);
}

.hero__aside p {
  margin: 0;
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.55;
}

.hero__aside p + p {
  margin-top: 1.25rem;
}

.hero__aside .small {
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.86rem;
  line-height: 1.55;
}

.section {
  padding-block: clamp(3.75rem, 7vw, 6.5rem);
  border-bottom: 1px solid var(--line);
}

.section--ink {
  background: var(--ink);
  color: var(--paper);
}

.section--signal {
  background: var(--signal);
  color: var(--white);
}

.section-heading {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
  margin-bottom: clamp(2.25rem, 4vw, 4rem);
}

.section-label {
  margin: 0;
  padding-top: 0.55rem;
  color: var(--muted);
  font-size: 0.72rem;
}

.section--ink .section-label {
  color: #aaa49a;
}

.section-heading h2 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.2rem, 4.5vw, 4.5rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.section-heading p {
  max-width: 42rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

.article-list {
  border-top: 1px solid currentColor;
}

.article-row {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr) 2rem;
  gap: 1.5rem;
  align-items: start;
  padding-block: 1.65rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.article-row:hover {
  color: var(--ink);
}

.article-row:hover .article-row__title {
  color: var(--signal-dark);
}

.article-row:hover .article-row__arrow {
  transform: translateX(0.25rem);
}

.article-row__meta {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.5;
  text-transform: uppercase;
}

.article-row__title {
  display: block;
  margin-bottom: 0.35rem;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.article-row__excerpt {
  display: block;
  max-width: 48rem;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.article-row__arrow {
  color: var(--signal);
  font-family: var(--sans);
  font-size: 1.5rem;
  transition: transform 160ms ease;
}

.link-line {
  display: inline-flex;
  gap: 0.6rem;
  align-items: center;
  margin-top: 2rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.link-line::after {
  content: "→";
}

.routes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--paper);
  border-left: 1px solid #4b4945;
}

.route-card {
  display: flex;
  min-height: 17rem;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid #4b4945;
  border-bottom: 1px solid #4b4945;
  color: var(--paper);
  text-decoration: none;
}

.route-card:hover {
  background: var(--signal);
  color: var(--white);
}

.route-card__number {
  font-family: var(--mono);
  font-size: 0.72rem;
}

.route-card h3 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.55rem, 2.8vw, 2.4rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
}

.route-card p {
  margin: 0;
  color: #bdb7ad;
  font-size: 0.93rem;
  line-height: 1.5;
}

.route-card:hover p {
  color: var(--white);
}

.project-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(2.5rem, 8vw, 8rem);
}

.project-feature__status {
  align-self: start;
  padding-top: 1rem;
  border-top: 1px solid currentColor;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.project-feature__content h2 {
  max-width: 13ch;
  margin: 0 0 1.5rem;
  font-size: clamp(2.5rem, 5vw, 5.25rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.project-feature__content p {
  max-width: 43rem;
  margin: 0;
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
}

.project-feature__content .link-line {
  color: inherit;
}

.page-intro {
  padding-block: clamp(4.5rem, 9vw, 8rem);
  border-bottom: 1px solid var(--ink);
}

.page-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  gap: clamp(2.5rem, 8vw, 8rem);
  align-items: end;
}

.page-intro__summary {
  margin: 0;
  padding-top: 1rem;
  border-top: 0.35rem solid var(--signal);
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.55;
}

.content-grid {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 1.5rem;
}

.content-grid + .content-grid {
  margin-top: 4.5rem;
}

.content-main {
  max-width: 57rem;
}

.content-main > :first-child {
  margin-top: 0;
}

.content-main h2 {
  margin: 0 0 1.25rem;
  font-size: clamp(2rem, 4vw, 3.6rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
}

.content-main h3 {
  margin: 2.75rem 0 0.75rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.content-main p,
.content-main li {
  max-width: var(--reading);
}

.content-main p {
  margin-block: 1rem;
}

.content-main ul,
.content-main ol {
  margin-block: 1.25rem;
  padding-left: 1.35rem;
}

.content-main li + li {
  margin-top: 0.55rem;
}

.callout {
  max-width: var(--reading);
  margin-block: 2.5rem;
  padding: 1.5rem;
  border-left: 0.35rem solid var(--signal);
  background: var(--white);
}

.callout p {
  margin: 0;
  font-size: 1.12rem;
}

.project-list {
  border-top: 1px solid var(--ink);
}

.project-item {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr) minmax(12rem, 0.55fr);
  gap: 2rem;
  padding-block: 2.25rem;
  border-bottom: 1px solid var(--line);
}

.project-item__status {
  color: var(--signal-dark);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1.5;
  text-transform: uppercase;
}

.project-item h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.65rem, 3vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
}

.project-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

.project-item__type {
  align-self: start;
  padding-top: 0.25rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.research-question {
  max-width: 62rem;
  margin: 0;
  font-size: clamp(1.75rem, 3.9vw, 3.4rem);
  letter-spacing: -0.04em;
  line-height: 1.15;
}

.research-question em {
  color: var(--signal-dark);
  font-style: italic;
  font-weight: 400;
}

.layers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 3rem;
  border: 1px solid var(--ink);
  background: var(--ink);
}

.layer {
  min-height: 15rem;
  padding: clamp(1.35rem, 3vw, 2.25rem);
  background: var(--paper);
}

.layer__number {
  display: block;
  margin-bottom: 2.5rem;
  color: var(--signal-dark);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.layer h3 {
  margin: 0 0 0.75rem;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  text-transform: none;
}

.layer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.formula {
  overflow-x: auto;
  max-width: var(--reading);
  margin-block: 2rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--ink);
  background: var(--paper-deep);
  font-family: var(--mono);
  font-size: 0.92rem;
  white-space: nowrap;
}

.profile-grid {
  display: grid;
  grid-template-columns: minmax(16rem, 0.62fr) minmax(0, 1.38fr);
  gap: clamp(3rem, 9vw, 9rem);
}

.profile-monogram {
  position: sticky;
  top: 2rem;
  display: grid;
  aspect-ratio: 4 / 5;
  place-items: center;
  align-self: start;
  background: var(--ink);
  color: var(--white);
  font-family: var(--sans);
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 900;
  letter-spacing: -0.08em;
}

.profile-monogram span {
  color: var(--signal);
}

.profile-copy h2 {
  max-width: 12ch;
  margin: 0 0 2rem;
  font-size: clamp(2.4rem, 5vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.profile-copy > p {
  max-width: var(--reading);
  font-size: 1.1rem;
}

.facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 3rem;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.fact {
  padding: 1.25rem;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.fact dt {
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.fact dd {
  margin: 0;
}

.article-header {
  padding-block: clamp(4rem, 8vw, 7rem) 3rem;
  border-bottom: 1px solid var(--ink);
}

.article-header__back {
  display: inline-block;
  margin-bottom: clamp(3rem, 7vw, 6rem);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.article-header h1 {
  max-width: 14ch;
  margin: 0 0 2rem;
  font-size: clamp(3rem, 7vw, 6.75rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.article-deck {
  max-width: 43rem;
  margin: 0 0 2.5rem;
  color: var(--muted);
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.5;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.article-body {
  display: grid;
  grid-template-columns: 8rem minmax(0, var(--reading));
  gap: 1.5rem;
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
}

.article-body__rail {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.article-prose > :first-child {
  margin-top: 0;
}

.article-prose > p:first-child::first-letter {
  float: left;
  margin: 0.12em 0.09em 0 0;
  color: var(--signal);
  font-size: 5.25rem;
  line-height: 0.75;
}

.article-prose p,
.article-prose li {
  font-size: 1.12rem;
  line-height: 1.75;
}

.article-prose h2 {
  margin: 3.5rem 0 1rem;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.article-prose blockquote {
  margin: 2.75rem 0;
  padding: 0 0 0 1.5rem;
  border-left: 0.35rem solid var(--signal);
  font-size: 1.35rem;
  font-style: italic;
  line-height: 1.55;
}

.article-prose hr {
  width: 5rem;
  margin: 4rem 0;
  border: 0;
  border-top: 0.3rem solid var(--signal);
}

.note-box {
  margin-top: 4rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.note-box strong {
  color: var(--ink);
}

.footer {
  background: var(--ink);
  color: var(--paper);
}

.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3rem;
  padding-block: 3.5rem;
}

.footer__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.035em;
}

.footer__note {
  max-width: 38rem;
  margin: 0;
  color: #aaa49a;
  font-size: 0.9rem;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
  align-content: start;
  justify-content: flex-end;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.footer__links a {
  color: var(--paper);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
  border-top: 1px solid #3f3d39;
  color: #8c877f;
  font-family: var(--mono);
  font-size: 0.66rem;
  text-transform: uppercase;
}

.not-found {
  display: grid;
  min-height: 68vh;
  place-items: center;
  padding-block: 5rem;
  text-align: center;
}

.not-found__code {
  display: block;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.8rem;
}

.not-found h1 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 500;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.not-found p {
  max-width: 35rem;
  margin: 0 auto 2rem;
  color: var(--muted);
}

@media (max-width: 58rem) {
  .masthead__inner {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding-block: 1rem;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero__grid,
  .page-intro__grid,
  .project-feature,
  .profile-grid {
    grid-template-columns: 1fr;
  }

  .hero h1,
  .page-intro h1 {
    max-width: 11ch;
  }

  .hero__aside,
  .page-intro__summary {
    max-width: 38rem;
  }

  .routes-grid {
    grid-template-columns: 1fr;
  }

  .route-card {
    min-height: 13rem;
  }

  .project-item {
    grid-template-columns: 6rem minmax(0, 1fr);
  }

  .project-item__type {
    grid-column: 2;
  }

  .profile-monogram {
    position: static;
    width: min(100%, 26rem);
  }
}

@media (max-width: 42rem) {
  body {
    background: var(--paper);
  }

  .container {
    width: min(calc(100% - 1.5rem), var(--page));
  }

  .brand__mark {
    width: 2.35rem;
    height: 2.35rem;
  }

  .nav {
    gap: 0 0.8rem;
    font-size: 0.7rem;
  }

  .utility-line__inner span:last-child {
    display: none;
  }

  .hero,
  .page-intro {
    padding-top: 3.75rem;
  }

  .hero h1,
  .page-intro h1 {
    font-size: clamp(3.2rem, 16vw, 5rem);
  }

  .section-heading,
  .content-grid,
  .article-body {
    grid-template-columns: 1fr;
  }

  .section-label,
  .article-body__rail {
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--line);
  }

  .article-row {
    grid-template-columns: 1fr 1.5rem;
    gap: 0.75rem;
  }

  .article-row__meta {
    grid-column: 1 / -1;
  }

  .layers,
  .facts {
    grid-template-columns: 1fr;
  }

  .project-item {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .project-item__type {
    grid-column: auto;
  }

  .footer__inner {
    grid-template-columns: 1fr;
  }

  .footer__links {
    justify-content: flex-start;
  }

  .footer__bottom {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  body {
    background: white;
    color: black;
  }

  .masthead,
  .utility-line,
  .footer,
  .article-header__back {
    display: none;
  }

  a {
    text-decoration: none;
  }

  .article-body {
    display: block;
    padding-top: 1rem;
  }

  .article-body__rail {
    display: none;
  }
}