:root {
  --ink: #071822;
  --ink-soft: #31434c;
  --paper: #f4f7f5;
  --white: #ffffff;
  --accent: #4de2c4;
  --accent-dark: #0f725f;
  --line: rgba(7, 24, 34, 0.17);
  --max: 1240px;
  --header: 82px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
[id] { scroll-margin-top: 76px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "DM Sans", sans-serif; font-size: 16px; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 12px 16px; color: var(--ink); background: var(--accent); }
.skip-link:focus { top: 12px; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header); display: flex; align-items: center; justify-content: space-between; padding: 0 max(24px, calc((100vw - var(--max)) / 2)); color: var(--white); transition: background .3s, color .3s, height .3s; }
.site-header.scrolled { height: 66px; color: var(--ink); background: rgba(244,247,245,.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { font-family: "Manrope", sans-serif; font-weight: 700; font-size: 1.45rem; letter-spacing: -.06em; }
.brand span { color: var(--accent); }
#site-nav { display: flex; align-items: center; gap: 30px; font-size: .87rem; font-weight: 600; }
#site-nav a { position: relative; }
#site-nav a:not(.nav-contact)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 1px; background: currentColor; transition: right .25s; }
#site-nav a:hover::after, #site-nav a:focus-visible::after { right: 0; }
.nav-contact { padding: 10px 16px; border: 1px solid currentColor; }
.menu-button { display: none; border: 0; background: transparent; color: inherit; }
.hero { position: relative; min-height: 100svh; padding: calc(var(--header) + 5vh) max(24px, calc((100vw - var(--max)) / 2)) 5vh; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr); grid-template-rows: 1fr auto; column-gap: 7vw; color: var(--white); background: var(--ink); }
.hero::after { content: ""; position: absolute; width: 34vw; height: 34vw; right: -13vw; top: 10vh; border: 1px solid rgba(77,226,196,.25); border-radius: 50%; box-shadow: 0 0 0 7vw rgba(77,226,196,.035), 0 0 0 14vw rgba(77,226,196,.025); }
.hero-grid { position: absolute; inset: 0; opacity: .13; background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px); background-size: 7.5vw 7.5vw; mask-image: linear-gradient(to bottom, black, transparent 78%); }
.hero-copy { position: relative; z-index: 2; align-self: center; max-width: 760px; }
.eyebrow, .section-index, .mini-label { margin: 0; text-transform: uppercase; letter-spacing: .18em; font-size: .75rem; font-weight: 600; }
.eyebrow { color: var(--accent); }
h1, h2, h3, p { text-wrap: balance; }
h1 { margin: .55rem 0 1.4rem; font-family: "Manrope", sans-serif; font-size: clamp(5.2rem, 10.8vw, 10.8rem); line-height: .76; letter-spacing: -.085em; font-weight: 500; }
h1 span { color: var(--accent); }
h1 em { font-style: normal; font-size: .16em; letter-spacing: .02em; vertical-align: baseline; margin-left: .35em; }
.hero-intro { max-width: 650px; margin: 0; color: rgba(255,255,255,.76); font-size: clamp(1.05rem, 1.6vw, 1.35rem); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; min-width: 210px; gap: 24px; padding: 15px 18px; border: 1px solid currentColor; font-size: .9rem; font-weight: 600; transition: color .25s, background .25s, transform .25s; }
.button:hover { transform: translateY(-3px); }
.button-primary { color: var(--ink); border-color: var(--accent); background: var(--accent); }
.button-quiet { min-width: auto; padding-inline: 0; border-width: 0 0 1px; color: rgba(255,255,255,.78); }
.portrait-wrap { position: relative; z-index: 2; align-self: center; width: min(34vw, 440px); margin: 2vh 0 0; justify-self: end; }
.portrait-frame { position: relative; overflow: hidden; aspect-ratio: 4 / 5; background: #d8e3e0; }
.portrait-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(7,24,34,.35), transparent 42%); mix-blend-mode: multiply; }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.72) contrast(1.04); transition: transform .8s cubic-bezier(.2,.7,.1,1); }
.portrait-wrap:hover img { transform: scale(1.025); }
.portrait-wrap figcaption { margin-top: 12px; color: rgba(255,255,255,.55); font-size: .76rem; text-transform: uppercase; letter-spacing: .15em; }
.hero-note { position: relative; z-index: 2; grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: end; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.2); }
.hero-note span { font-size: .75rem; color: var(--accent); text-transform: uppercase; letter-spacing: .17em; }
.hero-note strong { text-align: right; font-family: "Manrope", sans-serif; font-weight: 500; line-height: 1.2; }
.hero-reveal { opacity: 0; transform: translateY(24px); animation: hero-in .75s forwards cubic-bezier(.18,.7,.2,1); }
.hero-copy .hero-reveal:nth-child(2) { animation-delay: .1s; }
.hero-copy .hero-reveal:nth-child(3) { animation-delay: .2s; }
.hero-copy .hero-reveal:nth-child(4), .portrait-wrap { animation-delay: .3s; }
.hero-note { animation-delay: .45s; }
@keyframes hero-in { to { opacity: 1; transform: none; } }
.section-pad { padding: 120px max(24px, calc((100vw - var(--max)) / 2)); }
.section-index { color: var(--accent-dark); }
.statement { display: grid; grid-template-columns: .62fr 1.75fr; gap: 6vw; border-bottom: 1px solid var(--line); }
.statement h2, .section-heading h2, .publication-intro h2, .collab-heading h2, .contact h2 { margin: 0; font-family: "Manrope", sans-serif; font-size: clamp(2.5rem, 5.3vw, 5.6rem); line-height: 1.02; letter-spacing: -.06em; font-weight: 500; }
.statement h2 span, .collab-heading h2 span { color: var(--accent-dark); }
.statement div > p { max-width: 720px; margin: 42px 0 0 auto; color: var(--ink-soft); font-size: 1.1rem; }
.research { background: var(--white); }
.section-heading { display: grid; grid-template-columns: .62fr 1.75fr; gap: 6vw; margin-bottom: 74px; }
.section-heading h2 { max-width: 860px; font-size: clamp(2.5rem, 4.7vw, 4.8rem); }
.research-list { margin-left: calc((100% + 6vw) / 2.37); }
.research-list article { display: grid; grid-template-columns: 72px 1fr; gap: 20px; padding: 30px 0; border-top: 1px solid var(--line); }
.research-list article:last-child { border-bottom: 1px solid var(--line); }
.research-list article > span, .publication-list .pub-year { color: var(--accent-dark); font-family: "Manrope", sans-serif; font-size: .8rem; }
.research-list h3 { margin: 0 0 9px; font-family: "Manrope", sans-serif; font-size: 1.4rem; letter-spacing: -.03em; }
.research-list p { max-width: 630px; margin: 0; color: var(--ink-soft); }
.publications { display: grid; grid-template-columns: .68fr 1.32fr; gap: 8vw; }
.publication-intro { align-self: start; position: sticky; top: 100px; }
.publication-intro h2 { margin: 28px 0 54px; font-size: clamp(2.4rem, 4.1vw, 4.4rem); }
.metrics { display: flex; gap: 32px; }
.metrics div { padding-right: 28px; border-right: 1px solid var(--line); }
.metrics div:last-child { border: 0; }
.metrics strong { display: block; font-family: "Manrope", sans-serif; font-size: 2.2rem; line-height: 1; letter-spacing: -.05em; }
.metrics span, .metric-note { color: var(--ink-soft); font-size: .74rem; }
.metric-note { margin-top: 14px; }
.publication-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.publication-list a { display: grid; grid-template-columns: 64px 1fr 24px; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--line); transition: padding .25s, color .25s; }
.publication-list a:hover { padding-left: 12px; color: var(--accent-dark); }
.publication-list strong, .publication-list em { display: block; }
.publication-list strong { font-family: "Manrope", sans-serif; font-size: 1.08rem; line-height: 1.4; }
.publication-list em { margin-top: 7px; color: var(--ink-soft); font-size: .82rem; font-style: normal; }
.pub-arrow { opacity: .45; transition: transform .25s; }
.publication-list a:hover .pub-arrow { transform: translate(3px,-3px); }
.text-link { display: inline-flex; gap: 10px; margin-top: 30px; padding-bottom: 5px; border-bottom: 1px solid; font-weight: 600; font-size: .9rem; }
.collaboration { color: var(--white); background: var(--ink); }
.collab-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 10vw; }
.collaboration .section-index { color: var(--accent); }
.collab-heading h2 { margin-top: 28px; font-size: clamp(3rem, 5.7vw, 6rem); }
.collab-heading h2 span { color: var(--accent); }
.collab-body > p { margin: 0 0 42px; color: rgba(255,255,255,.72); font-size: 1.2rem; }
.collab-body ul { margin: 0 0 44px; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.2); }
.collab-body li { display: grid; grid-template-columns: 48px 1fr; padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,.2); }
.collab-body li span { color: var(--accent); font-size: .76rem; }
.button-light { color: var(--ink); border-color: var(--white); background: var(--white); }
.teaching { background: var(--white); }
.teaching-layout { display: grid; grid-template-columns: 1.3fr .7fr; gap: 9vw; margin-left: calc((100% + 6vw) / 2.37); }
.mini-label { margin-bottom: 26px; color: var(--accent-dark); }
.course-list > div { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 22px 0; border-top: 1px solid var(--line); }
.course-list > div:last-child { border-bottom: 1px solid var(--line); }
.course-list span { color: var(--accent-dark); font-size: .82rem; }
.course-list strong { font-family: "Manrope", sans-serif; font-size: 1.15rem; }
.service p:not(.mini-label) { margin: 0; padding: 0 0 22px; color: var(--ink-soft); }
.service strong { color: var(--ink); }
.credentials { border-top: 1px solid var(--line); }
.credential-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 30px; margin-top: 56px; }
.credential-grid > div { padding-top: 18px; border-top: 3px solid var(--ink); }
.credential-grid span { color: var(--accent-dark); font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; }
.credential-grid strong { display: block; margin-top: 34px; font-family: "Manrope", sans-serif; font-size: 1.18rem; }
.credential-grid p { margin: 7px 0 0; color: var(--ink-soft); font-size: .86rem; }
.contact { color: var(--white); background: #0e2a37; }
.contact .section-index { color: var(--accent); }
.contact-main { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin: 54px 0 90px; }
.contact-main h2 { max-width: 730px; font-size: clamp(3.6rem, 8vw, 8.5rem); }
.contact-main > a { flex: none; padding-bottom: 8px; border-bottom: 1px solid var(--accent); color: var(--accent); font-weight: 600; }
.contact-meta { display: flex; justify-content: space-between; gap: 40px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.2); color: rgba(255,255,255,.65); font-size: .88rem; }
.contact-meta p { margin: 0; }
.contact-meta div { display: flex; flex-wrap: wrap; gap: 24px; color: var(--white); }
footer { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 28px max(24px, calc((100vw - var(--max)) / 2)); background: var(--ink); color: rgba(255,255,255,.55); }
footer p { margin: 0; font-size: .74rem; }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s, transform .7s; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  :root { --header: 68px; }
  .menu-button { display: block; z-index: 2; min-width: 48px; min-height: 48px; padding: 8px 0 8px 12px; font-weight: 600; text-align: right; cursor: pointer; }
  #site-nav { position: fixed; inset: 0; display: none; flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 0; padding: calc(var(--header) + 26px) 24px 30px; overflow-y: auto; background: var(--ink); color: var(--white); font-family: "Manrope", sans-serif; font-size: 1.3rem; }
  #site-nav.open { display: flex; }
  #site-nav a:not(.nav-contact) { display: flex; align-items: center; min-height: 64px; border-bottom: 1px solid rgba(255,255,255,.18); }
  #site-nav a:not(.nav-contact)::after { display: none; }
  .nav-contact { display: flex; justify-content: space-between; align-items: center; min-height: 52px; margin-top: 28px; font-size: 1rem; }
  .site-header.menu-open { color: var(--white); background: var(--ink); border-color: transparent; }
  .site-header.menu-open .brand { position: relative; z-index: 3; }
  .hero { min-height: auto; padding-top: 118px; grid-template-columns: 1fr; grid-template-rows: auto; gap: 48px; }
  h1 { font-size: clamp(5rem, 23vw, 8rem); }
  .portrait-wrap { width: min(78vw, 480px); justify-self: start; }
  .hero-note { grid-column: 1; }
  .statement, .section-heading, .publications, .collab-inner { grid-template-columns: 1fr; }
  .statement, .section-heading { gap: 28px; }
  .research-list, .teaching-layout { margin-left: 0; }
  .publication-intro { position: static; }
  .publications { gap: 68px; }
  .teaching-layout { grid-template-columns: 1fr; }
  .credential-grid { grid-template-columns: repeat(2,1fr); }
  .contact-main { display: block; }
  .contact-main > a { display: inline-block; margin-top: 40px; }
}

@media (max-width: 580px) {
  :root { --header: 62px; }
  .site-header { padding-inline: 20px; }
  .section-pad { padding: 64px 20px; }
  .hero { grid-template-columns: minmax(0, 1fr); gap: 0; min-height: 0; padding: calc(var(--header) + 24px) 20px 38px; }
  .hero-copy { display: contents; }
  .hero .eyebrow { order: 1; font-size: .68rem; letter-spacing: .13em; }
  .hero h1 { order: 2; margin: 12px 0 19px; font-size: clamp(4.3rem, 18vw, 5.5rem); line-height: .81; }
  .hero h1 em { font-size: .19em; letter-spacing: 0; margin-left: .25em; }
  .portrait-wrap { order: 3; width: 100%; max-width: none; margin: 0; }
  .portrait-frame { aspect-ratio: 1.68; }
  .portrait-frame img { object-position: center 31%; }
  .portrait-wrap figcaption { display: none; }
  .hero-intro { order: 4; max-width: 34rem; margin-top: 18px; font-size: 1rem; line-height: 1.5; }
  .hero-actions { order: 5; flex-direction: row; flex-wrap: nowrap; align-items: center; gap: 16px; margin-top: 20px; }
  .hero-actions .button-primary { min-width: 0; flex: 1; min-height: 48px; padding: 11px 13px; font-size: .83rem; }
  .hero-actions .button-quiet { min-width: 0; flex: none; gap: 7px; padding: 10px 0; white-space: nowrap; font-size: .8rem; }
  .statement h2, .section-heading h2, .publication-intro h2, .collab-heading h2, .contact h2 { font-size: clamp(2.05rem, 9vw, 2.8rem); line-height: 1.08; letter-spacing: -.055em; }
  .statement div > p { margin-top: 24px; font-size: 1rem; }
  .section-heading { margin-bottom: 36px; }
  .research-list article { padding: 21px 0; }
  .research-list h3 { font-size: 1.18rem; }
  .research-list p { font-size: .95rem; }
  .publications { gap: 34px; }
  .publication-intro h2 { margin: 18px 0 30px; }
  .publication-list a { padding: 20px 0; }
  .publication-list strong { font-size: 1rem; }
  .collab-heading h2 { margin-top: 18px; }
  .collab-body > p { margin-bottom: 28px; font-size: 1rem; }
  .collab-body li { padding: 16px 0; }
  .collab-body ul { margin-bottom: 28px; }
  .contact-main h2 { font-size: clamp(2.6rem, 11vw, 4rem); }
  .contact-main > a { overflow-wrap: anywhere; font-size: .95rem; }
  .contact-meta div { gap: 12px 22px; }
  .hero-note { display: none; }
  .research-list article { grid-template-columns: 44px 1fr; }
  .publication-list a { grid-template-columns: 44px 1fr 18px; gap: 12px; }
  .metrics { gap: 16px; }
  .metrics div { padding-right: 14px; }
  .metrics strong { font-size: 1.8rem; }
  .course-list > div { grid-template-columns: 1fr; gap: 4px; }
  .credential-grid { grid-template-columns: 1fr; }
  .contact-main { margin-bottom: 62px; }
  .contact-meta, footer { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 360px) {
  .hero-actions { flex-wrap: wrap; gap: 8px; }
  .hero-actions .button-primary { flex-basis: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}