:root {
  --bg: #f7f6f2;
  --surface: #fbfaf7;
  --ink: #1d2229;
  --muted: #65707b;
  --line: #d9d8d2;
  --accent: #173a5e;
  --accent-soft: #e9eef3;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.72; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration-color: rgba(23,58,94,.45); text-underline-offset: .18em; }
a:hover { color: var(--accent); text-decoration-color: currentColor; }
.site-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(217,216,210,.85); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.wordmark { font-family: var(--serif); font-size: 1.3rem; font-weight: 700; letter-spacing: -.015em; text-decoration: none; }
.nav-links { display: flex; flex-wrap: wrap; gap: 20px; }
.nav-links a { font-size: .9rem; text-decoration: none; color: #46515c; }
.nav-links a:hover, .nav-links a[aria-current='page'] { color: var(--accent); }
main { padding: 72px 0 96px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr); gap: 72px; align-items: center; padding: 26px 0 86px; }
.eyebrow { margin: 0 0 16px; color: var(--accent); font-size: .78rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--serif); letter-spacing: -.025em; }
h1 { margin: 0; font-size: clamp(3.5rem, 8vw, 6.4rem); line-height: .98; font-weight: 500; }
.hero-role { margin: 26px 0 4px; font-size: 1.28rem; font-weight: 650; }
.hero-affiliation { margin: 0; color: var(--muted); }
.hero-copy { max-width: 710px; margin: 30px 0 0; font-size: 1.08rem; color: #3c4650; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 17px; border: 1px solid var(--accent); border-radius: 999px; background: var(--accent); color: white; font-size: .93rem; font-weight: 650; text-decoration: none; }
.button:hover { color: white; filter: brightness(1.08); }
.button.secondary { background: transparent; color: var(--accent); }
.button.secondary:hover { background: var(--accent-soft); }
.portrait-wrap { margin: 0; }
.portrait { display: block; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: center center; border-radius: 8px; box-shadow: 0 20px 56px rgba(30,43,55,.13); border: 1px solid rgba(29,34,41,.08); }
.section { padding: 66px 0; border-top: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 220px 1fr; gap: 42px; align-items: start; margin-bottom: 34px; }
.section-title { margin: 0; font-size: 2rem; font-weight: 500; }
.section-intro { margin: 0; max-width: 720px; color: var(--muted); }
.research-list { display: grid; gap: 0; }
.research-item { display: grid; grid-template-columns: minmax(0, 1fr) 160px; gap: 44px; padding: 34px 0; border-top: 1px solid var(--line); }
.research-item:first-child { border-top: 0; padding-top: 0; }
.research-title { margin: 0 0 7px; font-size: 1.38rem; font-weight: 600; line-height: 1.25; }
.research-meta { margin: 0 0 15px; color: var(--accent); font-size: .86rem; font-weight: 700; letter-spacing: .03em; }
.research-desc { margin: 0; color: #4b5660; }
.research-links { margin-top: 14px; display: flex; gap: 16px; flex-wrap: wrap; font-size: .91rem; }
.research-links span { color: var(--muted); }
.research-date { text-align: right; color: var(--muted); font-size: .9rem; }
.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 58px; }
.card-minimal { border-top: 2px solid var(--ink); padding-top: 18px; }
.card-minimal h3 { margin: 0 0 12px; font-size: 1.28rem; }
.card-minimal p { margin: 0; color: #4b5660; }
.prep-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 30px; }
.prep-grid h3 { margin: 0 0 14px; font-size: 1.1rem; }
.course-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; color: var(--muted); font-size: .91rem; line-height: 1.45; }
.course-list li { padding-bottom: 8px; border-bottom: 1px solid rgba(217,216,210,.7); }
.course-list li:last-child { border-bottom: 0; }
.page-header { padding: 20px 0 54px; }
.page-header h1 { font-size: clamp(3rem, 7vw, 5rem); }
.page-header p { max-width: 860px; margin: 26px 0 0; color: var(--muted); font-size: 1.08rem; }
.contact-header p { max-width: none; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.contact-block { border-top: 1px solid var(--line); padding-top: 20px; }
.contact-label { display: block; margin-bottom: 6px; color: var(--muted); font-size: .78rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.contact-value { font-family: var(--serif); font-size: 1.26rem; }
.cv-header { padding-bottom: 42px; }
.cv-header .actions { margin-top: 22px; }
.cv-sheet { max-width: 980px; padding: 0 0 20px; }
.cv-contact { color: var(--muted); margin-bottom: 30px; }
.cv-contact span { margin: 0 7px; }
.cv-section { padding: 28px 0; border-top: 1px solid var(--line); }
.cv-section h2 { margin: 0 0 20px; font-size: 1rem; color: var(--accent); font-family: var(--sans); font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
.cv-section > p { margin: 7px 0; color: #4b5660; }
.cv-entry { display: grid; grid-template-columns: minmax(0, 1fr) 210px; gap: 40px; margin: 0 0 24px; }
.cv-entry:last-child { margin-bottom: 0; }
.cv-entry h3 { margin: 0 0 3px; font-size: 1.18rem; line-height: 1.32; }
.cv-entry p { margin: 0; color: #4b5660; }
.cv-entry ul, .cv-list { margin: 10px 0 0; padding-left: 1.15rem; color: #4b5660; }
.cv-entry li, .cv-list li { margin: 5px 0; }
.cv-meta { color: var(--accent) !important; font-size: .88rem; font-weight: 700; }
.cv-date { text-align: right; color: var(--muted); font-size: .9rem; }
.cv-language-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
.cv-language-grid p { margin: 0; color: #4b5660; }
.site-footer { border-top: 1px solid var(--line); padding: 28px 0 42px; color: var(--muted); font-size: .82rem; }
.footer-row { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
:focus-visible { outline: 3px solid rgba(23,58,94,.28); outline-offset: 4px; border-radius: 3px; }
.skip-link { position: absolute; left: 16px; top: -80px; z-index: 99; background: var(--accent); color: white; padding: 10px 14px; border-radius: 4px; text-decoration: none; }
.skip-link:focus { top: 14px; }
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 6px; }
  .portrait-wrap { max-width: 430px; }
  .section-head { grid-template-columns: 1fr; gap: 12px; }
  .prep-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-item { grid-template-columns: 1fr; gap: 9px; }
  .research-date { text-align: left; }
  .two-col, .contact-grid { grid-template-columns: 1fr; }
  .cv-entry { grid-template-columns: 1fr; gap: 7px; }
  .cv-date { text-align: left; }
}
@media (max-width: 680px) {
  .site-shell { width: min(100% - 28px, 1120px); }
  .nav { align-items: flex-start; flex-direction: column; padding: 17px 0 14px; gap: 8px; }
  .nav-links { gap: 13px; }
  main { padding-top: 42px; }
  h1 { font-size: 3.25rem; }
  .prep-grid, .cv-language-grid { grid-template-columns: 1fr; }
  .contact-value { font-size: 1.08rem; overflow-wrap: anywhere; }
}
@media print {
  .site-header, .site-footer, .actions { display: none; }
  body { background: white; }
  main { padding: 0; }
  .cv-sheet { max-width: none; }
}


/* v4: visual excerpts and tighter editorial treatment */
.feature-entry { display: grid; grid-template-columns: minmax(0, .78fr) minmax(420px, 1.22fr); gap: 64px; align-items: center; }
.feature-copy { max-width: 560px; }
.feature-title { margin: 4px 0 18px; font-size: clamp(2rem, 4vw, 3.25rem); font-weight: 500; line-height: 1.06; }
.feature-deck { margin: 0; color: #4b5660; font-size: 1.04rem; }
.feature-date { margin: 18px 0 0; color: var(--muted); font-size: .9rem; }
.visual-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.visual-card { margin: 0; display: block; overflow: hidden; border: 1px solid var(--line); border-radius: 7px; background: #eeece4; box-shadow: 0 14px 38px rgba(29,34,41,.08); text-decoration: none; }
.visual-card img { display: block; width: 100%; height: auto; }
.visual-card-wide img { aspect-ratio: 16 / 9; object-fit: cover; }
.visual-card figcaption, .visual-caption { display: grid; gap: 3px; padding: 15px 17px 16px; background: var(--surface); }
.visual-card figcaption span, .visual-caption { color: var(--muted); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.visual-card figcaption strong { color: var(--ink); font-family: var(--serif); font-size: 1.04rem; letter-spacing: -.01em; text-transform: none; }
.visual-card-wide .visual-caption { display: block; }
.compact-list .research-item { padding-top: 28px; padding-bottom: 28px; }
.contact-header p { white-space: nowrap; }
.contact-value { white-space: nowrap; }
.cv-header + .cv-sheet { margin-top: 6px; }
@media (max-width: 900px) {
  .feature-entry { grid-template-columns: 1fr; gap: 34px; }
  .feature-copy { max-width: 720px; }
  .visual-grid { grid-template-columns: 1fr; }
  .contact-header p { white-space: normal; }
}
@media (max-width: 680px) {
  .contact-value { white-space: normal; }
}


/* v5: research-project editorial page */
.title-link { text-decoration: none; }
.title-link:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.project-hero { max-width: 980px; padding: 20px 0 72px; }
.project-hero h1 { font-size: clamp(3.1rem, 7.2vw, 6.25rem); line-height: .98; }
.project-subtitle { margin: 20px 0 0; font-family: var(--serif); font-size: clamp(1.45rem, 2.8vw, 2.2rem); color: var(--accent); }
.project-lede { max-width: 850px; margin: 32px 0 0; color: #3d4852; font-size: 1.18rem; line-height: 1.75; }
.project-meta { display: flex; flex-wrap: wrap; gap: 9px 24px; margin-top: 24px; color: var(--muted); font-size: .84rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.project-meta span + span::before { content: '·'; margin-right: 24px; color: #a2a7ab; }
.project-figure-lead { padding-top: 0; border-top: 0; }
.research-figure { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: 0 18px 46px rgba(29,34,41,.08); }
.research-figure img { display: block; width: 100%; height: auto; background: white; }
.research-figure figcaption { padding: 15px 18px 17px; color: var(--muted); font-size: .84rem; line-height: 1.55; border-top: 1px solid var(--line); background: var(--surface); }
.metric-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.metric { min-height: 160px; padding: 24px; border-top: 2px solid var(--ink); background: rgba(251,250,247,.52); }
.metric strong { display: block; font-family: var(--serif); font-size: clamp(2rem,4vw,3.2rem); line-height: 1; font-weight: 500; color: var(--accent); }
.metric span { display: block; max-width: 220px; margin-top: 16px; color: var(--muted); font-size: .9rem; line-height: 1.5; }
.method-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.method-card { padding: 26px 28px 28px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); }
.method-card h3, .repo-grid h3, .repo-banner h3 { margin: 5px 0 12px; font-size: 1.28rem; }
.method-card p, .repo-grid p, .repo-banner p { margin: 0; color: #4b5660; }
.method-card p + p { margin-top: 12px; }
.method-kicker { color: var(--accent); font-size: .72rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
code { padding: .08em .3em; border-radius: 3px; background: rgba(23,58,94,.07); color: #233f5d; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .88em; }
.research-visual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.repo-banner { display: flex; align-items: center; justify-content: space-between; gap: 34px; padding: 28px 30px; border: 1px solid var(--line); border-radius: 8px; background: var(--accent-soft); }
.repo-banner > div { max-width: 760px; }
.repo-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; margin-top: 24px; }
.repo-grid article { padding: 24px 0; border-top: 1px solid var(--line); }
.repro-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 64px; }
.minor-title { margin: 0 0 18px; font-size: 1.45rem; font-weight: 500; }
.numbered-steps { margin: 0; padding-left: 1.4rem; color: #4b5660; }
.numbered-steps li { margin: 0 0 12px; padding-left: .35rem; }
.data-table { border-top: 2px solid var(--ink); }
.data-row { display: grid; grid-template-columns: 135px 1fr; gap: 18px; padding: 14px 4px; border-bottom: 1px solid var(--line); color: #4b5660; }
.data-head { color: var(--ink); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.compact-project-section { padding-bottom: 52px; }
.project-footer-callout { margin: 28px 0 20px; padding: 42px; border-radius: 8px; background: #1d2d3d; color: white; }
.project-footer-callout h2 { max-width: 850px; margin: 0; color: white; font-size: clamp(1.8rem,4vw,3rem); line-height: 1.12; font-weight: 500; }
.project-footer-callout p:last-child { max-width: 760px; margin: 22px 0 0; color: #d8e0e7; }
.project-footer-callout a { color: white; }
@media (max-width: 900px) {
  .metric-grid, .repo-grid { grid-template-columns: 1fr; }
  .metric { min-height: 0; }
  .method-grid, .research-visual-grid, .repro-layout { grid-template-columns: 1fr; }
  .repo-banner { align-items: flex-start; flex-direction: column; }
  .project-meta span + span::before { margin-right: 12px; }
}
@media (max-width: 680px) {
  .project-hero { padding-bottom: 48px; }
  .project-hero h1 { font-size: 3.15rem; }
  .project-lede { font-size: 1.03rem; }
  .project-meta { display: grid; gap: 7px; }
  .project-meta span + span::before { content: none; }
  .method-card, .repo-banner, .project-footer-callout { padding: 22px; }
  .data-row { grid-template-columns: 100px 1fr; }
}


/* v6: selected program */
.selected-program-section { padding-top: 58px; padding-bottom: 58px; }
.program-row { display: grid; grid-template-columns: 1fr auto; gap: 38px; align-items: center; padding: 28px 0 26px; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); color: inherit; text-decoration: none; }
.program-row:hover h3 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .16em; }
.program-org { margin: 0 0 8px; color: var(--accent); font-size: .72rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.program-row h3 { margin: 0; font-family: var(--serif); font-size: clamp(1.45rem, 2.7vw, 2.05rem); font-weight: 600; }
.program-row h3 + p { margin: 8px 0 0; color: var(--muted); }
.program-date { min-width: 160px; color: var(--muted); font-size: .86rem; line-height: 1.6; text-align: right; }
@media (max-width: 680px) {
  .program-row { grid-template-columns: 1fr; gap: 14px; }
  .program-date { text-align: left; }
}


/* v7: consistency, scroll reveal, and finishing details */
.portrait-wrap figcaption { margin-top: 10px; color: var(--muted); font-size: .74rem; letter-spacing: .08em; text-align: right; text-transform: uppercase; }
.two-col { align-items: stretch; }
.card-minimal { display: flex; min-height: 100%; flex-direction: column; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.prep-grid > div { display: flex; min-height: 100%; flex-direction: column; }
.course-list { flex: 1; }
.course-list li:last-child { margin-top: auto; border-bottom: 1px solid rgba(217,216,210,.7); }
.contact-grid { align-items: stretch; }
.contact-block { display: flex; min-height: 112px; flex-direction: column; justify-content: flex-start; }
.contact-value { align-self: flex-start; display: inline-block; width: max-content; max-width: 100%; padding-bottom: .04em; border-bottom: 1px solid rgba(23,58,94,.48); text-decoration: none; line-height: 1.22; }
.contact-value:hover { border-bottom-color: currentColor; }
.project-impact { margin: 4px 0 34px; padding: clamp(44px,7vw,84px) clamp(28px,6vw,72px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.project-impact .eyebrow { margin-bottom: 18px; }
.project-impact p:last-child { max-width: 980px; margin: 0; font-family: var(--serif); font-size: clamp(2rem,4.7vw,4.35rem); font-weight: 500; letter-spacing: -.035em; line-height: 1.08; }
.replication-details { border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.replication-details summary { display: grid; grid-template-columns: 220px 1fr auto; gap: 42px; align-items: center; padding: 24px 0; cursor: pointer; list-style: none; }
.replication-details summary::-webkit-details-marker { display: none; }
.replication-details summary::after { content: '+'; color: var(--accent); font-family: var(--serif); font-size: 1.8rem; line-height: 1; transition: transform .3s ease; }
.replication-details[open] summary::after { transform: rotate(45deg); }
.replication-details summary span { font-family: var(--serif); font-size: 1.7rem; letter-spacing: -.02em; }
.replication-details summary small { color: var(--muted); font-size: .94rem; }
.replication-details-body { display: grid; grid-template-columns: .72fr 1.28fr; gap: 54px; padding: 18px 0 40px; }
.measurement-note { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 54px; }
.reveal-ready [data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity .8s cubic-bezier(.22,.61,.36,1), transform .9s cubic-bezier(.22,.61,.36,1); }
.reveal-ready [data-reveal].is-visible { opacity: 1; transform: none; }
.reveal-ready [data-reveal-item] { opacity: 0; transform: translateY(22px); transition: opacity .62s ease var(--reveal-delay, 100ms), transform .72s cubic-bezier(.22,.61,.36,1) var(--reveal-delay, 100ms); }
.reveal-ready .is-visible [data-reveal-item] { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal-ready [data-reveal], .reveal-ready [data-reveal-item] { opacity: 1; transform: none; transition: none; }
}
@media (max-width: 900px) {
  .replication-details summary { grid-template-columns: 1fr auto; gap: 10px 20px; }
  .replication-details summary small { grid-column: 1; }
  .replication-details summary::after { grid-column: 2; grid-row: 1 / span 2; }
  .replication-details-body, .measurement-note { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .portrait-wrap figcaption { text-align: left; }
  .project-impact { padding-left: 0; padding-right: 0; }
  .project-impact p:last-child { font-size: 2.1rem; }
  .contact-value { width: auto; overflow-wrap: anywhere; }
}