:root {
  --paper: #f3efe4;
  --paper-deep: #e9e3d5;
  --ink: #20251f;
  --muted: #696e66;
  --green: #355a4d;
  --green-soft: #dce4dc;
  --line: #d2ccbe;
  --serif: "Newsreader", Georgia, serif;
  --sans: "Manrope", Arial, sans-serif;
  --mono: "DM Mono", monospace;
  color-scheme: light;
}

* {
  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: 1.7;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 0.9rem;
}

.skip-link:focus {
  top: 1rem;
}

.site-header,
.site-footer,
main {
  width: min(1180px, calc(100% - 64px));
  margin-inline: auto;
}

.site-header {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.3vw, 2rem);
  font-size: 0.82rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--green);
}

.hero {
  min-height: 560px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(240px, 0.55fr);
  gap: clamp(3rem, 8vw, 7.5rem);
  align-items: end;
  padding: 5.5rem 0 5rem;
}

.eyebrow,
.micro-label,
.section-number,
.item-meta {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.69rem;
}

.eyebrow,
.section-number,
.micro-label {
  color: var(--green);
}

.hero h1 {
  max-width: 780px;
  margin: 1.25rem 0 1.7rem;
  font-family: var(--serif);
  font-size: clamp(3.2rem, 5.5vw, 5.4rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.hero-intro {
  max-width: 690px;
  margin: 0 0 2rem;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  line-height: 1.55;
}

.text-link,
.quiet-link,
.download-link {
  color: var(--green);
  text-underline-offset: 0.3em;
  text-decoration-thickness: 1px;
}

.text-link {
  font-size: 0.85rem;
  font-weight: 600;
}

.current-question {
  border-left: 2px solid var(--green);
  padding: 0.3rem 0 0.3rem 1.5rem;
}

.current-question p {
  margin-top: 0;
}

.question {
  margin-bottom: 0.5rem;
  font-family: var(--serif);
  font-size: 1.75rem;
  line-height: 1.25;
}

.question-note {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.section {
  padding: 6.5rem 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 2rem;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 0.75fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: 4rem;
}

.section-heading h2 {
  margin: 0.1rem 0 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1;
}

.section-number {
  margin: 0;
}

.section-deck {
  max-width: 460px;
  margin: 0;
  color: var(--muted);
}

.section-deck-group .quiet-link {
  margin-top: 1rem;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
}

.portrait-placeholder {
  min-height: 510px;
}

.about-copy {
  max-width: 700px;
}

.about-copy h3 {
  margin: 1.25rem 0 1.5rem;
  font-family: var(--serif);
  font-size: clamp(2.3rem, 4.6vw, 4.8rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.03;
}

.about-copy > p:not(.micro-label) {
  max-width: 620px;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.15rem;
}

.about-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 2rem 0 1.2rem;
}

.about-keywords span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.academic-overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.academic-preview-card {
  min-height: 330px;
  padding: 1.5rem 2rem 2.5rem 0;
  border-bottom: 1px solid var(--line);
}

.academic-preview-card:nth-child(even) {
  padding-right: 0;
  padding-left: 2rem;
  border-left: 1px solid var(--line);
}

.academic-preview-card h3 {
  max-width: 520px;
  margin: 2.3rem 0 1rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.3vw, 3.2rem);
  font-weight: 400;
  line-height: 1.05;
}

.academic-preview-card p {
  max-width: 500px;
  color: var(--muted);
}

.research-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 2rem;
}

.research-item {
  border-top: 1px solid var(--line);
  padding: 1.3rem 0 3rem;
}

.featured-item {
  grid-column: 1 / -1;
}

.item-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  color: var(--muted);
}

.item-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(360px, 1.2fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.research-item h3,
.writing-entry h3,
.beyond-copy h3,
.note-placeholder h3 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  font-weight: 400;
  line-height: 1.1;
}

.research-item p,
.writing-entry p,
.beyond-copy p,
.note-placeholder p {
  max-width: 580px;
  color: var(--muted);
}

.quiet-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.8rem;
}

.image-placeholder {
  position: relative;
  isolation: isolate;
  display: grid;
  place-content: center;
  min-height: 260px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper-deep) 72%, transparent);
  color: var(--green);
  text-align: center;
}

.image-placeholder::before,
.image-placeholder::after {
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 50%;
  width: 140%;
  height: 1px;
  background: var(--line);
  content: "";
}

.image-placeholder::before {
  transform: translate(-50%, -50%) rotate(25deg);
}

.image-placeholder::after {
  transform: translate(-50%, -50%) rotate(-25deg);
}

.image-placeholder span {
  padding: 0.3rem 0.65rem;
  background: var(--paper-deep);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.image-placeholder small {
  width: fit-content;
  margin: 0.35rem auto 0;
  padding: 0.15rem 0.45rem;
  background: var(--paper-deep);
  color: var(--muted);
}

.image-placeholder-wide {
  min-height: 390px;
}

.compact-item:nth-child(2) {
  padding-right: 2rem;
}

.compact-item:nth-child(3) {
  border-left: 1px solid var(--line);
  padding-left: 2rem;
}

.topic-field {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 5rem;
}

.topic-field span {
  border: 1px solid var(--green);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.thinking-preview {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.pull-quote {
  max-width: 720px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5vw, 5.2rem);
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.note-placeholder {
  border-top: 2px solid var(--green);
  padding-top: 1.5rem;
}

.note-placeholder h3 {
  font-size: 2rem;
}

.writing-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 2rem;
}

.writing-entry {
  grid-column: span 4;
  border-top: 1px solid var(--line);
  padding-top: 1.4rem;
}

.writing-entry h3 {
  font-size: 2rem;
}

.book-placeholder {
  grid-column: span 4;
  min-height: 360px;
}

.beyond-layout {
  display: grid;
  grid-template-columns: minmax(380px, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
}

.movement-placeholder {
  min-height: 500px;
}

.beyond-copy h3 {
  font-size: clamp(2.2rem, 4vw, 4rem);
}

.pdf-shell {
  border: 1px solid var(--line);
  background: var(--paper-deep);
}

.pdf-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.pdf-toolbar p {
  margin: 0;
}

.download-link {
  white-space: nowrap;
  font-size: 0.8rem;
}

.pdf-embed {
  display: block;
  width: 100%;
  height: min(72vw, 760px);
  min-height: 480px;
  border: 0;
  background: #fff;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.4rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

.site-footer p {
  margin: 0;
}

.detail-header {
  width: min(1180px, calc(100% - 64px));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.8rem 2rem;
  padding: 1.25rem 0 0.8rem;
}

.detail-header .site-nav {
  justify-content: flex-end;
}

.detail-header .back-link {
  grid-column: 1 / -1;
  justify-self: start;
  border-left: 2px solid var(--green);
  padding: 0.15rem 0 0.15rem 0.75rem;
  color: var(--green);
  font-weight: 600;
}

.detail-main {
  width: min(1180px, calc(100% - 64px));
  margin-inline: auto;
}

.back-link {
  color: var(--muted);
  font-size: 0.78rem;
  text-decoration: none;
}

.back-link:hover {
  color: var(--green);
}

.project-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(420px, 1.15fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
  padding: 7rem 0 6rem;
}

.project-title h1,
.collection-hero h1 {
  margin: 1rem 0 1.6rem;
  font-family: var(--serif);
  font-size: clamp(3.2rem, 5.5vw, 5.4rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.project-summary,
.collection-intro {
  max-width: 650px;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.25rem;
  line-height: 1.6;
}

.project-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 2.5rem;
  border-top: 1px solid var(--line);
}

.project-facts div {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.project-facts div:nth-child(odd) {
  padding-right: 1rem;
}

.project-facts div:nth-child(even) {
  padding-left: 1rem;
  border-left: 1px solid var(--line);
}

.project-facts dt {
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-facts dd {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.project-visual {
  min-height: 560px;
}

.project-figure {
  margin: 0;
  align-self: center;
}

.project-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #fff;
}

.project-figure figcaption {
  margin-top: 0.8rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.67rem;
  line-height: 1.55;
}

.flood-page .project-title h1 {
  font-size: clamp(3.2rem, 6.2vw, 6.15rem);
}

.course-page .project-title h1 {
  font-size: clamp(3rem, 5.5vw, 5.5rem);
}

.course-figure img {
  background: var(--paper);
}

.course-purpose {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2.5rem, 7vw, 7rem);
  max-width: 980px;
  margin-left: auto;
}

.course-purpose p {
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.75;
}

.proof-pathway {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.proof-pathway article {
  min-height: 300px;
  padding: 1.5rem 1.4rem 2rem;
  border-bottom: 1px solid var(--line);
}

.proof-pathway article:first-child {
  padding-left: 0;
}

.proof-pathway article + article {
  border-left: 1px solid var(--line);
}

.proof-pathway article:last-child {
  padding-right: 0;
}

.proof-pathway h3 {
  margin: 2rem 0 1rem;
  font-family: var(--serif);
  font-size: clamp(1.65rem, 2.3vw, 2.35rem);
  font-weight: 400;
  line-height: 1.08;
}

.proof-pathway article > p:last-child {
  color: var(--muted);
  font-size: 0.86rem;
}

.conference-note {
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
  padding: 3.2rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.conference-note h2 {
  margin: 0 0 0.8rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.4vw, 3.3rem);
  font-weight: 400;
  line-height: 1.08;
}

.conference-note p {
  margin-top: 0;
  color: var(--muted);
}

.research-section {
  padding: 5.5rem 0;
  border-top: 1px solid var(--line);
}

.research-section-heading {
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
  margin-bottom: 3.5rem;
}

.research-section-heading h2 {
  max-width: 820px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.7rem, 5vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.method-grid article {
  min-height: 330px;
  padding: 1.5rem 1.7rem 2rem;
  border-bottom: 1px solid var(--line);
}

.method-grid article:first-child {
  padding-left: 0;
}

.method-grid article + article {
  border-left: 1px solid var(--line);
}

.method-grid article:last-child {
  padding-right: 0;
}

.method-grid h3,
.result-analysis h3 {
  margin: 2rem 0 1rem;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 2.8vw, 2.7rem);
  font-weight: 400;
  line-height: 1.08;
}

.method-grid article > p:last-child,
.result-analysis p,
.model-note p,
.sensitivity-note p {
  color: var(--muted);
}

.model-note {
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 8rem);
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.model-note span {
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.model-note p {
  margin: 0;
}

.result-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.result-metrics div {
  padding: 2rem 1.5rem 2.3rem;
}

.result-metrics div:first-child {
  padding-left: 0;
}

.result-metrics div + div {
  border-left: 1px solid var(--line);
}

.result-metrics strong {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2.7rem, 5vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1;
}

.result-metrics span {
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.result-analysis {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
  gap: clamp(3rem, 8vw, 8rem);
  padding: 4.5rem 0;
}

.result-analysis > div > p:not(.micro-label) {
  font-family: var(--serif);
  font-size: 1.12rem;
  line-height: 1.7;
}

.finding-callout {
  padding-top: 1.5rem;
  border-top: 2px solid var(--green);
}

.finding-callout h3 {
  font-size: clamp(2.2rem, 3.8vw, 3.8rem);
}

.sensitivity-note {
  max-width: 900px;
  padding: 1.8rem 0 0 2rem;
  border-left: 2px solid var(--green);
  font-family: var(--serif);
  font-size: 1.15rem;
}

.sensitivity-note p {
  margin: 0;
}

.sensitivity-note strong {
  color: var(--ink);
  font-weight: 500;
}

.compact-abstract {
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
  padding: 4.5rem 0;
  border-top: 1px solid var(--line);
}

.compact-abstract h2,
.compact-section-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1;
}

.compact-abstract p {
  max-width: 850px;
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.65;
}

.compact-research-section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line);
}

.compact-section-heading {
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
  margin-bottom: 3rem;
}

.compact-section-heading h2 {
  max-width: 760px;
}

.method-compact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.architecture-figure {
  margin: 0;
}

.architecture-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #fff;
}

.architecture-figure figcaption {
  margin-top: 0.7rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.66rem;
}

.research-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--muted);
  font-size: 0.82rem;
}

.research-table caption {
  padding: 0 0 0.8rem;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
}

.research-table th,
.research-table td {
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.research-table th {
  width: 38%;
  padding-right: 1rem;
  color: var(--ink);
  font-weight: 500;
}

.results-compact-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1.55fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.result-table td {
  color: var(--green);
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1;
}

.compact-findings {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem;
}

.compact-findings article {
  padding-top: 1.2rem;
  border-top: 2px solid var(--green);
}

.compact-findings h3 {
  margin: 1rem 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 400;
  line-height: 1.08;
}

.compact-findings article > p:last-child,
.compact-caveat,
.conference-inline p {
  color: var(--muted);
}

.compact-caveat {
  max-width: 850px;
  margin: 3rem 0 0 auto;
  padding-left: 1.5rem;
  border-left: 2px solid var(--green);
  font-family: var(--serif);
}

.compact-caveat strong {
  color: var(--ink);
  font-weight: 500;
}

.conference-inline {
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 8rem);
  margin-bottom: 2rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 0.77rem;
}

.conference-inline span {
  color: var(--green);
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.conference-inline p {
  margin: 0;
}

.project-body {
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
  padding: 5.5rem 0;
  border-top: 1px solid var(--line);
}

.project-body-label {
  margin: 0;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-body-copy {
  max-width: 760px;
}

.project-body-copy h2,
.document-heading h2,
.collection-section h2 {
  margin: 0 0 1.5rem;
  font-family: var(--serif);
  font-size: clamp(2.5rem, 4.5vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.project-body-copy p {
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.75;
}

.document-section {
  padding: 5.5rem 0 7rem;
  border-top: 1px solid var(--line);
}

.document-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.6fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: 3rem;
}

.document-heading p {
  margin: 0;
  color: var(--muted);
}

.project-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.project-nav a {
  padding: 2rem 0 2.5rem;
  color: var(--muted);
  text-decoration: none;
}

.project-nav a:last-child {
  border-left: 1px solid var(--line);
  padding-left: 2rem;
  text-align: right;
}

.project-nav a:hover {
  color: var(--green);
}

.collection-hero {
  max-width: 950px;
  padding: 8rem 0 6rem;
}

.collection-section {
  padding: 5.5rem 0;
  border-top: 1px solid var(--line);
}

.collection-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
}

.collection-card {
  min-height: 270px;
  padding: 1.6rem 0 2rem;
  border-top: 1px solid var(--line);
}

.collection-card h3 {
  margin: 1.5rem 0 1rem;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.15;
}

.collection-card p {
  max-width: 480px;
  color: var(--muted);
}

.collection-card .status {
  display: inline-block;
  margin-top: 1rem;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.external-note {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 820px) {
  .site-header,
  .site-footer,
  main,
  .detail-header,
  .detail-main {
    width: min(100% - 36px, 1180px);
  }

  .site-header {
    align-items: flex-start;
    padding: 1.3rem 0;
  }

  .site-header.detail-header {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .detail-header .site-nav {
    justify-content: flex-start;
  }

  .site-nav {
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 0.6rem 1.1rem;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 4rem;
    padding: 4.5rem 0 4.5rem;
  }

  .current-question {
    max-width: 390px;
  }

  .section {
    padding: 5rem 0;
  }

  .section-heading,
  .item-layout,
  .thinking-preview,
  .beyond-layout,
  .about-layout,
  .project-hero,
  .project-body,
  .document-heading,
  .conference-note,
  .research-section-heading,
  .result-analysis,
  .model-note,
  .compact-abstract,
  .compact-section-heading,
  .method-compact-layout,
  .results-compact-layout,
  .conference-inline {
    grid-template-columns: 1fr;
  }

  .project-hero {
    padding: 5.5rem 0 4.5rem;
  }

  .project-visual {
    min-height: 420px;
  }

  .project-body,
  .document-section,
  .collection-section,
  .research-section,
  .compact-research-section {
    padding: 4.5rem 0;
  }

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

  .course-purpose {
    grid-template-columns: 1fr;
  }

  .proof-pathway {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proof-pathway article:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .proof-pathway article:nth-child(even) {
    padding-right: 0;
  }

  .method-grid article:nth-child(n) {
    min-height: auto;
    padding: 1.5rem 0 2.5rem;
    border-left: 0;
  }

  .section-heading {
    margin-bottom: 3rem;
  }

  .image-placeholder-wide,
  .movement-placeholder,
  .portrait-placeholder {
    min-height: 380px;
  }

  .writing-entry,
  .book-placeholder {
    grid-column: span 6;
  }

  .book-placeholder {
    min-height: 290px;
  }
}

@media (max-width: 560px) {
  .site-header {
    display: block;
  }

  .site-nav {
    justify-content: flex-start;
    margin-top: 1rem;
  }

  .detail-header .site-nav {
    display: grid;
    grid-template-columns: repeat(3, max-content);
    margin-top: 0;
    gap: 0.45rem clamp(1rem, 4vw, 1.5rem);
  }

  .hero h1 {
    font-size: clamp(2.8rem, 11.5vw, 3.8rem);
  }

  .research-list,
  .writing-grid,
  .academic-overview-grid {
    display: block;
  }

  .academic-preview-card:nth-child(n) {
    min-height: auto;
    padding: 1.5rem 0 2.5rem;
    border-left: 0;
  }

  .compact-findings {
    grid-template-columns: 1fr;
  }

  .proof-pathway {
    grid-template-columns: 1fr;
  }

  .proof-pathway article:nth-child(n) {
    min-height: auto;
    padding: 1.5rem 0 2.5rem;
    border-left: 0;
  }

  .compact-item:nth-child(2),
  .compact-item:nth-child(3) {
    padding-left: 0;
    padding-right: 0;
    border-left: 0;
  }

  .writing-entry,
  .book-placeholder {
    margin-bottom: 2.5rem;
  }

  .topic-field {
    margin-bottom: 3.5rem;
  }

  .pdf-toolbar,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .pdf-embed {
    min-height: 420px;
  }

  .project-facts,
  .collection-grid,
  .project-nav,
  .result-metrics {
    grid-template-columns: 1fr;
  }

  .result-metrics div:nth-child(n) {
    padding: 1.3rem 0 1.6rem;
    border-left: 0;
  }

  .result-metrics div + div {
    border-top: 1px solid var(--line);
  }

  .project-facts div:nth-child(n) {
    padding-left: 0;
    padding-right: 0;
    border-left: 0;
  }

  .project-nav a:last-child {
    border-top: 1px solid var(--line);
    border-left: 0;
    padding-left: 0;
    text-align: left;
  }

  .external-note {
    align-items: flex-start;
    flex-direction: column;
  }
}

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