:root {
  --ink: #142531;
  --ink-2: #1c3442;
  --paper: #f3f0e7;
  --paper-2: #e8e2d5;
  --white: #fffdf7;
  --lime: #b9f227;
  --cyan: #49c6d8;
  --muted: #65747b;
  --line: rgba(20, 37, 49, 0.19);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shell: min(1180px, calc(100% - 40px));
  --shadow: 0 22px 60px rgba(9, 22, 30, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  z-index: 100;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.11;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(20, 37, 49, 0.08) 0,
    rgba(20, 37, 49, 0.08) 1px,
    transparent 1px,
    transparent 4px
  );
}

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

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

a:hover {
  text-decoration-thickness: 2px;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--lime);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: none;
}

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

.site-header {
  position: sticky;
  z-index: 90;
  top: 0;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(20, 37, 49, 0.97);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.wordmark-block {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--ink);
  background: var(--lime);
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 800;
}

.wordmark strong,
.wordmark small {
  display: block;
}

.wordmark strong {
  letter-spacing: 0.065em;
}

.wordmark small {
  color: #b6c2c7;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.09em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.primary-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 10px;
  color: #eaf0f2;
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  color: var(--lime);
}

.primary-nav .nav-cv {
  margin-left: 7px;
  padding-inline: 15px;
  color: var(--ink);
  background: var(--lime);
}

.primary-nav .nav-cv:hover {
  color: var(--ink);
  background: var(--cyan);
}

.menu-button {
  display: none;
  min-width: 48px;
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  background: transparent;
  font: 700 0.75rem var(--mono);
  cursor: pointer;
}

.eyebrow,
.section-index,
.status-chip,
.meta-line,
.console-bar,
.console-readout,
.kicker {
  font-family: var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 78% 35%, rgba(73, 198, 216, 0.13), transparent 28%),
    linear-gradient(130deg, var(--ink) 0%, #0d1d27 100%);
}

.hero::after {
  position: absolute;
  right: -120px;
  bottom: -170px;
  width: 480px;
  height: 480px;
  border: 1px solid rgba(185, 242, 39, 0.16);
  border-radius: 50%;
  content: "";
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 680px;
  padding-block: clamp(76px, 10vw, 130px);
  align-items: center;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(48px, 7vw, 96px);
}

.eyebrow,
.kicker {
  margin: 0 0 20px;
  color: var(--lime);
  font-size: 0.76rem;
  font-weight: 750;
}

.hero h1,
.page-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.1rem, 7vw, 6.8rem);
  font-weight: 400;
  line-height: 0.97;
  letter-spacing: -0.055em;
}

.hero-lede {
  max-width: 720px;
  margin: 30px 0 0;
  color: #d4dde0;
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
}

.button-row {
  display: flex;
  margin-top: 34px;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.035em;
  text-decoration: none;
  text-transform: uppercase;
}

.button-primary {
  color: var(--ink);
  background: var(--lime);
}

.button-primary:hover {
  background: var(--cyan);
}

.button-secondary {
  border-color: currentColor;
}

.text-link {
  font-weight: 750;
}

.status-line {
  display: flex;
  margin: 26px 0 0;
  align-items: center;
  gap: 10px;
  color: #aebcc1;
  font-family: var(--mono);
  font-size: 0.76rem;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 5px rgba(185, 242, 39, 0.11);
}

.portrait-console {
  width: min(100%, 430px);
  margin-inline: auto;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: #0a161d;
  box-shadow: var(--shadow);
  transform: rotate(1.2deg);
}

.console-bar,
.console-readout {
  display: flex;
  min-height: 38px;
  padding-inline: 13px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #aec0c7;
  font-size: 0.64rem;
}

.console-bar {
  border-bottom: 1px solid rgba(255, 255, 255, 0.17);
}

.console-readout {
  border-top: 1px solid rgba(255, 255, 255, 0.17);
}

.console-readout strong {
  color: var(--lime);
}

.portrait-frame {
  position: relative;
  overflow: hidden;
}

.portrait-frame img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.06);
}

.portrait-frame::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(73, 198, 216, 0.07), transparent 35%, rgba(185, 242, 39, 0.05));
  mix-blend-mode: screen;
}

.band {
  padding-block: clamp(72px, 9vw, 124px);
}

.band-paper {
  background: var(--paper);
}

.band-sand {
  background: var(--paper-2);
}

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

.section-heading {
  margin-bottom: 48px;
}

.split-heading {
  display: grid;
  align-items: end;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 40px;
}

.section-index {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 750;
}

.inverse .section-index {
  color: var(--cyan);
}

.section-heading h2,
.two-column h2,
.contact-panel h2 {
  max-width: 780px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5vw, 4.7rem);
  font-weight: 400;
  line-height: 1.03;
  letter-spacing: -0.04em;
}

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

.inverse > p {
  color: #b8c5ca;
}

.question-grid,
.featured-grid,
.card-grid,
.note-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.question-card,
.work-card,
.info-card,
.note-card {
  padding: clamp(24px, 3.5vw, 38px);
  border: 1px solid var(--line);
  background: var(--white);
}

.question-card {
  min-height: 310px;
}

.card-number {
  color: var(--cyan);
  font: 800 0.78rem var(--mono);
}

.question-card h3,
.work-card h3,
.info-card h3,
.note-card h2,
.publication-item h2,
.role-item h3 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.question-card h3 {
  margin: 74px 0 18px;
  font-size: 1.65rem;
}

.question-card p,
.work-card p,
.info-card p,
.note-card p {
  color: var(--muted);
}

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

.work-card {
  display: flex;
  min-height: 420px;
  flex-direction: column;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.16);
  background: var(--ink-2);
}

.work-card.featured {
  background: #233b46;
}

.work-card h3 {
  margin: 22px 0 18px;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.work-card p {
  color: #c6d1d5;
}

.status-chip,
.award-chip {
  align-self: flex-start;
  padding: 6px 9px;
  color: var(--ink) !important;
  background: var(--lime);
  font-size: 0.66rem;
  font-weight: 800;
}

.award-chip {
  background: var(--cyan);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.publication-meta {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--cyan);
  font: 700 0.7rem var(--mono);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.tag-list {
  display: flex;
  margin: 18px 0 26px;
  padding: 0;
  flex-wrap: wrap;
  gap: 7px;
  list-style: none;
}

.tag-list li {
  padding: 5px 8px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #ccd6d9;
  font: 0.67rem var(--mono);
}

.card-link {
  margin-top: auto;
  color: var(--lime);
  font-weight: 750;
}

.section-end-link {
  margin-top: 34px;
}

.inverse-link {
  color: var(--lime);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.evidence-grid > div {
  min-height: 170px;
  padding: 30px;
  background: var(--paper);
}

.evidence-grid strong,
.evidence-grid span {
  display: block;
}

.evidence-grid strong {
  margin-bottom: 16px;
  font: 400 clamp(2.1rem, 4vw, 3.4rem) var(--serif);
}

.evidence-grid span {
  color: var(--muted);
  font-size: 0.9rem;
}

.two-column {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(46px, 8vw, 110px);
}

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

.role-item,
.publication-item {
  padding: 27px 0;
  border-bottom: 1px solid var(--line);
}

.role-item h3 {
  margin: 0 0 5px;
  font-size: 1.43rem;
}

.role-item .organization {
  margin: 0 0 12px;
  color: var(--muted);
  font: 0.76rem var(--mono);
}

.role-item p:last-child {
  margin-bottom: 0;
}

.page-hero {
  color: var(--white);
  background: var(--ink);
}

.page-hero-inner {
  max-width: 970px;
  padding-block: clamp(78px, 11vw, 150px);
}

.page-hero h1 {
  font-size: clamp(3rem, 7.5vw, 7rem);
}

.page-intro {
  max-width: 780px;
  margin: 28px 0 0;
  color: #c5d1d5;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.meta-line {
  display: flex;
  margin: 28px 0 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 9px;
  color: var(--cyan);
  font-size: 0.68rem;
  list-style: none;
}

.meta-line li:not(:last-child)::after {
  margin-left: 9px;
  color: #627680;
  content: "/";
}

.project-feature {
  padding: clamp(34px, 5vw, 58px);
  color: var(--white);
  background: var(--ink-2);
}

.project-feature h2 {
  margin: 14px 0 17px;
  font: 400 clamp(2rem, 5vw, 4rem)/1.04 var(--serif);
  letter-spacing: -0.035em;
}

.project-feature p {
  max-width: 760px;
  color: #c8d4d8;
}

.research-areas {
  margin-top: 22px;
}

.publication-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 140px;
  gap: 28px;
}

.publication-item h2 {
  margin: 0 0 10px;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
}

.publication-year,
.publication-venue {
  font: 0.72rem var(--mono);
  color: var(--muted);
}

.publication-link {
  justify-self: end;
  font-weight: 750;
}

.note-card {
  display: flex;
  min-height: 315px;
  flex-direction: column;
}

.note-card h2 {
  margin: 18px 0 12px;
  font-size: 1.85rem;
}

.note-card .meta-line {
  margin-top: 0;
}

.note-card a {
  margin-top: auto;
  font-weight: 750;
}

.prose-shell {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(180px, 280px);
  gap: clamp(50px, 9vw, 120px);
  align-items: start;
}

.prose {
  font-family: var(--serif);
  font-size: clamp(1.08rem, 1.45vw, 1.22rem);
  line-height: 1.78;
}

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

.prose h2,
.prose h3 {
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.15;
}

.prose h2 {
  margin: 2.35em 0 0.75em;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  letter-spacing: -0.035em;
}

.prose h3 {
  margin: 2em 0 0.6em;
  font-size: 1.35rem;
}

.prose a {
  color: #0d6a7a;
}

.prose table {
  width: 100%;
  margin: 2em 0;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 0.88rem;
}

.prose th,
.prose td {
  padding: 13px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--paper-2);
}

.prose code {
  padding: 0.1em 0.3em;
  background: var(--paper-2);
  font: 0.86em var(--mono);
}

.aside-card {
  position: sticky;
  top: 104px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--white);
}

.aside-card h2 {
  margin: 0 0 15px;
  font: 700 0.74rem var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aside-card p,
.aside-card li {
  color: var(--muted);
  font-size: 0.87rem;
}

.aside-card ul {
  margin: 0;
  padding-left: 18px;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(270px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: start;
}

.professional-photo {
  position: relative;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: var(--shadow);
}

.professional-photo::after {
  position: absolute;
  right: -12px;
  bottom: -12px;
  z-index: -1;
  width: 54%;
  height: 54%;
  content: "";
  background: var(--lime);
}

.about-copy h2 {
  margin-top: 0;
  font: 400 clamp(2.2rem, 5vw, 4.2rem)/1.05 var(--serif);
  letter-spacing: -0.04em;
}

.about-copy p {
  font-size: 1.04rem;
}

.contact-panel {
  display: grid;
  padding: clamp(32px, 6vw, 70px);
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(38px, 7vw, 90px);
  color: var(--white);
  background: var(--ink);
}

.contact-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  list-style: none;
}

.contact-list li {
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.contact-list small {
  display: block;
  margin-bottom: 4px;
  color: var(--cyan);
  font: 0.66rem var(--mono);
  text-transform: uppercase;
}

.contact-list a {
  color: var(--lime);
  font-weight: 700;
}

.cv-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(45px, 7vw, 90px);
}

.cv-download {
  align-self: start;
  padding: 34px;
  color: var(--white);
  background: var(--ink);
}

.cv-download h2 {
  margin: 0 0 12px;
  font: 400 2rem var(--serif);
}

.cv-download p {
  color: #bdc9cd;
}

.site-footer {
  color: #c6d0d4;
  background: #0b1820;
}

.footer-inner {
  display: grid;
  padding-block: 64px 36px;
  grid-template-columns: 1fr auto;
  gap: 34px;
}

.footer-title {
  margin: 0;
  color: var(--white);
  font: 400 clamp(1.8rem, 4vw, 3.2rem) var(--serif);
}

.footer-links {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.footer-links a {
  color: var(--lime);
}

.footer-base {
  display: flex;
  padding-block: 18px 28px;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #84979f;
  font: 0.67rem var(--mono);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .menu-button {
    display: inline-grid;
    place-items: center;
  }

  .primary-nav {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: none;
    padding: 14px 20px 22px;
    flex-direction: column;
    align-items: stretch;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    background: var(--ink);
  }

  .primary-nav[data-open] {
    display: flex;
  }

  .primary-nav a {
    min-height: 48px;
    padding-inline: 8px;
  }

  .primary-nav .nav-cv {
    margin: 8px 0 0;
    justify-content: center;
  }

  .hero-inner,
  .split-heading,
  .two-column,
  .about-grid,
  .contact-panel,
  .cv-grid,
  .prose-shell {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    padding-block: 84px;
  }

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

  .portrait-console {
    width: min(70vw, 430px);
  }

  .question-grid,
  .card-grid,
  .note-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .aside-card {
    position: static;
  }

  .professional-photo {
    width: min(70vw, 460px);
  }
}

@media (max-width: 680px) {
  :root {
    --shell: min(100% - 28px, 1180px);
  }

  .wordmark small {
    display: none;
  }

  .hero-inner {
    min-height: auto;
  }

  .hero h1,
  .page-hero h1 {
    letter-spacing: -0.045em;
  }

  .portrait-console {
    width: 100%;
  }

  .question-grid,
  .featured-grid,
  .card-grid,
  .note-grid,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .question-card {
    min-height: 260px;
  }

  .publication-item {
    grid-template-columns: 1fr;
    gap: 11px;
  }

  .publication-link {
    justify-self: start;
  }

  .footer-inner,
  .footer-base {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
  }

  .professional-photo {
    width: 100%;
  }

  .prose table {
    display: block;
    overflow-x: auto;
  }
}

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

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

  .portrait-console {
    transform: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .button-row,
  body::before {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }

  .page-hero {
    color: #000;
    background: #fff;
  }
}