:root {
  color-scheme: dark;
  --bg: #101615;
  --surface: #17201d;
  --text: #e9eee7;
  --muted: #a0aaa3;
  --accent: #a4dfbb;
  --line: #303e36;
  --soft: #202e26;
  --warm: #d5b67c;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --display: var(--sans);
}
html[data-theme="fusion"] {
  color-scheme: light;
  --bg: #f5f1e7;
  --surface: #eceee3;
  --text: #242e2b;
  --muted: #636e65;
  --accent: #236b57;
  --line: #d6d7c9;
  --soft: #e6e9dc;
  --warm: #a65b3c;
  --display: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.7 var(--sans); -webkit-font-smoothing: antialiased; }
::selection { background: var(--accent); color: var(--bg); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; color: var(--accent); }
p, h1, h2, h3 { margin-top: 0; }
.site-shell { width: min(1160px, calc(100% - 112px)); margin: 0 auto; }
.site-header { display: flex; align-items: center; gap: 24px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; white-space: nowrap; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 54px; height: 39px; border: 1px solid #384d40; border-radius: 3px; background: #101615; color: #e9eee7; font: 19px var(--mono); }
.brand-mark span { color: #a4dfbb; }
.brand-name { font-size: 16px; font-weight: 500; letter-spacing: -.3px; }
html[data-theme="fusion"] .brand-name { font: 21px var(--display); }
.main-nav { display: flex; align-items: center; gap: 25px; margin-left: auto; color: var(--muted); font-size: 12px; }
.main-nav a { display: inline-flex; align-items: center; min-height: 44px; white-space: nowrap; }
.main-nav a:last-child { color: var(--text); }
.header-github { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 44px; min-height: 44px; border-radius: 4px; color: var(--muted); }
.header-github svg { display: block; }
.header-github:focus-visible { background: var(--soft); }
[data-theme-toggle] { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-width: 76px; min-height: 44px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: var(--text); font-size: 12px; cursor: pointer; }
[data-theme-toggle]:focus-visible { border-color: var(--accent); background: var(--soft); }
[data-theme-toggle] svg { display: block; width: 15px; height: 15px; flex: 0 0 15px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(260px, .9fr); align-items: start; gap: 48px; padding: 44px 0 42px; }
.hero-copy { min-width: 0; }
.eyebrow, .section-number, .section-aside, .item-number, .figure-caption, .publication-meta, .publication-index, .publication-year, .toolkit, .site-footer { font-family: var(--mono); }
.eyebrow { display: flex; align-items: center; gap: 9px; margin-bottom: 21px; color: var(--muted); font-size: 10px; letter-spacing: .65px; }
.status-dot { display: inline-block; width: 6px; height: 6px; flex: 0 0 6px; border-radius: 50%; background: var(--accent); }
.hero-identity { display: flex; align-items: center; gap: 22px; margin-bottom: 21px; }
.hero-identity > div { min-width: 0; }
.hero-portrait { display: block; width: 88px; height: 102px; flex: 0 0 88px; object-fit: cover; object-position: 50% 65%; border: 1px solid var(--line); border-radius: 3px; filter: saturate(.8); }
.hero-name { color: var(--warm); font-size: 14px; line-height: 1.5; margin: 0 0 6px; }
.hero-title { margin: 0; font: 500 clamp(48px, 5.2vw, 66px)/1.06 var(--display); letter-spacing: -.055em; white-space: nowrap; }
html[data-theme="fusion"] .hero-title { font-weight: 400; }
.hero-tagline { margin: 0 0 16px; color: var(--accent); font: 400 clamp(22px, 2vw, 25px)/1.4 var(--display); letter-spacing: -.02em; }
.hero-description { max-width: 55ch; margin-bottom: 14px; font-size: 16px; line-height: 1.8; }
.hero-bio { max-width: 59ch; margin: 13px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.scholarly-links { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; font-size: 14px; }
.scholarly-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--accent); }
.scholarly-links > span { color: var(--line); font-size: 13px; }
.link-note { margin-left: 4px; color: var(--muted); font-size: 11px; }
.scholarly-links a, .publication-resources a, .publication-title a, .text-link, .main-nav a, .site-footer > a { text-decoration-thickness: 1px; text-underline-offset: 4px; }
.scholarly-links a:focus-visible, .publication-resources a:focus-visible, .publication-title a:focus-visible, .text-link:focus-visible, .main-nav a:focus-visible, .site-footer > a:focus-visible { text-decoration-line: underline; }
.toolkit { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 14px; font-size: 11px; }
.toolkit-label { margin-right: 5px; color: var(--muted); font-size: 9px; letter-spacing: .6px; }
.toolkit > span:not(.toolkit-label) { padding: 3px 8px; border: 1px solid var(--line); border-radius: 2px; }
.hero-footnote { margin: 14px 0 0; color: var(--muted); font-size: 12px; }
.hero-figures { display: grid; gap: 14px; width: 100%; max-width: 360px; min-width: 0; justify-self: end; }
.hero-art { --bg: #101615; --muted: #aab4ad; --warm: #d5b67c; width: 100%; min-width: 0; margin: 0; padding: 21px 17px 23px; border: 1px solid #3b4c41; border-radius: 3px; background: var(--bg); color: #a4dfbb; box-shadow: 0 10px 30px #1016150a, inset 0 1px 0 #a4dfbb0a; }
.hero-art-secondary { padding-top: 12px; padding-bottom: 17px; scroll-margin-top: 28px; }
.hero-art-secondary .figure-caption { color: var(--muted); }
.science-figure { display: block; width: 100%; height: auto; overflow: visible; }
.figure-label { fill: currentColor; font: 14px var(--mono); letter-spacing: .2px; }
.warm-label { fill: var(--warm); }
.figure-caption { margin: 0 15px; padding-top: 10px; border-top: 1px solid #a4dfbb24; color: #d2dfd5; font-size: 10px; line-height: 1.6; letter-spacing: .3px; }
.figure-explanation { margin: 10px 15px 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.research-section, .publications-section { padding: 60px 0 64px; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.section-number { margin: 0 0 12px; color: var(--warm); font-size: 10px; letter-spacing: .8px; }
.section-title { margin: 0; font: 500 clamp(30px, 3.2vw, 38px)/1.2 var(--display); letter-spacing: -.035em; }
html[data-theme="fusion"] .section-title { font-weight: 400; }
.section-aside { padding-bottom: 5px; color: var(--muted); font-size: 9px; letter-spacing: .35px; white-space: nowrap; }
.research-intro { max-width: 73ch; margin: 0 0 34px; color: var(--muted); font-size: 15px; line-height: 1.85; }
.research-item { display: grid; grid-template-columns: 30px minmax(0, .9fr) minmax(0, 1.4fr); gap: 28px; min-width: 0; padding: 34px 0; border-top: 1px solid var(--line); }
.item-number { margin: 2px 0 0; color: var(--warm); font-size: 11px; }
.research-heading, .research-body { min-width: 0; }
.research-area { margin: 0 0 12px; color: var(--accent); font: 10px/1.7 var(--mono); letter-spacing: .5px; }
.research-question { max-width: 25ch; margin: 0; font: 400 27px/1.35 var(--display); letter-spacing: -.025em; }
.research-explanation { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }
.research-takeaway { margin: 0 0 10px; color: var(--text); font-size: 16px; line-height: 1.65; }
.research-papers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 23px; margin: 17px 0 0; padding: 0; list-style: none; }
.research-papers li { min-width: 0; }
.research-paper-link { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 3px; min-height: 44px; color: var(--accent); font-size: 12px; line-height: 1.6; }
.research-paper-title { text-decoration-thickness: 1px; text-underline-offset: 4px; }
.research-paper-link:focus-visible .research-paper-title { text-decoration-line: underline; }
.research-paper-venue { color: var(--muted); font: 10px/1.7 var(--mono); }
.section-caption { margin: 12px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.citation-note { margin: 20px 0 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.text-link { display: inline-flex; align-items: center; gap: 13px; min-height: 44px; font-size: 12px; white-space: nowrap; }
.text-link > span { color: var(--accent); }
.publication-row { display: grid; grid-template-columns: 52px minmax(0, 1fr) 55px; gap: 21px; padding: 29px 0; border-top: 1px solid var(--line); }
.publication-featured { padding: 28px 18px; border-left: 2px solid var(--accent); background: var(--soft); }
.publication-content { min-width: 0; max-width: 74ch; }
.publication-with-figure { display: grid; grid-template-columns: minmax(0, 1fr) 188px; align-items: center; gap: 28px; max-width: none; }
.publication-writeup { min-width: 0; }
.publication-preview { min-width: 0; margin: 0; }
.publication-preview > a { display: block; padding: 8px; border: 1px solid var(--line); border-radius: 2px; background: #fff; }
.publication-preview img { display: block; width: 100%; height: auto; object-fit: contain; }
.publication-preview figcaption { margin-top: 8px; color: var(--muted); font: 9px/1.7 var(--mono); }
.publication-preview figcaption a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; white-space: nowrap; }
.publication-index, .publication-year { padding-top: 2px; color: var(--muted); font-size: 10px; }
.publication-year { color: var(--warm); text-align: right; }
.publication-meta { margin: 0 0 9px; color: var(--muted); font-size: 10px; line-height: 1.7; letter-spacing: .55px; }
.publication-meta > span { color: var(--accent); }
.publication-title { margin: 0; font-size: 20px; font-weight: 500; line-height: 1.5; letter-spacing: -.25px; }
.publication-title a { overflow-wrap: anywhere; }
.publication-authors { margin: 9px 0 0; color: var(--muted); font-size: 12.5px; line-height: 1.75; }
.publication-authors strong { color: var(--text); font-weight: 600; }
.publication-summary { margin: 11px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.publication-resources { display: flex; flex-wrap: wrap; align-items: center; gap: 21px; margin-top: 7px; }
.publication-resources a { display: inline-flex; align-items: center; gap: 5px; min-height: 44px; color: var(--accent); font-size: 12px; }
.contact-section { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; padding: 54px 0 60px; border-top: 1px solid var(--line); }
.contact-section .section-title { font-size: clamp(34px, 3.6vw, 44px); }
.contact-links a { display: flex; align-items: center; justify-content: space-between; gap: 15px; min-height: 58px; padding: 14px 0; border-bottom: 1px solid var(--line); font: 13px/1.7 var(--mono); overflow-wrap: anywhere; }
.contact-links span { flex-shrink: 0; color: var(--accent); font-size: 18px; }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.site-footer > a { display: inline-flex; align-items: center; min-height: 44px; }
.footer-note { display: flex; align-items: center; gap: 10px; font-size: 9px; letter-spacing: .5px; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 10; padding: 9px 15px; background: var(--accent); color: var(--bg); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.publication-detail { max-width: 850px; padding: 45px 0 65px; }
.publication-detail .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-bottom: 25px; color: var(--accent); font-size: 13px; }
.publication-detail h1 { margin: 16px 0; font: 400 clamp(28px,3.4vw,44px)/1.25 var(--display); letter-spacing: -.025em; }
.publication-detail h2 { margin: 36px 0 14px; font: 400 29px/1.3 var(--display); }
.publication-detail .publication-authors { font-size: 15px; }
.publication-detail .publication-citation { padding: 15px 18px; margin: 22px 0; border-left: 2px solid var(--accent); background: var(--soft); font-size: 14px; }
.publication-detail .publication-citation a { overflow-wrap: anywhere; color: var(--accent); }
.publication-detail .research-summary { max-width: 72ch; line-height: 1.85; }
/* Entry motion never hides content and runs only when motion is welcome. */
@media (prefers-reduced-motion: no-preference) {
  @keyframes reveal-entry {
    from { opacity: .75; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .reveal-active { animation: reveal-entry 500ms cubic-bezier(.2, .65, .3, 1) clamp(0ms, var(--reveal-delay, 0ms), 100ms) both; }
  .reveal-active:focus-within { opacity: 1; transform: none; animation: none; }
}
@media (hover: hover) and (pointer: fine) {
  a:hover { color: var(--accent); }
  [data-theme-toggle]:hover { border-color: var(--accent); background: var(--soft); }
  .header-github:hover { background: var(--soft); }
  .scholarly-links a:hover, .publication-resources a:hover, .publication-title a:hover, .text-link:hover, .main-nav a:hover, .site-footer > a:hover { text-decoration-line: underline; }
  .research-paper-link:hover .research-paper-title { text-decoration-line: underline; }
}
@media (max-width: 1100px) {
  .site-shell { width: calc(100% - 72px); }
  .site-header { gap: 16px; }
  .main-nav { gap: 21px; }
  .hero { gap: 36px; }
  .hero-identity { gap: 18px; }
  .hero-portrait { width: 88px; height: 102px; flex-basis: 88px; }
  .section-aside { display: none; }
}
@media (min-width: 761px) and (max-width: 999px) {
  .research-item { grid-template-columns: 24px minmax(0, 1fr); column-gap: 20px; row-gap: 16px; }
  .research-body { grid-column: 2; }
  .research-question { max-width: 35ch; }
}
@media (max-width: 760px) {
  .site-shell { width: calc(100% - 40px); }
  .site-header { flex-wrap: wrap; gap: 10px; padding: 18px 0 10px; }
  .brand { gap: 10px; }
  .brand-mark { width: 50px; height: 35px; font-size: 18px; }
  .brand-name { font-size: 14px; }
  html[data-theme="fusion"] .brand-name { font-size: 19px; }
  .header-github { margin-left: auto; }
  [data-theme-toggle] { min-width: 71px; padding-right: 9px; padding-left: 9px; }
  .main-nav { order: 4; justify-content: space-between; width: 100%; margin: 0; gap: 12px; font-size: 12px; }
  .hero { grid-template-columns: 1fr; gap: 28px; padding: 30px 0 34px; }
  .eyebrow { margin-bottom: 23px; font-size: 8.5px; letter-spacing: .45px; }
  .hero-identity { gap: 17px; margin-bottom: 23px; }
  .hero-portrait { width: 84px; height: 98px; flex-basis: 84px; }
  .hero-name { margin-bottom: 5px; font-size: 13px; }
  .hero-title { font-size: clamp(36px, 8.3vw, 44px); letter-spacing: -.05em; }
  .hero-tagline { font-size: 23px; }
  .hero-description { max-width: 54ch; }
  .hero-bio { margin-bottom: 0; }
  .hero-figures { justify-self: center; }
  .hero-art { padding: 18px 13px 21px; }
  .hero-art-secondary { padding-top: 10px; padding-bottom: 16px; }
  .figure-caption, .figure-explanation { margin-right: 14px; margin-left: 14px; }
  .research-section, .publications-section { padding: 42px 0 46px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 12px; margin-bottom: 28px; }
  .section-title { font-size: 32px; }
  .section-number { font-size: 9px; }
  .research-intro { margin-bottom: 27px; font-size: 14px; }
  .research-item { grid-template-columns: 20px minmax(0, 1fr); column-gap: 12px; row-gap: 16px; padding: 26px 0; }
  .research-body { grid-column: 2; }
  .research-area { margin-bottom: 9px; font-size: 9px; }
  .research-question { max-width: 27ch; font-size: 24px; }
  .research-papers { gap: 11px 19px; }
  .publication-row { grid-template-columns: minmax(0, 1fr) 35px; gap: 13px; padding: 24px 0; }
  .publication-featured { padding: 23px 13px; }
  .publication-with-figure { grid-template-columns: 1fr; gap: 18px; }
  .publication-preview { width: min(220px, 100%); }
  .publication-index { display: none; }
  .publication-title { font-size: 18px; }
  .publication-meta { font-size: 9px; letter-spacing: .35px; }
  .publication-year { font-size: 9px; }
  .publication-authors { font-size: 12px; }
  .publication-summary { font-size: 13px; }
  .publication-resources { gap: 19px; }
  .contact-section { grid-template-columns: 1fr; gap: 22px; padding: 42px 0 46px; }
  .contact-section .section-title { font-size: 36px; }
  .contact-links a { font-size: 12px; }
  .site-footer { flex-wrap: wrap; gap: 12px; padding-bottom: 34px; font-size: 9px; }
  .footer-note { display: none; }
}
@media (max-width: 360px) {
  .brand-name, html[data-theme="fusion"] .brand-name { font-size: 16px; }
  .site-header { gap: 5px; }
  .header-github { flex-basis: 40px; }
  .hero-portrait { width: 72px; height: 86px; flex-basis: 72px; }
  .hero-identity { gap: 14px; }
  .eyebrow { font-size: 8px; }
  .research-papers { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal-active { opacity: 1 !important; transform: none !important; animation: none !important; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media print {
  .reveal-active { opacity: 1 !important; transform: none !important; animation: none !important; }
}