:root {
  --paper: #ffffff;
  --paper-deep: #f3f1ec;
  --ink: #15191d;
  --muted: #62635e;
  --rule: #d8d5cf;
  --accent: #275d6f;
  --accent-rust: #8d4d38;
  --white: #fffaf1;
  --sans: "IBM Plex Sans", Arial, sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  gap: 32px;
  align-items: stretch;
  min-height: 76px;
  border-bottom: 1px solid var(--rule);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.wordmark {
  display: grid;
  align-content: center;
  padding: 14px 28px;
  border-right: 1px solid var(--rule);
  text-decoration: none;
}

.wordmark span {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 650;
  line-height: 1;
}

.wordmark small {
  margin-top: 7px;
  color: var(--muted);
  font-size: 13px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 0 28px;
}

.nav-links a {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] {
  color: var(--accent);
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  border-bottom: 1px solid var(--rule);
}

.hero-kicker {
  padding: 28px;
  border-bottom: 1px solid var(--rule);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.65fr);
  gap: 48px;
  align-items: end;
  padding: clamp(84px, 9vw, 150px) 28px clamp(64px, 7vw, 112px);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 14ch;
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: clamp(56px, 7.4vw, 116px);
  font-weight: 650;
  line-height: 0.98;
  overflow-wrap: normal;
}

.hero-copy {
  max-width: 440px;
  border-left: 1px solid var(--rule);
  padding-left: 28px;
  color: var(--muted);
  font-size: 18px;
}

.hero-copy p:last-child,
.brief p,
.track p,
.publication p,
.method-copy p,
.people-copy p,
.site-footer p {
  margin-bottom: 0;
}

.hero-register {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
}

.hero-register a {
  min-height: 82px;
  display: flex;
  align-items: center;
  padding: 18px 28px;
  border-right: 1px solid var(--rule);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  text-decoration: none;
}

.hero-register a:hover,
.hero-register a:focus-visible {
  color: var(--accent);
  background: var(--paper-deep);
}

.hero-register a:last-child {
  border-right: 0;
}

.brief {
  padding: 7vw 28px;
  border-bottom: 1px solid var(--rule);
}

.brief p {
  max-width: 1040px;
  font-family: var(--serif);
  font-size: clamp(34px, 5vw, 76px);
  font-weight: 500;
  line-height: 1.04;
}

.section {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  border-bottom: 1px solid var(--rule);
}

.section-label {
  padding: 28px;
  border-right: 1px solid var(--rule);
}

.section-label span,
.publication-meta {
  color: var(--accent-rust);
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
}

.section-label h2 {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 650;
  line-height: 1;
}

.track-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(210px, 1fr));
}

.track,
.publication {
  min-height: 340px;
  padding: 28px;
  border-right: 1px solid var(--rule);
}

.track:last-child,
.publication:last-child {
  border-right: 0;
}

.track span {
  display: block;
  margin-bottom: 92px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
}

.track h3,
.publication h3 {
  margin-bottom: 16px;
  font-family: var(--serif);
  font-size: clamp(27px, 2.2vw, 34px);
  font-weight: 650;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.track p,
.publication p,
.method-copy,
.people-copy {
  color: var(--muted);
  font-size: 17px;
}

.publication-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1.45fr) repeat(2, minmax(230px, 1fr));
}

.publication {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--paper);
}

.publication.featured {
  background: var(--ink);
  color: var(--white);
}

.publication.featured p {
  color: #d9d0c0;
}

.publication a {
  margin-top: auto;
  color: inherit;
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
}

.method-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(280px, 0.8fr);
  min-height: 560px;
}

.system-diagram {
  position: relative;
  min-height: 560px;
  border-right: 1px solid var(--rule);
  background:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 120px 120px;
}

.system-diagram::before,
.system-diagram::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transform-origin: left center;
}

.system-diagram::before {
  width: 42%;
  height: 1px;
  left: 27%;
  top: 42%;
  transform: rotate(22deg);
}

.system-diagram::after {
  width: 39%;
  height: 1px;
  left: 31%;
  top: 60%;
  transform: rotate(-19deg);
}

.diagram-node {
  position: absolute;
  width: 178px;
  min-height: 106px;
  padding: 18px;
  border: 1px solid var(--ink);
  background: var(--paper);
}

.diagram-node span {
  display: block;
  margin-bottom: 18px;
  color: var(--accent-rust);
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
}

.diagram-node strong {
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 650;
  line-height: 1;
}

.node-one {
  left: 11%;
  top: 20%;
}

.node-two {
  right: 12%;
  top: 27%;
}

.node-three {
  left: 35%;
  bottom: 16%;
  border-color: var(--accent);
}

.method-copy {
  display: grid;
  align-content: center;
  gap: 40px;
  padding: 40px;
}

.projection-control {
  border-top: 1px solid var(--rule);
  padding-top: 26px;
}

.projection-control label,
.projection-control output {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
}

.projection-control output {
  display: inline-block;
  margin-left: 18px;
  color: var(--accent);
}

input[type="range"] {
  display: block;
  width: 100%;
  margin: 20px 0;
  accent-color: var(--accent);
}

#projectionText {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.12;
}

.people-copy {
  min-height: 360px;
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(240px, 0.6fr);
  gap: 56px;
  align-items: center;
  padding: 40px;
}

.people-copy p {
  max-width: 720px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 54px);
  line-height: 1.07;
}

.people-lines {
  display: grid;
  gap: 28px;
}

.people-lines span {
  display: block;
  height: 86px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: end;
  padding: 40px 28px;
  background: var(--ink);
  color: var(--white);
}

.site-footer h2 {
  margin-bottom: 8px;
  font-family: var(--serif);
  font-size: 42px;
  line-height: 1;
}

.site-footer p {
  color: #d9d0c0;
}

.site-footer a {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
}

.page-hero {
  min-height: 430px;
  display: grid;
  grid-template-columns: minmax(220px, 0.35fr) minmax(0, 1fr);
  gap: 48px;
  align-items: end;
  padding: clamp(80px, 10vw, 150px) 28px 56px;
  border-bottom: 1px solid var(--rule);
}

.page-number {
  align-self: start;
  color: var(--accent-rust);
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
}

.page-hero h1 {
  max-width: 10ch;
  font-size: clamp(56px, 8vw, 124px);
}

.page-hero p {
  max-width: 860px;
  margin: 28px 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(28px, 3.1vw, 52px);
  line-height: 1.08;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(210px, 1fr));
}

.preview-link {
  min-height: 310px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px;
  border-right: 1px solid var(--rule);
  text-decoration: none;
}

.preview-link:last-child {
  border-right: 0;
}

.preview-link span,
.contact-card span {
  color: var(--accent-rust);
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
}

.preview-link h3 {
  margin: auto 0 0;
  font-family: var(--serif);
  font-size: clamp(31px, 3vw, 48px);
  line-height: 1;
}

.preview-link p {
  color: var(--muted);
  font-size: 17px;
}

.preview-link:hover,
.preview-link:focus-visible {
  background: var(--paper-deep);
}

.text-band {
  padding: clamp(56px, 7vw, 104px) 28px;
  border-bottom: 1px solid var(--rule);
}

.text-band p {
  max-width: 1050px;
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: clamp(32px, 4.4vw, 68px);
  line-height: 1.06;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(210px, 1fr));
}

.contact-card {
  min-height: 270px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 28px;
  border-right: 1px solid var(--rule);
}

.contact-card:last-child {
  border-right: 0;
}

.contact-card a,
.contact-card address,
.contact-card p {
  margin: auto 0 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(25px, 2.2vw, 34px);
  font-style: normal;
  line-height: 1.12;
  overflow-wrap: anywhere;
}

@media (max-width: 980px) {
  .site-header,
  .hero-grid,
  .section,
  .method-grid,
  .people-copy,
  .page-hero,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .wordmark,
  .section-label,
  .system-diagram {
    border-right: 0;
  }

  .nav-links {
    overflow-x: auto;
    border-top: 1px solid var(--rule);
    padding: 16px 20px;
  }

  .hero-grid {
    align-items: start;
    padding: 72px 20px;
  }

  .hero-copy {
    border-left: 0;
    padding-left: 0;
  }

  .hero-register,
  .track-list,
  .publication-grid,
  .preview-grid,
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .track:nth-child(2),
  .publication:nth-child(2),
  .preview-link:nth-child(2),
  .contact-card:nth-child(2) {
    border-right: 0;
  }

  .track,
  .publication,
  .preview-link,
  .contact-card {
    min-height: 280px;
    border-bottom: 1px solid var(--rule);
  }

  .page-hero {
    min-height: auto;
    padding: 72px 20px 48px;
  }
}

@media (max-width: 640px) {
  .wordmark,
  .hero-kicker,
  .brief,
  .section-label,
  .track,
  .publication,
  .preview-link,
  .method-copy,
  .people-copy,
  .contact-card,
  .site-footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-register,
  .track-list,
  .publication-grid,
  .preview-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-register a,
  .track,
  .publication,
  .preview-link,
  .contact-card {
    border-right: 0;
  }

  h1 {
    max-width: 11ch;
    font-size: 52px;
  }

  .page-hero h1 {
    font-size: 58px;
  }

  .page-hero p {
    font-size: 28px;
  }

  .brief p {
    font-size: 34px;
  }

  .system-diagram {
    min-height: 520px;
    background-size: 88px 88px;
  }

  .diagram-node {
    width: 150px;
  }

  .node-one {
    left: 7%;
    top: 18%;
  }

  .node-two {
    right: 6%;
    top: 36%;
  }

  .node-three {
    left: 22%;
    bottom: 12%;
  }
}