:root {
  --ink: #07130f;
  --ink-soft: #10231c;
  --paper: #f3f5ee;
  --paper-deep: #e6ebdf;
  --white: #fbfcf8;
  --signal: #a7ed4a;
  --signal-dark: #6ca91e;
  --teal: #43d4b1;
  --sky: #9bbcff;
  --muted: #9faaa4;
  --line: rgba(7, 19, 15, 0.15);
  --line-light: rgba(255, 255, 255, 0.15);
  --display: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --body: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shell: min(1180px, calc(100vw - 48px));
  --radius: 28px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  transform: translateY(-150%);
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--signal);
  color: var(--ink);
  font-weight: 700;
}

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

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 0;
  width: 100%;
  border-bottom: 1px solid var(--line-light);
}

.header-inner {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--signal);
  border-radius: 50%;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.brand-name {
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
  font-weight: 600;
}

.nav a {
  text-decoration: none;
}

.nav a:not(.nav-cta) {
  color: #c8d1cc;
}

.nav a:not(.nav-cta):hover {
  color: var(--white);
}

.nav a[aria-current="page"] {
  color: var(--signal);
}

.nav-cta {
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
}

.nav-cta:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 172px 0 0;
  background:
    radial-gradient(circle at 78% 35%, rgba(67, 212, 177, 0.12), transparent 25%),
    radial-gradient(circle at 20% 0%, rgba(155, 188, 255, 0.1), transparent 29%),
    var(--ink);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 80%);
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 600px;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  align-items: center;
  gap: 70px;
  padding-bottom: 88px;
}

.hero-copy {
  max-width: 720px;
  animation: hero-rise 760ms ease-out both;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow-dark {
  color: #426b36;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(167, 237, 74, 0.12);
}

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

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-family: var(--display);
  font-size: clamp(58px, 7vw, 94px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.93;
}

h1 em {
  display: block;
  color: var(--signal);
  font-weight: 400;
}

.hero-intro {
  max-width: 660px;
  margin-bottom: 34px;
  color: #cbd5cf;
  font-size: clamp(18px, 1.8vw, 21px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 50px;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--signal);
  color: var(--ink);
  box-shadow: 0 14px 34px rgba(167, 237, 74, 0.14);
}

.button-primary:hover {
  background: #b9fb63;
  box-shadow: 0 16px 38px rgba(167, 237, 74, 0.22);
}

.text-link {
  color: #dbe3de;
  font-size: 14px;
  font-weight: 650;
  text-underline-offset: 5px;
}

.hero-visual {
  position: relative;
  display: grid;
  min-height: 470px;
  place-items: center;
  animation: hero-rise 760ms 120ms ease-out both;
}

.portrait-wrap {
  position: relative;
  z-index: 3;
  width: min(280px, 70vw);
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 45% 45% 18% 45%;
  background: #bca895;
  box-shadow: 0 36px 90px rgba(0, 0, 0, 0.36);
}

.portrait-wrap::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, transparent 45%, rgba(7, 19, 15, 0.34));
  content: "";
}

.portrait-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: auto;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(167, 237, 74, 0.28);
  border-radius: 50%;
}

.orbit-one {
  width: 380px;
  height: 380px;
  transform: rotate(-12deg);
}

.orbit-two {
  width: 465px;
  height: 250px;
  transform: rotate(34deg);
  border-color: rgba(67, 212, 177, 0.2);
}

.visual-label {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #dce5df;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.visual-label span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 16px rgba(167, 237, 74, 0.8);
}

.label-research {
  top: 48px;
  left: 22px;
}

.label-scale {
  right: 8px;
  bottom: 128px;
}

.label-scale span {
  background: var(--teal);
}

.current-card {
  position: absolute;
  z-index: 5;
  right: 0;
  bottom: 18px;
  width: 220px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  background: rgba(16, 35, 28, 0.9);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(14px);
}

.card-kicker {
  display: block;
  margin-bottom: 4px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.current-card strong {
  display: block;
  font-family: var(--display);
  font-size: 27px;
  font-weight: 400;
}

.current-card p {
  margin: 1px 0 0;
  color: #c2cec7;
  font-size: 12px;
  line-height: 1.45;
}

.proof-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-light);
}

.proof-strip > div {
  display: grid;
  min-height: 142px;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 14px;
  padding: 24px;
  border-right: 1px solid var(--line-light);
}

.proof-strip > div:first-child {
  padding-left: 0;
}

.proof-strip > div:last-child {
  border-right: 0;
}

.proof-strip strong {
  color: var(--signal);
  font-family: var(--display);
  font-size: 38px;
  font-weight: 400;
  line-height: 1;
}

.proof-strip span {
  color: #9fada5;
  font-size: 11px;
  line-height: 1.45;
}

.section {
  padding: 128px 0;
}

.section-light,
.section-path,
.contact {
  background: var(--paper);
  color: var(--ink);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 62px;
}

.section-heading h2,
.thesis h2,
.contact h2 {
  margin-bottom: 24px;
  font-family: var(--display);
  font-size: clamp(44px, 5.7vw, 72px);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.section-heading > p:last-child {
  max-width: 630px;
  margin: 0;
  color: #46554e;
  font-size: 18px;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.focus-card {
  min-height: 350px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.42);
  transition: transform 200ms ease, border-color 200ms ease;
}

.focus-card:hover {
  transform: translateY(-5px);
  border-color: rgba(7, 19, 15, 0.32);
}

.focus-card-accent {
  background: var(--ink-soft);
  color: var(--white);
}

.focus-symbol {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  margin-bottom: 92px;
  padding: 0 12px;
  border: 1px solid currentColor;
  border-radius: 999px;
  color: var(--signal-dark);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.focus-card-accent .focus-symbol {
  color: var(--signal);
}

.focus-card h3 {
  margin-bottom: 14px;
  font-family: var(--display);
  font-size: 30px;
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.focus-card p {
  margin-bottom: 0;
  color: #536159;
  font-size: 14px;
}

.focus-card-accent p {
  color: #b9c7bf;
}

.thesis {
  padding: 114px 0;
  background: var(--signal);
  color: var(--ink);
}

.thesis-layout {
  display: grid;
  grid-template-columns: 0.35fr 1.65fr;
  gap: 70px;
}

.thesis-index {
  margin-top: 11px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.thesis h2 {
  max-width: 870px;
  margin-bottom: 28px;
  font-size: clamp(52px, 7vw, 94px);
}

.thesis div > p {
  max-width: 800px;
  margin-bottom: 30px;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.55;
}

.thesis-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 5px;
  border-bottom: 2px solid currentColor;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: gap 180ms ease, opacity 180ms ease;
}

.thesis-link:hover {
  gap: 17px;
  opacity: 0.72;
}

.section-exploring {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 18%, rgba(67, 212, 177, 0.1), transparent 24%),
    radial-gradient(circle at 9% 90%, rgba(155, 188, 255, 0.08), transparent 27%),
    var(--ink);
}

.exploring-field {
  position: absolute;
  inset: 0;
  opacity: 0.6;
  pointer-events: none;
}

.exploring-field::before,
.exploring-field::after {
  position: absolute;
  border: 1px solid rgba(167, 237, 74, 0.13);
  border-radius: 50%;
  content: "";
}

.exploring-field::before {
  top: 70px;
  right: -150px;
  width: 480px;
  height: 480px;
}

.exploring-field::after {
  top: 172px;
  right: -50px;
  width: 280px;
  height: 280px;
  border-color: rgba(67, 212, 177, 0.16);
}

.exploring-field span {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 20px rgba(167, 237, 74, 0.55);
}

.exploring-field span:nth-child(1) {
  top: 15%;
  right: 16%;
}

.exploring-field span:nth-child(2) {
  top: 27%;
  right: 7%;
  background: var(--teal);
}

.exploring-field span:nth-child(3) {
  top: 48%;
  right: 13%;
}

.exploring-field span:nth-child(4) {
  right: 5%;
  bottom: 23%;
  background: var(--sky);
}

.exploring-field span:nth-child(5) {
  right: 20%;
  bottom: 12%;
  background: var(--teal);
}

.section-exploring .shell {
  position: relative;
  z-index: 1;
}

.exploring-header {
  display: grid;
  grid-template-columns: 0.6fr 1.4fr;
  gap: 70px;
  margin-bottom: 66px;
}

.working-label {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: #8fa097;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.working-label span {
  padding: 7px 10px;
  border: 1px solid rgba(167, 237, 74, 0.34);
  border-radius: 999px;
  color: var(--signal);
}

.exploring-lead h2 {
  max-width: 840px;
  margin-bottom: 20px;
  font-family: var(--display);
  font-size: clamp(43px, 5.3vw, 68px);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1;
}

.exploring-lead > p {
  margin: 0;
  color: var(--teal);
  font-family: var(--display);
  font-size: clamp(25px, 3vw, 38px);
  font-style: italic;
  line-height: 1.15;
}

.exploring-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 18px;
}

.exploring-card {
  min-height: 330px;
  padding: 30px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

.exploring-number {
  display: block;
  margin-bottom: 76px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.exploring-card h3 {
  margin-bottom: 15px;
  font-family: var(--display);
  font-size: 29px;
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.exploring-card p {
  margin: 0;
  color: #aebcb4;
  font-size: 14px;
}

.exploring-question {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 64px;
  padding: 34px 36px;
  border: 1px solid rgba(167, 237, 74, 0.3);
  border-radius: var(--radius);
  background: rgba(167, 237, 74, 0.055);
}

.question-label {
  margin-bottom: 12px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.exploring-question > div:first-child > p:last-child {
  max-width: 720px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(23px, 2.8vw, 35px);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.exploring-action {
  align-self: end;
}

.exploring-action p {
  margin-bottom: 18px;
  color: #87988e;
  font-size: 11px;
  line-height: 1.5;
}

.exploring-link {
  color: var(--signal);
  font-size: 13px;
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.exploring-link:hover {
  color: #c4ff77;
}

.section-path {
  position: relative;
  overflow: hidden;
}

.section-path::before {
  position: absolute;
  top: 80px;
  right: -120px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(67, 212, 177, 0.25);
  border-radius: 50%;
  content: "";
}

.path-heading {
  position: relative;
}

.trajectory {
  position: relative;
  max-width: 940px;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
}

.trajectory::before {
  position: absolute;
  top: 34px;
  bottom: 68px;
  left: 35px;
  width: 1px;
  background: linear-gradient(var(--signal-dark), var(--teal), var(--sky));
  content: "";
}

.trajectory li {
  position: relative;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 32px;
  padding-bottom: 72px;
}

.trajectory li:last-child {
  padding-bottom: 0;
}

.trajectory-marker {
  position: relative;
  z-index: 2;
  display: grid;
  width: 70px;
  height: 70px;
  place-items: center;
  border: 1px solid rgba(7, 19, 15, 0.22);
  border-radius: 50%;
  background: var(--paper);
}

.trajectory-marker span {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
}

.trajectory-copy {
  padding: 5px 0 0;
}

.trajectory-label {
  margin-bottom: 10px;
  color: #4f715a;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.trajectory-copy h3 {
  margin-bottom: 14px;
  font-family: var(--display);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.trajectory-copy > p:last-child {
  max-width: 700px;
  margin-bottom: 0;
  color: #536159;
  font-size: 15px;
}

.section-research {
  background: var(--ink-soft);
}

.research-header {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: end;
  gap: 80px;
  margin-bottom: 66px;
}

.research-header .section-heading {
  margin-bottom: 0;
}

.research-intro {
  margin-bottom: 8px;
  color: #aebcb4;
  font-size: 16px;
}

.publication-list {
  border-top: 1px solid var(--line-light);
}

.publication {
  position: relative;
  display: grid;
  grid-template-columns: 185px 1fr 64px;
  align-items: center;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--line-light);
  text-decoration: none;
  transition: color 180ms ease, padding 180ms ease;
}

.publication:hover {
  padding-left: 12px;
  color: var(--signal);
}

.publication-meta,
.publication-authors {
  color: #8fa097;
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.5;
  text-transform: uppercase;
}

.publication strong {
  max-width: 720px;
  font-family: var(--display);
  font-size: clamp(20px, 2.4vw, 29px);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.22;
}

.publication-authors {
  grid-column: 2;
  margin-top: -22px;
  text-transform: none;
}

.publication-arrow {
  grid-column: 3;
  grid-row: 1 / span 2;
  justify-self: end;
  font-size: 25px;
}

.contact {
  padding: 100px 0;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 80px;
}

.contact h2 {
  max-width: 720px;
  margin-bottom: 0;
}

.contact-copy p {
  margin-bottom: 26px;
  color: #4d5d54;
  font-size: 17px;
}

.button-dark {
  background: var(--ink);
  color: var(--white);
}

.button-dark:hover {
  background: #173127;
}

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

.article-page .site-header {
  background: rgba(7, 19, 15, 0.72);
  backdrop-filter: blur(16px);
}

.article-hero {
  position: relative;
  overflow: hidden;
  padding: 140px 0 88px;
  background:
    radial-gradient(circle at 82% 12%, rgba(67, 212, 177, 0.13), transparent 25%),
    radial-gradient(circle at 10% 80%, rgba(155, 188, 255, 0.08), transparent 30%),
    var(--ink);
  color: var(--white);
}

.article-grid {
  position: absolute;
  inset: 0;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 92%);
}

.article-hero-inner {
  position: relative;
  z-index: 1;
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 54px;
  color: #9daca3;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.article-back:hover {
  color: var(--signal);
}

.article-hero .eyebrow {
  margin-bottom: 28px;
}

.article-hero h1 {
  max-width: 1020px;
  margin-bottom: 30px;
  font-size: clamp(58px, 8.3vw, 108px);
  line-height: 0.93;
}

.article-subtitle {
  max-width: 780px;
  margin-bottom: 28px;
  color: var(--teal);
  font-family: var(--display);
  font-size: clamp(27px, 3.4vw, 44px);
  font-style: italic;
  line-height: 1.15;
}

.article-meta {
  margin-bottom: 58px;
  color: #95a69c;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-meta span {
  padding-inline: 8px;
  color: var(--signal);
}

.article-cover {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: #03100c;
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.38);
}

.article-cover img {
  width: 100%;
  height: auto;
}

.article-body {
  padding: 108px 0 124px;
  background: var(--paper);
}

.article-content {
  position: relative;
  width: min(760px, calc(100vw - 48px));
  margin-inline: auto;
}

.article-content::before {
  position: absolute;
  top: 248px;
  bottom: 430px;
  left: -54px;
  width: 1px;
  background: linear-gradient(var(--signal-dark), var(--teal), var(--sky));
  content: "";
}

.article-body p,
.article-questions {
  color: #33453b;
  font-size: 18px;
  line-height: 1.78;
}

.article-body p {
  margin-bottom: 28px;
}

.article-lede {
  margin-bottom: 42px !important;
  color: var(--ink) !important;
  font-family: var(--display);
  font-size: clamp(27px, 3vw, 36px) !important;
  letter-spacing: -0.025em;
  line-height: 1.3 !important;
}

.article-content > h2 {
  position: relative;
  margin: 78px 0 28px;
  font-family: var(--display);
  font-size: clamp(38px, 4.8vw, 54px);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.article-content > h2::before {
  position: absolute;
  top: 0.43em;
  left: -60px;
  width: 13px;
  height: 13px;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background: var(--signal-dark);
  box-shadow: 0 0 0 1px rgba(7, 19, 15, 0.2);
  content: "";
}

.article-questions {
  margin: 6px 0 46px;
  padding: 0;
  list-style: none;
}

.article-questions li {
  position: relative;
  margin-bottom: 17px;
  padding: 0 0 17px 34px;
  border-bottom: 1px solid var(--line);
}

.article-questions li::before {
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 5px rgba(67, 212, 177, 0.12);
  content: "";
}

.article-note {
  margin-top: 64px;
  padding: 28px 30px;
  border-left: 4px solid var(--signal-dark);
  background: var(--paper-deep);
}

.article-note strong {
  display: block;
  margin-bottom: 9px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.article-note p {
  margin: 0;
  color: #526158;
  font-size: 14px;
  line-height: 1.65;
}

.article-end {
  margin-top: 80px;
  padding-top: 42px;
  border-top: 1px solid var(--line);
}

.article-end > p {
  max-width: 650px;
  color: var(--ink);
  font-family: var(--display);
  font-size: 30px;
  line-height: 1.25;
}

.article-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.article-home-link {
  color: #3f5549;
  font-size: 13px;
  font-weight: 750;
  text-underline-offset: 5px;
}

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

.site-footer {
  padding: 30px 0;
  border-top: 1px solid var(--line-light);
  background: var(--ink);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: #84948b;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-inner p {
  margin: 0;
}

a:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: 4px;
}

@keyframes hero-rise {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@media (max-width: 960px) {
  :root {
    --shell: min(100% - 38px, 760px);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    min-height: 440px;
  }

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

  .proof-strip > div:first-child {
    padding-left: 24px;
  }

  .proof-strip > div:nth-child(2) {
    border-right: 0;
  }

  .proof-strip > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line-light);
  }

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

  .focus-card {
    min-height: 0;
  }

  .focus-symbol {
    margin-bottom: 54px;
  }

  .exploring-header,
  .exploring-question {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .exploring-card {
    min-height: 0;
  }

  .exploring-number {
    margin-bottom: 46px;
  }

  .research-header,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .publication {
    grid-template-columns: 155px 1fr 40px;
  }

  .article-content::before,
  .article-content > h2::before {
    display: none;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: calc(100% - 30px);
  }

  .site-header {
    position: absolute;
  }

  .header-inner {
    min-height: 70px;
  }

  .brand-name {
    display: none;
  }

  .nav {
    gap: 15px;
    font-size: 11px;
  }

  .nav a:nth-child(2),
  .nav a:nth-child(3),
  .nav a:nth-child(4) {
    display: none;
  }

  .nav-cta {
    padding: 8px 11px;
  }

  .hero {
    padding-top: 130px;
  }

  .hero-layout {
    min-height: 0;
    padding-bottom: 60px;
  }

  h1 {
    font-size: clamp(50px, 16vw, 70px);
  }

  .hero-intro {
    font-size: 17px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-visual {
    min-height: 380px;
  }

  .portrait-wrap {
    width: 230px;
  }

  .orbit-one {
    width: 310px;
    height: 310px;
  }

  .orbit-two {
    width: 340px;
    height: 190px;
  }

  .label-research {
    top: 36px;
    left: 0;
  }

  .label-scale {
    right: 0;
    bottom: 86px;
  }

  .current-card {
    right: 8px;
    bottom: 0;
    width: 190px;
  }

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

  .proof-strip > div {
    min-height: 110px;
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .proof-strip > div:first-child {
    padding-left: 0;
  }

  .proof-strip > div:nth-child(2) {
    border-bottom: 1px solid var(--line-light);
  }

  .section {
    padding: 88px 0;
  }

  .section-heading {
    margin-bottom: 42px;
  }

  .section-heading h2,
  .thesis h2,
  .contact h2 {
    font-size: clamp(40px, 13vw, 58px);
  }

  .focus-card {
    padding: 26px;
  }

  .focus-symbol {
    margin-bottom: 38px;
  }

  .thesis {
    padding: 80px 0;
  }

  .thesis-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .article-hero {
    padding: 112px 0 62px;
  }

  .article-back {
    margin-bottom: 42px;
  }

  .article-hero h1 {
    font-size: clamp(47px, 15.5vw, 68px);
  }

  .article-subtitle {
    font-size: clamp(25px, 8vw, 34px);
  }

  .article-meta {
    margin-bottom: 40px;
    line-height: 1.7;
  }

  .article-cover {
    border-radius: 18px;
  }

  .article-body {
    padding: 74px 0 88px;
  }

  .article-content {
    width: calc(100% - 30px);
  }

  .article-body p,
  .article-questions {
    font-size: 17px;
    line-height: 1.72;
  }

  .article-content > h2 {
    margin-top: 62px;
    font-size: clamp(35px, 11vw, 47px);
  }

  .article-note {
    padding: 24px;
  }

  .article-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .exploring-header {
    margin-bottom: 42px;
  }

  .exploring-lead h2 {
    font-size: clamp(39px, 12vw, 54px);
  }

  .exploring-card {
    padding: 26px;
  }

  .exploring-number {
    margin-bottom: 34px;
  }

  .exploring-question {
    padding: 28px 26px;
  }

  .trajectory {
    margin: 0;
  }

  .trajectory::before {
    left: 24px;
  }

  .trajectory li {
    grid-template-columns: 50px 1fr;
    gap: 18px;
    padding-bottom: 56px;
  }

  .trajectory-marker {
    width: 50px;
    height: 50px;
  }

  .trajectory-copy {
    padding-top: 0;
  }

  .publication {
    grid-template-columns: 1fr 32px;
    gap: 12px;
    padding: 28px 0;
  }

  .publication-meta,
  .publication strong,
  .publication-authors {
    grid-column: 1;
  }

  .publication-authors {
    margin-top: 0;
  }

  .publication-arrow {
    grid-column: 2;
    grid-row: 1 / span 3;
  }

  .contact {
    padding: 78px 0;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
  }
}

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

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