:root {
  --page: #111516;
  --surface: #171d1e;
  --ink: #edf1ef;
  --ink-soft: #c4ccca;
  --muted: #9ca9a7;
  --line: #303a3b;
  --accent: #9dbbc0;
  --content: 1100px;
  color-scheme: dark;
  font-synthesis: none;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 400 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, figure { margin-top: 0; }
::selection { background: var(--accent); color: var(--page); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
section[id] { scroll-margin-top: 88px; }
.shell { width: min(calc(100% - 64px), var(--content)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 50; top: -60px; left: 20px; padding: 9px 14px; background: var(--ink); color: var(--page); }
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(17, 21, 22, .96);
  backdrop-filter: blur(12px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 68px; }
.wordmark { display: inline-flex; align-items: center; gap: 8px; flex: none; font-size: .95rem; font-weight: 650; letter-spacing: -.02em; text-decoration: none; }
.wordmark-icon { width: 28px; height: 28px; flex: none; }
.wordmark-mark { color: var(--accent); font-weight: 400; }
.site-nav { display: flex; align-items: center; gap: clamp(18px, 2.6vw, 34px); }
.site-nav a { color: var(--ink-soft); font-size: .78rem; text-decoration: none; transition: color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--ink); }

.hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(250px, .7fr); align-items: center; gap: clamp(48px, 8vw, 110px); min-height: 590px; padding-block: 78px 88px; }
.hero-copy { max-width: 660px; }
.hero-portrait { width: 100%; margin: 0; }
.hero-portrait img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; border: 1px solid var(--line); }
.eyebrow, .section-label { color: var(--accent); font-size: .71rem; font-weight: 650; letter-spacing: .12em; line-height: 1.55; text-transform: uppercase; }
.eyebrow { margin-bottom: 18px; }
.hero h1 { margin: 0 0 15px; font-size: clamp(3.75rem, 6.5vw, 5.55rem); font-weight: 650; letter-spacing: -.065em; line-height: 1.02; }
.hero-lead { max-width: 580px; margin-bottom: 20px; font-size: clamp(1.32rem, 2.2vw, 1.7rem); font-weight: 400; letter-spacing: -.025em; line-height: 1.38; }
.hero-description { max-width: 620px; margin-bottom: 18px; color: var(--ink-soft); font-size: .94rem; line-height: 1.72; }
.hero-description a { color: var(--ink); text-decoration-color: var(--muted); text-underline-offset: 3px; }
.hero-description a:hover { text-decoration-color: var(--accent); }
.hero-links { display: flex; flex-wrap: wrap; gap: 24px; }
.hero-links a { border-bottom: 1px solid var(--muted); padding-bottom: 3px; font-size: .82rem; font-weight: 600; text-decoration: none; }
.hero-links a:hover { border-color: var(--accent); color: var(--accent); }
.hero-links span { padding-left: 7px; font-weight: 400; }

.section { padding-block: clamp(76px, 8vw, 108px); border-top: 1px solid var(--line); }
.section-intro { max-width: 780px; margin-bottom: 43px; }
.section-label { margin-bottom: 17px; }
.section-intro h2, .contact-grid h2 { margin-bottom: 15px; font-size: clamp(2.25rem, 4vw, 3.35rem); font-weight: 620; letter-spacing: -.05em; line-height: 1.12; }
.section-intro > p:last-child { max-width: 680px; margin-bottom: 0; color: var(--ink-soft); font-size: .96rem; line-height: 1.7; }
.research-section, .experience-section, .honors-section { background: var(--surface); }
.research-section .section-intro > p:last-child { max-width: 760px; }
.research-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; border-block: 1px solid var(--line); padding-block: 25px 27px; }
.research-step h3 { margin: 0 0 14px; font-size: 1.08rem; font-weight: 620; letter-spacing: -.02em; line-height: 1.4; }
.research-step figure { margin: 0; }
.research-step figure > img, .research-video-link { width: 100%; aspect-ratio: 16 / 9; border: 1px solid var(--line); }
.research-step figure > img { height: auto; object-fit: cover; }
.research-video-link { position: relative; display: block; overflow: hidden; transition: border-color .2s ease; }
.research-video-link:hover, .research-video-link:focus-visible { border-color: var(--accent); }
.research-video-link img, .research-video-link video { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.research-video-link video { opacity: 0; }
.research-video-link.is-playing video { opacity: 1; }
.research-step figcaption { margin-top: 9px; color: var(--muted); font-size: .76rem; }

.experience-list, .education-list, .publication-list, .honors-list { border-top: 1px solid var(--line); }
.experience-item, .education-item, .publication, .honor-item { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 35px; border-bottom: 1px solid var(--line); padding: 25px 0 27px; }
.experience-date, .education-date, .publication-meta, .honor-date { margin: 4px 0 0; color: var(--muted); font-size: .76rem; line-height: 1.5; }
.experience-item h3, .education-item h3, .publication h3, .honor-item h3 { margin: 0 0 6px; font-size: 1.08rem; font-weight: 620; letter-spacing: -.02em; line-height: 1.4; }
.experience-item h3 a, .publication h3 a { text-decoration: none; }
.experience-item h3 a:hover, .publication h3 a:hover { color: var(--accent); }
.experience-role, .experience-affiliation, .education-detail, .honor-source { margin-bottom: 6px; color: var(--muted); font-size: .81rem; }
.experience-role { margin-bottom: 1px; color: var(--ink-soft); }
.honor-source abbr { text-decoration: none; }

.publication-meta span { display: block; margin-top: 3px; }
.publication h3 { max-width: 790px; }
.publication-authors { max-width: 790px; margin: 7px 0 0; color: var(--muted); font-size: .8rem; line-height: 1.6; }
.publication-authors strong { color: var(--ink-soft); font-weight: 650; }
.publication-link { display: inline-block; margin-top: 8px; color: var(--accent); font-size: .76rem; text-decoration: none; }
.publication-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.publication-more { margin: 19px 0 0; color: var(--muted); font-size: .8rem; }
.publication-more a { color: var(--ink-soft); text-underline-offset: 3px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 70px; }
.contact-grid .section-label { margin-bottom: 17px; }
.contact-grid h2 { margin-bottom: 15px; }
.contact-email { display: flex; justify-content: space-between; gap: 15px; border-bottom: 1px solid var(--line); padding-bottom: 11px; font-size: clamp(1.15rem, 2vw, 1.55rem); font-weight: 500; letter-spacing: -.025em; text-decoration: none; overflow-wrap: anywhere; }
.contact-email:hover { border-color: var(--accent); color: var(--accent); }
.contact-email span { flex: none; font-weight: 400; }
.contact-links { display: flex; flex-wrap: wrap; gap: 12px 22px; margin-top: 22px; }
.contact-links a { color: var(--ink-soft); font-size: .8rem; text-decoration: none; }
.contact-links a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; padding-block: 24px; font-size: .73rem; }
.footer-inner a { text-decoration: none; }
.footer-inner a:hover { color: var(--ink); }

@media (max-width: 850px) {
  .hero { grid-template-columns: minmax(0, 1fr) minmax(210px, .55fr); gap: 36px; min-height: 0; }
  .hero h1 { font-size: clamp(3.5rem, 7vw, 4.6rem); }
  .contact-grid { gap: 38px; }
}
@media (max-width: 700px) {
  .shell { width: min(calc(100% - 38px), var(--content)); }
  .header-inner { display: block; min-height: 0; padding-block: 14px 13px; }
  .wordmark { display: flex; width: fit-content; margin-bottom: 11px; }
  .site-nav { justify-content: space-between; gap: 12px; }
  .site-nav a { font-size: .73rem; }
  .hero { display: block; padding-block: 60px 74px; }
  .hero-portrait { max-width: 360px; margin-top: 42px; }
  .hero h1 { font-size: clamp(3.2rem, 10vw, 4.5rem); }
  .hero-lead { font-size: 1.42rem; }
  .section { padding-block: 68px; }
  .section-intro { margin-bottom: 32px; }
  .research-steps { display: block; border-bottom: 0; padding-block: 0; }
  .research-step { border-bottom: 1px solid var(--line); padding-block: 21px 23px; }
  .research-step h3 { margin-bottom: 12px; }
  .experience-item, .education-item, .publication, .honor-item { grid-template-columns: 1fr; gap: 8px; padding-block: 21px 23px; }
  .experience-date, .education-date, .publication-meta, .honor-date { margin: 0; }
  .publication-meta span { display: inline; margin: 0 0 0 6px; }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 390px) {
  .site-nav { gap: 4px; }
  .site-nav a { font-size: .71rem; }
  .hero h1 { font-size: 3.1rem; }
  .contact-email { font-size: 1.12rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .site-nav a, .research-video-link { transition: none; }
}