:root {
  color-scheme: light;
  --background: #fbfaf7;
  --surface: #ffffff;
  --ink: #272621;
  --ink-soft: #66645d;
  --line: #dcd8cf;
  --link: #315f70;
  --accent: #a75d46;
  --header: rgba(251, 250, 247, 0.94);
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

[data-theme="dark"] {
  color-scheme: dark;
  --background: #191a18;
  --surface: #22231f;
  --ink: #efede6;
  --ink-soft: #b5b2a9;
  --line: #3d3d37;
  --link: #91c4d4;
  --accent: #d68c72;
  --header: rgba(25, 26, 24, 0.94);
}

* {
  box-sizing: border-box;
}

html {
  max-width: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--background);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

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

button {
  font: inherit;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

.section-shell,
.nav-shell {
  width: min(1020px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: var(--header);
  backdrop-filter: blur(12px);
  transition: border-color 160ms ease;
}

.site-header.scrolled {
  border-color: var(--line);
}

.nav-shell {
  display: flex;
  min-height: 66px;
  align-items: center;
}

.wordmark {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 1.65rem;
}

.site-nav a,
.nav-cv {
  color: var(--ink-soft);
  font-size: 0.84rem;
  text-decoration: none;
  transition: color 140ms ease;
}

.site-nav a:hover,
.site-nav a.active,
.nav-cv:hover {
  color: var(--ink);
}

.nav-actions {
  display: flex;
  margin-left: 1.5rem;
  align-items: center;
  gap: 0.7rem;
}

.nav-cv {
  padding-bottom: 1px;
  border-bottom: 1px solid var(--line);
}

.theme-toggle,
.menu-toggle {
  display: grid;
  width: 32px;
  height: 32px;
  padding: 0;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
}

.theme-toggle:hover,
.menu-toggle:hover {
  color: var(--ink);
}

.theme-toggle svg {
  width: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.moon-icon,
[data-theme="dark"] .sun-icon {
  display: none;
}

[data-theme="dark"] .moon-icon {
  display: block;
}

.menu-toggle {
  display: none;
}

.intro {
  display: grid;
  min-height: calc(100vh - 66px);
  padding-block: 88px 96px;
  grid-template-columns: minmax(0, 1fr) 180px;
  align-items: center;
  gap: 72px;
}

.intro-copy {
  max-width: 690px;
}

.intro-kicker {
  margin: 0 0 0.9rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.intro h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 4.7rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.intro h1 span {
  display: inline-block;
  margin-left: 0.45rem;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 0.32em;
  font-weight: 500;
  letter-spacing: 0;
  vertical-align: 0.3em;
}

.intro-role {
  margin: 1.05rem 0 1.7rem;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.42rem;
  line-height: 1.35;
}

.intro-copy > p:not(.intro-kicker, .intro-role, .phd-note) {
  margin: 0 0 0.9rem;
  color: var(--ink-soft);
  font-size: 1rem;
}

.intro-copy p a,
.about-copy a {
  color: var(--link);
  text-decoration-color: color-mix(in srgb, var(--link) 45%, transparent);
  text-underline-offset: 0.18em;
}

.intro-copy p a:hover,
.about-copy a:hover {
  text-decoration-color: var(--link);
}

.phd-note {
  margin: 1.25rem 0 0;
  font-weight: 650;
}

.profile-links {
  display: flex;
  margin-top: 1.65rem;
  gap: 0.6rem 1.2rem;
  flex-wrap: wrap;
}

.profile-links a,
.paper-links a,
.project-links a,
.section-link,
.email-link,
.site-footer a {
  color: var(--link);
  font-size: 0.86rem;
  font-weight: 600;
  text-underline-offset: 0.2em;
}

.portrait {
  width: 180px;
  margin: 0;
}

.portrait img {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  border-radius: 7px;
}

.page-section {
  padding-block: 78px;
  border-top: 1px solid var(--line);
}

.section-label {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: baseline;
  gap: 0.75rem;
}

.section-label > span {
  color: var(--accent);
  font-family: var(--serif);
  font-size: 0.9rem;
}

.section-label h2,
.contact h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.4vw, 2.55rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.section-intro {
  max-width: 670px;
  margin: 1.25rem 0 1.8rem 46px;
  color: var(--ink-soft);
}

.about-layout {
  display: grid;
  margin-top: 2.2rem;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 84px;
}

.about-copy p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.about-copy .lead {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.28rem;
  line-height: 1.55;
}

.interest-list h3,
.subsection-title,
.methods h3 {
  margin: 0 0 1.1rem;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.interest-list ul {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.interest-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.interest-list strong,
.interest-list span {
  display: block;
}

.interest-list strong {
  margin-bottom: 0.25rem;
  font-family: var(--serif);
  font-size: 1.05rem;
}

.interest-list span {
  color: var(--ink-soft);
  font-size: 0.84rem;
  line-height: 1.55;
}

.project-list {
  border-bottom: 1px solid var(--line);
}

.project-item {
  display: grid;
  padding-block: 2rem;
  border-top: 1px solid var(--line);
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1fr);
  align-items: center;
  gap: 3.4rem;
}

.project-image {
  display: grid;
  overflow: hidden;
  min-height: 210px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
}

.project-image img {
  width: 100%;
  height: 100%;
  max-height: 250px;
  object-fit: contain;
}

.project-placeholder {
  background: var(--surface);
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.5rem;
}

.project-meta,
.publication-venue,
.background-date {
  margin: 0 0 0.45rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project-copy h3 {
  margin: 0 0 0.65rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.25;
}

.project-copy > p:not(.project-meta, .project-methods) {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.project-methods {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.project-links {
  display: flex;
  margin-top: 1rem;
  align-items: center;
  gap: 0.8rem 1.2rem;
  flex-wrap: wrap;
}

.project-links span {
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 650;
}

.section-heading-line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
}

.publication-list {
  margin-top: 2rem;
  border-bottom: 1px solid var(--line);
}

.publication-item {
  display: grid;
  padding-block: 1.55rem;
  border-top: 1px solid var(--line);
  grid-template-columns: 165px minmax(0, 1fr);
  gap: 2rem;
}

.publication-venue {
  margin-top: 0.2rem;
  line-height: 1.5;
}

.publication-item h3 {
  max-width: 760px;
  margin: 0 0 0.45rem;
  font-family: var(--serif);
  font-size: 1.19rem;
  font-weight: 500;
  line-height: 1.42;
}

.publication-item h3 a {
  color: var(--ink);
  text-decoration: none;
}

.publication-item h3 a:hover {
  color: var(--link);
}

.publication-item p:not(.publication-venue) {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.83rem;
  line-height: 1.6;
}

.paper-links {
  margin-top: 0.45rem;
}

.paper-links a {
  font-size: 0.78rem;
}

.background-grid {
  display: grid;
  margin-top: 2.3rem;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 76px;
}

.background-list {
  border-bottom: 1px solid var(--line);
}

.background-list article {
  display: grid;
  padding-block: 1.2rem;
  border-top: 1px solid var(--line);
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 1.25rem;
}

.background-date {
  margin-top: 0.25rem;
}

.background-list h4 {
  margin: 0 0 0.15rem;
  font-family: var(--serif);
  font-size: 1.04rem;
  font-weight: 600;
  line-height: 1.35;
}

.background-list p:not(.background-date) {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.8rem;
  line-height: 1.55;
}

.background-list .background-org {
  margin-bottom: 0.25rem;
  color: var(--ink);
  font-weight: 600;
}

.methods {
  display: grid;
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  grid-template-columns: 165px minmax(0, 1fr);
  gap: 2rem;
}

.methods h3 {
  margin-top: 0.2rem;
}

.methods p {
  max-width: 720px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.contact {
  display: grid;
  padding-block: 72px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 3rem;
}

.contact h2 {
  margin-bottom: 0.65rem;
}

.contact p {
  max-width: 650px;
  margin: 0;
  color: var(--ink-soft);
}

.email-link {
  font-size: 0.92rem;
  white-space: nowrap;
}

.site-footer {
  display: flex;
  padding-block: 1.5rem 2.3rem;
  align-items: center;
  justify-content: space-between;
  color: var(--ink-soft);
  font-size: 0.76rem;
}

.site-footer p {
  margin: 0;
}

.site-footer div {
  display: flex;
  gap: 1rem;
}

.site-footer a {
  color: var(--ink-soft);
  font-size: 0.76rem;
}

@media (max-width: 860px) {
  .intro {
    grid-template-columns: minmax(0, 1fr) 160px;
    gap: 52px;
  }

  .portrait {
    width: 160px;
  }

  .about-layout,
  .background-grid {
    gap: 48px;
  }

  .project-item {
    grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1fr);
    gap: 2rem;
  }

  .project-image {
    min-height: 175px;
  }

  .background-list article {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

@media (max-width: 720px) {
  .section-shell,
  .nav-shell {
    width: min(100% - 32px, 1020px);
  }

  .site-nav {
    position: fixed;
    top: 66px;
    right: 0;
    left: 0;
    display: flex;
    padding: 1.2rem 16px 1.6rem;
    border-bottom: 1px solid var(--line);
    background: var(--background);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 150ms ease, transform 150ms ease;
  }

  .site-nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    width: 100%;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    font-family: var(--serif);
    font-size: 1.05rem;
  }

  .nav-actions {
    margin-left: auto;
  }

  .menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
  }

  .menu-toggle span {
    width: 17px;
    height: 1px;
    background: currentColor;
    transition: transform 150ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-3px) rotate(-45deg);
  }

  .intro {
    min-height: auto;
    padding-block: 64px 72px;
    grid-template-columns: 1fr;
    gap: 2.2rem;
  }

  .portrait {
    order: -1;
    width: 130px;
  }

  .intro h1 {
    font-size: clamp(2.85rem, 15vw, 4rem);
  }

  .page-section {
    padding-block: 62px;
  }

  .about-layout,
  .background-grid {
    grid-template-columns: 1fr;
    gap: 2.7rem;
  }

  .project-item {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 1.4rem;
  }

  .project-image {
    min-height: 0;
  }

  .project-image img {
    height: auto;
    max-height: none;
  }

  .publication-item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .section-heading-line {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.9rem;
  }

  .methods {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 1.3rem;
  }
}

@media (max-width: 480px) {
  .nav-cv {
    display: none;
  }

  .intro h1 span {
    display: block;
    margin: 0.7rem 0 0;
    font-size: 0.3em;
    vertical-align: initial;
  }

  .section-intro {
    margin-left: 0;
  }

  .section-label {
    grid-template-columns: 27px minmax(0, 1fr);
    gap: 0.55rem;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.65rem;
  }

  .site-footer div {
    flex-wrap: wrap;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}