:root {
  color-scheme: light;
  --bg: #f8f9f6;
  --paper: #fff;
  --ink: #222d27;
  --muted: #5c6861;
  --accent: #31634c;
  --accent-hover: #234d39;
  --line: #dde3da;
  --tint: #eef2e9;
  --soft: #e6eddf;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #171e1a;
  --paper: #202a23;
  --ink: #e8ede5;
  --muted: #b2bdb3;
  --accent: #a1c7a9;
  --accent-hover: #bfddc6;
  --line: #344137;
  --tint: #232f25;
  --soft: #2d3b2e;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.75 var(--sans); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, figure { margin: 0; }
a { color: var(--accent); text-decoration: none; text-underline-offset: 4px; }
a:hover { color: var(--accent-hover); text-decoration: underline; }
button { font: inherit; color: inherit; cursor: pointer; }
button, a, summary { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
strong { font-weight: 600; }
svg { display: block; flex-shrink: 0; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
::selection { background: var(--soft); color: var(--ink); }
.page-shell, .header-inner { width: 100%; max-width: 1000px; padding-left: 40px; padding-right: 40px; margin: 0 auto; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 99; padding: 10px 18px; background: var(--accent); color: var(--bg); }
.skip-link:focus { top: 10px; color: var(--bg); }

.site-header { position: sticky; top: 0; z-index: 10; background: var(--bg); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: flex-end; gap: 24px; min-height: 62px; }
nav { display: flex; gap: 27px; margin-left: auto; }
.nav-link { position: relative; padding: 10px 0; color: var(--muted); font-size: 15px; }
.nav-link:hover, .nav-link[aria-current] { color: var(--accent); text-decoration: none; }
.nav-link[aria-current]::after { content: ''; position: absolute; left: 0; right: 0; bottom: 4px; height: 2px; background: var(--accent); }
.external-arrow { font-size: 12px; }
.theme-toggle { display: grid; place-items: center; width: 36px; height: 36px; flex-shrink: 0; border: 0; border-radius: 50%; background: transparent; color: var(--muted); }
.theme-toggle:hover { color: var(--accent); background: var(--tint); }
.sun-icon { display: none; }
[data-theme='dark'] .sun-icon { display: block; }
[data-theme='dark'] .moon-icon { display: none; }

.about-section { display: grid; grid-template-columns: minmax(0, 1fr) 310px; column-gap: 44px; padding: 46px 0 38px; align-items: start; }
.about-heading { grid-column: 1 / -1; margin-bottom: 27px; }
h1 { font: 300 46px/1.2 var(--sans); letter-spacing: -1.5px; margin-bottom: 12px; }
h1 strong { font-weight: 650; }
.affiliation { font-size: 16px; line-height: 1.65; color: var(--muted); }
.university { font-size: 17px; margin-top: 1px; }
.bio { margin-top: 0; }
.bio p + p { margin-top: 15px; }
.profile { margin-top: 2px; }
.profile-photo-frame { width: 100%; aspect-ratio: 4 / 5; overflow: hidden; border-radius: 4px; background: var(--tint); box-shadow: 0 3px 14px #16251e17; }
.profile-photo { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 57%; transform: scale(1.3); transform-origin: 50% 60%; }
.profile figcaption { margin-top: 9px; text-align: center; color: var(--muted); font-size: 14px; }
.profile-links { grid-column: 1 / -1; display: flex; gap: 12px 26px; flex-wrap: wrap; align-items: center; margin-top: 25px; }
.profile-links a { display: inline-flex; gap: 8px; align-items: center; font-size: 15px; min-height: 40px; }
.profile-links svg { width: 19px; height: 19px; }
.profile-links .resume-link { border: 1px solid var(--accent); border-radius: 3px; padding: 5px 12px; }
.resume-link:hover { background: var(--tint); text-decoration: none; }
.file-type { font-size: 10px; letter-spacing: .04em; margin-left: 3px; }
.internship-note { grid-column: 1 / -1; margin-top: 28px; padding: 19px 23px; border-left: 3px solid var(--accent); background: var(--tint); }
.internship-note h2 { display: flex; align-items: baseline; gap: 10px; font-size: 17px; font-weight: 600; letter-spacing: 0; line-height: 1.5; margin-bottom: 6px; color: var(--accent); }
.availability-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.internship-note p { font-size: 15px; line-height: 1.75; }

.section { padding: 29px 0 33px; border-top: 1px solid var(--line); }
h2 { font: 400 28px/1.35 var(--sans); letter-spacing: -.6px; margin-bottom: 20px; }
.research-list, .experience-list { margin: 0; padding-left: 23px; }
.research-list li, .experience-list li { padding-left: 4px; }
.research-list li + li, .experience-list li + li { margin-top: 10px; }
.research-list li::marker, .experience-list li::marker { color: var(--accent); }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }
.text-link { display: inline-flex; gap: 6px; align-items: center; font-size: 15px; flex-shrink: 0; }

.publication { display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 23px; padding: 22px 0; }
.publication:first-child { padding-top: 4px; }
.publication + .publication { border-top: 1px solid var(--line); }
.publication-meta { display: flex; flex-direction: column; align-items: flex-start; gap: 7px; padding-top: 4px; }
.venue-label { display: inline-block; min-width: 74px; text-align: center; padding: 2px 7px; background: var(--accent); color: var(--bg); border: 1px solid var(--accent); border-radius: 2px; font-size: 13px; font-weight: 600; }
.pub-year { width: 74px; text-align: center; color: var(--muted); font-size: 15px; }
.publication h3 { font-size: 18px; line-height: 1.55; font-weight: 600; }
.publication h3 a { color: var(--ink); }
.publication h3 a:hover { color: var(--accent); }
.authors { font-size: 16px; margin-top: 8px; }
.venue-full { font-size: 16px; color: var(--muted); font-style: italic; margin-top: 3px; }
.online-date { font-size: 14px; font-style: normal; }
.pub-summary { color: var(--muted); font-size: 16px; line-height: 1.7; margin-top: 9px; }
.publication-links { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 11px; }
.publication-links > a, .bib-trigger { display: inline-flex; align-items: center; justify-content: center; min-height: 32px; padding: 1px 10px; border: 1px solid var(--accent); border-radius: 3px; background: transparent; color: var(--accent); font-size: 13px; line-height: 1.7; }
.publication-links > a:hover, .bib-trigger:hover { background: var(--tint); text-decoration: none; }
.earlier-work { margin-top: 10px; }
.earlier-work summary { cursor: pointer; color: var(--accent); font-size: 16px; padding: 7px 0; }
.earlier-work summary:hover { color: var(--accent-hover); }
.work-count { color: var(--muted); font-size: 14px; }
.earlier-list article { display: grid; grid-template-columns: 55px minmax(0, 1fr); gap: 15px; padding: 16px 0; }
.earlier-year { color: var(--muted); font-size: 15px; }
.earlier-list h3 { font-size: 16px; line-height: 1.65; font-weight: 600; margin-bottom: 5px; }
.earlier-list p { color: var(--muted); font-size: 15px; }

.education-list { margin: 0; }
.education-list > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 20px; }
.education-list > div + div { margin-top: 16px; }
.education-list dt span { display: block; color: var(--muted); font-size: 16px; }
.education-list dd { margin: 0; color: var(--muted); font-size: 15px; padding-top: 2px; }
.experience-list { font-size: 16px; }
.experience-date { color: var(--muted); }
.visitor-section { border-top: 1px solid var(--line); padding: 26px 0; text-align: center; }
.visitor-map { width: 100%; max-width: 280px; min-height: 200px; margin: 0 auto 12px; }
.visitor-map iframe, .visitor-map img, .visitor-map canvas { max-width: 100%; }
.visitor-credit { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; color: var(--muted); }
.site-footer { padding-top: 17px; padding-bottom: 18px; background: var(--tint); border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px 18px; }
.footer-inner > a { flex-shrink: 0; }

dialog { width: min(740px, calc(100% - 32px)); padding: 26px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); box-shadow: 0 20px 70px #0004; }
dialog::backdrop { background: #16251ebd; }
.dialog-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.dialog-heading h2 { margin: 0; }
.dialog-close { width: 36px; height: 36px; border: 0; border-radius: 50%; background: var(--tint); font-size: 24px; line-height: 1; }
#citation-text { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 50vh; overflow: auto; margin: 20px 0; padding: 18px; border: 1px solid var(--line); border-radius: 3px; background: var(--paper); font: 13px/1.75 ui-monospace, SFMono-Regular, Consolas, monospace; }
.dialog-footer { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
#copy-status { font-size: 14px; color: var(--muted); }
.button { padding: 8px 14px; border: 1px solid transparent; border-radius: 3px; font-size: 14px; min-height: 40px; }
.button-primary { color: var(--bg); background: var(--accent); }
.button-primary:hover { background: var(--accent-hover); }
body:has(dialog[open]) { overflow: hidden; }

@media (max-width: 800px) {
  .page-shell, .header-inner { padding-left: 28px; padding-right: 28px; }
  .about-section { grid-template-columns: minmax(0, 1fr) 270px; column-gap: 30px; padding-top: 40px; }
  nav { gap: 20px; }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 80px; }
  body { font-size: 16px; }
  .page-shell, .header-inner { padding-left: 22px; padding-right: 22px; }
  .header-inner { gap: 10px; min-height: 58px; }
  .theme-toggle { width: 30px; height: 34px; }
  nav { justify-content: space-between; flex: 1; margin: 0; gap: 10px; }
  .nav-link { font-size: 13px; padding: 9px 0; }
  .external-arrow { display: none; }
  .nav-link[aria-current]::after { bottom: 1px; }
  .about-section { grid-template-columns: minmax(0, 1fr); padding: 32px 0 28px; }
  .about-heading { margin-bottom: 0; }
  h1 { font-size: 40px; margin-bottom: 9px; }
  .affiliation { font-size: 15px; }
  .university { font-size: 16px; }
  .profile { grid-row: 2; width: min(310px, 100%); margin: 24px auto 0; }
  .bio { margin-top: 24px; }
  .profile-links { gap: 10px 24px; margin-top: 20px; }
  .profile-links a { font-size: 15px; }
  .internship-note { padding: 17px 18px; margin-top: 24px; }
  .internship-note h2 { font-size: 16px; }
  .section { padding: 25px 0 29px; }
  h2 { font-size: 25px; }
  .section-heading { flex-wrap: wrap; gap: 0 12px; margin-bottom: 18px; }
  .section-heading h2 { margin-bottom: 5px; }
  .text-link { font-size: 14px; }
  .publication { grid-template-columns: minmax(0, 1fr); gap: 10px; padding: 22px 0; }
  .publication-meta { flex-direction: row; align-items: center; gap: 10px; padding-top: 0; }
  .pub-year { text-align: left; }
  .publication h3 { font-size: 17px; }
  .education-list > div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .education-list dd { padding-top: 0; }
  .site-footer { font-size: 12px; }
  dialog { padding: 19px; }
  .dialog-footer { flex-wrap: wrap; }
}

@media (max-width: 380px) {
  .header-inner { padding-left: 14px; padding-right: 14px; gap: 6px; }
  nav { gap: 7px; }
  .nav-link { font-size: 12px; }
}

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

@media print {
  body { background: white; color: #111; font-size: 11pt; }
  .site-header, .skip-link, .visitor-section, .site-footer, .bib-trigger, dialog { display: none !important; }
  .page-shell { max-width: none; padding: 0; }
  .about-section { padding-top: 0; grid-template-columns: minmax(0, 1fr) 140px; }
  .about-copy { display: block; }
  .profile { grid-row: auto; width: auto; margin: 0; }
  .about-heading { margin-bottom: 20px; }
  .bio { margin-top: 0; }
  h1 { font-size: 28pt; }
  h2 { font-size: 18pt; }
  .section { padding: 18px 0; }
  .publication, .education-list > div { break-inside: avoid; }
  .publication { grid-template-columns: 70px minmax(0, 1fr); }
  .publication-meta { flex-direction: column; }
  .authors, .venue-full, .pub-summary, .education-list dt span, .education-list dd, .experience-date { color: #333; }
  a { color: #234d39; }
  .publication-links > a { border: 0; padding: 0; }
}